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2012-04-01T20:06:48 <+Steffanx> nu
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2012-04-01T20:15:31 < davr> What do people recommend for a toolchain for stm32 on windows? I played around a bit with the free version of atollic, but am interested in something less propritary.
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2012-04-01T20:45:37 < neuro_sys> davr: I'd like to get an answer for that, too. been too lazy since I got my dev board. I'll probably go with gcc-arm and st-util on linux, though.
2012-04-01T20:53:44 <+Steffanx> yargarto ?
2012-04-01T20:55:07 < Thorn> I use codesourcery lite (or whatever it's called now, sourcery codebench?)
2012-04-01T21:10:18 <+dekar> isn't it mentor these days? (like everything else)
2012-04-01T21:11:21 < Thorn> yes, and they renamed it in some braindead way
2012-04-01T21:11:47 < Thorn> and buried it deep within their website too
2012-04-01T21:20:12 <+Steffanx> yargarto  :)
2012-04-01T21:24:38 < Thorn> do they support floating point in m4f?
2012-04-01T21:25:08 < _abc_> yagarto.de no 2nd r
2012-04-01T21:25:23 <+Steffanx> No first r :)
2012-04-01T21:26:04 < _abc_> test
2012-04-01T21:26:30 <+Steffanx> test succeeded
2012-04-01T21:34:09 <+izua> test failed, press ctrl+Esc, u, u to fix
2012-04-01T21:35:27 <+Steffanx> u
2012-04-01T21:35:28 <+Steffanx> u
2012-04-01T21:35:35 <+Steffanx> No, it isn't fixe
2012-04-01T21:35:35 <+Steffanx> d
2012-04-01T21:35:36 <+izua> run windows xp first
2012-04-01T21:35:42 <+izua> you can irc bro
2012-04-01T21:35:43 <+izua> see
2012-04-01T21:35:45 <+izua> it's fixed
2012-04-01T21:36:06 <+Steffanx> Found your password?
2012-04-01T21:36:35 <+izua> yep
2012-04-01T21:36:39 <+izua> booted the old server today
2012-04-01T21:37:27 <+izua> also made one of these bad boys: http://frxrie4ofpxhs4nz.onion/
2012-04-01T21:37:51 < Laurenceb_> doh
2012-04-01T21:37:56  * Laurenceb_ needs to use tor
2012-04-01T21:38:08 <+izua> it's not much, just dumps the date and a string
2012-04-01T21:38:08 < Laurenceb_> well.. everyone in the uk will have to soon
2012-04-01T21:38:36 <+izua> huh
2012-04-01T21:38:46 <+izua> finally switching to 1984 mode?
2012-04-01T21:38:49 < Laurenceb_> yes
2012-04-01T21:39:04 <+Steffanx> uk is new america
2012-04-01T21:39:22 < _abc_> Why do you have to use tor?!
2012-04-01T21:39:38 <+izua> you are summoned to court by RIAA because: doublepirate. you have played back in your head a song you heard on the radio
2012-04-01T21:40:38 < _abc_> izua: what toolchain do you use for your discovery board?
2012-04-01T21:40:40 <+izua> _abc_: it's a tor hidden service. it doesn't exist on the internet
2012-04-01T21:40:49 < _abc_> izua: I know very well what that is
2012-04-01T21:40:53 <+izua> ah
2012-04-01T21:40:58 <+izua> you can just use http://frxrie4ofpxhs4nz.onion.to/
2012-04-01T21:41:13 < _abc_> izua: what toolchain do you use for your discovery board?
2012-04-01T21:41:34 <+izua> vim + codesourcery
2012-04-01T21:42:36 <+izua> i use also openstm32 (or whatever is named nowadays), instead of stm32's libs
2012-04-01T21:42:47 <+izua> for the peripheral libs and commodity functions
2012-04-01T21:43:00 <+izua> but i tend to favor registry level access anyway
2012-04-01T21:43:10 < Laurenceb_> void grain(void)
2012-04-01T21:43:23 <+izua> heh
2012-04-01T21:43:24 <+izua> true
2012-04-01T21:49:01 < neuro_sys> I'm switching from PIC assembly to ARM stuff with a stm32f4discovery board. Is it going to be fun?
2012-04-01T21:49:23 <+izua> what pic?
2012-04-01T21:49:28 <+izua> what family, specifically
2012-04-01T21:49:28 < _abc_> lol
2012-04-01T21:49:45 < neuro_sys> mid-range, pic 16
2012-04-01T21:49:53 < neuro_sys> pic16f690 specifically.
2012-04-01T21:50:07 < _abc_> wow big jump
2012-04-01T21:50:17 < neuro_sys> haven't made the jump yet.
2012-04-01T21:50:17 < _abc_> it is going to be steep
2012-04-01T21:50:18 <+izua> yeah, they're a bit waaaay more complex
2012-04-01T21:50:26 < Thorn> btw is PIC32 actually MIPS?
2012-04-01T21:50:33 < _abc_> yes
2012-04-01T21:50:35 <+izua> peripherals, initial setup, operation, etc
2012-04-01T21:50:44 < neuro_sys> so what would be a better jump instead?
2012-04-01T21:50:53 < Thorn> nice. the lack of a free C compiler isn't
2012-04-01T21:50:56 <+izua> avr?
2012-04-01T21:51:08 < neuro_sys> alright then
2012-04-01T21:51:10 <+izua> unless..
2012-04-01T21:51:14 <+izua> depends what you want to do
2012-04-01T21:51:30 <+izua> a stm32 low end chip is cheaper than the most powerful 8 bit avr
2012-04-01T21:51:40 < _abc_> I find installing the stlink+etc open source tools on linux to be a cat herding affair.
2012-04-01T21:51:44 < neuro_sys> nothing in particular, other than toying around with various personal projects.
2012-04-01T21:51:45 < _abc_> Really hard work.
2012-04-01T21:51:58 <+izua> just program it over serial
2012-04-01T21:52:05 <+izua> you do know they have a serial bootloader, right?
2012-04-01T21:52:29 < _abc_> And finding documentation on st's website is more like herding mice
2012-04-01T21:52:47 <+izua> hmm
2012-04-01T21:52:49 <+izua> dekar:
2012-04-01T21:53:00 <+izua> ^ bug him. he had a mirror from last year or so of every pdf
2012-04-01T21:53:36 <+izua> the main doc is called a 'reference manual' or so, if you're looking for an avr-style datasheet. 1100 pages on the simpler cheaps, never checked on the higher end stuff
2012-04-01T21:53:44 <+izua> s/cheaps/chips
2012-04-01T21:53:45 < Thorn> you mostly need rm0008, pm0056 and a specific datasheet (for f1)
2012-04-01T21:54:22 <+izua> yeah, i think rm0008 is what i was refering to.
2012-04-01T21:55:00 < Thorn> f4 reference manual is not much larger. I guess that's because it's even more terse than rm0008
2012-04-01T21:55:43 <+izua> terse == !dense ? o_O
2012-04-01T21:56:08 <+izua> i never knew that was a word
2012-04-01T21:56:28 < zyp> or perhaps because the number of peripherals is not that different.
2012-04-01T21:57:14  * neuro_sys reads the topic.
2012-04-01T21:57:16 < neuro_sys> are z80 cpus still used today commercially?
2012-04-01T21:58:09 < Laurenceb_> i have one in my ti83+
2012-04-01T21:58:24 < zyp> F4 reference manual is around 23% longer than F1 reference manual, I'd say that's quite a bit, considering the F1 manual covers all F1 series including F105 and F107
2012-04-01T21:58:30 <+izua> neuro_sys: oh yeah
2012-04-01T21:58:38 <+izua> stm32 is by default a gpl enforcer :D
2012-04-01T21:58:58 < neuro_sys> they are certainly not in the same package and size as they were in 80s though right? probably with some improvements and a smaller package.
2012-04-01T21:59:17 <+izua> they are even available as hdl models
2012-04-01T21:59:18 < neuro_sys> my Amstrad cpc 6128's got a z80 a few inches long
2012-04-01T21:59:31 < neuro_sys> okay that was shamefully pointless.
2012-04-01T22:04:51 < _abc_> http://www.faz.net/aktuell/technik-motor/internationale-anforderungen-deutsche-rechtschreibung-wird-abermals-reformiert-11702725.html lol @Aprilscherz
2012-04-01T22:06:32 < _abc_> neuro_sys: Z80 is a 40 pin ic in DIL and thus exactly 2 inches long :)
2012-04-01T22:08:08 < neuro_sys> I was wondering why they aren't obsolete, since there're already a lot more efficient and cheaper stuff available.
2012-04-01T22:08:48 <+izua> wide acceptance
2012-04-01T22:09:53 <+dekar> izua, check that out: https://github.com/EliasOenal/TNT
2012-04-01T22:10:16 <+dekar> I uploaded my toolchain compile script to github
2012-04-01T22:10:42 <+izua> epic
2012-04-01T22:10:43 <+dekar> it works on OSX for me and it probably works with minor changes on linux as well
2012-04-01T22:11:10 <+izua> tappend it?
2012-04-01T22:11:45 <+dekar> append to the channels topic? sure why not
2012-04-01T22:12:30 <+izua> yeah
2012-04-01T22:12:36 <+izua> there's a chanserv command to do it too
2012-04-01T22:12:37 <+Steffanx> it doesn't download everything for me dekar ?
2012-04-01T22:12:50 <+dekar> it's the latest linaro gcc 4.6 with the latest newlib and reasonable settings for the stm32 (codesourcery has weird/stupid compile flags)
2012-04-01T22:12:58 <+izua> /say chanserv ##stm32 tappend dekar fails at ircoping
2012-04-01T22:12:58 <+izua> etc
2012-04-01T22:13:09 <+dekar> it expects you to place the stuff in the folder -.-"
2012-04-01T22:13:22 <+dekar> haha XD
2012-04-01T22:13:34 <+Steffanx> wget it with the script?
2012-04-01T22:13:40 <+dekar> I guess
2012-04-01T22:13:40 <+Steffanx> or use cURL
2012-04-01T22:13:47 <+izua> or git clone?
2012-04-01T22:13:51 <+dekar> I just made it for me and then someone asked me to upload it
2012-04-01T22:13:52 <+izua> it's just a shell script man
2012-04-01T22:13:54 <+Steffanx> or git clone
2012-04-01T22:13:56 <+izua> just load it in your browser
2012-04-01T22:14:00 <+izua> ctrl+a,. ctrl+c
2012-04-01T22:14:17 <+Steffanx> cmd .. :P
2012-04-01T22:14:20 <+dekar> so Steffanx, add it yourself and push the change :D
2012-04-01T22:14:29 <+dekar> or send me a patch
2012-04-01T22:14:31 <+dekar> or whatever
2012-04-01T22:14:40 <+dekar> the fixed script works as well
2012-04-01T22:14:49 <+dekar> just send me the file after you fixed it
2012-04-01T22:14:58 <+izua> mail it to him
2012-04-01T22:15:02 <+Steffanx> or the official way? Clone the repo, make the changes
2012-04-01T22:15:04 <+izua> or print the changes and snailmail 'em :D
2012-04-01T22:15:04 <+Steffanx> and do a pull request?
2012-04-01T22:15:38 <+Steffanx> german post
2012-04-01T22:15:49 <+Steffanx> *Deutsche post
2012-04-01T22:15:55 <+dekar> haha yeah
2012-04-01T22:16:13 <+dekar> Steffanx, I said push it, I think you can do that on github after you've cloned it
2012-04-01T22:16:20 <+izua> do you use black rectangular stamps?
2012-04-01T22:16:22 <+izua> taht would be epic
2012-04-01T22:16:24 <+dekar> oh pull request
2012-04-01T22:16:28 <+dekar> that I meant
2012-04-01T22:16:28 <+dekar> :D
2012-04-01T22:16:30 <+izua> when you lick 'em, you'd get a hitlerstache
2012-04-01T22:16:42 <+dekar> hehe
2012-04-01T22:17:02 <+Steffanx> lol
2012-04-01T22:17:20 <+dekar> "Deutsche post, turns you German too!"
2012-04-01T22:18:01 <+dekar> I just realized the linaro version I used is outdated anyway
2012-04-01T22:18:08 <+dekar> https://launchpad.net/gcc-linaro/4.6/4.6-2011.03-0
2012-04-01T22:18:18 <+dekar> so add that to the script when you add the wget stuff
2012-04-01T22:18:40 <+Steffanx> os x has no wget by default iirc
2012-04-01T22:19:00 <+dekar> then do "sudo port install wget"
2012-04-01T22:19:01 <+dekar> :D
2012-04-01T22:19:26 <+dekar> or add a parameter allowing people to decide on their own
2012-04-01T22:19:29 <+Steffanx> or curl?
2012-04-01T22:19:37 <+Steffanx> don't know if os x has curl by default
2012-04-01T22:19:37 <+dekar> my problem is that I don't know bash scripts :P
2012-04-01T22:19:43 <+Steffanx> me neither
2012-04-01T22:20:17 <+dekar> $ whereis curl
2012-04-01T22:20:18 <+dekar> /usr/bin/curl
2012-04-01T22:20:21 <+dekar> use curl
2012-04-01T22:20:46 <+dekar> macports stuff is in /opt I think
2012-04-01T22:20:52 <+Steffanx> whereis wget fails here :(
2012-04-01T22:21:02 <+Steffanx> I DO have wget
2012-04-01T22:21:23 <+dekar> fails for me for all macports binaries
2012-04-01T22:21:30 <+Steffanx> Ah
2012-04-01T22:23:09 <+dekar> I am working on a public domain USB-HID lib atm btw
2012-04-01T22:23:23 <+dekar> the osx part is about half done
2012-04-01T22:24:02 <+dekar> I was fine with HIDAPI, but it did behave weird when I called it from a QThread, which makes no sense to me
2012-04-01T22:24:33 <+dekar> also mine will allow you to register hotplug events and optional callbacks
2012-04-01T22:26:13 < zyp> Steffanx, os x do have curl by default, but not wget
2012-04-01T22:26:25 <+dekar> Steffanx, ftp://sources.redhat.com/pub/newlib/index.html
2012-04-01T22:26:40 <+dekar> Steffanx, http://ftp.gnu.org/gnu/binutils/
2012-04-01T22:29:33 < _abc_> Speaking of which, why the h*** don't ANY linux distros install the gcc compilation prerequisite libs?
2012-04-01T22:29:48 < _abc_> I always find myself scrambling for them when I need to recompile gcc
2012-04-01T22:29:58 <+dekar> chanserv ##stm32 Join us building the ##stm32-toolchain: https://github.com/EliasOenal/TNT
2012-04-01T22:30:15 < _abc_> And some, like debian, don't even pack them in the standard pool. mcp is a music playing lib in debian!
2012-04-01T22:30:34 < Thorn> ubuntu has a package called build-essential
2012-04-01T22:30:43 < _abc_> I am not using ubuntu
2012-04-01T22:30:56 < _abc_> If I need bare metal (frequently) I go with slack
2012-04-01T22:30:59 <+izua> _abc_: gentoo does
2012-04-01T22:31:06 < _abc_> hm
2012-04-01T22:31:07 <+dekar> "apt-get build-dep gcc"
2012-04-01T22:31:09 <+izua> but it doesn't 'install' them
2012-04-01T22:31:17 < _abc_> I'd rather have arch or slack
2012-04-01T22:31:31 <+dekar> it's one command
2012-04-01T22:31:49 <+izua> dekar: erm
2012-04-01T22:31:52 <+izua> /msg i think
2012-04-01T22:32:00 <+izua> whoopsie :D
2012-04-01T22:32:15 <+izua> also ##stm32 tappend or so
2012-04-01T22:32:25 <+dekar> off, _you_ should append what you said to me earlier :P
2012-04-01T22:32:29 <+dekar> *pff
2012-04-01T22:32:42 <+izua> rofl
2012-04-01T22:32:49 <+izua> you can do it manually to
2012-04-01T22:32:59 <+izua> /topic ^V old topic | type newer stuff here
2012-04-01T22:33:08 <+izua> or just be an ass and /topic fuck your old topic
2012-04-01T22:34:35 -!- mode/##stm32 [+o dekar] by ChanServ
2012-04-01T22:34:39 -!- dekar changed the topic of ##stm32 to: code protection bug: http://tinyurl.com/4469sbn | Prepare for the two minutes of /hate/love. this channel is publicly logged, ask zlog for more. (also for free z80s) | Join us building the ##stm32-toolchain: https://github.com/EliasOenal/TNT
2012-04-01T22:34:59 <@dekar> I just used the xchat line-edit :)
2012-04-01T22:35:06 < Thorn> why ##stm32-toolchain? is it a new channel?
2012-04-01T22:35:07 <@dekar> no need to learn irc :P
2012-04-01T22:35:12 <@dekar> oh
2012-04-01T22:35:13 <@dekar> uhm
2012-04-01T22:35:17 <+izua> lol
2012-04-01T22:35:19 <+izua> dilemma
2012-04-01T22:35:24 -!- dekar changed the topic of ##stm32 to: code protection bug: http://tinyurl.com/4469sbn | Prepare for the two minutes of /hate/love. this channel is publicly logged, ask zlog for more. (also for free z80s) | Join us building the ##stm32 toolchain: https://github.com/EliasOenal/TNT
2012-04-01T22:35:36 <+izua> we should probably have a wiki or such
2012-04-01T22:35:48 <@dekar> izua, didn't you make one like years ago?
2012-04-01T22:35:51 < _abc_> just get a channel bot which replies privately
2012-04-01T22:35:59 <+izua> yeah, crashed with the hdd
2012-04-01T22:36:07 < _abc_> izua: what projects did you make with your discovery?
2012-04-01T22:36:12 <@dekar> so all my posts are gone O.o
2012-04-01T22:36:33 <+izua> nothing final, just experimented with the peripherals
2012-04-01T22:36:36 <+izua> wait.
2012-04-01T22:36:41 <+izua> you posted on my wiki o_O?
2012-04-01T22:36:43 < Thorn> I suggested a wiki like 6 months ago
2012-04-01T22:36:45 <@dekar> haha j/k
2012-04-01T22:36:46 <+izua> it was like 10 pages big
2012-04-01T22:37:38 <+izua> _abc_: i've been messing with a board from futurlec, which has a f103, instead of the f101 on the discovery, thus usb
2012-04-01T22:37:56 < zyp> imo. there shouldn't be any reason to have a seperate channel for toolchain
2012-04-01T22:38:19 <@dekar> there is no other channel besides this one
2012-04-01T22:38:47 < _abc_> There is openocd ...
2012-04-01T22:39:01 < _abc_> Anyway just redirect the wannabe stm32 channels to here
2012-04-01T22:39:12 < _abc_> #stm32discovery could be redirected too heh
2012-04-01T22:39:23 <+izua> made a bigscreeoh
2012-04-01T22:39:39 <+izua> _abc_: final thing was a big-screen like interface for some museum toy, only to mess with usb
2012-04-01T22:39:47 <+izua> oh, there's stm32discovery?
2012-04-01T22:41:07 < _abc_> no :)
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2012-04-01T22:44:12 <@dekar> izua, https://github.com/EliasOenal/TNT/wiki
2012-04-01T22:44:17 <@dekar> how about the github wiki?
2012-04-01T22:44:23 <@dekar> just for convenience
2012-04-01T22:46:00 <@dekar> I'll add you as admins to the project, just give me your github account
2012-04-01T22:48:22 -!- mode/##stm32 [-o dekar] by ChanServ
2012-04-01T22:48:27 < _abc_> hey you can link the wiki into the channel topic
2012-04-01T22:49:16 <+dekar> well I felt like waiting for the other ops to approve
2012-04-01T22:49:34 <+dekar> maybe izua prefers hosting a proper wiki
2012-04-01T22:50:33 < Thorn> I can host a dokuwiki
2012-04-01T22:50:56 < Thorn> or even a mediawiki (which I hate)
2012-04-01T22:51:27 <+dekar> I could host stuff as well, I just think using the github one is more convenient
2012-04-01T22:51:40 <+dekar> we could always move if we felt like
2012-04-01T22:51:47 <+izua> i can host stuff too, sure
2012-04-01T22:52:04 <+izua> Thorn: why dokuwiki over mediawiki?
2012-04-01T22:52:34 <+dekar> cause mediawiki is mainstream, duh!
2012-04-01T22:52:38 <+izua> dekar: i don't have a github account. i could make one, though, but it sounds rather silly having a github account just to access the wiki :P
2012-04-01T22:52:39 < Thorn> mediawiki spambots among other things
2012-04-01T22:53:00 <+dekar> izua, you could port the toolchain script to cygwin :)
2012-04-01T22:53:19 <+izua> Thorn: registration can be selective, each post can require a captcha, each diff can be checked for spam words, etc
2012-04-01T22:53:31 <+izua> it's a pita to admin in the end though
2012-04-01T22:53:34 <+izua> dekar: lol
2012-04-01T22:53:39 < Thorn> how much effort is required to set it all  up?
2012-04-01T22:53:42 <+dekar> just add basicauth
2012-04-01T22:53:51 <+dekar> and add the password to the title of this channel
2012-04-01T22:54:09 <+izua> dunno, probably an hour or with all the antispam features and cool stuff
2012-04-01T22:54:20 <+izua> ie, not much
2012-04-01T22:54:41 <+dekar> izua, you're hosting on your home pc, aren't you?
2012-04-01T22:54:43 <+izua> dekar: because channel titles can't be pulled out without joining the channel
2012-04-01T22:54:46 <+izua> nah, bought a vps
2012-04-01T22:54:55 <+dekar> hm okay
2012-04-01T22:55:13 <+izua> it was a dedicated pc at home though, not really a home pc :P
2012-04-01T22:55:14 <+dekar> I got a root server, but I don't like all that admin stuff :P
2012-04-01T22:55:26 <+izua> i have root too
2012-04-01T22:55:39 <+izua> but i don't have any of the web admin stuff
2012-04-01T22:56:08 <+dekar> I mean admin work in general, setting up virtual hosts etc
2012-04-01T22:56:19 <+dekar> somehow I broke my virtual host stuff anyway
2012-04-01T22:56:55 <+dekar> also my debian lenny ran out of support, gotta update soon -.-"
2012-04-01T22:57:08 <+dekar> servers are so annoying
2012-04-01T22:57:38 <+dekar> I guess it's just nothing I enjoy doing
2012-04-01T22:58:02 <+dekar> izua, do backups this time, kay?
2012-04-01T22:58:32 <+dekar> I use backupPC, it pulls daily backups off all my servers as well as my laptop
2012-04-01T22:59:34 <+izua> not enough space brah
2012-04-01T22:59:37 <+izua> well
2012-04-01T22:59:39 <+izua> for the vps, yeah
2012-04-01T22:59:43 <+izua> that's already backuped
2012-04-01T22:59:54 <+izua> but the home pc had the only terabyte hdd around
2012-04-01T23:00:26 <+izua> yeah, i think i used backuppc about 4 years ago when i was employed for a while
2012-04-01T23:00:44 <+izua> mkay
2012-04-01T23:01:20 <+dekar> did you guys read about the software radio hacks?
2012-04-01T23:01:31 <+dekar> I ordered two of those usb dongles
2012-04-01T23:01:42 <+izua> where you insert a packet frame start?
2012-04-01T23:01:59 <+dekar> using cheap usb TV sticks as software radios
2012-04-01T23:02:03 <+dekar> 50-1700mhz
2012-04-01T23:02:06 <+dekar> really epic
2012-04-01T23:02:23 <+izua> they will really really suck without the intermediate stage & filtering
2012-04-01T23:02:26 < BrainDamage> they'll need some modification
2012-04-01T23:02:29 <+dekar> you get them for around $10 from china
2012-04-01T23:02:31 < BrainDamage> like a LNA
2012-04-01T23:02:35 < BrainDamage> and a decent connector
2012-04-01T23:03:03 -!- ChanServ changed the topic of ##stm32 to: code protection bug: http://tinyurl.com/4469sbn | Prepare for the two minutes of /hate/love. this channel is publicly logged, ask zlog for more. (also for free z80s) | Join us building the ##stm32 toolchain: https://github.com/EliasOenal/TNT | wiki coming soon, suggestions for the script? dokuwiki: 1, mediawiki: 1. talk to izua, dekar or steffanx
2012-04-01T23:03:04 < BrainDamage> and probably an impedance matching network since it wants 75Ohm, and most stuff instead uses 50
2012-04-01T23:03:13 <+dekar> the one I ordered has an MCX connector
2012-04-01T23:03:16 <+dekar> I think that's decent
2012-04-01T23:03:32 < BrainDamage> pal ones are not even 75 Ohm
2012-04-01T23:03:34 <+dekar> I vote for mediawiki
2012-04-01T23:03:48 < BrainDamage> so even by plugging 75 Ohm, you'll get reflection :/
2012-04-01T23:04:16 < BrainDamage> I espect a lot of people being disappointed by it
2012-04-01T23:04:22 < BrainDamage> I mean, they are super-awesome
2012-04-01T23:04:33 < BrainDamage> but they are not plug-and-play, like someone might espect
2012-04-01T23:05:05 <+dekar> I don't expect much, being able to decode FM in software would be awesome :)
2012-04-01T23:05:23 <+dekar> and everything else is added bonus
2012-04-01T23:05:42 <+dekar> I just hope to learn more about RF
2012-04-01T23:06:29 <+dekar> MCX to SMA pigtails are cheap as well
2012-04-01T23:06:46 < BrainDamage> I mean that without an LNA, filtering, matching impedance and other additional circuits, the thing won't work
2012-04-01T23:07:28 < BrainDamage> I got one for myself, but I espect it'll need some thinkering
2012-04-01T23:08:28 <+dekar> that's the one I ordered: http://www.areadvd.de/images/2009/hama%20nano/hama_dvbt_match.jpg
2012-04-01T23:09:03 <+dekar> well they have an amplifier inside already
2012-04-01T23:09:13 <+dekar> and it works for TV, so I don't think it is too bad
2012-04-01T23:09:49 <+dekar> and they use these uber tiny antennas for TV reception
2012-04-01T23:10:31 <+dekar> so I don't expect any tinkering
2012-04-01T23:10:49 <+dekar> FM should have a strong enough signal anyway
2012-04-01T23:11:48 -!- ChanServ changed the topic of ##stm32 to: code protection bug: http://tinyurl.com/4469sbn | Prepare for the two minutes of /hate/love. this channel is publicly logged, ask zlog for more. (also for free z80s) | Join us building the ##stm32 toolchain: https://github.com/EliasOenal/TNT | wiki coming soon, suggestions for the script? dokuwiki: 1, mediawiki: 2. talk to izua, dekar or steffan
2012-04-01T23:12:01 <+izua> i don't think signal strength is always the problemn
2012-04-01T23:12:53 <+dekar> I read they outperform the funcube dongle which is like 170usd
2012-04-01T23:14:23 <+dekar> they even have an oven to heat the crystal, I read they get 45°C at the outside XD
2012-04-01T23:16:16 <+dekar> izua, http://al.robotfuzz.com/~al/rtl2832/output.wav
2012-04-01T23:16:20 <+dekar> seems to work fine
2012-04-01T23:17:12  * philpem is waiting for his RTL2832 dongle to arrive from dealextreme :-/
2012-04-01T23:17:13 <+izua> link to main project?
2012-04-01T23:17:16 <+izua> dekar: o_O
2012-04-01T23:17:20 <+izua> neat
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2012-04-01T23:18:04 <+izua> dekar: but if it's a tv tuner
2012-04-01T23:18:16 <+izua> doesn't that mean it's not a TRXer, just a RXer?
2012-04-01T23:18:22 < BrainDamage> correct
2012-04-01T23:18:38 <+Steffanx> nu
2012-04-01T23:18:40 < BrainDamage> it's a LNA + mixer + IF filter + adc
2012-04-01T23:18:51 < BrainDamage> but a very low gain LNA
2012-04-01T23:19:30 <+dekar> izua, http://sdr.osmocom.org/trac/wiki/rtl-sdr
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2012-04-01T23:20:38 <+dekar> izua, like I said it is said to outperform the funcube dongle which was designed to receive satellite signals
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2012-04-01T23:22:59 <+dekar> izua, the cubefun dongle is only RX as well btw, TX always seems to be really expensive
2012-04-01T23:23:34 <+dekar> *funcube
2012-04-01T23:24:54 <+dekar> philpem, last time I ordered from DX it tool 2 months, be patient :P I think the fastest delivery I had from DX was 5 weeks
2012-04-01T23:25:01 <+dekar> *took
2012-04-01T23:26:00 < philpem> yeah, they're slow as molasses
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2012-04-01T23:26:42 < BrainDamage> dekar: the clock speed of the adc is much higher, but the resolution is 8 bit vs 16 of the funcube
2012-04-01T23:27:13 < BrainDamage> altough you can recover some bits if you restrict the bandwith trough digital filtering and interpolate
2012-04-01T23:27:15  * philpem wonders if it has the range to pull in DVB-S or aircraft radar transponder bursts
2012-04-01T23:27:29 <+dekar> BrainDamage, funcube has 12bit
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2012-04-01T23:27:51 < BrainDamage> bah, the comments here http://www.funcubedongle.com/?page_id=74 said 16 :/
2012-04-01T23:29:27 <+dekar> http://tinyurl.com/cwkdh39
2012-04-01T23:29:34 <+dekar> that says 12bit as well
2012-04-01T23:29:38 <+dekar> search for "12 bit"
2012-04-01T23:30:37 <+dekar> I don't think it matters that much anyway, audio at 8bit sounds fine as well
2012-04-01T23:30:48 <+Steffanx> 8bit music rocks
2012-04-01T23:30:53 <+Steffanx> Chiptunes ftw :P
2012-04-01T23:30:59 <+dekar> Steffanx, that's not what I mean
2012-04-01T23:31:19 < BrainDamage> as I said, you can recover bits thanks to oversampling theorem
2012-04-01T23:31:20 <+dekar> just normal music at 8bit still sounds good
2012-04-01T23:31:22 <+Steffanx> but it's what you said
2012-04-01T23:31:46 <+dekar> early CD players only used 12 out of 16bit anyway
2012-04-01T23:31:48 < BrainDamage> also, the only mention of 12 bits is to a packet size
2012-04-01T23:32:08 < BrainDamage> cds themselves uses oversampling @ source to gain SNR >_>
2012-04-01T23:32:12 < justitguy_> Steffanx, you must have ears damaged by using earbuds at 120 dB.  LOL  8-bits does not carry enough info to render 20 Hz to 25 Khz well, never has, never will.
2012-04-01T23:32:35 < BrainDamage> word size has nothing to do with frequency components
2012-04-01T23:33:18 < BrainDamage> also, audio spectrum is widely reckognized to be 20Hz - 20kHz, and the 20kHz is already pulling it
2012-04-01T23:33:20 < justitguy_> Yes, it does.  Nyquest sampling DOES affect reproduction of sound (or any other waveform).
2012-04-01T23:33:34 < BrainDamage> that's a condition on frequency
2012-04-01T23:33:43 < BrainDamage> not ampltude discretization
2012-04-01T23:33:44 < Laurenceb_> my dongle never arrived :(
2012-04-01T23:33:52 < Laurenceb_> ordered over a week ago
2012-04-01T23:34:01 < Laurenceb_> from cozycave.co.uk
2012-04-01T23:34:01 < BrainDamage> amplitude discretization adds a rounding error
2012-04-01T23:34:24 < BrainDamage> which you can build a noise equivalent model
2012-04-01T23:34:34 < justitguy_> You said it, I did not.  That's why MP3 is really horrible.
2012-04-01T23:34:46 < BrainDamage> you're mixing a lot of stuff
2012-04-01T23:34:56 <+dekar> hell there even was this weird audio format for audiophiles that only had 1bit audio at extreme sampling rates
2012-04-01T23:34:58 < BrainDamage> which are unrelated
2012-04-01T23:35:07 < BrainDamage> dekar: CD are sigma delta
2012-04-01T23:35:13 < BrainDamage> bitstream
2012-04-01T23:35:37 <+dekar> super audio CD
2012-04-01T23:35:38 <+dekar> http://en.wikipedia.org/wiki/Direct_Stream_Digital
2012-04-01T23:35:43 <+izua> dekar: to feed directly in a D class amp?
2012-04-01T23:36:35 <+izua> dekar: ah
2012-04-01T23:36:47 <+izua> that's sort of reverse PWM
2012-04-01T23:36:59 <+dekar> it still is said to perform fine
2012-04-01T23:37:03 < BrainDamage> it does
2012-04-01T23:37:16 <+dekar> so I barely care about the resolution
2012-04-01T23:37:18 <+izua> the dongle?
2012-04-01T23:37:20 <+izua> yeah, looks epic
2012-04-01T23:37:48 <+izua> shame TXing doesn't come around so easy
2012-04-01T23:38:12 <+dekar> the dongle has up to 3.2 mega samples where as the cubefun one only has around 90 kilo samples iirc
2012-04-01T23:38:14 <+izua> <random> i am making polenta </random>
2012-04-01T23:38:42 < justitguy_> Just jumped into this, should not have.  Am in the hills (Beverly) talking to my cousin who (HUGE) produces movies AND I perhaps have been listening to the music prople too long.  I am not in the biz, but do enjoy the company from time to time.
2012-04-01T23:39:33 < BrainDamage> justitguy_: there's a lot of misinformation about audio :/
2012-04-01T23:40:03  * dekar likes mp3
2012-04-01T23:40:05 < BrainDamage> if you want to have laughs: http://lessloss.com/ 90% there is bullshit
2012-04-01T23:40:53 < justitguy_> BrainDamage, I know that.  I grew up listening to family (one consert mistress of Cleveland Orchestra) and lots of name performers.  I knew recording when done on wax...LOL
2012-04-01T23:41:00 <+dekar> one of those voodoo product sellers?
2012-04-01T23:41:18 < BrainDamage> yup, check their "firewall power conditioner"
2012-04-01T23:41:51 <+dekar> LOL: http://www.lessloss.com/dfpc-signature-p-199.html
2012-04-01T23:41:52 < BrainDamage> "no inductances", "no capacitances" "no hint of digititis"
2012-04-01T23:42:02 <+dekar> like that would make the tiny cable in the wall any better
2012-04-01T23:43:17 <+dekar> oh well if some people think it improves their sounds...
2012-04-01T23:43:25 <+dekar> I'll keep listening to my mp3s :D
2012-04-01T23:43:32 < justitguy_> So, does anyone here actually write/port code to the STM32?  Actually am playing with a new STM32F207 and STM32f407 and on board ethernet and LwIp with SSL accel.
2012-04-01T23:43:53 < justitguy_> Who, if anyone is doing this?
2012-04-01T23:44:26 <+dekar> I am writing code for the stm32, but it's all proprietary and my boss allows no sharing :/
2012-04-01T23:44:59 < zyp> I would guess that anybody here writes code for the stm32, why would they be here otherwise?
2012-04-01T23:45:07 <+izua> i somehow fail to understand how any sort of wave will propagate without capacitance and inductance
2012-04-01T23:45:32 <+izua> also lol
2012-04-01T23:45:34 < justitguy_> Hey zyp, thought you fell off the edge of the earth ...
2012-04-01T23:45:39 <+izua> digititis?
2012-04-01T23:45:42 <+izua> is that like oneitis?
2012-04-01T23:45:46 < zyp> justitguy_, missed me?
2012-04-01T23:45:58 < Thorn> .id university websites have a huge amount of pirated books online
2012-04-01T23:46:08 < justitguy_> Sure, whom else would I yell at?
2012-04-01T23:46:12 < justitguy_> LOL
2012-04-01T23:46:14 < zyp> :)
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2012-04-01T23:47:06 < justitguy_> dekar, nobody is asking you to provide code, just share experiences/problems/fixes in general.
2012-04-01T23:47:40 < zyp> are there any particular experiences you're thinking of then?
2012-04-01T23:48:06 < zyp> I haven't touched ethernet yet
2012-04-01T23:48:09 < justitguy_> Problems with STM code libs, problems with porting ...
2012-04-01T23:48:50 < justitguy_> I generally only do ethernet so curious about other's experiences.
2012-04-01T23:49:13 < zyp> I've played a bit with usb lately, documentation is horrible
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2012-04-01T23:50:11 < justitguy_> zyp, is is not really too bad if you understand how to negotiate the connection and then talk to the endpoints.  But, it is just another protocol.
2012-04-01T23:50:44 < zyp> I'm talking about the documentation for the usb peripherals in the F4 reference manual
2012-04-01T23:51:24 < justitguy_> F4 is backwards compat.  USB is USB and nothing changes ... just setting up the dividers.
2012-04-01T23:51:37 <+izua_> uh
2012-04-01T23:51:45 <+izua_> what is the main difference between f1, f2 and f4
2012-04-01T23:51:51 <+izua_> extra peripherals?
2012-04-01T23:51:51 <+Steffanx> speed
2012-04-01T23:51:52 < Thorn> it has a completely different usb core doesn't it
2012-04-01T23:51:55 <+Steffanx> fpu
2012-04-01T23:51:59 < zyp> F4 is F2 with M4F core
2012-04-01T23:52:03 <+izua_> ooooh
2012-04-01T23:52:08 <+izua_> speed is good
2012-04-01T23:52:09 <+Steffanx> aaaah
2012-04-01T23:52:09 <+izua_> fpu is epic
2012-04-01T23:52:16 < zyp> and they have the same usb core as F107
2012-04-01T23:52:40 < zyp> faster than fpu emulation at least
2012-04-01T23:52:41 <+izua_> i never messed with anything apart from f101 and f103 :/
2012-04-01T23:52:56 < justitguy_> Not that that matters for peripherals.
2012-04-01T23:53:36 < Thorn> with luck I'll receive my PCBs tomorrow and if I assemble one and get it working I'll be doing CAN
2012-04-01T23:53:55 < justitguy_> Only missing, perhaps in STM32F5 is an MMU.  Core change (but compat) and that would be really cool!
2012-04-01T23:54:34 < justitguy_> No kidding flyback, you educate us all.  LOL
2012-04-01T23:54:54 < Thorn> imo they'll never put a mmu into a mcu
2012-04-01T23:55:10 < justitguy_> Thorn, they already do.
2012-04-01T23:55:28 < zyp> justitguy_, since you obviously know everything about usb, you wouldn't happen to know how to select the internal PHY of the OTG_HS peripheral in the F4?
2012-04-01T23:55:31 < Thorn> a full mmu with virtual memory I mean
2012-04-01T23:55:45 < zyp> justitguy_, because that's not documented properly in the reference manual
2012-04-01T23:56:09 < justitguy_> Not off the top of my head, but can send you code examples.
2012-04-01T23:56:59 < zyp> justitguy_, well, I have it working now
2012-04-01T23:57:04 < justitguy_> Remember, on a VPN to my home and at a party elsewhere ... always travel with connectivity.
2012-04-01T23:57:27 < justitguy_> zyp, good, not so hard afterall eh?
2012-04-01T23:57:32 < zyp> I think I spent an entire day picking apart example code to try understand how it worked
2012-04-01T23:58:16 < justitguy_> flyback, chill.  I do not think anyone disagrees that some people do evil things, but this is not the place to express that.
2012-04-01T23:59:07 < justitguy_> flyback, I do happen to do that exactly.  But that is another subject.
2012-04-01T23:59:37 < zyp> justitguy_, well, it's not so hard when I now know what to do, I just have to set some undocumented bit in a register (it's listed as reserved), wait a while and then reset the core
--- Day changed Mon Apr 02 2012
2012-04-02T00:01:00 < zyp> justitguy_, but it's kind of hard to figure out when the documentation tells you nothing and you only have some horribly messy example code
2012-04-02T00:01:46 < justitguy_> flyback, What do you do when the energy scavenger has not charged the transmitter enough to send?
2012-04-02T00:02:07 < justitguy_> Not clear, charge the power supply for the tx link.
2012-04-02T00:02:52 <+dekar> well general problems like the CMSIS libs containing undefined assembly? you have to patch them in order to have them compile using the latest GCC
2012-04-02T00:03:26 <+dekar> I am also sharing my toolchain :)
2012-04-02T00:04:04 < justitguy_> flyback, look at the TI 430 series.  You will own the country if you can actually design a cost-effective solution, get a politician to sponsor the bill to require use, get it funded and keep control.  LOL
2012-04-02T00:05:27 < justitguy_> flyback, So we will expect you on the hill as the expert on the technology (with a congressman in your pocket) and ram it thru?
2012-04-02T00:08:10 <+dekar> couldn't one make a scope out of those dongles?
2012-04-02T00:09:31 < justitguy_> of course, then why waste time?  I assume you are young so you have a wide vista.  Use it and your vision to solve problems.  Do not concentrate on the technology (that is bottom-up thinking), be a visionary and propose rather "this is the problem, here is are technologies that might work".  Your thinking is bounded by what you see others doing -- what you could do with it.
2012-04-02T00:10:43 <+dekar> flyback, should I feel offended now?
2012-04-02T00:10:53 < justitguy_> Not at all.
2012-04-02T00:11:04 <+dekar> nope, german :)
2012-04-02T00:11:05 <+Steffanx> Even worse..
2012-04-02T00:11:32 <+Steffanx> Says …. the yankie
2012-04-02T00:12:03 <+dekar> 75% kraut here, the rest is turkish
2012-04-02T00:12:04 < justitguy_> Steffanx, you only have it 50% correct, other half is French.  But, I a really an American and rather global in my perspective.
2012-04-02T00:12:12 <+Steffanx> flyback is..
2012-04-02T00:12:39 <+Steffanx> At least i'm 100% dutch
2012-04-02T00:13:08 < justitguy_> Steffanax, Who cares?  Why would you attach importance to country as opposed to HUMANITY?
2012-04-02T00:13:44 <+Steffanx> I don't.. it was just a 'statement'
2012-04-02T00:14:21 <+Steffanx> Your finger is too fat, huh? :P
2012-04-02T00:14:32 < justitguy_> A statement with an implication that persons from countries are better? / smarter ?
2012-04-02T00:14:54 <+Steffanx> Nah, just never take my words too serious
2012-04-02T00:14:54 < justitguy_> Have a better view and understanding of the world?
2012-04-02T00:15:34 < justitguy_> Steffanx, then I suggest you not say them.  Words not considered are words that will haunt you.
2012-04-02T00:16:15 <+Steffanx> You can say whatever you want on the first of april :P
2012-04-02T00:16:50 < justitguy_> But, only on that day and only if you would be the April fool. LOL
2012-04-02T00:17:31 <+Steffanx> I'm a fool, so for me it's the first of april everyday
2012-04-02T00:19:45 < justitguy_> Good for you Steffanx, so suggest you simply be quiet, know you are a fool and watch only.  Crawl out of the dark when the light comes on and you are no longer "the fool".  Perhaps you will have terrific contributions and you can quietly fade back into your secret place.
2012-04-02T00:20:24 <+Steffanx> Sounds like batman
2012-04-02T00:20:44 < justitguy_> If you wish.
2012-04-02T00:21:37 <+Steffanx> You want to hear my other wishes too?
2012-04-02T00:21:38 < justitguy_> What you put on your toybelt of your vision/invention/production would be interesting.
2012-04-02T00:21:56 < justitguy_> Sure, what do you have in mind?
2012-04-02T00:22:41 <+Steffanx> Maybe i'll tell you.. once
2012-04-02T00:22:52 < justitguy_> Actually, Steffanx I (and the world) would be most impressed by those things you have DONE.
2012-04-02T00:23:14 <+Steffanx> Or not
2012-04-02T00:23:17 < justitguy_> Okay, Steffanx shoot from the hip.
2012-04-02T00:24:48 <+Steffanx> Just to clarify some things.. you are on IRC for at least 10 years aren't you justitguy_ ?
2012-04-02T00:25:00 <+Steffanx> *use irc
2012-04-02T00:25:14 < justitguy_> Probably, when it was DARPA.
2012-04-02T00:26:06 < justitguy_> I am the "old man" here, pragmatic, nurturing but BS intolerant.
2012-04-02T00:26:49 <+Steffanx> And homemade guru?
2012-04-02T00:27:33  * zyp sits proudly on justitguy_'s lawn
2012-04-02T00:28:15 < justitguy_> Steffanx, no educated with three degrees from Stanford.
2012-04-02T00:28:27 <+Steffanx> Oh, fancy
2012-04-02T00:28:50 < justitguy_> Nothing fancy. Just always looking for talent.
2012-04-02T00:30:39 < justitguy_> And ability to solve problems, people with vision who have a desire to create.
2012-04-02T00:30:40 <+Steffanx> You said you don't know a 'avrphreaque'(or something like that), didn't you?
2012-04-02T00:30:54 < justitguy_> ??
2012-04-02T00:31:05 <+Steffanx> You talk like him :P
2012-04-02T00:31:25 <+Steffanx> Someone who's banned from many channels and …
2012-04-02T00:31:33 <+Steffanx> Someone like flyback :P
2012-04-02T00:31:41 < justitguy_> No, not possible.  I am not he.
2012-04-02T00:31:59 <+Steffanx> Probably not, that guy was old.. and sick
2012-04-02T00:32:09 <+Steffanx> And I wonder if he's still on earth
2012-04-02T00:33:41 < justitguy_> Why concern youself with that?  First, I am not that person, Two, you are here to learn, right?  Take ideas/wisdom as you find it and run with it.  Have success so that you are happy and let the world spin.
2012-04-02T00:34:21 <+Steffanx> Whatever
2012-04-02T00:34:44 <+Steffanx> I'm here for that, and more
2012-04-02T00:35:10 < justitguy_> Well reasoned response.  You will earn respect everywhere you go with that "whatever".
2012-04-02T00:35:11 <+Steffanx> One of that things if to have useless talks with you
2012-04-02T00:35:23 <+Steffanx> *is
2012-04-02T00:35:41 < justitguy_> Good, Steffanx then why do you keep asking?
2012-04-02T00:36:25 <+Steffanx> We need something to talk about
2012-04-02T00:37:21 < justitguy_> Steffanx, you ask/challenge/demand all the and I always wonder if you are on this channel only to be the alpha or you really want to know something and you will contribute anything.
2012-04-02T00:37:45 < zyp> I wonder the same about you
2012-04-02T00:37:49 <+Steffanx> lol
2012-04-02T00:37:54 < justitguy_> Yes, you should.
2012-04-02T00:37:59 < zyp> :)
2012-04-02T00:38:42  * izua_ sets mode +b *!*@!
2012-04-02T00:39:00 <+Steffanx> :)
2012-04-02T00:39:13 < justitguy_> I don't accept solutions/fixes from just anyone.  But, I do always want to solve problems.  Right now, I need more Champagne and look at very beautiful people.
2012-04-02T00:39:24 <+Steffanx> Most of the time this channel is quiet anyway
2012-04-02T00:39:36 < zyp> do you want some pics of me?
2012-04-02T00:39:53 <+Steffanx> Beardman
2012-04-02T00:39:57 < justitguy_> zyp, are you soliciting?
2012-04-02T00:39:58 <+Steffanx> :P
2012-04-02T00:40:05 < zyp> :p
2012-04-02T00:42:48 < justitguy_> Extraordinary food here.  Now, I must eat or I will jump into an infinity pool "au bord de mer" and need to be revived ... LOL
2012-04-02T00:42:52 <+Steffanx> Can't you guys take this to another channel or private please?
2012-04-02T00:43:09 <+Steffanx> -'t
2012-04-02T00:43:29 < justitguy_> Steffanx, I am not soliciting, I am just hungry to eat some food.
2012-04-02T00:43:37 <+Steffanx> okok
2012-04-02T00:43:49 <+Steffanx> Spaghetti part 2?
2012-04-02T00:43:57 < zyp> I just ate
2012-04-02T00:46:27 <+Steffanx> Enough websites on the web to make you less hungry justitguy_ :P
2012-04-02T00:47:35 < justitguy_> Steffanx, not on premises.  Fillet is perfect, med rare, asparagus perfect, baked potato with caviar extraordinary.
2012-04-02T00:48:15 <+Steffanx> It sounds ok, except for the cavair
2012-04-02T00:48:17 <+Steffanx> iar
2012-04-02T00:49:27 < justitguy_> Love caviar Steffanx so perfect for me.  I could eat Iranian caviar for breakfast.  Think it time to join my family ... nice chatting? with y'all.
2012-04-02T00:50:07 <+Steffanx> Have fun
2012-04-02T00:52:09 < Tom_itx> yuck
2012-04-02T00:52:10 <+dekar> you still haven't banned him? O.o
2012-04-02T00:52:21 < Tom_itx> no authority
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2012-04-02T01:13:01 <+Steffanx> dekar has
2012-04-02T01:13:21 <+Steffanx> So I wonder why he even asked
2012-04-02T01:35:28 <+dekar> oh, I though you were op as well
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2012-04-02T01:38:03 < justitguy> Thanx jpa
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2012-04-02T02:00:03 < neuro_sys> http://www.tldp.org/HOWTO/html_single/Coffee/
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2012-04-02T10:59:41 < Thorn> I received my PCBs
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2012-04-02T13:57:20 < Laurenceb> is it possible to nest the same interrupt service routine inside itself?
2012-04-02T14:03:30 < Thorn> I think it is if you change priorities dynamically
2012-04-02T14:03:54 < Laurenceb> ah yeah of course
2012-04-02T14:03:58 < Laurenceb> youd have to do that
2012-04-02T14:04:03 < Thorn> also the stm32 in my device is alive \o/
2012-04-02T14:04:19 < Laurenceb> welcome to the world of stm32  XD
2012-04-02T14:05:47 < Thorn> thanks :)
2012-04-02T14:06:12 < Thorn> I now need to solder the leds and write a led blinking program
2012-04-02T14:07:34 < Thorn> silkscreen isn't too great this time btw
2012-04-02T14:07:54 < Thorn> (seeedstudio)
2012-04-02T14:15:40 < Laurenceb> it never is from them
2012-04-02T14:15:49 < Laurenceb> photo?
2012-04-02T14:22:12 < Thorn> will do some later
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2012-04-02T14:45:52 < Thorn> it blinks!
2012-04-02T14:46:15 < Thorn> orange and blue leds look beautiful together
2012-04-02T14:46:44 < Thorn> why the hell did I putt one of the leds on a different port?
2012-04-02T14:49:59 < Laurenceb> blinkenlits
2012-04-02T14:50:11 < Laurenceb> its like arduino all over again
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2012-04-02T15:18:14 < Thorn> lol
2012-04-02T15:18:27 < Thorn> one mistake saved me from the consequences of another
2012-04-02T15:18:42 < Laurenceb> http://www.bbc.co.uk/news/uk-northern-ireland-17582542
2012-04-02T15:20:08 < Laurenceb> lolling
2012-04-02T15:31:36 <+izua> well someone could have just stolen his stick to troll him
2012-04-02T15:32:11 <+izua> but if i were to do that, at least i'd photoshop his face on the pics
2012-04-02T15:48:56 < dongs> Laurenceb: beap in another channel
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2012-04-02T16:18:53 < Thorn> my pcbs http://i.imgur.com/x9JWP.jpg (photo quality is not the best unfortunately)
2012-04-02T16:19:55 < Thorn> can't really see the silkscreen
2012-04-02T16:20:34 < Laurenceb> need some flux cleaner
2012-04-02T16:21:13 < Thorn> sure, after the assembly is complete :)
2012-04-02T16:21:26 < Laurenceb> wazzit do?
2012-04-02T16:22:36 < Thorn> no idea
2012-04-02T16:23:33 < Thorn> I originally planned it to have rs-485 and can, but in the end it became a "put everything you can fit" project
2012-04-02T16:25:35 < Thorn> my first seeedstudio boards had much better silkscreen, smooth lines and readable refdes unlike these
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2012-04-02T16:35:55 < Thorn> I'll need to do 2 or better yet 3 of these to be able to form a network x_x
2012-04-02T16:39:35 < zyp> oh, there's the boards with the weird power routing
2012-04-02T16:41:32 < Laurenceb> lol
2012-04-02T16:41:57 < Thorn> you mean stm32f4discovery? :P
2012-04-02T16:42:52 < zyp> no, I mean your board
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2012-04-02T16:51:31 < dongs> damn dude
2012-04-02T16:51:35 < dongs> your soldering is almost as good as tom
2012-04-02T16:51:55 < dongs> http://static.rcgroups.net/forums/attachments/3/2/4/0/5/7/a4718694-84-DSCN7497.jpg < tom
2012-04-02T16:52:34 < Thorn> just clean the flux and it will look okay
2012-04-02T16:52:42 < dongs> i dont think so
2012-04-02T16:52:55 < Laurenceb> lol
2012-04-02T16:53:11 < dongs> so what is that thing you pasted
2012-04-02T16:53:17 < dongs> i see a wild mix of dip and smt stuff
2012-04-02T16:53:17 < Laurenceb> soldering obsessive
2012-04-02T16:53:40 < Laurenceb> oh my god what was that
2012-04-02T16:53:43 < zyp> dongs, I don't really get what people do to make it look like that
2012-04-02T16:53:48 < Laurenceb> oh the thing from rcgroups
2012-04-02T16:54:00 < dongs> that guy has been failing at that shit for almost 2 years nwo
2012-04-02T16:54:06 < dongs> i think even a monkey could be taught to solder better
2012-04-02T16:54:08 < dongs> in 2 fucking yearsa.
2012-04-02T16:54:33 < zyp> are people using some ridiculous amounts of some weird flux or something?
2012-04-02T16:54:59 < dongs> Thorn: wat is it!! omg
2012-04-02T16:55:00 < zyp> I was thinking the same about Thorn's pic, what's the brown stuff?
2012-04-02T16:55:23 < Laurenceb> shit
2012-04-02T16:55:29 < dongs> keke
2012-04-02T16:56:23 < Thorn> dongs: there's no dip there
2012-04-02T16:56:29 < dongs> http://i.imgur.com/qu5in.jpg feerimu is alive
2012-04-02T16:57:03 < Laurenceb> what sensors?
2012-04-02T16:57:09 < dongs> 6gay+mag
2012-04-02T16:57:16 < dongs> the small pcb in top right
2012-04-02T16:57:37 < dongs> just (ab)using a random f1 board as i2c interface
2012-04-02T16:57:47 < Laurenceb> cool
2012-04-02T16:58:35 < dongs> http://i.imgur.com/svvtd.jpg
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2012-04-02T17:29:00 < Thorn> zyp: it's rosin residue
2012-04-02T17:29:27 < zyp> why do you even put rosin on the board?
2012-04-02T17:30:02 < Thorn> dunno, old habits maybe
2012-04-02T17:30:21 < Thorn> but it dissolves completely in ispropyl alchohol
2012-04-02T17:32:18 < Thorn> well, in order to solder a qfp you do need flux, no? any flux in the solder wire is going to evaporate too early
2012-04-02T17:33:01 < zyp> nah
2012-04-02T17:47:24 < Laurenceb> whats the return type of an interrupt service routine?
2012-04-02T17:47:34 < dongs> .. void
2012-04-02T17:47:44 < Laurenceb> so how do i return?
2012-04-02T17:47:49 < dongs> you dont?
2012-04-02T17:47:51 < Laurenceb> return void;
2012-04-02T17:47:52 < dongs> return;
2012-04-02T17:47:54 < dongs> no...
2012-04-02T17:47:56 < dongs> just return? duh
2012-04-02T17:47:56 < Laurenceb> doesnt compile
2012-04-02T17:48:00 < dongs> of course it doe
2012-04-02T17:48:00 < Laurenceb> oh
2012-04-02T17:48:01 < dongs> s
2012-04-02T17:48:40 < Laurenceb> hmm hardfaults
2012-04-02T17:48:51 < dongs> ur doing it wrong clearly
2012-04-02T17:51:18 < dongs> so
2012-04-02T17:51:23 < dongs> decent-ish angle data at 200hz
2012-04-02T17:51:26 < Laurenceb> how do i set a breakpoint in a file with gdb?
2012-04-02T17:51:29 < Laurenceb> cool
2012-04-02T17:51:40 < Laurenceb> as quaternions?
2012-04-02T17:51:48 < dongs> as whatevers, yes
2012-04-02T17:51:53 < dongs> converting them to roll/pitch though.
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2012-04-02T18:00:55 < karlp> Laurenceb: break file.c:linenumber ?
2012-04-02T18:01:15 < Laurenceb> got it now thanks
2012-04-02T18:10:19 < Laurenceb> http://pastebin.com/90uZBFgM
2012-04-02T18:10:20 < Laurenceb> wut
2012-04-02T18:12:33 < Laurenceb> i fed it NULL as a data point, is that bad?
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2012-04-02T19:12:59 <+Steffanx> nu
2012-04-02T19:14:03 < zyp> god dag
2012-04-02T19:14:53 <+Steffanx> Goedendag zyp :)
2012-04-02T19:22:44 < Laurenceb> http://pastebin.com/Ush5fkm5
2012-04-02T19:22:46 < Laurenceb> wtf
2012-04-02T19:23:21 < Laurenceb> how can it just wake up and start up where it left off
2012-04-02T19:23:37 < Laurenceb> its supposed to behave like power on reset
2012-04-02T19:24:02 < zyp> what is?
2012-04-02T19:25:42 < zyp> aren't deep sleep states prevented when you are debugging, or something like that?
2012-04-02T19:26:18 < Laurenceb> oh
2012-04-02T19:26:40 <+Steffanx> It wasn't when i tried functions like that on my stm32vl discovery
2012-04-02T19:26:48 <+Steffanx> The debugger got disconnected
2012-04-02T19:27:15 < zyp> is this F1 or F4?
2012-04-02T19:28:55 < Laurenceb> F1
2012-04-02T19:28:56 < zyp> you might want to check the contents of DEBUGMCU_CR
2012-04-02T19:29:03 < Laurenceb> yeah its the same without debugger
2012-04-02T19:29:18 < zyp> oh
2012-04-02T19:30:30 < zyp> you aren't by chance calling this from an ISR?
2012-04-02T19:30:54 < Laurenceb> no
2012-04-02T19:31:25 < Laurenceb> oh wait
2012-04-02T19:31:27 < Laurenceb> wtf
2012-04-02T19:31:41 < Laurenceb> ok it seems to have changes since i updated texane
2012-04-02T19:31:48 < Laurenceb> *changed
2012-04-02T19:32:18 < Laurenceb> seems to refuse to go into sleep mode over swd
2012-04-02T19:33:23 <+Steffanx> How is that fancy project of you going?
2012-04-02T19:33:31 <+Steffanx> That measurement device
2012-04-02T19:33:41 < Laurenceb> working on it now
2012-04-02T19:33:42 <+Steffanx> on your head
2012-04-02T19:33:43 < zyp> hmm, even with DBG_STANDBY enabled it should reset after «waking up» from standby
2012-04-02T19:33:46 < Laurenceb> ok...
2012-04-02T19:34:05 < Laurenceb> now with SWD it will go it sleep from within an isr
2012-04-02T19:34:09 < zyp> so you're probably not entering sleep correctly
2012-04-02T19:34:10 < Laurenceb> but not from outside one
2012-04-02T19:34:24 < Laurenceb> githubbing
2012-04-02T19:35:20 < Laurenceb> stm32-logger on my github
2012-04-02T19:35:43 < Laurenceb> main.c line 69
2012-04-02T19:36:06 <+Steffanx> your gh?
2012-04-02T19:38:31 < Laurenceb> wut
2012-04-02T19:38:40 < Laurenceb> why no links on github
2012-04-02T19:38:46 < Laurenceb> they javascriptified it
2012-04-02T19:39:33 <+Steffanx> Don't you love it?
2012-04-02T19:39:41 <+Steffanx> Here Chrome crashes on githun
2012-04-02T19:39:42 <+Steffanx> b
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2012-04-02T19:40:17 < Laurenceb> flash player.. wtf
2012-04-02T19:40:29 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/
2012-04-02T19:41:01 < Laurenceb> https://raw.github.com/Laurenceb/STM32-Logger/master/pwr.c
2012-04-02T19:41:15 < Laurenceb> i just call the shutdown
2012-04-02T19:41:55 < Laurenceb> and from outside an isr with swd connected it just continues running
2012-04-02T19:42:08 < zyp> I have no idea what those functions do
2012-04-02T19:42:12 < zyp> do you?
2012-04-02T19:42:22 < Laurenceb> no lol
2012-04-02T19:42:33 <+Steffanx> stm32 lib shit :)
2012-04-02T19:42:41 < zyp> then I suggest you check that and look it up in the reference manual
2012-04-02T19:42:41 < Laurenceb> was hoping someone had used them
2012-04-02T19:42:44 < Laurenceb> heh
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2012-04-02T19:43:08 <+Steffanx> I tried, but it disconnected the debugger all the time
2012-04-02T19:43:11 <+Steffanx> so i removed them :)
2012-04-02T19:43:25 < Laurenceb> yeah same here
2012-04-02T19:43:30 < Laurenceb> but not any more.. odd
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2012-04-02T19:43:46 < zyp> you have to set DBG_STANDBY in DEGUBMCU_CR to keep it alive for the debugger
2012-04-02T19:43:56 < Laurenceb> ok, i dont do that
2012-04-02T19:44:06 < Laurenceb> maybe texane is fiddling with something
2012-04-02T19:44:08 < zyp> well, maybe the debugger now does.
2012-04-02T19:44:10 <+Steffanx> I'm pretty sure i tried that
2012-04-02T19:44:12 < Laurenceb> as ive updated texane
2012-04-02T19:45:08 < zyp> oh, speaking of debuggers, have anybody tried the blackmagic debug probe?
2012-04-02T19:45:23 <+Steffanx> The what?
2012-04-02T19:45:36 < zyp> I ordered one the other day
2012-04-02T19:45:41 < zyp> http://www.blacksphere.co.nz/main/blackmagic
2012-04-02T19:45:45 <+Steffanx> More crap :P
2012-04-02T19:45:50 < zyp> probably
2012-04-02T19:47:32 < karlp> Laurenceb: I did see someone add a patch to do something related to "still working after standby"
2012-04-02T19:47:34 < zyp> I like that it runs the entire gdbserver on the dongle itself, so you don't have to dick around with other software
2012-04-02T19:47:42 <+Steffanx> karlp is back alive?
2012-04-02T19:47:54 < karlp> got back late saturday
2012-04-02T19:48:14 < karlp> I haven't been using standby though, so no idea whether it's a) right, or b) what's expected for all people or just some people.
2012-04-02T19:48:16 <+Steffanx> I failed btw
2012-04-02T19:48:30 < karlp> with things like debugging in suspend, I expect some people will have very different expectations.
2012-04-02T19:48:37 <+Steffanx> I didn't work on that debug thingy
2012-04-02T19:48:39 <+Steffanx> swv
2012-04-02T19:48:39 < karlp> failed at what?
2012-04-02T19:49:05 < karlp> what were you going to do again? try and get some swv printf debug code to work, and see what came out the other usb endpoint?
2012-04-02T19:49:23 <+Steffanx> Yeah, I know the protocol, but i didn't implement it
2012-04-02T19:49:33 < Laurenceb> karlp: interesting
2012-04-02T19:49:52 < Laurenceb> i dont know why it still goes to standby from isr tho
2012-04-02T19:50:09 < karlp> Laurenceb: I thought it was a few months ago though, did you only just update for teh first time in a while?
2012-04-02T19:50:20 < Laurenceb> yesa
2012-04-02T19:50:34 < Laurenceb> i got one of the first versions before chirstmas
2012-04-02T19:50:43 < Laurenceb> then updated a couple of weeks ago
2012-04-02T19:50:53 < karlp> I don't have internet at home yet, and have a few other things on my plate right now, not sure when I'll be poking stlink again.
2012-04-02T19:51:05 < karlp> but I can spread lies and misinformation here again now :)
2012-04-02T19:51:08 < Laurenceb> sure, thanks for the help
2012-04-02T19:51:15 < Laurenceb> ill read the documentation etc
2012-04-02T19:51:21 < karlp> hohoho
2012-04-02T19:51:38 < Laurenceb> need to head off, cya
2012-04-02T19:53:06 <+Steffanx> Doesn't look that special zyp
2012-04-02T19:54:08 <+Steffanx> Now it's just one of the many other debuggers reimplemented
2012-04-02T19:54:44 < zyp> as long as it works :p
2012-04-02T19:57:01 < BrainDamage> I stumbled on an interesting project: http://www.gniibe.org/gitweb?p=gnuk.git;a=summary openpgp smartcard implementation over stm32 as usb client
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2012-04-02T20:49:53 < TitanMKD> hi
2012-04-02T20:54:07 <+Steffanx> Lo
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2012-04-03T14:58:22 < Laurenceb> http://pastebin.com/fzKz87K5
2012-04-03T14:58:27 < Laurenceb> does that look sane?
2012-04-03T14:58:39 < Laurenceb> im running that in systick
2012-04-03T14:59:16 < Laurenceb> so the button timer thing is set in an interrupt from button pin rising edge
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2012-04-03T14:59:43 < Laurenceb> then you can change the state by pressing button multiple times in quick sequence
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2012-04-03T15:02:07 < Tom_itx> if(Button_hold_tim<BUTTON_DEBOUNCE)
2012-04-03T15:02:13 < Tom_itx> should that be >
2012-04-03T15:02:15 < Tom_itx> ?
2012-04-03T15:02:48 < zyp> no
2012-04-03T15:03:11 < zyp> he has released the button at that point
2012-04-03T15:03:33 < Laurenceb> yeah it counts down
2012-04-03T15:03:37 < Tom_itx> it's a test of that though
2012-04-03T15:03:40 < Tom_itx> ok
2012-04-03T15:04:48 < zyp> what is the system state stuff?
2012-04-03T15:05:31 < Laurenceb> different functions
2012-04-03T15:05:35 < Laurenceb> global variable
2012-04-03T15:05:43 < Laurenceb> oh i dont need the debounce stuff
2012-04-03T15:06:01 < Laurenceb> just set Button_hold_tim to BUTTON_DEBOUNCE
2012-04-03T15:06:12 < Laurenceb> then if(Button_hold_tim)
2012-04-03T15:06:48 < Laurenceb> no wait... button hold has to turn it off
2012-04-03T15:06:51 < Laurenceb> i fail
2012-04-03T15:11:03 < Laurenceb> guess i need to try it :P need to finish rest of code
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2012-04-03T15:34:56 <+jpa-> Laurenceb: i think i finally got the button debounce stuff quite clean: https://svn.kapsi.fi/jpa/dsoquad/pawn/buttons.c
2012-04-03T15:35:55 < Laurenceb> ah using timer
2012-04-03T15:35:58 < Laurenceb> interesting
2012-04-03T15:39:12 <+jpa-> yeah just 1ms tick
2012-04-03T15:39:18 <+jpa-> could as well use systick
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2012-04-03T16:06:11 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/blob/master/interrupts.c#L208
2012-04-03T16:06:18 < Laurenceb> ok that works, slightly simpler
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2012-04-03T16:46:40 <+izua> stm32-usb-fs-device-library - that only emulates sector from whatever you have to usb msc, or it also handles fs functions?
2012-04-03T16:46:53 <+izua> ah nvm, found fat_Fs
2012-04-03T16:47:59 <+izua> do you have any opinions on other implementations of filesystems for embedded work?
2012-04-03T16:49:04 <+izua> there was also.. efsl.. if i remember it right
2012-04-03T16:50:03 <+jpa-> i like elm-chan's fatfs better than efsl
2012-04-03T16:50:44 <+izua> i never got around messing with the full implementation, just with petitfat
2012-04-03T16:50:45 <+jpa-> the efsl seems to have more features, but when i looked at it a year ago, it felt a bit unfinished
2012-04-03T16:50:58 <+izua> it has a latex documentation :P
2012-04-03T16:51:05 <+izua> +pdf
2012-04-03T16:51:12 <+jpa-> (more features = more detailed cache config, mostly)
2012-04-03T16:51:26 <+izua> that makes it pro by the "hey, i bothered to learn latex to type this" clause
2012-04-03T16:51:40 <+jpa-> ah, but everybody knows latex anyway
2012-04-03T16:51:55 <+jpa-> it just says 'I wasn't able to type neat HTML' ,)
2012-04-03T16:53:39 <+izua> formatted text is overrated
2012-04-03T16:53:55 <+izua> no one likes .txt files anymore
2012-04-03T16:55:55 <+jpa-> plain-text -readable formatted formats, like markdown and restructured text, are quite nice
2012-04-03T16:58:24 <+jpa-> http://nanopb.googlecode.com/git/docs/concepts.rst  vs.  http://koti.kapsi.fi/~jpa/nanopb/docs/concepts.html   though it is not perfectly neat plaintext
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2012-04-03T20:34:31 < TitanMKD> hi
2012-04-03T20:39:48 <+Steffanx> nu
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2012-04-03T21:37:35 < Laurenceb_> hmf
2012-04-03T21:37:49 < Laurenceb_> why do Ti make all their temp sensors with <<1lsb noise
2012-04-03T21:37:58 < Laurenceb_> now i have aliasing issues
2012-04-03T21:42:29 <+Steffanx> poor you :P
2012-04-03T21:42:43 < Laurenceb_> they made them too good
2012-04-03T21:44:20 <+Steffanx> :)
2012-04-03T21:44:51 <+Steffanx> I never heard some who said that before :P
2012-04-03T21:52:02 < Laurenceb_> looks like someone put the soundtrack to every porno ever on YT
2012-04-03T21:52:06 < Laurenceb_> www.youtube.com/watch?v=9fAyFJL8EYk
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2012-04-03T22:02:41 <+jpa-> Laurenceb: you have to add a randomly heating resistor next to the sensor
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2012-04-03T22:14:46 < Laurenceb_> heh
2012-04-03T22:15:22 < Laurenceb_> i could probably hold sda low
2012-04-03T22:15:38 <+jpa-> (apparently the first laser gyroscopes had a vibrating wheel to provide dithering)
2012-04-03T22:15:56 < Laurenceb_> yeah they have an issue with mode locking
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2012-04-03T23:01:19 < Thorn> hello
2012-04-03T23:01:53 < Thorn> I found a fail on my board, mbi5026 doesn't want to talk to a 3.3V mcu :(
2012-04-03T23:03:02 < Thorn> after a careful reading of the datasheet it's entirely allowed to act that way but it did work in a breadboard for some reason
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2012-04-03T23:25:25 < Laurenceb_> at least you dont have 200 exam papers to mark
--- Day changed Wed Apr 04 2012
2012-04-04T00:07:05 < TitanMKD> bye
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2012-04-04T00:08:30 <+Steffanx> Laurenceb_ found himself a boring job?
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2012-04-04T00:37:00 < Laurenceb_> grad student
2012-04-04T00:37:13 < Laurenceb_> im supposed to do this stuff :(
2012-04-04T00:46:51 <+Steffanx> ah, ok
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2012-04-04T10:22:11 < jon1012> hi
2012-04-04T10:22:33 < jon1012> someone knows if it's possible to use the stlink of a discovery board (stm32f4 or stm32vl) to programmer another chip ?
2012-04-04T10:28:49 < Thorn> yes, you need to remove jumpers that connect stlink to the onboard target. I think it's described in the manuals for these boards
2012-04-04T10:30:00 < jon1012> cool ! I haven't found that info yet :(
2012-04-04T10:30:04 < jon1012> thanks
2012-04-04T10:30:33 < jon1012> and another question, someone knows what is the minimum setup for an stm32f4 ? (pullups, etc)
2012-04-04T10:32:41 < Thorn> the datasheet knows everything
2012-04-04T10:33:11 < jon1012> yeah, but there is no summary, and I tried to read everything relevant to that but I may always miss some parts
2012-04-04T10:33:44 < Thorn> also see stm32f4discovery schematics, although it's rather overcomplicated
2012-04-04T10:35:02 < Thorn> I imagine that an absolute minimum setup would be decoupling caps, Vcap1/Vcap2 caps and BOOT0 to ground
2012-04-04T10:35:12 < jon1012> thanks
2012-04-04T10:35:23 < Thorn> if you don't need to program the chip that is :)
2012-04-04T10:35:27 < jon1012> ah
2012-04-04T10:35:35 < jon1012> and if I need to program it ? :)
2012-04-04T10:36:04 < Thorn> well, and nRST high
2012-04-04T10:37:20 < Thorn> then you need a jtag/swd port and/or usart (or USB or CAN) for the bootloader
2012-04-04T10:38:06 < jon1012> I can't program it using the stlink from the discovery boad ?
2012-04-04T10:38:16 < jon1012> or the stlink needs a bootloader ?
2012-04-04T10:38:29 < Thorn> stlink is a SWD adapter
2012-04-04T10:38:58 < Thorn> it doesn't use bootloaders
2012-04-04T10:39:07 < jon1012> (sorry I did a lot of 8/16 bit mcu dev but I'm a newbie in stm32/arm dev :))
2012-04-04T10:40:59 < jon1012> ok, so I can use it, cool
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2012-04-04T17:43:30 < zyp> 09:36:04 < Thorn> well, and nRST high
2012-04-04T17:43:39 < zyp> nrst has internal pullup, so you don't need that
2012-04-04T17:44:10 < zyp> (I omitted it on my latest board and it's working fine)
2012-04-04T17:44:39 < jon1012> oh ok
2012-04-04T17:44:42 < jon1012> nice !
2012-04-04T17:46:58 <+jpa-> just remember that a board without debug led is a board that will never work :P
2012-04-04T17:50:02 < zyp> I only have a power, a status and an error led on mine :p
2012-04-04T17:50:19 <+izua_> error?
2012-04-04T17:50:34 <+izua_> leds are all sorts of awesome
2012-04-04T17:50:34 < zyp> yes, it's red
2012-04-04T17:50:56 <+izua_> that's ahttp://www.merl.com/papers/docs/TR2003-35.pdf
2012-04-04T17:50:58 <+izua_> http://www.merl.com/papers/docs/TR2003-35.pdf
2012-04-04T17:50:59 < zyp> http://bin.jvnv.net/f/sTW8U.JPG <- and they are SUPER BRIGHT
2012-04-04T17:51:01 <+izua_> that's a red led
2012-04-04T17:51:06 <+izua_> not an error led :P
2012-04-04T17:51:15 < zyp> but it's named error
2012-04-04T17:51:18 <+izua_> paper describing some guy using led as receivers and senders
2012-04-04T17:51:32 <+izua_> close contact, but you know.. for the cost of two leds
2012-04-04T17:51:37 < zyp> using leds as phototransistors? I've read that
2012-04-04T17:51:52 < zyp> read about that*
2012-04-04T17:52:18 <+izua_> yep
2012-04-04T17:52:34 <+izua_> there was even this movie around with a guy who made one of the 8x8 led matrices as a touchscreen of sorts
2012-04-04T17:52:53 < zyp> I remember thinking about doing that myself
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2012-04-04T17:59:11 < tavish> can someone give me startup code and a linker script which would work with codeSourcery and also cmsis and stm32f10x peripheral library?
2012-04-04T18:00:19 <+jpa-> IIRC the peripheral library doesn't need anything special
2012-04-04T18:01:05 <+jpa-> here is my startup code, but it is maybe not the best example out there  https://svn.kapsi.fi/jpa/paatti/stm32.ld  https://svn.kapsi.fi/jpa/paatti/interrupt_vectors.c
2012-04-04T18:03:36 < tavish> jpa-: thanks! i'll try these
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2012-04-04T18:06:22 < ureif> zyp: in the image you  posted, what is that thing at the bottom of the PCB, below the 8MHz crystal ?
2012-04-04T18:07:49 < zyp> gps module
2012-04-04T18:07:59 < zyp> ublox based antenova something
2012-04-04T18:09:48 <+jpa-> zyp, izua_: Laurenceb is making a spectrometer using leds with different colors :)
2012-04-04T18:09:57 < _abc_> izua_: I think that some energy meters use that kind of led optical coupling
2012-04-04T18:10:04 < Thorn> ok who told me that 10K is a good value for i2c pullups
2012-04-04T18:10:17 <+izua_> _abc_: actually, the ones from enel use a very simple system
2012-04-04T18:10:20 < _abc_> Thorn: it is good for slow I2C
2012-04-04T18:10:21 <+izua_> 1 blink per kw
2012-04-04T18:10:29 < _abc_> izua_: I mean the repartitoare
2012-04-04T18:11:01 <+izua_> ah, yeah
2012-04-04T18:11:47 <+izua_> 'heat cost allocators'
2012-04-04T18:11:56 <+izua_> that's the term, i think
2012-04-04T18:12:16 < Thorn> the rising edges are all crappy and it's at 100KHz
2012-04-04T18:13:13 < Thorn> and judging by the fact that it stops working when I touch scl or sda with a scope probe while it's running there is no noise margin
2012-04-04T18:16:57 <+jpa-> is it a long line?
2012-04-04T18:17:29 < Thorn> ~5cm max pcb traces
2012-04-04T18:17:33 <+jpa-> that sounds like >100pF capacitance on the line, which is somewhat much
2012-04-04T18:17:37 < zyp> Thorn, with 10k? sounds weird
2012-04-04T18:17:41 < Thorn> 2 chips, one isn't even installed yet
2012-04-04T18:18:11 < Thorn> I'll try to upload a waveform in half an hour or so
2012-04-04T18:18:46 < Thorn> (I mean 2 slaves)
2012-04-04T18:41:03 < tavish> jpa-: thanks a lot! got some simple code to work. though i still dont fully understand why it works now
2012-04-04T18:41:24 <+jpa-> well atleast it is a start :)
2012-04-04T18:46:58 < _abc_> Thorn: 'slow I2C' means MUCH slower than 100kHz
2012-04-04T18:47:18 < _abc_> Thorn: for 100kHz you need 2kohms or so pullup, and even less depending on wire length and number of slaves
2012-04-04T18:47:38 < _abc_> Thorn: also use 1:10 scope probe
2012-04-04T18:49:13 < Thorn> that's what I wanted to use originally, 2.2K
2012-04-04T18:52:40 < _abc_> nxp app notes are the bible on i2c
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2012-04-04T19:17:56 < jon1012> jpa-, why a board without a debug led won't work ?
2012-04-04T19:18:09 < jon1012> jpa-, it's mandatory on stm32 ?
2012-04-04T19:19:07 <+jpa-> jon1012: heh, no; just that when it doesn't boot, you want something very simple to verify whether it is doing anything at all :)
2012-04-04T19:19:19 < jon1012> hehe
2012-04-04T19:19:26 < jon1012> jpa-, where do you typically put that led ?
2012-04-04T19:19:37 < jon1012> jpa-, on which pin ?
2012-04-04T19:19:47 <+jpa-> anywhere where there is unused space :P
2012-04-04T19:20:05 <+jpa-> and unused pin
2012-04-04T19:20:19 < jon1012> hehe ok
2012-04-04T19:23:38 < _abc_> Heh I remember screwing my brains to find a way to multiplex some more pins on a tiny pic in the 1990s, now there are so many unused IO pins that one simply ignores them :)
2012-04-04T19:28:05 < jon1012> _abc_, it's still common for people who do 8 or 16bit dev...
2012-04-04T19:28:37 < jon1012> _abc_, look at arduino... multiplexers and shift registers are all the rage there :)
2012-04-04T19:29:13  * _abc_ works with avr and pic all the time. no arduino
2012-04-04T19:29:23 <+jpa-> i ended up spending all the IO pins on one of my boards.. but after all i chose the processor before counting how many pins i need :)
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2012-04-04T20:48:51 < Thorn> finally got ultrascope to work, my waveforms http://imgur.com/a/AquHt
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2012-04-04T21:37:44 <+Steffanx> nu
2012-04-04T21:40:41 < TitanMKD> hehe I have bougth the Ti ez430Watch for 24.50us$ ;)
2012-04-04T21:41:03 < TitanMKD> see the special offer here http://tideals.com/
2012-04-04T21:41:39 <+Steffanx> A watch..
2012-04-04T21:41:50 -!- Tom_L [~Tom@ip24-255-188-203.ks.ks.cox.net] has joined ##stm32
2012-04-04T21:41:51 < TitanMKD> yes with openb software ;)
2012-04-04T21:41:56 < TitanMKD> and wireless ...
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2012-04-04T21:42:27 < Thorn> wake me up when they offer ezdsp for that price
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2012-04-04T21:48:05 <+Steffanx> ok ok Thorn
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2012-04-04T22:11:28 < jon1012> hi
2012-04-04T22:11:36 < jon1012> has someone tessted to use w5100 with stm32 ?
2012-04-04T22:11:41 < jon1012> (with a module like wiz812)
2012-04-04T22:12:01 < jon1012> or is there a better way to get ethernet on the stm32f4 discovery board ?
2012-04-04T22:14:06 <+jpa-> doesn't the STM32F4 have builtin ethernet? (not sure about the controller on the discovery board)
2012-04-04T22:14:21 <+Steffanx> You need a phy
2012-04-04T22:14:46 < Thorn> I think ethernet MAC is only in f41x?
2012-04-04T22:14:59 <+Steffanx> the 407 too iirc
2012-04-04T22:15:07 <+Steffanx> the one on the stm32f4 discovery
2012-04-04T22:15:43 <+Steffanx> Yes, i'm right :)
2012-04-04T22:16:47 <+jpa-> it may actually be easier to find good-quality software for W5100 than the STM32F4's own MAC
2012-04-04T22:17:28 <+Steffanx> or not .. stm32 has a example with the lwip stack
2012-04-04T22:17:52 <+jpa-> ah, nice
2012-04-04T22:17:57 < jon1012> but, how to use it on the discovery board then ? (the stm32f4 mac)
2012-04-04T22:18:03 <+jpa-> so it's not as crappy as the situation with usb :)
2012-04-04T22:18:19 <+Steffanx> You need a 'ethernet phy' jon1012
2012-04-04T22:18:40 < jon1012> ok
2012-04-04T22:18:40 <+jpa-> http://www.olimex.com/dev/stm32-p407.html  this board has ethernet connector & schematics available
2012-04-04T22:18:58 <+Steffanx> "LwIP TCP/IP stack demonstration for STM32F4x7 microcontrollers"
2012-04-04T22:19:07 <+Steffanx> http://www.st.com/internet/com/SOFTWARE_RESOURCES/SW_COMPONENT/FIRMWARE/stm32f4x7_eth_lwip.zip
2012-04-04T22:19:43 <+Steffanx> That board isn't even that expensive
2012-04-04T22:21:13 <+Steffanx> stm32 even has a "in-application programming (IAP) over Ethernet based on LwIP TCP/IP stack" exampl
2012-04-04T22:21:18 <+Steffanx> e
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2012-04-04T22:40:18 <+jpa-> hmm.. i wonder if stm32l151 lacks something that stm32f100 has
2012-04-04T22:40:29 <+jpa-> besides the advanced control timer
2012-04-04T22:41:00 <+Steffanx> stm32l ?
2012-04-04T22:41:10 <+Steffanx> oh, yes
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2012-04-04T22:43:00 < Thorn> I think this adc noise is trying to talk to me
2012-04-04T22:43:05 < Thorn> it's anything but random
2012-04-04T22:43:22 <+Steffanx> Aliens!
2012-04-04T22:44:08 < Thorn> and it changes with time. an hour ago it had regular peaks, now it doesn't
2012-04-04T22:44:33 <+Steffanx> You turn on/off some lights? :)
2012-04-04T22:45:35 < Thorn> if anything I turned on my scope in the meantime
2012-04-04T22:46:10 < Thorn> but I think I did that much earlier actually
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2012-04-04T22:53:03 < Thorn> for those who thinks Dave Jones is bad http://www.youtube.com/watch?v=UDfR6GVFFSc
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2012-04-04T22:54:34 <+Steffanx> I can actually listen to that guy for more that 10 seconds Thorn ..
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2012-04-04T22:58:15 < BrainDamage> I should write a pitch shifter algo and proceed to sell to dave fans
2012-04-04T22:58:41 <+Steffanx> :D
2012-04-04T23:03:57 <+Steffanx> How can you be a fan of him BrainDamage ?
2012-04-04T23:04:12 < BrainDamage> who said I am?
2012-04-04T23:04:26 < BrainDamage> I am just seeing a business opportunity
2012-04-04T23:04:43 <+Steffanx> I didn't mean you, but people in general
2012-04-04T23:05:27 < BrainDamage> I really don't like his style, I tried watching few videos, even if I can tollerate the squeak, the content was too diluited and not very new to me
2012-04-04T23:05:41 <+Steffanx> :)
2012-04-04T23:06:27 < BrainDamage> also, I tend to hate videos, I prefer text to gather infos, I can search, skim more easily, etc
2012-04-04T23:12:50 <+Steffanx> i dont
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2012-04-04T23:16:42 <+Steffanx> nu
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--- Day changed Thu Apr 05 2012
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2012-04-05T00:53:41 < Laurenceb_> is there a maple arduino channel?
2012-04-05T01:17:47 < Laurenceb_> hmm looks like no
2012-04-05T01:17:59 < Laurenceb_> i want to get the uSD card working on olimexino
2012-04-05T01:18:08 < Laurenceb_> like.. really easily :P
2012-04-05T01:18:15 < Laurenceb_> looks like thats not possible
2012-04-05T01:18:32 <+Steffanx> use spi?
2012-04-05T01:19:09 < Laurenceb_> yeah
2012-04-05T01:19:21 < Laurenceb_> i think - need to look at the schematic
2012-04-05T01:19:41 < Laurenceb_> i was hoping itd be like arduino - grab a couple of lines of code and it works
2012-04-05T01:19:54 < Laurenceb_> unfortunately its just a glorified stm32 breakout board it seems
2012-04-05T01:20:00 < Laurenceb_> oh well  -> zzzz
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2012-04-05T02:02:23 < TitanMKD> bye
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2012-04-05T10:58:48 < dongs> Laurenceb: loll @ glorified stm32 breakout board.
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2012-04-05T14:08:33 < Thorn> "Real MCU GPIOs — all can generate interrupts, are 5V-tolerant, and have programmable drive strength and slew rate control."
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2012-04-05T17:34:17 < jon1012> someone yesterday told me to keep boot0 to ground as a minimum
2012-04-05T17:34:31 < jon1012> but in the stm32f4 discovery datasheet they put it to vdd
2012-04-05T17:34:34 < jon1012> is there a ready ?
2012-04-05T17:34:38 < jon1012> a reason*
2012-04-05T17:36:21 <+jpa-> jon1012: they have a pull-up to VDD and a solder-bridge to GND
2012-04-05T17:36:36 < jon1012> yeah
2012-04-05T17:36:54 <+jpa-> could just as well have pull-down to GND and solder-bridge to VDD; not sure why they did it that way around
2012-04-05T17:37:07 < jon1012> the soldrbridge means it's not active, right ?
2012-04-05T17:37:10 < jon1012> solderbridge*
2012-04-05T17:37:27 < jon1012> it's only active if you put solder on it
2012-04-05T17:37:52 <+jpa-> well atleast the STM32 value line discovery board has that solder bridge soldered by default
2012-04-05T17:38:04 < jon1012> arg ok
2012-04-05T17:38:11 < jon1012> so to majke a correct board what is the way to go ?
2012-04-05T17:38:22 < jon1012> pull up or pull down on boot0 and boot1 ?
2012-04-05T17:38:32 < jon1012> (I want my board to go to 168mhz with a 8mhz crystal)
2012-04-05T17:38:53 <+jpa-> you need to pull down to boot the application
2012-04-05T17:38:56 < jon1012> ok
2012-04-05T17:40:16 < jon1012> also on boot0 ?
2012-04-05T17:40:24 < jon1012> also on boot1 I mean ?
2012-04-05T17:40:37 <+jpa-> IIRC yeah, but check the datasheet
2012-04-05T17:41:05 < jon1012> ok, thanks
2012-04-05T17:55:42 < zyp> both low boots from normal flash
2012-04-05T17:56:56 < zyp> STM32 always boot on internal oscillator, and then your startup code enables the external oscillator, sets the PLL multiplier and switches to PLL as system clock
2012-04-05T17:58:59 <+jpa-> or hangs indefinitely waiting for PLL to lock :)
2012-04-05T18:00:09 < zyp> kind of like mine
2012-04-05T18:00:31 < zyp> I had a bug in my F1 startup code
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2012-04-05T18:01:29 < zyp> instead of waiting for HSE to be ready, it waits for HSE to be non-ready
2012-04-05T18:02:26 < zyp> in most cases it continues immediately, since HSE is not ready, but after soft-resets HSE can be ready immediately, and then it hangs
2012-04-05T18:07:52 < jon1012> (I am trying to make a board for stm32f4 in a diy way for a prototype, before going into production)
2012-04-05T18:08:30 < jon1012> (well, production... all is relative :) I mean sending the board to be made)
2012-04-05T18:09:34 < zyp> for what purpose?
2012-04-05T18:09:45 < zyp> what do you want to test with your diy board?
2012-04-05T18:10:00 < jon1012> my stuff works on a stm32f4 discovery board
2012-04-05T18:10:08 < jon1012> I want to try to run it on my own board
2012-04-05T18:10:21 < jon1012> and if it works I make the board at pcb cart
2012-04-05T18:10:37 < jon1012> but I want to erify my schematics and all are good
2012-04-05T18:10:40 < jon1012> verify*
2012-04-05T18:10:46 < zyp> sounds like a waste of time
2012-04-05T18:11:10 <+jpa-> PCB's aren't that expensive
2012-04-05T18:11:34 < zyp> exactly
2012-04-05T18:11:35 < jon1012> also I need a version working for next week and all pcb houses are too slow on that or too expensive for short runs
2012-04-05T18:11:36 <+jpa-> and desoldering TQFP without damaging the processor is a bit tricky
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2012-04-05T18:11:47 <+jpa-> ah; that is a better reason :)
2012-04-05T18:11:48 < zyp> jon1012, that's a better point
2012-04-05T18:12:27 < jon1012> anyway, once I have something working I'll release the schematic and board files for a bare bone stm32f4 board
2012-04-05T18:13:20 < zyp> a barebone F4 board is the chip itself and a couple of decoupling caps
2012-04-05T18:13:53 < zyp> exact number depends on which package you chose, rule of thumb is one per vcc pin
2012-04-05T18:13:56 < jon1012> from what I see, it's vcaps, decoupling caps, a crystal, two caps on it, some resistors
2012-04-05T18:13:56 < jon1012> etc
2012-04-05T18:14:10 < zyp> ah, the vcaps aswell
2012-04-05T18:14:23 < zyp> crystal is optional
2012-04-05T18:14:29 < zyp> and no resistors are really needed
2012-04-05T18:14:34 < jon1012> yeah but if you want to run at full speed you need it
2012-04-05T18:14:44 < jon1012> zyp, not even on boot or reset ?
2012-04-05T18:15:09 <+jpa-> having a reset button is quite important if you want to use st-link under linux to program it :P
2012-04-05T18:15:22 < jon1012> hehe
2012-04-05T18:15:22 < zyp> jon1012, no
2012-04-05T18:15:28 < zyp> jpa-, really?
2012-04-05T18:15:46 < zyp> I don't have neither a reset button nor a pullup on reset on my board
2012-04-05T18:15:53 < zyp> and I can program it just fine with st-link
2012-04-05T18:16:02 <+jpa-> zyp: well i don't know the current situation.. maybe the bug has been fixed
2012-04-05T18:16:13 <+jpa-> previously you had to press reset manually sometimes when it hangs up
2012-04-05T18:16:22 < zyp> me neither, but it works for me
2012-04-05T18:16:48 < zyp> either way, the discovery board already have a reset button
2012-04-05T18:17:18 < zyp> reset button on discovery board is always wired in even when you use the swd port for external chips
2012-04-05T18:17:50 < zyp> and resistors on boot pins are only needed if you want to be able to pull them in the other direction later
2012-04-05T18:18:07 < zyp> I just hardwired both mine low, since I'm not interested in booting from anything else than flash
2012-04-05T18:18:22 < jon1012> http://img833.imageshack.us/img833/2263/barebonestm32f4.png
2012-04-05T18:20:18 < zyp> http://bin.jvnv.net/f/Kgy4D.png
2012-04-05T18:24:06 < jon1012> zyp, the swd from the discovery has just 6 pins and yours 7
2012-04-05T18:24:11 < jon1012> zyp, what is the difference ?
2012-04-05T18:24:32 <+Steffanx> He uses jtag
2012-04-05T18:24:33 < zyp> mine is full jtag
2012-04-05T18:24:40 < jon1012> ok
2012-04-05T18:24:41 < zyp> swd uses a subset of jtag pins
2012-04-05T18:24:53 < jon1012> what pins should I connect to progrm using swd ?
2012-04-05T18:24:57 < jon1012> program*
2012-04-05T18:25:07 <+jpa-> gnd, swdio, swclk
2012-04-05T18:25:15 < jon1012> not more ?
2012-04-05T18:25:16 <+Steffanx> Reset could be nice too?
2012-04-05T18:25:27 < zyp> reset is pretty much required
2012-04-05T18:25:34 < jon1012> and swo ?
2012-04-05T18:25:37 <+Steffanx> no
2012-04-05T18:25:40 <+jpa-> hmm.. on stm32f1 reset is not needed..
2012-04-05T18:26:14 <+jpa-> dunno about stm32f4
2012-04-05T18:30:38 < jon1012> thanks :)
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2012-04-05T18:45:37 < Laurenceb> my pwm is breaking :(
2012-04-05T18:45:53 < Laurenceb> i get about 500ms of pwm then it just goes high
2012-04-05T18:46:36 < Laurenceb> this is seriously weird
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2012-04-05T18:49:52 < Laurenceb> hmm think i might have fried it :(
2012-04-05T18:50:09 < Laurenceb> i was exceeding max current.. slightly
2012-04-05T18:51:10 < Laurenceb> about 29ma
2012-04-05T18:51:29 <+jpa-> sounds like a strange failure mode
2012-04-05T18:51:36 < Laurenceb> hmm
2012-04-05T18:51:37 <+jpa-> does the pin work if it is not doing PWM?
2012-04-05T18:51:44 < Laurenceb> seems to
2012-04-05T18:51:57 < Laurenceb> it runs for ~500ms then goes to ~2.9v
2012-04-05T18:52:03 < Laurenceb> vcc is 3.3
2012-04-05T18:52:30 < Laurenceb> no wait.. 1.38seconds
2012-04-05T18:53:21 < Laurenceb> hmm
2012-04-05T18:53:38 < Laurenceb> seems timer3 is failing, and it corresponds to when timer3 is adjusted
2012-04-05T18:53:45 < Laurenceb> *timer1 is adjusted
2012-04-05T18:59:54 < Laurenceb> happens with no load
2012-04-05T18:59:57 < Laurenceb> but 3.3v
2012-04-05T19:01:20 < Laurenceb> wtf.. its triggered by the other timer running - timer1
2012-04-05T19:01:38 <+jpa-> maybe you have the slave/master registers set up for syncing :)
2012-04-05T19:02:30 < Laurenceb> oh
2012-04-05T19:02:49 < Laurenceb> do those exist for timers1 and 8 only?
2012-04-05T19:03:06 <+jpa-> for all timers IIRC
2012-04-05T19:03:10 < Laurenceb> hmm
2012-04-05T19:03:25 <+jpa-> but by default they should be disabled
2012-04-05T19:03:55 < Laurenceb> i dont know
2012-04-05T19:04:21 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/blob/master/timer.c
2012-04-05T19:04:57 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/blob/master/timer.h#L17
2012-04-05T19:05:14 < Laurenceb> ^as soon at that is called timer3 breaks - output is stuck high
2012-04-05T19:06:39 <+jpa-> Laurenceb: you might want to do TIM_TimeBaseInitTypeDef  TIM_TimeBaseStructure = {};  so that the unused members are initialized to zero instead of garbage
2012-04-05T19:06:57 < Laurenceb> oh
2012-04-05T19:07:35 < Laurenceb> that might explain why it worked intil a couple of versions ago
2012-04-05T19:11:30 < Laurenceb>   ={}; forces zeros?
2012-04-05T19:11:58 <+jpa-> yeah.. everything else in C is automatically initialized to zero except malloc() and stack variables
2012-04-05T19:12:10 <+jpa-> and = {}; forces initialization for stack variables
2012-04-05T19:13:05 < Laurenceb> ok
2012-04-05T19:13:14 < Laurenceb> im going to get some fresh air
2012-04-05T19:14:17 <+Steffanx> Good luck
2012-04-05T19:14:34 <+Steffanx> Watch out for airplanes
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2012-04-05T19:35:42 < Laurenceb> hmm no luck
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2012-04-05T19:51:38 < Laurenceb> no its utterly broken
2012-04-05T19:52:07 <+Steffanx> Your code is
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2012-04-05T20:08:41 < zyp> 18:11:58 <+jpa-> yeah.. everything else in C is automatically initialized to zero except malloc() and stack variables
2012-04-05T20:08:49 < zyp> if startup code are written to spec
2012-04-05T20:09:02 < zyp> i.e. does zero .bss
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2012-04-05T20:11:58 < Thorn> my scope apparently loads the circuit under test a whole lot, is this a known property of rigol probes?
2012-04-05T20:12:26 < Thorn> when I place second probe on the same signal it becomes visibly worse
2012-04-05T20:12:49 < Thorn> (rise/fall times increase, amplitude falls)
2012-04-05T20:13:03 < Thorn> especially if it's > a few mHz
2012-04-05T20:13:48 < Thorn> MHz
2012-04-05T20:17:01 < zyp> aren't that a common property of all cheap probes?
2012-04-05T20:19:42 < Thorn> apparently :(
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2012-04-05T20:24:01 <+Steffanx> The Rigol scopes aren't that good Thorn ..
2012-04-05T20:24:33 <+Steffanx> I read somewhere the input impedance gets pretty low at 'higher' frequencies
2012-04-05T20:29:00 < Thorn> I should start a video blog and pitch Agilent
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2012-04-05T20:43:21 < Randomskk> Thorn: are you using the x10 on the probe? (does it have one?)
2012-04-05T20:44:17 < Thorn> it does but I don't generally use it, looks like it's time to start
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2012-04-05T21:44:12 < TitanMKD> hi
2012-04-05T21:47:48 <+Steffanx> Lo
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2012-04-05T21:49:40 < Laurenceb_> hi
2012-04-05T21:49:55 < Laurenceb_> karlp/anyone who knows about SWD: ping
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2012-04-05T22:05:12 < Laurenceb_> hi, can anyone help with with SWD?
2012-04-05T22:05:32 < Laurenceb_> i seem to always be in __cs_preinit
2012-04-05T22:05:42 < Laurenceb_> only my code seems to be running ok
2012-04-05T22:05:58 < Laurenceb_> its just that if i break in gdb it always says im there
2012-04-05T22:06:10 < Laurenceb_> and the PC address is the same
2012-04-05T22:08:06 < Laurenceb_> my wifi is also broken  :(
2012-04-05T22:12:51 < Laurenceb_> anyone home?
2012-04-05T22:15:19 < Thorn> I am if that's of any help lol
2012-04-05T22:15:52 <+jpa-> Laurenceb: which branch of stlink, which version (v1, v2?)
2012-04-05T22:16:29 < Laurenceb_> im using stm32f4discovery
2012-04-05T22:16:35 < Laurenceb_> and texane
2012-04-05T22:17:03 < Laurenceb_> it could be that i was using a different elf to the one on the processor
2012-04-05T22:17:15 < Laurenceb_> dont hard hardware with me atm
2012-04-05T22:17:18 < Laurenceb_> *have
2012-04-05T22:17:47 < Laurenceb_> -stm32f4discovery connected to an f1 board
2012-04-05T22:18:33 < zyp> try «run» in gdb to restart from the beginning
2012-04-05T22:18:41 < Laurenceb_> i tried that
2012-04-05T22:19:01 < Laurenceb_> it just gives the same PC address
2012-04-05T22:19:08 < Laurenceb_> and the code seems to lock up then
2012-04-05T22:19:20 < Laurenceb_> i have to power cycle the processor to unlock it
2012-04-05T22:19:25 < Laurenceb_> reset doesnt help
2012-04-05T22:20:20 < Laurenceb_> so, power on, processor running ok from status leds, fire up stlink which halts processor
2012-04-05T22:20:34 < Laurenceb_> then tar ext localhost:4242 in gdb
2012-04-05T22:20:41 < zyp> then run
2012-04-05T22:20:51 < Laurenceb_> it connects and always says im in __cs_preinit
2012-04-05T22:21:00 < Laurenceb_> if i run or continue its locked up
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2012-04-05T22:21:06 < Laurenceb_> and has to be power cycled
2012-04-05T22:21:13 < Thorn> what's the PC? is it = reset vector?
2012-04-05T22:21:20 < zyp> program counter
2012-04-05T22:21:29 < zyp> i.e. the address that is currently executing
2012-04-05T22:21:30 < Thorn> I mean its value as displayed
2012-04-05T22:21:34 < zyp> ah
2012-04-05T22:21:53 < Laurenceb_> 0x08000ae1
2012-04-05T22:22:01 < Laurenceb_> or something, cant remeber dont have hardware here
2012-04-05T22:22:10 < Thorn> does it differ from the reset vector at all?
2012-04-05T22:22:21 < Laurenceb_> yes - its at the setup stage somewhere
2012-04-05T22:22:36 < Laurenceb_> 0x080001ea rather - its pretty low
2012-04-05T22:22:50 < Laurenceb_> i think gdb is correct in saying its in the startup code
2012-04-05T22:23:04 < Laurenceb_> -if its PC value is correct
2012-04-05T22:23:21 < zyp> sounds like you broke something
2012-04-05T22:23:34 < zyp> or using defective version of stlink or something
2012-04-05T22:23:50 < Laurenceb_> it was working aerlier this afternoon
2012-04-05T22:23:56 < Laurenceb_> then it just started being weird
2012-04-05T22:24:59 < Laurenceb_> dont know what i did
2012-04-05T22:25:17 < zyp> check your debugger connections :p
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2012-04-05T22:25:39 < Laurenceb_> hmm thats true
2012-04-05T22:25:55 < Apple92> Hi everybody
2012-04-05T22:26:00 < Laurenceb_> i reconnected the lead around the time it broke
2012-04-05T22:26:14 < Laurenceb_> could be theres some flux or something on the pins
2012-04-05T22:26:35 < zyp> I'm inclined to think nrst came loose
2012-04-05T22:26:48 < Laurenceb_> hmm
2012-04-05T22:26:56 < Apple92> Does someone know if there is a FreeRTOS IRC channel ?
2012-04-05T22:27:00 < Laurenceb_> it reads chip id on when stlink initialises
2012-04-05T22:27:06 < Laurenceb_> s/on/ok
2012-04-05T22:27:18 < Laurenceb_> but it all goes wrong once gdb connects
2012-04-05T22:27:32 < zyp> see, that's because it can't reset the chip
2012-04-05T22:27:50 < Laurenceb_> hmm, ok will have a fiddle with connector tomorrow
2012-04-05T22:27:54 < Laurenceb_> at home atm
2012-04-05T22:28:08 <+Steffanx> Your hw really isn't next to you?
2012-04-05T22:28:20 <+Steffanx> on your desk
2012-04-05T22:28:33 < Laurenceb_> nope - cant take the expensive scope home
2012-04-05T22:31:29 < Laurenceb_> ok if i can fix that theres just the small question of wtf is wrong with my timer pwm
2012-04-05T22:31:57 < Thorn> I wish there were swd protocol decoders for saleae or other LAs
2012-04-05T22:31:57 < Laurenceb_> i managed to get it to halt shaortly after booting and the pwm was fine
2012-04-05T22:32:17 < Laurenceb_> so its not as simple as _just_ a pwm hardware issue
2012-04-05T22:32:41 < Laurenceb_> and its not an issue with another timer putting it into slave mode or anything
2012-04-05T22:32:49 <+Steffanx> it's not that hard to write one i guess Thorn ?
2012-04-05T22:33:20 < Laurenceb_> https://github.com/Laurenceb/STM32-Logger/blob/master/timer.c
2012-04-05T22:33:33 < Laurenceb_> so i wrote some simple test code, initialises the timers like that
2012-04-05T22:33:42 < Thorn> probably but I've never done that :)
2012-04-05T22:33:51 < Laurenceb_> timer3 pwm output just goes high after a second or so
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2012-04-05T22:36:11 <+Steffanx> ^^ a reall Apple
2012-04-05T22:41:37 <+jpa-> hmm something is not working correctly  http://paste.dy.fi/M5n/plain
2012-04-05T22:43:28 <+Steffanx> something
2012-04-05T22:44:25 <+jpa-> probably my matrix multiplication code
2012-04-05T22:44:33 <+jpa-> but it has unit tests! so it can not be wrong! :)
2012-04-05T22:45:02 <+Steffanx> Hehe
2012-04-05T22:45:10 <+Steffanx> I guess you failed at writing the unit test
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2012-04-05T22:55:29 < Laurenceb_> i guess i just need to step through my code to see what breaks the pwm
2012-04-05T22:55:42 < Laurenceb_> its got to be something in my setup code, as the pwm works if i halt
2012-04-05T23:31:17 < Thorn> stellaris mcus don't have reference manuals, there's a 1000+ page datasheet with all the information for every part (probably 200+ datasheets in total)
2012-04-05T23:32:09 < Thorn> anybody has a pdf grep tool? :)
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2012-04-05T23:38:41 < justitguy_> Thorn, When you have a pdf open, you can search.  But, as pdf files are 'plain' in raw format, just put it on a *nix platform and use grep.
2012-04-05T23:40:59 < Laurenceb_> interesting
2012-04-05T23:41:03 < Laurenceb_> i just use ctrl-f
2012-04-05T23:41:33 < Laurenceb_> but evince cant edit pdf forms correctly :(
2012-04-05T23:42:25 < Thorn> now the bad news. lm3s5 family seems to be at least twice as expensive as stm32f103
2012-04-05T23:43:54 < Thorn> (in small quantities anyway)
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2012-04-06T12:26:35 <+Steffanx> nu
2012-04-06T12:32:09 <+dekar> Steffanx, still awaiting your patches for the toolchain script
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2012-04-06T12:37:54 < Laurenceb> ok got swd working again.. but wtf
2012-04-06T12:38:08 < Laurenceb> 	RCC_APB1PeriphClockCmd(RCC_APB1Periph_I2C1, ENABLE);
2012-04-06T12:38:20 < Laurenceb> causes timer3 pwm to go high
2012-04-06T12:39:17 <+jpa-> do they use the same pins or something?
2012-04-06T12:39:38 < Laurenceb> hmm
2012-04-06T12:40:04 < Laurenceb> actually yeah - im doing some remapping tho
2012-04-06T12:40:23 < Laurenceb> maybe i need to init it first
2012-04-06T12:41:07 <+jpa-> have you enabled the remapping block (AFIO) clock?
2012-04-06T12:42:32 < Laurenceb> yes
2012-04-06T12:42:51 < Laurenceb> I2C1_SMBAl is shared with the tim3 pwm channel that goes high
2012-04-06T12:45:19 < Laurenceb> i think its setting the pin to one as it thinks its an smbus slave when the i2c is first clked
2012-04-06T12:46:07 <+jpa-> is this positive definite or what? http://paste.dy.fi/hAj/plain  :)
2012-04-06T12:52:38 < Laurenceb> i forget my matrices  :S
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2012-04-06T13:03:33 < Laurenceb> does a peripheral have to be clocked to write to its registers?
2012-04-06T13:05:25 < zyp> yes
2012-04-06T13:06:17 < Laurenceb> ok this makes no sense
2012-04-06T13:06:32 < Laurenceb> i guess i could init gpio after turning on i2c
2012-04-06T13:06:44 < Laurenceb> its hogging the SMBalert pin
2012-04-06T13:10:26 < Laurenceb> doesnt make much sense and the i2c register reset value should stop this happening
2012-04-06T13:15:16 < Laurenceb> yeah CR1 and 2 are all zero
2012-04-06T13:15:36 < Laurenceb> but it takes command of the SMBalert pin as soon as its clocked
2012-04-06T13:16:31 < zyp> SMBalert?
2012-04-06T13:16:41 < zyp> are you using smbus?
2012-04-06T13:17:14 < Laurenceb> no
2012-04-06T13:18:27 < zyp> then why care about smbalert at all?
2012-04-06T13:18:42 < Laurenceb> i dont
2012-04-06T13:18:46 < Laurenceb> but the stm32 does
2012-04-06T13:18:48 < zyp> then what?
2012-04-06T13:19:07 < zyp> no, it shouldn't be able to output anything unless the pin is set to AF
2012-04-06T13:19:10 < Laurenceb> as soon as i2c1 is clocked it takes control of portb pin5
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2012-04-06T13:19:15 < Laurenceb> it is
2012-04-06T13:19:18 < Laurenceb> for the pwm
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2012-04-06T13:19:27 < zyp> oh, right
2012-04-06T13:19:35 < zyp> because F1 doesn't have the AF selector
2012-04-06T13:19:41 < zyp> makes sense
2012-04-06T13:19:47 < Laurenceb> i2c takes control of it and it wont give it back for some reason :S
2012-04-06T13:20:03 < Laurenceb> even once i2c1 is configured
2012-04-06T13:20:46 < Laurenceb> maybe try configuring the timer pwm after the i2c, so the pm is the last thing to take control?
2012-04-06T13:20:53 < Laurenceb> *pwm
2012-04-06T13:21:12 < zyp> did you do a SWRST of the I2C peripheral?
2012-04-06T13:21:19 < Laurenceb> yes
2012-04-06T13:22:59 < zyp> it's listed in the errata sheet, section 2.6.8
2012-04-06T13:23:05 < zyp> Conflict between the TIM3_CH2 signal and the I2C1 SMBA signal, (even if SMBA is not
2012-04-06T13:23:08 < zyp> used).
2012-04-06T13:23:19 < zyp> «To avoid this conflict, TIM3_CH2 can only be used in input mode.»
2012-04-06T13:23:59 < Laurenceb> WHAT THE FUUUU
2012-04-06T13:24:22 < Laurenceb> im so screwed
2012-04-06T13:25:07 < Laurenceb> shit i may as well abandon the whole project
2012-04-06T13:25:23 < Laurenceb> i need that pwm channe;
2012-04-06T13:25:40 <+Steffanx> lol
2012-04-06T13:25:58 < Laurenceb> no lol
2012-04-06T13:26:02 <+Steffanx> No, no :P
2012-04-06T13:26:19 < Laurenceb> board hacks here i come i suppose
2012-04-06T13:26:48 < zyp> it pays off to read the errata sheet before ordering an untested board schematic, I guess
2012-04-06T13:26:49 <+Steffanx> No board is 100% ok the first time anyway..
2012-04-06T13:27:17 < Laurenceb> this is revision 4
2012-04-06T13:29:31 <+Steffanx> Not bad
2012-04-06T13:31:29 < Laurenceb> hmm
2012-04-06T13:31:40 < Laurenceb> think i can hack it to porta pin7
2012-04-06T13:31:50 < Laurenceb> and its just a daughterboard change
2012-04-06T13:41:02 < Laurenceb> no thats spi
2012-04-06T13:41:08 < Laurenceb> im screwed
2012-04-06T13:41:20 < Laurenceb> project -> bin
2012-04-06T13:55:52 <+Steffanx> hehe
2012-04-06T13:56:15 <+Steffanx> software i2c or pwm it is? :)
2012-04-06T13:57:38 < Laurenceb> i think i can use channel2 off portb pin10
2012-04-06T13:57:54 < Laurenceb> but means hacking the main board :(
2012-04-06T13:58:32 < Laurenceb> making a new revision is going to take ages if i want a sane price from pcbtrain
2012-04-06T14:00:16 <+Steffanx> Which project is this btw?
2012-04-06T14:00:48 < Laurenceb> spectrometer
2012-04-06T14:02:58 <+jpa-> you can always bitbang i2c
2012-04-06T14:03:40 <+Steffanx> Yeah, you can always redesign the pcb after that
2012-04-06T14:37:38 < Thorn> looks like the cure to most stm32 problems is "just bitbang i2c"
2012-04-06T14:38:11 <+Steffanx> Yeah, ST fix those problems a little faster
2012-04-06T14:43:27 <+jpa-> Thorn: huh, this is the first such problem i've seen :)
2012-04-06T14:45:12 < Thorn> heh
2012-04-06T14:45:14 < Thorn> how about SPI1 remapped + I2C1 incompatibility
2012-04-06T14:45:40 < Thorn> or general failure of ST to make a good I2C peripheral
2012-04-06T14:46:08 < Thorn> (if you want it to work and not lose data you either have to use DMA or highest priority interrupts)
2012-04-06T14:46:32 <+jpa-> (for slave or for master?)
2012-04-06T14:47:39 < Thorn> master definitely, slave, no idea
2012-04-06T14:48:10 <+jpa-> master controls the speed so why would you lose data?
2012-04-06T14:50:30 < Thorn> apparently its double buffered receive register is broken
2012-04-06T14:50:41 < Thorn> there's no explanation in errata
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2012-04-06T15:04:20 < Laurenceb> it can be made to work
2012-04-06T15:04:48 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/blob/master/i2c_int.c
2012-04-06T15:04:57 < Laurenceb> that works on low priority
2012-04-06T15:07:58 < Laurenceb> just breaks tim3 pwm
2012-04-06T15:08:51 <+Steffanx> That's why i don't like i2c ..
2012-04-06T15:08:56 <+Steffanx> so much code for such a simple thing
2012-04-06T15:10:45 < Tom_itx> code is cheap
2012-04-06T15:12:06 <+Steffanx> SPI too
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2012-04-06T15:37:41 < Laurenceb> nice, fixed
2012-04-06T15:37:49 < Laurenceb> with a wire jumper
2012-04-06T15:39:29 < Laurenceb> but now i have crosstalk from the indicator leds :S
2012-04-06T15:39:48 < Laurenceb> effects the output drive by about 1 part in 5000
2012-04-06T15:40:55 < Laurenceb> i think im stressing the gpio driver a little :P
2012-04-06T15:42:52 <+Steffanx> You driver the leds directly from the pins?
2012-04-06T15:44:06 < Laurenceb> yes
2012-04-06T15:44:20 < Laurenceb> im sourcing 30ma  *evil grin*
2012-04-06T15:44:32 < Thorn> use RETs
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2012-04-06T15:44:48 < Laurenceb> it works more or less ok
2012-04-06T15:45:08 < Laurenceb> looks like i am taking it close to the limit tho
2012-04-06T15:45:31 < Laurenceb> output is about 3v
2012-04-06T15:46:24 < Laurenceb> the warm up is little annoying
2012-04-06T15:46:39 <+Steffanx> Hehe
2012-04-06T15:46:56 < Laurenceb> that gives a ~0.2%shift in output current
2012-04-06T15:53:47 < Laurenceb> its not really a simple problem to solve
2012-04-06T15:54:18 < Laurenceb> ideally id have some sort of optical feedback...
2012-04-06T15:54:34 < Laurenceb> as led efficiency fluctuates a lot as well
2012-04-06T15:55:51 < Laurenceb> this is why you have photodiodes for feedback in laser modules
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2012-04-06T15:56:19 <+Steffanx> nu
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2012-04-06T15:59:18 <+dekar_> so sad, dekar quit :/
2012-04-06T16:00:30 <+Steffanx> poor dekar
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2012-04-06T17:41:10 < Laurenceb> is there a way to create a custom reset handler?
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2012-04-06T17:54:30 <+jpa-> Laurenceb: of course?
2012-04-06T17:54:45 <+jpa-> is there a ready-made reset handler? :)
2012-04-06T17:55:09 < Laurenceb> i think i have it somewhere in my setup...
2012-04-06T18:00:43 <+Steffanx> Yes you have
2012-04-06T18:08:33 <+jpa-> Steffanx: would you fix my covariance matrix?
2012-04-06T18:08:43 <+Steffanx> no
2012-04-06T18:09:00 <+Steffanx> Fix your unit tests :)
2012-04-06T18:09:23 <+jpa-> they were fine :)
2012-04-06T18:09:27 <+jpa-> my print function was wrong
2012-04-06T18:09:39 <+Steffanx> LOL
2012-04-06T18:09:56 <+Steffanx> No unit tests for your print function?
2012-04-06T18:10:08 <+jpa-> nope, it was cobbled up on the spot
2012-04-06T18:10:24 <+jpa-> because, seriously, who gets a print function wrong?
2012-04-06T18:11:13 <+jpa-> but now my filter works fine except that i need to find a nice decomposition form for the covariance matrix.. otherwise round-offs mess it up
2012-04-06T18:13:21 < dongs>  < Laurenceb> is there a way to create a custom reset handler?
2012-04-06T18:13:25 < dongs> wtf, thats what my code does
2012-04-06T18:13:34 < Laurenceb> i mean before shutdown
2012-04-06T18:13:43 < Laurenceb> i need to shutdown fatfs stuff
2012-04-06T18:13:51 < dongs> .. i dont think so..
2012-04-06T18:14:06 < dongs> sync fatfs periodically
2012-04-06T18:14:11 < dongs> then you dont need to shutdown it
2012-04-06T18:14:17 < Laurenceb> yeah
2012-04-06T18:14:25 < Laurenceb> oh well itll just have to break
2012-04-06T18:14:35 < Laurenceb> reset only happens due to watchdog timeout
2012-04-06T18:14:41 < dongs> need $1 item from digikey to get free shipping
2012-04-06T18:14:51 < dongs> anythign recommended
2012-04-06T18:14:51 < Laurenceb> penis pump?
2012-04-06T18:14:57 < dongs> i dont think they have that yet
2012-04-06T18:15:11 < dongs> bought some 0.05" 10pin headrs
2012-04-06T18:19:16 < dongs> ium sure as soon as i submit this order i wil lremember something i ditn get.
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2012-04-06T18:28:31 < dongs> damn stm32w kits are expensive as shit
2012-04-06T18:28:43 < dongs> ah, STM32W-RFCKIT isnt so bad
2012-04-06T18:30:47 < ureif> where do you buy your shit that it costs so much ?
2012-04-06T18:31:27 < dongs> cmon i need to find like > $1 < $10 thing to add to my dkey order
2012-04-06T18:35:58 < jon1012> discovery vl ? :p
2012-04-06T18:36:20 <+jpa-> some space MCUs?
2012-04-06T18:37:17 < dongs> nah. got all that. k found stuff, i remembered i needed some gates for a proj
2012-04-06T18:38:07 < Laurenceb> is there even a datasheet for the rf stuff
2012-04-06T18:38:14 < dongs> 32W?
2012-04-06T18:38:29 < dongs> yopu would think so?
2012-04-06T18:40:14 <+jpa-> someone said that it was quite poorly documented
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2012-04-06T18:40:22 <+jpa-> the RF part of the stm32w
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2012-04-06T19:04:30 < Laurenceb> yeah i thought there was no full datasheet
2012-04-06T19:04:36 < Laurenceb> wohoo everything works
2012-04-06T19:04:43 < Laurenceb> pita about the hacked pcb :(
2012-04-06T19:04:56 <+jpa-> you weren't supposed to put it in your ass
2012-04-06T19:05:16 < Laurenceb> wut
2012-04-06T19:05:26 < Laurenceb> lol
2012-04-06T19:05:37 < zyp> I was looking at stm32w myself recently, looks like reference manual aren't public
2012-04-06T19:05:43 < Laurenceb> ti temp sensor works nicely
2012-04-06T19:06:21 < Laurenceb> http://i.imgur.com/RdbKq.png
2012-04-06T19:06:31 <+jpa-> i wonder why wikipedia is talking about a lot of square roots in the P = S S' factorization, while it seems you only have to factorize it once and after that it is fine
2012-04-06T19:07:22 < Laurenceb> its been a while since i did a level maths now, sorry
2012-04-06T19:07:34 <+jpa-> :(
2012-04-06T19:07:36 < Laurenceb> i should probably know this stuff
2012-04-06T19:07:43 <+jpa-> yeah i was counting on you
2012-04-06T19:07:47 < Laurenceb> heh
2012-04-06T19:07:54 <+jpa-> Laurenceb, the gps, ins and kalman filter expert :)
2012-04-06T19:08:15 < Laurenceb> hardly, you need to head to #openpilot
2012-04-06T19:08:23 <+jpa-> nah
2012-04-06T19:08:29 <+jpa-> i can always try it out in practise
2012-04-06T19:12:12 < Laurenceb> i with my temp sensor was noisier
2012-04-06T19:12:26 < Laurenceb> you can see it aliasing
2012-04-06T19:14:10 <+jpa-> but it also has some noise in the betweens.. could be quite nice if you add some filtering
2012-04-06T19:14:23 < Laurenceb> maybe yeah
2012-04-06T19:14:35 <+jpa-> unless you really need the sub-step precision
2012-04-06T19:57:08  * jon1012 is struggling trying to add ethernet to his board :(
2012-04-06T19:57:34 < jon1012> someone knows an article where there is a precise schematic to add a phy and an ethernet jack to an stm32f4 ?
2012-04-06T19:57:54 < jon1012> (I want to add it to the stm32f4 discovery first then on my board that I'll produce)
2012-04-06T19:59:32 < Thorn> it's called "phy datasheet"
2012-04-06T19:59:55 < Thorn> the interface between phy and stm32 is basically standard (MII/RMII)
2012-04-06T20:00:21 < jon1012> is there a known compatible good phy ?
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2012-04-06T20:03:26 < zyp> any MII/RMII phy should be compatible
2012-04-06T20:13:05 < Thorn> I have some DP83848C lynig around. my olimex stm32f107 board uses STE101P, this board http://www.olimex.com/dev/stm32-p407.html has some weird one that needs 2.5V
2012-04-06T20:13:37 < jon1012> DP83848C doesn't need a clocking from the mcu ?
2012-04-06T20:15:32 < Thorn> afaik they all need common clock (50MHz for RMII) that goes to both phy and mcu
2012-04-06T20:16:03 < jon1012> so I need to run my mcu at a multiple of 50mhz ?
2012-04-06T20:16:11 < zyp> no
2012-04-06T20:16:19 < zyp> only MAC-PHY clock
2012-04-06T20:16:50 < Thorn> it's not the HSE clock, it's MAC dedicated clock
2012-04-06T20:17:05 < zyp> exactly
2012-04-06T20:18:02 < Thorn> huh, look at this. olimex changed the phy in STM32-P107 rev. B to ks8721bl. I have a rev. A with ste101p
2012-04-06T20:18:38 < Thorn> now if only they bothered to explain the reason for the change...
2012-04-06T20:20:00 < zyp> actually, if you're going to have the F4 originate the MAC-PHY clock, you might have to run the system clock from a multiple of 25 or 50 MHz
2012-04-06T20:20:15 < zyp> check chapter 28.4 in reference manual
2012-04-06T20:22:16 < zyp> otherwise you can have a seperate 25 MHz clock that you provide to both MAC and PHY, or have a PHY originating the clock
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2012-04-06T20:23:52 < Thorn> why do phy chips always require weird resistor values like 6.49K, 4.99K etc
2012-04-06T20:36:12 < Thorn> http://www.ebay.com/itm/Segger-JLINK-EDU-arm-usb-jtag-programmer-debugger-/270948577534
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2012-04-06T21:40:48 < zyp> flyback-, don't be a dick
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2012-04-07T04:25:11 < dongs> am I reading this right? I still have TIM9..TIM14 on F103_MD device?
2012-04-07T04:25:22 < dongs> if I just wanted to use htem as generic timers for stuff
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2012-04-07T08:51:31 < dongs> oh, nope. missed the part about "applies only to XL density"
2012-04-07T09:19:09 < dongs> huh.. no TIM5 interrupt either on _MD?
2012-04-07T10:27:55 < dongs> wtf. does  TIM5 exist on F103_MD or no?
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2012-04-07T10:35:20 <+jpa-> dongs: the "device summary" table is often the best place to check for that
2012-04-07T10:35:25 < dongs> i did.
2012-04-07T10:35:28 < dongs> it shows it there.
2012-04-07T10:35:34 < dongs> but its not starting.
2012-04-07T10:35:42 <+jpa-> did you enable the clock for it? :)
2012-04-07T10:35:45 < dongs> yes.
2012-04-07T10:35:54 < dongs> apb1, tim5.
2012-04-07T10:36:01 < dongs> configured timebase.
2012-04-07T10:36:04 < dongs> enabled.
2012-04-07T10:36:14 < dongs> i just want to use it as a freerunning timer.
2012-04-07T10:36:18 < dongs> anythign else besides that to do?
2012-04-07T10:36:22 < dongs> TIM->CNT never changes.
2012-04-07T10:36:48 <+jpa-> when you read back the value of TIM5->CR1, is it what you set or 0?
2012-04-07T10:38:03 < dongs> all zeros for everything in tim5 peripheral
2012-04-07T10:38:03 < dongs> wtf
2012-04-07T10:38:30 < Thorn> what's your exact part?
2012-04-07T10:38:32 <+jpa-> in my experience, that either means clocks missing or non-existent device
2012-04-07T10:38:38 < dongs> C8T6
2012-04-07T10:38:56 < dongs> i.e. F103 medium density
2012-04-07T10:39:36 <+jpa-> no TIM5 on that one
2012-04-07T10:39:46 < dongs> thats not what PDF says
2012-04-07T10:39:57 < Thorn> http://www.st.com/internet/com/TECHNICAL_RESOURCES/TECHNICAL_LITERATURE/DATASHEET/CD00161566.pdf
2012-04-07T10:40:02 <+jpa-> stm32f103c8t6 datasheet section "2.3.15 Timers and watchdogs"
2012-04-07T10:40:08 < Thorn> no TIM5
2012-04-07T10:40:13 <+jpa-> just tim1, tim2, tim3, tim4
2012-04-07T10:40:16 < Thorn> page 17
2012-04-07T10:40:47 < dongs> ok.
2012-04-07T10:40:50 < dongs> that makes sense.
2012-04-07T10:40:53 < dongs>  so im not too insane
2012-04-07T10:40:59 < dongs> but RM0008 says it has TIM5.
2012-04-07T10:41:14 < Thorn> The medium-density STM32F103xx performance line devices include an advanced-control timer, three general-purpose timers, two watchdog timers and a SysTick timer.
2012-04-07T10:41:56 < Thorn> TIM1 = advanced control, TIM2...TIM4 = general purpose
2012-04-07T10:42:11 <+jpa-> dongs: yeah, the lovely "applies to the whole family, unless otherwise specified"
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2012-04-07T10:42:39 < dongs> http://i.imgur.com/azNho.png i kno rite.
2012-04-07T10:43:16 <+jpa-> i guess they didn't bother to write "TIM2 to TIM4" as a separate option
2012-04-07T10:43:16 < Thorn> see also fig. 10 (memory map) in datasheet, there's no TIM5 there either
2012-04-07T10:43:59 < dongs> well, that takes out that idea
2012-04-07T10:44:43 < Thorn> that table also says "TIM1 & TIM8"
2012-04-07T10:44:58 < Thorn> as if there's TIM8 in F103C8
2012-04-07T10:45:03 <+jpa-> apparently that table sucks :)
2012-04-07T10:45:21 <+jpa-> i'd say it would be better to have no such table than a misleading table
2012-04-07T10:45:41 < dongs> table full of dongs
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2012-04-07T18:39:44  * jpa- steals justitguy's beer
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2012-04-07T18:57:25 < Thorn> jpa-: you meant caviar, didn't you
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2012-04-07T20:16:32 < corecode> meh, that stm standard lib is huge
2012-04-07T20:16:35 < corecode> bulky
2012-04-07T20:16:50 < corecode> dfu takes 7KB of flash
2012-04-07T20:16:54 < corecode> how is that possible
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2012-04-07T22:08:27 < justitguy> corecode, just include components you need.
2012-04-07T22:22:45 <+jpa-> hmm.. i'm using 3kB stack space and 2.5kB static and I would like to fit this eventually on a controller with 10kB ram.. but i'm not nearly done yet so 4kB free is not going to last for long
2012-04-07T22:25:47 <+Steffanx> Then 10k is a no go ..
2012-04-07T22:25:56 <+Steffanx> Simple conclusion huh?
2012-04-07T22:26:12 <+jpa-> no!
2012-04-07T22:26:14 <+jpa-> :(
2012-04-07T22:26:20 <+jpa-> i'll just optimize it!
2012-04-07T22:26:39 <+Steffanx> and .. 2.5+3 = 4.5 :P
2012-04-07T22:26:45 <+Steffanx> *left
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2012-04-07T23:15:46 < justitguy> Very confused, not not something foreign to me.  jpa, if you don't have recursive calls or declarations which are not recursive, why the problem?
2012-04-07T23:20:01 < justitguy> Sorry about the "not not", was distracted.  So if you don't have recursion and you can control allocations in you static declarations, why do you have problems?
2012-04-07T23:21:36 < justitguy> Or jpa, are you trying to compress into an STM with smaller storage?  Perhaps, for $0.20 you just use a larger ram size STM?
2012-04-07T23:23:12 < justitguy> Or jpa, write such highly usage in ARM code?
2012-04-07T23:24:02 < justitguy> flyback-, that would take a driver, jpa may not have the space.  He presents he is in a box and has few resources.
2012-04-07T23:25:09 <+jpa-> ah, yeah, this time i'm fortunately free to choose a bigger controller (and i haven't actually even ordered the stuff yet)
2012-04-07T23:25:24 <+jpa-> but it would kind-of fit :D
2012-04-07T23:28:00 <+dekar> Steffanx, http://www.youtube.com/watch?v=ul4CZrnEFxU
2012-04-07T23:30:59 <+jpa-> hmm, i guess 10kB is the max that is available in stm32l series anyway?
2012-04-07T23:31:37 <+jpa-> ah no, the biggest ones have 16kB
2012-04-07T23:33:38 <+jpa-> heh, actually the part i have been looking at has 16kB ram
2012-04-07T23:33:42 <+jpa-> so i'm fine after all :)
2012-04-07T23:35:55 < justitguy> jpa, I should laugh at the double entendre.  But, if good for you, perfect.
2012-04-07T23:36:15 < justitguy> LOL, sorry
2012-04-07T23:36:47 <+jpa-> heh, i wonder which of my sentences had that :)
2012-04-07T23:37:16 < justitguy> 10 cm is best, but 16 cm would be better .... lol
2012-04-07T23:37:37 <+jpa-> it's so difficult to figure it out ahead of time - very annoying to be midway there and realize you are stuck
2012-04-07T23:37:49 < justitguy> Sorry, have been up for 24 hours, again traveling and a bit silly now.
2012-04-07T23:38:43 <+jpa-> np :)
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2012-04-07T23:39:43 < justitguy> jpa, do you write code that is recursive and/or using an embedded opsys you can easily? get metrics.
2012-04-07T23:41:24 <+jpa-> no recursion, getting metrics is easy (that's how i got the 3kB number anyway)
2012-04-07T23:42:10 <+jpa-> problem is that i can't code it ready until i have the hardware, and before making the hardware i have to know if stm32L151 is going to be enough :)
2012-04-07T23:43:17 < justitguy> jpa, just write the code in a devel system, look to see if it can be built/linked.  Then scale to processor and allow some margin.
2012-04-07T23:44:45 < justitguy> Okay, rather bass akwards, but suitable for most projects where you are not constrained to a particular platform.
2012-04-07T23:44:56 <+jpa-> yeah.. i've written all the major parts :)  but surprises require surprising amounts of code
2012-04-07T23:45:25 <+jpa-> one question mark is usb.. but it is not critical, just nice-to-have; i would want a usb serial port driver
2012-04-07T23:46:11 < justitguy> Then, time to revisit and optimize.  Do that first.  Generally easy to hold code size down well.
2012-04-07T23:46:34 <+jpa-> yeah, code size if probably not a problem
2012-04-07T23:46:43 < justitguy> STM provides models for USB ... having a problem with the host/device?
2012-04-07T23:47:06 <+jpa-> well i can't try the models out before i have a board with USB (i currently have none)
2012-04-07T23:47:19 <+jpa-> RAM is more of a problem, but i guess USB can live with 1kB or so
2012-04-07T23:48:09 < justitguy> Careful, the type of USB interface will perhaps change this.
2012-04-07T23:48:38 < justitguy> do you want USB OTG, HOST, OR DEVICE?
2012-04-07T23:48:46 <+jpa-> device, just CDC
2012-04-07T23:49:05 <+jpa-> basically i could just slam FTDI chip there but why, when i can have it all in one chip
2012-04-07T23:51:15 < justitguy> I understand.  Now, you must register the major/minor parts so that the device (computer) knows how to play.  You could emulate the FTDI device (perhaps okay) but you still must tell the other side "who you are".
2012-04-07T23:52:27 < justitguy> What endpoints you support etc..   This is well documented in the STM docs.
2012-04-07T23:52:32 <+jpa-> true
2012-04-07T23:56:01 < justitguy> So, what is the problem?
2012-04-07T23:56:38 <+jpa-> not much now that i realized it has 16kB instead of 10cm
2012-04-07T23:56:57 <+jpa-> i'm quite sure 16kB is going to be enough
2012-04-07T23:57:19 <+jpa-> (i'm estimating that it would probably fit in 8kB, so 2x is quite safe)
--- Day changed Sun Apr 08 2012
2012-04-08T00:00:01 < justitguy> Are you messing with the linker? attributes?
2012-04-08T00:00:22 <+jpa-> not yet, but yeah, i know there is possibility to optimize further
2012-04-08T00:00:40 < justitguy> Carefull...careful
2012-04-08T00:02:51 < justitguy> jpa, it you push code so that it barely fits, you are looking for trouble.  Try to allow a 20-25% margin in all parts.  Nobody writes perfect code and you will find you need the reserve, nor or later.
2012-04-08T00:03:15 < justitguy> **now or later
2012-04-08T00:03:41 <+jpa-> 2x is more than 20% :)
2012-04-08T00:04:02 < justitguy> Yes, so what is the problem?
2012-04-08T00:04:18 <+jpa-> none :)
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2012-04-08T00:04:49 < justitguy> Cool, problem solved and you can ship the code and product without worries.
2012-04-08T00:05:35 <+jpa-> it'll ship as a birthday present to my nephew :P
2012-04-08T00:06:28 < justitguy> Very cool.  I do those types of things too.  Hope he appreciates your efforts but don't be disappointed if he does not.
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2012-04-08T00:48:21 <+Steffanx> wtf dekar :S
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2012-04-08T01:13:11 < justitguy> Steffanx, why are to talking that way to dekar, he is probably busy?
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2012-04-08T01:30:13 <+dekar> justitguy, cause I sent him a link earlier
2012-04-08T01:30:40 <+dekar> izua, http://www.youtube.com/watch?v=ul4CZrnEFxU
2012-04-08T01:31:02 <+izua> dekar: i am raging so fucking hard
2012-04-08T01:31:07 <+izua> got some motorola radios
2012-04-08T01:31:16 <+dekar> for osmocom?
2012-04-08T01:31:22 <+izua> locked on erm.. channels that shouldn't locked on
2012-04-08T01:31:23 <+izua> so to speak
2012-04-08T01:31:28 <+izua> and the only way one can mess with them
2012-04-08T01:31:29 <+izua> i mean
2012-04-08T01:31:29 <+izua> at all
2012-04-08T01:31:31 <+izua> change channels
2012-04-08T01:31:32 <+izua> anything
2012-04-08T01:31:33 <+izua> ANYTHING
2012-04-08T01:31:42 <+izua> is to pay more money to motorola to give you the software to mess with it
2012-04-08T01:31:52 <+izua> wait there's more.
2012-04-08T01:32:02 <+dekar> what kind of radios and for which project
2012-04-08T01:32:03 <+izua> you have to pay each time you want to mess with a different software.
2012-04-08T01:32:11 <+izua> wait there's more
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2012-04-08T01:32:16 <+izua> you need a 386 in dos
2012-04-08T01:32:25 <+izua> otherwise the dead loop delays won't run right
2012-04-08T01:32:33 <+izua> *rage*
2012-04-08T01:32:34 <+izua> erm
2012-04-08T01:32:50 <+izua> some older models.. one's a cp160.. and the other is a gm300 something.. the text's erased
2012-04-08T01:34:23 <+dekar> go for SDR next time :D
2012-04-08T01:34:24 <+izua> dekar: movie looks epic
2012-04-08T01:34:33 <+izua> dekar: you can't use SDR on the field
2012-04-08T01:34:47 <+izua> like a guy manipulating a crane
2012-04-08T01:34:48 <+dekar> yeah, did watch it - was funny, not too epic though
2012-04-08T01:35:17 <+dekar> you got a new job I don't know about?
2012-04-08T01:35:56 <+dekar> the movie was pretty slow at the beginning and some scenes are really different from how they presented them in the trailer, kinda weird
2012-04-08T01:36:06 <+izua> nah, just doing some random shit. have to set up a radio system for some guys
2012-04-08T01:36:19 <+izua> with, you know.. cheapest stuff out there
2012-04-08T01:36:30 <+dekar> I see, that's no fun
2012-04-08T01:36:42 <+izua> introducing third world economy
2012-04-08T01:36:55 <+izua> heh, i checked motorola's website, they have epic shit nowadays
2012-04-08T01:37:01 <+izua> these toys.. are like 1990
2012-04-08T01:37:17 <+dekar> I had bbq today - grilled some sweet potatoes (never had any before)
2012-04-08T01:37:25 <+dekar> meat is still better, but I liked them a lot
2012-04-08T01:37:33 <+izua> really?
2012-04-08T01:37:48 <+dekar> ya
2012-04-08T01:37:51 <+izua> i mess with potatoes all the time
2012-04-08T01:37:57 <+izua> best food, ofc, after meat
2012-04-08T01:37:59 <+dekar> sweet potatoes?
2012-04-08T01:38:04 <+izua> those too
2012-04-08T01:38:08 <+dekar> the ones that are orange inside?
2012-04-08T01:38:15 <+izua> lately i've been doing 'em cut french fry style
2012-04-08T01:38:15 <+dekar> they're pretty uncommon in germany
2012-04-08T01:38:21 <+izua> and them grilling them
2012-04-08T01:38:28 <+izua> they're like.. baked.. fries
2012-04-08T01:38:34 <+izua> epic inside, crusty outside
2012-04-08T01:38:41 <+dekar> germans eat tons of normal potatoes, but the sweet ones you barely get here
2012-04-08T01:38:51 <+izua> what's the 'norm' for prepping them?
2012-04-08T01:38:53 <+izua> fried? mashed?
2012-04-08T01:38:55 < justitguy> This sounds like the cooking channel now ... LOL
2012-04-08T01:39:17 <+dekar> just boiling is the most common prep I guess, frying is also really common
2012-04-08T01:39:17 <+izua> it's also motorola radio rage hate channel
2012-04-08T01:39:35 <+dekar> well baking as well
2012-04-08T01:39:39 <+izua> a friend who works as a pro cook also taught me to make them peeled
2012-04-08T01:39:42 <+izua> like.. chips
2012-04-08T01:39:44 <+dekar> germans love potatoes :)
2012-04-08T01:40:00 <+dekar> I don't bother peeling them usually
2012-04-08T01:40:17 <+izua> deep fried for 30 seconds (although i'm not a fan of deep fried anymore, since i lost weight) and you have the most epic cheeps
2012-04-08T01:40:18 <+izua> erm
2012-04-08T01:40:26 <+izua> not.. having their skins removed
2012-04-08T01:40:29 <+izua> that's.. skinned i think
2012-04-08T01:40:43 <+izua> peeled, as in cut in very thin slices. like chips
2012-04-08T01:40:48 <+dekar> oh I see
2012-04-08T01:41:05 <+dekar> yeah deep frying is bad, tastes so good though :D
2012-04-08T01:41:09 < justitguy> Still cooking, when you are done with that, want to actually solve problems?  Okay dedar, I am 1/2 french but also 1/2 german ... you think you are are war better than I am with myself?  LOL
2012-04-08T01:41:21 <+izua> try the baked version
2012-04-08T01:41:24 <+izua> if you like french fries
2012-04-08T01:41:33 <+izua> justitguy: an hero
2012-04-08T01:41:46 <+izua> or you could raise a half swastika/half white flag
2012-04-08T01:41:56 <+izua> inb4 getting assaulted for being  racist
2012-04-08T01:41:58 < justitguy> NEVER, NEVER
2012-04-08T01:42:01 <+izua> dekar: anyway.
2012-04-08T01:42:10 <+izua> dekar: try the french fries cut, baked version
2012-04-08T01:42:38 <+izua> either oil the grill a tiny tiny bit, and turn them around every 5 minutes or so
2012-04-08T01:43:02 < justitguy> izua, you insult me!  I am probably the most accepting person you would ever meet.
2012-04-08T01:43:17 <+dekar> too lazy too cook stuff atm, I just wrap stuff in aluminum foil and grill it :D
2012-04-08T01:43:20 <+izua> or put 'em in the oven, in a  tray, slightly oiled, twist them around every 10 minutes or so, so they get the crust on every stuff
2012-04-08T01:43:25 <+izua> s/stuff/side
2012-04-08T01:43:45 <+dekar> also I have no real oven, I have a microwave with grill
2012-04-08T01:43:53 <+izua> i also drop paprika on them, garlic, and laurel leaves
2012-04-08T01:43:55 <+dekar> functionality
2012-04-08T01:44:04 <+izua> that mixes with the crust and it's so fucking epic and spicy
2012-04-08T01:44:19 < justitguy> Oh, foodie channel here.  How did you control the hot oil or oven with an STM32?
2012-04-08T01:44:25 <+dekar> yeah I need an oven as well -.-"
2012-04-08T01:44:44 <+izua> and in the end i put them trhough some cream or if i'm not lazy cream/garlic/condiments sauce
2012-04-08T01:44:49 <+izua> best shit ever
2012-04-08T01:44:53 <+dekar> justitguy, he actually uses meat-relays
2012-04-08T01:45:02 <+izua> i could not live without an oven bro
2012-04-08T01:45:05 <+dekar> aka arms
2012-04-08T01:45:05 < justitguy> Who does not have an oven?
2012-04-08T01:45:13 <+dekar> I don't have an oven
2012-04-08T01:45:14 <+izua> i don't have a microwave
2012-04-08T01:45:22 <+dekar> small one room flat
2012-04-08T01:45:32 <+izua> since i moved out i don't have a lot of stuff ._.
2012-04-08T01:45:39 <+dekar> I am glad I have a washing machine XD
2012-04-08T01:45:44 <+izua> haha
2012-04-08T01:45:55 < justitguy> dakar, should I sent you plans or just the oven?
2012-04-08T01:46:10 <+izua> justitguy: you can control temperature in an oven with just an stm32
2012-04-08T01:46:21 <+izua> it has an internal, relative thermometer, hooked up to an adc
2012-04-08T01:46:22 <+dekar> but yeah once I have my BSc and get employed for like 3 days a week (atm working 1 day a week) I will get a bigger place to live
2012-04-08T01:46:25 <+izua> it's failythough :D
2012-04-08T01:46:45 <+izua> dekar: self inviting myself to your housewarming party :D
2012-04-08T01:47:07 < justitguy> Damn, guys, sorry I just assumed I was talking to real developers who would do what it took to make it.  I am really sorry.
2012-04-08T01:47:09 <+dekar> izua, you'll have to bring food though :)
2012-04-08T01:47:28 <+izua> justitguy: lol
2012-04-08T01:47:39  * dekar feels like it is that time to invade france again
2012-04-08T01:47:44 <+izua> this channel is pretty offtopic unless there's a smart question invovled
2012-04-08T01:47:59  * izua feels like allying with dekar, then starting an armed insurrection
2012-04-08T01:48:11 <+dekar> haha
2012-04-08T01:48:11 <+izua> erm. insurgency.
2012-04-08T01:48:16 <+izua> whatever we did in ww2.
2012-04-08T01:48:53 <+izua> (we sort of failed)
2012-04-08T01:49:01 < justitguy> I will simply sit on a sat and put your ARMs in display as a showcase of misuse.  LOL
2012-04-08T01:49:19 <+dekar> justitguy, in case you don't know me, I am lefty, liberal and besides that only 75% german and 25% turkish ;)
2012-04-08T01:49:27 <+dekar> so don't take me serious
2012-04-08T01:50:15 <+dekar> izua, habaneros are overrated imo
2012-04-08T01:50:26 <+dekar> I always read how they have this fruity taste
2012-04-08T01:50:46 <+dekar> it's either all lies, or my habaneros are somehow broken
2012-04-08T01:50:59 < justitguy> dekar, I probably am the most serious guy you would know.  Politics are pramagtic, not left or right.  Just know that public policy can be funded realistically.
2012-04-08T01:51:01 <+dekar> mine were just hot
2012-04-08T01:51:36 <+izua> nah they are ok
2012-04-08T01:51:38 <+izua> you're broken
2012-04-08T01:52:36 <+dekar> so yours were fruity? I had fatalii peppers and they had this intense citrus flavor which was awesome
2012-04-08T01:52:46 <+dekar> but my habaneros never had any of that
2012-04-08T01:53:15 <+izua> nah
2012-04-08T01:53:16 < justitguy> dekar, you know of course that your government has not pubically announced that the arguements for global warming are faulted and pubically built upon fraud?
2012-04-08T01:53:23 <+izua> they were just incredibly hot
2012-04-08T01:53:41 <+izua> fruity?
2012-04-08T01:53:41 < Laurenceb_> dekar: lulwut
2012-04-08T01:53:45 < justitguy> *policitally
2012-04-08T01:53:48 <+izua> fruity/citrusy.. that sounds awesome
2012-04-08T01:53:58 <+izua> dekar: on the topic of </random> i am also brewing mead
2012-04-08T01:54:05 <+dekar> izua, http://en.wikipedia.org/wiki/Fatalii
2012-04-08T01:54:13 <+dekar> haha neat
2012-04-08T01:54:21 <+dekar> I actually own bees
2012-04-08T01:54:29 <+izua> dekar: where can i buy that
2012-04-08T01:54:31 <+izua> send me some seeds
2012-04-08T01:54:32 <+dekar> did I ever tell you that?
2012-04-08T01:54:36 <+izua> you do?
2012-04-08T01:54:38 <+izua> that's epic
2012-04-08T01:54:39 <+dekar> I ate all my seeds -.-
2012-04-08T01:54:44 <+izua> i always wanted to do that
2012-04-08T01:54:48 < justitguy> Okay, Chille breath.  LOL
2012-04-08T01:54:59 <+izua> dekar: *puppy eyes*
2012-04-08T01:55:11 <+izua> just save a bunch next time you get one?
2012-04-08T01:55:14 <+dekar> sure
2012-04-08T01:55:31 <+izua> i can't get any sort of exotic peppers imported here :(
2012-04-08T01:55:41 -!- peabody124 [~peabody12@c-98-201-56-63.hsd1.tx.comcast.net] has quit [Quit: peabody124]
2012-04-08T01:56:22 <+dekar> justitguy, so you don't believe in global warming?
2012-04-08T01:56:28 <+izua> i bought a bunch of cayennes when i was in .nl last year from a local market
2012-04-08T01:56:30 < justitguy> izua, sure you can.  Just visit your specialty market (black or white).
2012-04-08T01:56:30 < Laurenceb_> wtf guys
2012-04-08T01:56:35 < Laurenceb_> try to stay on topic
2012-04-08T01:56:50 <+izua> first generation was ok, but the seeds from those were sterile
2012-04-08T01:56:56 <+dekar> what about it in particular is it that you don't believe, I am pretty sure there is hard evidence that earth is getting warmer
2012-04-08T01:56:56 <+izua> either that, or i failed at raising them
2012-04-08T01:57:01 < justitguy> Laurenceb, I have been trying, ... without success.
2012-04-08T01:57:02 <+izua> justitguy: none found :(
2012-04-08T01:57:58 -!- ChanServ changed the topic of ##stm32 to: code protection bug: http://tinyurl.com/4469sbn | Prepare for the two minutes of /hate/love. this channel is publicly logged, ask zlog for more. (also for free z80s) | Join us building the ##stm32 toolchain: https://github.com/EliasOenal/TNT | wiki coming soon, suggestions for the script? dokuwiki: 1, mediawiki: 2. talk to izua, dekar or steffan | welcome to stm32-cooking
2012-04-08T01:58:46 < justitguy> dekar, the host must start a new channel.  perhaps on topic.
2012-04-08T02:00:45 < justitguy> so, who is actually having success/problems with the STM32?
2012-04-08T02:01:04 <+dekar> I built a product based on the stm32, works fine
2012-04-08T02:01:09 <+dekar> so back to OT now?
2012-04-08T02:01:21 < justitguy> OT?
2012-04-08T02:01:52 < justitguy> Other Topic?  Start a channel FreeNode for that.
2012-04-08T02:02:14 < dongs> #stm32-without-jews
2012-04-08T02:03:02 < justitguy> dongs, you just lost all respect.  While not jewish, I resent you would do this.
2012-04-08T02:03:15 < Laurenceb_> hey dont talk like that about the people who did 911
2012-04-08T02:03:30 <+izua> i thought those were the masons
2012-04-08T02:04:27 < Laurenceb_> justitguy: i think dongs is jewish :P
2012-04-08T02:04:34 < Laurenceb_> trolled
2012-04-08T02:04:41 <+dekar> it was the nazi reichsflugscheiben, they came back from the dark side of the moon!
2012-04-08T02:05:05 < Laurenceb_> lol i need to watch that film too
2012-04-08T02:05:09 < justitguy> Perhaps he is, no matter.  His statement is racist and totally inappropriate.
2012-04-08T02:05:32 < Laurenceb_> so is most of the stuff in here this evening :P
2012-04-08T02:06:28 < justitguy> Watch "Schindler's list" as I am related.
2012-04-08T02:06:57 <+dekar> so you're related to nazis?
2012-04-08T02:08:23 < justitguy> Absolutely perhaps.  But I KNOW that my family has been anti-nazi for centuries.
2012-04-08T02:08:25 < Laurenceb_> lol so much trolling in here tonight
2012-04-08T02:08:56 < Laurenceb_> if this was irl id just had out some AKs and retreat to a safe distance
2012-04-08T02:09:17 <+izua> to toss a grenade?
2012-04-08T02:10:05 <+dekar> I think we shouldn't allow this french guy who is related to nazis in our channel
2012-04-08T02:11:35 < justitguy> Boys/Men? Don't go there.  Venting your emotions or your desire to control others will only result in your liberties to be challenged/reduced.  If you are happy about that, you should be sad indeed.
2012-04-08T02:12:41 <+izua> this is the internet dude
2012-04-08T02:12:51 <+izua> every boy is a hulky muscular killing machine
2012-04-08T02:13:05 <+dekar> and green ofc
2012-04-08T02:13:14 <+izua> there was something about lesbians and smarts too
2012-04-08T02:13:27 <+izua> but i don't rmember the whole quote, however --  i remember a relevant one
2012-04-08T02:13:39 < justitguy> izua, are you a lesbian?
2012-04-08T02:13:41 <+dekar> I do like lesbians :)
2012-04-08T02:13:45 <+izua> #lesbians is like #mensa, but instead of pretending to be smart, people just pretend to be chicks
2012-04-08T02:13:59 <+izua> no, but i like 'em
2012-04-08T02:14:34 < justitguy> So, you would be controlled by "boys" stronger and smarter than you.  Explains alot.
2012-04-08T02:15:31 <+izua> justitguy: http://www.stopgeek.com/wp-content/uploads/2007/07/sense.jpg
2012-04-08T02:16:01 < justitguy> Takes you another to explain?  Why can you not do that for yourself?
2012-04-08T02:16:46 < justitguy> Sure you are not a boy in lesbian clothing?
2012-04-08T02:17:10 <+izua> i could take a picture for you
2012-04-08T02:17:33 <+dekar> yeah we all love your lesbian clothing izua  :)
2012-04-08T02:17:44 < justitguy> IF so, not a problem.  But, stop being agressive with people who might actully like you for who you are.
2012-04-08T02:18:25 <+izua> dekar: i play butch and 'get the feminine ones
2012-04-08T02:18:27 <+izua> works like a charm
2012-04-08T02:19:10 < justitguy> Good for you and now that you mention dekar ... well he is who he is
2012-04-08T02:28:34 < justitguy> izua, are you now changing or taking self-pictures?
2012-04-08T02:29:20 <+izua> lesbian means "female homosexuals". i do not cater my pickup and escort services to male homosexuals.
2012-04-08T02:30:44 < justitguy> izua, you are correct in your definition.  So you are an escort who caters to both men and women?
2012-04-08T02:31:55 <+izua> read 7 lines above until you figure it out
2012-04-08T02:33:09 <+izua> speaking of improving genetics - know this guy? https://en.wikipedia.org/wiki/Aubrey_de_Grey
2012-04-08T02:33:10 <+izua> erm
2012-04-08T02:33:12 <+izua> not here
2012-04-08T02:33:52 < justitguy> Got it.  So izua, you are here looking only to play and/or solicit people for sex and NOT actually someone who has a STM32 problem or a person offering help in the STM32 arena?
2012-04-08T02:34:35 <+izua> justitguy: here's how the internet (and this channel works). pay attention, i'm going to explain this once.
2012-04-08T02:34:43 <+izua> i suggest you put it on your desktop.
2012-04-08T02:35:00 <+izua> you ask a serious question, and people who know the answer will start a conversation.
2012-04-08T02:35:12 < justitguy> Not necessary izua , you have made yourself clear.
2012-04-08T02:35:14 <+izua> if no serious question is around, people will tend to fuck around.
2012-04-08T02:35:27 <+izua> if you act like a retard, you'll get trolled.
2012-04-08T02:35:38 < Tom_itx> ya
2012-04-08T02:36:02 <+dekar> trolled by people like me :)
2012-04-08T02:36:02 <+izua> justitguy: do you have a stm32 related question/problem or a project or experiment you wish to share?
2012-04-08T02:36:19 < justitguy> Yes, actually I do.
2012-04-08T02:36:35 < justitguy> Thanks for asking.
2012-04-08T02:37:15 < justitguy> Does anyone here have real experience with NAND Flash mlc/slc and filesystems?
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2012-04-08T02:38:10 < justitguy> sorry izua, you can take the dildo out of your ass now.  LOL
2012-04-08T02:39:06 <+izua> you suck at even making comebacks
2012-04-08T02:39:34 < justitguy> thanks izua.
2012-04-08T02:39:40 <+dekar> justitguy, I have used UBI (and ubiFS) before
2012-04-08T02:39:55 <+izua> is that for real computers, or embedded work?
2012-04-08T02:40:06 <+dekar> was a tegra2 board
2012-04-08T02:40:17 <+izua> i've ran into it while messing with some stuff for a logger, ended up with petitfat though xD
2012-04-08T02:40:40 <+izua> o_O
2012-04-08T02:41:31 <+izua> hm. i don't think tegra really counts as embedded >.>
2012-04-08T02:41:43 < justitguy> Now, I made a platform with an STM32F417 with multiple NAND devices.  I select the NAND device using only NCE and Address lines.  I want to be sure the ECC logic works.  Anyone doing this?
2012-04-08T02:45:34 < justitguy> dekar, UBI is okay but rather terrible at wear leveling.  Have looked at YAFFS too, which requires a terrible price for RAM storage.  Anything better anyone knows about?
2012-04-08T02:46:08 < justitguy> izua, embedded
2012-04-08T02:46:17 <+izua> justitguy: on the serious topic. as far as i'm aware, ecc will transparently correct 1/codelength of the page, or the whole page will fail.
2012-04-08T02:47:19 <+dekar> justitguy, UBI has a write counter for each block, why would it be terrible for wear leveling?
2012-04-08T02:47:20 <+izua> well, it's a thin line i guess. anything that can run android, can run a fully fledged linux.
2012-04-08T02:48:21 < justitguy> izua, do you know if the STM will ignore the high order bits when doing the transefer?  Remember A16/A17 separate spaces.  But if I want to use the onboard ECC generator, are you ABSOLUTELY SURE that I could use the higher order bits for chip select?
2012-04-08T02:49:11 < justitguy> Qualified, of course by NCE_?
2012-04-08T02:50:28 <+izua> i'm not sure exactly what you're doing
2012-04-08T02:50:43 < justitguy> izua, ECC does not transparently correct anything at the low level.  Only a driver that corrects and detects the ECC errors does this.
2012-04-08T02:50:47 <+izua> i'm understanding that you're using the memory mapper for a0-15, and the higher order bits to select individual chips.
2012-04-08T02:51:20 <+izua> using higher address bits for the nCE lines could work, but you'd need to make sure anything that _might_ use those bits for addressing won't.
2012-04-08T02:51:34 <+izua> or you could gate some of those lines, to extract individual nCE signals.
2012-04-08T02:51:43 <+izua> but since you already made the board, that's probably not an option.
2012-04-08T02:52:44 <+izua> i'm not sure - i have only messed with two low level flash chips, transferring eccs without using them seems pointless though.
2012-04-08T02:53:17 < justitguy> izua, know how to design logic.  Was asking if the onboard ECC generator would work for the transfer when the high-order bits were used for addressing.  This is an engineering question or one for STM FAEs I think.
2012-04-08T02:55:30 < justitguy> Just wondered if anyone has used the high order address bits for "device select" QUALIFIED of course by NCE
2012-04-08T02:55:53 <+izua> that's a trick as old as memory mapping.
2012-04-08T02:56:05 <+izua> dekar hates it and think it's a dirty hack, btw.
2012-04-08T02:57:05 <+izua> you get to choose the address, so in theory, you also get to choose how addressing lines are used - for actual addressing or enable lines.
2012-04-08T02:57:54 < justitguy> Not so at all.  Just expanding the chip selects for different types of NAND.
2012-04-08T02:58:12 < justitguy> Clearly you have no experience and cannot really comment.
2012-04-08T02:58:12 <+izua> i don't have an exact answer - but let's think of it with smaller numbers
2012-04-08T02:59:01 <+izua> i'm sorry.
2012-04-08T02:59:11 <+izua> you're memory mapping chip enables to the address lines.
2012-04-08T02:59:17 <+izua> all hail to you, great engineer.
2012-04-08T02:59:35 < justitguy> That is exactly what the STM does with regions of memory.
2012-04-08T03:00:00 < justitguy> I only want to expand for the NAND interface and the ECC generator.
2012-04-08T03:01:47 < justitguy> Why is that so difficult to imagine?  I only want to know if anyone has used high-order address bits for extended chip select AND have the ECC generator not see the high order selects.
2012-04-08T03:02:44 <+dekar> I haven't used any external memory with the stm32 so far
2012-04-08T03:02:51 < justitguy> If you absolutely know, tell me.  If not, say so.
2012-04-08T03:03:03  * dekar is saying so
2012-04-08T03:03:20 < justitguy> dakar, okay get it and thanks for not trying to blow smoke.
2012-04-08T03:04:32 < justitguy> Thanks izua, yes I am an engineer ... actually do work with the STM32 and ship products.  Sorry if I offended you.
2012-04-08T03:13:02 <+dekar> justitguy, I don't see how that matters, I am a computer science student, I've also built a product based on the stm32 and it ships now: http://tinyurl.com/bm2xeub
2012-04-08T03:13:38 <+dekar> actually a lot of the people in this channel ship stm32 based products
2012-04-08T03:18:11 <+izua> we should really get that wiki going
2012-04-08T03:18:29 <+izua> at least for the free product exposure people would get heh
2012-04-08T03:26:38 < justitguy> very cool dekar.  Did you actually engineer this product>
2012-04-08T03:28:22 < justitguy> Did you select the chip, op sys, protocol stacks?  I will be very impresses when you show me that.
2012-04-08T03:28:58 <+dekar> justitguy, I selected the chip, wrote the firmware and usb drivers for windows, osx and linux yeah
2012-04-08T03:29:18 < justitguy> Very cool.  I should hire you.
2012-04-08T03:29:38 < justitguy> I will look into this further.
2012-04-08T03:29:45 <+dekar> I had help with the PCB though and I didn't design the casing
2012-04-08T03:31:10 < justitguy> You are not old enough to know much about PCB design.  But, you know what looks good and the enclosure is rather sexless but okay.
2012-04-08T03:32:09 <+dekar> justitguy, the PCB contains traces for 10G signals and I really don't know much about HF
2012-04-08T03:33:10 < justitguy> No fault. but not very sexy on a coffee table or with Onkio amps.  No way there are 10G sigs on that.  Only RF works there and that is a separate module.
2012-04-08T03:34:20 <+dekar> justitguy, what the heck do you mean? ofc there are 10G signals, it interfaces SFP+ and XFP transceivers
2012-04-08T03:34:57 <+dekar> justitguy, http://dl.dropbox.com/u/28467113/IMG_20120210_182844.jpg
2012-04-08T03:35:03 < justitguy> With an STM32.  Well show me, I am a disbeliever.
2012-04-08T03:35:15 <+dekar> not related to the stm32, I never said that
2012-04-08T03:35:29 <+dekar> but the board contains such traces for SMA connectors
2012-04-08T03:35:53 <+dekar> you can hook up external text equipment to it
2012-04-08T03:35:55 <+dekar> *test
2012-04-08T03:36:38 < justitguy> Yes, I am looking at the pic.  Says nothing about anything.
2012-04-08T03:37:07 <+dekar> you don't see the HF traces, are you blind?
2012-04-08T03:38:02 < justitguy> You linked an external box picture.  Guess you are blessed with x-ray I do not have.
2012-04-08T03:38:19 <+dekar> justitguy, http://www.altera.com/products/devkits/altera/kit-cyclone-iv-gx.html
2012-04-08T03:38:21 <+dekar> justitguy, http://www.altera.com/products/devkits/altera/kit-cyclone-iv-gx.html
2012-04-08T03:38:31 <+dekar> that's my fpga board I hook up to it
2012-04-08T03:38:37 <+dekar> I also linked the pcb btw
2012-04-08T03:38:44 < justitguy> got it.  Who is the project engineer on this?
2012-04-08T03:38:45 <+dekar> justitguy, http://dl.dropbox.com/u/28467113/IMG_20120210_182844.jpg
2012-04-08T03:39:01 <+dekar> it's my project
2012-04-08T03:39:27 <+dekar> see the SMA connectors now?
2012-04-08T03:39:32 < justitguy> You designed it and you could explain it in detail?
2012-04-08T03:39:40 <+dekar> just use your eyes, no need for X-ray
2012-04-08T03:39:40 < justitguy> Yep,
2012-04-08T03:39:47 < justitguy> see the gbic connector.
2012-04-08T03:39:56 <+dekar> there is no gbic on it
2012-04-08T03:40:00 <+dekar> just SFP+ and XFP
2012-04-08T03:40:04 <+dekar> and sure I could explain it
2012-04-08T03:40:37 < justitguy> No gbic, sorry that is SFP.  Perhaps I misspoke.
2012-04-08T03:40:59 <+dekar> yes you did
2012-04-08T03:41:01 -!- phantone is now known as phantoxe
2012-04-08T03:41:56 < justitguy> Can you explain and describe in detail the design, why you chose the FPGA, why you needed to use that particular FPGA, etc.?
2012-04-08T03:42:05 <+dekar> sure I can
2012-04-08T03:42:38 <+dekar> that's the cheapest FPGA I found to generate 10G signals, it connects via XAUI to a 10G ethernet PHY
2012-04-08T03:43:10 < justitguy> Did you code the FPGA in VHDL, Verilog or did you import RTL to the FPGA?  Why?
2012-04-08T03:44:20 <+dekar> so far I am using a transceiver test provided by altera, I will implement a VHDL bitstream later - the FPGA part is my next project
2012-04-08T03:45:12 <+dekar> it will become some sort of BERT, I will also evaluate several PHYs for features like the ability to generate EYE diagrams
2012-04-08T03:45:43 < justitguy> So, not your product?  Not a problem ... actually respect your "balls", just don't represent a design as yours when it is not.
2012-04-08T03:45:53 <+dekar> it is my product
2012-04-08T03:46:13 <+dekar> the flexbox2 is my project, in total
2012-04-08T03:46:19 < justitguy> From start to finish?  No IP in the FPGA not yours?
2012-04-08T03:46:31 <+dekar> I haven't even started with the FPGA
2012-04-08T03:46:45 <+dekar> I am still involved with the firmware and driver development
2012-04-08T03:46:59 <+dekar> we're releasing right now, I have to make sure everything goes fine
2012-04-08T03:47:20 <+dekar> doing so I have to support our application developers and their feature requests
2012-04-08T03:47:45 < justitguy> Then, I really respect what you may have done.  But, if you are using IP you don't understand, you know that could bit you in the a??, rigth?
2012-04-08T03:48:12 <+dekar> justitguy, I don't even know what you mean - and I don't think you understand my product
2012-04-08T03:48:32 <+dekar> the flexbox2 isn't about generating 10G signals, that's just an internal testing feature
2012-04-08T03:48:45 <+dekar> it is about programming SFP/XFP transceivers
2012-04-08T03:48:57 < justitguy> Perhaps dekar.  So, tell us all idiots, exactly what it is.
2012-04-08T03:49:07 <+dekar> just read the product page
2012-04-08T03:49:53 <+dekar> justitguy, http://www.flexoptix.net/flexbox-v2-transceiver-programmer.html
2012-04-08T03:49:55 < zyp> dekar, so what you are saying is that the functionality the FPGA will implement is not needed for the main features of the product, and therefore not implemented yet?
2012-04-08T03:50:04 <+dekar> zyp, yeah
2012-04-08T03:50:37 <+dekar> that's not a feature we sell, that will be internal testing equipment
2012-04-08T03:50:45 <+dekar> and it doesn't exist so far
2012-04-08T03:51:04 < justitguy> My german sucks, but now tht I have a link, I will try.  Who would benefit from this product?
2012-04-08T03:51:18 <+dekar> justitguy, the page is english as well
2012-04-08T03:51:45 < justitguy> K, will look
2012-04-08T03:51:47 <+dekar> justitguy, the product allows you to make your Extreme transceivers work in your Cisco switch
2012-04-08T03:52:03 <+dekar> basically that, for all brands
2012-04-08T03:52:36 <+dekar> it also allows you to change the wavelength of tunable transceivers
2012-04-08T03:52:46 <+dekar> and some other features
2012-04-08T03:53:05 <+dekar> the whole HF part is nothing we sell, we just wanted it for internal use
2012-04-08T03:53:07 < justitguy> dekar, home page sucks!  I cannot easily find a link for english.  If you need to explain it you already lost customers.
2012-04-08T03:53:36 <+dekar> justitguy, click the frickin flag at the top
2012-04-08T03:54:00 <+dekar> justitguy, also I don't care, I am not web-guy
2012-04-08T03:54:32 <+dekar> besides that I get paid regardless of how many people buy our products
2012-04-08T03:54:33 < justitguy> Is that a word in English/French?  Sorry, I was making a suggestion not condemnation.
2012-04-08T03:55:11 < justitguy> Then you are not the designer and you have no stake in this.  I understand now.
2012-04-08T03:55:26 <+dekar> justitguy, http://www.flexoptix.net/flexbox-v2-transceiver-programmer.html?___store=english&___from_store=english
2012-04-08T03:55:51 <+dekar> here you go
2012-04-08T03:56:08 <+dekar> though usually people find the flag to switch languages on their own
2012-04-08T03:56:58 < justitguy> Got it.  But, would really be better if the change were simple and not only designed for the dekars of the world.
2012-04-08T03:57:24 <+dekar> justitguy, it surely wasn't designed for me, I barely even use the site
2012-04-08T03:57:46 <+dekar> justitguy, if you have a complaint, just use the contact form and it will reach to our webdesigner
2012-04-08T03:58:00 <+dekar> or send a mail, the address is at the page
2012-04-08T03:58:07 < justitguy> Please, I am reading.  I might even want to buy, but you keep waking me up ... LOL
2012-04-08T03:58:08 < zyp> justitguy, I can also make suggestions, I suggest you change your attitude when talking to people, unless you actually want to come across as an asshole
2012-04-08T03:59:28 < justitguy> zyp, I am not being an A..Hole, I am only looking to see if I have a potential hire and see if the company knows how to market products.  Now zyp, what are you selling?
2012-04-08T03:59:58 < zyp> I'm not selling anything, I'm just making a suggestion
2012-04-08T04:00:02 <+dekar> justitguy, I don't believe the whole hiring story. actually you rather seem to be trolling
2012-04-08T04:00:19 < zyp> and I'm not saying what you are being, I'm just observing how you are coming across
2012-04-08T04:02:57 < justitguy> dekar, I can hire people.  You can believe that or not.  I can forward applications for the NSA in a heartbeat.  But, you must be a designer or principal architect.
2012-04-08T04:03:55 < justitguy>  zyp, I have no interest in anything but supporting the livlihood of really good people.  If you think otherwise, think that.
2012-04-08T04:04:35 < zyp> you don't get good people if you act like an asshole towards them
2012-04-08T04:04:50 <+dekar> yeah I rather stay at flexoptix :)
2012-04-08T04:05:26 <+dekar> the amount of flexibility I enjoy right now is hard to beat anyway
2012-04-08T04:05:29 < justitguy> I may be trolling, but ONLY for the very best.  I do also come here to look for answers from people who actually know something.  Perhaps that is a test, perhaps I am just stupid.
2012-04-08T04:05:30 < zyp> I'm not implying that I'm good or anything, but seeing how you treat people on this channel here, I don't really would like to work for you
2012-04-08T04:06:17 <+dekar> justitguy, sucks to be you then - do you like the flexBox2?
2012-04-08T04:06:45 < justitguy> zyp, the best people do more than complain!  The show silently.  dekar, I am still reading the specs.
2012-04-08T04:07:16 < justitguy> Why is the flexbox better than the Telegent box on my desk?
2012-04-08T04:07:33 <+dekar> justitguy, you're the one who complains "dekar, home page sucks!"
2012-04-08T04:07:52 < justitguy> dekar, stop bleeding.
2012-04-08T04:08:26 <+dekar> justitguy, whatever that telegent box is you have on your desk
2012-04-08T04:09:23 <+dekar> ours presents you a tidy webinterface allowing you to switch compatibility with many brands by the click of a button
2012-04-08T04:09:33 <+dekar> I am not aware of any products offering that
2012-04-08T04:11:10 < justitguy> I am tired playing boys.  But, I only look for the exemplary people who think independently, do not rely upon support of an autonomous community and can show (publish) results.
2012-04-08T04:11:20 < justitguy> dekar, you are correct.
2012-04-08T04:11:31 < justitguy> I do not have that.
2012-04-08T04:11:32 < zyp> *yawn*
2012-04-08T04:12:14 < justitguy> zyp, go to sleep ... wake up tomorrow smarter, wiser and better than you were ... perhaps.
2012-04-08T04:12:34 < Tom_itx> how long has the stm32F4 discovery board been out?
2012-04-08T04:12:35 < zyp> I'm about to, it's past 3am and I'm already in the bed at the hotel
2012-04-08T04:13:16 <+dekar> justitguy, http://www.flexoptix.net/flexconnect/
2012-04-08T04:13:21 < Tom_itx> gawd this channel has gone to the shitter in record time. even quicker than electronics
2012-04-08T04:13:31 <+dekar> that's our software to use the hardware I've developed
2012-04-08T04:15:33 < justitguy> Tom_itx, don't have an STM4xx board.  Most people here want to assert the "bigger dick" theory than fact or answers.  You might be best served by reading the specifications/app notes from STM and others.
2012-04-08T04:15:56 < Tom_itx> it was more of a timeline i was after
2012-04-08T04:15:56 < zyp> justitguy, you clearly have the biggest dick here though
2012-04-08T04:16:16 <+dekar> justitguy, http://www.youtube.com/watch?v=oOuTA7SbvH4
2012-04-08T04:16:26 <+dekar> I just realized we have a youtube video explaining the product
2012-04-08T04:16:35 < justitguy> Yep, and I read/design and do not constrain myself to my mommy's tit.
2012-04-08T04:16:49 <+dekar> if someone wants him banned, just tell me
2012-04-08T04:17:12 < Tom_itx> i think it was going downhill before he started spouting off
2012-04-08T04:17:56 < justitguy> Go for it dakar.  I know that children should be indulged (according to Dr. Spock).
2012-04-08T04:18:30 < Tom_itx> dekar, he's practically begging you
2012-04-08T04:18:40 <+izua> Tom_itx: why - don't you like hot peppers? :)
2012-04-08T04:19:07 <+dekar>  I can really recommend Fatalii, best pepper ever :)
2012-04-08T04:19:07 < justitguy> No Tom_itx I am not.  I only want the conversation to be about the STM.
2012-04-08T04:19:33 < Tom_itx> i could care less what you talk about here, i'm not an op. but i've observed a degredation here
2012-04-08T04:20:04 < justitguy> So, Tom_itx I agree to a "reset".  Is that agreed by all?
2012-04-08T04:20:38 < Tom_itx> somebody needs to steer the ship if the captain has jumped overboard
2012-04-08T04:20:59 <+dekar> who is the captain anyway?
2012-04-08T04:21:13 < Tom_itx> izua
2012-04-08T04:21:29 <+izua> it's a public channel about a rather public product.
2012-04-08T04:21:33 <+dekar> and why did he jump overboard?
2012-04-08T04:21:43 < Tom_itx> -ChanServ- 1     izua                   +vVotsriRfAF [modified 40 weeks, 4 days, 00:11:06 ago]
2012-04-08T04:21:43 < Tom_itx> -ChanServ- 2     Steffanx               +Vo [modified 11 weeks, 3 days, 00:18:51 ago]
2012-04-08T04:21:43 < Tom_itx> -ChanServ- 3     dekar                  +Vo [modified 11 weeks, 3 days, 00:18:47 ago]
2012-04-08T04:22:33 < justitguy> Tom_itx, in my job usually I do for some 600+ people.  Now I just want help with interesting issues with the STM32 and if anyone has experience with them.
2012-04-08T04:23:48 <+dekar> justitguy, yeah well - no one responded last time you explained your problem… just saying
2012-04-08T04:24:09 -!- mode/##stm32 [+o izua] by ChanServ
2012-04-08T04:24:09 < justitguy> dekar, you are welcome.
2012-04-08T04:24:16 -!- mode/##stm32 [+b *!*@*.socal.res.rr.com] by izua
2012-04-08T04:24:18 <@izua> dekar, anytime.
2012-04-08T04:24:22 -!- mode/##stm32 [-o izua] by izua
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2012-04-08T04:24:25 <+dekar> thanks :)
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2012-04-08T04:24:57 < Tom_itx> :)
2012-04-08T04:25:13 <+izua> what kind of troll gives up that easy?
2012-04-08T04:25:41 <+dekar> Tom_itx, that's for the new channel, isn't it?
2012-04-08T04:25:52 < zyp> then I guess tonight's show is over, have a good night all.
2012-04-08T04:25:58 <+dekar> I feel like #stm32 was older than 40 weeks
2012-04-08T04:26:04 <+izua> ah
2012-04-08T04:26:15 <+izua> we moved over almost a year ago.. :)
2012-04-08T04:26:33 <+dekar> izua and I were alone in #stm32 for ages
2012-04-08T04:26:35 <+izua> steffanx being ocd-ish about freenode's policy and such
2012-04-08T04:28:48 <+dekar> zlog,
2012-04-08T04:28:48 < zlog> dekar: Log stored at http://tom-itx.dyndns.org:81/~tom-itx/irc/logs/%23%23stm32/2012-04-07.html
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2012-04-08T04:29:52 < zyp> nsachat, that's cute
2012-04-08T04:30:11 < nsachat> Hi all!
2012-04-08T04:30:18 <+dekar> welcome back
2012-04-08T04:30:42 <+izua> wb
2012-04-08T04:30:48 < zyp> you missed us so much that you had to evade the ban?
2012-04-08T04:31:10 < nsachat> Anyone know about using NAND flash on the bus with ECC?
2012-04-08T04:31:14 <+izua> he took the time to get through the webchat, since that changes your hostmask.
2012-04-08T04:31:55 <+dekar> nsachat, nothing new? you're not even trying?
2012-04-08T04:33:32 < nsachat> Guess you think the channel is about you?  So, are you here to exert your little control or to solve problems for people?
2012-04-08T04:34:18 < nsachat> dakar, if I tried, I would have you arrested for a terrorist.  Don't even go there.
2012-04-08T04:34:21 < Tom_itx> haha reminds me of flyback
2012-04-08T04:34:25 <+izua> oh god
2012-04-08T04:34:36 <+dekar> lol
2012-04-08T04:34:47 <+dekar> I would love to see you getting me arrested
2012-04-08T04:34:48 <+izua> nah, at least flyback is sort of entertaining.
2012-04-08T04:34:53 <+dekar> XD
2012-04-08T04:35:04 < Tom_itx> he's ok when he's on his meds
2012-04-08T04:35:17 < Tom_itx> maybe he should share em
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2012-04-08T04:36:45 < nsachat> I am not on my cancer meds now.  My mom just died, my brother is on his deathbed.  I pay all the bills.  What do you do for your family or others assholes?  To to tune of $2000 per day US?
2012-04-08T04:37:04 -!- mode/##stm32 [+o dekar] by ChanServ
2012-04-08T04:37:19 -!- nsachat was kicked from ##stm32 by dekar [nsachat]
2012-04-08T04:37:55 < emeb> goodness... where does all that come from?
2012-04-08T04:38:02 -!- mode/##stm32 [-o dekar] by ChanServ
2012-04-08T04:38:02 <+izua> /mode +b *!*@*.76.169.33.142
2012-04-08T04:38:04 <+izua> etc
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2012-04-08T04:38:14 <+izua> 10 bucks says he's coming back
2012-04-08T04:38:27 < Tom_itx> who?
2012-04-08T04:38:40 < emeb> so many to choose from!
2012-04-08T04:38:42 <+izua> guess who took the turn to poke the troll
2012-04-08T04:40:32 < emeb> Anybody ever use the FSMC?
2012-04-08T04:41:13 <+izua> i don't know anyone who messed with an f4 at the very least.
2012-04-08T04:41:39 <+dekar> I felt like using SRAM with FSMC, but I got no board with SRAM and it wasn't relevant for my product anyway :/
2012-04-08T04:42:13 < emeb> Looks like if you want to use the FSMC without muxed Addr/Data you need a 144-pin part.
2012-04-08T04:42:32 < emeb> on 100-pin parts you can only get the lower 16 bits Addr muxed on the data lines
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2012-04-08T04:46:31 <+dekar> speaking of BGA, our EE guy showed me how to do BGA fan out using the altium autorouter, that's actually quite handy :)
2012-04-08T04:47:14 <+izua> i think the 144 pin chips also come in tqfp versions
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2012-04-08T04:48:20 <+dekar> hm maybe, but the 100pin package we have on the flexbox is incredibly huge already :/
2012-04-08T04:48:34 < emeb> yeah - that's my complaint.
2012-04-08T04:48:42 < emeb> didn't want to go bigger than 100
2012-04-08T04:48:58 < emeb> plus, FSMC can't do DRAM of any kind.
2012-04-08T04:49:15 <+izua> emeb: do you go the low cost/diy way? home made/cheap pcbs / avoiding bga work/multilayer unless necessary, etc?
2012-04-08T04:49:29 < emeb> Pretty much.
2012-04-08T04:49:35 < emeb> Try to keep it at 2 layers
2012-04-08T04:49:47 <+izua> heh
2012-04-08T04:50:33 <+izua> i've been messing some time ago with diy pcbs and tqfp100/e=0.5mm chips
2012-04-08T04:50:56 < emeb> So far we use BatchPCB for early prototypes and then go with direct Chinese mfg for production.
2012-04-08T04:50:57 <+izua> pcb house grade boards seem to be the only option
2012-04-08T04:51:34 < emeb> but contract assembly is done locally in the US.
2012-04-08T04:53:05 < emeb> Looking at an app that would need lots of external RAM. Considering an FPGA + SDRAM hooked to muxed FSMC.
2012-04-08T04:53:24 < emeb> SDRAM controller in the FPGA natch...
2012-04-08T04:55:06 < curious2listen> emeb, do you have a design for the SDRAM controller, or is this actaully designed from the "ground up"
2012-04-08T04:55:19 <+dekar> emeb, why does it have to be an stm32?
2012-04-08T04:56:19 < curious2listen> dekar, i think he was looking to add external SDRAM as his project needed it?
2012-04-08T04:58:04 <+dekar> but wouldn't it be better to pick a micro with DRAM support and maybe even MMU for such a task?
2012-04-08T04:58:45 <+izua> or yet, an fpga?
2012-04-08T04:58:55 <+dekar> adding an FPGA/CPLD sounds like too much work
2012-04-08T04:59:01 <+izua> heh
2012-04-08T04:59:14 <+izua> a cpld could barely hold an address register :D
2012-04-08T04:59:42 <+izua> but yeah, also, way too expensive.
2012-04-08T05:00:05 <+dekar> that micro looks interesting: http://search.digikey.com/us/en/products/LPC3130FET180,551/568-4696-ND/1993201
2012-04-08T05:00:06 < alsorecorder> I have used cpld's and they can ghave lots of logic.  Chepa tii,
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2012-04-08T05:01:29 < alsorecorder> Eze to add external ram.  have an idea for sdram?
2012-04-08T05:03:57 < alsorecorder> emb, semz most ppl here r more inresting in theirselves not helping, si maybe major to view elsewise.
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2012-04-08T05:14:02 < emeb> back...
2012-04-08T05:14:33 < emeb> already have a design for an SDRAM controller in FPGA.
2012-04-08T05:14:59 <+izua> emeb: what's your project? i'm curious what would require lots of ram, albeit not a mmu, but it's still small enough that an fpga doesn't really make sense (yet?)
2012-04-08T05:15:02 < emeb> dekar: doesn't have to be STM32, but I'd like Cortex M4 + FPU, or equivalent.
2012-04-08T05:15:29 < emeb> izua: this is an audio effects application.
2012-04-08T05:16:08 < emeb> I've already looked at ADI Blackfin, TI TMS320C550x, etc.
2012-04-08T05:16:40 < emeb> Prefer something with lower barriers to entry (tool costs for those DSPs are pretty high)
2012-04-08T05:17:47 < emeb> Unfortunately, the on M4 parts that support DRAM are NXP LPC43xx and Freescale Kinetix 60/70.
2012-04-08T05:17:57 < emeb> and those have lots of downsides.
2012-04-08T05:19:03 <+izua> microchip has some "dsp" chips, the dspic family, but i'm pretty sure they aren't even close to an f4
2012-04-08T05:19:11 <+izua> flyback-: really? what chip?
2012-04-08T05:19:39 <+izua> what's the name of the ic
2012-04-08T05:19:49 <+izua> with whatever's around the m0
2012-04-08T05:20:03 <+izua> er, i mean part name, ofc :)
2012-04-08T05:20:32 < emeb> izua: already using the MCHP dsPIC parts in shipping products.
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2012-04-08T05:22:30 <+izua> ah. so they are toys, and you're upgrading :)
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2012-04-08T05:24:19 < emeb> izua: not toys - very capable for a certain subset of what I want to do.
2012-04-08T05:24:30 < emeb> but yes, looking for some additional horsepower.
2012-04-08T05:25:01 <+izua> are you into dsp and audio effects?
2012-04-08T05:25:13 < emeb> izua: very much so.
2012-04-08T05:25:29 <+izua> i've been looking for quite some time to understand how the 'big players' (think NI, Vox, Boss - gt series) model distorsion and cab effects
2012-04-08T05:25:47 < emeb> that's definitely "Dark Arts"
2012-04-08T05:25:52 <+izua> there's obviously little to no info on the web. would you happen to have any pointers? :)
2012-04-08T05:25:56 <+izua> ah, of course
2012-04-08T05:26:51 < emeb> If I was starting from scratch, I'd trawl the archives at dafx: http://www.dafx.de/
2012-04-08T05:34:02 <+izua> i've been skipping through another book of zolzer's recently - digital audio signal processing
2012-04-08T05:34:14 <+izua> thanks for the great reference.
2012-04-08T05:34:29 < emeb> izua: sure. lots of good stuff there.
2012-04-08T05:36:29 <+izua> i've been having the crazy thought of actually disassembling NI's guitar rig at some point, but given the fancy, almost scene-like ui, and exceptional code, i'm think it will also have some anti debugging tricks, maybe even mutating code
2012-04-08T05:37:06 <+izua> but the thought of a high-quality, open source guitar multifx always had me thinking :)
2012-04-08T05:38:44 < emeb> It gets interesting when you're researching, coding and tuning an effect. I'd rather design my own than rev. engr someone elses.
2012-04-08T05:39:19 < emeb> There are some good low level pointers here too: http://www.spinsemi.com/knowledge_base.html
2012-04-08T05:39:53 < emeb> granted - focused on a very strange processor, but I've been able to apply the concepts to more conventional parts.
2012-04-08T05:40:08 <+izua> my only experience with dsp is limited to filtering adc inputs (heh) and after a very tough night, goertzel on dtmf, implemented from scratch.
2012-04-08T05:40:21 < emeb> That's a good start.
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2012-04-08T06:01:45 < dongs> http://www.uavrotorking.com/wp-content/uploads/2012/04/skyline.jpg discuss
2012-04-08T06:02:34 < emeb> Cute!
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2012-04-08T08:29:12 < dongs> man, FeiyuTech is sneaky
2012-04-08T08:29:17 < dongs> they disable jtag on power up :(
2012-04-08T08:37:45 < dongs> oh well, full erase it is.
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2012-04-08T10:00:19 < dongs> whatever dude.
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2012-04-08T13:57:23 < dongs> wtf. my adc scan command is failing
2012-04-08T14:12:50 < Thorn> let me guess, there's no adc on your chip? :p
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2012-04-08T14:41:36 < dongs> haha
2012-04-08T14:42:04 < dongs> i setup 9 channels for continuous dma conversion but im only getting data in first 16bits
2012-04-08T14:42:08 < dongs> and the rest is 0.
2012-04-08T14:42:45 <+Steffanx> uh?
2012-04-08T14:43:27 < dongs> http://bcas.tv/paste/results/VhEwwZ43.html anything obvious i missed?
2012-04-08T14:43:59 < dongs> oops.
2012-04-08T14:44:02 < dongs> yes.
2012-04-08T14:44:06 < dongs> memoryinc
2012-04-08T14:44:38 < dongs> yep all good now
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2012-04-08T20:33:51 <+jpa-> gah.. when a controller has 3 SPI modules free, who the heck routes SPI pins to GPIO and does bitbang :F
2012-04-08T20:34:18 <+jpa-> oops, just 2 SPI modules free; but anyway
2012-04-08T20:34:31 < zyp> stupid people
2012-04-08T20:34:56 <+jpa-> apparently
2012-04-08T20:35:26 <+jpa-> maybe they thought bitbanging was easier than learning to use the spi module
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2012-04-08T22:09:31 < Laurenceb_> is there a usb DFU bootloader on the f103 devices?
2012-04-08T22:09:53 < zyp> no.
2012-04-08T22:10:02 < Laurenceb_>  n :(
2012-04-08T22:10:11 <+jpa-> not built-in, but IIRC st has some appnote about software implementing that
2012-04-08T22:10:21 < Laurenceb_> yeah - maple does that
2012-04-08T22:10:46 < Laurenceb_> how is the "pro" way to do usb dfu?
2012-04-08T22:10:58 < Laurenceb_> i mean so the user doesnt have to press reste buttons
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2012-04-08T22:11:25 < zyp> implement a command to reboot into bootloader?
2012-04-08T22:12:49 < Laurenceb_> sure
2012-04-08T22:13:01 < Laurenceb_> but its still not brilliant
2012-04-08T22:13:11 < Laurenceb_> isnt dfu built into windoze?
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2012-04-08T22:13:41 < Laurenceb_> cant you update device firmware somewhere?
2012-04-08T22:13:45 < Laurenceb_> at least on xp
2012-04-08T22:14:19 <+jpa-> never heard about such functionality
2012-04-08T22:14:27 <+jpa-> some DFU firmwares also expose a flash disc
2012-04-08T22:16:08 < Laurenceb_> ok
2012-04-08T22:16:27 < Laurenceb_> maybe i could have a sequence of button pressed
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2012-04-08T22:32:56 < TeknoJuce> Dad flyback bit my finger thats not nice flyback!
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2012-04-08T22:36:19 < TeknoJuce> Guess I should identify
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2012-04-08T22:37:34 < Laurenceb_> ##stm32 also know as #freaks
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2012-04-09T12:09:54 <+Steffanx> nu
2012-04-09T12:10:40 <+jpa-> nuu
2012-04-09T12:11:15 <+Steffanx> In Finnish everything needs more characters, indeed :P
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2012-04-09T12:57:24 < zyp> ei saa peittää
2012-04-09T12:58:13 <+Steffanx> uh zyp ?
2012-04-09T12:58:52 <+jpa-> http://kapsi.fi/~jpa/stuff/pix/alapeita.jpg
2012-04-09T12:59:21 <+Steffanx> Google translate failure.. google translates that as "do not cover"
2012-04-09T12:59:34 <+jpa-> nah google translate success :)
2012-04-09T12:59:46 <+Steffanx> but to dutch it get's translated to "bedek" ("cover" in english)
2012-04-09T13:00:21 <+jpa-> it's a thin line between "cover" and "do not cover"
2012-04-09T13:00:59 <+Steffanx> uh?
2012-04-09T13:01:14 <+Steffanx> zlog
2012-04-09T13:01:14 < zlog> Steffanx: Log stored at http://tom-itx.dyndns.org:81/~tom-itx/irc/logs/%23%23stm32/2012-04-09.html
2012-04-09T13:01:43 <+Steffanx> What is that jpa- ?
2012-04-09T13:01:49 <+Steffanx> Computer/server?
2012-04-09T13:01:59 < BrainDamage> an electric heater
2012-04-09T13:02:04 <+Steffanx> Ah
2012-04-09T13:02:21 <+Steffanx> A computer is an electric heater too
2012-04-09T13:02:52 < BrainDamage> sure, but a dedicated one is capable of more power sustained
2012-04-09T13:03:09 < BrainDamage> also, it can do trough natural convection vs forced, so it's more silent
2012-04-09T13:03:12 < BrainDamage> also, costs less
2012-04-09T13:03:37 <+Steffanx> more silent? My electrical heater is quiet noisy
2012-04-09T13:03:46 <+jpa-> also, great for warming blankets
2012-04-09T13:03:57 < zyp> «ei saa peittää» is pretty much the only known finnish sentence known to norwegian people
2012-04-09T13:04:46 < zyp> because it's printed on a lot of electric heaters along with «do not cover» «må ikke tildekkes» and so on
2012-04-09T13:06:28 <+Steffanx> "Niet bedekken" and not "Bedek" :P
2012-04-09T13:06:50 <+jpa-> similarly, "får ej övertackas" is very well known phrase in finland :)
2012-04-09T13:07:33 <+Steffanx> övertäckas :)
2012-04-09T13:08:15 <+jpa-> wait, Steffanx speaks swedish now?
2012-04-09T13:08:25 <+Steffanx> Google is powa
2012-04-09T13:08:39 <+jpa-> kanske vi börje tala bara svenska eller skandinaviska på ##stm32 nu
2012-04-09T13:08:50 <+Steffanx> knowlegde is power too, so google = power :)
2012-04-09T13:09:09 <+Steffanx> Anyway, google translate also fails at translating that
2012-04-09T13:09:30 < zyp> but I understood it just fine
2012-04-09T13:10:16 <+Steffanx> Me too, but the translation is just wrong
2012-04-09T13:11:07 <+jpa-> jag har inte talat mycket svenska efter gymnasiet, därför några ord är fel
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2012-04-09T13:11:32 <+Steffanx> They teach you Swedish in finland?
2012-04-09T13:11:40 <+jpa-> förstås
2012-04-09T13:12:20 <+jpa-> it's a legal requirement :F
2012-04-09T13:12:24 <+Steffanx> I though swedish was closer to dutch than any other Scandinavian language, but i guess i was wrong
2012-04-09T13:13:11 <+jpa-> nah, written danish/norwegian/swedish are almost the same
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2012-04-09T15:40:06  * Laurenceb fails
2012-04-09T15:40:17 < Laurenceb> wondered why my spectrometer is so noisy
2012-04-09T15:40:26 < Laurenceb> i ran the leds of the digital rail
2012-04-09T15:43:36 <+Steffanx> uh?
2012-04-09T15:45:18 < Laurenceb> well im using leds to illuminate the sample
2012-04-09T15:45:35 < Laurenceb> so if the led power isnt clean then the detected singal wont be either
2012-04-09T15:50:48 <+jpa-> heh :)
2012-04-09T15:51:27 <+jpa-> probably difficult to measure also, as you'll have all kinds of noise from the leds, but as long as it is on orthogonal frequencies it doesn't matter :)
2012-04-09T15:52:06 < Laurenceb> yeah but if the led output power fluctuates then so will my demodulated signal
2012-04-09T15:52:19 < Laurenceb> atm i have about 40lsb rms noise with no leds
2012-04-09T15:53:11 < Laurenceb> then random noise that increases in proportion to the led intensity - about 0.5% of the demodulated signal
2012-04-09T15:53:39 < Laurenceb> so at i effectively have 21bits after demodulation
2012-04-09T15:54:08 < Laurenceb> if i fixed the led noise id have about 16bit of effective resolution on the absorbtion
2012-04-09T15:54:16 < Laurenceb> s/at/as
2012-04-09T15:54:52 < Laurenceb> atm its about 7 or 8 bits :/
2012-04-09T16:24:52 <+Steffanx> How is it going with that boat of you jpa- ?
2012-04-09T16:26:00 <+jpa-> Steffanx: ah, that boat hasn't been going anywhere for a while :)
2012-04-09T16:26:05 <+Steffanx> :(
2012-04-09T16:27:12 <+jpa-> though i have been doing a few parts in other projects that will be useful if i ever decide to finish that boat
2012-04-09T16:27:20 <+jpa-> the hull is still sitting on my desk :P
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2012-04-09T16:47:32 <+Steffanx> auzi :)
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2012-04-09T17:04:51 < auzi> xnaffetS: :)
2012-04-09T17:05:24 <+Steffanx> Hard to auto-complete that nick isn't it?
2012-04-09T17:10:13 < auzi> you wouldn't guess :P
2012-04-09T17:10:35 <+Steffanx> It's hard
2012-04-09T17:12:49 < auzi> that's what she said
2012-04-09T17:13:13 <+Steffanx> When?
2012-04-09T17:13:49 < auzi> or better yet - who
2012-04-09T17:15:04 < auzi> hm. i need to figure out a neat project idea for my college degree, but i can't think of anything worthwhile/interesting
2012-04-09T17:15:22 <+Steffanx> me had the same problem
2012-04-09T17:15:36 < auzi> /
2012-04-09T17:16:13 < auzi> so the anemometer was the 'final' one? i thought it was just a generic project, for a class or so
2012-04-09T17:22:39 <+Steffanx> Yes, no
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2012-04-09T17:53:20 < Laurenceb> measuring emos is a plan i guess
2012-04-09T17:54:07 < zyp> that's the worst pun I've heard today
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2012-04-09T18:03:19 < BrainDamage> I guess you should appunt him a medal for that!
2012-04-09T18:03:44 < BrainDamage> ( it's always fun to lower the average joke quality )
2012-04-09T18:04:16 <+Steffanx> In this case that results in a 'underflow' BrainDamage :P
2012-04-09T18:05:13 < Laurenceb> airspeed measuremeasuremeasuremeasure
2012-04-09T18:05:48 <+Steffanx> uhm?
2012-04-09T18:05:57 < Laurenceb> wut
2012-04-09T18:05:59 < Laurenceb> oops
2012-04-09T18:07:21 <+Steffanx> oops wrong channel?
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2012-04-09T19:22:50 < Laurenceb> how do i know if .noinit is defined?
2012-04-09T19:23:06 < Laurenceb> i dont see in any of my linker scripts
2012-04-09T19:24:33 <+jpa-> what is .noinit?
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2012-04-09T19:25:29 < Laurenceb> non initialised variables
2012-04-09T19:26:36 < zyp> which compiler emits that?
2012-04-09T19:27:11 < Laurenceb> gcc
2012-04-09T19:28:26 < zyp> for what? all globals in C are default-initialized to zero by spec and thus placed in .bss
2012-04-09T19:29:19 < Laurenceb> nope
2012-04-09T19:29:48 < Laurenceb>  __attribute__ (section(".noinit"));
2012-04-09T19:30:25 < Laurenceb> theres lots of different sections
2012-04-09T19:30:57 < zyp> well, if you're using the section attribute you're making up your own section and can use it as you wish
2012-04-09T19:31:07 < Laurenceb> hmm
2012-04-09T19:31:22 < Laurenceb> yeah maybe i need to edit the linker script
2012-04-09T19:31:25 < zyp> like the one you use to place the vector table at the start of the flash
2012-04-09T19:31:25 < Laurenceb> annoying
2012-04-09T19:31:33 < Laurenceb> it compiles fine
2012-04-09T19:31:42 < Laurenceb> but i dont see how it can work atm
2012-04-09T19:31:46 < Laurenceb> -havent tested
2012-04-09T19:32:15 < Laurenceb> can sections overlap?
2012-04-09T19:32:49 < Laurenceb> hmm im confused
2012-04-09T19:32:57 < Laurenceb> guess ill read the avr-gcc documentation
2012-04-09T19:33:04 < Laurenceb> they handle all this well
2012-04-09T19:33:06 < Laurenceb> bbl
2012-04-09T19:33:22 < dongs> wut
2012-04-09T19:33:24 < dongs> dude
2012-04-09T19:33:30 < zyp> I don't think there is anything preventing you from crafting an ELF with overlapping sections, but I don't know if you'll get the linker to do that
2012-04-09T19:33:45 < zyp> and I don't see why you'll want to either
2012-04-09T19:33:49 < dongs> just do uint8_t *blog = (uint8_t *)0xwhateveraddressinram;
2012-04-09T19:35:08 < zyp> Laurenceb, either way, if you want to use .noinit you'll have to make a section in the linker script for it, simple as that
2012-04-09T19:35:46 < zyp> it should be pretty similar to .bss except that you don't have to zero-initialize it
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--- Day changed Tue Apr 10 2012
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2012-04-10T00:59:39 < Laurenceb_> is it possible to switch execution to ram at runtime?
2012-04-10T01:07:08 <+izua> uh, copy to ram, set a function pointer, call it?
2012-04-10T01:15:32 < zyp> correct
2012-04-10T01:16:35 < Laurenceb_> ah simple
2012-04-10T01:17:28 < Laurenceb_> was thinking about bootloaders, the really simple way would just be to stick the .bin on an sd card
2012-04-10T01:18:08 < zyp> sure, nothing prohibits you from doing that
2012-04-10T01:18:29 < Laurenceb_> itd need to copy the loa dfunction to ram
2012-04-10T01:18:43 < Laurenceb_> then switch to ram, copy the data to flash then reboot right?
2012-04-10T01:18:57 < zyp> no.
2012-04-10T01:19:10 < Laurenceb_> why?
2012-04-10T01:19:18 < zyp> it could run the load function from flash, load the application into ram, then call ram directly
2012-04-10T01:19:35 < Laurenceb_> application is _way_ larger than ram
2012-04-10T01:19:41 < Laurenceb_> itd be an entire firmware update
2012-04-10T01:19:46 < Laurenceb_> up to 128KB
2012-04-10T01:19:54 < zyp> then it won't work
2012-04-10T01:19:59 < Laurenceb_> ram would fit fatfs
2012-04-10T01:20:49 < Laurenceb_> - the firmware would have the ram code on the end
2012-04-10T01:21:03 < zyp> either way, unless you want to overwrite the loader itself, there is no point in copying it to ram
2012-04-10T01:21:17 < Laurenceb_> hmmm
2012-04-10T01:21:29 < Laurenceb_> ok yeah i guess if it always lives at the top of flash
2012-04-10T01:21:36 < Laurenceb_> theres never any need to overwrite it
2012-04-10T01:21:42 < zyp> or bottom.
2012-04-10T01:21:46 < Laurenceb_> oh yeah
2012-04-10T01:21:51 < Laurenceb_> ill read the maple stuff
2012-04-10T01:21:56 < Laurenceb_> thats now they do it
2012-04-10T01:22:25 < zyp> either way, upgrading the loader from the loader itself is the most common way of making stuff brickable
2012-04-10T01:22:56 < zyp> because if that fails, you don't have a loader anymore
2012-04-10T01:23:53 < zyp> having the ability in itself is not bad, but doing it along with every firmware upgrade is pretty stupid
2012-04-10T01:26:54 < Laurenceb_> yeah
2012-04-10T01:27:33 < Laurenceb_> fatfs is small on stm32
2012-04-10T01:28:02 < Laurenceb_> i could have completely separate code
2012-04-10T01:28:25 < Laurenceb_> in fact i could slim it down to 2KB
2012-04-10T01:28:34 < Laurenceb_> http://elm-chan.org/fsw/ff/en/appnote.html
2012-04-10T01:29:15  * Laurenceb_ zzz
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2012-04-10T15:29:40 < Laurenceb> anyone here used maple ide?
2012-04-10T15:29:48 < Laurenceb> i cant find the linker scripts or anything
2012-04-10T15:35:55 < Laurenceb> oh its in hardware nvm
2012-04-10T15:35:58 < Laurenceb> so confusing
2012-04-10T15:36:04 < Laurenceb> its firmware not hardware
2012-04-10T15:37:47 < dongs> maple is filth
2012-04-10T15:42:34 < Laurenceb> lol
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2012-04-10T17:38:42 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/blob/master/lib/lanchon-stm32-rom.ld#L150
2012-04-10T17:40:36 < Thorn> why AT>rom ?
2012-04-10T17:41:50 < Laurenceb> it cant overflow into rom?
2012-04-10T17:41:57 < Laurenceb> im not sure thats copied from lanchon
2012-04-10T17:42:18 < Laurenceb> ive added a noinit section that seems to work
2012-04-10T17:44:16 < Thorn> that makes sense for .data because you copy its contents from rom to ram at startup, but .noinit is by definition not initialized
2012-04-10T17:44:20 < Thorn> same thing for .bss
2012-04-10T17:44:27 < Thorn> you just waste flash like that
2012-04-10T17:47:28 < Laurenceb> no
2012-04-10T17:47:33 < Laurenceb> bss is set to zero
2012-04-10T17:47:40 < Laurenceb> theres an asm loop in startup
2012-04-10T17:48:23 < Laurenceb> bss != noinit
2012-04-10T17:48:25 < Thorn> but you don't need to allocate room for it in flash to zeroize it at startup right?
2012-04-10T17:48:31 < Laurenceb> no
2012-04-10T17:48:38 < Laurenceb> zero is done with an asm loop
2012-04-10T17:48:44 < Laurenceb> noinit is not initialised
2012-04-10T17:48:54 < Laurenceb> so you can use it for interesting things
2012-04-10T17:49:01 < Thorn> therefore AT is only needed for .data
2012-04-10T17:49:18 < Laurenceb> oh
2012-04-10T17:49:25 < Laurenceb> AT means its in flash?
2012-04-10T17:50:09 < Laurenceb> grr who wrote this
2012-04-10T17:50:54 < Thorn> http://www.math.utah.edu/docs/info/ld_3.html#SEC18
2012-04-10T17:51:27 < Laurenceb> thanks
2012-04-10T17:52:05 < Laurenceb> so AT means there is a rom image
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2012-04-10T17:54:19 < Thorn> it basically means "place this section at a different address, I'll copy it to the correct one myself"
2012-04-10T17:55:07 < Thorn> note they don't use AT for .bss in the example
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2012-04-10T18:04:30 < Laurenceb> doesw it actually do anything without appropriate startup code?
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2012-04-10T18:06:43 < Thorn> you mean AT?
2012-04-10T18:06:53 < Laurenceb> yes
2012-04-10T18:07:19 < Thorn> it just changes the load address of a section
2012-04-10T18:07:55 < Thorn> (but not any references to symbols in it)
2012-04-10T18:08:35 < Laurenceb> so youd have to put actual load code in the startup?
2012-04-10T18:08:45 < Laurenceb> arm it has a loop to copy zeros over bss
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2012-04-10T18:10:08 < Thorn> you'll need to copy that section to the right place before using it
2012-04-10T18:10:27 < Laurenceb> if i rebuild without the AT i see no difference in the binary
2012-04-10T18:13:23 < Thorn> try placing .text in ram AT>rom :)
2012-04-10T18:13:51 < Thorn> all the addresses will be wrong
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2012-04-10T18:35:06 < Laurenceb> now i just need to know why it keeps botting from sleep every 3 seconds
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2012-04-10T18:37:24 < Laurenceb> oh watchdog reset
2012-04-10T18:37:33 <+Steffanx> nu
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2012-04-10T18:52:48 < Laurenceb> wtf...
2012-04-10T18:52:57 < Laurenceb> how do you disable watchdog?
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2012-04-10T18:55:26 < Laurenceb> oh you dont
2012-04-10T18:55:29 < Laurenceb> annoying
2012-04-10T19:03:29 <+Steffanx> zlog
2012-04-10T19:03:29 < zlog> Steffanx: Log stored at http://tom-itx.dyndns.org:81/~tom-itx/irc/logs/%23%23stm32/2012-04-10.html
2012-04-10T19:04:09 <+Steffanx> lol, dongs can you say something positive?
2012-04-10T19:04:46 < Thorn> like anode?
2012-04-10T19:05:20 <+Steffanx> No, not like that
2012-04-10T19:09:44 <+Steffanx> More like the negated version of "Maple: Filth" "Raspberry Pi: Crap, shit blablabla" Thorn :)
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2012-04-10T19:13:36 <+Steffanx> dekar !
2012-04-10T19:13:46 <+Steffanx> Played with that elua stuff yet?
2012-04-10T19:21:26 < dongs> STM32-blogger
2012-04-10T19:23:07 <+Steffanx> Yes yes dongs ?
2012-04-10T19:24:09 < Thorn> dave jones got a free efm32 dev kit. he doesn't even use arm or appreciate it, it's not fair x_x
2012-04-10T19:24:31 <+Steffanx> Just ignore that guy :P
2012-04-10T19:25:06 < emeb> which dave jones - there are so many
2012-04-10T19:25:50 <+Steffanx> The aussie
2012-04-10T19:26:06 <+Steffanx> eevblog
2012-04-10T19:26:25 <+Steffanx> Annoying voice
2012-04-10T19:26:30 < emeb> Heh
2012-04-10T19:26:30 <+Steffanx> Hyper active
2012-04-10T19:26:36 <+Steffanx> Need more hints ?
2012-04-10T19:26:50 < emeb> Need to catch up on his posts - been a while.
2012-04-10T19:27:10 < emeb> Every now and then he has something interesting/useful. Mostly hot air though.
2012-04-10T19:28:09 < dongs> sounds like a typical blogger shithead.
2012-04-10T19:29:21 <+Steffanx> dongs and now something positive?
2012-04-10T19:29:35 < Thorn> dongs: say "anode"
2012-04-10T19:30:54 < emeb> Hilarious fact: The picturesque town of Sedona, Arizona - spelled backwards is Anodes. New-agey types were trying to say that meant something.
2012-04-10T19:31:21 < emeb> Energy/Vortices/etc. Actually the name of the founder's wife.
2012-04-10T19:31:22 <+Steffanx> Yay
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2012-04-10T19:51:27 <+dekar> Steffanx, nope, but will do it eventually
2012-04-10T19:51:38 <+dekar> got other stuff to do atm
2012-04-10T19:52:34 <+dekar> Steffanx, http://dl.dropbox.com/u/28467113/iFixIt.jpg
2012-04-10T19:52:48 <+dekar> works surprisingly well
2012-04-10T19:54:32 <+dekar> Thorn, those gecko kits? I also had one in my mail a while ago - never even ordered it O.o
2012-04-10T19:54:52 <+dekar> I did like the chewing gum it came with though :)
2012-04-10T19:55:14 < Thorn> wth
2012-04-10T19:55:42 <+dekar> the capacitive touch area is nice as well - played with it using the default firmware
2012-04-10T19:56:01 <+dekar> but never bothered uploading own code
2012-04-10T19:59:09 < Thorn> http://www.energymicro.com/tools/efm32-gecko-starter-kit ?
2012-04-10T20:00:09 <+dekar> Thorn, http://dl.dropbox.com/u/28467113/gecko.jpg
2012-04-10T20:00:16 <+dekar> http://dl.dropbox.com/u/28467113/gecko2.jpg
2012-04-10T20:01:02 < Thorn> yes that's it
2012-04-10T20:02:22 <+dekar> I would offer to send it to you, but a friend asked me for it a while ago
2012-04-10T20:03:16 <+dekar> he has never worked with µCs before and will probably lose interest soon anyway, so if I get it back you can have it
2012-04-10T20:04:24 <+dekar> so yeah I also got one and I also don't appreciate it, I rather stick to the stm32 :)
2012-04-10T20:05:02 < Thorn> heh thanks, I don't think I want it *that* bad :)
2012-04-10T20:06:59 < Thorn> according to this video http://www.youtube.com/watch?v=OAjLbAcNSUg you can use onboard j-link to debug external targets btw
2012-04-10T20:07:41 <+dekar> well I have two versaloon (stm32 based jtag adapters)
2012-04-10T20:07:42 < Thorn> no idea if it's somehow locked to efm32 targets only if not. if not, you basically got yourself free j-link :)
2012-04-10T20:08:02 < Thorn> s/if not/or not/
2012-04-10T20:08:34 <+dekar> what makes jlink special?
2012-04-10T20:09:33 < Thorn> it's supported by every $$$ IDE out there, and in general considered a reliable "professional" debugger
2012-04-10T20:10:01 < Thorn> for those who doesn;t mind to buy a separate license for every feature that is
2012-04-10T20:10:51 <+dekar> I only use openOCD/eclipse anyway
2012-04-10T20:11:07 <+dekar> so I guess it'd make no difference for me
2012-04-10T20:11:12 < Thorn> it has a gdb server too btw
2012-04-10T20:12:05 <+dekar> it says it requires windows
2012-04-10T20:13:11 < Thorn> they have linux software too, no idea if it matches windows versions in features or reliability
2012-04-10T20:15:10 <+dekar> still, why would I want to use their proprietary software rather than openOCD and versaloon? somehow it doesn't appeal to me :)
2012-04-10T20:15:35 <+dekar> besides that I barely use debugging anyway
2012-04-10T20:17:14 <+dekar> the gecko has this awesome power monitoring though, that looks pretty cool
2012-04-10T20:17:39 < karlp> that's just an app though isn't it?
2012-04-10T20:17:42 <+dekar> but my project isn't power limited, so it wouldn't really matter
2012-04-10T20:17:44 < karlp> the stm32L demo board did that too
2012-04-10T20:18:14 < karlp> or does the efm part have a coulomb counter built in or something?
2012-04-10T20:18:42 < karlp> (the 32L demo board has a nice touchscreen section too)
2012-04-10T20:19:17 <+dekar> karlp, http://www.youtube.com/watch?feature=player_detailpage&v=zBAxeCDLZgA#t=37s
2012-04-10T20:19:23 <+dekar> idk, but it looks pretty :)
2012-04-10T20:21:01 < Thorn> I designed U+I monitoring into my last board but haven't tested it yet
2012-04-10T20:21:13 < Thorn> do they have the source for that software btw? :)
2012-04-10T20:24:33 <+dekar> for their own software? O.o
2012-04-10T20:24:55 <+dekar> my board has U+I monitoring as well :) http://dl.dropbox.com/u/28467113/Screen%20Shot%202012-04-10%20at%207.23.13%20PM.png
2012-04-10T20:25:05 < Thorn> I mean, did they make it available?
2012-04-10T20:26:02 <+dekar> well I haven't used the gecko so idk
2012-04-10T20:26:27 < Thorn> mac software with a "fire laser" button O_o
2012-04-10T20:27:01 <+dekar> ya I'm on mac for now, till I find a laptop I feel like getting
2012-04-10T20:27:29 <+dekar> it's Qt software though, so it runs on pretty much any OS
2012-04-10T20:30:12 <+dekar> somehow laptops don't like me, my mac tried to fail me today as well, I sawed it open and fixed it though ;) http://dl.dropbox.com/u/28467113/iFixIt.jpg
2012-04-10T20:30:18 < Thorn> good, I though you did it in objective C and cocoa :)
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2012-04-10T20:32:24 <+dekar> I actually don't even understand all this apple stuff, like cocoa, aqua, carbon...
2012-04-10T20:32:50 <+dekar> then there is apple script, apple users have flamed me for how my Qt app would suck when you interface it with applescript
2012-04-10T20:33:06 <+dekar> but I don't feel like learning their proprietary stuff anyway :P
2012-04-10T20:33:19 < Thorn> carbon is dead(?) and aqua can only be understood by graphics designers
2012-04-10T20:34:03 <+dekar> and what's quartz?
2012-04-10T20:34:42 < Thorn> it's their pdf rendering toolkit which they use to draw UIs or something
2012-04-10T20:34:46 <+dekar> I had to add that to some apps I installed with macports to make them use the native UI
2012-04-10T20:36:14 <+dekar> well thanks for the information, I was too lazy to look that up lol
2012-04-10T20:36:55 <+dekar> but I don't feel like staying with OSX anyway, I just thought it was a good idea having it used for a while in order to support it better
2012-04-10T20:37:04 < Thorn> I never owned any apple products but played a little with http://www.gnustep.org/ a few years ago
2012-04-10T20:37:59 <+dekar> I don't own any as well, that macbook was the only spare laptop I found lying around at work when my laptop failed :)
2012-04-10T20:38:27 <+dekar> somehow all of my co-workers are religious apple haters
2012-04-10T20:39:19 <+dekar> I don't really care, I don't like some aspects of OSX though, but same applies to any other OS :/
2012-04-10T20:39:24 < Thorn> maybe that's because you aren't working in an advertising agency :p
2012-04-10T20:39:58 <+dekar> I guess :)
2012-04-10T20:41:26 <+Steffanx> how did you break that magsafe connector anyway dekar ..
2012-04-10T20:41:34 <+dekar> another OSX question, what are those frameworks? at several occasions I ended up having to link them, but I still don't get what they are. I mean they seem to be some kind of lib, but what makes them special?
2012-04-10T20:41:49 <+dekar> Steffanx, it started to melt and I feared it'd catch fire
2012-04-10T20:41:54 <+Steffanx> melt :S
2012-04-10T20:41:58 <+dekar> the chord turned yellow
2012-04-10T20:42:05 <+Steffanx> uh?
2012-04-10T20:42:13 <+dekar> I guess cause of heat
2012-04-10T20:42:35 <+Steffanx> What do you mean with the 'chord' btw?
2012-04-10T20:42:39 <+dekar> cable
2012-04-10T20:42:55 <+dekar> *cord
2012-04-10T20:42:57 <+dekar> :)
2012-04-10T20:43:14 <+Steffanx> Here it's yellow because it's not clean anymore :)
2012-04-10T20:44:07 <+dekar> it's coaxial inside, and the shield broke down - I cut it open and it fell out in pieces
2012-04-10T20:44:13 <+dekar> I guess I have moved it a lot
2012-04-10T20:44:22 <+Steffanx> And which os x-ish frameworks do you mean?
2012-04-10T20:44:46 <+dekar> "-framework Foundation -framework CoreFoundation"
2012-04-10T20:44:48 <+dekar> that stuff
2012-04-10T20:45:16 <+Steffanx> Oh, Qt stuff
2012-04-10T20:45:22 <+dekar> that's not Qt
2012-04-10T20:45:26 <+dekar> that's OSX stuff
2012-04-10T20:45:33 <+Steffanx> Yeah, but you have to link it when you use Qt :)
2012-04-10T20:45:39 <+dekar> "-framework IOKit"
2012-04-10T20:45:47 <+dekar> hows that Qt related?
2012-04-10T20:46:31 <+Steffanx> me doesn't know :P
2012-04-10T20:46:53 < Thorn> well on windows it has to use win32 (ernel32.dll, gdi.dll etc), on linux, Xlib etc. on oxs, cocoa (Foundation is a low-level part of cocoa)
2012-04-10T20:47:01 < Thorn> *kernel32.dll
2012-04-10T20:47:14 < Thorn> and *win32 apis
2012-04-10T20:47:19 <+dekar> but why do you pass "-framework" to gcc instead of normal linking?
2012-04-10T20:47:19 <+Steffanx> Yeah, but iokit?
2012-04-10T20:47:32 < Thorn> no idea about that one
2012-04-10T20:47:34 <+dekar> iokit is for usb (hidapi/libusb)
2012-04-10T20:47:57 <+dekar> oh well I though it was worth a try to ask you :)
2012-04-10T20:48:06 <+Steffanx> No
2012-04-10T20:48:11 <+Steffanx> Not worth it
2012-04-10T20:49:11 <+Steffanx> I have a mac, but really don't know much about the inners of it :)
2012-04-10T20:49:45 <+dekar> me too and I don't feel like looking into the details since I'll switch back to linux sooner or later anyway :)
2012-04-10T20:50:09 <+Steffanx> Poor you
2012-04-10T20:51:06 <+dekar> last night I spent like 4h soldering 50 wires to the NOR chip of my PS3 - I guess I suck at soldering, but at least I can now dump the NOR :/
2012-04-10T20:51:12 <+Steffanx> Why you don't just install a linux distro on your mac?
2012-04-10T20:51:27 <+dekar> Steffanx, I probably will one day
2012-04-10T20:51:32 <+Steffanx> LOL, you still have that ps3?
2012-04-10T20:51:38 <+dekar> yeah
2012-04-10T20:51:39 < Thorn> apple does crazy things with executable and library files, see http://en.wikipedia.org/wiki/Application_bundle
2012-04-10T20:51:46 <+dekar> I finally felt like doing that soldering
2012-04-10T20:52:04 <+Steffanx> That's not crazy, that is nice Thorn
2012-04-10T20:52:04 <+dekar> now it has an AVR32 attached to its NOR :)
2012-04-10T20:52:13 <+Steffanx> AVR32?
2012-04-10T20:52:21 <+Steffanx> Why AVR32?
2012-04-10T20:52:45 <+dekar> cause some open source NOR flashing firmware runs on AVR32
2012-04-10T20:52:46 < Thorn> http://en.wikipedia.org/wiki/Application_bundle#Mac_OS_X_framework_bundles
2012-04-10T20:53:25 <+dekar> ah so it's just libs in bundles with nice versioning :)
2012-04-10T20:53:42 <+Steffanx> The usb hack is nicer dekar
2012-04-10T20:53:44 <+Steffanx> *was
2012-04-10T20:54:00 <+dekar> Steffanx, using mine I can still play online
2012-04-10T20:54:09 <+dekar> s/can/could if I wanted
2012-04-10T20:54:20 <+Steffanx> You only use it has hacking device..?
2012-04-10T20:54:35 <+dekar> yeah
2012-04-10T20:54:41 <+dekar> it's still inside
2012-04-10T20:54:53 <+dekar> made a hole in the case to reach the usb port
2012-04-10T20:55:15 <+Steffanx> At least it was a gift
2012-04-10T20:55:35 <+dekar> also used power tools to cut away like half of the metal surrounding the mainboard
2012-04-10T20:55:45 <+dekar> those 50 cables take up a ton of room
2012-04-10T20:55:58 <+Steffanx> pictures :)
2012-04-10T20:56:01 <+dekar> I hate NOR flash, the NAND in my 360 speaks SPI at least
2012-04-10T20:56:23 <+dekar> I'll make some later
2012-04-10T20:58:54 <+dekar> Steffanx, how does it matter whether it was a gift or not?
2012-04-10T20:59:54 <+Steffanx> it means you didn't pay for it
2012-04-10T21:00:00 <+Steffanx> That really changes things .. imho :P
2012-04-10T21:00:01 <+dekar> yeah, so?
2012-04-10T21:00:24 <+Steffanx> It's easier to break things when you didn't pay for it :)
2012-04-10T21:00:26 <+dekar> I don't get what you're implying, do you mean like "risking destroying it doesn't matter since it was free?"
2012-04-10T21:01:03 <+dekar> well I paid for my 360 and butchered it anyway :)
2012-04-10T21:01:13 <+Steffanx> That's old crap :P
2012-04-10T21:01:43 <+dekar> flame-much?
2012-04-10T21:01:53 <+Steffanx> Flame-more?
2012-04-10T21:02:11 <+dekar> I actually like the 360 better, can't stand the small ps3 controllers
2012-04-10T21:02:35 <+dekar> that's why I had it sit around for that long, didn't use it for like the last 6 months or so
2012-04-10T21:02:53 <+dekar> besides that I barely play games anyway
2012-04-10T21:03:01 <+Steffanx> Anyway, don't take things i say too serious :) Most of the time you have to add a bit of sarcasm and stuff like that :)
2012-04-10T21:04:50 <+dekar> most of the time hacked (or hackable) consoles gain a lot in worth btw
2012-04-10T21:05:15 <+Steffanx> So what's the play with the ps3?
2012-04-10T21:05:18 <+Steffanx> Run linux?
2012-04-10T21:05:19 <+dekar> I paid 160€ for my xbox and I then saw similar ones getting sold for up to 400€ at ebay
2012-04-10T21:05:30 <+dekar> Steffanx, idk, I just felt like hacking it
2012-04-10T21:05:57 <+dekar> it's not like I have any use for it anyway :D
2012-04-10T21:06:15 <+dekar> I guess I could use it to play bluray
2012-04-10T21:06:20 <+dekar> well if I had any...
2012-04-10T21:06:25 <+Steffanx> People use that?
2012-04-10T21:07:00 <+dekar> I will probably run linux on it, maybe play a bit with OpenCL
2012-04-10T21:07:06 <+dekar> or just have it sitting around
2012-04-10T21:07:17 <+Steffanx> I'll probably never use bluray
2012-04-10T21:07:32 <+Steffanx> I've never ever seen a bluray disc in real life :)
2012-04-10T21:07:44 <+Steffanx> in my hands
2012-04-10T21:08:09 <+dekar> I have, PS3 games
2012-04-10T21:09:22 <+dekar> not that I have PS3 games though :)
2012-04-10T21:09:46 <+dekar> but I was holding some before
2012-04-10T21:10:22 <+dekar> I think I can now even use the secret CELL core of the PS3
2012-04-10T21:10:28 <+dekar> the one that normally does the DRM
2012-04-10T21:10:51 <+Steffanx> Sony is going to sue you
2012-04-10T21:11:25 <+dekar> and the GPU as well :)
2012-04-10T21:11:33 <+dekar> which normally is locked to linux
2012-04-10T21:11:44 <+dekar> well on models that could run linux at least
2012-04-10T21:13:36 <+dekar> they'll sue me for torturing the PS3. It still is pretty desperate, when I turn it on it complains about the lack of an HDD, I also stripped the wifi/bluetooth antennas and some other stuff
2012-04-10T21:13:45 <+dekar> gotta put it together properly again :/
2012-04-10T21:28:57 < Thorn> why don't LAs like OLS or saleae offer a trigger out port which you could connect to a ext trigger input on a DSO? I wonder if big and expensive ones do
2012-04-10T21:29:14 < Thorn> or does everybody uses $$$ mixed signal DSOs these days?
2012-04-10T21:33:33 < Thorn> it would probably be next to impossible to do that well in saleae because you'd need to send the trigger signal back to the hardware over USB -> delays, but OLS triggers are implemented in the fpga so it can't be hard to add that and it would have virtually no delay
2012-04-10T21:38:00 <+jpa-> well, in OLS, shouldn't you be able to add it yourself?
2012-04-10T21:38:44 < Thorn> I guess so, it's got a lot of free pins broken out
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2012-04-10T22:11:56 < Laurenceb_> sup
2012-04-10T22:12:24 < os-app92> Hi
2012-04-10T22:15:26  * Laurenceb_ is having a bad day
2012-04-10T22:16:10 < Laurenceb_> stupid glitches on my led spectrometer thingy
2012-04-10T22:16:49 < Laurenceb_> does the stm32 adc do anything weird if the singal is too large?
2012-04-10T22:17:23 < karlp> other than eating children? no, nothing too unexpected.
2012-04-10T22:17:37 < Laurenceb_> it cant produce 0xFFFF?
2012-04-10T22:17:42 < Laurenceb_> http://www.silabs.com/products/mcu/udp/Pages/Web-Drawing-for-SiM3U1xx-DK.aspx?mkt_tok=3RkMMJWWfF9wsRoks6TNZKXonjHpfsX56OwsUKC0lMI%2F0ER3fOvrPUfGjI4ATMRkI%2FqLAzICFpZo2FFLE%2ByUfpM%3D
2012-04-10T22:17:51 < Laurenceb_> ^well thats an exciting looking board
2012-04-10T22:17:52 < Laurenceb_> or not
2012-04-10T22:19:00 < Thorn> Laurenceb: mine does produce exactly 0xFFFF with no noise when Vin = Vref+
2012-04-10T22:19:09 < Laurenceb_> oh god wuttt
2012-04-10T22:19:14 <+Steffanx> Ugly board Laurenceb_
2012-04-10T22:19:18 < Laurenceb_> that might explain things
2012-04-10T22:20:11  * Laurenceb_ grabs ref manual
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2012-04-10T22:29:52 < Laurenceb_> i cant find that anywhere in the datasheet
2012-04-10T22:30:05 < zyp> find what?
2012-04-10T22:30:10 < Laurenceb_> some <16bit adcs output 0xffff to show overflow
2012-04-10T22:30:18 < Laurenceb_> does the stm32 adc do it?
2012-04-10T22:30:40 < Thorn> ah wait
2012-04-10T22:31:25 < Thorn> I said 0xFFFF, that's wrong of course. I actually got 4095. sorry
2012-04-10T22:31:46 <+Steffanx> isn't it just limited ?
2012-04-10T22:31:56 <+Steffanx> no overflows
2012-04-10T22:32:11 < Thorn> 0x0FFF that is.
2012-04-10T22:32:37 < Laurenceb_> ok
2012-04-10T22:32:42 < Laurenceb_> i hate these sort of bugs
2012-04-10T22:32:44 < zyp> it's a 12-bit adc so it's kind of obvious it would give 0xfff when saturated
2012-04-10T22:33:00 < Laurenceb_> its about 1 in 10^4 demodulated samples is screwy
2012-04-10T22:33:10 < zyp> or 0xfff0 if left aligned
2012-04-10T22:33:21 < Laurenceb_> yeah
2012-04-10T22:33:52 < Laurenceb_> theres not enough ram to buffer the data and see
2012-04-10T22:34:17 < Laurenceb_> - i could break on screwy data, but just the buffer to hold the raw adc data for one sample is too much
2012-04-10T22:34:50 < Laurenceb_> 25KB raw data/sample
2012-04-10T22:36:54 < Laurenceb_> maybe i should give up and watch porn
2012-04-10T22:37:31 < Laurenceb_> follow flyback
2012-04-10T22:41:58 <+Steffanx> never do that
2012-04-10T22:43:13 < Laurenceb_> yeah, infectious BO
2012-04-10T22:43:52 <+Steffanx> You have to be a yankie to become like flyback-
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2012-04-10T22:51:52 < Thorn> the hoops people will jump through so they don't use ARM http://code.google.com/p/super-osd/
2012-04-10T22:52:01 < Thorn> "Two processor solution; one dsPIC33F for OSD, one dsPIC33F for background tasks. "
2012-04-10T22:52:09 <+Steffanx> pic..
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2012-04-10T23:24:09 < Laurenceb_> oh its the epic soldering disasters guy
2012-04-10T23:24:17 < Laurenceb_> thats why theres no pics
2012-04-10T23:24:31 < Laurenceb_> http://www.rcgroups.com/forums/showthread.php?t=1290963&page=106
2012-04-10T23:24:47 < Laurenceb_> "I took off flew nicely then got a bit disorientated and hit a wooden pole. Plane is undamaged."
2012-04-10T23:24:58 < Laurenceb_> and i thought i failed at everything
2012-04-10T23:25:55 < Thorn> so it wasn't the plane who hit the wooden pole?
2012-04-10T23:26:31 < Thorn> you can get disorientated if you're looking into a monitor and walking at the same time
--- Day changed Wed Apr 11 2012
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2012-04-11T00:37:58 < Laurenceb_> http://wiki.nottinghack.org.uk/wiki/Do_Not_Be_On_Fire
2012-04-11T00:38:00 < Laurenceb_> lulwut
2012-04-11T00:38:16 < Laurenceb_> i have to head down to that place
2012-04-11T00:38:24 < Laurenceb_> my friend got banned
2012-04-11T00:39:21 < Laurenceb_> admittedly he turned up to the place drunk and started smoking loads of weed in the middle of their meeting
2012-04-11T00:46:25 < Laurenceb_> http://www.silabs.com/products/mcu/Pages/32-bit-mcu-software.aspx
2012-04-11T00:46:32 < Laurenceb_> ^that actually looks quite nice
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2012-04-11T09:57:59 < jon1012> hi
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2012-04-11T09:59:43 < jon1012> from all the examples to compile for stm32f4 under linux there is no std lib
2012-04-11T09:59:52 < jon1012> but I need functions like strlen, strcpy and such
2012-04-11T10:00:09 < jon1012> and when I try to include the newlib there is all kind of weird errrors
2012-04-11T10:00:14 < jon1012> anyone knows what is the solution ?
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2012-04-11T10:04:23 < zyp> if you want to use newlib you have to satisfy newlib's depencencies
2012-04-11T10:04:44 < zyp> otherwise you'll get what you call «all kind of weird errrors»
2012-04-11T10:08:42 < jon1012> zyp, I used summon arm toolchain
2012-04-11T10:09:05 < jon1012> all kind of errors is like all the functio ns prefixed by _ not found
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2012-04-11T10:19:34 < jon1012> zyp, I'm rebuilding my whole stack myself without using summon arm toolchain
2012-04-11T10:19:43 < jon1012> zyp, maybe it'll work oput better
2012-04-11T10:19:45 < jon1012> out*
2012-04-11T10:25:07 < zyp> no, you're missing the point
2012-04-11T10:25:47 < zyp> I'm sorry I were absent for a while, I'm at work and had to actually work for a bit :p
2012-04-11T10:27:35 < jon1012> work ? what is that ? :O
2012-04-11T10:27:37 < jon1012> hehe
2012-04-11T10:29:06 < zyp> the thing that earns me money to do cool stuff
2012-04-11T10:29:08 < zyp> anyway
2012-04-11T10:29:38 < zyp> newlib have some dependencies you have to fulfill before it can work
2012-04-11T10:29:57 < jon1012> what are they ?
2012-04-11T10:30:12 < zyp> which functions are you missing?
2012-04-11T10:30:52 < zyp> to use newlib's heap you have to provide sbrk()
2012-04-11T10:31:03 < jon1012> sbrk ?
2012-04-11T10:31:15 < zyp> anyway
2012-04-11T10:31:22 < zyp> pastebin a log of the errors you get
2012-04-11T10:31:34 < jon1012> I am rebuilding my toolchain right now
2012-04-11T10:31:37 < zyp> so I don't have to answer based on assumptions
2012-04-11T10:31:38 < jon1012> once I'm done I'll do
2012-04-11T10:31:40 < jon1012> yeah
2012-04-11T10:32:43 < jon1012> ok, whenever I include it
2012-04-11T10:32:44 < jon1012> I get
2012-04-11T10:32:52 < jon1012> In function `exit':  undefined reference to `_exit'
2012-04-11T10:33:40 < jon1012> that's why I start thinking it may be a problem with my env
2012-04-11T10:33:51 <+dekar> jon1012, that's normal for newlib
2012-04-11T10:33:52 < zyp> no, exit is another of those dependencies
2012-04-11T10:34:07 <+dekar> the newlib page explains you how to implement those for baremetal
2012-04-11T10:34:20 <+dekar> those are syscall hooks for operating systems
2012-04-11T10:34:58 < jon1012> also
2012-04-11T10:35:04 < zyp> http://ieee.uwaterloo.ca/coldfire/gcc-doc/docs/porting_3.html#SEC14 <- read this
2012-04-11T10:36:22 < jon1012> thanks
2012-04-11T10:37:23 < jon1012> there is no exit there ?
2012-04-11T10:37:52 < zyp> you just have to provide an exit function that stops execution
2012-04-11T10:38:22 < zyp> if you're running under an OS, exit would be the syscall to quit a process
2012-04-11T10:38:45 < jon1012> and under bare metal ?
2012-04-11T10:38:52 < zyp> but when you're only running a single process directly on the cpu, exit is not that important
2012-04-11T10:39:01 <+dekar> implement exit as while(1);
2012-04-11T10:39:07 < jon1012> ok
2012-04-11T10:39:16 <+dekar> you have to implement those
2012-04-11T10:40:19 < jon1012> ugh
2012-04-11T10:41:09 < jon1012> so I have ot implement _exit ?
2012-04-11T10:41:13 < jon1012> that will be called by exit ?
2012-04-11T10:41:23 < zyp> void _exit() { while(1); }
2012-04-11T10:41:25 < zyp> there you have it.
2012-04-11T10:41:34 < jon1012> thanks :)
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2012-04-11T10:42:37 <+dekar> we should make some example implementation of those for our toolchain
2012-04-11T10:44:32 < ziph> Disabling interrupts followed by a WFI works too.
2012-04-11T10:45:05 < ziph> Unless you have DMA's running on some bus that gets disabled in a WFI.
2012-04-11T10:46:09 < zyp> either way, you can treat exit as a fault
2012-04-11T10:46:24 < jon1012> thanks guys ! :)
2012-04-11T10:46:54 < ziph> Yeah, causing a fault is probably the better option.
2012-04-11T10:47:53 < jon1012> (ugh, now that I activated newlib, my serial is borked)
2012-04-11T10:48:00 < jon1012> (I guess it changes some things)
2012-04-11T10:50:22 < zyp> it shouldn't
2012-04-11T10:56:47 < jon1012> btw, is there a way to get the errors on the uart ?
2012-04-11T10:57:01 < jon1012> I mean, to get some kind of function called on exception
2012-04-11T10:57:10 < jon1012> and throw an info on the console ?
2012-04-11T10:57:50 < jon1012> (I know it's on bare metal, but maybe there is something like that somewhere)
2012-04-11T11:13:53 < ziph> jon1012: Yes, you write it yourself.
2012-04-11T11:16:16 < jon1012> ziph, yeah that's not a problem, but I mean, what is the hook for this ?
2012-04-11T11:16:28 < jon1012> ziph, I am a beginner in arm dev
2012-04-11T11:16:31 < jon1012> sorry
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2012-04-11T11:35:59 < ziph> jon1012: You hook exception handlers the same as with interrupt handlers.
2012-04-11T11:36:08 < ziph> jon1012: The exception details get stuck on the stack.
2012-04-11T11:36:26 < ziph> jon1012: The best place to read about that is the Cortex manuals.
2012-04-11T11:36:49 < jon1012> thanks :)
2012-04-11T11:36:56 < jon1012> (sorry I got disconnected)
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2012-04-11T11:53:15 < jon1012> I have some strange errors with the newlib, whenever I call the string functions, the program hangs, with no info at all
2012-04-11T11:53:33 < jon1012> (I tried with several strings, using known to work simple c code with string.h)
2012-04-11T11:56:37 < gsmcmullin> jon1012: It's possibly a gcc multilib issue.  You may be linking to an ARM newlib, while the device only supports thumb2.
2012-04-11T11:57:11 < zyp> I was thinking the same
2012-04-11T11:57:40 < jon1012> :-/
2012-04-11T11:58:54 < jon1012> so, what is the way to go then ?
2012-04-11T11:59:07 < jon1012> I should work without stdlib ?
2012-04-11T11:59:07 < gsmcmullin> Where did you get your gcc from?
2012-04-11T11:59:24 < gsmcmullin> You just need to find out the right command line options to use at link time.
2012-04-11T11:59:40 < jon1012> first I used the tutorial for stm32f4 under linux with summon arm toolchain
2012-04-11T12:00:00 < jon1012> but now as it didn't work, I used http://cu.rious.org/make/compiling-the-arm-cortex-m4-toolchain-yourself/
2012-04-11T12:01:25 < gsmcmullin> I'm using summon-arm-toolchain.  It's working for me.
2012-04-11T12:01:54 < jon1012> do you have an example makefile that does work on stm32f4 with an stdlib ?
2012-04-11T12:02:15 < gsmcmullin> The examples in libopencm3.
2012-04-11T12:02:54 < jon1012> thanks
2012-04-11T12:03:48 < gsmcmullin> The usb_cdcacm examples uses string.h functions.  They're used in the usb stack.
2012-04-11T12:04:49 < gsmcmullin> You can do 'arm-none-eabi-gcc --print-multi-lib'
2012-04-11T12:19:40 < jon1012> arg seems to work :)
2012-04-11T12:19:41 < jon1012> thanks !
2012-04-11T12:19:46 < jon1012> I had to add "-march=armv7 -mfix-cortex-m3-ldrd"
2012-04-11T12:19:52 < jon1012> which is strange for cortex m4 :-/
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2012-04-11T12:39:12 < jon1012> thanks for all your help :)
2012-04-11T12:41:22 < karlp> why? m4 isn't actually substantially different
2012-04-11T12:41:59 < jon1012> "warning: switch -mcpu=cortex-m4 conflicts with -march=armv7 switch"
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2012-04-11T16:27:15 < Laurenceb> for nvic priorities, the lower the number the higher the priority right?
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2012-04-11T16:28:13 <+jpa-> yes
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2012-04-11T17:00:44 < Laurenceb> annoying...
2012-04-11T17:00:50 < Laurenceb> sometimes my pwm breaks
2012-04-11T17:03:42 < Laurenceb> is assert called at runtime?
2012-04-11T17:10:39 < karlp> if you compiled in debug mode, yes.
2012-04-11T17:11:02 < karlp> if you meant c assert, if you mean some assert macro or something, then.... maybe?
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2012-04-11T18:18:21 < Laurenceb> hmm still breaks with no assert
2012-04-11T18:20:32 < karlp> so, hardfaulting then?
2012-04-11T18:22:47 < Laurenceb> no - pwm is glitching
2012-04-11T18:23:47 < Laurenceb> http://pastebin.com/C8p6uJjf
2012-04-11T18:24:25 < Laurenceb> i dont know why but that seems to cause timer2 to continue counting up to 0xffff
2012-04-11T18:24:32 < Laurenceb> about one time in 10^4 when called
2012-04-11T18:25:06 <+jpa-> are you using center-aligned mode?
2012-04-11T18:25:34 < Laurenceb> i dont know
2012-04-11T18:25:57 < Laurenceb> TIM_OCMode_PWM1
2012-04-11T18:26:23 <+jpa-> it's a timer setting
2012-04-11T18:26:53 < zyp> oh, that stuff
2012-04-11T18:27:08 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/blob/master/timer.c
2012-04-11T18:27:19 < zyp>  I thought I told you that disabling and enabling reload buffering would be stupid
2012-04-11T18:27:23 <+jpa-> hmm.. but probably doesn't even matter
2012-04-11T18:27:43 < Laurenceb> zyp: how come it works almost all the time
2012-04-11T18:27:43 <+jpa-> yeah, loading ARR without preload while timer is running is quite risky
2012-04-11T18:27:58 < Laurenceb> i dont see why its failing
2012-04-11T18:28:01 <+jpa-> Laurenceb: it probably fails only when ARR > CNT > new ARR
2012-04-11T18:28:09 < Laurenceb> sure thats obvious
2012-04-11T18:28:15 < Laurenceb> so i guard against that
2012-04-11T18:28:19 < Laurenceb> but it still fails
2012-04-11T18:28:24 < Laurenceb> very rarely
2012-04-11T18:29:08 <+jpa-> well it will increment also between your check and your set
2012-04-11T18:29:15 < Laurenceb> i know, hence the -2
2012-04-11T18:29:27 <+jpa-> is that enough?
2012-04-11T18:29:32 < Laurenceb> while(TIM2->CNT>=(PWM_FUDGE2-2));
2012-04-11T18:29:44 < Laurenceb> hmm it works just as badly with 1
2012-04-11T18:29:49 < Laurenceb> ill try 3
2012-04-11T18:29:53 <+jpa-> try 10!
2012-04-11T18:31:18 <+jpa-> and btw; TIM_SetAutoreload() etc. is quite slow
2012-04-11T18:31:26 <+jpa-> why not just write the TIM registers directly?
2012-04-11T18:31:44 < Laurenceb> i am now
2012-04-11T18:31:52 <+jpa-> unless you have made some adjustments to the peripheral lib in order to inline them
2012-04-11T18:31:57 < Laurenceb> leaving it to run for a few minutes to pick up glitches
2012-04-11T18:32:45 < Laurenceb> wonder if theres a way to pick them up with a scope
2012-04-11T18:39:43 < zyp> get a logic analyzer
2012-04-11T18:40:04 < Laurenceb> hmm its broken now
2012-04-11T18:41:27 < Laurenceb> hardfault on shutdown
2012-04-11T18:41:29 < Laurenceb> nice
2012-04-11T18:42:55 <+jpa-> how do you shutdown a microcontroller? :)
2012-04-11T18:43:26 < Laurenceb> hmm this makes no sense
2012-04-11T18:44:18 < Laurenceb> its totally dead
2012-04-11T18:44:41 < Laurenceb> oh
2012-04-11T18:44:51 < Laurenceb> power cable is unplugged
2012-04-11T18:45:18  * Laurenceb fails
2012-04-11T18:45:46 <+jpa-> pebkec
2012-04-11T18:47:16 < Laurenceb> wtf... no glitches
2012-04-11T18:47:48 < Laurenceb> i dont see how it can take that many timer clks to run the code
2012-04-11T18:47:57 < Laurenceb> timer is at f_cpu/16
2012-04-11T18:49:12 <+jpa-> well, -2 gives you 16 clock cycles to do your thing
2012-04-11T18:49:36 <+jpa-> if i figure out correctly
2012-04-11T18:49:52 <+jpa-> because right after the while, it may go to -1.. and 16 cycles after that, you are busted
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2012-04-11T18:53:40 < Laurenceb> hmm i guess
2012-04-11T18:54:08 < Laurenceb> ive broken something
2012-04-11T18:54:22 < Laurenceb> it sometimes doesnt turn off properly now
2012-04-11T18:54:34 < Laurenceb> some issue with wait inside an isr
2012-04-11T18:58:16 < Laurenceb> nope not fixed
2012-04-11T18:59:47 < Laurenceb> going to have to find a way to debug this :S
2012-04-11T19:00:48 <+jpa-> Laurenceb: put a check for TIM->CNT at the end of the update and break into debugger if it's it
2012-04-11T19:01:41 <+jpa-> normal people would just modify the timer period using DMA
2012-04-11T19:01:57 <+jpa-> that's why it has preload register and associated DMA triggers
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2012-04-11T19:07:22 < Laurenceb> hmm
2012-04-11T19:07:43 < zyp> Laurenceb, you were once asking me about the weight of my F4 board?
2012-04-11T19:07:48 < Laurenceb> yes
2012-04-11T19:08:00 < zyp> it's 16g with all the connectors soldered on, nothing plugged in
2012-04-11T19:08:16 < zyp> unpopulated board is 9g
2012-04-11T19:08:40 < Laurenceb> nice
2012-04-11T19:09:04 < Laurenceb> light enough to go on one of jcoxons balloons
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2012-04-11T19:13:26 <+Steffanx> nu
2012-04-11T19:15:14 <+jpa-> Steffanx: Laurenceb had pebkec
2012-04-11T19:15:53 < Laurenceb> lol
2012-04-11T19:16:01 <+Steffanx> zlog
2012-04-11T19:16:01 < zlog> Steffanx: Log stored at http://tom-itx.dyndns.org:81/~tom-itx/irc/logs/%23%23stm32/2012-04-11.html
2012-04-11T19:16:04 < Laurenceb> hmm im not sure this is the issue
2012-04-11T19:16:34 < Laurenceb> i need a way to detect pwm glitches
2012-04-11T19:17:09 <+Steffanx> Scope :)
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2012-04-11T19:17:42 < Laurenceb> yeah but its about once a minute
2012-04-11T19:17:47 < Laurenceb> on 12khz pwm
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2012-04-11T19:18:54 < Laurenceb> there must be a way to do this using a scope
2012-04-11T19:20:10 < zyp> I hear you've got lots of money to spend, why do you still not have a logic analyzer?
2012-04-11T19:20:54 <+jpa-> Laurenceb: you could give a pulse on GPIO when you do the fudge stuff, then you can trigger on it?
2012-04-11T19:21:00 <+Steffanx> Sealea(or something) clones are cheap :P
2012-04-11T19:21:33 < zyp> the original ones are pretty affordable aswell
2012-04-11T19:21:42 < Laurenceb> yeah ill have to buy one
2012-04-11T19:21:42 <+Steffanx> Yes, but the clones are cheaper
2012-04-11T19:21:56 < Laurenceb> jpa-: i dont think that is the issue
2012-04-11T19:22:03 < Laurenceb> after playing around with jtag
2012-04-11T19:22:05 < zyp> Steffanx, but not in an enclosure?
2012-04-11T19:22:09 <+Steffanx> Who cares ? :P
2012-04-11T19:22:11 < Laurenceb> it looks like its working fine
2012-04-11T19:22:15 < zyp> I care
2012-04-11T19:22:19 <+Steffanx> zyp cares
2012-04-11T19:23:57 < zyp> you don't need more open boards floating around on your desk when you pull out your logic analyzer to debug some issue on the other mess you've got floating around on your board
2012-04-11T19:24:14 < zyp> on your desk*
2012-04-11T19:24:53 <+Steffanx>  /you/I
2012-04-11T19:25:02 <+jpa-> moar boards
2012-04-11T19:25:03 < zyp> I'm pretty tired of having to use the discovery board for swd now
2012-04-11T19:25:14 <+Steffanx> You don't have to
2012-04-11T19:25:28 <+Steffanx> Get a 3d printer and print an enclosure
2012-04-11T19:25:48 < zyp> I have a 3d printer, I just have to assemble it :p
2012-04-11T19:25:49 <+jpa-> cut it in half with a hacksaw so it fits in a smaller box
2012-04-11T19:26:01 <+Steffanx> or that
2012-04-11T19:26:16 <+Steffanx> You don't need the entire discovery board :)
2012-04-11T19:27:44 < zyp> still waiting for the black magic thing I ordered, hoping that it's decent
2012-04-11T19:28:37 < zyp> still not enclosed, I think, so I might shrinkwrap it
2012-04-11T19:29:50 < Laurenceb> damn
2012-04-11T19:30:00 < Laurenceb> glitches arent from the timer adjustment
2012-04-11T19:30:08 < Laurenceb> if i remove it they are still there
2012-04-11T19:30:45 <+jpa-> Laurenceb: is this f1 or f4 btw?
2012-04-11T19:30:51 < Laurenceb> f1
2012-04-11T19:31:07 < Laurenceb> im going to try and capture any glitches on scope
2012-04-11T19:31:15 <+Steffanx> i need that flyback ?
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2012-04-11T19:31:47 <+Steffanx> Except for the US shipping crap
2012-04-11T19:32:07 <+Steffanx> :P
2012-04-11T19:32:20 <+Steffanx> I just like to say that while you're here
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2012-04-11T19:36:45 <+Steffanx> flyback knows how to deal with trolls :)
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2012-04-11T20:07:09 <+dekar> Steffanx, http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_143829.jpg
2012-04-11T20:07:09 <+dekar> http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_143856.jpg
2012-04-11T20:07:09 <+dekar> http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_171030.jpg
2012-04-11T20:07:13 <+dekar> http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_171508.jpg
2012-04-11T20:07:20 <+dekar> http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_171358.jpg
2012-04-11T20:07:43 <+Steffanx> You didn't have smaller wires? :)
2012-04-11T20:08:29 <+dekar> nope :/
2012-04-11T20:08:29 <+Steffanx> At least you 'destroyed' it like a pro
2012-04-11T20:09:50 <+dekar> now that I put it back together it looks neat and tidy again :)
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2012-04-11T21:36:42  * Laurenceb_ RAGE
2012-04-11T21:37:12 < Laurenceb_> why is my demodulated signal glitching
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2012-04-11T21:37:29 < Laurenceb_> i disabled the pwm alignment code
2012-04-11T21:37:33 < Laurenceb_> same problem
2012-04-11T21:37:50 < Laurenceb_> so with adc and all timers free running i get glitches
2012-04-11T21:40:05 < Laurenceb_> its weird - im pretty sure its not random noise or anything, as the dc level of the signal shifts with each glitch
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2012-04-11T21:41:40 < Laurenceb_> stm32 adc uses switched capacitor filter on the input?
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2012-04-11T22:02:32 < Laurenceb_> https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=https%3a%2f%2fmy.st.com%2fpublic%2fSTe2ecommunities%2fmcu%2fLists%2fcortex_mx_stm32%2fPWM%20glitch%20problem&FolderCTID=0x01200200770978C69A1141439FE559EB459D7580009C4E14902C3CDE46A77F0FFD06506F5B&currentviews=195
2012-04-11T22:02:35 < Laurenceb_> oh dear
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2012-04-11T22:28:05 < Laurenceb_> this is odd...
2012-04-11T22:28:21 < Laurenceb_> im seeing a little "knee" on the end of pwm pulses off timer2
2012-04-11T22:28:53 < Laurenceb_> approx 1uS long at ~800mv
2012-04-11T22:29:50 < Laurenceb_> anyone else seen this or similar?
2012-04-11T22:29:51 <+izua> as in, during the 'off' period? or right before they turn on?
2012-04-11T22:29:59 < Laurenceb_> just after it turns off
2012-04-11T22:30:05 < Laurenceb_> i dont have camera to hand
2012-04-11T22:30:26 < Laurenceb_> pwm out goes to 3.3v for 3uS or so
2012-04-11T22:30:40 < Laurenceb_> then drops to 0.8v for 1uS when it should be off
2012-04-11T22:30:52 < Laurenceb_> before finally dropping to zero
2012-04-11T22:30:57 <+izua> i recall some odd happenings with a pwm on a different mcu (i think a pwm30b from avr) in some very specific cases - ie, 0 and 1 bit under half
2012-04-11T22:31:24 <+izua> 0.8v seems very close to 0.7v, witch is a magic voltage :D
2012-04-11T22:31:45 <+izua> clamping diode being fussy? tried the code on a different chip?
2012-04-11T22:33:00 < Laurenceb_> nope i only have one working pcb
2012-04-11T22:34:08 < Laurenceb_> but that would explain it
2012-04-11T22:34:16 < Laurenceb_> nothing about this makes sense :(
2012-04-11T22:34:41 <+izua> it is a dream
2012-04-11T22:34:45 <+izua> you are now breathing manually
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2012-04-11T22:36:48 < Laurenceb_> ill have to find a better scope tomorrow and try and find a way to search for pwm glitches
2012-04-11T22:40:40 <+izua> try and see if the pwm glitches happen at very low frequency and resolution
2012-04-11T22:41:09 <+izua> this way at least you could figure out if it's a logic fail, or some analog issue
2012-04-11T22:46:06 < Laurenceb_> all my analogue is matched to a certain frequency
2012-04-11T23:05:58 < Laurenceb_> adc always takes a fixed number of clk cycles right?
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2012-04-11T23:15:34 < Laurenceb_> pwm outputs should be alt function push pull right?
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2012-04-11T23:44:26 < zyp> or open drain depending on your setup
2012-04-11T23:44:36 < Laurenceb_> yeah
2012-04-11T23:44:51 < Laurenceb_> ill try building a 555 timer circuit tomorrow
2012-04-11T23:45:05 < Laurenceb_> as its the only way i can think of detecting glitches
2012-04-11T23:45:23 < zyp> wat
2012-04-11T23:45:49 < Laurenceb_> to detect missing pwm pulses
2012-04-11T23:47:27 < Laurenceb_> http://home.cogeco.ca/~rpaisley4/LM555.html#22
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2012-04-11T23:50:33 < Laurenceb_> zyp: have you ever taken a look at pwm output on a scope?
2012-04-11T23:51:01 < Laurenceb_> im seeing a 1us long, 800ms pulse on the end of timer2 pwm periods
2012-04-11T23:51:07 < Laurenceb_> *800us
2012-04-11T23:51:13 < Laurenceb_> arg 800mv
2012-04-11T23:53:07 < zyp> I probably have, but I haven't noticed anything weird
2012-04-11T23:54:11 < zyp> usually I just use the logic analyzer and that wouldn't pick up a 0.8V pulse
2012-04-11T23:55:52 < zyp> actually, I can check for you in a few minutes
2012-04-11T23:55:58 < Laurenceb_> i dont think its connected with my issues tho - i had the same glitches on timer3
2012-04-11T23:56:06 < Laurenceb_> -using timer3
2012-04-11T23:56:15 < Laurenceb_> im still not sure if its the timer or not
2012-04-11T23:57:23 < Laurenceb_> remapped to portB, pin10
2012-04-11T23:57:31 < Laurenceb_> timer2 output 3
2012-04-11T23:58:03 < Laurenceb_> https://github.com/Laurenceb/STM32-Logger/blob/master/timer.c#L10
2012-04-11T23:58:42 < Laurenceb_> i removed the ARRP stuff and the problem was unchanged
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--- Day changed Thu Apr 12 2012
2012-04-12T00:00:18 < Laurenceb_> thanks
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2012-04-12T00:16:30 < zyp> nope, no weird pulses
2012-04-12T00:17:00 < zyp> only thing I see is <20ns rise/fall times on both edges
2012-04-12T00:17:58 < zyp> oh, and this is timer2 on F1, by coincidence
2012-04-12T00:18:23 < Laurenceb_> ok thanks
2012-04-12T00:18:32 < Laurenceb_> i used 2mhz bandwidth
2012-04-12T00:18:55 < zyp> I can't remember what I use
2012-04-12T00:19:15 < zyp> this is my previous generation of hardware, loaded with some old firmware
2012-04-12T00:19:57 < zyp> I was testing some stuff with it earlier today, so I had it available :p
2012-04-12T00:20:54 < zyp> http://bin.jvnv.net/f/a8bMt.JPG <- I got tired of recharging batteries :p
2012-04-12T00:21:22 <+Steffanx> So you only enable the pwm of timer 2 Laurenceb_ ?
2012-04-12T00:21:31 < Thorn> wth is that, fly by wire?
2012-04-12T00:21:37 < zyp> :D
2012-04-12T00:22:12 <+Steffanx> Thorn, it's his pet ..
2012-04-12T00:22:22 < zyp> cable is 10m, should be long enough to hover around in my garden for stability testing :p
2012-04-12T00:23:34 < Laurenceb_> heh
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2012-04-12T00:23:41 < Laurenceb_> 555 timer time i think
2012-04-12T00:24:24 < zyp> Laurenceb_, have you tested leaving the pin unconnected when measuring?
2012-04-12T00:24:44 < zyp> the 800mV thing could be a reflection or something
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2012-04-12T00:26:36 < Laurenceb_> hmm maybe
2012-04-12T00:26:41 < Laurenceb_> i think i tested that
2012-04-12T00:26:44 < Laurenceb_> hardware is at work
2012-04-12T00:27:01 <+Steffanx> lol
2012-04-12T00:27:23 <+Steffanx> How can you debug you hw when it's not next to you?
2012-04-12T00:27:26 < Laurenceb_> im going to give up on this till tomorrow :/
2012-04-12T00:28:13 <+Steffanx> You need a robotic arm + webcan Laurenceb_  :)
2012-04-12T00:28:18 <+Steffanx> m
2012-04-12T00:29:13 < Laurenceb_> lol
2012-04-12T00:34:09 < Laurenceb_> i guess i can "fix" it by identifying where the glitches are and correcting with fudge factors in software
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2012-04-12T00:47:29 <+dekar> izua, http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_143829.jpg
2012-04-12T00:47:30 <+dekar> http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_143856.jpg
2012-04-12T00:47:30 <+dekar> http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_171030.jpg
2012-04-12T00:47:30 <+dekar> http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_171508.jpg
2012-04-12T00:47:30 <+dekar> http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_171358.jpg
2012-04-12T00:49:08 <+izua> herp derp debugging @ first pic
2012-04-12T00:49:09 <+Steffanx> déjà v
2012-04-12T00:49:10 <+Steffanx> u
2012-04-12T00:50:08 <+dekar> Steffanx, I just felt like showing them to izua as well, but I guess I should have pm'ed
2012-04-12T00:50:16 <+Steffanx> nono :P
2012-04-12T00:50:44 <+izua> neat.
2012-04-12T00:50:52 <+izua> that's a teensy avr?
2012-04-12T00:50:58 <+dekar> izua, I didn't encounter anything to debug actually :)
2012-04-12T00:51:01 <+dekar> yeah avr32
2012-04-12T00:51:03 <+izua> or a vewry slim explorer?
2012-04-12T00:51:07 <+Steffanx> No teensy..
2012-04-12T00:51:07 <+izua> discovery*
2012-04-12T00:51:09 <+izua> wtf did i just type
2012-04-12T00:51:22 <+izua> ah
2012-04-12T00:51:30 <+izua> i noticed the mess of wires, so that's debugging :P
2012-04-12T00:51:38 <+izua> until you get it in a more permanent fixture :P
2012-04-12T00:51:48 <+dekar> that's permanent
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2012-04-12T00:51:54 <+Steffanx> or is there a avr32 teensy too?
2012-04-12T00:52:23 <+dekar> at90usb1086 - dunno what that mean
2012-04-12T00:52:26 <+dekar> *means
2012-04-12T00:52:35 <+dekar> is that avr32? I just assumed it was
2012-04-12T00:52:35 < Tom_itx> 1286
2012-04-12T00:52:38 <+Steffanx> 8 bit
2012-04-12T00:52:41 < Tom_itx> better check your numbers again
2012-04-12T00:52:46 <+izua> wait.. that's 32?
2012-04-12T00:52:52 <+dekar> 1286 yeah
2012-04-12T00:52:53 <+izua> oh
2012-04-12T00:52:54 < Tom_itx> at90usb1286 is host
2012-04-12T00:52:58 <+Steffanx> 8bit
2012-04-12T00:52:59 <+izua> lol, i googled it while i read it
2012-04-12T00:53:00 < Tom_itx> sorta
2012-04-12T00:53:01 <+dekar> so then it's avr8
2012-04-12T00:53:03 <+dekar> XD
2012-04-12T00:53:04 < Tom_itx> otg but not host
2012-04-12T00:53:06 <+izua> and everybody starteed messing about it being 8 bit
2012-04-12T00:53:07 <+dekar> not using it anyway
2012-04-12T00:53:08 < Tom_itx> 1287 is host
2012-04-12T00:53:14 <+Steffanx> No, it's just AVR dekar :P
2012-04-12T00:53:21 < Tom_itx> JUST!!!!
2012-04-12T00:53:24 <+izua> i think the IOIO platform for android is on 1287
2012-04-12T00:53:25 <+Steffanx> JUST
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2012-04-12T00:54:17 < zyp> how is OTG not host?
2012-04-12T00:54:40 <+Steffanx> It's OTG
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2012-04-12T00:54:52 < zyp> aren't the whole concept of OTG to have the possibility to take both device and host roles?
2012-04-12T00:54:58 <+dekar> izua, did I ever tell you I actually have an IOIO?
2012-04-12T00:55:13 <+dekar> that scot guy I am always ranting about ordered it, without knowing what it was
2012-04-12T00:55:18 <+Steffanx> He
2012-04-12T00:55:21 <+izua> lol
2012-04-12T00:55:33 <+Steffanx> I guess that scottish guy is your bff :P
2012-04-12T00:55:38 <+izua> you and your endless supply of credit on flexoptix's account
2012-04-12T00:55:53 <+izua> iirc, he got laid off
2012-04-12T00:55:55 <+dekar> hey I didn't even _order_ it
2012-04-12T00:55:58 < zyp> or to phrase it another way, aren't host a subset of OTG? how can it then be OTG but not host?
2012-04-12T00:56:06 <+izua> and a new pcb guy came in :P
2012-04-12T00:56:23 <+izua> zyp: er. hosts on pc aren't otg, cause they can't act as clients?
2012-04-12T00:56:45 <+Steffanx> OTG, client only :)
2012-04-12T00:56:46 <+izua> yeah, that's the otg concept, hooking your camera as a host for your printer as a slave. or something like that.
2012-04-12T00:56:47 <+Steffanx> *device
2012-04-12T00:56:57 <+izua> call it slave
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2012-04-12T00:57:03 < Laurenceb_> wtf is that?
2012-04-12T00:57:07 <+izua> why do people hate the slave/master naming scheme :(
2012-04-12T00:57:08 <+Steffanx> magic
2012-04-12T00:57:09 < Laurenceb_> modded ps3  ?
2012-04-12T00:57:18 <+Steffanx> What's wrong with host/device?
2012-04-12T00:57:24 <+izua> it's an overclocked NES
2012-04-12T00:57:28 < zyp> izua, exactly
2012-04-12T00:57:53 <+Steffanx> Anyway, have a nice night
2012-04-12T00:57:53 < zyp> but OTG controllers can act as host controllers, thus are OTG a superset of both host and device
2012-04-12T00:58:06 < zyp> or to flip it around; host and device are subsets of OTG
2012-04-12T00:58:17 <+izua> yep
2012-04-12T00:58:52 <+dekar> Laurenceb_, yeah ps3
2012-04-12T01:00:10 <+izua> what's it supposed to do?
2012-04-12T01:00:30 <+dekar> access the NOR
2012-04-12T01:00:33 <+izua> also i love the cut in the alu
2012-04-12T01:00:43 <+dekar> power tools ftw :)
2012-04-12T01:02:21 <+izua> <random> my mead is running bitter
2012-04-12T01:02:32 <+izua> i'm not sure i should rack it one of these days
2012-04-12T01:02:38 <+izua> or if it just stopped
2012-04-12T01:04:10 < zyp> oh, right, host mode is stripped from 1286
2012-04-12T01:04:22 < zyp> so you can't call 1286 true OTG
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2012-04-12T01:04:56 < zyp> right, it's reflected in the device table
2012-04-12T01:05:18 < zyp> 1286 is listed as having USB Device interface, 1287 is listed as having OTG
2012-04-12T01:11:11 < karlp> anyone having any odd quirks flashing half pages with the 32L?
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2012-04-12T01:15:07 < Laurenceb_> never tried
2012-04-12T01:15:14 < Laurenceb_> how big is a page?
2012-04-12T01:16:02 < karlp> can't remember,
2012-04-12T01:16:20 < karlp> uwe added it to stlink a few months ago, and it was working well (and much faster) for me,
2012-04-12T01:16:35 < Laurenceb_> interesting
2012-04-12T01:16:43 < karlp> but someone's sent me a patch saying that the PC needs to be odd, and to add 1 to initial loader address,
2012-04-12T01:16:51 < karlp> otherwise it hardfaults for him
2012-04-12T01:16:52 < Laurenceb_> what speed do you get? - ive never got greater than 6KB/s
2012-04-12T01:17:07 < karlp> as best I can tell, the initial loader address is never set at all,
2012-04-12T01:17:07 < Laurenceb_> -texane branch
2012-04-12T01:17:20 < karlp> the speedup was only applicable to the 32L devices,
2012-04-12T01:17:26 < Laurenceb_> ah
2012-04-12T01:17:43 < karlp> they have a different flashing manual
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2012-04-12T01:18:27  * Laurenceb_ zzz
2012-04-12T01:19:25 <+dekar> versaloon gets me 14kb/s
2012-04-12T01:20:12 < karlp> oh what device?
2012-04-12T01:20:16 < karlp> what target I mean?
2012-04-12T01:20:17 <+dekar> stm32f103
2012-04-12T01:20:33 < karlp> is your versaloon a real one, or versaloon firmware on an VL discovery board or what?
2012-04-12T01:20:41 <+dekar> real deal
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2012-04-12T06:44:44 < obnauticus> Can someone here who is farmiliar with Chibi/OS help me really fast? For whatever reason my compiler is saying SPID1 is undefined, where spi_lld.h is included and should be defining it.
2012-04-12T06:44:55 < obnauticus> http://pastebin.com/hEYusJsD <- lines 161 & 162
2012-04-12T06:57:13 < obnauticus> d
2012-04-12T06:57:18 < obnauticus> Nevermind, I fugred it out.
2012-04-12T06:58:07 < obnauticus> flyback I am pretty sure the people who need a metaphor like that don't really give a shit how it's presented.
2012-04-12T06:58:20 < obnauticus> You should understand of all people, being the Jesus lover you are.
2012-04-12T06:58:25 < obnauticus> hence, the bible.
2012-04-12T07:01:43 < ureif> http://www.st.com/internet/com/Learning/stm32f0_seminars.jsp?d=nuhorizons_na&WT.mc_id=nuhorizons_apr12_stm32f0seminar
2012-04-12T07:02:07 < ureif> free seminar on STM32 F0
2012-04-12T07:02:32 < ureif> flyback, 100 internet points to you if you go to the seminar and shout CANUCKS in the middle.
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2012-04-12T13:17:21 < karlp> the f0 discovery board even comes with a proto board, neat
2012-04-12T13:17:53 < karlp> only 8usd, sexy
2012-04-12T13:18:01 <+jpa-> what is the main point of f0? cheap?
2012-04-12T13:18:06 < karlp> yeah,
2012-04-12T13:18:20 < karlp> a few less advanced periphs on the core,
2012-04-12T13:18:37 < karlp> lower power was at least once advertised as an advantage of m0 over m3
2012-04-12T13:18:59 <+jpa-> hmm.. $3, not so cheap
2012-04-12T13:20:09 <+jpa-> stm32L is much better looking :)
2012-04-12T13:20:15 <+jpa-> even if it costs $1 or $2 more
2012-04-12T13:20:18 < karlp> 32L is sexy
2012-04-12T13:22:08 < karlp> also, it's coming in an even smaller package than some of the f1s
2012-04-12T13:22:43 < karlp> ultra flat qfn, instead of very flat qfn :)
2012-04-12T13:23:03 <+jpa-> what, there are varying flatnesses? :)
2012-04-12T13:25:12 <+jpa-> stm32L in 48 tqfp is so small that it looks silly placed on a DIY pcb http://koti.kapsi.fi/jpa/stuff/pix/sphere.png
2012-04-12T13:25:38 < karlp> is that a single AA? or single AAA?
2012-04-12T13:25:46 <+jpa-> it's not a battery
2012-04-12T13:25:50 <+jpa-> it's an antenna
2012-04-12T13:25:54 <+jpa-> but board is 50x50mm
2012-04-12T13:26:05 <+jpa-> so yeah, about an AA size 
2012-04-12T13:26:06 < karlp> what are you making?
2012-04-12T13:26:23 <+jpa-> a sphere that would roll on its own
2012-04-12T13:26:56 < karlp> interesting.
2012-04-12T13:31:25 < karlp> so, what's the antenna for? telling the sphere to roll? or the sphere to told you that it rolled on it's own?
2012-04-12T13:32:27 <+jpa-> ah, telling where to roll :)
2012-04-12T13:32:44 <+jpa-> i guess more accurate would be "remote controlled sphere"
2012-04-12T13:41:34 < karlp> hmm, the f0 is more expensive than the f100, but the f100 is only specced to 24mhz, not 48mhz
2012-04-12T13:41:50 <+jpa-> f100 sucks :)
2012-04-12T13:41:56 < karlp> cheap though
2012-04-12T13:42:00 < karlp> works for most purposes.
2012-04-12T13:42:30 < karlp> in the same, "8/16bit replacement/migration path" type tasks, it's just fine
2012-04-12T13:42:39 <+jpa-> sure
2012-04-12T13:42:56 <+jpa-> but it uses quite much power compared to 8bits
2012-04-12T13:45:37 < karlp> dpends on the task yeah,
2012-04-12T13:45:41 < zyp> does it really?
2012-04-12T13:45:51 < karlp> but for some things, the processing power means you can go back to low power mode far faster than before
2012-04-12T13:45:55 < karlp> and it's not that much more
2012-04-12T13:46:22 < karlp> for some old designs that are contemplating a move to 32bit, just moving down to 3.3v and even _thinking_ about power is enough to make it worthwhile
2012-04-12T13:46:29 < karlp> depends what you're replacing
2012-04-12T13:46:34  * karlp shrugs
2012-04-12T13:46:45 < karlp> doesn't really seem to be a hugely worthwhile addition I agree.
2012-04-12T13:48:13 <+jpa-> isn't stm32f100 like >10mA in run mode, compared to 1mA for stm32L
2012-04-12T13:48:33 <+jpa-> so when they are about the same price, stm32l seems much nicer :)
2012-04-12T13:48:46 < karlp> iirc the datasheets used very different definitions of "run mode" though
2012-04-12T13:48:54 <+jpa-> hmm, may be
2012-04-12T13:49:01 < karlp> anyway, arm says m0 gives 10Dmips/mW, m3 gives 6Dmips/mW
2012-04-12T13:49:03 <+jpa-> power usage is always a difficult thing to define
2012-04-12T13:49:36 < karlp> m0 is old armv6t, not v7,
2012-04-12T13:49:53 < karlp> but they apparently added the instructions to allow interrupts and reset to be written in C not asm.
2012-04-12T13:50:21 < zyp> m0 is pretty much m3 without most of the thumb2-stuff
2012-04-12T13:50:28 <+jpa-> you need something special to write them in c?
2012-04-12T13:51:05 < karlp> jpa-: apparently that was an advantage of thumb2, it somehow allowed you to write them in C only, whereas arm7tdmi cores they were required to be in asm
2012-04-12T13:51:08  * karlp shrugs
2012-04-12T13:51:21 < zyp> v7 interrupt entry/exit conforms with EABI
2012-04-12T13:51:33 <+jpa-> sounds strange
2012-04-12T13:51:33 < zyp> can't speak for earlier archs, have no experience with those
2012-04-12T13:53:19 < zyp> «required to be in asm» is a bad way of phrasing it, nothing disallows having a compiler attribute to support a seperate interrupt ABI for defining ISRs in C
2012-04-12T13:53:46 < karlp> point taken :)
2012-04-12T13:54:17 < zyp> gcc have __attribute__((interrupt)) for that purpose
2012-04-12T13:55:08 < karlp> right, with v7 you get to leave that out entirely though, which is nice.
2012-04-12T13:55:50 < zyp> yep, because there is no difference between returning from a function or from an ISR
2012-04-12T13:56:25 <+jpa-> ah
2012-04-12T13:56:36 <+jpa-> i've always been wondering why there is that attribute when it works without
2012-04-12T13:57:37 < Thorn> you also can't nest interrupts in e.g. arm7tdmi unless you write a wrapper interrupt handler in assembly
2012-04-12T13:57:49 < zyp> v7 interrupt entry always pushes the registers that are caller-save in EABI, and interrupt exit is a return to a special addr that gets interpreted as «interrupt return»
2012-04-12T13:58:39 < zyp> that's also why gdb backtrace gets confused when you're in an ISR, because it sees the special addr as the return addr from the ISR
2012-04-12T13:59:22 <+jpa-> gdb somehow kind-of understands it
2012-04-12T13:59:35 < zyp> my version of gdb doesn't
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2012-04-12T13:59:54 <+jpa-> sometimes you get a proper backtrace and it even shows "signal handler called" in the middle.. but most of the time it doesn't quite work
2012-04-12T14:00:12 < zyp> never seen that here
2012-04-12T14:00:59 <+jpa-> http://koti.kapsi.fi/jpa/stuff/other/stm32-hardfault-backtrace.html   for example, though that applies only in the separate stacks -situation
2012-04-12T14:02:00 < zyp> ah
2012-04-12T14:04:00 < karlp> is that link stable jpa? or linked to from anywhere else?
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2012-04-12T14:11:07 < Thorn> also when illegal address is accessed a bus fault is thrown, it's escalated to a hard fault if you don't have the former enabled (it is disabled by default)
2012-04-12T14:11:25 < zyp> yep
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2012-04-12T14:19:33  * Laurenceb back for more fail
2012-04-12T14:20:07 < Laurenceb> &array[index] gives pointer to the element at index right?
2012-04-12T14:20:53 < Thorn> I'd think so, like array + index
2012-04-12T14:21:32 < Laurenceb> yeah
2012-04-12T14:21:48 < Laurenceb> hmm no clues then, time for 555 missing pulse detector
2012-04-12T14:22:11 < Thorn> use a cpld for pwm :p
2012-04-12T14:22:33 < Laurenceb> lol
2012-04-12T14:25:06 < Laurenceb> which involves finding a 555 timer
2012-04-12T14:26:16 < Thorn> I have ~10
2012-04-12T14:27:07 < karlp> you're using the 555 to what, create the right trigger for your scope or something?
2012-04-12T14:28:42 < Laurenceb> karlp: yes
2012-04-12T14:28:51 < Laurenceb> to search for possible pwm glitches
2012-04-12T14:29:58 < karlp> I thought you were already seeing them on the scope, just couldn't work out the cause?
2012-04-12T14:30:46 < Laurenceb> nope
2012-04-12T14:31:00 < Laurenceb> i see some glitches on the end of the pulses
2012-04-12T14:31:11 < Laurenceb> but it doesnt explain all the effects im seeing
2012-04-12T14:31:25 < Laurenceb> its like there are random phase jumps occasionally
2012-04-12T14:31:42 < Thorn> even a rigol can trigger on pulses wider/narrower than a set value
2012-04-12T14:32:02 < Thorn> if I understand what you're after right
2012-04-12T14:32:18 < Laurenceb> its pulse timing i want to trigger off
2012-04-12T14:32:29 < Laurenceb> so if the time between pulses differs
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2012-04-12T14:33:49 < Laurenceb> any ideas how to set that up?
2012-04-12T14:35:02 < Thorn> I still think a combination of pulse trigger and holdoff should be able to do it
2012-04-12T14:48:39 < Laurenceb> any idea what "Runt" is on my scope
2012-04-12T14:48:46 < Laurenceb> dongs would know
2012-04-12T14:49:01 < Laurenceb> dongs: you have a MSO4054 does you?
2012-04-12T14:49:11 < Laurenceb> *do you
2012-04-12T15:13:08 < Laurenceb> aha found the error
2012-04-12T15:13:21 < Laurenceb> one of my timers sometimes skips 440ns
2012-04-12T15:15:01 < Laurenceb> exactly two clocks... how odd
2012-04-12T15:15:41 < Laurenceb> lol i can do allen variance
2012-04-12T15:15:53 < Laurenceb> the ok timers are +-10ps over 1 second
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2012-04-12T15:18:08 <+Steffanx> nu
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2012-04-12T15:53:14 < Laurenceb> http://www.theregister.co.uk/2012/04/12/alien_dinosaurs/
2012-04-12T15:53:18 < Laurenceb> pmsl
2012-04-12T15:55:09 < Laurenceb> "They estimate that bits of Earth matter will have headed into the red dwarf Gliese 581 system some 20 light years away, which is thought to have a super-Earth orbiting at the edge of its habitable zone."
2012-04-12T15:55:12 < Laurenceb> ohh noooo
2012-04-12T15:55:24 <+Steffanx> blablabla :P
2012-04-12T15:58:14 <+Steffanx> "impact that killed the dinosaurs 65 million years ago may have blasted off small bits of dinosaur DNA out into space" Yeah 'may have'
2012-04-12T15:59:15 <+Steffanx> Hows it going with the pwm Laurenceb ?
2012-04-12T16:01:11 < Laurenceb> badly
2012-04-12T16:01:22 < Laurenceb> looks like the pwm is actually ok
2012-04-12T16:01:28 <+Steffanx> uh?
2012-04-12T16:01:40 <+Steffanx> So you still don't know where the 800mV comes from?
2012-04-12T16:01:43 < Laurenceb> no glitxhes
2012-04-12T16:01:46 < Laurenceb> oh no
2012-04-12T16:01:50 < Laurenceb> thaat a glitch
2012-04-12T16:01:54 < Laurenceb> *thats
2012-04-12T16:02:05 < Laurenceb> but its not effecting the signal
2012-04-12T16:02:20 < Laurenceb> im going to try and write some code to buffer to ram
2012-04-12T16:02:31 < Laurenceb> but i barely have enough ram to do this
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2012-04-12T16:04:47 < Laurenceb> the actual pwm phase looks ok
2012-04-12T16:04:57 < Laurenceb> just a few tens of ps jitter
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2012-04-12T16:19:52 <+Steffanx> https://www.destroyallsoftware.com/talks/wat :D :D
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2012-04-12T16:47:29 < Laurenceb> ah finally
2012-04-12T16:47:36 < Laurenceb> ive captured a glitch
2012-04-12T16:48:05  * karlp cheers
2012-04-12T16:48:31 <+Steffanx> That's not worth a 'cheer' :P
2012-04-12T16:49:09 <+Steffanx> It means either his hw is crappy or his software is crappy
2012-04-12T16:49:12 < Laurenceb> http://i.imgur.com/Ymr2T.png
2012-04-12T16:49:55 < Laurenceb> now i have to work out wtf im looking at
2012-04-12T16:50:03 <+Steffanx> I guess that between 300 and 400 is a 'glitch'?
2012-04-12T16:50:04 < karlp> that's what I was going to ask
2012-04-12T16:50:08 < Laurenceb> yes
2012-04-12T16:50:13 < Laurenceb> its quadrature sampled
2012-04-12T16:50:22 < Laurenceb> and theres two frequencies there
2012-04-12T16:50:29 < Laurenceb> with 62.5hz offset
2012-04-12T16:50:39 < Laurenceb> thats 1/62.5seconds of data
2012-04-12T16:51:04 < Laurenceb> it should look like a nice envelope
2012-04-12T16:51:57 -!- dekar [~dekar@studpool-wlan-74-80.fs.fbi.h-da.de] has joined ##stm32
2012-04-12T16:52:00 -!- mode/##stm32 [+v dekar] by ChanServ
2012-04-12T16:54:27 < Laurenceb> its not half way through the sample period either
2012-04-12T16:54:32 < Laurenceb> perplexing
2012-04-12T16:57:06 -!- izua_ [~izua@unaffiliated/izua] has joined ##stm32
2012-04-12T16:57:09 -!- mode/##stm32 [+v izua_] by ChanServ
2012-04-12T16:57:51 < Laurenceb> theres a slight DC offset as well
2012-04-12T16:58:45 -!- izua [~izua@unaffiliated/izua] has quit [Ping timeout: 248 seconds]
2012-04-12T17:01:15 < Laurenceb> aha
2012-04-12T17:01:35 < Laurenceb> the messed up data is precisely aligned with one dma half transfer
2012-04-12T17:01:55 < Laurenceb> no way thats a coincidence
2012-04-12T17:02:50 <+Steffanx> Probably not
2012-04-12T17:04:06 <+Steffanx> Free beer and/or cake for use when you find the problem? :)
2012-04-12T17:09:04 < Laurenceb> :P
2012-04-12T17:12:26 < dongs> Laurenceb: no, DPO3034
2012-04-12T17:12:36 < Laurenceb> ah
2012-04-12T17:12:50 < dongs> i dont need logicv analyzer in a scope
2012-04-12T17:12:54 < ziph> Laurenceb: What's the rest of the system doing during the DMA transfer?
2012-04-12T17:12:55 < dongs> i hae a proper pc based one
2012-04-12T17:13:16 < dongs> ive used i2c/spi decoding on scope but its stil a lot easier to scroll thnrough data/log on pc
2012-04-12T17:13:25 < Laurenceb> ziph: theres i2c and uSD card stuff running
2012-04-12T17:13:33 < Laurenceb> system timer firing off
2012-04-12T17:13:43 < ziph> Laurenceb: Anything that could tie up the bus that the DMA is running on for long periods of time?
2012-04-12T17:13:48 < Laurenceb> hmm
2012-04-12T17:13:50 < dongs> anyhow im supposed to be on vacation but im not getting muvch sleep
2012-04-12T17:13:55 < dongs> woke up at 5am and cant sleep.
2012-04-12T17:13:58 < dongs> cuz its like 11pm japtome.
2012-04-12T17:13:59 < dongs> japtime
2012-04-12T17:14:05 < Laurenceb> well - just looking at old data
2012-04-12T17:14:17 < ziph> Laurenceb: The other thing that will cause DMA's to go funny is sleep modes.
2012-04-12T17:14:20 < dongs> i found a old TDS2022B here in garage
2012-04-12T17:14:34 < Laurenceb> before i added i2c and loads of systick stuff the glitches were at fixed times
2012-04-12T17:14:44 < Laurenceb> ziph: i use standby mode
2012-04-12T17:15:01 < dongs> Laurenceb: dcid you want to make something wiht fit0013?
2012-04-12T17:15:02 < Laurenceb> adc is running at 50ksps or so
2012-04-12T17:15:11 < dongs> a proj here uses a ton of these vchips
2012-04-12T17:15:15 < Laurenceb> dongs: no, elonics e4000
2012-04-12T17:15:34 < Laurenceb> thats not many transfers right?
2012-04-12T17:15:37 < dongs> im saying, i can get the fit stuff for nothing + proper design/referencve docs
2012-04-12T17:15:46 < Laurenceb> cool
2012-04-12T17:15:52 < ziph> Laurenceb: The bus the transfer goes over isn't disabled in standby is it?
2012-04-12T17:15:58 < dongs> design me some SDR shit with that
2012-04-12T17:16:07 < Laurenceb> i need to look at what divers are around
2012-04-12T17:16:14 < dongs> is USB andwidth enough to sample 8mhz worth of rf and send it?
2012-04-12T17:16:23 < Laurenceb> maybe
2012-04-12T17:16:23 < ziph> Which USB?
2012-04-12T17:16:28 < dongs> 2.0 obviosuly
2012-04-12T17:16:40 < Laurenceb> ziph: i wake up from standby the same as reset
2012-04-12T17:16:41 < dongs> you could just do fit0013->adc->ezusbfx2 16bit fifo
2012-04-12T17:16:48 < dongs> to get raw data
2012-04-12T17:17:09 < ziph> dongs: FPGA with an OpenCore USB?
2012-04-12T17:17:16 < dongs> wai?
2012-04-12T17:17:20 < dongs> whats wrong with adc>fx2?
2012-04-12T17:17:24 < dongs> whats the advantage of fpga
2012-04-12T17:17:41 < ziph> Dunno, haven't looked at the ezusb's much.
2012-04-12T17:17:46 < dongs> oh.
2012-04-12T17:17:54 < dongs> its real simple in slave fifo mode you basicallyt just clock data in
2012-04-12T17:18:19 < dongs> or can use gpif, if the protocol is more complicated
2012-04-12T17:18:19 < ziph> Does it use Bulk, or Iso?
2012-04-12T17:18:24 < dongs> can be either
2012-04-12T17:18:39 < dongs> the fx2 part has 8051 that configures usb hardware etcv.l so you can vonfigure it for whatever
2012-04-12T17:18:49 < Laurenceb> hmm maybe i dont have enough cpu clks spare
2012-04-12T17:18:54 < Laurenceb> to process all this
2012-04-12T17:18:56 < dongs> have you acutally used the opencores usb core? we:re gonna be using it for a proj here
2012-04-12T17:19:05 < ziph> Yeah, I like the idea, not so much having to deal with another toolchain.
2012-04-12T17:19:11 < Laurenceb> and it goes out of sync and drops a dma half transfer
2012-04-12T17:19:15 < dongs> its not so bad though.
2012-04-12T17:19:20 < ziph> dongs: No, not yet. Maybe in the next 6 months.
2012-04-12T17:19:31 < dongs> ive done stuff with fx2 before, its rquite easy for just sending bulk raw data fast
2012-04-12T17:19:36 < Laurenceb> might _just_ explain my results
2012-04-12T17:19:51 < dongs> the chip sucks for pretty muh everythign else though
2012-04-12T17:19:58 < dongs> shitty peripherals etc.
2012-04-12T17:20:03 < ziph> dongs: And the descriptors you just set up yourself?
2012-04-12T17:20:06 < dongs> yes
2012-04-12T17:20:28 < ziph> dongs: There's a few SDR projects that have used Ethernet on an FPGA.
2012-04-12T17:20:43 < dongs> yeah but thats too much work
2012-04-12T17:20:46 < ziph> dongs: Making the set up a fair bit simpler.
2012-04-12T17:20:47 < dongs> i'd be more familar wiht fx2.
2012-04-12T17:20:48 < Laurenceb> exactly
2012-04-12T17:20:51 < dongs> just wondering if shit would fit
2012-04-12T17:20:55 < Laurenceb> the dvbt dongles just work
2012-04-12T17:20:57 < dongs> intousb2 banwidth
2012-04-12T17:21:07 < Laurenceb> or at least work if you have gnu radio
2012-04-12T17:21:12 < ziph> dvbt dongles have crappy dynamic range though, don't they?
2012-04-12T17:21:15 < dongs> so how much data is 8mhz worth of rf sampled at sat 10bit
2012-04-12T17:21:25 < dongs> sat=say
2012-04-12T17:21:26 < Laurenceb> im tempted to try and write some simpler c code
2012-04-12T17:21:31 < Laurenceb> to talk to fldigi
2012-04-12T17:22:16 < ziph> Am I in a room full of hams?
2012-04-12T17:22:35 < dongs> i think youmean 'hamfags'
2012-04-12T17:22:35 < dongs> and no
2012-04-12T17:22:53 < dongs> i'd be interested for fucvking around with DTV stuff mainly
2012-04-12T17:23:18 < ziph> Is it DVB-T where you live?
2012-04-12T17:23:22 < dongs> no.
2012-04-12T17:23:30 <+Steffanx> Something wrong with 'hams' ziph ?
2012-04-12T17:23:44 <+Steffanx> ...............................................
2012-04-12T17:23:50 <+Steffanx> oops
2012-04-12T17:23:54 < dongs> isdb. and i have all proper hardware to en/de code it but just for fun.
2012-04-12T17:23:58 < ziph> Steffanx: -. ---
2012-04-12T17:24:33 <+Steffanx> You don't have to learn morse anymore for your license here :)
2012-04-12T17:24:47 < ziph> Yeah but no real ham doesn't know morse.
2012-04-12T17:24:58 < ziph> ^ Or know how to start a flamewar about morse.
2012-04-12T17:25:35 < ziph> Cool ISDB is used for both TV and Radio.
2012-04-12T17:26:43 < ziph> dongs: You might want to implement part of it in an FPGA instead of doing it all on the PC.
2012-04-12T17:26:53 < ziph> dongs: Particularly the front end FFT.
2012-04-12T17:27:11 <+dekar> ziph, what does dynamic range mean? the levels covered by the 8bit resolution?
2012-04-12T17:27:31 <+dekar> I think you can adjust the gain to do that
2012-04-12T17:28:02 < Laurenceb> in b4 FPGA morse decoder
2012-04-12T17:28:05 < ziph> dekar: It's the ratio of the lowest signal you can receive (usually limited by the noise floor) to the highest signal you can receive (usually limited by distortion).
2012-04-12T17:29:13 <+dekar> but you can adjust that by tuning the gain, can't you? I mean if the highest signal is clipping off, then you can just lower the gain
2012-04-12T17:29:41 < ziph> Yeah but then not everything is in software. ;)
2012-04-12T17:29:46 < dongs> ziph: someone already did that
2012-04-12T17:29:50 < dongs> http://www.mirics.com/products.php?navid=59
2012-04-12T17:29:52 < ziph> And your dynamic range in the band that your sampling is still poor.
2012-04-12T17:30:19 < Laurenceb> ah found the issue
2012-04-12T17:30:26 < Laurenceb> im missing a dma half transfer
2012-04-12T17:30:26 < ziph> dongs: Neat.
2012-04-12T17:30:43 < Laurenceb> too much for the cpu to handle
2012-04-12T17:31:02 < Laurenceb> never saw this happening :-/
2012-04-12T17:31:06 <+dekar> ziph, but gnu radio is able to adjust the gain, so the software can adjust the hardware on demand
2012-04-12T17:31:12 -!- peabody124 [~peabody12@c-98-201-56-63.hsd1.tx.comcast.net] has joined ##stm32
2012-04-12T17:31:26 < dongs> gnuradio uses python.
2012-04-12T17:31:28 < Laurenceb> theres a slashdot article on using dvbt dongles somewhere
2012-04-12T17:31:29 < dongs> so thats automativcally out
2012-04-12T17:31:30 < Laurenceb> lol
2012-04-12T17:31:42 < ziph> Laurenceb: You mean the core is preventing the DMA transfer from being able to keep up?
2012-04-12T17:31:50 < Laurenceb> no i dont think so
2012-04-12T17:32:01 <+dekar> dongs, in any case the libusb driver supports gain adjustment and I think even auto gain
2012-04-12T17:32:06 < Laurenceb> its missing a transfer as it cant service the interrupt in time
2012-04-12T17:32:06 < ziph> dongs: Yeah, the whole gnuradio thing is a bit strange.
2012-04-12T17:32:18 < zyp> Laurenceb, sounds like bad concurrency design
2012-04-12T17:32:19 < Laurenceb> dongs: you need to polish your python more
2012-04-12T17:32:39 < ziph> Laurenceb: Oh, would chained DMA help?
2012-04-12T17:32:51 < ziph> Laurenceb: Or enable interrupt pre-emption?
2012-04-12T17:32:52 < Laurenceb> im not sure
2012-04-12T17:32:57 < Laurenceb> yeah already have
2012-04-12T17:33:11 < Laurenceb> im confused... it should easily be able to handle this
2012-04-12T17:33:13 < dongs> u broke ur lunix with python??
2012-04-12T17:33:40 < ziph> Is Linux some special version of RedHat?
2012-04-12T17:33:44 < Laurenceb> lol
2012-04-12T17:34:14 < Laurenceb> ok, so, i have systick and dma half transfer interrupts in the top pre-emption group
2012-04-12T17:34:15 <+dekar> http://wiki.spench.net/wiki/Gr-baz#Specs
2012-04-12T17:34:27 <+dekar> it mentions a dynamic range of 48dB
2012-04-12T17:34:34 < Laurenceb> that means only systick can delay the dma interrupt right?
2012-04-12T17:34:37 <+dekar> doesn't sound too bad
2012-04-12T17:35:07 < ziph> dekar: It's terrible in traditional radio.
2012-04-12T17:35:14 < Laurenceb> i cant see where the clk cycles are going :S
2012-04-12T17:35:36 <+dekar> but isn't 3dB a 10 times stronger signal?
2012-04-12T17:35:59 < ziph> 10dB is, in power
2012-04-12T17:36:05 < ziph> 3dB is approximately double
2012-04-12T17:36:08 <+dekar> I don't know much about radio, but dB is logarithmic
2012-04-12T17:36:21 < dongs> Quality
2012-04-12T17:36:22 < dongs> Don't expect anything remotely close to a USRP.
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2012-04-12T17:36:42 <+dekar> idc about USRP, never played with radio before anyway
2012-04-12T17:37:21 <+dekar> to me 48dB sounds like a lot
2012-04-12T17:37:22 < Laurenceb> USRP is nutty price
2012-04-12T17:37:34 < ziph> dekar: Typical receivers do 100dB+
2012-04-12T17:37:35 <+dekar> I don't see why you would need that
2012-04-12T17:38:23 <+dekar> so with a lower dynamic range your peak signal can't be as strong right?
2012-04-12T17:38:23 < ziph> Laurenceb: The problem is that the dynamic range of received RF signals varies hugely too.
2012-04-12T17:38:36 <+dekar> so just use a worse antenna and you get a weaker signal
2012-04-12T17:38:57 < ziph> It depends if it is limited by distortion. If it is, attenuation will help.
2012-04-12T17:39:01 <+dekar> I don't really understand the problem, forgive my ignorance
2012-04-12T17:39:19 <+dekar> just never worked with radio
2012-04-12T17:40:15 < karlp> that's because working with radio will driV3 yoU inSnAE!
2012-04-12T17:40:25 < ziph> :)
2012-04-12T17:40:36 <+dekar> no waii, I am insane already :)
2012-04-12T17:41:05 <+Steffanx> Compare to me you aren;t
2012-04-12T17:41:12 <+dekar> soldering 50 cables to my ps3 took away my last sanity: http://dl.dropbox.com/u/28467113/ps3/IMG_20120411_143829.jpg
2012-04-12T17:41:13 <+Steffanx> compared
2012-04-12T17:41:36 <+dekar> I guess I inhaled too many fumes
2012-04-12T17:41:45 < ziph> dekar: Have a look at the free space loss equation, it might give you some idea of why you need dynamic range.
2012-04-12T17:42:11 < Laurenceb> i was going to use one for high altitude ballooning
2012-04-12T17:43:11 < dongs> high speed blogging
2012-04-12T17:43:13 < dongs> is more like it
2012-04-12T17:44:06 < dongs> bad news for Laurenceb Raspberry Pi passes (important) CE and (to a lesser extent) FCC regulations
2012-04-12T17:44:21 < Laurenceb> oh noes
2012-04-12T17:44:25 <+dekar> why is that bad?
2012-04-12T17:44:29 < ziph> Why would it need to pass FCC?
2012-04-12T17:44:30 < Laurenceb> it might ship
2012-04-12T17:44:34 < dongs> cuz he finally wont have a reason to bitch
2012-04-12T17:44:41 <+dekar> flexbox2 will be checked for CE this month as well :)
2012-04-12T17:44:42 <+Steffanx> ignore him dekar :)
2012-04-12T17:44:49 <+Steffanx> CE = bullshit :)
2012-04-12T17:45:01 <+dekar> idk, but our company takes it serious
2012-04-12T17:45:11 <+dekar> I would just stick it on it without testing :P
2012-04-12T17:45:11 < Laurenceb> inCEst
2012-04-12T17:45:27 < ziph> How do you even do CE/FCC on a device that doesn't ship with a power supply?
2012-04-12T17:45:38 < dongs> k gonna try to get some more zzs
2012-04-12T17:45:45 < karlp> "fair and reasonably standard" power supply
2012-04-12T17:45:48 < Laurenceb> my stm32f4 discovery has ce
2012-04-12T17:45:57 < karlp> same way they test things that need hdmi output
2012-04-12T17:45:58 < dongs> Laurenceb: poke me after im back fvrom vacation if you wanna troll any SDR stuff
2012-04-12T17:46:00 <+dekar> ziph, they connect it to a PC - last time the PC crashed XD
2012-04-12T17:46:07 < Laurenceb> enjoy the break
2012-04-12T17:46:09 <+dekar> they didn't realize though
2012-04-12T17:46:12 <+dekar> so we passed
2012-04-12T17:46:16 < dongs> Laurenceb: i would have until i found a scope here.
2012-04-12T17:46:20 < dongs> now i have no excuse.
2012-04-12T17:46:21 < ziph> Oh, it's a USB device?
2012-04-12T17:46:21 < dongs> ;(
2012-04-12T17:46:22 <+Steffanx> I love that poster with the CE logo on it ::)
2012-04-12T17:46:32 <+Steffanx> Fake CE logo on a poster about condoms :)
2012-04-12T17:46:50 < ziph> Do European condoms have a CE logo on them?
2012-04-12T17:46:52 <+dekar> microsoft messed the CE up on the xbox controllers, it's the china export one
2012-04-12T17:47:06 <+dekar> ziph, CE is for electronic lol
2012-04-12T17:47:09 <+dekar> *electronics
2012-04-12T17:47:18  * ziph resists the obvious too small for a logo joke.
2012-04-12T17:48:10 <+Steffanx> see the rpi blog ziph
2012-04-12T17:48:37 <+dekar> I actually like the idea of the rpi, seems to be the better arduino :)
2012-04-12T17:49:06 <+Steffanx> better ..
2012-04-12T17:49:10 <+Steffanx> It's different :)
2012-04-12T17:49:12 < ziph> Yeah, I want a LED flasher with a 200Mb working set. :)
2012-04-12T17:49:15 < karlp> better for some things, way worse for others.
2012-04-12T17:49:45 <+dekar> ziph, you don't need to flash linux to use it
2012-04-12T17:50:06 < karlp> hahah
2012-04-12T17:50:09 < karlp> right....
2012-04-12T17:50:10 < ziph> Aren't all the peripherals proprietary?
2012-04-12T17:50:18 < karlp> you don't _have_ to
2012-04-12T17:50:22 <+dekar> well idk, didn't follow the project tbh
2012-04-12T17:50:25 < ziph> And most of the core itself for that matter?
2012-04-12T17:50:26 <+Steffanx> ziph no
2012-04-12T17:50:36 <+Steffanx> They released some info about some peripherals
2012-04-12T17:50:42 <+dekar> I still have one of those panda boards and I haven't touched it so far
2012-04-12T17:50:44 <+dekar> just no time
2012-04-12T17:51:05 <+dekar> http://dl.dropbox.com/u/28467113/panda.jpg
2012-04-12T17:51:18 <+Steffanx> is there something you don't have?
2012-04-12T17:51:26 <+dekar> idk, is there? :P
2012-04-12T17:51:26 < ziph> dekar: I'm so short of time I haven't been able to order a bunch of dev boards to have no time to play with. ;)
2012-04-12T17:51:37 < zyp> Steffanx, enough time? :p
2012-04-12T17:51:40 <+Steffanx> Yeah
2012-04-12T17:52:01 <+Steffanx> You can buy my time ziph
2012-04-12T17:52:13 <+dekar> ziph, I didn't order it, a daughter company of us evaluated them and decided not to use any OMAP
2012-04-12T17:52:19 < ziph> Steffanx: You'll buy toys for me and watch them collect dust?
2012-04-12T17:52:28 <+dekar> they switched to Atom and then to Tegra2
2012-04-12T17:52:36 <+dekar> and now to TI Sitara I think
2012-04-12T17:52:43 <+dekar> so we have tons of boards no one uses
2012-04-12T17:52:56 <+Steffanx> I already do that ziph
2012-04-12T17:54:15 <+dekar> the tegra2 boards are Q7 boards though and I have no Q7 mainboards, any ideas on how to use them?
2012-04-12T17:54:29 < zyp> Q7?
2012-04-12T17:55:34 < zyp> ah, this I guess: http://www.qseven-standard.org/
2012-04-12T17:55:36 <+dekar> it's some embedded main board standard
2012-04-12T17:55:51 <+dekar> but the ones the company used were like 1200€ iirc
2012-04-12T17:55:59 <+dekar> so buying some of those isn't an option XD
2012-04-12T17:56:11 <+dekar> but well I don't really like tegra to begin with
2012-04-12T17:56:19 <+dekar> linux support is still bad
2012-04-12T17:56:38 < dongs> pandafail
2012-04-12T17:56:43 < zyp> isn't tegra2 quite old nowadays?
2012-04-12T17:56:46 <+Steffanx> dongs fail
2012-04-12T17:57:17 <+dekar> zyp, idk, is tegra3 available?
2012-04-12T17:57:40 <+dekar> I think tegra2 is similar to the OMAP4 performance wise
2012-04-12T17:57:44 <+dekar> so that's not bad imo
2012-04-12T17:57:45 < zyp> we've got lots of tegra3 stuff at work for months
2012-04-12T17:58:17 <+dekar> well the product they work on doesn't need the performance to begin with, but don't get me started
2012-04-12T17:58:35 <+dekar> rip would be enough
2012-04-12T17:58:39 <+dekar> *rpi
2012-04-12T17:58:47 <+dekar> stupid auto correction :/
2012-04-12T17:58:51 < zyp> I haven't worked with tegra myself yet, I'm mainly working with OMAP
2012-04-12T18:00:49 <+dekar> well I only work with the stm32 and that is overkill already, all I do is i2c :)
2012-04-12T18:01:39 < zyp> stm32 is just a hobby for me :)
2012-04-12T18:08:11 < Laurenceb> dma transfer complete occurs once the programmed number of transactions occur right?
2012-04-12T18:08:22 < Laurenceb> not that number +1 (in circular mode)
2012-04-12T18:09:40 < Laurenceb> i cant work this out
2012-04-12T18:10:22 < Laurenceb> i read transfer1, 2,3,4,3,5,6,7,8 etc
2012-04-12T18:10:47 < Laurenceb> *half transfer
2012-04-12T18:14:53  * Laurenceb goes crazy
2012-04-12T18:15:13 < Laurenceb> is there a way to explain that if a half transfer is missed?
2012-04-12T18:15:25 <+jpa-> karlp: stable, but not linked from anywhere because i'm not quite sure about what i'm saying there
2012-04-12T18:15:46 < zyp> Laurenceb, not without reading the code, and your code is unreadable, so that's impossible
2012-04-12T18:16:15 < Laurenceb> i mean in theory
2012-04-12T18:16:41 < Laurenceb> hmm i have an idea
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2012-04-12T18:18:58 < dongs> ^ macfag
2012-04-12T18:19:14 <+Steffanx> And you are .. Mr. Negative?
2012-04-12T18:19:28 <+Steffanx> Mr. Troll?
2012-04-12T18:19:36 <+Steffanx> Mr. [whatever]
2012-04-12T18:20:27 <+Steffanx> Mr. IgnoreSteffanx :)
2012-04-12T18:20:42 < dongs> I use windows 7 professional x64 SP1
2012-04-12T18:21:55 <+Steffanx> OS X and ^^ here :)
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2012-04-12T18:25:50 < Laurenceb> wtf
2012-04-12T18:25:57 < Laurenceb> ok my dma is working ok
2012-04-12T18:26:10 <+Steffanx> or not
2012-04-12T18:26:13 < Laurenceb> its just sometimes half transfers screw up
2012-04-12T18:26:26 < Laurenceb> and i get the same half transfer twice
2012-04-12T18:27:09 < dongs> is this on your lolgger?
2012-04-12T18:27:25 < Laurenceb> yes
2012-04-12T18:27:35 < Laurenceb> about one in 10^5 half transfers this happens
2012-04-12T18:27:45 < Laurenceb> its not due to insufficient time to process the data
2012-04-12T18:27:50 < Laurenceb> just checked for that
2012-04-12T18:27:55 < karlp> improper clearing of interrupt complete flags?
2012-04-12T18:28:10 < Laurenceb> hmm
2012-04-12T18:28:13 < karlp> if your dma interrupt gets preempted,
2012-04-12T18:28:21 < karlp> and then the flag isn't properly clears, and it runs again?
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2012-04-12T18:28:49 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/blob/master/interrupts.c#L133
2012-04-12T18:29:00 < Laurenceb> it cant be prempted
2012-04-12T18:29:10 < Laurenceb> as its max preemption priority
2012-04-12T18:30:09 < karlp> I thought you said systick was higher?
2012-04-12T18:30:13 < Laurenceb> nope
2012-04-12T18:30:20 < karlp> well, just an idea :)
2012-04-12T18:30:27 < Laurenceb> not now, systick and dma are both max
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2012-04-12T18:30:43 < Laurenceb> group priority is higher on systick
2012-04-12T18:31:07 < zyp> how fast is PPG_LO_Filter?
2012-04-12T18:31:08 < karlp> systick is only every 10ms?
2012-04-12T18:32:25 < Laurenceb> 10ms yes
2012-04-12T18:32:58 < Laurenceb> filter runs in about 100us or so
2012-04-12T18:33:06 < Laurenceb> at 1KHz
2012-04-12T18:33:11 < Laurenceb> approx
2012-04-12T18:34:40 < Laurenceb> im running it with some code on isr entry to check for both half transfer flags
2012-04-12T18:34:50 < Laurenceb> it never gets triggered
2012-04-12T18:35:00 < Laurenceb> but theres still the same corruption of the dma data
2012-04-12T18:35:49 < zyp> highest priority interrupt, running at 1 kHz and takes around 10% of the time
2012-04-12T18:35:56 < Laurenceb> yes
2012-04-12T18:35:58 < zyp> sounds like a receipt for fail
2012-04-12T18:36:33 < Laurenceb> why?
2012-04-12T18:36:56 < dongs> lemme think about it while youre interrupting me 10% of the time.
2012-04-12T18:37:02 < Laurenceb> i2c is using method 2
2012-04-12T18:37:33 < Laurenceb> hmm ill try it low priority
2012-04-12T18:37:45 < zyp> because in the relative scale of things it's not a high priority job
2012-04-12T18:39:51 < zyp> you are reserving a continous noninterruptible block of 100us for a task that have about 1000us to complete
2012-04-12T18:41:47 < Laurenceb> i guess
2012-04-12T18:42:42 < Laurenceb> ok retrying with it in a low preemption group, same issues
2012-04-12T18:43:27 < Laurenceb> i get the same dma half transfer twice, with another half transfer in the middle
2012-04-12T18:43:55 < Laurenceb> n,n+1,n,n+2,n+3
2012-04-12T18:46:27 <+jpa-> and you are not doing anything silly like writing the dma channel registers while transfer is ongoing?
2012-04-12T18:46:39 < Laurenceb> no they arent touched
2012-04-12T18:48:18 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/blob/master/adc.c#L74
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2012-04-12T18:52:00 < dongs> ghettohub  doesnt load here
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2012-04-12T18:52:17 <+jpa-> loads fine for me
2012-04-12T19:11:28 < Laurenceb> hmmm
2012-04-12T19:11:39 < Laurenceb> seems to be connected to fatfs code
2012-04-12T19:11:45 < Laurenceb> im using fatfs with dma
2012-04-12T19:12:06 < Laurenceb> if i remove the card and force it to run without fatfs it seems to be ok
2012-04-12T19:13:38 <+jpa-> hmm.. what priority for fatfs dma?
2012-04-12T19:15:28 < Laurenceb> "very_high"
2012-04-12T19:15:37 < Laurenceb> as opposed to high for the adc
2012-04-12T19:16:07 <+jpa-> well there is your problem :)
2012-04-12T19:16:26 <+jpa-> it will block your ADC transfers when it transfers the 512 byte sector :)
2012-04-12T19:16:38 < Laurenceb> hmm i see
2012-04-12T19:17:32 < Laurenceb> but the fatfs code also reinitialises the dma controller
2012-04-12T19:17:34 < Laurenceb> is that bad?
2012-04-12T19:17:54 <+jpa-> depends on if it writes something that doesn't work for you
2012-04-12T19:18:25 < Laurenceb> https://github.com/Laurenceb/STM32-Logger/blob/master/Util/fat_fs/src/sd_spi_stm32.c#L408
2012-04-12T19:19:06 <+jpa-> i assume that it is a different dma channel? then it doesn't matter
2012-04-12T19:19:09 <+jpa-> they are separate anyway
2012-04-12T19:19:15 < Laurenceb> i see
2012-04-12T19:19:51 < Laurenceb> this seems to work now
2012-04-12T19:20:20 <+Steffanx> 'seems' :P
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2012-04-12T19:20:56 < Laurenceb> the glitches are very rare
2012-04-12T19:21:15 <+jpa-> Laurenceb is always happy for a few minutes after he discovers a new potential reason
2012-04-12T19:21:33 < Laurenceb> lol
2012-04-12T19:21:54 <+Steffanx> Hehe jpa-
2012-04-12T19:22:45 < Laurenceb> 30minutes with no glitches
2012-04-12T19:23:25 <+jpa-> it will come
2012-04-12T19:25:07  * izua_ crosses fingers
2012-04-12T19:25:37 <+izua_> Laurenceb: does your logger also emulate MSC over USB, or do you have to grab data by taking the card out?
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2012-04-12T19:38:01 < Laurenceb> nope still ok
2012-04-12T19:38:06 < Laurenceb> looks like thats fixe dit
2012-04-12T19:38:18 < Laurenceb> izua: emulated mass storage
2012-04-12T19:38:19 < karlp> so what did you do in the end?
2012-04-12T19:38:34 < Laurenceb> atm ive made fatfs use polled spi
2012-04-12T19:38:47 < Laurenceb> ill redo it in a sec with lower dma priority
2012-04-12T19:43:28 <+izua_> uh.. what do you mean emulated?
2012-04-12T19:43:51 <+izua_> it locks up when connected to usb, and dumps sd sectors on request and performs its other functions when disconnected?
2012-04-12T19:47:00 < Laurenceb> huh
2012-04-12T19:47:12 < Laurenceb> you trying my code or something?
2012-04-12T19:47:41 <+izua_> i might.. :D
2012-04-12T19:47:42 < Laurenceb> sorry - its just plain mass storage
2012-04-12T19:47:51 <+izua_> will have to mess with a fat fs some weeks later
2012-04-12T19:48:11 <+izua_> ah, you said emulated and wasn't sure how that fits
2012-04-12T19:48:14 <+Steffanx> and SD?
2012-04-12T19:48:22 <+Steffanx> SD card
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2012-04-12T19:49:03 < TitanMKD> hi
2012-04-12T19:50:15 < Laurenceb> uSD on spi - http://i.imgur.com/Wt0vU.jpg
2012-04-12T19:50:17 <+Steffanx> lo
2012-04-12T19:50:26 <+Steffanx> Use F4 +
2012-04-12T19:50:29 <+Steffanx> SD interface :)
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2012-04-12T19:50:40 < jon1012> hi
2012-04-12T19:50:45 <+Steffanx> Lo
2012-04-12T19:50:58 < jon1012> on stm32f4 datasheet it's not clear... SWDIO is PA1 or PA13 ?
2012-04-12T19:51:08 < jon1012> both is written :-/
2012-04-12T19:51:23 < jon1012> (if someone knows :))
2012-04-12T19:51:24 <+izua_> Laurenceb: i like your debugging style
2012-04-12T19:51:32 <+izua_> half your files say "this is fucked" :D
2012-04-12T19:51:39 < jon1012> (or I'll try to follow the traces on the discovery board)
2012-04-12T19:52:31 <+Steffanx> No he broke is hardware izua_ :)
2012-04-12T19:53:46 < Laurenceb> bbl, thanks for the help
2012-04-12T19:54:22 < zyp> jon1012, PA13
2012-04-12T19:57:17 < jon1012> zyp, thanks !
2012-04-12T19:57:28 < zyp> where does it say PA1?
2012-04-12T19:58:19 < jon1012> page 51/167
2012-04-12T19:58:26 < jon1012> DOC ID 022152 REV 2
2012-04-12T20:00:27 < jon1012> I'll have to cut the traces and rewire my pcbs :-/
2012-04-12T20:00:50 <+Steffanx> oops
2012-04-12T20:04:38 < zyp> jon1012, it's a typo, it's supposed to say PA13 there, because PA1 is listed on another page of the same table
2012-04-12T20:05:40 < jon1012> zyp, yeah I just figured out
2012-04-12T20:06:21 < zyp> rev1 of datasheet says PA13 in the same place but does not have the «(JTMS-SWDIO)» text in the same cell
2012-04-12T20:06:41 < zyp> so I guess they removed the 3 from 13 when they added the text
2012-04-12T20:07:03 <+Steffanx> oops
2012-04-12T20:08:06 < jon1012> my fault... I promised myself to never blindly trust an ST datasheet... but I failed
2012-04-12T20:09:27 < zyp> doesn't matter, pin numbers are right
2012-04-12T20:10:27 < jon1012> but I make my parts in eagle, then I forget about pin numbers
2012-04-12T20:10:31 < jon1012> :)
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2012-04-12T21:42:43 < Laurenceb_> sup
2012-04-12T21:42:53 <+Steffanx> Tha sky bro
2012-04-12T21:44:18 < Laurenceb_> lol
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2012-04-12T23:37:27 < Thorn> http://michelebavaro.blogspot.com/2012/04/spring-news-in-gnss-and-sdr-domain.html
2012-04-12T23:39:48 < Laurenceb_> i used to work with that guy
2012-04-12T23:40:50 < Laurenceb_> holy shit he did it fast
2012-04-12T23:42:27 < Laurenceb_> wondered how long before someone got SDR-GPS running on a dongle
2012-04-12T23:42:59 < Thorn> I wonder if he's going to release any code
2012-04-12T23:43:16 <+Steffanx> I don't even know whatt i'm looking at
2012-04-12T23:43:21 < Thorn> not that I could understand it well enough anyway lol
2012-04-12T23:44:23 < Laurenceb_> ive only got matlab code running
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2012-04-12T23:45:26 < Thorn> huh http://gnss-sdr.ru/
2012-04-12T23:46:42 < Thorn> they're using scilab
2012-04-12T23:47:09 <+Steffanx> GNSS is easier or .. ?
2012-04-12T23:47:15 <+Steffanx> easier than gps
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2012-04-12T23:47:43 <+Steffanx> or IS GPS a GNSS ? :P
2012-04-12T23:47:48 < Thorn> gnss is a general term
2012-04-12T23:48:00 <+Steffanx> Ah ok, so then i still don't know what i'm looking at
2012-04-12T23:48:06 < Thorn> global navigational satellite system
2012-04-12T23:48:54 <+Steffanx> Ah, now i read it :)
2012-04-12T23:49:11 <+Steffanx> Next time read everything before you ask stupid questions Steffanx :)
2012-04-12T23:50:52 <+Steffanx> So just forget everything i said :P
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2012-04-12T23:53:18 < Thorn> it's a running joke here after the 2010 launch failure that Glonass is the first underwater navigation satellite system
2012-04-12T23:55:00 <+Steffanx> Uh?
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2012-04-12T23:55:53 <+Steffanx> dongs say it: ^^
2012-04-12T23:58:06 <+dekar> Glonoass lol, what was the average time those things stay in orbit? like 7 months?
2012-04-12T23:58:32 < Laurenceb_> more like 7 seconds
--- Day changed Fri Apr 13 2012
2012-04-13T00:09:12 <+dekar> "Since the first generation satellites operated for 3 years each, to keep the system at full capacity, two launches per year would have been necessary to maintain the full network of 24 satellites." http://en.wikipedia.org/wiki/GLONASS
2012-04-13T00:09:19 <+dekar> 3 years, still lol
2012-04-13T00:16:03 < Laurenceb_> i worked on Galileo for a year or so a while back
2012-04-13T00:16:28 < Laurenceb_> its really simple - basically a vertex4 and an off the shelf frequency standard
2012-04-13T00:16:55 < Laurenceb_> then some RF travelling wave tube power amp thingy off a 1970s soviet radar sat
2012-04-13T00:19:58 < Laurenceb_> satellite stuff is really boring
2012-04-13T00:20:33 < Laurenceb_> funniest thing about galileo is it has a gps receiver onboard
2012-04-13T00:25:02 < Laurenceb_> only used for orbital insertion iirc
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2012-04-13T12:23:07 < Laurenceb> dongs:ping
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2012-04-13T13:07:35 <+Steffanx> nu
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2012-04-13T13:53:55 < Laurenceb> anyone here used fatfs?
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2012-04-13T13:55:22 < Laurenceb> im trying to work out how to best to pre-allocation
2012-04-13T13:55:28 < Laurenceb> *do
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2012-04-13T15:35:52 < Laurenceb> whats the difference between file size and file pointer?
2012-04-13T15:36:07 < Laurenceb> sorry - f_tell
2012-04-13T15:36:48 <+Steffanx> :)
2012-04-13T15:36:51 < zyp> file size is the total size of the file, while file pointer is where you're located at in the file, which may not be at the end
2012-04-13T15:37:55 < Laurenceb> hmm
2012-04-13T15:38:07 < Laurenceb> so i used lseek to pre-allocate
2012-04-13T15:38:23 < Laurenceb> but at some point im going to have to allocate some more
2012-04-13T15:39:21 < Laurenceb> if the file is opened as a new file
2012-04-13T15:39:42 < Laurenceb> if the result from f_tell and f_size the same?
2012-04-13T15:39:46 < Laurenceb> *is
2012-04-13T15:40:50 < zyp> should be
2012-04-13T15:43:07 < Laurenceb> what happens if i open as append?
2012-04-13T15:43:37 < Laurenceb> the pointer is zero at the end of the old data?
2012-04-13T15:49:19 < zyp> no, I guess the pointer should be initiated to the end of the old data
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2012-04-13T15:49:46 < zyp> note that I've never used fatfs, I'm just thinking how it works in posix
2012-04-13T15:50:53 < Laurenceb> so you think the pointer is always offset from start of the file?
2012-04-13T15:51:07 < Laurenceb> then why is there separate file size
2012-04-13T15:51:17 < Laurenceb> http://elm-chan.org/fsw/ff/en/lseek.html
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2012-04-13T15:53:07 < zyp> in posix, ftell will give you the current position relative to the start of the file
2012-04-13T15:53:16 < zyp> which may or may not be at the end
2012-04-13T15:53:38 < zyp> if you are at the end, ftell will give you the size of the file
2012-04-13T15:55:41 < Laurenceb> ok
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2012-04-13T15:57:07 < Laurenceb> oh wait they are different
2012-04-13T15:57:18 < Laurenceb> the pre-allocated area appears in the file size
2012-04-13T15:57:23 < Laurenceb> i see now
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2012-04-13T17:20:30 < Laurenceb> hmf
2012-04-13T17:20:42 < Laurenceb> still getting glitches with low priority dma
2012-04-13T17:20:51 < Laurenceb> without dma on the sd card its fine
2012-04-13T17:26:00 < Laurenceb> maybe something wrong with fatfs dma code?
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2012-04-13T18:00:38 < Laurenceb> argg
2012-04-13T18:00:42 <+Steffanx> arghh
2012-04-13T18:00:44 < Laurenceb> i think the dma is buggt
2012-04-13T18:00:48 <+Steffanx> No it's not
2012-04-13T18:00:53 <+Steffanx> The code is maybe :P
2012-04-13T18:01:02 < Laurenceb> can you have more than one transaction at a time?
2012-04-13T18:01:11 < Laurenceb> im missing occasional half transfers
2012-04-13T18:01:28 < Laurenceb> if theres a second dma channel running
2012-04-13T18:02:32 < Laurenceb> now i cant work out how to debug it
2012-04-13T18:02:40 < Laurenceb> or even program it
2012-04-13T18:02:46 < Laurenceb> i think ive bricked it
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2012-04-13T18:30:10 < Laurenceb> can anyone help me with jtag?
2012-04-13T18:31:32 < zyp> what do you need help with?
2012-04-13T18:36:30 < Laurenceb> i cant connect
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2012-04-13T18:36:39 < Laurenceb> or rather i can, but only once
2012-04-13T18:37:00 < Laurenceb> so i power on, connect, then soon as i fire up gdb it goes to sleep
2012-04-13T18:37:14 < Laurenceb> i cant run or continue from gdb
2012-04-13T18:37:19 < Laurenceb> only load
2012-04-13T18:37:43 < Laurenceb> and gdb thinks its in cs__premain
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2012-04-13T18:39:46 < zyp> bad connections again?
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2012-04-13T18:47:01 < Laurenceb> no
2012-04-13T18:47:05 < Laurenceb> something with code
2012-04-13T18:48:08 < Laurenceb> what happens when gdb connects?
2012-04-13T18:48:13 < Laurenceb> it pulls reset low?
2012-04-13T18:49:25 < zyp> it shouldn't
2012-04-13T18:50:53 < Laurenceb> hmm
2012-04-13T18:53:33 < Laurenceb> i cant work this out
2012-04-13T18:53:41 < Laurenceb> http://pastebin.com/S5jHvZa4  <- does that look sane?
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2012-04-13T18:55:35 < Laurenceb> for some reason it breaks and gives me stupidly long files
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2012-04-13T19:01:33 < zyp> no, it's not sane
2012-04-13T19:02:21 < zyp> a better if-test would be if(f_tell(…) - f_size(…) < PRE_SIZE / 2)
2012-04-13T19:03:26 < zyp> your if-test would be true whenever you're in the top half of a preallocated block, regardless of whether the block after it has been preallocated or not
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2012-04-13T19:06:34  * Laurenceb brainfail
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2012-04-13T19:09:04 <+Steffanx> Welcome on earth Laurenceb
2012-04-13T19:11:32 < Laurenceb> thanks for the help
2012-04-13T19:12:41 < zyp> oh, and I obviously meant f_size(…) - f_tell(…)
2012-04-13T19:12:41 < Laurenceb> still cant fix the dma tho
2012-04-13T19:12:45 < Laurenceb> yeah i know
2012-04-13T19:13:22 < Laurenceb> maybe if i reconfigure another channel on the same dma controller whilst a transfer is running it can fail?
2012-04-13T19:13:30 < Laurenceb> im not actually missing any data
2012-04-13T19:13:51 < Laurenceb> it just generates an extra half transfer completion
2012-04-13T19:14:31 < zyp> are you sure that it's a half-transfer interrupt you are getting?
2012-04-13T19:15:00 < zyp> I saw you had an if-else block in the ISR, are you sure the else only gets the right kind of interrupt?
2012-04-13T19:15:04 < Laurenceb> the stock fatfs dma code initialises and reinitialises a channel
2012-04-13T19:15:13 < Laurenceb> yeah
2012-04-13T19:15:22 < Laurenceb> well - i only enable two interrupts
2012-04-13T19:15:35 < zyp> I would probably do if-elseif even if I only had two enabled
2012-04-13T19:15:39 < zyp> to make it explicit
2012-04-13T19:15:57 < Laurenceb> 	DMA_ClearFlag(DMA1_FLAG_TC1|DMA1_FLAG_HT1);
2012-04-13T19:16:03 < Laurenceb> itd loop forever otherwise
2012-04-13T19:16:17 < Laurenceb> ok
2012-04-13T19:16:43 < Laurenceb> im tempted to rewrite the fatfs code so it sets up the dma then just triggers a new tranfer for each block
2012-04-13T19:16:57 < Laurenceb> rather than reinitialising
2012-04-13T19:17:55 < Laurenceb> maybe the dma controller sometimes gets confused if the timing is in a certain way
2012-04-13T19:18:24 < Laurenceb> its only about 1 in 10^6 transfers
2012-04-13T19:31:01 < Laurenceb> looks like the 	if(RCC->CSR&RCC_CSR_IWDGRSTF) i added at startup is killing the processor on jtag
2012-04-13T19:35:12 < Laurenceb> dont know why :P
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2012-04-13T21:38:29 < Laurenceb_> yo
2012-04-13T21:38:50 <+jpa-> yo yo Laurenceb_ wassup!
2012-04-13T21:39:00 < Laurenceb_> :P
2012-04-13T21:39:18 < Laurenceb_> trying to work out wtf is wrong with dma on my f1
2012-04-13T21:39:43 <+jpa-> you have your priorities wrong :)
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2012-04-13T21:41:11 < Laurenceb_> lol
2012-04-13T21:41:16 < Laurenceb_> maybe
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2012-04-13T21:50:50 < TitanMKD> hi
2012-04-13T21:52:21 < Laurenceb_> is it possible write access to dma control registers whilst a transaction is in progress might break something?
2012-04-13T21:54:18 <+jpa-> for the same channel, yes
2012-04-13T21:54:23 <+jpa-> for different channel, no
2012-04-13T21:57:32 < TitanMKD> Anyone know the DeBruijn Bit Position algorithm to count the consecutive zero bits on the left instead right ?
2012-04-13T21:58:02 < zyp> the what?
2012-04-13T21:58:02 <+jpa-> why not just use the builtin bit reversal & count leading zeros instructions?
2012-04-13T21:58:13 < Laurenceb_> heh
2012-04-13T21:58:34 < obnauticus> Does anyone here know what the part number is of the accelerometer on the f4 discovery board?
2012-04-13T21:58:44  * obnauticus can't get a picture of the QR code
2012-04-13T21:58:45 < obnauticus> lol
2012-04-13T21:58:46 <+jpa-> the datasheet does
2012-04-13T21:59:04 < obnauticus> Hmm, I couldn't find it
2012-04-13T21:59:06 < obnauticus> i'll look again
2012-04-13T21:59:08 < obnauticus> I was looking for a BOM
2012-04-13T21:59:25 <+jpa-> how detailed part number do you need?
2012-04-13T21:59:47 < Laurenceb_> hmm yeah the only global DMA register is IFCR
2012-04-13T21:59:58 < Laurenceb_> difficult to see how thatd break it
2012-04-13T22:00:06 < zyp> obnauticus, LIS302DL
2012-04-13T22:00:06 < obnauticus> it's an LIS302DL
2012-04-13T22:00:07 < obnauticus> nevermind
2012-04-13T22:00:09 < Laurenceb_> everything else is for once channel
2012-04-13T22:00:09 <+jpa-> if you clear the wrong interrupts :)
2012-04-13T22:00:28 < Laurenceb_> the periph lib header looks ok
2012-04-13T22:00:38 < TitanMKD> jpa- yes very good idea i need to check that instruction in ARM
2012-04-13T22:01:09 < TitanMKD> in fact i do not want to count how many 0 but i want to count how many consecutive 0 ;)
2012-04-13T22:02:07 < Laurenceb_> yeah countones is missing in thumb2 :(
2012-04-13T22:03:22 <+izua> huh
2012-04-13T22:03:25 <+izua> software usb
2012-04-13T22:03:39 <+izua> or other comms protocol that would  be easier implemented with a dedicated chip?
2012-04-13T22:03:51 < zyp> what?
2012-04-13T22:04:07 < obnauticus> Does anyone here have any sample code of MMC/SD working with ChibiOS/RT?
2012-04-13T22:06:48 <+jpa-> obnauticus: well it's not very clear because there is my other test stuff in between, but the mmc has been working  https://svn.kapsi.fi/jpa/paatti-chibios/main.c
2012-04-13T22:08:18 < TitanMKD> ok forgot clz is just perfect ;)
2012-04-13T22:08:24 < TitanMKD> ARM is just magic ;)
2012-04-13T22:10:28 < obnauticus> an jpa-, thanks.
2012-04-13T22:10:30 < Laurenceb_> obnauticus: i have uSD not working with plain c
2012-04-13T22:10:44 < obnauticus> Yeah, I'm having some issues trying to get MMC/SD working
2012-04-13T22:10:47 < obnauticus> ...by tonight. lo.
2012-04-13T22:10:48 < obnauticus> lol*
2012-04-13T22:11:02 < obnauticus> I just really need to log a few of the ADC inputs and the accelerometer..
2012-04-13T22:11:51 < Laurenceb_> i have issues with dma
2012-04-13T22:11:56 < obnauticus> same.
2012-04-13T22:12:04 < Laurenceb_> works with polled spi for me
2012-04-13T22:12:21 < obnauticus> I was trying to store the data in DMA and then pipe it to the card
2012-04-13T22:12:22 < obnauticus> didn't work.
2012-04-13T22:12:31 < obnauticus> So I'm trying to do that now
2012-04-13T22:12:39 < Laurenceb_> theres example code with fatfs
2012-04-13T22:12:40 < obnauticus> basically what jpa-'s code is
2012-04-13T22:12:47 < obnauticus> Where?
2012-04-13T22:12:53 < obnauticus> I'm using fatfs right now..
2012-04-13T22:12:56 < Laurenceb_> im using that but it breaks my other dma transactions
2012-04-13T22:13:05 <+jpa-> yeah fatfs has examples, but no need to use them with chibios
2012-04-13T22:13:12 <+jpa-> because chibios has all that code built-in
2012-04-13T22:13:17 < Laurenceb_> http://zrusavpt-eagle.googlecode.com/svn-history/r34/trunk/STM32/uart_vl_discovery/src/sd_spi_stm32.c
2012-04-13T22:13:43 < Laurenceb_> good luck getting it to work with ADC1 dma as well
2012-04-13T22:14:03 < obnauticus> yeah, this is going to be a bitch and a half
2012-04-13T22:14:20 < obnauticus> polled SPI is probably my best bet for now
2012-04-13T22:14:30 < obnauticus> I only need a few analog channels
2012-04-13T22:14:37 < obnauticus> either that or I can offload storage to my other board
2012-04-13T22:14:49 < Laurenceb_> im getting double interrupts on one in 10^6 dma transfers from adc1
2012-04-13T22:14:59 < Laurenceb_> been driving me mad for days
2012-04-13T22:15:09 < obnauticus> That's pretty odd.
2012-04-13T22:15:18 < Laurenceb_> i suspect a silicon bug
2012-04-13T22:15:30 < zyp> I suspect a race condition in your code
2012-04-13T22:15:37 < obnauticus> his code is racist?!
2012-04-13T22:16:04 < obnauticus> ...luckily what I'm doing only goes into a mission critical control application
2012-04-13T22:16:16 < obnauticus> in a student designed high-speed vehicle
2012-04-13T22:16:19 < Laurenceb_> so the code can be piss poor?
2012-04-13T22:16:21 < Laurenceb_> lol
2012-04-13T22:16:27 < obnauticus> Yes.
2012-04-13T22:16:27 < Laurenceb_> thatll be a yes
2012-04-13T22:16:28 < obnauticus> lol.
2012-04-13T22:16:36 < obnauticus> I'm the only electrical engineer on the team
2012-04-13T22:16:46 < Laurenceb_> uni projects are always fail
2012-04-13T22:16:49 < obnauticus> Well, there's this other super hot girl except she doesn't do anything but hedge for more funding.
2012-04-13T22:16:51 < Laurenceb_> this is a uni project too
2012-04-13T22:16:55 < obnauticus> Laurenceb_ have you haerd of Formula SAE?
2012-04-13T22:17:00 < obnauticus> our team is one of the best in the world
2012-04-13T22:17:04 < Laurenceb_>  other super hot girl
2012-04-13T22:17:06 < obnauticus> Not really fail
2012-04-13T22:17:11 < Laurenceb_> so you are a super hot girl too?
2012-04-13T22:17:15 < obnauticus> No.
2012-04-13T22:17:17 < obnauticus> She's the otheR EE
2012-04-13T22:17:22 < obnauticus> but she's not really good at EE
2012-04-13T22:17:23 < Laurenceb_> ah lol
2012-04-13T22:17:36 < obnauticus> pretty much just arm candy
2012-04-13T22:17:48 < Laurenceb_> http://imagemacros.files.wordpress.com/2009/11/rule_30_girls.jpg?w=720
2012-04-13T22:18:02 < obnauticus> she's not on the internet.
2012-04-13T22:18:04 < obnauticus> you are correct.
2012-04-13T22:18:07 < Laurenceb_> exactly
2012-04-13T22:18:11 < obnauticus> I am
2012-04-13T22:18:15 < obnauticus> The girl is a huge bitch, too.
2012-04-13T22:18:23 < obnauticus> But she can't be a bitch to me since she works under me.
2012-04-13T22:18:34 < Laurenceb_> too much info
2012-04-13T22:18:38 < obnauticus> lol
2012-04-13T22:18:40 < obnauticus> I don't really give a shit
2012-04-13T22:18:50 < Laurenceb_> what uni is this?
2012-04-13T22:18:52 < obnauticus> Purdue
2012-04-13T22:19:00 < Laurenceb_> ah cool
2012-04-13T22:19:14 < Laurenceb_> top place
2012-04-13T22:19:19 < obnauticus> I hate it here.
2012-04-13T22:19:23 < Laurenceb_> heh
2012-04-13T22:19:25 < obnauticus> I'm from the west coast.
2012-04-13T22:19:31 < obnauticus> Indiana is racist and conservative.
2012-04-13T22:19:37 < Laurenceb_> lol
2012-04-13T22:19:50 < obnauticus> Girls think they're hot shit since it's an engineering school.
2012-04-13T22:20:06 < obnauticus> a 7 has an inflated self-worth because there are none.
2012-04-13T22:20:49 < obnauticus> Luckily I don't take that kind-of shit; therefore, teh girls find it more attractive. So the bitchy girls will be confused why I think they're retarded, then they find out I'm actually just an asshole
2012-04-13T22:21:04 < obnauticus> It's a shitty place to be.
2012-04-13T22:21:59 < Laurenceb_> anyway, back on topic
2012-04-13T22:22:15 < obnauticus> yeah..
2012-04-13T22:22:52 < Laurenceb_> do you have any hardware?
2012-04-13T22:22:58 < obnauticus> Lots.
2012-04-13T22:23:31 < Laurenceb_> - stm32 hardware?
2012-04-13T22:23:36 < obnauticus> f4 discovery
2012-04-13T22:23:46 < obnauticus> I've been working with it for a couple of weeks now
2012-04-13T22:25:23 < Laurenceb_> ok
2012-04-13T22:26:10 < obnauticus> Still trying to get SDIO to work, though. It's too bad the other (fancy) board that I have doesn't have any ADC's...although it does have a parallel data bus. I could have used that with some an R2R ladder if school hadn't gotten in the way.
2012-04-13T22:27:45 < obnauticus> HMMMM
2012-04-13T22:28:56 < obnauticus> It's too bad this board doesn't have ethernet either :(
2012-04-13T22:32:16 < Laurenceb_> http://forum.sparkfun.com/viewtopic.php?f=11&t=29660
2012-04-13T22:32:17 < Laurenceb_> huh
2012-04-13T22:32:23 < Laurenceb_> surely thats wrong right?
2012-04-13T22:33:18 < obnauticus> no idea.
2012-04-13T22:33:34 < zyp> what's wrong?
2012-04-13T22:33:38 < Laurenceb_> #define IS_DMA_CONFIG_IT(IT) ((((IT) & 0xFFFFFFF1) == 0x00) && ((IT) != 0x00))
2012-04-13T22:33:46 < Laurenceb_> its an assert failure
2012-04-13T22:33:59 < Laurenceb_> using DMA1_IT_TC7
2012-04-13T22:34:00 < zyp> «Libs are really helpfull, but sometimes are really "harder" to debug»
2012-04-13T22:34:03 < Laurenceb_> lol
2012-04-13T22:34:32 < zyp> that's why I prefer to work directly with the registers and write my own code around them :p
2012-04-13T22:34:49 < obnauticus> Yeah, you can't really assume any of that shit works.
2012-04-13T22:35:04 < Laurenceb_> oh i misread
2012-04-13T22:35:13 < Laurenceb_> yeah he swapped it the other weay
2012-04-13T22:36:20 < obnauticus> jpa- you'
2012-04-13T22:36:26 < obnauticus> you're running a kalman filter on this thing?
2012-04-13T22:36:33 < Laurenceb_> i am
2012-04-13T22:36:36 < obnauticus> me gusta.
2012-04-13T22:40:36 < obnauticus> Ugh, this is a bitch and a half.
2012-04-13T22:42:05 < Laurenceb_> im going to cheat and use the data counter register
2012-04-13T22:42:24 < Laurenceb_> DMA_CNDTR
2012-04-13T22:43:05 <+jpa-> obnauticus: who isn't?
2012-04-13T22:43:11 < Laurenceb_> ill abandon the interrupt if it doesnt have a sane value
2012-04-13T22:44:03 < obnauticus> Laurenceb that's pretty southern.
2012-04-13T22:44:43 < Laurenceb_> its only a few lines of codse
2012-04-13T22:44:49 < zyp> «this shit doesn't work and I can't figure out why… better hack on a workaround»
2012-04-13T22:44:55 <+jpa-> Laurenceb_: so lowering the mmc dma priority didn't help?
2012-04-13T22:44:59 < Laurenceb_> no
2012-04-13T22:45:04 < Laurenceb_> identical issues
2012-04-13T22:45:11 <+jpa-> hm
2012-04-13T22:45:19 < obnauticus> It's impossible to code with frat bro's raging
2012-04-13T22:45:21 < obnauticus> around my house
2012-04-13T22:45:48  * Laurenceb_ read that as asshole
2012-04-13T22:46:10 < obnauticus> what
2012-04-13T22:46:38 < Laurenceb_> "fat bro's raping"
2012-04-13T22:46:47 < obnauticus> lolol
2012-04-13T22:47:23 <+Steffanx> me doesn't even know what "frat bro's raging" means :P
2012-04-13T22:47:44 < obnauticus> I dont think you want to.
2012-04-13T22:48:02 < obnauticus> I occasionally join them just to see what it's like to be bromantic.
2012-04-13T22:48:25 < obnauticus> something like 33% of our student population is in the greek system...making it the largest in the world.
2012-04-13T22:48:30 < obnauticus> Or something like that ridiculous.
2012-04-13T22:48:56 < obnauticus> And I live really close to campus, so there are always drunk randos running around...even in the middle of the week like on a wednesday morning.
2012-04-13T22:49:31 < Laurenceb_> we have them in the UK roo
2012-04-13T22:49:33 < Laurenceb_> *too
2012-04-13T22:49:54 < obnauticus> Well, the bros here are just like .. engineers.
2012-04-13T22:49:58 < Laurenceb_> three of them jumped in the river Thames a while back and had to be picked up by rescue helicopter
2012-04-13T22:49:59 < obnauticus> They're not actually even bros
2012-04-13T22:50:05 < obnauticus> Thats just hilarious
2012-04-13T22:50:23 < obnauticus> One frat on campus makes the pledges swim in the wabash river -- the third most polluted body of water in the USA.
2012-04-13T22:50:34 < obnauticus> s/the/their
2012-04-13T22:50:59 < obnauticus> Another makes their pledges do the elephant walk
2012-04-13T22:51:12 < obnauticus> It's pretty heterosexual.
2012-04-13T22:51:14 <+Steffanx> Weird americans
2012-04-13T22:51:50 < obnauticus> I have nothing against gay people, I have tons of gay friends; however, frat bro's are almost exclusively homophobic.
2012-04-13T22:51:58 < obnauticus> But in order to get in to a frat you have to almost be borderline gay
2012-04-13T22:52:00 < obnauticus> I don't get it.
2012-04-13T22:54:30 < zyp> I read a recent study that found that homophoby were related to being closet gay
2012-04-13T22:55:18 < obnauticus> zyp I'm taking a class that covers that topic, especially in the USA where there are many closed views against being homosexual...if you grow up in  such an envrionment and *are* homophobic
2012-04-13T22:55:18 <+Steffanx> bullshit study
2012-04-13T22:55:27 < obnauticus> errr I mean *are* homosexual
2012-04-13T22:55:42 < obnauticus> Then it can make you even more opposed to your own orientation
2012-04-13T22:55:47 < obnauticus> Not a bullshit study.
2012-04-13T22:55:56 < zyp> obnauticus, exactly
2012-04-13T22:56:04 < obnauticus> there've been many surveys conducted by the Kinsey institute which all conclude the same thing.
2012-04-13T22:56:06 <+Steffanx> I love blabla like that
2012-04-13T22:56:18 < Laurenceb_> heh
2012-04-13T22:56:34 < obnauticus> c.f., kinsey scale
2012-04-13T22:56:35 < zyp> you don't want to admit being gay, so you put up an image of hating gay people so others won't suspect you
2012-04-13T22:56:39 < Laurenceb_> most think tanks produce what they want to thunk
2012-04-13T22:56:49 < obnauticus> They're not think tanks... lol.
2012-04-13T22:57:01 < obnauticus> It's a representitive survey, except sex surveys are very hard to conduct (no pun intended)
2012-04-13T22:57:18 < obnauticus> mainly because nonresponse and measurement of human sexuality is probably one of the hardest and least ethical things you can currently do
2012-04-13T22:57:39 < Laurenceb_> its quite hard
2012-04-13T22:57:44 < obnauticus> I think the best overarching sex survey we have is the NHLS
2012-04-13T22:57:48 < Laurenceb_> unless they dont take the viagara
2012-04-13T22:57:51 < obnauticus> lol
2012-04-13T22:57:53 < obnauticus> or cialias
2012-04-13T22:57:59 < obnauticus> cialas
2012-04-13T22:58:06 < Laurenceb_> you know way too much about this
2012-04-13T22:58:14 < obnauticus> I'm taking a class on human sexuality as a gen ed
2012-04-13T22:58:17 < obnauticus> So I'd expect myself to
2012-04-13T22:58:31 < obnauticus> I pay 40 kilobucks per year to go to this school to get an overvalued degree
2012-04-13T22:58:37 < Laurenceb_> fail
2012-04-13T22:58:45 < Laurenceb_> thats silly money
2012-04-13T22:58:50 < obnauticus> Meh, I'm working at SpaceX
2012-04-13T22:58:53 <+Steffanx> How people in the US can even pay that?
2012-04-13T22:58:55 < obnauticus> and then Renault F1
2012-04-13T22:59:02 < Laurenceb_> i finished with UKP18K
2012-04-13T22:59:06 < Laurenceb_> after 4 years
2012-04-13T22:59:10 < obnauticus> Steffanx umm, many people actually. Look up the 90/10 rule and education inflation.
2012-04-13T22:59:13 < Laurenceb_> down to 4K debt now
2012-04-13T22:59:27 < obnauticus> the USA's educational loans system is about to fail, some speculate.
2012-04-13T22:59:47 < obnauticus> universities are forced to charge ridiculous amounts in order to increase their government funding, etc.
2012-04-13T23:00:13 < obnauticus> they look for people who can pay 10% of their fees while *in* college, and then collect interest on the other 90%
2012-04-13T23:00:23 < obnauticus> and if those loans are privatized then they get thrown into CDO's
2012-04-13T23:00:33 < obnauticus> much like the housing bubble of '08
2012-04-13T23:00:38 < zyp> norwegian student loan system is nice
2012-04-13T23:00:52 < obnauticus> With near the same leverage...1:10
2012-04-13T23:01:03  * obnauticus = econ double major lol
2012-04-13T23:01:09 < zyp> a student loan is pretty much the best loan one can get in norway
2012-04-13T23:01:13 -!- phantoxe [~destroy@a95-92-89-24.cpe.netcabo.pt] has joined ##stm32
2012-04-13T23:01:31 <+Steffanx> Here it's ok-ish :)
2012-04-13T23:01:37 < obnauticus> The USA is straight fucked up
2012-04-13T23:01:40 < obnauticus> as most people know
2012-04-13T23:01:41 <+Steffanx> It was great, but they changed the system
2012-04-13T23:01:56 < Laurenceb_> i thought you were an engineering student?
2012-04-13T23:01:59 < obnauticus> I am.
2012-04-13T23:02:06 < obnauticus> Electrical Engineering double major in Econ
2012-04-13T23:02:10 < Laurenceb_> oh
2012-04-13T23:02:13 < Laurenceb_> US is weird
2012-04-13T23:02:19 < Laurenceb_> its treated like school
2012-04-13T23:02:22 < obnauticus> Most peopleo nly pick one.
2012-04-13T23:02:26 < Laurenceb_> oh wait thats what you call uni
2012-04-13T23:02:38 < obnauticus> I will have two degrees by the time i graduate
2012-04-13T23:02:45 < obnauticus> B.S. Electrical Engineering and B.S. Economics
2012-04-13T23:02:52 < obnauticus> They're both bs.
2012-04-13T23:02:57 < zyp> both bullshit? :)
2012-04-13T23:02:58 <+izua> bs is now a title?
2012-04-13T23:02:59 <+Steffanx> bullshit? :P
2012-04-13T23:03:00 < obnauticus> yp.
2012-04-13T23:03:03 < obnauticus> yup*
2012-04-13T23:03:04 <+Steffanx> bsc. ..
2012-04-13T23:03:15 <+izua> Ph.Bs.
2012-04-13T23:03:17 < obnauticus> B.Sci, BSD
2012-04-13T23:03:19 < Laurenceb_> degree in bullshit
2012-04-13T23:03:33 < obnauticus> essentially.
2012-04-13T23:03:41 < obnauticus> Purdue Engineering degrees aren't entirely bullshit, though.
2012-04-13T23:03:50 < obnauticus> They're essentially you graduate and you're given an engineering management position for no reason.
2012-04-13T23:04:01 < zyp> reminds me that I still haven't gotten any papers of my degree from my uni
2012-04-13T23:04:21 <+Steffanx> lol?
2012-04-13T23:04:30 < obnauticus> You don't need those.
2012-04-13T23:04:31 < obnauticus> lolol
2012-04-13T23:04:34 < zyp> I also have a bs degree in EE, but they never sent me the papers for it, and I never cared enough to bother them about it :p
2012-04-13T23:04:36 < Laurenceb_> http://translate.google.com/translate?hl=en&sl=pl&u=http://www.elektroda.pl/rtvforum/topic2043113.html&ei=kYaIT76TD8bR0QWSvsTbCQ&sa=X&oi=translate&ct=result&resnum=1&ved=0CCoQ7gEwAA&prev=/search%3Fq%3Dstm32%2Bdma%2BDMA_IT_TC%26hl%3Den%26safe%3Doff%26client%3Dubuntu%26channel%3Dfs%26gl%3Duk%26prmd%3Dimvnsfd
2012-04-13T23:04:45 < Laurenceb_> "And even more, there is such, that she would like to know;], because it's reaching out his hand to the toilet ... "
2012-04-13T23:04:48 < Laurenceb_> wuuuutttt
2012-04-13T23:04:53 < obnauticus> EE here is straight stupid
2012-04-13T23:04:58 < Laurenceb_> same here
2012-04-13T23:04:59 < Tom_itx> zyp too late now. you gotta start all over
2012-04-13T23:05:00 < obnauticus> some of the senior projects I've seen are bat shit retarded.
2012-04-13T23:05:04 < obnauticus> "DMX Controller"
2012-04-13T23:05:08 < Laurenceb_> EE is a waste of time as a degreee
2012-04-13T23:05:10 < obnauticus> I remember 7th grade.
2012-04-13T23:05:15 < Laurenceb_> i did physics
2012-04-13T23:05:23 < obnauticus> It really is.
2012-04-13T23:05:24 <+izua> Laurenceb_: it's neat if you want to start a business in EE
2012-04-13T23:05:42 < obnauticus> I'm going to grad school for financial engineering
2012-04-13T23:05:43 <+izua> and certification requires you to have all sorts of certifications
2012-04-13T23:05:50 < obnauticus> EE + Econ = financial engineering.
2012-04-13T23:05:50 < zyp> I had already accepted a job offer at the time I graduated, so I didn't really need it :p
2012-04-13T23:06:00 <+izua> electronomy
2012-04-13T23:06:04 < obnauticus> n
2012-04-13T23:06:13 < obnauticus> Naw, more like algorithm development for use in high frequency trading.
2012-04-13T23:06:17 < obnauticus> which is spanish for being a jew
2012-04-13T23:06:38 < Laurenceb_> whats the point?
2012-04-13T23:06:39 <+izua> why do you need EE for that?
2012-04-13T23:06:45 < obnauticus> they're done on ASIC's and FPGA's
2012-04-13T23:06:45 <+izua> wouldn't CS or something related to programming do?
2012-04-13T23:06:53 <+izua> ah
2012-04-13T23:06:54 < obnauticus> in a matter of microseconds
2012-04-13T23:06:56 < Laurenceb_> high frequency trading is a waste of time and recources
2012-04-13T23:06:57 <+izua> i have no idea how that works
2012-04-13T23:07:05 <+izua> it's a net-zero game
2012-04-13T23:07:05 < obnauticus> Laurenceb_ Exactly, but it works.
2012-04-13T23:07:06 < Laurenceb_> *resources
2012-04-13T23:07:09 < zyp> and I don't see myself switching jobs anytime soon either, so I don't know if I'll ever need the papers :p
2012-04-13T23:07:13 < obnauticus> izua zero-sum*
2012-04-13T23:07:16 <+izua> i can't really see the social use to that
2012-04-13T23:07:18 < obnauticus> net zero is a company.
2012-04-13T23:07:18 <+izua> uh
2012-04-13T23:07:21 <+izua> er, yeah
2012-04-13T23:07:23 < obnauticus> lol
2012-04-13T23:07:30 <+izua> well, it nets to 0
2012-04-13T23:07:34 < obnauticus> HFT is hilarious
2012-04-13T23:07:38 < obnauticus> it is high tech arbitrage
2012-04-13T23:07:46 < Laurenceb_> anyways
2012-04-13T23:07:47 < obnauticus> they exploit exchange latencies to predict market values before anyone else knows.
2012-04-13T23:07:59 < obnauticus> and they move volume based upon that data
2012-04-13T23:08:00 < Laurenceb_> can anyone suggest why my dma repeates?
2012-04-13T23:08:04 <+izua> yeah
2012-04-13T23:08:10 <+Steffanx> one of the reason we now have this financial problems obnauticus ?
2012-04-13T23:08:13 < zyp> Laurenceb_, your code is bad.
2012-04-13T23:08:15 <+izua> it extracts value out of something without inherent value :P
2012-04-13T23:08:18 < obnauticus> Steffanx not really, those are CDO's
2012-04-13T23:08:22 <+izua> ie, on someone's else back
2012-04-13T23:08:31 < obnauticus> HFT is the least of anyone's problems at this point.
2012-04-13T23:08:32 <+Steffanx> it's part of the problem imho
2012-04-13T23:08:33 < Laurenceb_> zyp: i cant find anything wrong
2012-04-13T23:08:37 < obnauticus> Steffanx not really.
2012-04-13T23:08:38 <+Steffanx> moar moar moar moar money
2012-04-13T23:08:41 < zyp> Laurenceb_, have you tried making a reduced test case?
2012-04-13T23:08:41 <+izua> Laurenceb_: bofh-excuse-of-the-day loading
2012-04-13T23:08:41 < obnauticus> It jews peoplpe, yes.
2012-04-13T23:08:47 < Laurenceb_> fatfs dma spi code looks ok
2012-04-13T23:08:48 < obnauticus> but there are far more problems than HFT in the american stock exchange(s)
2012-04-13T23:08:55 < Laurenceb_> zyp: yes
2012-04-13T23:08:56 < obnauticus> CDO's CDS's
2012-04-13T23:09:01 < obnauticus> mainly those
2012-04-13T23:09:02 < Laurenceb_> i removed the other interrupts
2012-04-13T23:09:05 < obnauticus> derivatives
2012-04-13T23:09:11 <+izua> try moving a lot of data around on two interrupts
2012-04-13T23:09:17 < Laurenceb_> zyp: it fails when the spi dma is running at the same time as adc1
2012-04-13T23:09:28 <+izua> s/interrupts/DMA
2012-04-13T23:09:33 < Laurenceb_> the dma for spi is polled
2012-04-13T23:09:36 <+izua> you're still using all the DMAs, or you cut those too?
2012-04-13T23:09:46 < zyp> Laurenceb_, what setup would I need to reproduce your problem?
2012-04-13T23:09:49 < Laurenceb_> im only using one/two
2012-04-13T23:09:50 <+izua> ^
2012-04-13T23:10:07 < Laurenceb_> zyp: try grabbing the fatfs spi-dma code
2012-04-13T23:10:23 < Laurenceb_> then get ADC1 to do double buffered circular dma
2012-04-13T23:10:38 < obnauticus> Laurenceb does the fatfs spi dma code work by default on the f4 discovery board?
2012-04-13T23:10:38 < Laurenceb_> dont bother with the fatfs or a card
2012-04-13T23:10:40 < obnauticus> or do i have rto change some shit
2012-04-13T23:10:46 < Laurenceb_> youll have to change it
2012-04-13T23:10:49 < Laurenceb_> thats for F1
2012-04-13T23:10:50 < obnauticus> I really just need to log some values
2012-04-13T23:10:53 < obnauticus> but I don't know how to do that
2012-04-13T23:11:05 < obnauticus> I need to sample the ADC's in parallel and store their values on an SD card
2012-04-13T23:11:11 < obnauticus> But I'm new to ARM
2012-04-13T23:11:14 < obnauticus> so I'm straight up confused
2012-04-13T23:11:18 < Laurenceb_> zyp: so grab the write sector stuff and have it write 512 zeros or whatever in a loop
2012-04-13T23:11:29 < zyp> unfortunately I don't have any SD card setups
2012-04-13T23:11:37 < Laurenceb_> you dont need any card
2012-04-13T23:11:41 < Laurenceb_> just an F1
2012-04-13T23:11:47 < obnauticus> ?
2012-04-13T23:11:51 < Laurenceb_> just grab the write sector routine
2012-04-13T23:12:02 < zyp> where would it be written to then?
2012-04-13T23:12:04 < Laurenceb_> run it at the same time as the ADC1 DMA is running
2012-04-13T23:12:08 < Laurenceb_> the pins
2012-04-13T23:12:17 < obnauticus> Laurenceb_ is this to me?
2012-04-13T23:12:24 < Laurenceb_> no
2012-04-13T23:12:28 < zyp> me I guess
2012-04-13T23:12:29 < Laurenceb_> ill come to you, hang on
2012-04-13T23:12:33 < obnauticus> me gusta.
2012-04-13T23:12:40 <+izua> have you tried this on raw card access?
2012-04-13T23:12:58 <+izua> check where a known file starts, and start writing samples from that sector
2012-04-13T23:13:24 < Laurenceb_> zyp: https://github.com/Laurenceb/STM32-Logger/blob/master/Util/fat_fs/src/sd_spi_stm32.c#L408
2012-04-13T23:13:50 < Laurenceb_> obnauticus: unfortunately, F4 is pretty different as far as peripherals go
2012-04-13T23:14:01 < obnauticus> ugh
2012-04-13T23:14:05 < Laurenceb_> AIUI noone has written a fatfs interface for it
2012-04-13T23:14:08 < zyp> depends on which peripheral
2012-04-13T23:14:21 < obnauticus> Well...I can probably just do a serial stream...
2012-04-13T23:14:27 < obnauticus> lemme see what my other board has to offer
2012-04-13T23:14:48 < Laurenceb_> zyp: actually a simple test program would be doing spi dma writes almost all the time
2012-04-13T23:14:58 < Laurenceb_> so should see the error much more regularly
2012-04-13T23:15:19 < Laurenceb_> once every few seconds
2012-04-13T23:15:21 < zyp> according to migration guide, SPI is pretty much identical on F1 and F4
2012-04-13T23:15:42 < Laurenceb_> dma isnt
2012-04-13T23:15:59 < zyp> no, it isn't
2012-04-13T23:16:53 < obnauticus> The other option i have is to use a 32-bit data bus
2012-04-13T23:17:01 < obnauticus> and pipe that out to my other board to use its network interface
2012-04-13T23:17:05 < obnauticus> to crap shit out over the network
2012-04-13T23:17:18 < obnauticus> It's already sampling some stuff at the moment
2012-04-13T23:17:19 -!- jon1012 [~jon@foresight/developer/jon1012] has joined ##stm32
2012-04-13T23:17:34 < Laurenceb_> network... on a car?!
2012-04-13T23:17:38 < obnauticus> Yes.
2012-04-13T23:17:50 < jon1012> stm32f4 at 168 mhz on a toner transfer etched board working ! :D
2012-04-13T23:17:51 < obnauticus> It uses a redline an-80i and an antenna tracking system I made
2012-04-13T23:18:09 < Laurenceb_> jon1012: nice
2012-04-13T23:18:22 < Laurenceb_> photos pls
2012-04-13T23:18:40 < obnauticus> Laurenceb_ what's your suggestion? I'd like to have an SD card storing this stuff
2012-04-13T23:18:49 < obnauticus> Just take values directly from the ADC's
2012-04-13T23:18:52 < Laurenceb_> so use fatfs with SDIO
2012-04-13T23:18:53 < obnauticus> and then write them to an SD card
2012-04-13T23:18:58 < Laurenceb_> SDIO is faster
2012-04-13T23:19:05 < obnauticus> Is there any good documentation on it?
2012-04-13T23:19:13 < obnauticus> or am I just going to have to do this live
2012-04-13T23:19:14 < Laurenceb_> the reference manual
2012-04-13T23:19:17 < Laurenceb_> also app notes
2012-04-13T23:19:19 < obnauticus> for chibios?
2012-04-13T23:19:27 < Laurenceb_> oh... dont know sorry
2012-04-13T23:19:43 < obnauticus> Laurenceb_ oh you're talking about ST's stuff
2012-04-13T23:20:01 <+Steffanx> lol
2012-04-13T23:20:01 < obnauticus> I couldn't find anything on SDIO from ST, do you have the references
2012-04-13T23:20:17 <+Steffanx> the reference manual :P
2012-04-13T23:20:19 < Laurenceb_> lol
2012-04-13T23:20:20 < obnauticus> lol
2012-04-13T23:20:24 < Laurenceb_> learn2read
2012-04-13T23:20:28 < obnauticus> fffff
2012-04-13T23:21:02 < jon1012> Laurenceb_: I'm uploading it :)
2012-04-13T23:21:12  * obnauticus skips class for a different class. That's some engineering shit.
2012-04-13T23:21:33 < obnauticus> Or I could just bring my laptop
2012-04-13T23:21:34 < obnauticus> I like that idea.
2012-04-13T23:22:59 < jon1012> http://bit.ly/Ivs86Y => picture of my stm32f4 board
2012-04-13T23:23:25 < karlp> what mill is that from?
2012-04-13T23:23:38 <+Steffanx> nuce jon1012
2012-04-13T23:23:45 < karlp> nice to be able to do 0.5mm pitch traces :)
2012-04-13T23:23:48 <+Steffanx> i
2012-04-13T23:24:13 < Laurenceb_> ok.. if i assume something in the fatfs dma spi code causes the screwup.. how can i debug it?
2012-04-13T23:24:28 < Laurenceb_> i can break inside the ADC1 dma TC isr
2012-04-13T23:24:40 < Laurenceb_> then id need to examine the stack, how would i do that?
2012-04-13T23:25:46 < Laurenceb_> oh wait
2012-04-13T23:25:48 < jon1012> just two sides... not 5 or 6... so ARM at high frequencies is achievable at home on diy pcbs :)
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2012-04-13T23:25:53 < Laurenceb_> if i break at the end of the isr
2012-04-13T23:25:58 < Laurenceb_> then single step, simple
2012-04-13T23:26:41 < karlp> is that etched, not milled?
2012-04-13T23:26:53 < zyp> jon1012, of course it is, the frequency is only internal to the chip itself anyway
2012-04-13T23:27:19 < jon1012> zyp: well yeah, but there is a crystal outside too
2012-04-13T23:27:30 < jon1012> zyp: on the other side of the pcb
2012-04-13T23:27:35 < zyp> but it's only 8 MHz or so ;)
2012-04-13T23:27:36 < jon1012> zyp: 8mhz
2012-04-13T23:27:40 < jon1012> yeah
2012-04-13T23:28:15 < jon1012> but for the output ports, I bitbang stuff at 50 mhz (with 100 mhz gpio)
2012-04-13T23:28:18 < Laurenceb_> is systick halted in debug halt?
2012-04-13T23:28:27 < zyp> yes
2012-04-13T23:28:30 < Laurenceb_> cool
2012-04-13T23:28:41 < zyp> or maybe that's optional
2012-04-13T23:28:56 < Laurenceb_> ill find out
2012-04-13T23:28:58 < zyp> some peripherals can be halted too
2012-04-13T23:29:01 < Laurenceb_> will try this tomorrow
2012-04-13T23:33:55 < Laurenceb_> if its not a consistent bit of fatfs code causing the issue then its hack time :D
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2012-04-13T23:44:28 < obnauticus> and I am back
2012-04-13T23:44:29 < obnauticus> but in class :\
2012-04-13T23:48:01 <+Steffanx> You're fast
2012-04-13T23:49:55 -!- vpopov [~happylife@dyn-88-218.fttbee.kis.ru] has joined ##stm32
2012-04-13T23:55:19 < Laurenceb_> DO SOME WORK
2012-04-13T23:58:50 < Laurenceb_> i bet you use a mac
2012-04-13T23:59:29 <+Steffanx> WHO ARE YOU TAKLING TO?
--- Day changed Sat Apr 14 2012
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2012-04-14T00:02:35 < Laurenceb_> obnoxious
2012-04-14T00:03:12 <+Steffanx> He uses mIRC, so that has to be windows
2012-04-14T00:03:46 < zyp> pfft, I bet I could run mIRC on os x without any problems
2012-04-14T00:04:03 < zyp> but I can't be assed to actually do it to prove my point :p
2012-04-14T00:04:12 <+Steffanx> wine?
2012-04-14T00:04:26 < zyp> that's what I were thinking of, yes
2012-04-14T00:04:33 <+Steffanx> hmpf
2012-04-14T00:05:05 < zyp> pretty much everything I try nowadays runs fine under wine
2012-04-14T00:05:27 <+Steffanx> Then you don't try the things i try
2012-04-14T00:05:36 < zyp> I don't know what you try
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2012-04-14T00:18:50 < Laurenceb_> i think hes talking about drugs
2012-04-14T00:20:35 < Laurenceb_> http://www.bbc.co.uk/news/uk-england-hampshire-17702463
2012-04-14T00:20:50 < Laurenceb_> "intolerance of other children "  pmsl
2012-04-14T00:34:26 -!- os-app92 [~ftw@168.170.195.77.rev.sfr.net] has joined ##stm32
2012-04-14T00:37:14 <+Steffanx> No i didn't talk about drugs
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2012-04-14T00:42:35 < obnauticus> Laurenceb_ im not a mac user, and i usually use slackware or fedora
2012-04-14T00:42:36 < obnauticus> lol
2012-04-14T00:45:00 < Laurenceb_> i use ubuntu
2012-04-14T00:45:06 < obnauticus> facepalm
2012-04-14T00:45:08 < Laurenceb_> i think that means im supposed to hate you
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2012-04-14T00:45:17 < Laurenceb_> ill ask #ubuntu for trolling advice
2012-04-14T00:46:02  * obnauticus does not participate in distro debates unless they're with RMS, in which case they're entertaining because you can always end them in `well, at least I shower more than once a week`
2012-04-14T00:51:54 < Laurenceb_> he came to our uni but i missed it :(
2012-04-14T00:52:05 < obnauticus> he came here a couple weeks ago
2012-04-14T00:52:14 < Laurenceb_> my friend got chucked out and banned from the compsci society for turning up drunk
2012-04-14T00:52:23 < obnauticus> I didn't go because his seminars are about as entertaining as an STD
2012-04-14T00:52:26 < Laurenceb_> they thought he was going to troll
2012-04-14T00:52:29 < obnauticus> Lol, I machine parts while drunk as fuck.
2012-04-14T00:52:34 < obnauticus> and dont get kicked out
2012-04-14T00:52:43 < obnauticus> which is actually dangerous
2012-04-14T00:53:02 < obnauticus> A. they're going on a car that goes >150mph; B. I'm working with machinery
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2012-04-14T06:51:17 < dongs> dongs
2012-04-14T06:54:32 < ureif> dongs
2012-04-14T06:55:30 < dongs> yes
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2012-04-14T12:05:22 < Laurenceb_> hi
2012-04-14T12:06:10 < Laurenceb_> i thought of an explanation for my dma behaviour, is the half transfer interrupt fired after transfer complete as well as half way through the transfer?
2012-04-14T12:07:50 <+jpa-> no
2012-04-14T12:08:40 < Laurenceb_> hmm
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2012-04-14T12:08:54 < Laurenceb_> the weird thing is i get a half transfer repeate twice
2012-04-14T12:09:11 < Laurenceb_> that requires the extra interrupt to be precisely timed
2012-04-14T12:09:19 < Laurenceb_> at the end of the trasnfer
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2012-04-14T12:21:49 < dongs> Laurenceb: sup blogger
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2012-04-14T13:38:24 < Laurenceb> yo dongs
2012-04-14T13:38:30 < Laurenceb> dma failing
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2012-04-14T13:49:58 <+Steffanx> I'm going to start a blog about your experience with the stm32's Laurenceb :P
2012-04-14T13:50:19 <+izua> heh
2012-04-14T13:50:31 <+izua> that's like advertising for a competing 32 bit mcu :P
2012-04-14T13:50:44 <+izua> did he figure out what was wrong?
2012-04-14T13:50:54 <+Steffanx> 0
2012-04-14T13:51:00 <+Steffanx> Not yet i guess
2012-04-14T13:56:40 < dongs> lol, blogs
2012-04-14T13:56:49 < dongs> im failing on vacation having to start working ona new workproj
2012-04-14T13:56:51 < dongs> though at least its fun
2012-04-14T13:58:48 < Laurenceb> dongs: i was reading that tom66 guys posts on rcg
2012-04-14T13:59:08 < Laurenceb> i was thinking could you do s-video using DAC+2*PWM?
2012-04-14T13:59:21 < Laurenceb> for the color
2012-04-14T13:59:50 < dongs> uh
2012-04-14T13:59:54 < dongs> yeah probably but color is hard
2012-04-14T13:59:55 < zyp> do you even need color?
2012-04-14T14:00:01 < dongs> fuck color though
2012-04-14T14:00:02 < karlp> YES
2012-04-14T14:00:05 < Laurenceb> itd be cool to have :P
2012-04-14T14:00:05 < karlp> it's 2012
2012-04-14T14:00:08 < Laurenceb> lol
2012-04-14T14:00:16 < dongs> i'd rather jsut encode osd in metadata and tarnasmit that over audio/wahtever subchannel w/fec
2012-04-14T14:00:25 < Laurenceb> if you used normal mode and center aligned pwm maybe?
2012-04-14T14:00:25 < dongs> and render it on the ground clearly
2012-04-14T14:00:28 < zyp> karlp, even in 2012 books are normally printed in monochrome
2012-04-14T14:00:30 < Laurenceb> for the I and Q phases
2012-04-14T14:00:42 < Laurenceb> dongs: yeah, way more sane
2012-04-14T14:01:01 < karlp> zyp, books normally have a fixed white background colour
2012-04-14T14:01:01 < zyp> dongs, that's what I've been thinking myself
2012-04-14T14:01:08 < karlp> an OSD most certainly does not.
2012-04-14T14:01:13 < Laurenceb> whats the color carrier frequency on s-video?
2012-04-14T14:01:26 < Laurenceb> or pal/whatever
2012-04-14T14:01:34 < dongs> dont even bother dude
2012-04-14T14:01:38 < Laurenceb> lol
2012-04-14T14:02:04 < karlp> I'm with dongs though, do the osd ont he ground, not in the air
2012-04-14T14:02:25 < Laurenceb> 4.43361875mhz i see
2012-04-14T14:02:44 <+izua> you could of course use a yuv or scart output
2012-04-14T14:02:45 < dongs> sounds like a number pulled out of someone's ass
2012-04-14T14:02:55 < Laurenceb> 72/16.24
2012-04-14T14:02:56 <+izua> which doesn't suffer from those wonderful intermodulation artifcats
2012-04-14T14:02:57 < Laurenceb> annoying
2012-04-14T14:03:12 <+izua> and where you can control the amount of color in each channel directly
2012-04-14T14:03:37 < Laurenceb> yeah pwm for the chroma would be hard
2012-04-14T14:03:37 < dongs> Laurenceb: i think sambas is trolling the pll for his osd
2012-04-14T14:03:46 < Laurenceb> huh
2012-04-14T14:03:48 < Laurenceb> oh
2012-04-14T14:03:53 < dongs> overclocking/or something
2012-04-14T14:03:57 < dongs> to get proper pixel clock
2012-04-14T14:03:59 < Laurenceb> run processor at weird frequency
2012-04-14T14:04:01 < Laurenceb> of course
2012-04-14T14:04:07 < dongs> yes
2012-04-14T14:04:08 <+izua> multiple of pal freq:P
2012-04-14T14:04:14 < Laurenceb> thatd work
2012-04-14T14:04:33 <+izua> thrashbarg had some amazing things done in analog video
2012-04-14T14:04:37 < Laurenceb> 70.938MHz would work
2012-04-14T14:04:49 < Laurenceb> then you have 3 bits of chroma
2012-04-14T14:04:59 <+izua> hey
2012-04-14T14:05:07 <+izua> that's better than terminals at least
2012-04-14T14:05:36 < Laurenceb> - for U and V
2012-04-14T14:05:45 < Laurenceb> so 6bits of chroma in total
2012-04-14T14:06:14 <+izua> so the main DAC will drive the luma channel, and two pwms for the chroma ones?
2012-04-14T14:06:20 < Laurenceb> yes
2012-04-14T14:06:28 < Laurenceb> two pwm off a single timer
2012-04-14T14:06:29 <+izua> i wonder if it's possible to generate everything from a single, high-speed dac
2012-04-14T14:06:42 < Laurenceb> maybe
2012-04-14T14:06:57 < Laurenceb> ideally youd have a framebuffer in ram
2012-04-14T14:07:01 < Laurenceb> and dma everything
2012-04-14T14:07:12 < Laurenceb> thats probably be easier to do without a DAC
2012-04-14T14:07:12 <+Steffanx> get some sdra, :)
2012-04-14T14:07:14 <+Steffanx> m
2012-04-14T14:07:17 <+Steffanx> *sram
2012-04-14T14:07:41 < Laurenceb> with a DAC you have to have the chroma modulated in the ram data
2012-04-14T14:07:51 < Laurenceb> with pwm you just set the duty cycle
2012-04-14T14:08:07 < dongs> i heard fsmc is slow on stm32
2012-04-14T14:08:15 < Laurenceb> yes
2012-04-14T14:08:23 < Laurenceb> people have used it for uslinux
2012-04-14T14:08:27 < Laurenceb> *uclinux
2012-04-14T14:08:31 < dongs> gay
2012-04-14T14:08:32 <+izua> but you'd need external hardware
2012-04-14T14:08:33 < Laurenceb> but it was slow
2012-04-14T14:08:39 <+Steffanx> how slow?
2012-04-14T14:08:43 <+izua> well.. even if it's just a bunch of resistors
2012-04-14T14:08:48 < Laurenceb> dunno - read st forumz
2012-04-14T14:08:55 < dongs> write-only memory
2012-04-14T14:09:14 <+Steffanx> Laurenceb i don't visit the st forumzz
2012-04-14T14:09:18 <+Steffanx> It's unreadable
2012-04-14T14:09:25 < Laurenceb> lol
2012-04-14T14:09:25 < dongs> ya st forums are fucking nasty
2012-04-14T14:09:25 <+Steffanx> and the search engine is even more shit
2012-04-14T14:09:35 < dongs> just like their whole new website
2012-04-14T14:09:38 <+Steffanx> *bigger
2012-04-14T14:09:41 < dongs> whoever came up with that trash needs to be shot
2012-04-14T14:09:45 < Laurenceb> heh
2012-04-14T14:09:59 < zyp> I wonder who do webshit for ST
2012-04-14T14:10:08 < dongs> you should find htem and kill them
2012-04-14T14:10:13 < zyp> internal sites are equally horrible
2012-04-14T14:12:06 < zyp> I log hours at work on one of those
2012-04-14T14:14:06 < Laurenceb> hours of irc
2012-04-14T14:14:12 <+Steffanx> :)
2012-04-14T14:14:16 < zyp> thankfully it's pretty much the only ST site I have to use, the other internal sites that are Ericsson or ST-E stuff are generally way better
2012-04-14T14:16:54 < Laurenceb> ok wut
2012-04-14T14:16:58 < Laurenceb> i set 	DBGMCU_Config(DBGMCU_IWDG_STOP, ENABLE);
2012-04-14T14:17:07 < Laurenceb> and it seems to work within gdb
2012-04-14T14:17:24 < Laurenceb> but when i first connect using texane i get a watchdog reset
2012-04-14T14:17:33 < Laurenceb> if i halt in gdb, no issues
2012-04-14T14:19:29 <+Steffanx> Feature from the texane tool?
2012-04-14T14:20:10 < dongs> > gdb
2012-04-14T14:20:12 < dongs> > texane
2012-04-14T14:20:15 < dongs> found your problems
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2012-04-14T14:20:43 <+Steffanx> dongs is more into .. LEDs?
2012-04-14T14:20:51 < Laurenceb> Steffanx: maybe
2012-04-14T14:20:53 < dongs> im into using propertools
2012-04-14T14:20:57 < Laurenceb> lol countertrolled
2012-04-14T14:20:57 <+Steffanx> like ..
2012-04-14T14:21:02 <+Steffanx> windows?
2012-04-14T14:21:10 < Laurenceb> as i was saying
2012-04-14T14:21:20 < dongs> windows, and proper debuggers, like jlink/ulink and proper tools
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2012-04-14T14:21:42 < zyp> dongs, did you figure out the bricked jlink shit?
2012-04-14T14:21:57 < dongs> no, haveent had time. plus im on vacation now :)
2012-04-14T14:22:05 < Laurenceb> where?
2012-04-14T14:22:17 < dongs> nome, alaska
2012-04-14T14:22:18 < Laurenceb> trollcave?
2012-04-14T14:22:22 < dongs> close.
2012-04-14T14:22:39 < Laurenceb> isnt it cold at this time of year?
2012-04-14T14:23:06 < zyp> isn't alaska supposed to be cold at any time of the year?
2012-04-14T14:25:00 < karlp> god no
2012-04-14T14:25:05 < Laurenceb> aha i seem to have got dma working
2012-04-14T14:25:06 < karlp> central alaska in summer is +40C
2012-04-14T14:25:13 < Laurenceb> crazy
2012-04-14T14:25:21 < karlp> it's called "continental"
2012-04-14T14:25:34 < karlp> it's like central canada, and parts of europe, snow all winter, heat all summer
2012-04-14T14:25:35 < Laurenceb> 	DMA_ClearITPendingBit(DMA1_IT_GL1);
2012-04-14T14:25:51 < Laurenceb> rather than 	DMA_ClearFlag(DMA1_FLAG_TC1|DMA1_FLAG_HT1);
2012-04-14T14:25:56 < karlp> Laurenceb: didn't we suggest at the beginning that you weren't clearing a dma interrupt bit properly?
2012-04-14T14:26:03 < Laurenceb> lol maybe
2012-04-14T14:26:12 < Laurenceb> clearflag works, but its slower
2012-04-14T14:26:24 < karlp> emphasis on WORKS
2012-04-14T14:26:36 < Laurenceb> and it seems if the dma is busy with another transaction seems its too slow
2012-04-14T14:27:50 <+Steffanx> isn't that how it's supposed to be?
2012-04-14T14:29:06 < Laurenceb> maybe
2012-04-14T14:29:14 < Laurenceb> i was reading example code on forums
2012-04-14T14:29:23 < Laurenceb> probably wrong
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2012-04-14T14:31:11 < Laurenceb> now i can get back to fighting the noise :/
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2012-04-14T16:32:07 <+Steffanx> Yeah sure dongs
2012-04-14T16:32:14 <+Steffanx> Im SURE you made this video http://www.youtube.com/watch?v=ETYnmFr5o_s&feature=player_embedded
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2012-04-14T21:12:12 <+Steffanx> Hmmpf, why not everything is in one document?
2012-04-14T21:12:23 <+Steffanx> Address/registers of the nvic for example
2012-04-14T21:13:54 < Thorn> stellaris does it like that more or less
2012-04-14T21:14:31 < Thorn> still, nvic is supplied by arm as part of the core
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--- Day changed Sun Apr 15 2012
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2012-04-15T02:05:16 < Laurenceb_> hi
2012-04-15T02:06:43 < zyp> shouldn't you be in bed by now? :p
2012-04-15T02:07:01 < Laurenceb_> lol
2012-04-15T02:07:24 < Laurenceb_> my wifi is breaking
2012-04-15T02:07:35 < Laurenceb_> i cant watch my porn :(
2012-04-15T02:07:36 < zyp> that's what's keeping you awake? :p
2012-04-15T02:07:46 < Laurenceb_> yes
2012-04-15T02:07:55 < Laurenceb_> keeps disconnecting
2012-04-15T02:08:16 < Laurenceb_> then i have to press "wireless association" on the router to reconnect
2012-04-15T02:11:48 < Laurenceb_> its a free one that can have remote firmware updates
2012-04-15T02:11:54 <+Steffanx> Waow
2012-04-15T02:11:55 < Laurenceb_> i think theyve screwed it
2012-04-15T02:12:16 < Laurenceb_> going to get myself something decent off ebay
2012-04-15T02:13:00 < Laurenceb_> looks like theyve made it require wireless association have to be pressed at each connection attempt
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2012-04-15T02:13:05 < zyp> I bought some business oriented shit with poe and stuck it onto my ceiling
2012-04-15T02:13:08 < zyp> stable as fuck
2012-04-15T02:13:20 < Laurenceb_> if i try to connect without pressing it it goes dead
2012-04-15T02:13:37 < Laurenceb_> like it blocks the mac address or something
2012-04-15T02:13:38 < zyp> because I can't stand dumbed down interfaces that don't work
2012-04-15T02:13:45 < Laurenceb_> i have to power cycle the router
2012-04-15T02:14:11 < Laurenceb_> maybe they got worried about people brute forcing the encryption or something?
2012-04-15T02:14:27 < zyp> sounds silly
2012-04-15T02:14:45 < zyp> I have no idea how that association shit works
2012-04-15T02:15:18 < Laurenceb_> maybe i could solder a relay on
2012-04-15T02:15:35 <+Steffanx> That thing is your modem too zyp ?
2012-04-15T02:15:36 < Laurenceb_> and use some sort of wireless door opener or something
2012-04-15T02:15:43 < zyp> waste of time, throw it away and get something decent instead
2012-04-15T02:15:54 <+Steffanx> The modem part is the part that fails here most of the time
2012-04-15T02:15:54 < zyp> Steffanx, no, access point only
2012-04-15T02:16:42 < zyp> my modem is a box that does nothing more than just being a cable modem
2012-04-15T02:18:11 < zyp> I hate boxes trying to do everything, because they usually fail to do everything properly
2012-04-15T02:18:16 < Laurenceb_> the other odd thing is it tend to disconnect if i transfer a lot of data
2012-04-15T02:18:40 < zyp> so I prefer shit that does one thing properly and leaves the rest up to other things
2012-04-15T02:18:58 < Laurenceb_> i rang up BT (isp) and they say they only support windows with remote desktop
2012-04-15T02:19:03 < Laurenceb_> like wtf
2012-04-15T02:19:23 < zyp> wlan disconnect or the external line?
2012-04-15T02:19:41 < zyp> what's «a lot of data»?
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2012-04-15T02:26:03 <+Steffanx> He can't tell you zyp :P
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2012-04-15T02:28:57 < Laurenceb_> this is pissing me off
2012-04-15T02:30:16 < Laurenceb_> im guessing they only tested it with windows xp or something
2012-04-15T02:30:19 < zyp> time to get out the cable instead
2012-04-15T02:30:30 < Laurenceb_> and put together some crazy hackup
2012-04-15T02:30:47 < Laurenceb_> yeah i have a load of cat5 somewhere
2012-04-15T02:32:16 <+Steffanx> You need cat6
2012-04-15T02:35:20 < zyp> just take a normal cat5 and run it a few times around your cat to add another
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2012-04-15T02:43:00 <+Steffanx> He didn't even read that :)
2012-04-15T03:00:00 < zyp> well, can't say he missed anything important
2012-04-15T03:06:07 <+Steffanx> Lucky him
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2012-04-15T12:38:54 < dongs> < Laurenceb_> i rang up BT (isp) and they say they only support windows with remote desktop
2012-04-15T12:39:03 < dongs> why would they support over 9000 shitty lunix distros
2012-04-15T12:39:05 < dongs> that are all broken
2012-04-15T12:39:19 < dongs> this sounds like a sane business decision
2012-04-15T12:39:36 < dongs> infact if I worked for an ISP and a customer told me he ran lunix I'd probably just delete his account
2012-04-15T12:39:47 < dongs> because all lunix users are either hackers or abusers of service
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2012-04-15T17:34:53 < formica> Can someone suggest me a dfu bootloader for stm32?
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2012-04-15T23:07:09 < Laurenceb_> anyone done a noise analysis for the stm32 ADC?
2012-04-15T23:07:20 < Laurenceb_> noise vrs sample time and adc clk
2012-04-15T23:07:58 < Laurenceb_> i was getting about 6lsb rms noise with 800ksps and 1.5clk sample
2012-04-15T23:08:19 < Laurenceb_> but it seems to decrease quite a lot as you clk down and increase sample time
2012-04-15T23:08:32 < Laurenceb_> wondered if anyone had done some graphs of this
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--- Day changed Mon Apr 16 2012
2012-04-16T00:19:10 < zyp> Laurenceb_, well, when you increase sample time you're pretty much doing a low pass filter, so you attenuate high frequency noise in your signal
2012-04-16T00:21:44 < zyp> oh, by the way, do you have a proper analog LPF in front of the ADC?
2012-04-16T00:23:51 < Laurenceb_> i have band pass
2012-04-16T00:24:01 < Laurenceb_> its complicated :P
2012-04-16T00:24:15 < Laurenceb_> my wifi is being annoying still :-/
2012-04-16T00:24:22 < Laurenceb_> i think the band may be conjested
2012-04-16T00:27:27 < Laurenceb_> does 1Mb/s at -55dBm sound sane?
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2012-04-16T00:30:38 <+Steffanx> Still no cable Laurenceb_ ?!
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2012-04-16T01:01:04 < Laurenceb_> aha
2012-04-16T01:01:13 < Laurenceb_> automatic channel allocator was going nuts
2012-04-16T01:01:18 < Laurenceb_> turned that off
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2012-04-16T19:11:24 < selaliadobor> Hello. I was wondering if this was the place to get help with my stm32f4 project
2012-04-16T19:12:02 < zyp> we can try :)
2012-04-16T19:15:53 < selaliadobor> OK! So I want to generate composite video on the stm32f4discovery board. It has the ineternal dac, and from my understanding an external audio dac. To generate the signal, I thought needed to setup the dma, dac, and one timer. But I can't for the life of me setup the timer. Everything happens once a micro secend in NTSC. Is it possible to have the dac chage values onece a microsecond?
2012-04-16T19:18:24 < ziph> selaliadobor: A video DAC or FPGA might work better.
2012-04-16T19:20:54 < selaliadobor> I think so too, but I would love to only use the components on a discovery board. I've seen so many projects using external components, I felt there has to be a way to make one cheap centralised video generator, without a complicated FPGA.
2012-04-16T19:21:29 < selaliadobor> Although if it cant be done no problem! :)
2012-04-16T19:22:36 < Laurenceb> i think its possible
2012-04-16T19:22:45 < Laurenceb> i was thinking about this the other day
2012-04-16T19:22:52 < Laurenceb> youll need two pwm outputs
2012-04-16T19:23:52 < selaliadobor> I wanted to use pwm but the TV samples at 1mhz. The pwm would have to be much faster than that
2012-04-16T19:27:40 < selaliadobor> Do you think I can configure TIM6 for 1mhz? If I can, the dac could get values from a certain memory location using the DMA, which Im guessing should be able to keep up with 1mhz interrupts. Also Im going for monochrome first for simplicity
2012-04-16T19:34:13 < Laurenceb> i think youll need a custom xtal
2012-04-16T19:34:21 < Laurenceb> i was looking at pal not ntsc
2012-04-16T19:34:34 < Laurenceb> pal would work with a 70.86mhz or something cpu frequency
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2012-04-16T19:39:06 < selaliadobor> we have up to 168mhz right? so that shouldn't be a problem, but setting up the prescalers and period is whats I cant get to work. Both PAL and NTSC require the voltage to change at least every microsecond. One microsecond is equivalnt to 1mhz.
2012-04-16T19:39:20 < Laurenceb> ah
2012-04-16T19:39:25 < Laurenceb> hehe
2012-04-16T19:39:35 < Laurenceb> you arent going to get full resolution
2012-04-16T19:39:51 < Laurenceb> i was just thinking about how to get the correct carrier frequencies
2012-04-16T19:40:00 < Laurenceb> and use DMA for the timer duty cycle
2012-04-16T19:40:26 < zyp> you're thinking too much :p
2012-04-16T19:41:39 < selaliadobor> im an idiot :p. I actually thought you HAD to get max resolution or it wouldnt lock on!
2012-04-16T19:43:07 < Laurenceb> you do need the correct carrier frequencies tho
2012-04-16T19:43:14 < Laurenceb> bbl
2012-04-16T19:45:45 < zyp> according to datasheet the max DAC update rate is 1 MS/s
2012-04-16T19:46:09 < zyp> so if microsecond accuracy is what you need, it's just fast enough
2012-04-16T19:47:15 < selaliadobor> awesome! this image sums up the Scanlines for NTSC http://www.rickard.gunee.com/projects/video/pic/vinfo_hline.png
2012-04-16T19:48:21 < selaliadobor> sorry thats for PAL
2012-04-16T19:49:16 < zyp> oh, and the DAC can apparently be triggered by timers, so generating the exact rate required should be possible if you get the fractions right
2012-04-16T19:51:11 < selaliadobor> I got to the point where I can use timers to generate a simple reapeating sine wave. But i cant get the timer to fire of at 1mhz
2012-04-16T19:51:42 < selaliadobor> or any specific amount of time for that matter, im just using values from examples I found
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2012-04-16T19:54:09 < zyp> that should be easy, you just set the ARR of the timer (i.e. the value it counts to) to the number of MHz it's counting with, and it will then count one full cycle each microsecond
2012-04-16T19:54:23 < zyp> and each cycle generates an update event
2012-04-16T19:54:55 < TitanMKD> hi
2012-04-16T19:55:01 < zyp> hi
2012-04-16T19:58:28 < selaliadobor> I cant figure out how fast its counting because the clock generater for excel generates code for me, but that code doesn't compile
2012-04-16T19:59:30 < zyp> I suggest writing you code yourself rather than using bad tools :)
2012-04-16T20:00:28 < selaliadobor> :) I tried but then the MCU wouldn't respond to the debugger.It would seem the one thing holding me back is the compile error "PWR_CR_VOS" is undefined
2012-04-16T20:24:00 < emeb> selaliadobor: FWIW - I've been working with the on-chip DACs for a few months now. I don't think you'll be able to do good video with them.
2012-04-16T20:24:49 < emeb> The settling time for the DACs is very slow - you'll be lucky to get 500kHz bandwidth out of them. That will make for very fuzzy NTSC.
2012-04-16T20:30:39 < selaliadobor> ok. so it would seem an external dac is the way to go.
2012-04-16T20:31:48 < emeb> Probably.
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2012-04-16T20:45:36 < selaliadobor> Ok. so I ordered a few dacs from TI and should get them tommorow morning, in  the mean time, can I get some help with the 1mhz timer, I still need that for timing
2012-04-16T20:47:43 <+jpa-> selaliadobor: what is your system clock frequency?
2012-04-16T20:49:42 < selaliadobor>  *        System Clock source                    | PLL (HSE)
2012-04-16T20:49:42 < selaliadobor>   *-----------------------------------------------------------------------------
2012-04-16T20:49:42 < selaliadobor>   *        SYSCLK(Hz)                             | 168000000
2012-04-16T20:49:42 < selaliadobor>   *-----------------------------------------------------------------------------
2012-04-16T20:49:42 < selaliadobor>   *        HCLK(Hz)                               | 168000000
2012-04-16T20:49:42 < selaliadobor>   *-----------------------------------------------------------------------------
2012-04-16T20:49:43 < selaliadobor>   *        AHB Prescaler                          | 1
2012-04-16T20:49:44 < selaliadobor>   *-----------------------------------------------------------------------------
2012-04-16T20:49:44 < selaliadobor>   *        APB1 Prescaler                         | 4
2012-04-16T20:49:44 < selaliadobor>   *-----------------------------------------------------------------------------
2012-04-16T20:49:45 < selaliadobor>   *        APB2 Prescaler                         | 2
2012-04-16T20:49:45 < selaliadobor>   *-----------------------------------------------------------------------------
2012-04-16T20:50:39 < selaliadobor> and the HSE is 8mhz
2012-04-16T20:51:25 < zyp> you know, you could just say 168 MHz
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2012-04-16T20:52:51 < selaliadobor> I'm sorry, i was trying to make it easier for you guys to understand my setup
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2012-04-16T21:08:29 <+jpa-> selaliadobor: use pastebin for longer pastes
2012-04-16T21:09:15 <+jpa-> selaliadobor: but yeah, so if you use a timer in APB1, set ARR to 41; similarly, if you use timer in APB2, set ARR to 83
2012-04-16T21:10:26 <+jpa-> (168MHz / 4 / 1MHz = 42, and for ARR subtract one because it counts from ARR downto 0)
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2012-04-16T21:58:42 < Laurenceb_> hi
2012-04-16T22:02:08 <+Steffanx> Lo
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2012-04-16T23:37:20 < dongs> sup bloggers
2012-04-16T23:37:32 < dongs> has anyone ever tried emulator AVR on STM32??
2012-04-16T23:37:45 < dongs> i want to programming STM32 using Arduino IDE
2012-04-16T23:39:19 < zyp> ew
2012-04-16T23:39:57 < zyp> that sounds worse than maple stuff
2012-04-16T23:42:26 < emeb> why? STM32 too fast for you>
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2012-04-16T23:45:24 <+jpa-> dongs: if you want avr, why not just use avr?
2012-04-16T23:47:07 < dongs> just checkin if you guys are awake
2012-04-16T23:47:30  * jpa- slaps dongs
2012-04-16T23:49:54 < dongs> kekeke
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2012-04-16T23:50:39 < dongs> see??  i made him ragequit
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--- Day changed Tue Apr 17 2012
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2012-04-17T00:05:47 <+Steffanx> How is it in trollville dongs ?
2012-04-17T00:06:58 < dongs> chilly
2012-04-17T00:15:20 < Laurenceb_> haha wut
2012-04-17T00:15:25 < Laurenceb_> avr emulator
2012-04-17T00:18:01 < dongs> hehe
2012-04-17T00:18:31 < Laurenceb_> is the a app note on stm32 adc?
2012-04-17T00:18:45 < dongs> there's a few
2012-04-17T00:18:50 < dongs> 'increasing resolution bla bla'
2012-04-17T00:19:00 < dongs> what do you need an appnote on?
2012-04-17T00:19:07 < Laurenceb_> current injection
2012-04-17T00:19:59 < dongs> @_@
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2012-04-17T00:20:33 < Laurenceb_> want to directly connect a thermistor
2012-04-17T00:22:02 < dongs> wut
2012-04-17T00:22:06 < dongs> as opposed to indirectly?
2012-04-17T00:22:24 < dongs> or do you mean through opamp or someshit
2012-04-17T00:22:49 < Laurenceb_> yes
2012-04-17T00:23:25 < Laurenceb_> just a potential divider
2012-04-17T00:23:43 < dongs> well billesc directly connects backemf from 3 phase via a voltage divider
2012-04-17T00:25:04 < dongs> doesnt the current have to do with impedance of adc pins
2012-04-17T00:25:23 < dongs> whic his in datasheet i htink
2012-04-17T00:25:36 < Laurenceb_> ok
2012-04-17T00:25:45 < Laurenceb_> reading the app note atm
2012-04-17T00:35:52 < Laurenceb_> looks like the input resistance is a non issue
2012-04-17T00:36:10 < Laurenceb_> as its just charging a cap, but the leakage current is going to cause a few lsb offset
2012-04-17T00:36:49 < Laurenceb_> and is going to change a little with temperature, so ill get some nonlinearity/mismatch between devices
2012-04-17T00:37:39 < dongs> you might as well just switch to AVR for precision analog mesurements in 10bits
2012-04-17T00:38:00 < dongs> y/n/m
2012-04-17T00:40:40 < Laurenceb_> lol
2012-04-17T00:41:09 < Laurenceb_> datasheet equation 1 is interesting
2012-04-17T00:41:26 < Laurenceb_> i get ~170K from that for 14mhz and 239.5clk sampling
2012-04-17T00:41:33 < Laurenceb_> so thats fine for a thermistor
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2012-04-17T00:43:07 <+izua> avr emulator on stm32?
2012-04-17T00:43:13 <+izua> what would be the use of such a device?
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2012-04-17T00:43:20 <+izua> running the x86 emulator on the avr
2012-04-17T00:43:34 < dongs> izua: i dunno, dudes keep saying AVR is so much easier
2012-04-17T00:43:42 <+izua> http://hackaday.com/2009/12/20/new-avr-simulator-for-linux/
2012-04-17T00:43:56 <+izua> running this on an avr simulator ran on a stm32 would be neat
2012-04-17T00:44:03 <+izua> it would make xzbit proud
2012-04-17T00:44:09 < Laurenceb_> or you could just run linux of stm32
2012-04-17T00:44:14 < Laurenceb_> and its be useful
2012-04-17T00:44:15 < dongs> no
2012-04-17T00:44:17 <+izua> no
2012-04-17T00:44:21 < Laurenceb_> lol
2012-04-17T00:44:28 < dongs> the proper way would be running lunix onavr, emulating avr
2012-04-17T00:44:39 <+izua> you could emulate avr on a pic
2012-04-17T00:44:47 <+izua> and then pic on stm32
2012-04-17T00:45:01 < Laurenceb_> yo dawg
2012-04-17T00:46:00 < dongs> I was thining more something along these lines:
2012-04-17T00:46:44 < dongs> http://dmitry.co/index.php?p=./04.Thoughts/07.%20Linux%20on%208bit
2012-04-17T00:46:52 < dongs> then you could emulate AVR on top of that
2012-04-17T00:46:53 < Laurenceb_> is there way more crosstalk between adjacent pins than between pins say 2 pins apart?
2012-04-17T00:46:55 < dongs> using simavr.
2012-04-17T00:47:10 < Laurenceb_> lol
2012-04-17T00:47:38 < Laurenceb_> i think im seeing that
2012-04-17T00:47:40 <+izua> that's what i linked bro :P
2012-04-17T00:47:44 < Laurenceb_> need to do some experiments
2012-04-17T00:47:45 <+izua> takes 4 hours to boot
2012-04-17T00:48:58 < Laurenceb_> led on one pin is shifting the output voltage by a few mv on adjacent pin
2012-04-17T00:49:06 < Laurenceb_> but apparently not on others
2012-04-17T00:49:40 < dongs> no
2012-04-17T00:49:46 <+izua> i think it might be related to the fact that last friday occureed on 13
2012-04-17T00:49:49 < dongs> your led probably just draws too much current
2012-04-17T00:50:19 < dongs> evertime I look at vcc rail of stm32 with a led blinking you can see dips each time led is on
2012-04-17T00:51:12 < Laurenceb_> thats what im seeing
2012-04-17T00:51:16 < Laurenceb_> only not on vcc
2012-04-17T00:51:23 < Laurenceb_> just on other pins
2012-04-17T00:51:23 < dongs> well, obviously
2012-04-17T00:51:32 < dongs> how big is the led?
2012-04-17T00:51:38 < Laurenceb_> seems to be worse on the adjacent pins
2012-04-17T00:51:40 < Laurenceb_> 29ma
2012-04-17T00:51:41 < dongs> arent stm pins only cpable of sourcing/sinking like 10mA
2012-04-17T00:51:48 < dongs> shit man. theres your problem
2012-04-17T00:51:49 < Laurenceb_> 25
2012-04-17T00:52:21 < Laurenceb_> i know i need to put a fet on there
2012-04-17T00:52:46 < Laurenceb_> but i might try hacking the led to a pin on its own away from other stuff tomorrow first
2012-04-17T00:55:33 < Laurenceb_> trying to measure light transmission to within one part in 10^7 is a pita
2012-04-17T00:55:58 < Laurenceb_> "Sped up emulator (6.5KHz->10KHz)" hell yeah
2012-04-17T00:56:09 < dongs> i kno rite.
2012-04-17T00:56:26 < dongs> another potential use for that proj is to run it on fpga
2012-04-17T00:56:33 < dongs> then you could overclock the shit out of emulated AVR core
2012-04-17T01:01:19 < Laurenceb_> there is _no_ use for it
2012-04-17T01:01:56 < dongs> haha
2012-04-17T01:02:07 < dongs> sure there is
2012-04-17T01:05:52 < Laurenceb_> http://www.flickr.com/photos/fsphil/6455202003/in/photostream
2012-04-17T01:05:53 < Laurenceb_> nice
2012-04-17T01:05:59 < Laurenceb_> -digital sstv mode
2012-04-17T01:10:03 < dongs> more hamfag shit?
2012-04-17T01:10:47 < dongs> ah, neat
2012-04-17T01:10:51 < dongs> about time you guys started doign that
2012-04-17T01:12:52 < dongs> Laurenceb_: so whats hte sstv transmitter?
2012-04-17T01:12:54 < dongs> also avr?
2012-04-17T01:13:24 < Laurenceb_> yes
2012-04-17T01:13:26 < Laurenceb_> arduino
2012-04-17T01:13:39 < dongs> ffffffufuuuuu
2012-04-17T01:13:45 < Laurenceb_> camera ripped off a ericsson t68i iirc
2012-04-17T01:14:04 < Laurenceb_> then stripped down jpeg library code running on the arduino
2012-04-17T01:14:36 < Laurenceb_> it misses the last layer of jpeg where the file is compressed
2012-04-17T01:14:43 < Laurenceb_> so it can lose packets and still work
2012-04-17T01:15:10 < dongs> imagine how much coooler that would be if you used STM32
2012-04-17T01:15:16 < Laurenceb_> lol
2012-04-17T01:15:29 < dongs> i mean libjpeg on avr, what the FUCK.
2012-04-17T01:20:22  * Laurenceb_ zz
2012-04-17T01:20:44 < dongs> indeed
2012-04-17T01:20:45 < dongs> gonna take a nap
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2012-04-17T04:02:17 < dongs> sup trolls
2012-04-17T04:02:23 < dongs> was a nice nap
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2012-04-17T05:42:20 < dongs> yeah? blink without blink?
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2012-04-17T17:49:36 < zyp> got the blackmagic probe, time to see if it's decent
2012-04-17T17:50:42 <+jpa-> where do you put it?
2012-04-17T17:51:32 < zyp> it's a jtag/swd adapter
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2012-04-17T17:55:51 < zyp> seems to work fine
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2012-04-17T17:58:49 < jon1012> am I the only one to find stlink 2 verrrrryyyyy slow ? :-/
2012-04-17T17:58:53 < jon1012> (under linux)
2012-04-17T17:58:57 < zyp> no
2012-04-17T17:59:03 < zyp> slow as in slow flashing?
2012-04-17T17:59:08 < jon1012> yeah
2012-04-17T17:59:12 < jon1012> "load"
2012-04-17T17:59:15 < zyp> no
2012-04-17T17:59:18 < jon1012> takes two minutes
2012-04-17T17:59:21 < zyp> it's a known problem
2012-04-17T17:59:24 < jon1012> oh ok...
2012-04-17T17:59:34 < jon1012> "446 bytes/sec"
2012-04-17T17:59:50 < zyp> saw the same at a friend who is a linux user
2012-04-17T18:00:03 < zyp> on os x I normally get 1-2 kB/s
2012-04-17T18:00:39 <+jpa-> yeah, i also get 1-2 kB/s under linux
2012-04-17T18:00:44 <+jpa-> but i have stlink 1
2012-04-17T18:00:51 < zyp> I just tested the black magic probe, I get 10 kB/s with that
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2012-04-17T18:00:57 < zyp> over swd
2012-04-17T18:01:04 < jon1012> black magic probe works on swd ?
2012-04-17T18:01:07 < zyp> yes
2012-04-17T18:01:56 < jon1012> with same files that I load with stlink ?
2012-04-17T18:02:15 < zyp> well, I just got mine
2012-04-17T18:02:26 < zyp> so I just changed gdbinit fro
2012-04-17T18:02:35 < zyp> from stlink to this
2012-04-17T18:02:51 < zyp> and flashed the same file that I've previously flashed via stlink
2012-04-17T18:03:05 < jon1012> works with stm32f4 ?
2012-04-17T18:03:11 < jon1012> (I only see cortex m3 on the website)
2012-04-17T18:03:20 < zyp> yes, I'm testing with F4 here
2012-04-17T18:03:24 < jon1012> wow
2012-04-17T18:03:47 < zyp> (gdb) mon swdp_scan
2012-04-17T18:03:47 < zyp> SW-DP detected IDCODE: 0x2BA01477
2012-04-17T18:03:47 < zyp> Available Targets:
2012-04-17T18:03:47 < zyp> No. Att Driver
2012-04-17T18:03:47 < zyp>  1      STM32F4xx
2012-04-17T18:03:55 < jon1012> nice !
2012-04-17T18:04:12 < jon1012> (I am getting tired of stlink... everytime I want to try someting I have to wait for some minutes :-/)
2012-04-17T18:04:31 < zyp> it complains about some architecture setting mismatch though, I have to figure that out
2012-04-17T18:05:09 < zyp> but otherwise it seems to work perfectly, and now I don't have to drag around the discovery board
2012-04-17T18:05:57 < zyp> I just wish it used the small 10-pin 0.05"-connector instead of the 20-pin 0.1"
2012-04-17T18:06:02 < karlp> jon1012, I don't get it anywhere near that slow targetting 32L with an stlink/v2 and texane's stlink tools,
2012-04-17T18:06:35 < karlp> not sure why yours would be so much slower
2012-04-17T18:07:17 < zyp> a friend of mine saw the same problem, targetting the F4 on the discovery board itself
2012-04-17T18:07:29 < zyp> I think he got 200 B/s or so
2012-04-17T18:07:58 < zyp> across all the computers he tested on
2012-04-17T18:08:31 < karlp> ugly.
2012-04-17T18:08:47 < karlp> though to be honest, I haven't been testing teh F4 target much
2012-04-17T18:08:52 < karlp> ie, at all.
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2012-04-17T18:09:02 < karlp> F4 has a very different flash programming manual
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2012-04-17T20:24:48 < zyp> seems flashing over swd is slightly faster than flashing over jtag
2012-04-17T20:25:01 < zyp> I get 10 kB/s over swd and 9 over jtag
2012-04-17T20:25:39 < zyp> I also solved the architecture mismatch stuff by upgradng to a newer gdb
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2012-04-17T20:42:07 < zyp> http://paste.jvnv.net/view/w7hmo
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2012-04-17T20:53:04 < karlp> what's that attach_swd command?
2012-04-17T20:53:45 < karlp> and "flash" ?
2012-04-17T20:53:57 < karlp> what extra magic have you got in your .gdbinit or somewhere?
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2012-04-17T21:06:39 < zyp> just some aliases
2012-04-17T21:07:00 <+Steffanx> nu
2012-04-17T21:07:47 < zyp> flash is reloads the file before executing load, attach_swd runs mon swdp_scan and attaches to the found device
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2012-04-17T21:19:52 <+Steffanx> lol?
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2012-04-17T21:36:15 < TitanMKD> hi
2012-04-17T21:36:23 <+Steffanx> LO
2012-04-17T21:39:16 < Thorn> falling_edge()
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2012-04-17T22:44:40 < Laurenceb_> can you turn remap on and off without doing anything to the peripheral?
2012-04-17T22:44:50 < Laurenceb_> i need to get 3 i2c busses
2012-04-17T22:45:09 < Laurenceb_> wondering if i can remap i2c1 each time i need to use sensors on the third bus
2012-04-17T22:45:17 < zyp> F1? probably
2012-04-17T22:45:23 < Laurenceb_> does remap just work like a switch?
2012-04-17T22:45:25 < Laurenceb_> ok
2012-04-17T22:45:25 < zyp> clashing addrs?
2012-04-17T22:45:52 < Laurenceb_> yeah
2012-04-17T22:46:07 < Laurenceb_> i want to interface with three sparkfun 9dof boards
2012-04-17T22:46:12 < Laurenceb_> for lame experiment
2012-04-17T22:46:34 < zyp> otherwise you could get an i2c mux
2012-04-17T22:46:55 < zyp> like PCA9544A
2012-04-17T22:47:01 <+jpa-> or a regular mux like 74*138 for the SCK line
2012-04-17T22:47:41 < zyp> but i2c muxes are i2c driven themselves, so they don't need any other IO :p
2012-04-17T22:47:47 <+jpa-> true
2012-04-17T22:48:30 < Laurenceb_> ill just use remap like a mux
2012-04-17T22:49:03 <+jpa-> Laurenceb is very fond of using the hardware in creative ways and then banging head to wall when the hardware doesn't agree :)
2012-04-17T22:49:13 < zyp> yeah
2012-04-17T22:49:35 < zyp> software too
2012-04-17T22:50:21 < zyp> he was using some weird software-triggered interrupts once
2012-04-17T22:50:46 < zyp> to be able to queue function calls
2012-04-17T22:51:32 <+jpa-> and disabling & re-enabling preload registers to queue timer ARR changes
2012-04-17T22:52:06 <+jpa-> and doing SIMD on 4-bit values in the software GPS
2012-04-17T22:54:10 < Laurenceb_> hardware has no morality
2012-04-17T22:54:22 < Laurenceb_> it doesnt care if its "right" or "wrong"
2012-04-17T22:54:32 <+jpa-> but it has ways to revenge
2012-04-17T22:54:39 < zyp> but it does care if your code is wrong :p
2012-04-17T22:57:06 <+Steffanx> "but it has ways to revenge" only when you don't read the errata jpa- :P
2012-04-17T22:58:35 <+jpa-> Steffanx: or if you happen to ebkec
2012-04-17T22:58:40 <+izua> lol
2012-04-17T22:58:46 <+izua> i did something like this over a serial on an avr
2012-04-17T22:58:49 <+izua> out of lack of serial pins
2012-04-17T22:59:28 <+izua> it should work.. in theory
2012-04-17T22:59:54 < Laurenceb_> my gumstix is drawing 40ma, nice
2012-04-17T23:00:12  * Laurenceb_ found a gumstix under a table earlier today
2012-04-17T23:00:32 < Laurenceb_> surprisingly low power
2012-04-17T23:00:32 <+Steffanx> Wha, my dirty mind goes wrong
2012-04-17T23:00:39 < Laurenceb_> lol
2012-04-17T23:00:46 <+Steffanx> "my gumstix" :P
2012-04-17T23:03:12 < Laurenceb_> thing i cant work out - it has a 24pin header, and nothing else
2012-04-17T23:05:37 <+Steffanx> so?
2012-04-17T23:06:10 < Laurenceb_> well its supposed to have to about interface pins
2012-04-17T23:06:15 < Laurenceb_> *60
2012-04-17T23:06:34 <+Steffanx> sure?
2012-04-17T23:21:15 < TitanMKD> bye
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2012-04-17T23:23:41 < Laurenceb_> well all the documents i can find say 60 or 92
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--- Day changed Wed Apr 18 2012
2012-04-18T00:11:55 < zyp> Laurenceb_, it's probably old
2012-04-18T00:12:45 <+Steffanx> flyback is back alive!
2012-04-18T00:13:00 <+Steffanx> sort of
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2012-04-18T02:20:48 < karlp> zyp: right, and what is swdp_scan?
2012-04-18T02:22:20 < zyp> it's a function defined by the gdbserver in the dongle
2012-04-18T02:22:33 < zyp> it performs detection of swd devices
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2012-04-18T13:38:49 < Thorn> >The ARM backend has improved support for Cortex-M series processors.
2012-04-18T13:38:56 < Thorn> http://llvm.org/releases/3.0/docs/ReleaseNotes.html
2012-04-18T13:40:04 < zyp> nice
2012-04-18T13:40:14 < zyp> maybe it's finally usable
2012-04-18T13:40:31 < Thorn> 3.1 will add inline assembler
2012-04-18T13:40:49 < Thorn> maybe it will be able to compile cmsis
2012-04-18T13:40:52 < zyp> ah, that's required for me
2012-04-18T13:41:06 < Thorn> or is it *integrated* assembler
2012-04-18T13:41:39 < zyp> from what I read 3.0 already have inline assembler
2012-04-18T13:41:54 < Thorn> maybe gnu as can be used
2012-04-18T13:42:41 < zyp> maybe I'll test clang/llvm later today then, see if it's able to compile my project
2012-04-18T13:51:12 < Thorn> we need to raid #llvm on OFTC
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2012-04-18T14:51:53 < Laurenceb>  3.1 will add inline assembler
2012-04-18T14:51:55 < Laurenceb> wut
2012-04-18T14:52:11 < Laurenceb> how can it not even have inline asm
2012-04-18T14:53:28 < zyp> 12:41:39 < zyp> from what I read 3.0 already have inline assembler
2012-04-18T15:11:33 <+jpa-> many compilers don't have inline assembler :)
2012-04-18T15:14:07 < zyp> I'm building llvm 3.0 now, will give it a try later today and report my findings
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2012-04-18T18:36:15 < Laurenceb> watchdawg
2012-04-18T18:36:51 <+Steffanx> nu
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2012-04-18T18:59:03 < Laurenceb> has anyone done any work with the trace output?
2012-04-18T19:00:59 < Laurenceb> can anyone explain why 	DBGMCU_Config(DBGMCU_IWDG_STOP, ENABLE); has no effect when texane is connected but gdb is not running?
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2012-04-18T19:11:50 < zyp> why would it?
2012-04-18T19:12:25 < Laurenceb> isnt the processor in stop mode on connection?
2012-04-18T19:12:43 < Laurenceb> it halts, but it seems the reset it triggered
2012-04-18T19:12:46 < Laurenceb> *is
2012-04-18T19:14:18 < Laurenceb> wait no
2012-04-18T19:14:31 < Laurenceb> it resets whilst the SWD is connected
2012-04-18T19:14:38  * Laurenceb doesnt follow
2012-04-18T19:16:05 < Laurenceb> what happens when texane connects?
2012-04-18T19:36:00 < karlp> depends on the phse of the moon.
2012-04-18T19:36:16 < karlp> there have been changes in two directions over time based on what different people felt were "the right thing" tm
2012-04-18T19:36:47 < Laurenceb> :S
2012-04-18T19:37:02 < Laurenceb> atm i have a #ifdef in the code
2012-04-18T19:37:06 < karlp> I would tend to feel thta starting the texane gdb server should have no affect on running code whatsoever
2012-04-18T19:37:14 < karlp> until gdb connects to it.
2012-04-18T19:37:21 < Laurenceb> for leaving out the power save if debugging
2012-04-18T19:37:45 < Laurenceb> it seems to halt the code
2012-04-18T19:37:56 < Laurenceb> then watchdog resets the processor
2012-04-18T19:38:08 < Laurenceb> and all the lines go high-z
2012-04-18T19:38:33 < Laurenceb> then i connect with gdb, and can flash it ok, but not do anything else
2012-04-18T19:38:40 < Laurenceb> either before or after flashing
2012-04-18T19:42:00 < Laurenceb> bbl
2012-04-18T20:03:47 < dongs> lol, texane
2012-04-18T20:03:51 < dongs> use proper tools  you dorks
2012-04-18T20:04:22 < Thorn> care to sponsor?
2012-04-18T20:04:34 < Thorn> I'd like a j-trace please
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2012-04-18T20:04:45 <+Steffanx> He Farnell and/or RS found Trollville yet dongs ?
2012-04-18T20:04:54 <+Steffanx> *Hé
2012-04-18T20:05:00 <+Steffanx> *Hey
2012-04-18T20:05:04 < zyp> I got the blackmagic thingy yesterday, so far it seems way better than stlink
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2012-04-18T20:36:46 < dongs> Thorn: $19.95 from cina
2012-04-18T20:37:01 < Thorn> j-trace?
2012-04-18T20:37:02 <+Steffanx> +h
2012-04-18T20:37:22 <+Steffanx> Only in Trollville
2012-04-18T20:37:31 <+Steffanx> *shipped to
2012-04-18T20:37:41 < dongs> jtrace is just a license on jlink, no?
2012-04-18T20:37:46 < dongs> chink jlink clones come wiht all licenses enabled
2012-04-18T20:38:12 <+Steffanx> dongs has a japanese keyboard?
2012-04-18T20:38:19 < Thorn> it's different hardware
2012-04-18T20:38:30 < Thorn> probably with a fpga and a ram buffer
2012-04-18T20:38:59 < Thorn> and to my knowlege nobody cloned it to date
2012-04-18T20:39:06 < dongs> shrug. swo not leet enough for you?
2012-04-18T20:39:35 < Thorn> it's different, I'm talking about full instruction trace via ETM
2012-04-18T20:40:51 < dongs> you seem to have fairly high demands for expensive closedsores stuff while you keep using halfassed broken opensores crap
2012-04-18T20:41:00 < dongs> its not like any of your FTDI-based toys have trace/ETM, amirite??
2012-04-18T20:41:56 < Thorn> st-link does (swv, not ETM)
2012-04-18T20:42:48 < dongs> yeah and guess what it uses for that? probably SWO
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2012-04-18T20:43:19 < dongs> again last i checkced stlink wasnt opensauce
2012-04-18T20:44:07 < dongs> j-link supports it as well
2012-04-18T20:44:08 < dongs> since like 2008.
2012-04-18T20:44:11 <+Steffanx> And it still isn't, except for the schematic
2012-04-18T20:47:00 < dongs> so what do you need jtraace for if $19.95 jlink does same thing?
2012-04-18T20:47:48 < Thorn> it's not the same thing
2012-04-18T20:48:16 < dongs> i:m pretty sure you won:t notice any difference when using it with gdb.
2012-04-18T20:48:22 <+izua> http://users.rcn.com/ted.johnson/Scratchitti.htm <- pointless is pointless
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2012-04-18T20:48:35 <+izua> although quite entertaining
2012-04-18T20:48:44 <+Steffanx> So why you link to pointless is pointless things?
2012-04-18T20:48:47 <+Steffanx> is pointless
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2012-04-18T20:48:55 <+izua> cause pointless
2012-04-18T20:49:12 <+Steffanx> Nah, the idea is nice
2012-04-18T20:49:33 <+izua> the guy seems obsessed with clocks though
2012-04-18T20:50:02 <+izua> http://users.rcn.com/ted.johnson/ :D
2012-04-18T20:50:24 <+izua> i wish i did things so awesome and pointless
2012-04-18T20:50:56 <+Steffanx> and time?
2012-04-18T20:51:10 <+Steffanx> Time to make clocks :)
2012-04-18T20:51:45 <+Steffanx> So what kind of pointless things you do?
2012-04-18T20:52:07 <+Steffanx> Except for the fact you being here
2012-04-18T20:52:50 < dongs> what the hell
2012-04-18T20:52:55 < dongs> @ rune clock
2012-04-18T20:53:30 <+Steffanx> dongs is jealous
2012-04-18T20:53:44 <+Steffanx> They don't make the that good in Trollville
2012-04-18T20:54:05 <+izua> i'm writing my degree project
2012-04-18T20:54:20 <+Steffanx> About what?
2012-04-18T20:54:25 <+izua> which is sort of pointless, given that nobody cares about what degrees you have
2012-04-18T20:54:28 <+Steffanx> And me has the idea dongs ignores gim
2012-04-18T20:54:29 <+Steffanx> him
2012-04-18T20:54:32 <+Steffanx> Which is a good thing
2012-04-18T20:54:43 <+izua> whom does dongs ignore?
2012-04-18T20:54:48 <+Steffanx> me
2012-04-18T20:54:49 <+izua> oh, about some cnc stuff
2012-04-18T20:55:03 <+Steffanx> cnc is degree levil-ish? :)
2012-04-18T20:55:31 <+izua> will probably make the dnc on stm32
2012-04-18T20:55:45 <+izua> i guess it is, people make 555 circuits and buy premade robots
2012-04-18T20:56:26 <+Steffanx> Yeah, my anemometer was harder to make :P
2012-04-18T20:56:47 <+Steffanx> but i had some class mates who did even more basic stuff
2012-04-18T20:56:52 <+izua> is it too simple?
2012-04-18T20:57:21 <+Steffanx> Nah, don't know what the 'average' student does over there
2012-04-18T20:58:15 <+izua> i've known people who took out pcbs out of rc cars and 'made' their own radio stuff :)
2012-04-18T20:58:21 <+Steffanx> Here it's very simplistic, like a robot balancing on a ball. They didn't even finish it and they were with TWO students
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2012-04-18T20:59:28 <+izua> it's sort of the only electro-mechanical thing i've done lots of times before
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2012-04-18T20:59:46 <+izua> they had some insanenly stupid assignments, if you didn't pick one
2012-04-18T20:59:48 <+Steffanx> cnc you mean?
2012-04-18T21:00:00 < zyp> in my class we were three groups that did pretty advanced stuff, and then one guy that played a bit with image filters in labview
2012-04-18T21:00:05 <+izua> like a 'hydraulic alu'
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2012-04-18T21:00:12 < zyp> looked like he just got handed something to keep him busy
2012-04-18T21:00:18 <+Steffanx> Yeah, that's what all student should do zyp :P
2012-04-18T21:00:21 <+izua> lol
2012-04-18T21:00:25 < zyp> then got a passing grade just out of pity
2012-04-18T21:00:38 <+izua> about two thirds of the pople here make stuff like a website or a database design
2012-04-18T21:00:46 <+Steffanx> EE ?
2012-04-18T21:01:17 <+izua> nah, 'automatics' (not sure what the term is). i'm in the parallel course though - EE
2012-04-18T21:01:44 <+Steffanx> Your project was nice too zyp , but you did it with two others didn't you?
2012-04-18T21:02:05 <+izua> but the courses share most of the classes and all the teachers, we're just supposed to do more stuff involving electronics as opposed to software
2012-04-18T21:02:14 <+izua> zyp: what did you do?
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2012-04-18T21:02:19 < zyp> Steffanx, yes, we were a group of three
2012-04-18T21:02:33 < zyp> izua, http://bin.jvnv.net/f/mdVxb.JPG <- made this
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2012-04-18T21:03:04 <+izua> sd, usb, what does it do?
2012-04-18T21:03:17 < dongs> is that the board.
2012-04-18T21:03:27 <+izua> dongs: no, that's the board :)
2012-04-18T21:03:36 < dongs> ah yes it is
2012-04-18T21:03:38 <+Steffanx> THE board
2012-04-18T21:03:46 <+Steffanx> The one and only board
2012-04-18T21:03:47 <+izua> youdontsay.jpg
2012-04-18T21:03:54 < dongs> TEH BOARD
2012-04-18T21:03:57 <+izua> i dislike group assignments
2012-04-18T21:03:58 < zyp> Steffanx, except we made ten of those
2012-04-18T21:04:22 < dongs> i dislike people in general
2012-04-18T21:04:25 <+izua> i had to talk with various teachers 'till i could convince them to not assign me in a team
2012-04-18T21:04:25 <+Steffanx> Ahr, but it's the one and only design?
2012-04-18T21:04:29 < zyp> izua, depends on the group
2012-04-18T21:04:30 <+Steffanx> That's good dongs
2012-04-18T21:04:43 <+izua> i guess.
2012-04-18T21:05:00 <+Steffanx> izua has no good classmates?
2012-04-18T21:05:07 <+izua> haha
2012-04-18T21:06:12 <+izua> there are two, rather knowledgeable individuals, but both are 40+, and didn't really care about making something interesting
2012-04-18T21:06:25 <+Steffanx> 40+ :S
2012-04-18T21:06:30 < zyp> the other people on my group were nice and managed to keep themselves busy while I did my thing, so it worked out nicely
2012-04-18T21:06:43 <+Steffanx> busy ith games?
2012-04-18T21:06:50 <+Steffanx> with
2012-04-18T21:06:53 <+izua> busy with mspaint.exe
2012-04-18T21:06:59 <+izua> and skyrim-1911.exe
2012-04-18T21:07:00 < zyp> nah
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2012-04-18T21:07:20 <+Steffanx> I had some projects with guys like that
2012-04-18T21:07:36 <+izua> i wanted to make a buspirate like thingie on a stm32
2012-04-18T21:07:47 <+izua> but several teachers failed to see the use/interesting part in that
2012-04-18T21:07:51 < zyp> concept shit, talking to people, getting funding, etc…
2012-04-18T21:08:15 < zyp> one of the guys did a 3d-printed enclosure for the board
2012-04-18T21:08:38 <+izua> (inb4 square board, round enclosure)
2012-04-18T21:09:03 <+Steffanx> Teachers...
2012-04-18T21:09:04 < zyp> not round, but some weird shapes everywhere
2012-04-18T21:11:56 <+Steffanx> No photo's of that?
2012-04-18T21:12:01 <+Steffanx> -'
2012-04-18T21:12:33 < zyp> not that I bother digging up
2012-04-18T21:12:49 <+Steffanx> but i do
2012-04-18T21:13:06 <+Steffanx> I bother that you did it up
2012-04-18T21:14:12 < zyp> I probably have the enclosure in a box somewhere here, so if you'll ever come visit me you can go dig it out of the box :p
2012-04-18T21:15:08 <+Steffanx> Ok, deal
2012-04-18T21:15:45 < cjbaird> How much success can I expect using a build-from-source vanilla GCC and the STM32F-Discovery board? ... I gather that "has on-board USB for easy programming" infers it does the umass trick for downloading code (or at least, dfu) .. My available systems are NetBSD/amd64, and Debian/mips, so those Linux x86 binary packages a la Codesourcery are out of the question (..not that I would touch them :P)
2012-04-18T21:16:39 < dongs> what
2012-04-18T21:16:42 <+izua> it also has a serial bootloader
2012-04-18T21:16:44 < dongs> no it has a proper stlink debugger
2012-04-18T21:16:49 < dongs> which works great in windows.
2012-04-18T21:17:12 < dongs> if youre gonna flash & pray-debug you might as well just stick wiht avr
2012-04-18T21:17:39 < Thorn> lol
2012-04-18T21:17:48 < Thorn> Arduino: the Flash and Pray Experience
2012-04-18T21:17:50 <+izua> and the usb isn't dfu, it's the stlink thingie, iirc. dfu over usb is available on usb chips (and the discovery board target is a f101 iirc)
2012-04-18T21:17:54 <+Steffanx> Nothing wrong with dW or JTAH and AVRs dongs
2012-04-18T21:17:55 <+izua> rofl
2012-04-18T21:18:27 < dongs> Steffanx: correct, nothign wrong except no usable dw/jtag devices
2012-04-18T21:18:47 <+Steffanx> Not? Most modern AVRs have at least dW
2012-04-18T21:18:52 <+izua> depends on what you want
2012-04-18T21:19:00 < dongs> Steffanx: im talking about debugger hardware.
2012-04-18T21:19:14  * izua still uses PICs for one off small stuff
2012-04-18T21:19:18 <+Steffanx> oh, you mean the jtagice/avr dragon?
2012-04-18T21:19:21 < dongs> i.e. dragon which claims "256k xmega download in 60 seconds" and whose debugging speed is even worse
2012-04-18T21:19:30 <+izua> (which happen to be cheaper than tiny avrs)
2012-04-18T21:19:32 < dongs> or the $500 jtagice which is only marginally faster
2012-04-18T21:19:36 <+Steffanx> The JTAGICE mk3 doesn't look that bad
2012-04-18T21:19:42 <+Steffanx> which is 200$
2012-04-18T21:19:58 <+Steffanx> And the avrone! is 200$ too :)
2012-04-18T21:20:21 < cjbaird> ... I'm a msp430fag, fags.  -_-
2012-04-18T21:20:34 < dongs> i'll stick wiht stm8 for small shit and whatever ARM stuff for shit that matters.
2012-04-18T21:20:47 < dongs> at least stm8 has proper ocd / debugger shit
2012-04-18T21:20:48 <+Steffanx> At least you didn't say "I'm a picfag, fags" :P
2012-04-18T21:21:04 < dongs> well, youre obviously a picfag, but thats your problem not mine
2012-04-18T21:21:20 < dongs> o wait that was izua
2012-04-18T21:21:28 <+Steffanx> Only in Trollville
2012-04-18T21:22:22 < dongs> i wish they'd fix stm8-stdperiphlib TIMx stuff same way it works in stm32
2012-04-18T21:22:43 < dongs> having separate TIM1_xxx TIm2_xxx functions/defines/enums for each timer is huge fucking lose
2012-04-18T21:22:47 <+Steffanx> No way
2012-04-18T21:23:03 <+Steffanx> That 'stdperiphlib' …. i used that once and i
2012-04-18T21:23:07 <+Steffanx> ll never use it again
2012-04-18T21:23:15 < dongs> you like wasting time it seems
2012-04-18T21:23:37 < dongs> maybe you're like zyp, who just does TIM1->CR = 0x7a69;
2012-04-18T21:23:38 <+Steffanx> No, I wasted to much time debugging by digging into the lib itself
2012-04-18T21:23:39 < dongs> without any comments
2012-04-18T21:23:40 < dongs> amirite?
2012-04-18T21:23:50 <+Steffanx> No I do use the register names
2012-04-18T21:24:05 < zyp> that's CR
2012-04-18T21:24:57 <+Steffanx> I agree that sucks too dongs, "TIM1->CR = 0x7a69;" <= that
2012-04-18T21:25:13 < dongs> zyp, link to your code that does that +
2012-04-18T21:25:25 <+Steffanx> I know where to find that code
2012-04-18T21:25:31 < dongs> yah
2012-04-18T21:25:34 < dongs> i dont have hte url here.
2012-04-18T21:25:39 <+Steffanx> http://cgit.jvnv.net/
2012-04-18T21:25:55 <+Steffanx> And then the project with the fancy codename
2012-04-18T21:25:56 <+Steffanx> "suzumebachi"
2012-04-18T21:26:07 <+Steffanx> What does that mean zyp ?
2012-04-18T21:26:16 < zyp> ask dongs
2012-04-18T21:26:25 <+Steffanx> So i guess it's japanese
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2012-04-18T21:27:07 < dongs> wow theres a lot of shit in zyp:s svn
2012-04-18T21:27:41 <+izua> so what _do_ you se?
2012-04-18T21:27:42 < zyp> it's not just mine, and most of my stuff is way old
2012-04-18T21:27:42 <+izua> use
2012-04-18T21:27:51 <+izua> uwe's hermann lib?
2012-04-18T21:27:59 < cjbaird> I'd say 'suzumebachi', as in the giant japanese wasp.
2012-04-18T21:28:09 <+Steffanx> Google translate agrees
2012-04-18T21:28:12 <+izua> ongaku_player	Music player that won't suck.
2012-04-18T21:28:34 < dongs> wtf
2012-04-18T21:28:43 < zyp> ha
2012-04-18T21:28:43 < dongs> zyp you ahvent touched that code for like months
2012-04-18T21:28:48 < dongs> or is git failing it?
2012-04-18T21:29:00 < dongs> i thought you were dveloping shit on that board, or are you not committing it
2012-04-18T21:29:11 < dongs> Age+ 2011-11-19
2012-04-18T21:29:13 < zyp> you're looking at the wrong branch
2012-04-18T21:29:23 < zyp> master points to the old F1 code
2012-04-18T21:29:26 <+Steffanx> http://cgit.jvnv.net/suzumebachi/log/?h=usb
2012-04-18T21:29:30 < zyp> I haven't merged F4 stuff to master yet
2012-04-18T21:29:42 <+Steffanx> 2 weeks ago
2012-04-18T21:29:51 < dongs> git is 2 hard 4 me
2012-04-18T21:30:01 <+Steffanx> That cgit sucks :)
2012-04-18T21:31:58 < dongs> mmh
2012-04-18T21:32:11 <+jpa-> where can i complain if a memory alloy wire remembers only stupid shapes
2012-04-18T21:32:21 <+Steffanx> You can complain here
2012-04-18T21:32:22 < dongs> at least your i2c code has less magic numbers in it now
2012-04-18T21:32:23 < zyp> jpa-, that way --->
2012-04-18T21:32:57 <+Steffanx> Trollville is the perfect place to complain jpa-
2012-04-18T21:33:15 <+Steffanx> What is jpa- doing with 'maw' ?
2012-04-18T21:34:13 <+jpa-> flowers, of course
2012-04-18T21:34:41 <+Steffanx> flowers? I missed something?
2012-04-18T21:35:08 <+jpa-> nah, just a boring school project
2012-04-18T21:35:58 <+Steffanx> Show some pictures when it's finished :)
2012-04-18T21:36:46 <+izua> he
2012-04-18T21:36:50 <+izua> 's hiding epic ideas
2012-04-18T21:36:57 <+izua> and my enter is too close to the '
2012-04-18T21:37:09 <+Steffanx> Same here
2012-04-18T21:37:12 <+Steffanx> US keyboard layout :)
2012-04-18T21:37:20 <+jpa-> this stuff is difficult to solder :F
2012-04-18T21:37:37 <+jpa-> solder kind of sticks to it, but the stuff is so smart that it walks away when i bring the hot iron close to it
2012-04-18T21:38:02 <+Steffanx> Hehe
2012-04-18T21:38:23 <+Steffanx> Sometimes i wish i could see what other people see :)
2012-04-18T21:39:03 <+Steffanx> We all need that google virtual reality thing
2012-04-18T21:39:12 < dongs> ah hwre we go
2012-04-18T21:39:20 < dongs>  TIM1.CCMR1 = 0x0201; TIM1.SMCR = 0x54; TIM1.CCER = 0x31; TIM1.DIER = 0x07;
2012-04-18T21:39:36 < dongs> hello zyp
2012-04-18T21:39:52 <+jpa-> i wish i had my poisonous flux here; that would teach this wire some manners
2012-04-18T21:41:27 < Thorn> jpa-: you're not supposed to put hallucinogens in your flux
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2012-04-18T21:50:38 <+Steffanx> Coffee!
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2012-04-18T21:54:29 <+jpa-> Steffanx: http://kapsi.fi/~jpa/stuff/other/memory_alloy.webm   (sorry for crappy video quality)
2012-04-18T21:55:41 <+Steffanx> :D
2012-04-18T21:57:23 <+jpa-> i wonder how to tame this stuff
2012-04-18T21:58:15 <+izua> dude... duude..
2012-04-18T21:58:17 <+izua> that's awesome
2012-04-18T21:58:22 <+izua> but how do i view the stream?
2012-04-18T21:58:29 <+Steffanx> Use chrome
2012-04-18T21:58:41 <+Steffanx> or vlc
2012-04-18T21:58:46 <+izua> tried both
2012-04-18T21:58:58 <+izua> vlc waits and then closes, chrome shows me some ever loading ascii
2012-04-18T21:59:09 <+Steffanx> You shake to much jpa-
2012-04-18T21:59:13 <+izua> 'use mac'
2012-04-18T21:59:21 < Tom_itx> bbl
2012-04-18T21:59:29 <+Steffanx> VLC 1.1.12 seems to play it very well
2012-04-18T21:59:53 <+jpa-> Steffanx: apparently it plays like 200% speed :)
2012-04-18T21:59:58 <+Steffanx> Opera too, but with a different player it seems
2012-04-18T22:00:08 <+Steffanx> Only when i reload that happens jpa-
2012-04-18T22:00:26 <+jpa-> hmm.. i need something to crimp on this
2012-04-18T22:02:32 <+izua> hmm
2012-04-18T22:02:35 <+izua> shows the same thing over and over
2012-04-18T22:02:39 <+izua> soldering
2012-04-18T22:02:44 <+izua> and then fast forwards to an ugly intern of yours
2012-04-18T22:02:50 <+Steffanx> :P
2012-04-18T22:02:51 <+izua> you should fire him
2012-04-18T22:03:06 <+Steffanx> i guess "webm" isn't IT yet
2012-04-18T22:03:31 <+izua> i never heard of webm
2012-04-18T22:03:51 <+jpa-> ubuntu has broken my ogg :(
2012-04-18T22:03:58 <+izua> which major company's crap-infused proprietary code is it?
2012-04-18T22:04:03 <+jpa-> google's
2012-04-18T22:04:14 <+Steffanx> http://www.webmproject.org/
2012-04-18T22:04:17 <+jpa-> not propietary, though
2012-04-18T22:04:30 <+izua> huh
2012-04-18T22:04:43 <+izua> in other news, google is \dropping plans to take over the world
2012-04-18T22:05:09 <+jpa-> instead, focuses on taking over the galaxy?
2012-04-18T22:05:09 <+Steffanx> They still do
2012-04-18T22:05:48 <+izua> huh
2012-04-18T22:05:54 <+izua> and ffmpeg supports it too
2012-04-18T22:06:43 <+izua> Add a little bit of obscurity to your self-made christmas present. A fake Chinese setup guide sheet might have your friend confused for a moment, not knowing if the present actually is self-made or just of really crappy (or excellent!) Chinese quality.
2012-04-18T22:07:14 <+jpa-> lol my worst blog post every :)
2012-04-18T22:07:24 <+jpa-> *ever
2012-04-18T22:09:02 <+izua> hmm
2012-04-18T22:09:08 <+izua> what web backend is that?
2012-04-18T22:09:39 <+izua> it looks uncommonly plain and simple for the current amount of bloatware every cms brings nowadays
2012-04-18T22:09:49 <+izua> (i love that)
2012-04-18T22:10:21 <+Steffanx> looks homemade
2012-04-18T22:10:33 <+jpa-> rastaspyge.. so mostly homemade
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2012-04-18T22:10:51 <+jpa-> it's mostly a few scripts around the kid template engine
2012-04-18T22:11:18 < Thorn> someone still uses kid?!
2012-04-18T22:11:38 <+Steffanx> People use template engines?
2012-04-18T22:12:31 <+jpa-> Thorn: well no point changing it when it works?
2012-04-18T22:12:41 <+jpa-> it was new and fancy back in 2008 :)
2012-04-18T22:13:07 < Thorn> I guess so, just haven't heard about it for a long time
2012-04-18T22:13:23 <+jpa-> yeah it is a bit of a dead project
2012-04-18T22:13:31 <+jpa-> genshi is faster and nicer
2012-04-18T22:14:24 <+Steffanx> Most templating languages are ugly imho
2012-04-18T22:14:50 <+izua> {$agree}
2012-04-18T22:15:50 < Thorn> genshi?
2012-04-18T22:15:56 <+jpa-> kid is nice in that it always generates valid xml
2012-04-18T22:15:58 <+Steffanx> wikipedia knows
2012-04-18T22:16:17 <+izua> all i know of is geshi, the syntax highlighter
2012-04-18T22:16:29 < Thorn> it's basically chameleon vs. mako these days
2012-04-18T22:16:32 <+Steffanx> Which is fugly large
2012-04-18T22:18:58 <+Steffanx> Why I didn't see a rant from dongs yet?!?!
2012-04-18T22:19:09 <+izua> i can provide one.
2012-04-18T22:19:26 <+izua> the web is a cesspool, i wish all browsers would be lynx-styl.e
2012-04-18T22:19:26 <+Steffanx> You're from trollville too?
2012-04-18T22:19:38 <+izua> close
2012-04-18T22:19:54 <+jpa-> Thorn: well mako apparently doesn't have the xml-ness of kid, tal etc; and chameleon seems a lot like the basic TAL (which is fine of course)
2012-04-18T22:19:55 <+izua> http://themetapicture.com/just-a-small-music-festival/
2012-04-18T22:20:17 <+jpa-> Thorn: but nothing particularly new :)
2012-04-18T22:20:39 <+Steffanx> Crap crap and more crap izua ? :P
2012-04-18T22:21:15 <+jpa-> haha got it! http://koti.kapsi.fi/jpa/stuff/pix/P4180134.JPG
2012-04-18T22:21:29 <+Steffanx> You cheated
2012-04-18T22:21:38 <+izua> Steffanx: some of it
2012-04-18T22:21:42 <+izua> lol
2012-04-18T22:22:22 <+izua> what will you make with it?
2012-04-18T22:22:23 <+Steffanx> Next time use: http://static.aanbodpagina.nl/img/342/10-stuks-krokodillen-bekjes-3-5-cm-kleur-zwart1.jpg jpa- :P
2012-04-18T22:22:37 <+izua> krokodillen ._.
2012-04-18T22:22:41 <+jpa-> Steffanx: not good for actual installation :)
2012-04-18T22:23:04 <+Steffanx> It's only a boring school project..
2012-04-18T22:23:26 <+jpa-> well yeah but it can't have krodillens hanging all around :)
2012-04-18T22:29:48 <+jpa-> hmm, i wish i could program this stuff through swd
2012-04-18T22:29:57 <+jpa-> now i have to bent it to the shape and heat
2012-04-18T22:30:08 <+Steffanx> lol swd..
2012-04-18T22:30:29 <+izua> USB programmable memory wire
2012-04-18T22:30:51 <+Steffanx> Bluetooth!
2012-04-18T22:31:11 <+izua> i see a business here for surprise dickshapes out of everyday items
2012-04-18T22:35:03 <+Steffanx> :S
2012-04-18T22:35:05 <+izua> *chuck testa commercial voice:* coathanger? nope, jpa's surprise usb wire! toothbrush? no way, jpawire. fork? guess again!
2012-04-18T22:35:54 <+jpa-> well, currently, nice coil? no - crappy coil; nice straight wire? yeah, that's all i can manage
2012-04-18T22:37:00 <+Steffanx> Is there no metal that bends when you heat it?
2012-04-18T22:37:07 <+Steffanx> Would be a nice combination
2012-04-18T22:37:22 <+jpa-> ah, this one does bend
2012-04-18T22:37:25 <+izua> bimetallic strip thermometers work that way
2012-04-18T22:37:33 <+jpa-> but it bends in crazy directions :)
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2012-04-18T22:59:46 < Thorn> http://www.amazon.com/Construction-Operation-Clandestine-Drug-Laboratories/dp/1559501081
2012-04-18T23:00:24 <+Steffanx> uh?
2012-04-18T23:01:12 < Thorn> amazon actually sells stuff like that
2012-04-18T23:04:59 <+izua> i think otto snow is the refernece if you want that kind of stuff
2012-04-18T23:05:17 <+izua> that books looks as legit as the SQNY brand
2012-04-18T23:06:20 <+izua> (or oyu can just watch breaking bad)
2012-04-18T23:08:11 < Thorn> nope, that's not actually among my interests
2012-04-18T23:16:51 < Laurenceb_> nice
2012-04-18T23:56:44 < dongs> Laurenceb_: status
--- Day changed Thu Apr 19 2012
2012-04-19T00:04:52 < dongs> some duder emailed me he wants to start programming stm32 in asm
2012-04-19T00:04:52 < Laurenceb_> failing
2012-04-19T00:04:56 < Laurenceb_> heh
2012-04-19T00:05:09 < Laurenceb_> why uk customs suck so bad
2012-04-19T00:05:21 <+Steffanx> because you like it
2012-04-19T00:05:23 < dongs> UK sucks in general
2012-04-19T00:05:28 < dongs> or *.eu really.
2012-04-19T00:05:33 <+Steffanx> So does ASIA
2012-04-19T00:05:45 < dongs> israel is great
2012-04-19T00:05:46 <+Steffanx> Especially Trollville
2012-04-19T00:05:46 < Laurenceb_> at least they make stuff
2012-04-19T00:05:49 < Laurenceb_> lol
2012-04-19T00:06:01 < Laurenceb_> i read this and thought of flyback
2012-04-19T00:06:03 < Laurenceb_> http://www.sociallyinept.com/Archive/UnderstandingHorniness.htm
2012-04-19T00:06:05 < Laurenceb_> nsfw
2012-04-19T00:07:33 < dongs> more like not safe for anyone
2012-04-19T00:08:12 <+Steffanx> I think you think about flyback too often Laurenceb_
2012-04-19T00:08:18 < dongs> seconded
2012-04-19T00:08:20 <+izua> five times a day?
2012-04-19T00:08:26 < Laurenceb_> "4) Whenever you find yourself staring lustfully at a woman's behind, be mindful of the fact that pungent logs of fecal matter are pushed sloppily out of that sweet ass on a daily basis."
2012-04-19T00:08:31 < Laurenceb_> oh dear izua
2012-04-19T00:08:34 <+Steffanx> So dongs is from Isreal and has proxy in japan?
2012-04-19T00:08:51 < Laurenceb_> its so we dont know hes from mossad
2012-04-19T00:09:10  * Laurenceb_ gets blown up by a motorbike bomb triggered by stuxnet
2012-04-19T00:09:36 < dongs> For past articles, go to the Archive.
2012-04-19T00:09:38 < dongs> 404'd
2012-04-19T00:09:49 < dongs> i was lookign for more insightful commentary
2012-04-19T00:09:49 <+Steffanx> Me find a part of the bomb. See's a text
2012-04-19T00:09:53  * Steffanx reads the text
2012-04-19T00:10:00  * Steffanx reads "Made in Trollville"
2012-04-19T00:10:17 < dongs> where do you get your drugs from Steffanx
2012-04-19T00:10:29 <+Steffanx> I'm in NL do i have to say more?
2012-04-19T00:10:34 < dongs> nope
2012-04-19T00:10:43 <+izua> Laurenceb_: how exactly did you run into that article
2012-04-19T00:10:47 < Laurenceb_> http://www.sociallyinept.com/archive.htm
2012-04-19T00:10:49 <+izua> dongs: mexico
2012-04-19T00:10:50 < dongs> thats waht im wondering.
2012-04-19T00:11:00 < Laurenceb_> izua: google
2012-04-19T00:11:12 <+Steffanx> I actually dont do drugs, I'm my own drug dongs :)
2012-04-19T00:11:41 <+izua> Laurenceb_: what were you searching for, is what i mean
2012-04-19T00:11:49 <+izua> also, thumbsup for frontpage site methinks
2012-04-19T00:11:59 <+Steffanx> Frontpage :D
2012-04-19T00:12:03 <+Steffanx> express
2012-04-19T00:12:14 < Laurenceb_> i cant remeber
2012-04-19T00:12:17 <+Steffanx> Microsoft FrontPage 4.0 :D :D :D
2012-04-19T00:12:20 <+izua> at school i used to make two pages link to eachother
2012-04-19T00:12:32 <+izua> and then make a graphical map of it, and choose to extend all links
2012-04-19T00:12:37 <+izua> crashed every time
2012-04-19T00:13:16 <+Steffanx> Hey nothing wrong with Frontpage!
2012-04-19T00:13:37 < Laurenceb_> anyways
2012-04-19T00:13:47 <+Steffanx> It's how i got 'into programming'. First you start with FP, then you want to do it yourself etc.
2012-04-19T00:14:12 < dongs> wat you say
2012-04-19T00:14:26 <+Steffanx> It's how i got 'into programming'. First you start with FP, then you want to do it yourself etc.
2012-04-19T00:14:39 <+Steffanx> Oh, no questionmark
2012-04-19T00:14:40 < Laurenceb_> has SWD output been reverse engineered on discovery
2012-04-19T00:14:45 < Laurenceb_> ?
2012-04-19T00:14:50 < dongs> for what
2012-04-19T00:14:59 <+Steffanx> SWD is 'open' afaik Laurenceb_
2012-04-19T00:15:08 < dongs> you mean debug_printf over swd?
2012-04-19T00:15:10 < Laurenceb_> yeah i know
2012-04-19T00:15:21 <+Steffanx> Just read the very interesting ARMv7 documents
2012-04-19T00:15:26 < Laurenceb_> but it needs to be implimented on discovery?
2012-04-19T00:15:33 < dongs> just spend $20 on proper tools, asshole
2012-04-19T00:15:42 < Laurenceb_> dongs: you can do more than debug-printf
2012-04-19T00:15:46 <+Steffanx> STlink == proper
2012-04-19T00:15:47 < dongs> stop this lunix nonsense
2012-04-19T00:15:50 < Laurenceb_> lol
2012-04-19T00:15:51 < dongs> aye
2012-04-19T00:15:54 < dongs> but texane = trash
2012-04-19T00:15:58 < Laurenceb_> lol
2012-04-19T00:16:02 < Laurenceb_> texane works for me
2012-04-19T00:16:06 < dongs> use keil/crossworks or at least something less gay
2012-04-19T00:16:11 <+Steffanx> Laurenceb_ actually meant SWV ?
2012-04-19T00:16:14 < Laurenceb_> yes
2012-04-19T00:16:20 < Laurenceb_> SWV not SWD
2012-04-19T00:16:22 < dongs> thats cuz your definition of "works" is pretty close to arduino
2012-04-19T00:16:28 <+Steffanx> That's 'easy' Laurenceb_
2012-04-19T00:16:41 <+Steffanx> Get your stm32f4 discovery
2012-04-19T00:16:50 <+Steffanx> Get texane from github
2012-04-19T00:17:02 <+Steffanx> Write some code that opens the 3rd endpoint
2012-04-19T00:17:20 <+Steffanx> And then read the ARMv7 docs again to understand how the SWV protocol works
2012-04-19T00:17:21 < dongs> i patched stlink updater to put stlinkv2 code into non-f4 discovery boards
2012-04-19T00:17:34 <+Steffanx> The SWV stream is just dumped over that 3rd enpoint
2012-04-19T00:17:40 <+Steffanx> the RAW format
2012-04-19T00:17:48 < dongs> or rather, patched it to put stlink/swim combo version regardless of what was on chip before
2012-04-19T00:18:10 < dongs> even though its kinda pointless to do swim on stm32 boards cuz the pins arent broken out
2012-04-19T00:18:20 <+Steffanx> The stlink on the F1's don't have that SWV pin connected afaik
2012-04-19T00:18:25 <+Steffanx> Yes, that :P
2012-04-19T00:18:42 < dongs> well, you could always desolder the processor and make your own board for it.
2012-04-19T00:18:48 < dongs> i'd do it buy autally buying stmlinkv2 is cheaper
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2012-04-19T00:18:53 < dongs> buy=but
2012-04-19T00:19:20 < Laurenceb_> oh nice
2012-04-19T00:19:26 <+Steffanx> I actually had to write some code for that before karlp returned from his holidays
2012-04-19T00:19:29 < Laurenceb_> so its the printf stuff+timestamps?
2012-04-19T00:19:31 <+Steffanx> but i.. forgot about it
2012-04-19T00:19:36 < dongs> http://search.digikey.com/scripts/DkSearch/dksus.dll?x=0&y=0&lang=en&site=us&KeyWords=ST-LINK%2FV2
2012-04-19T00:19:44 < Laurenceb_> hmm we need a gui to display it
2012-04-19T00:19:44 < dongs> ?? why bother.
2012-04-19T00:19:54 <+Steffanx> stlink === cheap
2012-04-19T00:20:08 <+Steffanx> I don't use windows
2012-04-19T00:20:17 < dongs> no i meant, why bother desoldering a chip off -discovery when stlink is only 30bucks itself
2012-04-19T00:20:17 <+Steffanx> I REFUSE TO USE WINDOWS
2012-04-19T00:20:24 <+Steffanx> oh, don't know
2012-04-19T00:20:26 <+izua> why
2012-04-19T00:20:35 <+Steffanx> because i can
2012-04-19T00:20:42 < cjbaird> stlink is/isn't a hardware dongle?
2012-04-19T00:20:46 <+Steffanx> it is
2012-04-19T00:20:54 < dongs> http://media.digikey.com/Photos/STMicro%20Photos/ST-LINK%5EV2.jpg < stlink
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2012-04-19T00:21:44 < cjbaird> ..so it's needed for programming the Discovery boards. Hmm. :/
2012-04-19T00:21:49 < dongs> its not.
2012-04-19T00:21:56 < dongs> discovery boards have that  same circuit on them
2012-04-19T00:22:05 < dongs> minus extra breakout pins  you dont really need
2012-04-19T00:22:40 < cjbaird> Okay, so much like the spy-bi-wire included on the msp430 launchpad boards..
2012-04-19T00:22:41 < dongs> so SWV pin on stlink goes to SWO on stm32? or wat
2012-04-19T00:22:46 <+Steffanx> http://www.naffets.nl/share/a-20120418-232229.jpg stlink
2012-04-19T00:22:53 < Laurenceb_> i just use a f4discovery as a debug
2012-04-19T00:23:30 < dongs> nice gimping
2012-04-19T00:23:37 <+Steffanx> No gimp
2012-04-19T00:23:38 < Laurenceb_> i use gimp too
2012-04-19T00:23:40 < dongs> missing copper bars text
2012-04-19T00:23:55 <+Steffanx> skitch plus it is
2012-04-19T00:23:57 < dongs> the default gimp effect every 1st time lunix user discovers
2012-04-19T00:24:08 < dongs> then makes a new logo with copper bar text and penguins
2012-04-19T00:24:26 < dongs> i dont think i can have something more htan lunix.
2012-04-19T00:24:28 < cjbaird> needs moar MS Impact font.
2012-04-19T00:24:29 < dongs> have = hate
2012-04-19T00:24:50 <+Steffanx> You do that intentionally dongs ? Lunix?
2012-04-19T00:25:08 < dongs> yeah, unix for lunatics.
2012-04-19T00:25:08 < Laurenceb_> s/linux/jews
2012-04-19T00:25:30 < dongs> well, not saying unix isnt for lunatics by default anyway.
2012-04-19T00:25:31 <+Steffanx>  /jews/loljews
2012-04-19T00:25:42 < dongs> I prefer to get work done
2012-04-19T00:25:43 < Laurenceb_> haha thats his realname
2012-04-19T00:25:43 <+izua> jewnix?
2012-04-19T00:26:07 < dongs> there's been very little chats in libopencm3
2012-04-19T00:26:12 < dongs> is that still alive?
2012-04-19T00:26:25 <+Steffanx> It's a miracle this channel is still 'alive'
2012-04-19T00:26:26 <+izua> i don't know
2012-04-19T00:26:31 < dongs> even LESS chats than openbldc
2012-04-19T00:26:34 <+izua> is uwe ever around?
2012-04-19T00:26:46 <+Steffanx> uwe .. i remember that nick from something
2012-04-19T00:26:48 <+Steffanx> *know
2012-04-19T00:26:55 <+izua> he's sort of the author?
2012-04-19T00:27:00 <+Steffanx> #sparkfun i guess
2012-04-19T00:27:27 < dongs> #ripofffun
2012-04-19T00:27:30 <+Steffanx> Say "ponies" izua :P
2012-04-19T00:27:37 <+Steffanx> Or Pony pony
2012-04-19T00:27:47 <+Steffanx> Yes, there
2012-04-19T00:28:04 <+izua> i do not like the show
2012-04-19T00:28:11 <+izua> if you can call it that
2012-04-19T00:28:13 <+Steffanx> Yes you do
2012-04-19T00:28:39 <+Steffanx> Anyway it's getting 'late'
2012-04-19T00:28:48 <+izua> fourth time today Steffanx ?
2012-04-19T00:28:57 < Laurenceb_> heh
2012-04-19T00:28:59 <+Steffanx> LOL izua
2012-04-19T00:29:04 < Laurenceb_> sparkfun does have insane prices
2012-04-19T00:29:14 <+Steffanx> I don't 'jizz' during work..
2012-04-19T00:29:19 < Laurenceb_> ...
2012-04-19T00:29:25 < Laurenceb_> thats erm good
2012-04-19T00:29:28 < dongs> Laurenceb_: insane? i think their itg3200 rbeakout is still $49.95
2012-04-19T00:29:40 <+Steffanx> Yeah, but sometimes you have no choice
2012-04-19T00:29:46 < Laurenceb_> to jizz?
2012-04-19T00:29:55 <+Steffanx> No, to get something from sf
2012-04-19T00:30:09 < dongs> i buy right angle BNC connectors from sparkfun
2012-04-19T00:30:20 < dongs> they're cheapest AND include the washer/nut hardware
2012-04-19T00:30:23 < dongs> nothing on digikey comes close
2012-04-19T00:30:43 <+Steffanx> I mean, find me another store that sells the mpu-60x0
2012-04-19T00:30:47 < dongs> http://www.sparkfun.com/products/672 i dunno where they got that shit from
2012-04-19T00:30:54 < dongs> Steffanx: i sell them for like 12 bucks
2012-04-19T00:30:55 <+Steffanx> except cdiweb.. that's canada/us only
2012-04-19T00:31:12 < dongs> http://abusemark.com/store/index.php?main_page=index&cPath=5&zenid=66794374a136e8b00b613c5f830710c5
2012-04-19T00:31:18 < zyp> Steffanx, you can get them from invensense self last time I checked
2012-04-19T00:31:29 <+Steffanx> afaik that's us/canada only zyp
2012-04-19T00:31:32 < dongs> zyp, with $75 fedex
2012-04-19T00:31:38 < dongs> no, they will send international
2012-04-19T00:31:40 <+izua> abusemark?
2012-04-19T00:31:41 < dongs> but will fuck you on shipping
2012-04-19T00:31:55 < zyp> dongs, yeah, I think it was $50 here
2012-04-19T00:31:55 <+Steffanx> ¥1,100 :)
2012-04-19T00:32:14 < dongs> yeah $13.5 or someshit in usd.
2012-04-19T00:32:27 < cjbaird> I live ~3 kilometres from a Farnell/Element14 warehouse. I collect things from the trades counter same-day. :D
2012-04-19T00:32:33 <+Steffanx> We use euros here :P
2012-04-19T00:32:48 < dongs> shouldbe 11eur then
2012-04-19T00:32:55 < Laurenceb_> izua: abusemark is dongs webstore
2012-04-19T00:32:58 < dongs> yeah
2012-04-19T00:33:04 < dongs> i think jpy/eur rate is pretty close now
2012-04-19T00:33:08 < dongs> at least it was few weeks ago when i checked last
2012-04-19T00:33:10 <+izua> i was about to reference that bash.org real money  quote
2012-04-19T00:33:12 < Laurenceb_> i think its cuz hes called mark and spews loads of abuse
2012-04-19T00:33:18 < dongs> incorrect.
2012-04-19T00:33:26 <+Steffanx> How can you ask 13.5$ when even cdiweb asks 15$?!?!
2012-04-19T00:33:42 < dongs> cuzi have hundreds and i'm cool that way
2012-04-19T00:33:52 < Laurenceb_> cuz he get it cheap from china
2012-04-19T00:34:06 <+izua> do you even run a profit with that?
2012-04-19T00:34:31 <+Steffanx> abusemark/dongs has no 6000 :(
2012-04-19T00:34:45 < zyp> neither does sparkfun
2012-04-19T00:34:56 < dongs> exactly, which was your original complaint :)
2012-04-19T00:35:01 < dongs> i might have some 6000's by may
2012-04-19T00:35:10 < dongs> at least thats waht my distributor said.
2012-04-19T00:35:11 <+Steffanx> sparkfun has no 6050 either, though
2012-04-19T00:35:18 < dongs> they used to?
2012-04-19T00:35:25 <+Steffanx> Arh
2012-04-19T00:35:26 <+Steffanx> oops
2012-04-19T00:35:29 <+Steffanx> i mean 6000 :)
2012-04-19T00:35:37 < dongs> http://www.sparkfun.com/products/10937
2012-04-19T00:35:59 <+Steffanx> Yeah, that's what i meant :) No 6000, only the i2c-ish 6050
2012-04-19T00:36:14 <+Steffanx> I have a i2c phobia
2012-04-19T00:36:15 < dongs> they dont even ahve a breakout for that shit
2012-04-19T00:36:16 < dongs> wtf
2012-04-19T00:36:21 < dongs> yeah, i2c sucks for sure
2012-04-19T00:36:28 < dongs> oh they do
2012-04-19T00:36:31 < dongs> http://www.sparkfun.com/products/11028
2012-04-19T00:36:34 <+izua> one wire is even better
2012-04-19T00:36:41 <+Steffanx> 39.95 :)
2012-04-19T00:36:47 < Laurenceb_> where better==more annoying
2012-04-19T00:36:51 <+izua> you get all the goodies of i2c without the clock
2012-04-19T00:37:12 < dongs> http://i.imgur.com/svvtd.jpg i was gonna put this shit on abusemark for around 25-30bucks but too lazy
2012-04-19T00:37:27 < dongs> plus then i:d have to support tarduino retards
2012-04-19T00:37:33 <+Steffanx> too lazy :S
2012-04-19T00:37:45 <+Steffanx> And what's that exactly dongs ?
2012-04-19T00:37:47 < dongs> its mpu6050+mag
2012-04-19T00:37:51 <+Steffanx> :)
2012-04-19T00:38:08 < dongs> so enough for shitty motion sensing
2012-04-19T00:39:29 <+Steffanx> "Don't abuse the store. When in doubt, ask." best Conditions of Use ever
2012-04-19T00:42:53 <+Steffanx> When I order I also want a postcard from Trollville dongs :P
2012-04-19T00:42:57 < dongs> http://www.sparkfun.com/products/10550 this is the bnc they have thats awesome
2012-04-19T00:43:13 < dongs> 10+qty price is amazing
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2012-04-19T00:44:01 < dongs> cheapest shit at digikey without mounting screw/washer is like $3.something
2012-04-19T00:44:27 <+Steffanx> Whoa, not possible
2012-04-19T00:44:28 < dongs> im not sure i have any trollville postcards left.
2012-04-19T00:44:42 < dongs> thats probably the only item at sparkfun thats reasonably priced though
2012-04-19T00:47:00  * Steffanx => ZZzz
2012-04-19T00:48:19 < dongs> gonna take a nap. nothing interesting happening today, etiher it seems
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2012-04-19T01:00:06 < dongs> aww i got email from mouser and it ended up google spam
2012-04-19T01:00:20 < dongs> Texas Instruments DK-LM3S-DRV8312 is a development platform based on a Stellaris LM3S818 Cortex™ M3 microcontroller and designed for spinning 3-phase brushless DC and brushless AC motors. The kit also demonstrates the InstaSPN BLDC motor control solution's operational advantages with simplified tuning, immediate acceleration adaptation, and reliable low-speed operation.
2012-04-19T01:03:36 < dongs> http://www.mouser.com/Search/Refine.aspx?Keyword=595-DRV8312DDW
2012-04-19T01:03:38 < dongs> that is cheap
2012-04-19T01:03:47 < dongs> ok, nap time
2012-04-19T01:08:22 < karlp> that link is just to a motoro driver?
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2012-04-19T04:07:35 < cjbaird> You should all now give me a big group brohug because I just ordered my first stm32 board...
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2012-04-19T04:21:20 < cjbaird> Come on, hurry-up with the mantouching.
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2012-04-19T16:54:27 <+Steffanx> I remember someone here had a document which some info about which stm32's are which 'density'..
2012-04-19T16:54:37 <+Steffanx>  /document/webpage
2012-04-19T16:59:17 <+izua> the one with the R, L, V and B suffixes?
2012-04-19T16:59:29 <+Steffanx> Yes
2012-04-19T17:00:31 <+izua>  i think those were the 'datasheets'
2012-04-19T17:01:07 <+Steffanx> Yes, but i remember a webpage about it.. which had everything on a single page
2012-04-19T17:01:08 <+izua> or not. i never understood their weird naming conventions for papers, given the part footprint and naming is pretty good
2012-04-19T17:01:24 <+izua> stm32.izua.ro/Edit:Density
2012-04-19T17:01:31 < karlp> Steffanx: this? http://false.ekta.is/wp-content/uploads/2011/11/stm32_datasheet_map.html
2012-04-19T17:01:37 <+izua> :D
2012-04-19T17:01:42 <+izua> still need to install that script tho
2012-04-19T17:02:19 <+Steffanx> I guess that was THE page karlp
2012-04-19T17:05:01 < karlp> I should get around to updating it with the F0,
2012-04-19T17:05:15 < karlp> and probably if there have been any other updated sheets
2012-04-19T17:05:36 < karlp> I can't seem to find a way to check for updates short of looking up each part in turn and all sheets and manually comparing revision numbers
2012-04-19T17:05:51 < karlp> there's no, "show all recent documents for this processor family"
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2012-04-19T19:09:45 <+Steffanx> So how well does that blackbox work zyp ?
2012-04-19T19:13:04 < Laurenceb> http://gallery.apexhab.org/index.php/Apex-III/Launch-1/Recovery-from-the-North-Sea/apex-iii-l1-recovery-2
2012-04-19T19:13:07 < Laurenceb> ^lol
2012-04-19T19:13:26 < Laurenceb> looks a little expensive
2012-04-19T19:17:24 < cjbaird> I'd be highly motivated to stomp on something covered in religious school stickers... :P
2012-04-19T19:17:24 <+Steffanx> Not really
2012-04-19T19:17:32 <+Steffanx> uh cjbaird ?!
2012-04-19T19:17:35 < zyp> Steffanx, better than anything else I've used
2012-04-19T19:18:27 < cjbaird> Stef: one of the photos has a "KEEP FAITH!" on the side..
2012-04-19T19:18:38 < cjbaird> meh christian schools :P
2012-04-19T19:19:24 <+jpa-> zyp: so did llvm work any better than year ago?
2012-04-19T19:20:07 < zyp> I forgot to test
2012-04-19T19:20:59 < cjbaird> From the looks of it, they're using a canon point&shoot camera-- no doubt using the CHDK custom firmware. I use it myself. :P
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2012-04-19T22:02:48 < cjbaird> bit-banding... what a weird feature; I can see how it's useful, though.
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2012-04-19T22:55:36 < Laurenceb_> what does JNTRST do?
2012-04-19T22:57:29 <+Steffanx> http://en.wikipedia.org/wiki/Joint_Test_Action_Group TRST
2012-04-19T22:57:52 <+Steffanx> afaik that's that pin
2012-04-19T22:59:00 <+Steffanx> Played with the blackmagic yet zyp ?
2012-04-19T23:00:32 < zyp> define «played with»
2012-04-19T23:01:07 <+Steffanx> Did some tests ..
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2012-04-19T23:03:30 <+Steffanx> Hmm, the project looks a bit dead-ish.. (last update was ~4 months ago :( )
2012-04-19T23:11:18 <+Steffanx> That Black Magic Debug Probe has no enclosure zyp ?
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2012-04-19T23:35:12 < zyp> no, I'm planning to shrink-wrap it
2012-04-19T23:36:58 < zyp> and yes, I've tested it
2012-04-19T23:37:17 < zyp> as I said, it seems to work better than the other stuff I've used
2012-04-19T23:39:40  * Laurenceb_ passes zyp some cling film
2012-04-19T23:40:29 < zyp> :p
2012-04-19T23:40:43 <+Steffanx> openocd seems to have some sort of support for the stlinkv1/v2 but i failed at getting it functional
2012-04-19T23:41:18 < zyp> I don't like openocd
2012-04-19T23:42:43 < zyp> one of the nicest part of the blackmagic is that it's fully self contained, no gdbserver middleware is required
2012-04-19T23:43:12 <+Steffanx> Yeah, that looks nice
2012-04-19T23:43:20 < zyp> you just plug in the usb, get an emulated serial port and connect gdb directly to the serial port
2012-04-19T23:43:50 < zyp> and both jtag and swd is working wonderful here
2012-04-19T23:44:39 < zyp> stlink on discovery board with texane gives me 1-2 kB/s flashing speed, blackmagic gives me 9 kB/s in jtag mode and 10 in swd mode
2012-04-19T23:44:52 <+Steffanx> Yay, swd is faster :)
2012-04-19T23:45:09 < zyp> that's expected since that was one of the design goals for swd
2012-04-19T23:46:39 < zyp> oh, and it's supposed to show the floating point registers of the M4F too, I haven't gotten around to test that yet
2012-04-19T23:48:47 <+Steffanx> I see the wiki isn't up-to-date
2012-04-19T23:49:22 < zyp> no, and not the source repo on SF either, newest code is apparently hosted at github
2012-04-19T23:49:37 <+Steffanx> Yeah, indeed
2012-04-19T23:49:38 < zyp> https://github.com/gsmcmullin/blackmagic
2012-04-19T23:50:58 < zyp> you could probably complain to gsmcmullin about that, since he's idling in this channel :p
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2012-04-19T23:52:02 <+Steffanx> Ah, now I understand why I thought i saw that nick before
2012-04-19T23:56:39 <+Steffanx> maybe i should get me a blackmagic probe debug box too :)
2012-04-19T23:56:41 <+Steffanx> -box
--- Day changed Fri Apr 20 2012
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2012-04-20T02:12:08 < emeb> http://www.cnx-software.com/2012/04/19/emcraft-open-sources-uclinux-and-u-boot-for-cortex-m3-and-m4-mcus/
2012-04-20T02:12:29 < emeb> OH: that post is missing a picture of Xzibit.
2012-04-20T02:44:42 < dongs> no shit.
2012-04-20T02:44:54 < dongs> now all we need is a uClunix AVR emulator
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2012-04-20T02:50:31 < zyp> then we can run linux on emulated arm on emulated avr on uclinux on cortex-m
2012-04-20T02:57:00 < dongs> 16mbytes of psram
2012-04-20T02:57:03 < dongs> sounds expensive as shit
2012-04-20T02:57:29 < dongs> how are they dong psram and nor flash on samae stm32?
2012-04-20T02:57:45 < dongs> dong = doing
2012-04-20T02:58:33 < zyp> FSMC got four banks
2012-04-20T02:58:42 < dongs> ah doesit? ok
2012-04-20T02:58:46 < cjbaird> I certainly never saw a 16MB 30pin SIMM in real life, and I ran an ISP back when they were around..
2012-04-20T02:59:16 < zyp> PSRAM is DRAM with SRAM interface IIRC
2012-04-20T02:59:19 < zyp> so it's not SRAM
2012-04-20T03:00:09 < cjbaird> I want in on your exclude STM32 club now .. https://twitpic.com/9bs4ea
2012-04-20T03:01:23 < zyp> inb4 <dongs> twatpic
2012-04-20T03:01:44 < dongs> hit is still loading
2012-04-20T03:01:48 < dongs> cuz it loads 700k of javascript and ads
2012-04-20T03:02:19 < dongs> the title was cutoff in my IE window so all i could see was "a 3V LCD, 168M..."
2012-04-20T03:02:26 < cjbaird> (He surfs web with javascript enabled...)
2012-04-20T03:02:27 < dongs> I thought the rest said "168Mega"
2012-04-20T03:02:59 < dongs> cjbaird: if you know about z80, does halt w/interrupts enable just sleep until interrupt occurs?
2012-04-20T03:05:59 < cjbaird> ...for bendable definitions of 'sleep'. I partially-remember the original Z80 just busy-looping (clock running, etc.) .. I don't know it that well-- I was a 6502 kid.
2012-04-20T03:07:10 < dongs> well i was reversing some code the other ady and it did something like setup SIO; EI; HALT; then read SIO.
2012-04-20T03:07:32 < dongs> didnt make much sense other than halt not actually "halting" anything but just looping until interrupt occured
2012-04-20T03:10:12 < cjbaird> The Z80 does do external IRQs if you do the appropriate data bus feeding.
2012-04-20T03:10:17 < zyp> that's what x86 does
2012-04-20T03:10:40 < zyp> hlt on x86 is kind of like wfi on arm
2012-04-20T03:11:02 < cjbaird> Z80 and x86 having the common ancestor...
2012-04-20T03:11:43 < zyp> what use is a halt instruction if you can't wake up from it?
2012-04-20T03:12:27 < zyp> anyway bed
2012-04-20T03:13:41 < cjbaird> Z80 boards were usually several chips, including a CTC clock, where timer alarms usually came from..
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2012-04-20T11:51:33 <+Steffanx> nu
2012-04-20T11:53:04 < Laurenceb_> http://yro.slashdot.org/story/12/04/19/2053238/posting-photos-of-olympics-could-land-you-in-court
2012-04-20T11:53:06 < Laurenceb_> wtf
2012-04-20T11:53:47 < Laurenceb_> better order my fire extinguishers
2012-04-20T11:54:00 < Laurenceb_> torch relay comes past front of my house next week
2012-04-20T11:54:44 <+Steffanx> me goes to london to take pictures
2012-04-20T11:54:47 <+Steffanx> *photos
2012-04-20T11:55:19 < Laurenceb_> https://picasaweb.google.com/mojo.chan/OlympicSite?authuser=0&authkey=Gv1sRgCIy6n_if3Pj_dA&feat=directlink#5574724121003647730
2012-04-20T11:55:26 < Laurenceb_> oh shit.. someones in jail now
2012-04-20T11:55:34 <+Steffanx> uh?
2012-04-20T11:55:52 <+Steffanx> I don't believe they can do that
2012-04-20T11:56:17 < Laurenceb_> apparently the IOC mandates they pass special laws
2012-04-20T11:56:32 <+Steffanx> Just like the FIFA
2012-04-20T11:57:12 < Laurenceb_> yeah
2012-04-20T11:59:30 <+Steffanx> Here in NL they already spend @#$%ˆ& 188 million for the olympics in 2028 :S
2012-04-20T11:59:32 <+Steffanx> Weird shit
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2012-04-20T14:11:57 <+Steffanx> How long did it take to get that blackmagic probe from NZ to Norway zyp ?
2012-04-20T14:12:07 <+Steffanx> ~3 weeks?
2012-04-20T14:12:08 < Laurenceb> can anyone here explain the timer complimentary output?
2012-04-20T14:12:18 < Laurenceb> its just inverted normal output?
2012-04-20T14:13:03 < zyp> Steffanx, I don't remember, I just placed an order and one day it arrived
2012-04-20T14:13:09 <+Steffanx> hmpf
2012-04-20T14:14:00 < zyp> according to mail history it's exactly three weeks ago today, and I've had it for some days now
2012-04-20T14:14:08 <+Steffanx> ty :)
2012-04-20T14:14:17 < zyp> so less than three weeks, with easter in between
2012-04-20T14:15:18 <+Steffanx> Ok, I'll see :)
2012-04-20T14:20:35 <+Steffanx> Laurenceb, yeah with some extra features
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2012-04-20T15:11:27 <+Steffanx> ST doesn't provide a document/sheet with an overview of all stm32's with the peripherals it supports, do they?
2012-04-20T15:12:16 < Laurenceb> i think they have a goofy .exe that does that
2012-04-20T15:12:41 <+Steffanx> Yes?
2012-04-20T15:12:56 <+Steffanx> You say they because they do everything with exe's?
2012-04-20T15:13:01 <+Steffanx> -'
2012-04-20T15:13:17 <+Steffanx> I should stop using 's :P
2012-04-20T15:13:28 < Laurenceb> i saw on their site somewhere...
2012-04-20T15:13:30 < karlp> they have a funky part selector tool,
2012-04-20T15:13:35 < karlp> it's kinda neat, but kinda unstable
2012-04-20T15:13:53 < karlp> you put in the periphs you want, and it shows you which parts match, and what alternate functions and pins to use for each part
2012-04-20T15:13:58 < karlp> and yeah, it's a windows exe
2012-04-20T15:14:11 <+Steffanx> Yes, but i want to have an overview :)
2012-04-20T15:14:14 < karlp> but I haven't see a chart or anything.
2012-04-20T15:16:11 <+Steffanx> Where do i find that application?
2012-04-20T15:20:19 <+Steffanx> I officially hate the st website
2012-04-20T15:20:54 < zyp> the answer is: you don't find it
2012-04-20T15:20:56 < zyp> :p
2012-04-20T15:27:48 <+Steffanx> That too
2012-04-20T15:27:59 <+Steffanx> but you click on something, move the another page
2012-04-20T15:28:00 < karlp> I can't find it right now, remind me tonight and I'ðll see if I can find the app not number or something on the computer at home.
2012-04-20T15:28:20 <+Steffanx> And it didn't remember you selected another tab
2012-04-20T15:28:23 <+Steffanx> JS crap
2012-04-20T15:30:38 < Laurenceb> also it randomly goes chinese
2012-04-20T15:34:16 < karlp> I've never had that happen at least
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2012-04-20T15:50:20 <+Steffanx> st also has a STM32F0DISCOVERY now …
2012-04-20T15:58:39 < karlp> yup
2012-04-20T15:58:47 < karlp> and it even includes some proto space
2012-04-20T15:59:02 < karlp> looks reasonably nice for one-offs
2012-04-20T16:01:03 < karlp> sandwhich the two boards, power via usb, dishes are done!
2012-04-20T16:01:57 < karlp> is it just me, or have they raised the prices of the discovery boards recently?
2012-04-20T16:02:04 < karlp> wasn't the VL board under $10 when it came out?
2012-04-20T16:02:10 < karlp> digikey's selling it for 15 now
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2012-04-20T16:07:11 < karlp> neither mouser nor digikey seem to have it stocked yet though.
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2012-04-20T17:43:27 <+Steffanx> the f0discovery has an lqfp64 so .. i guess it has enough
2012-04-20T17:51:44 <+izua> simplest parallel flash programmer is a ftdi chip
2012-04-20T17:51:52 <+izua> you put the chip in and you get a parallel port, sort of.
2012-04-20T17:54:04 <+Steffanx> ft2232 ?
2012-04-20T17:54:07 <+Steffanx> hasm ore that 8 afaik
2012-04-20T17:54:35 < karlp> what flash are you programming that you need more than 8 pins?
2012-04-20T17:54:45 < karlp> people still use that?
2012-04-20T17:55:09 < karlp> don't hey have an existing pile of tools for that?
2012-04-20T17:57:07 < Laurenceb> buy some more tampons then
2012-04-20T17:57:36 <+Steffanx> sure?
2012-04-20T17:57:49 < Laurenceb> try to go in a separate cell from bubba then
2012-04-20T17:57:51 < karlp> they work pretty well in the arse for diarhea on teh bus in third world countries
2012-04-20T17:58:02 < karlp> I'm serious
2012-04-20T17:58:46 < karlp> I'm talking about when it's too late :)
2012-04-20T18:00:04 < Laurenceb> mmm meth
2012-04-20T18:00:16 <+Steffanx> Where?
2012-04-20T18:00:29 < Laurenceb> in his mirror
2012-04-20T18:01:01 <+Steffanx> whatever
2012-04-20T18:01:40 <+Steffanx> Weird YANKIE :P
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2012-04-20T18:03:07 < Laurenceb> lol
2012-04-20T18:03:41 <+Steffanx> Hmm, wasn't me :P
2012-04-20T18:05:13 <+Steffanx> but who was it?
2012-04-20T18:05:28 -!- mode/##stm32 [-q *!*@c-98-219-134-156.hsd1.pa.comcast.net] by ChanServ
2012-04-20T18:08:22 <+Steffanx> dekar or izua ? :P
2012-04-20T18:08:41 <+izua> dunno, both are technically away
2012-04-20T18:08:47 <+Steffanx> hmm
2012-04-20T18:09:04 <+Steffanx> Why one of them talks?
2012-04-20T18:09:09 <+izua> is he out of meds again?
2012-04-20T18:09:21 <+izua> 3g, the wonder of modern society
2012-04-20T18:10:18 < Laurenceb> i think he's spending some time out of daycare
2012-04-20T18:16:19 < jon1012> stm32 powered : http://www.youtube.com/watch?v=iYNpmA42zgk and http://www.youtube.com/watch?v=JPQFuViZyHo
2012-04-20T18:25:26 <+izua> impressive.
2012-04-20T18:25:28 <+izua> what panel is that?
2012-04-20T18:28:50 < jon1012> custom :) well, it's a prototype of a led screen I'm designing (to sell on my website, hackspark.fr)
2012-04-20T18:29:13 <+Steffanx> Je ne parle pas francais :(
2012-04-20T18:29:21 <+Steffanx> *français
2012-04-20T18:30:35 < jon1012> idea is to provide a simple and documented API for both USB/UART and ethernet...and some software to send parts of the screen for example
2012-04-20T18:40:19 <+izua> wait.. so you soldered the leds by hand?
2012-04-20T18:40:24 <+izua> or you actually bought the led screen?
2012-04-20T18:41:06 < jon1012> I bought the led screen parts with modification asked to supplier :)
2012-04-20T18:41:17 < jon1012> and did the control system
2012-04-20T18:42:09 < jon1012> (and made the structure to assemble the modules)
2012-04-20T18:42:40 <+izua> how are the leds powered? dedicated driver+shift register chips?
2012-04-20T18:42:48 < jon1012> yeah
2012-04-20T18:42:59 < jon1012> shift register + octal for rows as usual...
2012-04-20T18:43:11 < jon1012> :)
2012-04-20T18:43:33 <+izua> you have a lot of stuff with blinking leds o_O
2012-04-20T18:45:14 < jon1012> where ?
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2012-04-20T18:50:44 <+izua> youtube channel
2012-04-20T18:51:15 < jon1012> oh :)
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2012-04-20T20:13:38 < emeb> Wondering if there are any quick/easy ways to push a C function into SRAM on STM32.
2012-04-20T20:13:48 < emeb> (using GCC)
2012-04-20T20:14:24 <+Steffanx> On the fly?
2012-04-20T20:14:40 < emeb> No, at reset time.
2012-04-20T20:14:58 < emeb> Rest of code still in flash too...
2012-04-20T20:15:28 < emeb> Did a bit off googling on it last night - most discussions were targeted at NXP ARMs
2012-04-20T20:15:50 < emeb> suggested various ways involving hairy manipulations w/ objcopy.
2012-04-20T20:16:27 < emeb> There seemed to be some approaches that just tagged the function w/ an attribute to put it in a different section though.
2012-04-20T20:17:22 <+Steffanx> Yeah, i was looking for that
2012-04-20T20:17:46 < karlp> hmm, I saw a gcc function attribute for it somewhere
2012-04-20T20:17:56 < emeb> Cool - would like to see that.
2012-04-20T20:18:10 < cjbaird> I would think you could do it with a linker script.. but it's not something I've done yet on stm32
2012-04-20T20:18:16 < karlp> well, it still depends on your linker scripts and startup code to make sure it gets to the right place
2012-04-20T20:18:23 < emeb> There's some disagreement about how much benefit you get from SRAM vs Flash.
2012-04-20T20:18:31 < karlp> it's always done via the linker scripts, as far as I understand it.
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2012-04-20T20:19:23 < emeb> I remember there was a substantial benefit back on ARM7 processors w/ slow flash like the ADI ADuC702x parts.
2012-04-20T20:19:38 < karlp> and, given that there's no super awesome set of "standard" linker scripts for arm, unlike say, avr-libc I think you end up doing it youself
2012-04-20T20:19:49 < emeb> probably.
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2012-04-20T20:27:04 <+jpa-> even something as silly as __attribute__((section("data"))) might work
2012-04-20T20:27:10 <+jpa-> hmm, make that .data
2012-04-20T20:27:51 < karlp> or even .madness, it's only the linker script that uses the names, .data is just a convention :)
2012-04-20T20:28:24 <+Steffann> How much faster is it to execute something from ram?
2012-04-20T20:29:00 < Thorn> faster? not slower?
2012-04-20T20:29:41 -!- tavish [~tavish@unaffiliated/tavish] has quit [Quit: leaving]
2012-04-20T20:29:43 <+Steffann> Yeah
2012-04-20T20:29:45 <+Steffann> Faster
2012-04-20T20:30:03 < Thorn> it's harward, separate buses for ram and flash
2012-04-20T20:30:28 <+jpa-> flash has some wait states when running at the highest clock rates
2012-04-20T20:31:18 <+jpa-> the flash preload buffer usually overcomes these waits, but if you have a lot of branches etc, the wait states may be quite significant
2012-04-20T20:31:27 <+jpa-> the cortex-m3 doesn't have any real cache AFAIK
2012-04-20T20:33:54 < emeb> jpa-: that attrib was what I was thinking.
2012-04-20T20:34:04 < emeb> Probably cook up a simple test for that.
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2012-04-20T21:09:22 < emeb> looking at the disassembly & symbol tables that should work.
2012-04-20T21:09:42 < emeb> No idea yet if the code is properly written into SRAM at startup tho...
2012-04-20T21:11:06 < Thorn> emeb: no, the standard startup copies .data and zeroes .bss and that's it
2012-04-20T21:11:11 < emeb> was "fun" getting some code that would show it since -O3 inlined the simple functions I was trying to push into SRAM.
2012-04-20T21:11:35 < emeb> Thorn: but since the code is in .data, might it not be in the blob that gets copied?
2012-04-20T21:12:24 < emeb> hard to tell so far since the disassembly listing only does .text
2012-04-20T21:12:34 < Thorn> it will if you  put it in .data
2012-04-20T21:14:41 < emeb> did an objdump -D (all sections) and the function is in .data, so it should work.
2012-04-20T21:14:54 < emeb> Gotta download it to my discovery F1 to know for sure though.
2012-04-20T21:20:15 <+jpa-> though on discovery F1 you will not have any speed benefit :)
2012-04-20T21:20:36 <+jpa-> (because it only goes up to 24MHz and there are no wait states at 24MHz)
2012-04-20T21:24:31 < emeb> jpa-: understood, but I'm just checking if the concept even works here.
2012-04-20T21:24:38 < emeb> And, FWIW, It does!
2012-04-20T21:25:48 < emeb> I actually have an STM32F105 project running @ 72MHz that might(?) benefit from this.
2012-04-20T21:27:01 < emeb> so, long story short: void __attribute__((section(".data"))) ram_function() {}
2012-04-20T21:30:11 <+Steffann> Here the assembler/compiler  complains when you do that
2012-04-20T21:30:31 < emeb> Steffann: probably depends on how your linker script is set up.
2012-04-20T21:30:38 <+Steffann> Yes, probably :p
2012-04-20T21:30:58 <+Steffann> This is some copy paste from zyp
2012-04-20T21:31:07 <+jpa-> though what kind of a crazy linker script wouldn't have .data?
2012-04-20T21:31:20 < emeb> I believe I'm using the Atollic one from the Std. Periph Lib tarball.
2012-04-20T21:31:21 <+Steffann> It has .data
2012-04-20T21:31:31 <+Steffann> "Warning: ignoring changed section attributes for .data"
2012-04-20T21:31:52 < emeb> maybe they put a noexec attrib on .data?
2012-04-20T21:31:54 <+jpa-> ah yeah, you have to mark it rwx instead of rw
2012-04-20T21:32:26 < Thorn> does it matter with no mmu?
2012-04-20T21:32:35 <+jpa-> only for the linker warnings
2012-04-20T21:32:36 < emeb> it does to the linker
2012-04-20T21:32:49 <+Steffann> I don't know anything abotu linker script :0
2012-04-20T21:32:51 <+Steffann> )
2012-04-20T21:33:14 < emeb> Just read it - it pretty much makes sense, although I couldn't write one from scratch.
2012-04-20T21:33:18 <+jpa-> Steffann: look at the top. it says   ram (rw)    make it say ram (rwx)  :)
2012-04-20T21:33:33 <+Steffann> It is rwx :)
2012-04-20T21:33:45 <+jpa-> hmph
2012-04-20T21:33:48 <+jpa-> then pebkec
2012-04-20T21:33:51 <+Steffann> Sure :P
2012-04-20T21:34:01 <+Steffann> Blame zyp, he wrote the linker script
2012-04-20T21:34:34 < emeb> Tried the script from the Std Periph Lib? Those seem pretty sane.
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2012-04-20T21:35:09 <+Steffann> Maybe i should just try to solve it with this linker script
2012-04-20T21:35:16 <+Steffann> to get some more knowledge about it :)
2012-04-20T21:36:19 < emeb> laudable.
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2012-04-20T21:52:35 <+Steffann> Can emeb dump his linkerscript somewhere on the web for me?
2012-04-20T21:54:04 < karlp> he said it was the atollic one from the stdperiph zip
2012-04-20T21:54:21 < karlp> you know, the one that ST provides, but the file license says you can't use unless you're an atollic customer?
2012-04-20T21:54:51 < karlp> I've got some in: https://github.com/karlp/kkstm32_base/tree/master/ld_scripts
2012-04-20T21:54:55 <+Steffann> It's easier for him to dump it on the web, than me downloading the entire stdperipheral lib
2012-04-20T21:55:33 < karlp> you don't already have it?
2012-04-20T21:55:41 <+Steffann> I removed it
2012-04-20T21:56:45 <+Steffann> Don't ask why
2012-04-20T21:58:38 < Thorn> rage rm -rf ?
2012-04-20T21:59:34 <+Steffann> At least I understand how the entry code works now :)
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2012-04-20T22:26:23 < cjbaird> summon-arm-toolchain on a slow MIPS machine is suffering...
2012-04-20T22:27:15 <+izua_> try running it on the x86 emulator ran on an avr
2012-04-20T22:31:12 < emeb> Steffann: Here you go: http://pastebin.com/BFVWZXpt
2012-04-20T22:32:59 < cjbaird> I don't suppose the STM32F4 Discovery boards' shipped demo code exercises the usart? (like the launchpad does) .. I just had a go at testing the butt^H^H^Hs pirate on PA9/PA10 while I wait for the compile, but didn't see anything.
2012-04-20T22:35:38 <+Steffann> Anyone knows how i force GCC not to remove the assembly files i generated?
2012-04-20T22:37:00 < Tom_itx> tell it to stop
2012-04-20T22:37:03 < Thorn> -save-temps
2012-04-20T22:37:05 < cjbaird> -save-temps, or normally, I'd add a "gcc -S" to the makefile
2012-04-20T22:37:20 < Laurenceb_> canyone here know how the adc resistor/cap thing works?
2012-04-20T22:37:30 < Laurenceb_> i dont really follow from the datasheet
2012-04-20T22:37:44 < cjbaird> -c -save-temps
2012-04-20T22:37:47 < Laurenceb_> oh wait maybe i do
2012-04-20T22:38:04 < Laurenceb_> the cap charging resistor changes with the sample time setting?
2012-04-20T22:38:34 <+Steffann> -save-temps did it, thanks
2012-04-20T22:43:30 < Laurenceb_> wait no.. sampling resistor is fixed
2012-04-20T22:43:32 < Laurenceb_> wtf
2012-04-20T22:51:31 < Laurenceb_> oh - according to st forum its just a RC filter, you need to add external resistor to cutoff bandwidth
2012-04-20T22:51:34 < Laurenceb_> lame
2012-04-20T22:52:00 < Laurenceb_> on the +ive side that means i can improve my adc performance massively
2012-04-20T22:52:10 < karlp> which is, just perhaps, why they did it?
2012-04-20T22:52:26 < karlp> rather than choose one internally that fixes it to one performance envelope for everyone?
2012-04-20T22:54:09 < Laurenceb_> the linear tech adcs have internal antialisaing filters
2012-04-20T22:54:15 < Laurenceb_> i thought itd be like that
2012-04-20T22:54:23 < Laurenceb_> but i guess they ran out of silicon
2012-04-20T22:55:22 < Thorn> do those filters adjust their cutoff freq automatically to 1/2 sampling rate?
2012-04-20T22:55:27 < emeb> You don't want anti-aliasing filters in all situations
2012-04-20T22:55:35 <+izua_> you could just oversample in software
2012-04-20T22:56:20 < Laurenceb_> Thorn: no
2012-04-20T22:56:36 < Laurenceb_> you configure the filter
2012-04-20T22:57:15 < Laurenceb_> izua_: yeah thats what im going to do
2012-04-20T22:57:37 < Laurenceb_> ill have an order of magnitude improvement in snr
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2012-04-20T22:58:58 < emeb> That's a lot of oversampling.
2012-04-20T23:00:12 < Laurenceb_>  :P
2012-04-20T23:00:40 < Laurenceb_> SNR will now be 10^5
2012-04-20T23:01:18 < Laurenceb_> hopefully i can hit 10^6 with some clever filtering
2012-04-20T23:01:27 < Laurenceb_> - measuring absorbiton coefficient
2012-04-20T23:02:25 < Laurenceb_> unfortunately LED efficiency drifts all over the place :(
2012-04-20T23:28:28 < cjbaird> ... ... still compiling
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--- Day changed Sat Apr 21 2012
2012-04-21T00:16:24 < Laurenceb_> is there a value of a so that sin(a*n) integer approximation works well with a small number of bits?
2012-04-21T00:16:31 < Laurenceb_> where n is an integer
2012-04-21T00:17:04 < Thorn> 0
2012-04-21T00:18:33 <+izua_> 0 bottles of beer on the wall, 0 bottles of beer, you take one down, pass it around, 65535 bottles of beer on the wall
2012-04-21T00:18:35 < Laurenceb_> lol
2012-04-21T00:19:48 < Laurenceb_> obviously 90 degrees /  pi/2 works well
2012-04-21T00:19:55 < Laurenceb_> but are there any smaller values?
2012-04-21T00:27:16 < dongs> laurenceb surely means laurenceBLOG
2012-04-21T00:27:17 < dongs> amirite.
2012-04-21T00:29:59 <+Steffann> Only in Trollville
2012-04-21T00:30:41 <+izua_> it could stand for launcerandom
2012-04-21T00:31:19 -!- Steffann is now known as Steffanx
2012-04-21T00:37:44 < Laurenceb_> i guess steps of pi/32 with +-16 levels or 5 bits works ok
2012-04-21T00:37:52 <+Steffanx> Don't guess
2012-04-21T00:38:45 < dongs> ur a pi
2012-04-21T00:40:00 <+Steffanx> rpi!
2012-04-21T00:40:08 <+Steffanx> dongs favorite device
2012-04-21T00:40:22 < dongs> hypeberry
2012-04-21T00:40:34 <+Steffanx> even linus likes it
2012-04-21T00:40:52 < dongs> since when does anything linus does is relevant or even makes sense?
2012-04-21T00:41:12 <+Steffanx> linus is your hero
2012-04-21T00:42:18 < cjbaird> ... ... still compiling
2012-04-21T00:43:06 < cjbaird> sin(x) ~= 1/x for small x?  (So in your care, 1/a*x)
2012-04-21T00:43:19 < cjbaird> err. sin(x) ~= x
2012-04-21T00:43:23 < Thorn> sin(x)~x
2012-04-21T00:43:41 < dongs> that sounds like arduino way of computing sin()
2012-04-21T00:44:01 <+Steffanx> doesn't arduino just use avr-libc?
2012-04-21T00:44:03 < cjbaird> Pretend you're a Mathematician
2012-04-21T00:44:55 < cjbaird> There's a few times you can get away with the approximentation in Math proofs.. Used it as a Physics undergrad, too..
2012-04-21T00:50:17 < Laurenceb_> i think i can make this work
2012-04-21T00:50:30 < Laurenceb_> lots of crazy integer maths to speed things up
2012-04-21T00:50:50 <+Steffanx> run it from ram, run it from ram
2012-04-21T00:50:56 < Laurenceb_> need to extract 3 carriers from a 1Msps signal
2012-04-21T00:51:06 < Laurenceb_> no i dont need that much of a speedup
2012-04-21T00:52:32 < cjbaird> Not using a FIR?
2012-04-21T00:53:03 < Laurenceb_> yes
2012-04-21T00:53:08 < Laurenceb_> in another thread
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2012-04-21T01:00:39 < emeb> what are the frequencies of the carriers in the 1Msps data?
2012-04-21T01:03:06 < dongs> shoulda done in on F4
2012-04-21T01:05:18 < Laurenceb_> ~11KHz
2012-04-21T01:05:24 < Thorn> no, stratix iv
2012-04-21T01:10:42 < Laurenceb_> or vertex5
2012-04-21T01:11:09 < emeb> Meh. No need for such beasts. Could easily demodulate 11kHz w/ a Spartan.
2012-04-21T01:12:11 < Laurenceb_> lol
2012-04-21T01:13:35 < dongs> just install lunix. problem solved
2012-04-21T01:17:20 -!- izua_ [~izua@unaffiliated/izua] has quit [Ping timeout: 260 seconds]
2012-04-21T01:17:33 < Laurenceb_> dongs: http://www.rcgroups.com/forums/showthread.php?t=1473207&page=103
2012-04-21T01:17:43 < Laurenceb_> so the ardutard guys have owned tom66
2012-04-21T01:20:10 < dongs> ya old news
2012-04-21T01:21:03 < dongs> dualcore PIC24 in 2012? the fuck was he thinking?
2012-04-21T01:21:09 < dongs> o, wait, he started it in 2010
2012-04-21T01:21:18 < dongs> .. even then
2012-04-21T01:21:27 < Laurenceb_> those guys are going pretty high
2012-04-21T01:21:32 < Laurenceb_> impressive
2012-04-21T01:21:46 < dongs> you mean altitude?
2012-04-21T01:21:57 < Laurenceb_> yes
2012-04-21T01:22:01 < Laurenceb_> or weed
2012-04-21T01:22:08 < Laurenceb_> probably both
2012-04-21T01:22:11 < dongs> lool
2012-04-21T01:22:19 < dongs> yea i was checking which one.
2012-04-21T01:23:46 < dongs> you'd have to be pretty high to do anything serious wiht tarduino
2012-04-21T01:25:32 < Laurenceb_> http://www.rcgroups.com/forums/showthread.php?t=1473207&page=28
2012-04-21T01:25:34 < Laurenceb_> quite neat
2012-04-21T01:25:40 < Laurenceb_> i read that as milfboy
2012-04-21T01:25:54 < dongs> is that mrfliboy?
2012-04-21T01:26:01 < dongs> ya ok
2012-04-21T01:26:23 < dongs> anyhow OSD up in the air is retarded.
2012-04-21T01:26:32 < dongs> send telemetry down via audio/VBI/wahtever
2012-04-21T01:26:34 < dongs> and decode on teh gruond.
2012-04-21T01:27:27 < Laurenceb_> indeed
2012-04-21T01:27:36 < Laurenceb_> and so is reading rcg rather than ding work
2012-04-21T01:27:39 < Laurenceb_> *doing
2012-04-21T01:27:45 < dongs> of course.
2012-04-21T01:29:38 < Laurenceb_> integer maths bores me
2012-04-21T01:29:45 < Laurenceb_> need to count bits everywhere
2012-04-21T01:32:00 < emeb> fixed point is my life.
2012-04-21T01:33:22 < Laurenceb_> you life must be boring
2012-04-21T01:34:17 < dongs> he's an AVR pro
2012-04-21T01:34:26 < emeb> Not hardly.
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2012-04-21T02:03:54 < Laurenceb_> why does the datasheet say 800Ksps @ 72MHz?
2012-04-21T02:04:02 < Laurenceb_> 72/6=12mhz
2012-04-21T02:04:15 < Laurenceb_> 12/14=857KHz
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2012-04-21T02:11:03 < Laurenceb_> guess they must be approximating
2012-04-21T02:11:07 < Laurenceb_> bbl
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2012-04-21T02:31:20 < cjbaird> ... ... still compiling
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2012-04-21T02:37:48 < dongs> are you compiling KDE on the AVR ARM emulator?
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2012-04-21T02:51:32 < dongs> http://microcontrollershop.com/product_info.php?cPath=110_159_439_474&products_id=3039 entry-level teledildonics with tarduino
2012-04-21T02:51:47 < zyp> haha
2012-04-21T02:52:44 < dongs> those guys are pretty good though, my previous order is already shipped. so it should be in alaska in a couple days.
2012-04-21T02:53:05 < zyp> not bad
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2012-04-21T03:32:30 < cjbaird> ... ... still compiling ... wait, it's finished
2012-04-21T03:41:00 < cjbaird> too many signed/unsigned bugs in stlink to bother looking at now..
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2012-04-21T13:16:29 < dongs> woohoo
2012-04-21T13:16:31 < dongs> back on GOODNETS
2012-04-21T13:16:47 <+Steffanx> And what's GOODNETS?
2012-04-21T13:17:32 < dongs> i can type and see it at same time
2012-04-21T13:18:03  * Steffanx doesn't understand dongs :P
2012-04-21T13:29:21 <+izua> it's what links bridges together
2012-04-21T13:29:31 <+izua> think of it as trollnet, inc
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2012-04-21T14:22:19 < Laurenceb_> does 1.4LSB RMS noise on the ADC sound about right?
2012-04-21T14:22:23 < Laurenceb_> at 12MHz clk
2012-04-21T14:23:21 < Laurenceb_> cuz thats what im seeing atm
2012-04-21T14:25:25 <+dekar> izua, http://dl.dropbox.com/u/28467113/gnu_radio.png
2012-04-21T14:25:45 <+izua> you got the tv receiver?
2012-04-21T14:25:51 < Laurenceb_> ive got one
2012-04-21T14:25:56 < Laurenceb_> havent had time to try it yet
2012-04-21T14:26:06 < Laurenceb_> was going to use for high altitude ballooning
2012-04-21T14:26:12 <+dekar> neat
2012-04-21T14:26:22 <+dekar> building the stuff on OSX was horrific
2012-04-21T14:26:33 < Laurenceb_> heh
2012-04-21T14:26:44 < Laurenceb_> atm i use an arduino + chipcon cc1020 based sdr
2012-04-21T14:26:46 <+dekar> the rtl-sdr source block isn't even supposed to be used on OSX I think
2012-04-21T14:26:46 < Laurenceb_> dont laugh
2012-04-21T14:27:19 <+dekar> well I don't know the cc1020 - I am totally new to SDR :)
2012-04-21T14:27:19 < Laurenceb_> that looks awesome
2012-04-21T14:27:44 < Laurenceb_> does it have a JACK server?
2012-04-21T14:27:56 <+dekar> I did compile JACK support on OSX, yeah
2012-04-21T14:28:27 <+Steffanx> So what's the plan dekar ?
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2012-04-21T14:28:37 < Laurenceb_> cool
2012-04-21T14:28:42 <+dekar> dunno, play with it :)
2012-04-21T14:28:56 <+dekar> Steffanx, steal your text messages :D
2012-04-21T14:28:59 <+Steffanx> Which receiver thingy do you use/
2012-04-21T14:29:00 < Laurenceb_> i used JACK and xml-rpc to interface my cc1020 project with fl-digi/dl-lf-digi
2012-04-21T14:29:10 < Laurenceb_> that was nice
2012-04-21T14:29:49 <+dekar> Laurenceb_, oh - I am not using JACK, I compiled some source block that contains a libusb driver for that device
2012-04-21T14:29:55 < Laurenceb_> so it can do digital modes with a consistent gui
2012-04-21T14:30:09 <+dekar> it's all gnu radio for me
2012-04-21T14:30:21 <+dekar> I can tune, adjust gain etc from within the gui
2012-04-21T14:30:43 <+dekar> but I do get weird I2C bugs from time to time, dunno if you get those on Linux/Windows
2012-04-21T14:30:47 <+izua> that's epic
2012-04-21T14:31:01 <+dekar> the tuner speaks I2C
2012-04-21T14:31:03 < Laurenceb_> theres probably some python module you could hack
2012-04-21T14:31:13 < Laurenceb_> to get xml-rpc
2012-04-21T14:31:34 <+izua> what are those at 98.7 and 99.1? TV channels?
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2012-04-21T14:31:44 <+dekar> izua, all radio
2012-04-21T14:31:46 < Laurenceb_> FM radio
2012-04-21T14:31:53 <+dekar> yeah FM
2012-04-21T14:31:55 <+izua> MH=z
2012-04-21T14:31:56 <+izua> oh yeah
2012-04-21T14:31:56 <+dekar> http://svn.spench.net/main/gr-baz/lib/baz_rtl_source_c.cc
2012-04-21T14:32:00  * Laurenceb_ fails izua on ham test
2012-04-21T14:32:07 <+izua> i suck at radio stuff
2012-04-21T14:32:08 <+izua> :P
2012-04-21T14:32:10 <+dekar> that's the block I am using
2012-04-21T14:32:24 <+izua> dekar
2012-04-21T14:32:31 <+izua> can you push it up to 300?
2012-04-21T14:32:36 < Laurenceb_> its not too complex
2012-04-21T14:32:42 <+izua> i have some 10W portable stations
2012-04-21T14:32:47 <+izua> i can send out some olivia messages for you
2012-04-21T14:32:49 < Laurenceb_> i guess you could put together some custom c code to do everything
2012-04-21T14:32:57 <+dekar> izua, 300? sure - it goes up to 1700 and some say even higher
2012-04-21T14:32:58 <+izua> s/stations/radios
2012-04-21T14:33:19 <+dekar> but I cbf decoding those :P
2012-04-21T14:33:24 <+izua> kk
2012-04-21T14:33:24 < Laurenceb_> how far apart are you guys?
2012-04-21T14:33:33 <+dekar> a few hundred km
2012-04-21T14:33:34 <+izua> you don't have to
2012-04-21T14:33:41 <+izua> there's software to do it already
2012-04-21T14:33:48 <+izua> i think about 2M
2012-04-21T14:33:53 < Laurenceb_> we've had 900Km or so with 10mw from balloons
2012-04-21T14:34:01 <+Steffanx> 10km up in the air?
2012-04-21T14:34:11 <+Steffanx> sky
2012-04-21T14:34:23 < Laurenceb_> yes
2012-04-21T14:35:30 <+Steffanx> Can you also listen to the radio streams with it dekar ?
2012-04-21T14:35:32 <+izua> i recall the 2832u chip
2012-04-21T14:35:42 <+izua> what's the dongle's exact name?
2012-04-21T14:35:47 <+izua> also do you use any aerials or filters?
2012-04-21T14:35:51 <+dekar> Steffanx, I am listening to FM radio right now
2012-04-21T14:35:51 <+Steffanx> using that gnu radio app?
2012-04-21T14:36:01 <+dekar> hama nano is my dongle
2012-04-21T14:36:05 <+dekar> Steffanx, yeah
2012-04-21T14:36:11 <+Steffanx> :)
2012-04-21T14:36:24 <+dekar> it has some ready to use FM demodulator block
2012-04-21T14:36:25 <+izua> we should totally do this when i get home
2012-04-21T14:36:34 <+dekar> I stole the parameters from google and it works fine :)
2012-04-21T14:36:36 <+izua> i think 10W is more than enough for olivia
2012-04-21T14:36:48 <+dekar> izua, I have no proper antenna, plan to get one though
2012-04-21T14:36:50 <+izua> or even some crappier protocol, like psk31
2012-04-21T14:36:52  * Laurenceb_ wishes he didnt have a million other projects to complete
2012-04-21T14:36:54 <+izua> me neither
2012-04-21T14:37:07 <+dekar> izua, mine is some TV antenna XD
2012-04-21T14:37:18 <+izua> just the ones on the actual trxers
2012-04-21T14:37:35 <+izua> try the HAM bands
2012-04-21T14:37:35 <+dekar> oh, I wonder whether I can hook it up to satellite, we have sat in our house - never used that
2012-04-21T14:37:41 <+izua> see if you can pick up any chatter
2012-04-21T14:37:43 <+dekar> what are the sat frequencies?
2012-04-21T14:38:30 <+dekar> isn't there FM on sat as well?
2012-04-21T14:38:52 <+izua> there's sat radio, but it's digital, not fm
2012-04-21T14:39:08 <+dekar> oh :/
2012-04-21T14:39:11 <+dekar> so sad
2012-04-21T14:39:26 <+izua> dude
2012-04-21T14:39:26 <+izua> dude
2012-04-21T14:39:27 < Laurenceb_> is it encripted?
2012-04-21T14:39:30 <+izua> put it in the ham bands!
2012-04-21T14:40:09 <+Steffanx> You as englishman should know it's "encrypted" Laurenceb_ :P
2012-04-21T14:40:18 < Laurenceb_> lol
2012-04-21T14:40:43 < Thorn> I received 4 nRF24L01+ modules today
2012-04-21T14:41:02 <+dekar> Thorn, whatever those are
2012-04-21T14:41:09 <+izua> heh
2012-04-21T14:41:12 <+izua> nuymbers stations
2012-04-21T14:41:14 <+izua> which reminds me
2012-04-21T14:41:23 <+izua> what happend with uvb-76?
2012-04-21T14:42:45 < Thorn> http://www.nordicsemi.com/kor/Products/2.4GHz-RF/nRF24L01P
2012-04-21T14:44:30 <+izua> dekar: how much was the dongle?
2012-04-21T14:46:36 <+dekar> izua, 22€ I think
2012-04-21T14:48:18 < Laurenceb_> you can use the cc1020 as an 8 bit sdr
2012-04-21T14:48:43 <+izua> http://www.hama.de/portal/picType*abb/action*2599/articleId*179025
2012-04-21T14:48:45 <+izua> this one?
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2012-04-21T14:52:35 <+dekar> izua, yeah
2012-04-21T14:56:08 <+Steffanx> "<dekar> Steffanx, steal your text messages :D"
2012-04-21T14:56:16 <+Steffanx> Good luck with that btw
2012-04-21T14:56:32  * Steffanx doesn't send text messages very often
2012-04-21T14:57:07 <+Steffanx> What's the lowest freq. dekar ?
2012-04-21T14:57:16 <+Steffanx> the lowest it can receive
2012-04-21T14:58:11 <+dekar> Steffanx, 48mhz I think
2012-04-21T14:58:21 <+dekar> sadly no RFID for me
2012-04-21T14:58:23 < Laurenceb_> oh yeah
2012-04-21T14:58:36 < Laurenceb_> sms is unencrypted
2012-04-21T14:58:45 <+dekar> Laurenceb_, GSM is broken
2012-04-21T14:58:54 <+izua> but it works
2012-04-21T14:58:55 <+dekar> you can decrypt that
2012-04-21T14:58:55 <+Steffanx> Part of GMS .. isn't it?
2012-04-21T14:59:01 <+izua> so why change it
2012-04-21T14:59:08 < Laurenceb_> does the GSM control channel change frequency?
2012-04-21T14:59:11 <+Steffanx> The 'newer' standard isn't broken is it?
2012-04-21T14:59:20 <+dekar> 3g is secure yeah
2012-04-21T14:59:21 <+Steffanx> The 'newer' standard that isn't used much
2012-04-21T14:59:37 <+dekar> http://dl.dropbox.com/u/28467113/fm_recording.wav
2012-04-21T14:59:40 <+Steffanx> Or not by all providers at least
2012-04-21T14:59:42 < Laurenceb_> if not you could tune into the control channel on your cell
2012-04-21T14:59:47 < Laurenceb_> and grab all texts
2012-04-21T14:59:56 <+Steffanx> WTF dekar ?
2012-04-21T15:00:44 <+dekar> lol I just realized you can see FM channels switch between stereo and mono - you can visually see that in the waterfall graph :)
2012-04-21T15:00:45 <+izua> shouldn't your radio have more german in it?
2012-04-21T15:00:58 <+dekar> izua, american force network :P
2012-04-21T15:01:01 <+Steffanx> Yay
2012-04-21T15:01:07 <+izua> it's an extra carrier at 38k iirc
2012-04-21T15:01:12 <+izua> also.. you might be seeing RDS data :D
2012-04-21T15:01:17 < Laurenceb_> force network O_o
2012-04-21T15:01:30 <+dekar> it's for US soldiers in Germany
2012-04-21T15:01:34 <+izua> oh yeah
2012-04-21T15:01:48 <+izua> there was something about soldiers getting their vechicles mugged
2012-04-21T15:02:04 <+izua> AFRTS
2012-04-21T15:02:11 <+izua> (AFRTS, commonly pronounced "A-farts")
2012-04-21T15:03:58 <+Steffanx> So for now it's just a fancy way of receiving FM :P
2012-04-21T15:04:09 <+Steffanx> radio
2012-04-21T15:04:21 <+izua> he could just tune in the ham bands ._.
2012-04-21T15:04:28 <+izua> or emergenc y/dispatch stuff
2012-04-21T15:05:39 <+dekar> is HAM FM as well?
2012-04-21T15:05:59 <+Steffanx> You can't do AM?
2012-04-21T15:06:07 <+dekar> I guess AM should be even easier
2012-04-21T15:06:14 <+dekar> but I am glad my FM works for now XD
2012-04-21T15:06:43 <+izua> isn't it up to the software?
2012-04-21T15:06:59 <+izua> or does the receiver force FM?
2012-04-21T15:07:32 <+dekar> http://dl.dropbox.com/u/28467113/gnu_radio_2.png
2012-04-21T15:07:34 <+Steffanx> dekar pushed his changed to github yet? :P
2012-04-21T15:07:39 <+dekar> no, it's all software
2012-04-21T15:07:39 <+Steffanx> *changes
2012-04-21T15:07:44 <+izua> (ie, does it spit out demodulated samples, or raw spectrum ?)
2012-04-21T15:07:56 <+dekar> Steffanx, no changes, I hacked makefiles automate generated and stuff like that
2012-04-21T15:07:57 <+Steffanx> Or didn't you change anything in the source?
2012-04-21T15:07:59 <+Steffanx> Ah
2012-04-21T15:08:05 <+izua> ah
2012-04-21T15:08:14 <+dekar> *automake and cmake
2012-04-21T15:08:14 <+izua> neat
2012-04-21T15:08:26 <+izua> do you hear anything on the local 433 stuff?
2012-04-21T15:08:32 <+izua> baby monitors, garage doors, crap like that?
2012-04-21T15:08:39 <+Steffanx> Bbbzzzz krkrkkrkrkkr bbzzz krkrkrkr :P
2012-04-21T15:08:55 <+izua> that could also be a broken garage door :D
2012-04-21T15:09:10 <+Steffanx> Or a wireless weather station thingy?
2012-04-21T15:09:17 <+izua> or a broken baby!
2012-04-21T15:09:36 <+izua> olivia sounds nice though
2012-04-21T15:09:37 <+izua> https://en.wikipedia.org/wiki/Olivia_MFSK
2012-04-21T15:09:37 <+dekar> I tuned in to some signal on 433.8 mhz using my FM decoder and I hear clicking/crackling
2012-04-21T15:09:57 <+izua> (there are some demos at the end of the page)
2012-04-21T15:10:34 <+izua> hm, frequency hopping?
2012-04-21T15:10:39 <+dekar> but it seems like my TV antenna is fine for weird bands it was never meant to be used for :)
2012-04-21T15:11:01 <+dekar> izua, no frequency hopping, I would see that - more like short peaks
2012-04-21T15:11:09 <+dekar> few times per second
2012-04-21T15:11:23 <+izua> frequency hopping usually goes in the kHz range
2012-04-21T15:11:39 <+izua> or it could be some other funky spread spectrum technique
2012-04-21T15:11:58 <+izua> or maybe.. it's a numbers station!
2012-04-21T15:12:03 <+izua> speaking of which, can you hear UVB76?
2012-04-21T15:12:08 <+dekar> nah, pretty isolated to 433.8mhz
2012-04-21T15:12:11 <+izua> it's 46.25MHz, iirc
2012-04-21T15:13:02 <+Steffanx> Your fm decoder?
2012-04-21T15:15:26 <+dekar> Steffanx, the FM demodulator->audio-sink
2012-04-21T15:15:43 <+Steffanx> Isn't it just a drag and drop thiny?
2012-04-21T15:15:48 <+dekar> yeah
2012-04-21T15:15:49 <+Steffanx> :P
2012-04-21T15:15:58 <+Steffanx> So it's not YOUR fm decoder :P
2012-04-21T15:16:06 <+dekar> it has many weird parameters though
2012-04-21T15:16:20 <+izua> like what?
2012-04-21T15:16:29 <+dekar> but yeah I stole the settings from somewhere anyway
2012-04-21T15:16:42 <+dekar> izua, http://dl.dropbox.com/u/28467113/gnu_radio_2.png
2012-04-21T15:16:54 <+izua> ah, those
2012-04-21T15:18:37 <+dekar> what's Deviation or Tau?
2012-04-21T15:18:58 <+izua> https://en.wikipedia.org/wiki/File:OLIVIA_500_16_sample.ogg
2012-04-21T15:19:22 <+Steffanx> Waow
2012-04-21T15:19:24 <+Steffanx> izua
2012-04-21T15:19:56 <+izua> uh, the deviation in fm is the difference between the current (instant) frequency and what's the base one you "tune" to
2012-04-21T15:20:15 <+izua> tau.. it's.. something.. i don't quite remember
2012-04-21T15:20:36 <+Steffanx> tua is many things :)
2012-04-21T15:20:43 <+Steffanx> tau
2012-04-21T15:20:55 <+izua> i think tau is the instantaneous frequency
2012-04-21T15:21:11 <+izua> Steffanx: told you olivia sounds nice :D
2012-04-21T15:21:22 <+Steffanx> Is that data, or what is it izua ?
2012-04-21T15:21:31 <+izua> yeah
2012-04-21T15:21:52 <+izua> it's a technique developped by a ham guy
2012-04-21T15:22:09 <+izua> it can do a few thousand kms with as few as 5W, iirc.
2012-04-21T15:22:26 <+izua> 3db under the noise floor, and it's kicking :D
2012-04-21T15:22:38 <+izua> ofc, at the cost of horrible data rate, 3 baud or such
2012-04-21T15:26:03 <+dekar> http://www.oz9aec.net/index.php/gnu-radio/grc-examples
2012-04-21T15:26:08 <+dekar> those I need
2012-04-21T15:26:46 <+izua> you know
2012-04-21T15:26:47 <+izua> technically
2012-04-21T15:27:07 <+izua> if you'd get two 90 deg out of phase carriers
2012-04-21T15:27:29 <+izua> like, the output of two PWM generators, you could do your own I/Q demodulation stuff
2012-04-21T15:27:52 <+izua> there's some talk on avrfreaks about making a DCF77 (mostly) in software
2012-04-21T15:28:01 <+izua> dcf77 receiver
2012-04-21T15:30:56 <+Steffanx> isn't that how it's often done?
2012-04-21T15:31:43 <+izua> i think so.
2012-04-21T15:32:08 <+izua> i'm not sure what this radio black magic is
2012-04-21T15:33:21 < Laurenceb_> izua: yeah
2012-04-21T15:33:28 < Laurenceb_> i have one half built on breadboard
2012-04-21T15:33:37 < Laurenceb_> from a year ago, then i got bored :(
2012-04-21T15:33:38 <+Steffanx> breadboard :P
2012-04-21T15:33:45 <+izua> the I?Q decoder?
2012-04-21T15:33:51 < Laurenceb_> yes, with xtal filter
2012-04-21T15:33:57 < Laurenceb_> i orders some matched filters
2012-04-21T15:34:09 < Laurenceb_> but yeah i should make one with an stm32
2012-04-21T15:34:22 < Laurenceb_> then i could simplify the design
2012-04-21T15:34:23 <+izua> did you get it remotely close to powered up?
2012-04-21T15:34:27 < Laurenceb_> no lol
2012-04-21T15:34:33 <+izua> like at least seeing some pulses out of the filters or something
2012-04-21T15:34:34 <+izua> ah
2012-04-21T15:34:34 <+izua> neat
2012-04-21T15:34:41 <+izua> i have a box for those kind of projects
2012-04-21T15:34:46 <+izua> i call it "my house"
2012-04-21T15:34:49 < Laurenceb_> i wanted to frequency lock my cc1020 receiver
2012-04-21T15:34:51 < Laurenceb_> heh
2012-04-21T15:35:12 <+izua> yeah i think a sdr thingie on stm32 might be neat
2012-04-21T15:35:29 < Laurenceb_> you can sample at a decent rate
2012-04-21T15:35:30 <+izua> esp with the F4 that can do > 100 MHz
2012-04-21T15:35:54 <+izua> i was thinking more like 'hardware' modulation-demodulation
2012-04-21T15:36:00 < Laurenceb_> yeah
2012-04-21T15:36:32 <+izua> some hikers i know had this idea of sticking some weather/trailmarkers in some remote areas
2012-04-21T15:37:08 <+izua> and some weird HAM mode would be neat for that sort of data collection purpose
2012-04-21T15:37:35 < Laurenceb_> i was thinking of using high altitude balloons for passive synthetic aperture radar
2012-04-21T15:37:48 < Laurenceb_> but you get shot for making stuff like that :P
2012-04-21T15:38:00 <+izua> but the closest they got to it was sending out ascii text to eachother through some portable motorolas :P
2012-04-21T15:38:01 <+izua> lol
2012-04-21T15:38:05 <+izua> i have no idea what that is
2012-04-21T15:38:33 <+izua> if you have an aperture.. you get more focus? :D
2012-04-21T15:38:38 < Laurenceb_> sort of
2012-04-21T15:38:53 < Laurenceb_> you detect reflected FM radio etc off the targets
2012-04-21T15:39:22 <+izua> ah
2012-04-21T15:39:32 < Laurenceb_> so its invisible and cheap
2012-04-21T15:39:45 <+izua> has a fancy name though :P
2012-04-21T15:39:50 < Laurenceb_> poor mans undetectable air defence
2012-04-21T15:40:39 <+izua> 1/10e^6 resolution say wikipedia
2012-04-21T15:40:47 <+izua> dude that's epic
2012-04-21T15:43:00 <+izua> https://upload.wikimedia.org/wikipedia/commons/2/20/Death-valley-sar.jpg
2012-04-21T15:43:09  * Laurenceb_ gets blown up by mossad
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2012-04-21T19:11:16 <+jpa-> what is the cortex-m3 eventout pin used for?
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2012-04-21T19:37:25 < emeb> Good question!
2012-04-21T19:37:43 <+dekar> http://dl.dropbox.com/u/28467113/fm_recording2.wav
2012-04-21T19:37:50 <+dekar> does anyone hear a high pitched noise?
2012-04-21T19:39:44 < emeb> jpa-: Looks like eventout is a signal from the CPU core that is generated by the SEV instruction: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0552a/CHDJIEAG.html
2012-04-21T19:39:48 < zyp> dekar, yes
2012-04-21T19:56:53 <+Steffanx> Same here dekar
2012-04-21T19:57:52 <+jpa-> emeb: hmm, i wonder why it is so important that it is available on every pin on STM32L151
2012-04-21T19:58:21 <+jpa-> can't be that common to build multiprocessor stm32 systems :)
2012-04-21T19:58:23 < emeb> jpa-: yeah - so important, but not really documented anywhere.
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2012-04-21T19:59:57 < cjbaird> On the F4Discovery, USART1 tx/rx is PA9 & PA10, correct?
2012-04-21T20:00:44 <+Steffanx> me opens datasheet
2012-04-21T20:01:15 <+Steffanx> Correct
2012-04-21T20:02:03 <+Steffanx> hmm,
2012-04-21T20:04:05 < cjbaird> I wonder if I've got a dead BusPirate... :/
2012-04-21T20:04:07 <+Steffanx> but it also seems to be on PB6 and 7
2012-04-21T20:05:32 <+Steffanx> "The USART1 and USART6 interfaces are able to
2012-04-21T20:05:32 <+Steffanx> communicate at speeds of up to 10.5 Mbit/s. The other available interfaces communicate at up to 5.25 bit/s."
2012-04-21T20:05:39 <+Steffanx> 5.25 bit/s :D :D
2012-04-21T20:13:46 <+Steffanx> cjbaird didn't forget the alternate function stuff?
2012-04-21T20:17:56 < cjbaird> At the moment I'm just trying to get the example code from various github stm32f4 projects to work. Just a "Hello World" would be good at this point.
2012-04-21T20:18:49 < cjbaird> So far the one success has been building a port of the Demonstration ...which only flashes the leds according to MEMS.
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2012-04-21T21:07:37 < cjbaird> Great, now it seems my logic probe is farked as well.
2012-04-21T21:27:56 < cjbaird> 5 hours of shit not working is enough...
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2012-04-21T22:03:30 < cjbaird> ...and so he took some code specifically for the F4D, managed to get it to build, flashed it in, grovelled in gdb to check it was actually there, starting running the code, checked again with gdb that everything was right, then went over every single pin on the board with an oscilloscape to find where the serial output was being sent too... nothing. :/
2012-04-21T22:04:07 < cjbaird> msp430's aren't this shitty. -_-
2012-04-21T22:06:41 <+Steffanx> neither is stm32
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2012-04-21T22:31:15 < Laurenceb_> <troll> YOU ARE </troll>
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2012-04-21T22:37:55 <+Steffanx> Laurenceb_ is?
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2012-04-21T23:17:50 < cjbaird> omg, finally got serial working after 7 hours. \(^ ^)/
2012-04-21T23:18:11 <+Steffanx> And what was it?
2012-04-21T23:18:25  * cjbaird mantouches the libopencm3 developers
2012-04-21T23:18:49 < cjbaird> Code that worked, and phase-of-moon stuff.
2012-04-21T23:19:19 <+Steffanx> oh :)
2012-04-21T23:19:34 <+Steffanx> Thank gsmcmullin for the libopencm3 :P
2012-04-21T23:39:20 < cjbaird> stlink is nostalgic -- it reminds me of a VIC20 datacassette :P :)
2012-04-21T23:49:21 < Laurenceb_> muha done it
2012-04-21T23:49:45 < Laurenceb_> worked out how to remap and use all 4 timers, 2uarts, 1 spi and one i2c on 48 pin device
2012-04-21T23:49:54 < Laurenceb_> this took way too long
2012-04-21T23:51:16 < Laurenceb_> -thought i had this working on a previous board revision but didnt notice the errata about B.5 and the SMBA signal
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--- Day changed Sun Apr 22 2012
2012-04-22T00:00:04 < zyp> did you read the errata this time then? :p
2012-04-22T00:04:54 < Laurenceb_> hmm maybe the IWDG issue (section 2.15.1 in f103 errata) explains my SWD issue when using IWDG
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2012-04-22T00:31:17 <+Steffanx> Maybe
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2012-04-22T01:38:53 < cjbaird> stm32 day #3 goal: mandelbrots
2012-04-22T01:42:35 <+izua> on leds!
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2012-04-22T02:53:20 < Tectu> lol!
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2012-04-22T04:45:07 < dongs> DONGS
2012-04-22T04:45:20 < dongs> cjbaird: i did that
2012-04-22T04:46:06 < dongs> doh i never posted a video of it
2012-04-22T04:46:07 < dongs> wtf
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2012-04-22T04:48:45 < cjbaird> dongs: you're the one with the funky rgb LED display? DO EET
2012-04-22T04:56:25 < dongs> http://www.youtube.com/watch?v=YgNSv0PYDNM this?
2012-04-22T04:56:52 < dongs> anyway, i have the code but its made for some chink SPI LCD
2012-04-22T04:56:55 < dongs> might be of low use to you
2012-04-22T04:57:00 < dongs> (mandelbrot code that is)
2012-04-22T04:57:14 < dongs> but its for F4... (though using stdlib and crossworks as IDE).
2012-04-22T04:57:19 < dongs> so probably of very little use to you
2012-04-22T04:58:15 < zyp> this talk about mandelbrots made me realize I had never written a renderer for that, and I was bored, so I hacked one up in GLSL
2012-04-22T04:58:53 < dongs> i bet you used python and some other crap to do it with
2012-04-22T04:59:03 < zyp> just other crap
2012-04-22T04:59:29 < dongs> rubyonfales
2012-04-22T05:00:19 < zyp> nah, some shader tester stuff that have some default setup that just shows the effect of the shader
2012-04-22T05:00:43 < zyp> so I just wrote the GLSL itself
2012-04-22T05:01:02 < dongs> oic
2012-04-22T05:01:34 < dongs> considering how Direct3D mode of my PCB cad runs about 2x faster than OpenGL mode, I:d have to conclude opengl is going the way of lunix/BSD and is now fully dead.
2012-04-22T05:02:44 < zyp> sounds like some pretty slow shit if you can even distinguish the difference
2012-04-22T05:03:42 < dongs> not any slower than say "eagle"
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2012-04-22T05:08:26 < cjbaird> Once Upon A Time there were graphics vidya cards that spoke OpenGL natively, I think around the time when Quake3 came out. Microsoft quickly sent out their Ninjas to put an end to that.
2012-04-22T05:11:47 < zyp> dongs, speaking of opengl and python, I also made this today: http://bin.jvnv.net/f/GHc37.png
2012-04-22T05:12:56 < dongs> nice mac.
2012-04-22T05:13:06 < dongs> zyp, how do you fix a mac thats crashing/locking up
2012-04-22T05:13:09 < dongs> format+reinstall?
2012-04-22T05:13:30 <+jpa-> logs + google
2012-04-22T05:13:38 < zyp> I'm tempted to say «buy a new» just to fit the stereotype :p
2012-04-22T05:13:48 < dongs> zyp: thats what the guy is trying to do.
2012-04-22T05:14:16 < cjbaird> Reseat the rams..
2012-04-22T05:14:27 < zyp> I guess it will depend on the reason it's crashing/locking up, as with any computer
2012-04-22T05:15:52 < dongs> how the fuck do you find a reason on a mac
2012-04-22T05:17:06 < zyp> if you hold down cmd-v at boot it will boot in verbose mode
2012-04-22T05:17:09 <+dekar> dongs, how do you find a reason on a PC?
2012-04-22T05:17:23 < dongs> dekar: PCs dont crash
2012-04-22T05:18:15 <+dekar> I know, BSOD is the screen you get once you won windows
2012-04-22T05:18:25 <+dekar> but I rather work than play games
2012-04-22T06:22:05 < dongs> its funny you mention lunix and macos in same sentence with "work"
2012-04-22T06:27:58 <+dekar> dongs, how so?
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2012-04-22T06:52:24 < dongs> haha why is hackkitten in here.
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2012-04-22T06:52:32 < dongs> that dude is a furry
2012-04-22T06:53:07 <+dekar> and why would you know that?
2012-04-22T06:53:17 < dongs> dekar: he admitted to it in another channel
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2012-04-22T07:23:57 < cjbaird> That blows my hope of hackkitten being a 17yo girl using a camwhore nick online..
2012-04-22T07:57:59 < cjbaird> Now why would an attempt to use a float cause libopencm3 to jump into blocking_handler()...?
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2012-04-22T08:01:43 <+jpa-> cjbaird: check SCB->CFSR
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2012-04-22T08:19:04 <+dekar> cjbaird, could be related to the compiler actually - maybe an illegal opcode exception?
2012-04-22T08:23:13 < cjbaird> The instruction executed just before the exception was a "blx     0x8000954 <__muldf3>" ...
2012-04-22T08:24:12 <+jpa-> hmm, shouldn't the lowest bit be 1?
2012-04-22T08:25:29 <+jpa-> make sure you specify -mcpu=cortex-m3 -mthumb everywhere, also for the linker
2012-04-22T08:26:05 <+jpa-> (actually, the lowest bit is apparently 0 in the disassembler listing.. for some reason)
2012-04-22T08:26:06 <+dekar> jpa-, it usually is when jumping to thumb code, isn't it? but idk if that needed given the stm32 doesn't know anything but thumb :/
2012-04-22T08:26:55 <+jpa-> it is needed, but i guess the disassembler does not use that notation (the lowest bit is not encoded in the branch instruction anyway)
2012-04-22T08:30:09 <+jpa-> ah, but cortex-m3 does not have blx with immediate argument anyway
2012-04-22T08:30:19 <+jpa-> so it's definitely compiling for wrong processor
2012-04-22T08:39:38 < cjbaird> Hmm..  -mcpu=cortex-m3 -mthumb, with and without -march=armv7, still generated the blx
2012-04-22T08:40:17 <+jpa-> what do you give to the linker?
2012-04-22T08:41:04 <+jpa-> and, more importantly, is that blx in your own object files or does it come from libgcc?
2012-04-22T08:43:44 < cjbaird> Aha, yep, missing cpu on the linker.
2012-04-22T08:57:09 < cjbaird> Delicious Mandelbrot: http://tinyurl.com/6tkf3op
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2012-04-22T09:50:40 < cjbaird> It'll be good when I've got hard-float: https://imgur.com/SH1YA
2012-04-22T10:01:30 <+jpa-> not like you need floats for it :)
2012-04-22T10:02:05  * hackkitten kicks dongs against the shins
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2012-04-22T12:10:12 <+Steffanx> nu
2012-04-22T12:11:13 <+jpa-> hello steffie
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2012-04-22T22:15:23 < TitanMKD> hi
2012-04-22T22:20:00 < dongs> sup.
2012-04-22T22:22:16 <+Steffanx> Tha sky bro
2012-04-22T22:22:25 < dongs> only in trollville
2012-04-22T22:22:55 <+Steffanx> In Trollville people live on the street?
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2012-04-22T22:37:31 <+izua> in trollive, the bridge is up
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--- Day changed Mon Apr 23 2012
2012-04-23T00:47:30 < emeb> w00t - got table morphing working on my quad audio oscillator.
2012-04-23T00:48:18 < cjbaird> SSHHIIITTTT, my soldering station (that I've had since I was 16) just released its Magic Smoke. :(
2012-04-23T00:48:50 < emeb> Sadness. You wanted a nice new one anyway.
2012-04-23T00:49:38 < dongs> get aoyue 968+
2012-04-23T00:50:03 <+Steffanx> Weller
2012-04-23T00:50:08  * emeb likes his Hako 936
2012-04-23T00:52:03 < Laurenceb_> table morphing?
2012-04-23T00:52:25 < emeb> wavetable oscillators - morphing allows smooth interpolation between tables.
2012-04-23T00:52:59 <+izua> is it more complex than (sample[k+1] + sample[k]) / 2?
2012-04-23T00:55:03 < emeb> a bit. given a morph value g and two table outputs, compute table0*g + table1*(1-g)
2012-04-23T00:56:04 < emeb> g=1 gives you table0 pure, g=0 gives you table1 pure. Anything between 0-1 is a blend.
2012-04-23T00:57:22 <+izua> sounds like a mixer, no pun intended.
2012-04-23T00:58:16 < emeb> Pretty much.
2012-04-23T01:11:19 -!- izua [~izua@unaffiliated/izua] has quit [Ping timeout: 260 seconds]
2012-04-23T01:16:56 < cjbaird> (Why the hell would a new soldering station need a temperature password lock...?)
2012-04-23T01:17:34 < emeb> Production lines where you don't trust individual operators to be smart enough to set their own temperature?
2012-04-23T01:17:36 < zyp> to stop workers from breaking regulations
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2012-04-23T01:18:59 < cjbaird> z: yep, that would be it.
2012-04-23T01:19:02 < emeb> "I can solder so much faster when I crank it to '11'". Then you start getting failures due to overtemp.
2012-04-23T01:20:43 < emeb> Dumb question: what's your favorite tool for downloading code to STM32 flash?
2012-04-23T01:21:14 < emeb> I find I keep having to fall back to STLINK under Win7 to get reliable programming on my STM32F105
2012-04-23T01:21:26 < karlp> what were you  using?
2012-04-23T01:21:42 < emeb> stlink-karlp version of the 'flash' tool.
2012-04-23T01:21:52 < karlp> what's going wrong with it for you?
2012-04-23T01:21:55 < zyp> I recently got a blackmagic probe, and it quickly became my favorite tool
2012-04-23T01:22:00 < karlp> and really? you're using that on windows?
2012-04-23T01:22:12 < Randomskk> blackmagic probe ++
2012-04-23T01:22:16 < Randomskk> that, gdb, make
2012-04-23T01:23:24 < emeb> karlp: I use stlink-karlp flash under linux. It worked fine for a while but lately it gets verification failures.
2012-04-23T01:24:44 < zyp> you haven't worn out the flash? :p
2012-04-23T01:25:08 < emeb> zyp: no - works fine when programmed via STLINK-Util under Win.
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2012-04-23T01:25:30 < zyp> same version of the software?
2012-04-23T01:25:54 < emeb> "the software"? You mean the same binary download? Yes.
2012-04-23T01:27:07 < emeb> I've heard some say that the GDB route is better because the flash tool is not well maintained.
2012-04-23T01:28:08 < zyp> that might be, I've only used gdb myself
2012-04-23T01:29:20 < karlp> I only use gdb myself,
2012-04-23T01:29:38 < emeb> OK - that's a good clue.
2012-04-23T01:30:06 < zyp> no reason to not have gdb ready when you are developing stuff
2012-04-23T01:30:29 < emeb> No arguments with that.
2012-04-23T01:31:08 < emeb> I liked the convenience of having a 1-line command to program from my Makefile though.
2012-04-23T01:31:15 < zyp> I made an alias in gdbinit so I can reload and reflash with a single command, so once gdb is started that's about as easy as running a single seperate command
2012-04-23T01:32:14 < emeb> Does the blackmagic probe only work through gdb?
2012-04-23T01:32:33 < zyp> there are some seperate scripts aswell, but I haven't tried them
2012-04-23T01:34:27 < zyp> http://cgit.jvnv.net/suzumebachi/tree/.gdbinit?h=stm32f4 <- this is the current .gdbinit I'm using
2012-04-23T01:34:51 < zyp> the flash command will reload the elf and flash it
2012-04-23T01:35:03 < zyp> and if I added the run command to that, it would also start executing it
2012-04-23T01:35:04 < emeb> ty
2012-04-23T01:35:31 < emeb> that's for the blackmagic though, based on the JTAG/SWD aliases.
2012-04-23T01:35:43 < zyp> yes
2012-04-23T01:35:52 < emeb> likely something similar would work with stlink
2012-04-23T01:35:58 < karlp> you just leave it out.
2012-04-23T01:36:07 < karlp> I leave st-util running,
2012-04-23T01:36:16 < zyp> emeb, yes, I just updated it from stlink to blackmagic
2012-04-23T01:36:26 < karlp> target extended-remote :4242 and it's good to go
2012-04-23T01:36:41 < zyp> http://cgit.jvnv.net/suzumebachi/tree/.gdbinit?h=stm32f4&id=2a34130 <- here's the one I used for stlink
2012-04-23T01:37:15 < emeb> cool.
2012-04-23T01:38:15 < emeb> wonder if there's a way to tell GDB to start up, attach to the target, load file & program and then exit - all from the .gdbinit file.
2012-04-23T01:38:38 < emeb> then that could be added to the Makefile.
2012-04-23T01:38:57 < karlp> or just fix whatever's wrong with the flash part, if that's the problem :)
2012-04-23T01:39:11 < zyp> emeb, sure
2012-04-23T01:39:13 < emeb> stop being so practical. I'm hacking here!
2012-04-23T01:39:17 < zyp> run it with the -batch flag
2012-04-23T01:39:23 < zyp> check man gdb
2012-04-23T01:39:36 < emeb> zyp: thx
2012-04-23T01:40:03 < emeb> karlp: I have looked at the flash code. Kinda makes sense.
2012-04-23T01:40:10  * Laurenceb_ thick
2012-04-23T01:40:13 < zyp> something like arm-none-eabi-gdb -batch -x flash_cmds.txt should work
2012-04-23T01:40:15 < Laurenceb_> whats a gdbinit?
2012-04-23T01:40:24 < Laurenceb_> hmm that looks nice
2012-04-23T01:40:46 < Laurenceb_> where do you put gdbinit?
2012-04-23T01:40:51 < zyp> Laurenceb_, gdb loads and executes commands from .gdbinit if present in the directory you're running it from
2012-04-23T01:41:09 < Laurenceb_> so that would be my project drictory?
2012-04-23T01:41:11 < zyp> so you can have project specific stuff there
2012-04-23T01:41:17 < emeb> Oho - it's not per user, but by project. Nicer still.
2012-04-23T01:41:24 < Laurenceb_> i see
2012-04-23T01:41:36 < emeb> was afraid that went in ~/
2012-04-23T01:41:38 < zyp> well, it also loads ~/.gdbinit, I have some generic stuff there aswell
2012-04-23T01:41:40 < Laurenceb_> cool ill have to do that - gdb gets very repetitive
2012-04-23T01:42:24 < karlp> that's why people built IDEs
2012-04-23T01:42:27 < Laurenceb_> how do the deinfes work?
2012-04-23T01:42:30 < Laurenceb_> karlp: lol
2012-04-23T01:42:37 < Laurenceb_> *define
2012-04-23T01:42:57 < emeb> karlp: :P
2012-04-23T01:43:01 < zyp> http://paste.jvnv.net/view/pejRB <- this is my ~/.gdbinit, with some C++ STL stuff I found somewhere once, and some other nice stuff at the bottom
2012-04-23T01:43:24 < emeb> *cough*
2012-04-23T01:43:37 < Laurenceb_> so with your gdbinit, would it go something like arm-none-eabi-gdb flash  ?
2012-04-23T01:43:56 < zyp> no, you start gdb, then run the command
2012-04-23T01:44:03 < zyp> hang on, I'll make an example here :p
2012-04-23T01:44:10 < Laurenceb_> i see
2012-04-23T01:44:22 < Laurenceb_> karlp: i have debugging working with DDD
2012-04-23T01:44:40 < zyp> http://paste.jvnv.net/view/4dTO2 <- here, just did this
2012-04-23T01:44:42 < Laurenceb_> couldnt configure nemiver correctly for some reason using texane
2012-04-23T01:45:00 < Laurenceb_> cool thanks
2012-04-23T01:45:25 < Laurenceb_> ill have to have another go with nemiver tomorrow, last tried before chistmas
2012-04-23T01:45:56 < cjbaird>  I could get a Hakko FX888, or a Weller WES51, or the $100 thing from Altronics..
2012-04-23T01:48:13 < zyp> ok, I just tested batch stuff aswell
2012-04-23T01:48:14 < zyp> http://paste.jvnv.net/view/x9zVn
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2012-04-23T01:50:34 < dongs> what happened to using debuggers that arent obsolete
2012-04-23T01:51:10 < zyp> we stopped doing that and started using shit that works instead
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2012-04-23T01:58:42 < emeb> Sadness: http://paste.jvnv.net/view/BkEbw
2012-04-23T01:59:41  * Laurenceb_ zzz
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2012-04-23T01:59:48 < emeb> http://paste.jvnv.net/view/7oeCG
2012-04-23T02:00:04 < emeb> (output from st-util)
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2012-04-23T02:54:02 < emeb> Let's hear it for GCC optimization. Turned the knob from -O1 to -O3 and my spare cycles went from 10% to 40%.
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2012-04-23T02:57:38 < zyp> I believe the most useful optimizations are turned on between -O1 and -O2
2012-04-23T02:58:05 < emeb> I believe that. IIRC, -O3 doesn't buy much more (if any)
2012-04-23T02:58:32 < emeb> Haven't tested it recently though.
2012-04-23T02:59:08 < zyp> in my head, -O1 is the basic stuff, -O2 is the useful stuff and -O3 are the final code space for speed tradeoffs
2012-04-23T02:59:26 < zyp> and -Os is -O2 minus space-eating optimizations
2012-04-23T03:00:49 < emeb> Space is not an issue for me, so -O2 is probably best.
2012-04-23T03:01:07 < emeb> only using 32kB / 128kB in this MCU.
2012-04-23T03:01:42 < emeb> wondering if I should put the CPU to sleep during that 40% though...
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2012-04-23T03:15:50 < emeb> Hmmm -O2 dropped the spare cycles to 20%. -O3 is better in this case.
2012-04-23T03:19:28 < emeb> and adding a WFI prior to the busy wait dropped system current by about 10%. That's virtually free power savings.
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2012-04-23T05:43:21 < dongs> ugh
2012-04-23T05:43:28 < dongs> DMA assignments on f1 suck
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2012-04-23T08:08:30 < dongs>     timer_value = TIM_GetCounter(TIM3);
2012-04-23T08:08:32 < dongs>     TIM_SetCounter(TIM3, 0);
2012-04-23T08:08:38 < dongs> surely thers a better way to do it?
2012-04-23T08:08:45 < dongs> isnt there some mode where it auto-resets on read
2012-04-23T08:08:57 < dongs> (refactoring some other tools code0
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2012-04-23T08:29:21 <+jpa-> dongs: the better way is to read it and subtract the old value
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2012-04-23T09:13:37 < dongs> jpa-: no
2012-04-23T09:13:41 < dongs> thers some autoreset stuff.
2012-04-23T09:43:01 < cjbaird> Ordered a STM32L-Discovery board along with the new soldering station..
2012-04-23T09:46:51 < dongs> what did you get.
2012-04-23T09:48:54 < cjbaird> Just a Weller WES51D, the 'analogue' model.
2012-04-23T09:49:45 < dongs> for basically tsame price ytou could have had hot air and fume extractor with 968.
2012-04-23T09:50:25 < cjbaird> I /like/ the fumes. :P
2012-04-23T09:50:44 < dongs> maybe you drink beer too?
2012-04-23T09:50:55 < cjbaird> I didn't stockpile all that pre-RoHS solder for nuthin'
2012-04-23T09:53:17 < zyp> doesn't the D in WES51D stand for digital?
2012-04-23T09:53:28 < zyp> i.e. woulding the analog variant be WES51?
2012-04-23T09:53:33 < zyp> wouldn't
2012-04-23T09:53:37 < cjbaird> I did go into Sydney today to check out a place that was the only business selling Weller/Hakko/et.al electronics tools over-the-counter... walked out 45 minutes later still not having seen anything more than the HK-888 that was on display because LOL STAFF TOO BUSY YEAH 4 OF US STANDING AROUND. How the fuck that company has stayed in business for 28 years I'd like to know...
2012-04-23T09:53:51 < cjbaird> WESD51D is the Digital model.
2012-04-23T09:54:09 < cjbaird> Ended up ordering from Farnell/Element14..
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2012-04-23T09:55:05 < cjbaird> (whose Australian warehouse & trade counter is 3kms from here :)
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2012-04-23T09:58:06 < dongs> see the problem is that youre in australia
2012-04-23T10:00:45 < cjbaird> Sorry, great great grandparents were thieves. :P
2012-04-23T10:02:45 < cjbaird> (well actually, one of them was on the run from the original/Old IRA...)
2012-04-23T10:12:37 < dongs> http://www.youtube.com/watch?v=VTAU647jzzk afroreballing
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2012-04-23T10:19:48 < cjbaird> I'll be more impressed when he successfully puts that all back together...
2012-04-23T10:22:21 < dongs> im switll watchin that aprt
2012-04-23T10:22:35 < dongs> hes putting it back togther
2012-04-23T10:24:37 < dongs> seems he got the shit working
2012-04-23T10:24:44 < dongs> thats pretty amazing
2012-04-23T10:25:24 < zyp> hot-hair station
2012-04-23T10:25:41 < dongs> AMAZING VIDEO!! SEEMS LIKE THE TRICKIEST PART FOR YOU WAS REMOVING THE BEZEL.
2012-04-23T10:25:43 < dongs> WITH ALL THE TIME AND EFFORT. REQUIRED, I'D RATHER JUST BUY A NEW MOTHERBOARD/GFXCRD. TOO MUCH HASSLE FOR 2012.
2012-04-23T10:25:46 < dongs> lol!}
2012-04-23T10:29:03 < cjbaird> My instincts would be to not bother with cleaning-up the IC and just use a new one... (ESD issues, et.al.) ... Of course, that's not usually a possibility when repairing an Xbox or the like..
2012-04-23T10:30:26 < cjbaird> Why do I get the feeling this now-found knowledge is going to bite me some day. :/
2012-04-23T10:44:50 < cjbaird> I found a Fujitsu Amilo laptop not too long ago that only had a problem with the Nvidia video.. Maybe something like that would've worked. (But then, it would have been a lot of effort for a laptop that couldn't do Linux/BSD because of the Nvida chipsets on Ethernet & etc.)
2012-04-23T11:30:06 < dongs> ya, cuz , running windows on a laptop just owuldnt make sense at all
2012-04-23T11:30:36 < dongs> except that laptop was probably trash anway, notice how intel banned all teh retarded shitty manufacturers like ALI/SIS/VIA/etc from making decent chipsets for their processors
2012-04-23T11:30:53 < dongs> anyone buying nonintel stuff in 2012 is a dumbfuck anyway.
2012-04-23T11:31:33 < dongs> as for me, I like pushing power button on my laptop and sticking it into my bag, and forgetting about it until I need to use it again
2012-04-23T11:31:43 < dongs> and hwen  Ido, it comes back to exactly where i left it.
2012-04-23T11:31:56 < dongs> and it doesnt need to dump 16gigs of data on hard disk
2012-04-23T11:32:04 < dongs> nor do i need to make a special partition for this prupose
2012-04-23T11:32:12 < dongs> or switch to some console mode and run some magical shit
2012-04-23T11:32:16 < dongs> all I do is press pwoer button.
2012-04-23T11:32:30 < dongs> when lunix manages this same level of usability (maybe sometime in 2038) lemme know.
2012-04-23T11:32:31 < dongs> until then, its garbage
2012-04-23T11:32:45 < zyp> agreed
2012-04-23T11:37:10 < zyp> I mean, it's supposed to work like that, and does _some_ of the times
2012-04-23T11:37:41 < zyp> and the other times it locks up while going to sleep or waking up again
2012-04-23T11:38:07 < zyp> I stopped putting my work laptop in suspend because it doesn't work reliably
2012-04-23T11:58:05 < cjbaird> Poor babies.
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2012-04-23T12:26:05 <+jpa-> for me it works reliably and exactly like that :)
2012-04-23T12:26:41 <+jpa-> but i guess i'm just lucky
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2012-04-23T13:58:04 < Laurenceb> can someone explain how heap works in c?
2012-04-23T13:58:13 < Laurenceb> is there some sort of global that points to it?
2012-04-23T14:01:13 < zyp> huh?
2012-04-23T14:01:18 < Laurenceb> guess i could use malloc
2012-04-23T14:01:25 < Laurenceb> and store the pointer address
2012-04-23T14:01:36 < Laurenceb> but thats not quite the same
2012-04-23T14:01:46 < zyp> what do you mean?
2012-04-23T14:01:57 < Laurenceb> if i want to know how far the stack has to grow before it hits heap
2012-04-23T14:05:48 < zyp> remember that heap is growing towards stack aswell
2012-04-23T14:07:01 < zyp> which heap implementation are you using? newlib?
2012-04-23T14:07:03 < Laurenceb> i know
2012-04-23T14:07:07 < Laurenceb> yes
2012-04-23T14:07:22 < zyp> then heap will call sbrk to grow
2012-04-23T14:07:35 < Laurenceb> just reading ANSI spec - all the heap stuff is supposed to be private?
2012-04-23T14:07:45 < Laurenceb> whats sbrk?
2012-04-23T14:08:17 < zyp> sbrk is the function called to allocate more space for heap
2012-04-23T14:08:38 < zyp> that you have to provide to use newlib heap
2012-04-23T14:08:58 < zyp> so in sbrk you would know how large your heap is
2012-04-23T14:09:28 < zyp> I think there are some example implementations of sbrk which does check for heap-stack-collision
2012-04-23T14:09:38 < Laurenceb> i see
2012-04-23T14:09:51 < Laurenceb> i was wanting to check space beterr heap and stack at runtime
2012-04-23T14:09:56 < Laurenceb> *between
2012-04-23T14:10:25 < cjbaird> gee, I can just type "man brk" on my LINUX system and know what it's about... :)
2012-04-23T14:11:18 < gsmcmull1n> Laurenceb: It's checked in the libnosys _sbrk implementation.
2012-04-23T14:11:46 < gsmcmull1n> You can inspect heap_end in _sbrk().
2012-04-23T14:11:56 < Laurenceb> ah cool
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2012-04-23T14:13:19 < Laurenceb> Sourcery/Sourcery_G++_Lite/bin/../lib/gcc/arm-none-eabi/4.5.2/../../../../arm-none-eabi/lib/thumb2/libcs3unhosted.a(unhosted-sbrk.o)
2012-04-23T14:13:30 < Laurenceb> hmm thats all i see
2012-04-23T14:16:44 < Laurenceb> ah nvm found it
2012-04-23T14:16:49 < Laurenceb> __cs3_heap_end   is what i want
2012-04-23T14:17:23 < gsmcmull1n> Ok.  I don't know about code sourcery.
2012-04-23T14:18:58 < Laurenceb> does c suffer from lack of garbage collect if you make heavy use of malloc with different block sizes?
2012-04-23T14:20:20 < Laurenceb> doesnt the heap get full of "holes"  ?
2012-04-23T14:20:21 < karlp> depends on your malloc implementation :)
2012-04-23T14:20:41 < karlp> which is why you offten get an assignment to write malloc in university
2012-04-23T14:20:51 < Laurenceb> or in real world applications with lots of different allocation sizes does that problem tend to stabilise?
2012-04-23T14:21:38 < Laurenceb> i can imagine in most cases it wouldnt continues to grow forever if the malloc starts from the bottom until it sees a gap big enough to fit the latest request
2012-04-23T14:22:05 < Laurenceb> interesting
2012-04-23T14:22:06 < karlp> I tend to go with, a) don't bother thinking about it
2012-04-23T14:22:08 < zyp> good malloc implementations have tricks to reduce fragmentation
2012-04-23T14:22:09 < Laurenceb> lol
2012-04-23T14:22:17 < karlp> but if youð're pushing the limits, then you do need to know about it
2012-04-23T14:22:31 < karlp> auto defragging ones might be slower, or take up more space
2012-04-23T14:22:40 < Laurenceb> my case is pretty simple - some allocation at startup
2012-04-23T14:22:46 < Laurenceb> was just wondering about more complex cases
2012-04-23T14:23:07 < zyp> this is the reason there is several different allocations at all :p
2012-04-23T14:23:14 < karlp> indeed :)
2012-04-23T14:23:51 < karlp> it's not just C either.  even java has different allocators, and different parameters to make it more efficient when you know your usage patterns
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2012-04-23T16:13:39 < Laurenceb> http://mammon.github.com/gdb_init.txt
2012-04-23T16:13:49 < Laurenceb> "# DESCRIPTION: A cracker-friendly gdb configuration file."
2012-04-23T16:13:51 < Laurenceb> lol
2012-04-23T16:16:35 < zyp> you mean scriptkiddie-friendly?
2012-04-23T16:18:00 < Laurenceb> http://en.wikipedia.org/wiki/Cracker_%28pejorative%29
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2012-04-23T17:42:17 < Laurenceb> awesome
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2012-04-23T17:42:23 < Laurenceb> fixed SWD connect issue
2012-04-23T17:42:35 < Laurenceb> set var {int}(0x40021024)=0x0C000000
2012-04-23T17:44:53 < ziph> Not having to mess with that stuff (in most cases) is worth the price of CrossWorks alone. ;)
2012-04-23T17:45:18 < Laurenceb> why does "file main.elf"  in .gdbinit not seem to work?
2012-04-23T17:45:30 < Laurenceb> 0x08013cd0 in ??
2012-04-23T17:45:34 <+jpa-> why not just type gdb main.elf?
2012-04-23T17:45:43 < Laurenceb> ok
2012-04-23T17:48:05 < Laurenceb> http://pastebin.com/ntpkp8Eb
2012-04-23T17:48:09 < Laurenceb> look sane?
2012-04-23T17:51:46 < zyp> you don't need a filename after load
2012-04-23T17:52:27 < zyp> oh, and you can't execute reconnect before you have defined it
2012-04-23T17:52:36 < zyp> move the first line of the file last
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2012-04-23T17:55:25 < Laurenceb> ok
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2012-04-23T18:35:17 <+Steffanx> nu
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2012-04-23T20:30:39 <+Steffanx> gsmcmull1n hup hup
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2012-04-23T21:39:26 < Laurenceb_> yo
2012-04-23T21:39:29 < Laurenceb_> sup
2012-04-23T21:39:33 < Laurenceb_> the sky bro
2012-04-23T21:52:20 <+Steffanx> Laurenceb_ nice monologue
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2012-04-23T21:53:16 < Laurenceb_> ok, so why does this not work https://github.com/Laurenceb/STM32-Logger/blob/master/.gdbinit
2012-04-23T21:53:23 < TitanMKD> hi
2012-04-23T21:53:31 < Laurenceb_> yet if i move lines 7 to 9 to the top it does
2012-04-23T21:53:44 < Laurenceb_> - it connects but line 9 doesnt work atm
2012-04-23T21:54:43 < TitanMKD> Anyone know if ST has planned a STM32F4 Discovery board without accelero and with ULPI ;) ?
2012-04-23T22:01:29 < zyp> I wouldn't assume they have
2012-04-23T22:01:45 < karlp> what's ULPI?
2012-04-23T22:01:51 < zyp> if you need HS USB, make your own board with both F4 and PHY on same board
2012-04-23T22:02:03 < zyp> ULPI is the interface between USB MAC and PHY
2012-04-23T22:02:25 < TitanMKD> yes
2012-04-23T22:02:37 < TitanMKD> I will hack an STM32F4 Discovery ;)
2012-04-23T22:03:04 < TitanMKD> to remove accelero and other I2c stuff i do not need and connect ULPI
2012-04-23T22:03:15 < zyp> sounds unreliable and dumb, ULPI signals are fairly high frequency stuff
2012-04-23T22:03:33 <+jpa-> TitanMKD: why not just make a custom board?
2012-04-23T22:04:05 < TitanMKD> jpa- because I have not time for that and STM32F4 discovery is so cheap
2012-04-23T22:04:24 < TitanMKD> in addition the STM32F4 is pratically at same price as the full board
2012-04-23T22:04:33 <+jpa-> but 480MHz signals are not going to go properly through some crappy soldered-on wires
2012-04-23T22:04:53 < TitanMKD> jpa- if they are short it will be ok maybe ;)
2012-04-23T22:04:58 < zyp> modifying a discovery board and ghettoing on a PHY sounds more time consuming than making a proper board
2012-04-23T22:05:26 <+jpa-> and if you design a proper board and order e.g. from seeed, then you have 10 boards you can just solder components on when you need one
2012-04-23T22:05:27 < karlp> run this by me again? you can by a usb phy chip? that has a ULPI interface and a 4 wire usb connector interface?
2012-04-23T22:05:38 < karlp> and the F4 has a ULPI interface for this purpose?
2012-04-23T22:05:53 < zyp> karlp, yes
2012-04-23T22:06:10 < karlp> I thought you had the USB lines d+/d- directly on the F4?
2012-04-23T22:06:12 < zyp> it is required for HS USB, because the F4 only have an internal FS PHY
2012-04-23T22:06:17 < karlp> ahh.
2012-04-23T22:06:31 < zyp> actually, it has two FS PHYs
2012-04-23T22:06:33 < karlp> now that all makes sense :)
2012-04-23T22:06:50 < zyp> one connected to the OTG_FS peripheral and one to the OTG_HS peripheral
2012-04-23T22:07:03 < zyp> so OTG_HS will only operate in FS mode without external PHY
2012-04-23T22:07:06 < TitanMKD> jpa- yes maybe i will design a little plugin card for STM32F4 Discovery
2012-04-23T22:07:19 < TitanMKD> jpa- adding ULPI and some little cool other stuff
2012-04-23T22:07:27 < TitanMKD> maybe other guys here could be interested
2012-04-23T22:07:43 <+jpa-> err
2012-04-23T22:07:59 < zyp> why not put on a seperate F4 instead of relying on a discovery board?
2012-04-23T22:08:20 < TitanMKD> yes else to do a full board ;)
2012-04-23T22:08:25 < karlp> TitanMKD: I think most people here are not really fans of buying multiple boards and shields and stacking to the moon
2012-04-23T22:08:47 < TitanMKD> a breakout board with 2 USB with 1 ULPI 480mbps
2012-04-23T22:08:50 < zyp> except dongs, he loves arduino
2012-04-23T22:09:00 < karlp> zyp: yeah. I can tell :)
2012-04-23T22:10:44 < zyp> TitanMKD, by the way, what are you going to use HS USB for?
2012-04-23T22:10:44 <+jpa-> it's already rotten his brains, based on his behaviour
2012-04-23T22:10:54 < zyp> just asking out of curiosity
2012-04-23T22:11:57 < Thorn> assert(-2u == 4294967294);
2012-04-23T22:12:52 < TitanMKD> zyp for special purpose ;) like fast logger
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2012-04-23T23:47:21 < dongs> nice internet chats
--- Day changed Tue Apr 24 2012
2012-04-24T00:02:05 < TitanMKD> bye
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2012-04-24T00:09:16 < Laurenceb_> or not
2012-04-24T00:09:19 < Laurenceb_> once you arrive
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2012-04-24T00:20:05 < Laurenceb_> dongs: guess what ive been doing?
2012-04-24T00:20:34 < Laurenceb_> ive been using linux to run texane and gdb and reflash a maple arduino
2012-04-24T00:22:46 < zyp> he will be so proud of you
2012-04-24T00:23:03 < Laurenceb_> everything he hates combined
2012-04-24T00:25:03 < Laurenceb_> http://imgur.com/a/WbSwY
2012-04-24T00:26:07  * karlp giggles
2012-04-24T00:26:16 < zyp> now do SMT with that
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2012-04-24T00:33:49 < cjbaird> "I'm being a GNUfag, and nobody can stop me!" <rms />
2012-04-24T00:35:40 <+Steffanx> poor him
2012-04-24T00:44:23 -!- tavish [~tavish@unaffiliated/tavish] has quit [Ping timeout: 244 seconds]
2012-04-24T00:48:55 < dongs> < Laurenceb_> http://imgur.com/a/WbSwY
2012-04-24T00:48:58 < dongs> ???????????
2012-04-24T00:49:00 < dongs> i dont get it
2012-04-24T00:49:42 < zyp> ghetto soldering
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2012-04-24T01:00:28 < cjbaird> Sure, tell me this after I just put down $180 for a new Weller.
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2012-04-24T05:46:17 < cjbaird> New iron acquired: (X^_____^)   http://images.4chan.org/diy/src/1335235514742.jpg
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2012-04-24T10:03:52 < dongs> did you really just post your pic on 4chan
2012-04-24T10:18:45 < cjbaird> holey sheet the wntire thread: http://boards.4chan.org/diy/res/203162
2012-04-24T10:25:52 < cjbaird> Picked up a STM32L Discovery board today while I was at Farnell getting the Weller. Awww, it's so cute.
2012-04-24T10:26:42 < dongs> is L the one wtih a segment lcd
2012-04-24T10:27:34 < cjbaird> Yep. 6xalphanumeric chars, plus a few other symbols.
2012-04-24T10:27:41 < dongs> loll
2012-04-24T10:27:49 < dongs> >buy quality tools instead of made-in-China shit
2012-04-24T10:27:50 < dongs> Have you actually tried to do that? Some tools just plain aren't available from anywhere but China.
2012-04-24T10:28:02 < dongs> cjbaird: i think i have that then. or maybne its stm8ldiscovery
2012-04-24T10:29:06 < cjbaird> This one has the 'silder' touch switches at the bottom. 64kB flash, 16kB ram.
2012-04-24T10:30:14 < dongs> its the one in backgound of your iron pic isnt it
2012-04-24T10:30:36 < cjbaird> yep
2012-04-24T10:31:23 < dongs> frac = 1.0f / pow(2.0, cfg.acc_lpf_factor);
2012-04-24T10:31:26 < dongs> what kinda filter is that?
2012-04-24T10:31:37 < dongs> and then the usual accTemp[axis] = (1.0f - frac) * accTemp[axis] + accADC[axis] * frac;
2012-04-24T10:31:59 < dongs> still lpf isnt it?
2012-04-24T10:32:15 < zyp> first one sounds like gain adjustment according to lpf setting
2012-04-24T10:34:08 < dongs> whats the diff from just doing 1.0f / cfg.acc_lpf_factor
2012-04-24T10:34:14 < dongs> finer control? or wat
2012-04-24T10:34:27 < dongs> frac = 1.0f / cfg.acc_lpf_factor
2012-04-24T10:34:42 < zyp> pow(2, x) is equal to >> x
2012-04-24T10:34:47 < zyp> no
2012-04-24T10:34:50 < dongs> << x/
2012-04-24T10:34:52 < dongs> you mean
2012-04-24T10:35:12 < zyp> I had a / in front, but my irc client ate it :p
2012-04-24T10:35:22 < zyp> / pow(2, x) I meant
2012-04-24T10:35:26 < dongs> o
2012-04-24T10:36:43 < zyp> pow(2, x) is equal to 1 << x
2012-04-24T10:37:17 < zyp> so you could do the same like this: frac = 1.0f / float(1 << cfg.acc_lpf_factor);
2012-04-24T10:37:51 < dongs> right, but that doesnt really do anything different.
2012-04-24T10:38:03 < dongs> i mean i could just set lpf_factor to powers of 2.
2012-04-24T10:38:08 < dongs> and keep original.
2012-04-24T10:38:31 < cjbaird> And what would the range of cfg.acc_lpf_factor be?  ... Use a lookup table and avoid all the math.
2012-04-24T10:39:07 < dongs> not worried about that :)
2012-04-24T10:39:13 < zyp> I guess the point is to calculate frac automatically based on the setting you store in the lpf register in the sensor
2012-04-24T10:39:34 < dongs> nah this is software filter
2012-04-24T10:39:41 < zyp> oh
2012-04-24T10:39:43 < dongs> cfg.acc_blah is configurable by user
2012-04-24T10:39:55 < zyp> well, it's probably used somewhere else too
2012-04-24T10:40:07 < dongs> im jsut saying, the << blah is equivalent to just making acc_lpf_factor powers of 2
2012-04-24T10:40:47 < zyp> it's likely there because it's also causing a bitshift somewhere else in the code
2012-04-24T10:41:00 < zyp> so this is just to compensate for that
2012-04-24T10:42:13 < dongs> nope
2012-04-24T10:42:30 < zyp> then it doesn't make sense to write it like it's written
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2012-04-24T12:48:18 < karlp> hey libopencm3 changed their license to LGPL v3
2012-04-24T12:48:27 < karlp> hooray
2012-04-24T12:49:23 < dongs> as opposed to what
2012-04-24T12:49:28 < karlp> it used to be gplv3
2012-04-24T12:49:41 < dongs> <karlp> now i can use it in my commercial project, yay
2012-04-24T12:49:51 < karlp> though, if they don't have the linking exception, it's still kinda hard.
2012-04-24T12:49:59 < karlp> I have no commercial project using stm32
2012-04-24T12:50:06 < dongs> i have several
2012-04-24T12:50:07 < karlp> I just believe in more freedom than gpl for libraries
2012-04-24T12:50:11 < dongs> very expensive ones too.
2012-04-24T12:50:16 < dongs> but I jsut use stdperiphlib
2012-04-24T12:50:22 < dongs> cuz it works
2012-04-24T12:50:24 < dongs> and free as in aids
2012-04-24T12:54:40 < dongs> the only 'freedom' lgpl gives you is ability to use your shit in commercial porjects, no?
2012-04-24T12:55:24 < cjbaird> "I'm creating commercial products, but I'm too cheap to use licenced commercial software, and would rather scab free stuff." :P
2012-04-24T12:55:55 < dongs> and?
2012-04-24T12:55:56 < cjbaird> "Hey FOSS coders, create software for me to make monies with."
2012-04-24T12:56:05 < dongs> im not using foss.
2012-04-24T12:56:10 < dongs> i just sai im using stdperiphlib.
2012-04-24T12:56:12 < dongs> said.
2012-04-24T12:56:20 < dongs> the free shit from ST.
2012-04-24T12:56:34 < dongs> i dont even use any foss shit to build the projects, 2 of htem are in crossworks and one in keil
2012-04-24T12:57:00 < zyp> not that you care about licenses
2012-04-24T12:57:01 < dongs> beacuse honestly command line building/debugging is so 1996
2012-04-24T12:57:12 < dongs> i pay for development tools
2012-04-24T12:57:15 < dongs> and EDA tools.
2012-04-24T12:57:16 < dongs> thank you.
2012-04-24T12:57:26 < dongs> for your concern.
2012-04-24T12:57:44 < zyp> I thought you said you didn't
2012-04-24T12:57:54 < dongs> where?
2012-04-24T12:58:08 < zyp> in a previous discussion
2012-04-24T12:58:53 < dongs> i find that unlikely.
2012-04-24T12:59:35 < dongs> both my pcb cad and crossworks is paid for
2012-04-24T12:59:48 < dongs> im not making enough money wiht keil to pay for it but hte minute I do, I will
2012-04-24T13:00:05 < dongs> the crossworks projects have paid off for htemselves long time ago
2012-04-24T13:01:35 < cjbaird> Why care about GPL/LGPL then. Well, besides from wanting LGPL so you can take from it...
2012-04-24T13:01:52 < dongs> exactly what I said, genius
2012-04-24T13:02:08 < dongs>  < dongs> the only 'freedom' lgpl gives you is ability to use your shit in commercial porjects, no?
2012-04-24T13:04:54 < dongs> im saying for something like libopencm3, making it lgpl just allows chinese thieves to legally use it in their profit projects
2012-04-24T13:05:07 < dongs> not that tehy would blink twice on just using it if it was gpl anyway
2012-04-24T13:05:13 < dongs> but just sayin.
2012-04-24T13:05:51 < dongs> but thing is, integrating cm3 with any sort of IDE that isnt based on GNU shit is a fucking chore
2012-04-24T13:06:01 < dongs> while stdperiphlib just works
2012-04-24T13:06:15 < dongs> so chances of it being used for some serious commercial work are pretty low anyway
2012-04-24T13:06:59 < cjbaird> Trying to remeber which biggy company it was that's entire MCU support libraries were stolen GPL code..  (probably Broadcom..)
2012-04-24T13:07:19 < dongs> probably. and they're trying to "gie back" with hypeberrypi.
2012-04-24T13:07:22 < dongs> gove.
2012-04-24T13:07:24 < dongs> GIVE, fuckasfgfhd
2012-04-24T13:07:44 < dongs> (which is even more closed)
2012-04-24T13:12:55 < karlp> no more closed than any computer with binary video drivers
2012-04-24T13:14:09 < cjbaird> At least the RPi has got a super-cheap Linux box out the door, imperfect as it is-- after 20 years of people trying and failing (..usually after that visit from a Microsoft Executive with his Testicle-crushing mallet... re: DEC, Asus, ...)
2012-04-24T13:14:42 < cjbaird> 1997, is was the DEC SHARC thin clients, promised for ~$150...
2012-04-24T13:15:57 < cjbaird> ...which came to an end when MS did a bait-and-switch on the Alpha NT project.. after DEC had invested $200 Million into the hardware to run it..
2012-04-24T13:18:20 < cjbaird> Asus EeePC-- promised for $200 (ententually)... but, gee, another visit from MS, delivery gets put back 9 months for XP to be kludged to work on the 800x480 screen.. and, gee, then the entire 'netbook' definition gets changed to accomodate Windows7's needs, adding $200-$300 to the cost.
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2012-04-24T13:21:45 < Laurenceb> i want to get a toshiba ac100u
2012-04-24T13:21:54 < Laurenceb> but the price is now going up not down :(
2012-04-24T13:22:12 < Laurenceb> everyone wants to run ubuntu/debian on it it seems
2012-04-24T13:22:30 < Laurenceb> just missed one for £75 on ebay
2012-04-24T13:23:32 < Laurenceb> i think theres some spare room below the keyboard for adding extra hardware
2012-04-24T13:26:40 < cjbaird> Ha, a proper Android netbook that's not a Chinese Shanzhai product..
2012-04-24T13:27:03 < Laurenceb> proper and Android dont go together
2012-04-24T13:27:11 < Laurenceb> wipe that shit off it
2012-04-24T13:28:06 < Laurenceb> http://wiki.debian.org/InstallingDebianOn/Toshiba/AC100
2012-04-24T13:28:20 < cjbaird> Asus' original concept for the EeePC was something like that... (before Windows came along and turned netbooks into Yet Another Desktop Computer wannabe..)
2012-04-24T13:29:48 < Laurenceb> i was thinking of installing some custom hardware like SWD adaptor and 434mhz comms for uavs under the keypad
2012-04-24T13:30:02 < zyp> wtf
2012-04-24T13:30:07 < zyp> swd adapter?
2012-04-24T13:30:12 < Laurenceb> why not
2012-04-24T13:30:26 < zyp> because it's pretty pointless
2012-04-24T13:30:36 < zyp> no benefit
2012-04-24T13:30:44 < Laurenceb> who cares if its cheap
2012-04-24T13:31:08 < Laurenceb> unfortunately atm its gone on to ~150 on fleabay
2012-04-24T13:31:13 < Laurenceb> so no ac100 for me
2012-04-24T13:31:58 < zyp> swd is not suited for long distances, so you want the adapter close to the target board, not close to the host
2012-04-24T13:32:19 < Laurenceb> i wanted something portable for use in the field
2012-04-24T13:32:23 < Laurenceb> literally
2012-04-24T13:32:36 < Laurenceb> as a ground station
2012-04-24T13:32:46 < zyp> you don't want to have to almost put your laptop on the target to connect to it.
2012-04-24T13:32:53 < zyp> what's wrong with usb?
2012-04-24T13:32:58 < Laurenceb> ok ok
2012-04-24T13:33:01 < Laurenceb> calm down
2012-04-24T13:33:30 < Laurenceb> maybe thats not the best thing to put in there
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2012-04-24T13:58:05 < dongs> ttp://www.reddit.com/r/AskReddit/comments/so5zg/people_always_seem_to_have_roommate_horror/c4fp5xy?context=3
2012-04-24T13:58:08 < dongs> attn Laurenceb
2012-04-24T13:59:11 < Laurenceb> reddit?!
2012-04-24T13:59:21 < dongs> the story of your life.
2012-04-24T14:01:33 < Laurenceb> actually thats probably true
2012-04-24T14:01:53 < Laurenceb> im not sure who my "real" dad is
2012-04-24T14:01:59 < cjbaird> Classic Gen-X Australian Sharehouse Horror book: https://en.wikipedia.org/wiki/He_Died_with_a_Felafel_in_His_Hand
2012-04-24T14:03:00 < cjbaird> I personally only had to deal with a housemate fucking his best friend's fiancee every night for two months, before she left for Melbourne to get married... >_>
2012-04-24T14:03:02 < Laurenceb> *said is southern accent*
2012-04-24T14:03:06 < Laurenceb> *in
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2012-04-24T14:08:49 < dongs> http://decals.rcgroups.net/storage/ecilop450x1104.gif
2012-04-24T14:09:13 < dongs> might spend 300bux of paypal fakemoney to get an ad on rcg
2012-04-24T14:09:17 < dongs> of a giant dong
2012-04-24T14:09:24 < zyp> :p
2012-04-24T14:09:52 < dongs> anything for the lulz.
2012-04-24T14:09:57 < zyp> oh, btw, I saw dji nazi at my local rc store last time I were there
2012-04-24T14:10:03 < zyp> what's the normal price of that?
2012-04-24T14:10:17 < dongs> its all pricefixed
2012-04-24T14:10:22 < dongs> $220 us or hwaever in eur
2012-04-24T14:10:31 < dongs> for fc
2012-04-24T14:10:37 < dongs> and i think 450$ for kit?
2012-04-24T14:11:02 < zyp> I think it was 1800 nok for fc, that should be a bit over $300
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2012-04-24T14:11:20 < zyp> 1865, so $325
2012-04-24T14:11:22 < dongs> sounds like typical eurorape
2012-04-24T14:11:38 < Laurenceb> gay rape?
2012-04-24T14:12:24 <+jpa-> dongs: here all students have their own rooms :)
2012-04-24T14:12:52 < dongs> http://i.imgur.com/yywnk.jpg i was jsut flying the F450 kit I had shipped over here
2012-04-24T14:12:55 < dongs> it flies like total shit
2012-04-24T14:13:01 < dongs> uncontrollably wobbly on descent
2012-04-24T14:13:06 < dongs> any kinda wind wobbles it
2012-04-24T14:13:06 < dongs> etc
2012-04-24T14:13:16 < Laurenceb> jpa-: yeah, how the hell could you live with shared rooms
2012-04-24T14:13:22 < dongs> absolutely nothing that would make me actually pay full price for that shit
2012-04-24T14:13:26 < Laurenceb> sounds crazy
2012-04-24T14:13:42 < karlp> what sort of vehicle is that attached to?
2012-04-24T14:13:48 < karlp> is this copters or planes or what?
2012-04-24T14:13:50 <+jpa-> Laurenceb: well the link dongs pasted doesn't seem too bad ,)
2012-04-24T14:13:55 < dongs> i think the only peple on rcg praisi\ng that trash are people who have never had flown anything rc
2012-04-24T14:14:46 < dongs> karlp: dongcopter
2012-04-24T14:14:58 < karlp> lies, I see no dongs in the picture
2012-04-24T14:15:02 < karlp> pics or gtfo
2012-04-24T14:15:18 < dongs> the guy in green = dongs
2012-04-24T14:15:51 < Laurenceb> WTF
2012-04-24T14:15:57 < Laurenceb> someone has stolen my scope
2012-04-24T14:16:06  * Laurenceb rage
2012-04-24T14:16:36 < karlp> I meant on the coptor itself :)
2012-04-24T14:16:41 < zyp> did you have a scope worth stealing?
2012-04-24T14:17:13 < dongs> unlikely
2012-04-24T14:17:13 < Laurenceb> yes, it was even better than the one dongs has
2012-04-24T14:17:17 < dongs> really.
2012-04-24T14:17:25 < dongs> was it YOURS though.
2012-04-24T14:17:28 < Laurenceb> i think some undergrads have taken it :-/
2012-04-24T14:17:30 < Laurenceb> nope
2012-04-24T14:17:31 < dongs> big difference.
2012-04-24T14:17:36 < Laurenceb> in my office :P
2012-04-24T14:17:41 < dongs> oh, fuck, which reminds me i have to ship the scope out tomrowo too
2012-04-24T14:17:47 < dongs> fuck so much shit to do before catching flight
2012-04-24T14:18:12 < dongs> im giving away my shitty TDS2022B to a fag on indefinite lease terms
2012-04-24T14:18:16 < Laurenceb> then spend less time on irc
2012-04-24T14:18:40 < dongs> i could ask abck for it sometime but i probably wont..
2012-04-24T14:19:14 < karlp> doh, wireless didn't come up in the reflashed image. ethernet cable juggling ahoy
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2012-04-24T14:48:39 < Laurenceb> ok found my scope, time to look at some noise
2012-04-24T14:49:50 < Laurenceb> if i do fft on the scope, what are the units?
2012-04-24T14:50:17 < Laurenceb> i see "M  1.00mV     1.25KHz"
2012-04-24T14:57:16 < Laurenceb> nvm - looks like with 1M points and 1Msps sampling i get noise in volts RMS/sqrt(Hz)
2012-04-24T15:16:39 < Laurenceb> anyone here got any idea what 20dBv means?
2012-04-24T15:16:52 < Laurenceb> theres no way i have 100v noise
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2012-04-24T16:40:37 < zyp> wtf
2012-04-24T16:41:02 < zyp> http://www.kickstarter.com/projects/1567900542/mini-i2c-oled <- that shit is readily available for cheaper than that at ebay
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2012-04-24T16:46:44 <+jpa-> zyp: it's probably the 3v3 -> 5v level translation that the arduino noobs need :)
2012-04-24T16:55:37 < karlp> kickstarter: connecting suckers with the world since 20XX
2012-04-24T16:58:07 < Laurenceb> (gdb) set var {int}0x40021024=0x0C000000
2012-04-24T16:58:07 < Laurenceb> (gdb) p/x *(int*)(0x40021024)
2012-04-24T16:58:07 < Laurenceb> $8 = 0x24000000
2012-04-24T16:58:10 < Laurenceb> wutttt
2012-04-24T16:59:09 < zyp> what's {int}?
2012-04-24T17:01:06 < Laurenceb> oh
2012-04-24T17:01:07 < Laurenceb> set var {int}0x40021024=0x01000000
2012-04-24T17:01:07 < Laurenceb> (gdb) p/x *(int*)(0x40021024)
2012-04-24T17:01:07 < Laurenceb> $9 = 0x0
2012-04-24T17:01:13 < Laurenceb> i have to set the reset flag
2012-04-24T17:01:55 < zyp> I haven't seen that way of casting before, I always use the second form there
2012-04-24T17:02:00 < zyp> both for assignment and printing
2012-04-24T17:03:17 < Laurenceb> ok
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2012-04-24T18:01:51 < karlp> whee, I bet this is "fun" to program for: http://eu.mouser.com/nxplpc4300/?cm_sp=homepage-_-newproducts-_-NXP+Semiconductors+LPC4300+CortexM4+MCUs+with+CortexM0+CoProcessors
2012-04-24T18:02:00 < karlp> I wonder what the linker scripts would look like for such a beast
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2012-04-24T18:13:32 < Laurenceb> lol
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2012-04-24T18:18:33 < zyp> karlp, like a normal linker script, with two seperate sets of all sections
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2012-04-24T18:27:07 < karlp> ie, a great big damn mess.
2012-04-24T18:27:29 <+jpa-> or maybe it is programmed using two separate binaries?
2012-04-24T18:27:56 < karlp> the product videos seem to say that the m4 comes up and then intializes the m0
2012-04-24T18:42:02 < Laurenceb> so the m0 is effectively a peripheral
2012-04-24T18:46:36 < karlp> the talk seem to suggest that you have the m0 handle the io, and let the m4 do the processing and handing data back to the m0
2012-04-24T18:46:57 < karlp> so m4 boots, loads up m0, then sits around waiting for jobs from the m0?
2012-04-24T18:47:12 < karlp> talks about having built in mailboxes and queues, and some freertos support code,
2012-04-24T18:47:21 < karlp> so probably anything crazy you can come up with.
2012-04-24T18:49:43 < zyp> karlp, it's a common memory space
2012-04-24T18:49:55 < zyp> so you can link all in one binary
2012-04-24T18:51:05 < zyp> but M0 can't execute thumb2 instructions, so you likely doesn't want to share code
2012-04-24T18:55:21 < Laurenceb> when i was at scouts we rubbed two dicks together but all we got was a lousy fire
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2012-04-24T19:01:26 < Laurenceb> http://i.imgur.com/qa0Ek.png
2012-04-24T19:01:51 < Laurenceb> ^spectrum from photodiode - the spikes seem to be off a CFL
2012-04-24T19:10:12 < emeb> Am I missing something or do those LPC4300 parts have no on-chip flash?
2012-04-24T19:10:37 < emeb> ie - all code must be loaded at power-up from external SPI/I2C/Parallel parts?
2012-04-24T19:10:50 < zyp> emeb, some have, some don't
2012-04-24T19:11:16 < karlp> some of them have up to a meg of on chip flash
2012-04-24T19:11:30 < zyp> the LPC43x0 only have ram
2012-04-24T19:11:52 < zyp> last number seems to indicate flash size
2012-04-24T19:12:06 < emeb> Aha. I was only looking at x0 parts.
2012-04-24T19:13:40 < emeb> and looks like the x256 parts are not available yet.
2012-04-24T19:14:10 < emeb> err x7 parts...
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2012-04-24T19:16:12 < emeb> Was interested in the LPC43xx because they have on-chip SDRAM controller - haven't seen any other Cortex parts with that feature except for some high-end Freescale parts that are also unobtainium.
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2012-04-24T19:29:07 <+izua> LPCs are philips, right?
2012-04-24T19:29:53 <+izua> i have played with some 20XX ages ago
2012-04-24T19:30:23 <+izua> the neatest thing compared to a modern stm32 is that they sucked, but you could protect your code :)
2012-04-24T19:30:50 < zyp> LPC is NXP, which is philips, yes
2012-04-24T19:45:23 < emeb> STM32 has some code protection.
2012-04-24T19:45:45 < emeb> Not as comprehensive as what you see on other parts, but it's definitely there.
2012-04-24T19:46:38 <+izua> heh
2012-04-24T19:46:58 <+izua> it also has some epic bugs :D
2012-04-24T19:48:29 < karlp> don't the toshiba ones or the fujitsu have sdram controller?
2012-04-24T19:48:45 < karlp> I thought I saw them while looking through the mouser & digikey catalogs
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2012-04-24T20:41:19  * emeb reads the code protection thread on my.st.com
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2012-04-24T20:52:39 < emeb> So basically it comes down to this: 1) Get JTAG/SWD access at reset time before on-chip code can disable it. 2) load stub into on-chip SRAM to read flash and send it out somehow. 3) Execute on-chip stub 4) Profit!!!
2012-04-24T20:54:00 < Thorn> if flash protection is on an you boot from sram then flash is unreadable iirc
2012-04-24T20:55:04 < emeb> That's what ST docs say, but consensus from folks who have tried seems to be that flash is readable by code in SRAM even if protection is on.
2012-04-24T20:57:10 < Thorn> well I imagine it's not too difficult to try (and I haven't)
2012-04-24T20:57:24 < emeb> Yep.
2012-04-24T20:58:08 < emeb> So it seems that code protection will stop folks with low motivation, but anyone who really wants your code can get it.
2012-04-24T20:59:04 < emeb> Basically, it's a speedbump. :)
2012-04-24T21:00:19 < Thorn> I wonder if that changed in f4
2012-04-24T21:01:08 < Thorn> although it's by no means a replacement for f1 family which has a huge errata besides that
2012-04-24T21:01:46 < emeb> Hard to say. F4 is a completely different animal. Not nearly as broad a range of devices.
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2012-04-24T21:07:38 < karlp> as I understand it, given the price of decapping and analysis via xrays, all the code protection stuff is just a bump anyway.
2012-04-24T21:08:05 < karlp> so it's more, "what is the imapct on all my devices if a single device is compromised"
2012-04-24T21:09:10 < Thorn> a Chinese clone that costs less than the parts cost from digikey
2012-04-24T21:09:54 <+izua> but running your code
2012-04-24T21:10:16 < emeb> A buddy of mine used to work at MCHP - apparently they go to great lengths for code security, even to decapping.
2012-04-24T21:10:31 <+izua> in faily ways you'd never thought possible, because of bad hardware, but bearing an "official clone" logo
2012-04-24T21:10:32 < Thorn> I got a dc/dc boardfrom ebay for less than what I'd pay for the chip alone
2012-04-24T21:10:41 <+izua> so you'd get the blame for the fails, not the bad hardware :D
2012-04-24T21:11:07 < emeb> They lay metal over the flash memory to prevent probing the transistor state.
2012-04-24T21:13:30 < Thorn> http://www.ebay.com/itm/260858526297?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
2012-04-24T21:13:45 < emeb> Whole deal with code theft & copying design comes down to economics. Everyone is vulnerable, but if you're making scads of money on a product then you're a good target. If you're a niche player, chances are the return on pirating your product is not worth the effort.
2012-04-24T21:13:52 < Thorn> $1.94, the chip is $2.29/10k in digikey
2012-04-24T21:14:34 < Thorn> (and the inductor isn't cheap too)
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2012-04-24T21:15:35 < emeb> sheesh - even the trimmer pot could cost more than that.
2012-04-24T21:16:20 < Thorn> I've heard about the Chinese copying a welding machine controller designed here in Russia and never sold outside it
2012-04-24T21:17:26 < emeb> Heh - my solution: generated & monetize your ideas faster than anyone else can copy them.
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2012-04-24T21:22:20 <+izua> woo
2012-04-24T21:22:29 <+izua> i scored 80KWh total power usage this month
2012-04-24T21:24:45 <+Steffanx> that's a good thing for you?
2012-04-24T21:26:21 < emeb> izua: do you run HVAC?
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2012-04-24T21:30:02 <+jpa-> 80KWh isn't that much for a month
2012-04-24T21:31:50 <+jpa-> costs like 8€ or so?
2012-04-24T21:35:14 < zyp> 80KWh sounds like nothing
2012-04-24T21:35:33 < emeb> Yep. I used 35kWh yesterday alone.
2012-04-24T21:35:42 < emeb> smart meter FTW
2012-04-24T21:35:55 <+Steffanx> Here we use ~5k kWh/year
2012-04-24T21:36:36 < emeb> that's pretty low. How do you do that?
2012-04-24T21:36:45 <+jpa-> we don't have a meter :)
2012-04-24T21:36:56 < zyp> me neither
2012-04-24T21:36:57 <+Steffanx> but that's me.. and 5 others
2012-04-24T21:37:02 <+Steffanx> no meter?
2012-04-24T21:37:05 < emeb> ah - you steal it.
2012-04-24T21:37:17 < emeb> Or you generate your own?
2012-04-24T21:37:25 <+jpa-> nope, just no meter
2012-04-24T21:37:39 <+Steffanx> So how you pay for it?
2012-04-24T21:37:39 <+jpa-> they take the whole building usage and divide it by the number of appartments
2012-04-24T21:37:40 < zyp> my apartment doesn't have a seperate meter
2012-04-24T21:37:45 <+Steffanx> or how they determine how much to pay?
2012-04-24T21:38:03 < emeb> it's included in the housing cost.
2012-04-24T21:38:24 < zyp> house owner here was supposed to install a seperate meter when I moved in, but still haven't gotten it done
2012-04-24T21:38:31 <+Steffanx> That's why zyp is online 24/7
2012-04-24T21:38:58 < zyp> nah, my irc client is not running from home anyway
2012-04-24T21:39:17 < Laurenceb_> its running from the isle of man
2012-04-24T21:39:26 < zyp> no, it's running from london
2012-04-24T21:39:54 < Laurenceb_> behind 7 proxies?
2012-04-24T21:40:01 <+Steffanx> 17
2012-04-24T21:40:19 < zyp> nah, it's just running at the same server as the webstuff
2012-04-24T21:40:23 < zyp> at linode
2012-04-24T21:40:43 < Laurenceb_> http://www.youtube.com/watch?v=O2rGTXHvPCQ
2012-04-24T21:47:40 <+Steffanx> hmpf, just replaced the screen of my fathers notebook ...
2012-04-24T21:48:03 <+Steffanx> Went well except for the fact there's no video ..
2012-04-24T21:52:29 < emeb> Hmm - looking a power bill history, highest month over last year was 1700kWh in Aug. Heavy A/C month.
2012-04-24T21:54:10 < zyp> over here august is probably one of the cheapest months
2012-04-24T21:54:37 < zyp> at least for people without a/c
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2012-04-24T22:06:21 <+izua> nah, old buildings don't have HVAC, just a cheapo standalone AC (if you install one)
2012-04-24T22:09:26 <+izua> that irc thing is great
2012-04-24T22:09:42 <+izua> "i'll set up an alarm to see if he enters ANY irc channel"
2012-04-24T22:09:57 <+izua> luckily i speak 1337
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2012-04-24T23:16:28 < TitanMKD> hi
2012-04-24T23:24:19 < emeb> lo
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--- Day changed Wed Apr 25 2012
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2012-04-25T00:35:15 < dongs> http://i.imgur.com/QBXMd.jpg
2012-04-25T00:37:46 < Thorn> http://failblog.files.wordpress.com/2012/04/engrish-funny-engrish-funny-hand-shredded-ass-meat-ill-pass-thanks.jpg
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--- Log closed Wed Apr 25 02:20:31 2012
--- Log opened Wed Apr 25 02:21:15 2012
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2012-04-25T05:25:47 < dongs> ucpros delivered
2012-04-25T05:25:54 < dongs> cables look just like teh shit that costs $12 on digikey
2012-04-25T05:25:58 < dongs> feelin' pretty dum rite now\
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2012-04-25T05:39:47 < cjbaird> When I was looking at having to buy a serial level converter for 3vdc work (where my max232 dongle couldn't go), I went hipster web2.0 and got a DangerousPrototypes Bus Pirate... which had extra things like I2C, ftdi, etc.
2012-04-25T05:59:31 < cjbaird> D'oh. Had the baud rate set to 960bps instead of 9600...
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2012-04-25T06:18:51 < dongs> i prefer "buttpirate"
2012-04-25T06:18:59 < dongs> its a pic, so its automatically worthless
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2012-04-25T07:52:06 < cjbaird> 8051 were the PICs of the 8-bit era. They're worthless too. :P
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2012-04-25T11:51:28 < jpa-> hmm.. no space for reset button :/
2012-04-25T11:52:03 < zyp> do you need it?
2012-04-25T11:53:04 < zyp> I didn't put a reset button on my F4 board even though I probably had space
2012-04-25T11:54:46 < zyp> during development I can reset it through swd, and should I need to reset it at another time I could just pull the power
2012-04-25T11:56:37 < jpa-> this is F1
2012-04-25T11:56:47 < jpa-> i'm not so sure about the swd reset, it doesn't seem too reliable for me
2012-04-25T11:56:56 < jpa-> (ah, actually this is L151
2012-04-25T11:59:43 < zyp> what I meant is that the nrst signal is present on the swd connector
2012-04-25T11:59:58 < zyp> so you could easily hook up an external reset button
2012-04-25T12:00:02 < jpa-> not on my swd connector :)
2012-04-25T12:00:23 < zyp> then your swd connector is dumb.
2012-04-25T12:00:30 < jpa-> does F4 have reset on swd connector?
2012-04-25T12:00:33 < jpa-> because F1 does not
2012-04-25T12:00:36 < zyp> what?
2012-04-25T12:01:10 < zyp> what connector are you talking about now?
2012-04-25T12:01:40 < jpa-> that is the pinout on stlink1 http://kapsi.fi/~jpa/stuff/pix/stlink1.png
2012-04-25T12:01:42 < zyp> the chips don't come with connectors, the chips come with signals that you route to a connector on your board :p
2012-04-25T12:02:11 < zyp> oh, you're talking about discovery board stlink?
2012-04-25T12:02:15 < jpa-> sure, but i obviously design the connector so that it fits to my swd programmer (stlinkv1, which is on the F1 board)
2012-04-25T12:02:35 < jpa-> so yeah, i was a bit inaccurate
2012-04-25T12:02:52 < zyp> F4 discovery has a 6-pin connector there, including nrst and swo in addition to the ones you have
2012-04-25T12:02:55 < jpa-> does the discovery F4 have reset on SWD connector, or is this just on the black magic swd thingy?
2012-04-25T12:02:59 < jpa-> ok :)
2012-04-25T12:04:05 < zyp> and I don't know about reset through swd, what I meant is swd dongles that pull the swd line
2012-04-25T12:04:18 < zyp> that pull the nrst line
2012-04-25T12:04:41 < jpa-> yeah.. well there is some support for resetting through just swd.. but it doesn't seem to work every time
2012-04-25T12:07:50 < jpa-> http://koti.kapsi.fi/jpa/stuff/pix/sphere.png  R4 is my reset pull-up.. i wonder if there is any smd switch small enough to fit there :)
2012-04-25T12:09:29 < zyp> I didn't even put a pullup on my board, F4 have that internally
2012-04-25T12:12:39 < gsmcmullin> jpa-: You can reset by setting the SYSRESETREQ bit in the AIRCR.  This can be done over SWD.
2012-04-25T12:13:31 < jpa-> hmm, i've been using just the 'run' command
2012-04-25T12:13:31 < gsmcmullin> I have boards with the NRST pin not connected at all.
2012-04-25T12:13:35 < jpa-> but it doesn't always work
2012-04-25T12:13:50 < gsmcmullin> I guess that depends on your gdbserver.
2012-04-25T12:14:21 < jpa-> yep
2012-04-25T12:16:16 < zyp> and it doesn't work if the chip is doing something weird with the swd pins
2012-04-25T12:16:40 < zyp> keeping the chip in reset through nrst prevents that from happening
2012-04-25T12:17:50 < gsmcmullin> Why would the chip be doing weird things with the swd pins?
2012-04-25T12:18:13 < gsmcmullin> If you disable swd in software you'll need nrst to recover.
2012-04-25T12:18:47 < jpa-> maybe also if you go to standby without debug enabled?
2012-04-25T12:20:09 < gsmcmullin> maybe
2012-04-25T12:21:21 < zyp> probably
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2012-04-25T14:36:29 < TitanMKD> hi
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2012-04-25T16:46:48 < Laurenceb> http://www.google.com/url?sa=t&rct=j&q=resistor%20contact%20noise&source=web&cd=9&ved=0CFkQFjAI&url=https%3A%2F%2Fdcc.ligo.org%2Fpublic%2F0002%2FT0900200%2F001%2Fcurrent_noise.pdf&ei=zPyXT7mnEIqw0QXNtu3gBQ&usg=AFQjCNELohORkodPhFRGcCVkUfrvgjFiCw&cad=rja
2012-04-25T16:47:54 < zyp> you're so noisy
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2012-04-25T16:50:56 < Laurenceb> so are resistors
2012-04-25T16:51:03 < Laurenceb> according to that
2012-04-25T16:51:16 < Laurenceb> time to get some metal film
2012-04-25T16:53:20 < karlp> fucking google links. it's so hard to get a real link these days.
2012-04-25T16:53:27 < karlp> facebook and twitter are disgusting abusers as well
2012-04-25T16:54:01 < Laurenceb> yeah
2012-04-25T16:59:29 <+izua> i particularily like the pseudo-search engines that index searches
2012-04-25T17:00:13 <+izua> ddg (duckduckgo.com) has a neat "graybox" feature, which is, essentially, condensed information on some topic, before the actual links. works about half the time
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2012-04-25T20:17:04 < emeb> *crickets*
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2012-04-25T20:58:56 < Thorn> wtf, a NMI can execute while the cpu is in lockup?!
2012-04-25T20:59:28 < jpa-> non-maskable it is :)
2012-04-25T20:59:47 < jpa-> (though IIRC there is a lockup state where even NMI won't execute)
2012-04-25T21:00:48 < Thorn> I'm answering a question on electronics.stackexchange.com and the ARM ARM continues to be a treasure island
2012-04-25T21:02:19 < TitanMKD> I'm testing my Rigol DS1102E and for the price it is just fantastic !!
2012-04-25T21:02:55 < Thorn> the probes aren't, try looking at a 20MHz+ square wave
2012-04-25T21:02:59 < TitanMKD> It is so cool to upload data from Scope to PC too for storage or detailed analyzis ...
2012-04-25T21:03:15 < TitanMKD> Thorn i'm looking on 5.25Mhz ;)
2012-04-25T21:03:46 < TitanMKD> yes i will try 20Mhz square wave later anyway I have an other Probe which is a real 150Mhz probe ;)
2012-04-25T21:04:14 < Thorn> good for you
2012-04-25T21:04:29 < TitanMKD> Pomona probe are not so bad ;)
2012-04-25T21:05:02 < TitanMKD> let's check a NFC signal @ 13.56Mhz ;)
2012-04-25T21:05:37 < Thorn> there's apparently some russian (chinese produced) 100MHz/1Gs scope out there that can be "upgraded" to 200MHz
2012-04-25T21:06:26 < TitanMKD> wooo
2012-04-25T21:06:35 < TitanMKD> could be really great
2012-04-25T21:07:09 < Thorn> well the sample rate isn't going to change
2012-04-25T21:08:15 < TitanMKD> Do you know the hint to see in realtime the sample rate used ?
2012-04-25T21:08:35 < TitanMKD> to do not have time 50us but for example in addition 500MSPS
2012-04-25T21:09:05 < TitanMKD> Hehe for NFC it's great
2012-04-25T21:09:07 < Thorn> can't remember exactly, try the acquire menu maybe
2012-04-25T21:09:40 < TitanMKD> the sinus is very clean and 13.55Mhz instead of 13.56Mhz :)
2012-04-25T21:10:17 < Thorn> why does it continuously execute an instruction at 0xFFFFFFFE while in lockup? why not just stop?
2012-04-25T21:10:49 < TitanMKD> ?
2012-04-25T21:11:04 < Thorn> the cortex-m
2012-04-25T21:12:28 < TitanMKD> it's not a good addr ;)
2012-04-25T21:12:38 < TitanMKD> vector table start at 0x0 IIRC
2012-04-25T21:13:39 < TitanMKD> haha really cool 1/DeltaX detect the subcarrier @ 105Khz ;)
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2012-04-25T22:32:42 < Thorn> arm.com knowledge base: "Cortex-M3 halts all activity (instruction fetching and execution)..."; ARM ARM: "The processor repeatedly fetches the same instruction, from a fixed address, the Lockup address..."
2012-04-25T22:47:27 < Thorn> at least it's clearer now why gdb sometimes says 0xfffffffe in ?? ()
2012-04-25T22:52:32 < Laurenceb_> "the Lockup address"
2012-04-25T22:52:42 < Laurenceb_> is that what its actually called?
2012-04-25T22:53:08 < Thorn> yes, multiple times
2012-04-25T22:53:14 < Laurenceb_> lol
2012-04-25T22:53:24 < Laurenceb_> i get that problem with blank chips
2012-04-25T22:53:35 < Laurenceb_> that havent been programmed with anything
2012-04-25T22:53:41 < Thorn> right, because reset ix 0x0
2012-04-25T22:53:44 < Thorn> is
2012-04-25T22:54:43 < Thorn> actually there seems to be a reason behind it. if there was a bus fault the lockup address will be the address where the bus fault happened
2012-04-25T22:55:02 < Thorn> and if the fault clears lockup will auto-clear also
2012-04-25T22:55:08 < Thorn> so it's a retry mechanism
2012-04-25T22:56:24 < Thorn> I want to go to a conference with ARM engineers attending and ask them "hey ARM, are you sure you designed a microcontroller?"
2012-04-25T23:03:36 < jpa-> they didn't.
2012-04-25T23:06:10 < Thorn> well you can say they adapted what they had but still cortex-m is aimed at microcontrollers
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2012-04-25T23:14:20 < Thorn> wait. what the reset vector would be in a blank chip? 0 or 0xFFFFFFFF?
2012-04-25T23:14:42 < Thorn> unprogrammed flash would be all 1s, no?
2012-04-25T23:14:47 <+dekar> Thorn, I'd assume FFF...
2012-04-25T23:16:01 < Thorn> so it's not an even reset vector lockup, it's a bus fault or something since address 0xFFFFFFFF most likely doesn't exist
2012-04-25T23:17:04 < Thorn> "B1.5.15 Unrecoverable exception cases ..... This fault can autocorrect if the bus fault is transitory."
2012-04-25T23:17:15 < Thorn> so some unrecoverable faults are recoverable.
2012-04-25T23:40:20 <+dekar> lol
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2012-04-26T01:43:44 < emeb> any stlink gurus around?
2012-04-26T01:44:14 < zyp> what level of guru?
2012-04-26T01:45:19 < emeb> someone who has a clue what's going on inside the stlink-common code.
2012-04-26T01:45:43 < zyp> then I'll pass :)
2012-04-26T01:45:53 < emeb> thanks anyway.
2012-04-26T01:46:44 < emeb> I have a workaround to get stlink-karlp/flash working - requires two programming passes and a hand reset though.
2012-04-26T01:47:15 < emeb> just wondering if anyone could postulate why that is necessary...
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2012-04-26T03:17:40 < cjbaird> I just had to bin a 40x4 LCD display... ;_;
2012-04-26T03:32:33 <+dekar> hd44780? at least those are cheap
2012-04-26T03:40:05 < cjbaird> ...relatively
2012-04-26T03:41:18 <+dekar> I bought a ton of the small ones for 1€ each
2012-04-26T03:42:34 < cjbaird> They were pulled?
2012-04-26T03:43:45 <+dekar> nope, new
2012-04-26T03:44:12 < cjbaird> sauce plz
2012-04-26T03:44:48 <+dekar> http://www.ebay.de/itm/HD44780-1602-LCD-Module-Display-Anzeigen-2X16-Zeichen-/110852770923?pt=Bauteile&hash=item19cf570c6b#ht_2464wt_1156
2012-04-26T03:44:51 <+dekar> ebay :)
2012-04-26T03:46:46 < cjbaird> 16x2 are cheap. It's the 40x4 I'm after-- those start at 20E... (AU$45 new from Farnell..)
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2012-04-26T03:47:30 <+dekar> yeah like I said, I got the small ones
2012-04-26T03:47:50 <+dekar> I also got some 20x4 I think
2012-04-26T03:48:07 <+dekar> they were also pretty cheap
2012-04-26T03:48:13 < cjbaird> ...and I just had to bin a second 40x4 ;_: ... (I got them from a electronics flea market for $2 each...because they were covered in hotglue.
2012-04-26T03:48:57 < cjbaird> Most would be 5VDC parts.. I had to order from Farnell a 3VDC display.
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2012-04-26T03:53:54 <+dekar> AU$45 sounds really expensive for a character display, why don't you get some graphic lcd?
2012-04-26T03:54:44 < cjbaird> This was for a MSP430, with like 2kB of Flash.
2012-04-26T03:56:42 <+dekar> hm okay :/
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2012-04-26T03:57:24 < cjbaird> Kinda limited on the pretty graphics there. :)
2012-04-26T04:17:22 < emeb> Aha! Figured out why the stlink flash proggy is failing to verify!
2012-04-26T04:18:11 < emeb> My code uses DMA to read the ADC into SRAM. Looks like the DMA is overwriting the flash data during programming.
2012-04-26T04:18:44 < emeb> So, somehow we need to reset & disable all DMA peripherals prior to running the flash operation.
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2012-04-26T06:10:32 < cjbaird> Hayes-compatible? :)
2012-04-26T06:11:58 < cjbaird> It'd be an acoustic-coupler kind of deal, I expect..
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2012-04-26T12:34:15 < karlp> emeb: interesting issue.  the connection code when it makes the usb connection is meant to force the chip into debug, can't think of why the dma would still be running, but some nice debugging.
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2012-04-26T15:08:25 < Laurenceb> lol my supervisor was just meeting with ST to discuss custom asic versions of my spectrometer project
2012-04-26T15:08:45 < Laurenceb> ST suggested keeping with STM32
2012-04-26T15:09:08 < zyp> why custom asic?
2012-04-26T15:10:32 <+Steffanx> Ofcourse ST suggests to stay with STM32 ..
2012-04-26T15:11:10 <+Steffanx> Ask Atmel and they say you should use use their AVR32 or ARM-family
2012-04-26T15:12:10 < zyp> Steffanx, ST have fabs, so they can do custom asic
2012-04-26T15:12:34 < Laurenceb> yes, thats what the meeting was about
2012-04-26T15:12:43 < zyp> but I'm wondering what the benefits of that would be
2012-04-26T15:12:46 < Laurenceb> but ST thought the whole idea was stupid
2012-04-26T15:12:50 <+Steffanx> :)
2012-04-26T15:13:05 < zyp> that's the first thing I thought too, because I can't imagine any benefits :p
2012-04-26T15:13:22 <+Steffanx> How's it going with it anyway Laurenceb ?
2012-04-26T15:13:26 < Laurenceb> i think its called ripping off funding agencies
2012-04-26T15:13:39 < Laurenceb> chasing down noise sources...
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2012-04-26T16:26:08 < Laurenceb> http://www.jann.cc/404.html
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2012-04-26T16:39:54  * Laurenceb managed to get nemiver to connect to discovery board
2012-04-26T16:40:01 < Laurenceb> but i cant restart
2012-04-26T16:40:10 < Laurenceb> "unable to restart remote inferior"
2012-04-26T16:41:00 < zyp> did you use extended-remote?
2012-04-26T16:41:17 < corecode> go to china for ASICs
2012-04-26T16:46:50 <+Steffanx> me followed zyp s (good) example and bought a Black Magic Probe :)
2012-04-26T16:47:26 < Laurenceb> zyp: i dont know, good question
2012-04-26T16:48:53 < Laurenceb> i cant see that in the config anywhere
2012-04-26T16:50:50 < zyp> Laurenceb, well, I'm guessing that the restart-ability is part of the extended-part
2012-04-26T16:54:46 < Laurenceb> yeah
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2012-04-26T20:42:27 <+Steffanx> ^^ dongs
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2012-04-26T23:40:02 <+Steffanx> tavish is in the mood
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2012-04-27T08:52:05 < cjbaird> A problem linking  for a STM32F4-Discovery ... "gcc -o foo.elf foo.o $(BLAH) $(CFLAGS=-mcpu=cortex-m3 -mthumb -mfix-cortex-m3-ldrd -march=armv7)" creates a correct file; however "gcc -o foo.elf foo1.o foo2.o foo3.o $(BLAH) $(CFLAGS)" gets me those nasty "blx" instructions everywhere. WWWWWHHHHYYYY?
2012-04-27T08:53:38 < jpa-> so difference is that you have more files to link?
2012-04-27T08:53:50 < dongs> ne chat
2012-04-27T08:53:53 < jpa-> check if any of foo*.o contain the blx already :)
2012-04-27T08:54:34 < cjbaird> jpa-: yep.
2012-04-27T08:54:49 < cjbaird> Nope, all the *.o's are clean (checked with objdump -d)
2012-04-27T08:55:07 < cjbaird> The linker is munging the instructions..
2012-04-27T08:57:10 < cjbaird> I've noticed that it's only to the external code, not to the function within the same object.
2012-04-27T08:57:53 < gsmcmullin> cjbaird: It's linking to ARM mode libraries.
2012-04-27T08:57:59 < ziph> cjbaird: It's probably creating ARM<->THUMB trampolines unnecessarily.
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2012-04-27T09:09:23 < zyp> cjbaird, move the cflags in front
2012-04-27T09:13:20 < cjbaird> Still getting them..
2012-04-27T09:14:22 < cjbaird> The libopencm3 libraries look good now. It's appearing to calls in libiberty.a
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2012-04-27T09:15:07 < cjbaird> (so, the libraries is configure/compiled to whatever summon-arm-toolchain.sh did)
2012-04-27T09:22:47 < zyp> summon-arm-toolchain usually builds several versions of the libraries, no?
2012-04-27T09:30:14 < cjbaird> Okay, changing from /usr/local/arm-none-eabi/lib to /usr/local/arm-none-eabi/lib/thumb (the blx-less thumb1 libraries) gets me a bit more joy... (It makes it past the malloc..)  Only a few "blx r3" instructions left.
2012-04-27T09:33:18 < zyp> try removing the march flag
2012-04-27T09:33:43 < zyp> I suspect that it might be overriding the others
2012-04-27T09:35:16 < zyp> oh, and -mfix-cortex-m3-ldrd is apparently enabled by default when you use -mcpu=cortex-m3
2012-04-27T09:35:26 < zyp> so that's kind of unnecessary
2012-04-27T09:36:20 < zyp> and if you still insist on using march, use the right one :p
2012-04-27T09:36:31 < zyp> it's armv7-m, not armv7
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2012-04-27T09:45:55 < cjbaird> "insisting" == "it's what I got to work, and was too scared to change" :)
2012-04-27T09:47:04 < cjbaird> Can't seem to get the right libraries from cflags; having to explictly set with $(LIBS)/thumb does it regardless.
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2012-04-27T09:51:28 < zyp> are you specifying /usr/local/arm-none-eabi/lib in LIBS?
2012-04-27T10:03:24 < jpa-> cjbaird: you don't have a thumb2 folder?
2012-04-27T10:03:31 < cjbaird> Yep. Excluding it brings back the blx in force.
2012-04-27T10:04:38 < cjbaird> I checked thumb2, and its libraries were blx'd..  (although only "blx r3" ... that's safe?)
2012-04-27T10:04:47 < jpa-> yes
2012-04-27T10:05:01 < jpa-> thumb2 has blx <register>, but not blx <immediate>
2012-04-27T10:12:31 < jon1012> what do you guys recommend as a cheap but high speed mcu in the stm32 family ?
2012-04-27T10:12:41 < jon1012> (high speed as in more than 70 mhz)
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2012-04-27T11:02:10 < dongs> holy fuck, whoever wrote stm32flash should just /quit life as a developer
2012-04-27T11:02:18 < dongs> ive never seen so much nasty lunix-like code in one place
2012-04-27T11:02:46 < dongs> it might be easier to just rewrite the shit from scratch than clean it up trying to build on a real OS
2012-04-27T11:04:04 < zyp> jon1012, more than 70 as in 72?
2012-04-27T11:05:20 < zyp> i.e. the entire F103 range?
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2012-04-27T11:17:21 < dongs> i cant believe how much garbage gcc allows getting away with
2012-04-27T11:17:34 < dongs> stm = (stm32_t *)calloc(sizeof(stm32_t), 1); shit like this without casting calloc()
2012-04-27T11:17:37 < dongs> all over hte place
2012-04-27T11:17:56 < gsmcmullin> dongs: if you don't like it, don't use it.
2012-04-27T11:18:06 < dongs> or shit like... void *storage as arg, then hex_t *st = storage;.............................................
2012-04-27T11:18:09 < zyp> stm32_t?
2012-04-27T11:18:14 < dongs> zyp: some struct.
2012-04-27T11:18:28 < dongs> zyp: irrelevant, calloc() returns void *
2012-04-27T11:19:51 < zyp> doesn't the C-spec say something about implicit cast of void pointers?
2012-04-27T11:20:07 < dongs> no idea bro, i'm using the most standards compliant compiler available,  the one in visual studio
2012-04-27T11:20:20 < dongs> here's another fun one
2012-04-27T11:20:34 < dongs> void *data; int somectr = blah; data += somectr;
2012-04-27T11:20:39 < dongs> size of void is unknown...
2012-04-27T11:20:45 < zyp> wat, I heard the C support in visual studio was pretty limited
2012-04-27T11:20:47 < dongs> so that shit never works correctly
2012-04-27T11:21:01 < zyp> oh, yeah
2012-04-27T11:21:16 < zyp> no compiler should accept that
2012-04-27T11:21:21 < dongs> well, it does.
2012-04-27T11:21:25 < dongs> parser_err_t binary_read(void *storage, void *data, unsigned int *len)
2012-04-27T11:21:29 < dongs> note :storage, data
2012-04-27T11:21:31 < zyp> I can't imagine gcc does
2012-04-27T11:21:33 < dongs> data += r;
2012-04-27T11:21:41 < dongs> r is "int r;"
2012-04-27T11:21:50 < dongs> dunno, i just checked out stm32flash and thats the code in latest svn
2012-04-27T11:22:08 < zyp> wtf, where is it hosted?
2012-04-27T11:22:16 < dongs> http://code.google.com/p/stm32flash/source/checkout
2012-04-27T11:22:18 < dongs> google code.
2012-04-27T11:22:23 < zyp> found it
2012-04-27T11:22:27 < cjbaird> dongs: If you don't like using free software, don't use an IRC server dedicated to free software. :P :)
2012-04-27T11:22:37 < gsmcmullin> GCC supports arithmetic on void*.  It's documented.
2012-04-27T11:22:52 < gsmcmullin> In GNU C, addition and subtraction operations are supported on pointers to void and on
2012-04-27T11:22:55 < gsmcmullin> pointers to functions. This is done by treating the size of a void or of a function as 1.
2012-04-27T11:23:10 < dongs> why bother limiting potentially useful software to onyl be compileable by gcc?
2012-04-27T11:23:21 < dongs> i'm not mentioning other crap like variable declaration not at top of scope etc.
2012-04-27T11:23:37 < dongs> code is full of that
2012-04-27T11:23:38 < gsmcmullin> They don't need to be in c99
2012-04-27T11:23:59 < dongs> thats very nice
2012-04-27T11:24:40 < dongs> the project tagline is a fucking lie then
2012-04-27T11:24:41 < dongs> "Open source cross platform flash program for the STM32 bootloader "
2012-04-27T11:24:49 < dongs> its not c rossplatform if its only buildable by GCC.
2012-04-27T11:25:10 < gsmcmullin> I'll build you a windows binary without modifying the code.
2012-04-27T11:25:13 < dongs> ...
2012-04-27T11:25:14 < zyp> except that gcc can build on a lot of platforms
2012-04-27T11:25:39 < dongs> zyp: none relevant
2012-04-27T11:25:58 < gsmcmullin> dongs: it even supports your beloved windows
2012-04-27T11:26:00 < dongs> i dont even know how im going to fix the dumb void arithmetic.
2012-04-27T11:26:17 < dongs> im gonna get it to the point wehre it builds hten I'll start tearing out useless trash
2012-04-27T11:26:32 < gsmcmullin> http://www.blacksphere.co.nz/tmp/stm32flash.exe
2012-04-27T11:26:39 < dongs> dude, the point isnt about getting a .exe out of it
2012-04-27T11:26:47 < dongs> I want it built by a real compiler so I can debug/add stuff to it.
2012-04-27T11:27:02 < gsmcmullin> dongs: you don't have a real compiler
2012-04-27T11:27:07 < dongs> i do
2012-04-27T11:27:12 < cjbaird> "Free Software Developers aren't making it easy to make a quick buck! bawwww...."
2012-04-27T11:29:56 < dongs> hwo hte fuck does void * arithmetic even make sense
2012-04-27T11:30:06 < dongs> it looks at what it points to in the caller?
2012-04-27T11:30:18 < zyp> no, it's apparently treated as a char*
2012-04-27T11:30:23 < dongs> lol.
2012-04-27T11:30:44 < dongs> so not only is it dumb, its broken too.
2012-04-27T11:31:09 < dongs> lunix guys always add like 20 layers of abstraction over shit
2012-04-27T11:31:23 < dongs> so they end up passing void * everywhere and hten typecasting to shit they need.
2012-04-27T11:31:38 < dongs> which is even more broken since you can't get warned about proper safe types etc at compile time
2012-04-27T11:31:47 < zyp> gcc apparently supports it to support compiling broken code, and can be set to give a warning about it
2012-04-27T11:31:59 < dongs> well, back to my  original statement
2012-04-27T11:32:07 < dongs>  < dongs> holy fuck, whoever wrote stm32flash should just /quit life as a developer
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2012-04-27T11:33:25 < zyp> I suppose you're not interested in the python script I used, that does the same job :p
2012-04-27T11:37:38 < dongs>        since the bootloader does not have a reset command, we
2012-04-27T11:37:38 < dongs>        upload the stmreset program into ram and run it, which
2012-04-27T11:37:38 < dongs>        resets the device for us
2012-04-27T11:37:39 < dongs> orly?
2012-04-27T11:37:44 < dongs> isnt there a 'run' command?
2012-04-27T11:37:53 < dongs> which takes address....
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2012-04-27T11:39:51 < gsmcmullin> dongs: That's not the same as reset.
2012-04-27T11:42:34 < dongs> haha more fail....
2012-04-27T11:42:35 < dongs> extern unsigned int stmreset_length;
2012-04-27T11:42:35 < dongs> extern unsigned char stmreset_binary[];
2012-04-27T11:42:41 < dongs> except they're defined as const in the file with them...
2012-04-27T11:59:00 < zyp> is that a problem?
2012-04-27T12:00:08 < zyp> at worst you'll get a runtime error instead of a compile time error, if you try writing them
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2012-04-27T12:31:47 < dongs> zyp: since I renamed *.c to *.cpp
2012-04-27T12:31:53 < dongs> to deal with variables outside of scope shit
2012-04-27T12:31:56 < dongs> now it is a problem
2012-04-27T12:32:24 < karlp> why are you trying to reuse some open source shit flash thing anyway?
2012-04-27T12:32:29 < zyp> globals don't get mangled?
2012-04-27T12:32:33 < karlp> don't your fancy tools that you paid for provide that kind of thing?
2012-04-27T12:32:46 < dongs> karlp: nice rageblog
2012-04-27T12:32:50 < dongs> zyp: dunno, took out const and it works
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2012-04-27T12:33:58 < dongs> here comes the king blogger
2012-04-27T12:34:16 < cjbaird> \(^ ^)/ Babbys first non-trival STM32 code is working. (A 6502 simulator.)
2012-04-27T12:35:27 < zyp> how useful
2012-04-27T12:37:34 < cjbaird> A STM32F4 Discovery board is cheaper than buying an actual 6502 CPU... -_-
2012-04-27T12:37:36 < jpa-> ah, time to ignore dongs, despite all the confusion it will yield in form of non-sensical comments :)
2012-04-27T12:38:10 < Laurenceb_> sup
2012-04-27T12:38:29 < cjbaird> Maybe tomorrow I'll get the 6502 G-Pascal system tested on it..
2012-04-27T12:38:36 < Laurenceb_> whats the difference between Breivik and Tony Blair?
2012-04-27T12:39:35 < Laurenceb_> Tony Blair is responsible for 116233 deaths..
2012-04-27T12:39:59 < zyp> Laurenceb_, yea, I heard he just went out and shot people
2012-04-27T12:40:06 < zyp> 77
2012-04-27T12:40:47 < Laurenceb_> its my new way to troll Tony Blair supporters XD
2012-04-27T12:41:06 < gsmcmullin> dongs: Have you made any open source contributions?
2012-04-27T12:41:44 < Laurenceb_> lol
2012-04-27T12:42:07 < gsmcmullin> You didn't answer the question.
2012-04-27T12:43:01 < Laurenceb_> heh - works fine for me
2012-04-27T12:43:21 < gsmcmullin> Care to share?  If you're not contributing then your opinion really isn't important.
2012-04-27T12:43:57 < cjbaird> Personally, I'm a NetBSDfag. WHO WANTS SOME SHIT CODE THAT'S HAD EVEN FEWER DEVELOPERS WORKING ON IT?
2012-04-27T12:48:17 < cjbaird> I've also had my old 486 laptop blessed my Saint IGNUcius, and bought chocolate milk for rms. :)
2012-04-27T12:53:27 < cjbaird> Re: the 6502 sim. What would really be useful is a 65C816 sim, as mates of mine have build a board using it, but they're mired on the software side of things (no native toolchain..)
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2012-04-27T13:08:09 < cjbaird> I WROTE THAT CODE!
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2012-04-27T13:21:54 <+Steffanx> Nice code :)
2012-04-27T13:25:55 <+Steffanx> Bad joke Laurenceb … bad joke
2012-04-27T13:26:10 <+Steffanx> (/me responds to something from an hour ago :) )
2012-04-27T13:31:47 < zyp> das projekt
2012-04-27T13:31:58 <+Steffanx> haha?
2012-04-27T13:32:10 <+Steffanx> Look like a nice project to me
2012-04-27T13:32:26 <+Steffanx>  /shit/stuff
2012-04-27T13:33:18 <+Steffanx> Do you have a project website dongs ?
2012-04-27T13:34:16 <+Steffanx> schade
2012-04-27T13:39:21 <+Steffanx> Whaat?
2012-04-27T13:39:25 <+Steffanx> Linux?
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2012-04-27T13:42:45 <+Steffanx> You should write functions like dong_forces_you_to_….
2012-04-27T14:58:30 < Laurenceb> http://www.theregister.co.uk/2012/04/27/steve_bong_coding_youth/
2012-04-27T14:58:32 < Laurenceb> pmsl
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2012-04-27T18:19:21 < cjbaird> "objcopy --input binary --output elf32-littlearm --binary-architecture arm ram.bin ram.o" ...doesn't produce a file that the linker will accept (missing .ARM.attributes, wrong arch flags, etc.) Does anyone know of a solution or work-around?
2012-04-27T18:20:10 < karlp> what are you even trying to do?
2012-04-27T18:20:21 < karlp> turn a ram dump into opcodes or something?
2012-04-27T18:22:21 < cjbaird> That'll make an elf objject file with an external called  _binary_ram_bin_start, which'll go into .data, and give me a nicely preset array-- saves having to convert the binary image into header data, copying it from flash during initalization, etc.
2012-04-27T18:23:00 < cjbaird> It /works/ on other architectures... :p
2012-04-27T18:23:05 < cjbaird> stupid arm :)
2012-04-27T18:25:44 < cjbaird> tl;dr -- it copies ram.bin into RAM automatically when uploading the elf
2012-04-27T18:28:36 < karlp> it wasn't too long to read man :)
2012-04-27T18:29:10 < karlp> doen't you have a startup script that sets up .data anyway?
2012-04-27T18:29:32 < karlp> or does this simply mean that you don't use up flash space storing the data as well as ram space?
2012-04-27T18:34:24 < zyp> he says he want to link a binary file into a flash section without having to pipe it through a compiler
2012-04-27T18:35:19 < cjbaird> into the .data/ram section
2012-04-27T18:35:54 < cjbaird> Usually, the objcopy way above is how you do it..
2012-04-27T18:35:57 < zyp> yep
2012-04-27T18:36:11 < karlp> ok, fair enough :) I'm only used to seeing a makefile step that makes a .h file
2012-04-27T18:36:21 < zyp> cjbaird, but the linker doesn't accept it when it's missing the metadata sections?
2012-04-27T18:37:52 < cjbaird> "ld: error: ram.o: Conflicting CPU architectures 13/0" ... using readelf -h (and from what's been said in a google search), the architecture flags in the header are bad (0x0 instead of whatever it should be)
2012-04-27T18:38:32 < cjbaird> ..and there doesn't seem to be an option to objcopy to add/set that particular header flag. :/
2012-04-27T18:38:53 < zyp> I'll give it a try here
2012-04-27T18:39:01 < cjbaird> "--binary-architecture" has a choice between arm... and arm
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2012-04-27T18:49:08 < cjbaird> Looks like I can copy the .ARM.attributes section from another object file, and then add the binary data..
2012-04-27T18:49:22 < zyp> I don't think that's the problem
2012-04-27T18:49:40 < cjbaird> arm-none-eabi-objcopy  --only-section  .ARM.attributes main.o ram.o; objcopy --add-section=.data=ram.bin ram.o ...  (does it work?)
2012-04-27T18:49:53 < cjbaird> linker doesn't complain.
2012-04-27T18:49:58 < zyp> I ran objcopy with --alt-machine-code=40 here, that got the machine right at least
2012-04-27T18:51:51 < zyp> but it probably have to get the flags right too, and I can't find an option for that
2012-04-27T18:57:48 < zyp> actually, the best way is probably just to make a .s file and use the .incbin directive
2012-04-27T18:58:47 < zyp> hmm
2012-04-27T18:59:06 < zyp> you can probably do that as inline assembly aswell
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2012-04-27T19:03:15 < zyp> http://lkml.indiana.edu/hypermail/linux/kernel/0509.3/0070.html <- somebody apparently did that somewhere in the linux source aswell
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2012-04-27T19:11:18 < cjbaird> Sigh, will have to try that..
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2012-04-27T19:40:44 < TitanMKD> hi
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2012-04-27T19:52:15 <+Steffanx> Lo TitanMKD
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2012-04-27T22:16:19 < Laurenceb_> hi
2012-04-27T22:16:31 <+Steffanx> Lo
2012-04-27T22:16:35 < Laurenceb_> anyone know if the adc sample and hold cap is discharged after each conversion?
2012-04-27T22:17:00 < Laurenceb_> i have a nutty idea involving directly connecting to a photodiode
2012-04-27T22:17:23 < zyp> < Laurenceb_> i have a nutty idea
2012-04-27T22:17:30 < zyp> that's how I usually read you
2012-04-27T22:17:33 < Laurenceb_> lol
2012-04-27T22:17:36 <+Steffanx> lol
2012-04-27T22:17:58 < Laurenceb_> photodiode on adc pin, charge it up by setting pin to output logic high
2012-04-27T22:18:02 <+Steffanx> His ideas are great, but maybe don't work out very well sometimes
2012-04-27T22:18:06 < Laurenceb_> then convert
2012-04-27T22:18:26 < Laurenceb_> - set pin as analogue then convert rather
2012-04-27T22:18:46 < Laurenceb_> photocurrent causes a decrease in voltage from 3.3v
2012-04-27T22:19:08 < Laurenceb_> ill have to try this
2012-04-27T22:21:28 < Laurenceb_> looks like the stm uses a charge based sar
2012-04-27T22:23:46 <+Steffanx> whatever
2012-04-27T22:23:59 < Laurenceb_> http://en.wikipedia.org/wiki/Successive_approximation_ADC#Charge-redistribution_successive_approximation_ADC
2012-04-27T22:24:08 < Laurenceb_> if it uses the firts sort it wont work
2012-04-27T22:24:14 < Laurenceb_> it will if it uses the second
2012-04-27T22:25:37 <+Steffanx> and then… what's the plan with the photodiode?
2012-04-27T22:36:44 < Laurenceb_> looks like i need a buffer
2012-04-27T22:37:02 < Laurenceb_> datasheet says up to 1uA leakage on analogue pins, that would mess it up
2012-04-27T22:45:46 < jpa-> why not just use a pull-up resistor :P
2012-04-27T22:57:35 < Thorn> trivia question: Reset_Handler: /* ... */ bl  main; bx  lr   <- where does it return?
2012-04-27T22:58:01 <+Steffanx> me doesn't know thumb2 stuff
2012-04-27T23:00:31 < jpa-> Thorn: infinite loop?
2012-04-27T23:00:46 < Thorn> the point is, Reset_Handler isn't called by a bl, so what's  in lr then?
2012-04-27T23:01:08 < jpa-> it's overwritten by   bl main  anyway
2012-04-27T23:03:22 < zyp> huh?
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2012-04-27T23:03:51 < zyp> bx lr is a jump to the address contained in lr
2012-04-27T23:04:16 < zyp> when you use bl the old contents of pc is stored in lr
2012-04-27T23:04:39 < zyp> so bl is a call and bx lr is a return
2012-04-27T23:05:29 < zyp> or are you asking about what the initial value of lr is?
2012-04-27T23:05:51 < zyp> whatever it is, I don't think you'll want to return to it. :p
2012-04-27T23:06:55 < Thorn> "A reset sets this register (lr) to 0xFFFFFFFF. The reset value causes a fault condition if the processor uses it when
2012-04-27T23:06:55 < Thorn> attempting a subroutine return."
2012-04-27T23:07:04 < Thorn> ^^ A2.3.1
2012-04-27T23:07:04 < Laurenceb_> which stm32s have analogue comparators?
2012-04-27T23:07:13 <+Steffanx> none afaik
2012-04-27T23:07:19 < Laurenceb_> i thought some did
2012-04-27T23:07:55 < zyp> Thorn, exactly
2012-04-27T23:08:08 <+Steffanx> F0 seems to have them Laurenceb_
2012-04-27T23:08:17 < Thorn> I think stm32L have those
2012-04-27T23:08:18 < Laurenceb_> ah
2012-04-27T23:08:41 <+Steffanx> and L indeed
2012-04-27T23:09:00 <+Steffanx> Those weren't around when i needed a comparator :p
2012-04-27T23:10:13 < jpa-> yeah, L has those
2012-04-27T23:10:40 <+Steffanx> We need someone else to confirm :)
2012-04-27T23:11:06 < zyp> and someone to read the errata
2012-04-27T23:11:13 <+Steffanx> Ha
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2012-04-27T23:42:28 < Laurenceb_> ooh nice - comparator has switchable pull resistors
2012-04-27T23:44:21 < jpa-> probably quite inaccurate
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2012-04-27T23:59:12 < Laurenceb_> good enough for photodiodes
--- Day changed Sat Apr 28 2012
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2012-04-28T00:48:00 < Laurenceb_> why are there no comparator leakage current specs?
2012-04-28T00:49:48 <+Steffanx> Get some fancy equipment and measure it yourself :)
2012-04-28T00:50:29 < Laurenceb_> indeed
2012-04-28T00:51:29 < Laurenceb_> oh i see - +-50nA max
2012-04-28T00:51:48 <+Steffanx> Where you read that?
2012-04-28T00:51:56 < Laurenceb_> stm32l ref manual
2012-04-28T00:52:02 < Laurenceb_> i mean datasheet
2012-04-28T00:52:59 <+Steffanx> I/O port characteristics?
2012-04-28T00:53:03 < Laurenceb_> yes
2012-04-28T00:54:41 <+Steffanx> but does that also apply to the comparator inputs?
2012-04-28T00:55:07 < Laurenceb_> i think so
2012-04-28T00:55:14 < Laurenceb_> they are analogue inputs
2012-04-28T00:57:17 <+Steffanx> "i think so" :P
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2012-04-28T05:08:07 < cjbaird> Re: the attempts to get a ram image automagically loaded into the .data section of an ELF.. I've ended up toggling the ram in from gdb (which'll make things quicker for testing..)   "gdb> load ram.o 0x200010d4"  uploads at ~80kB/sec, too. :)
2012-04-28T05:09:35 < cjbaird> Unfortunately, it won't take symbols as a load offset ("load ram.o &rawmemory)
2012-04-28T05:11:47 < cjbaird> It is however happy with loading in 'wrong architecture' ELFs, like objcopy makes.
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2012-04-28T06:15:28 <+izua> heh
2012-04-28T06:15:50 <+izua> i wonder if anyone actually posted results on attempting to exploit the bug
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2012-04-28T06:30:23 < cjbaird> It figures that dongs is keen on stealing other people's code. :)
2012-04-28T06:30:30 < cjbaird> YOU LOVE THAT DON'
2012-04-28T06:30:32 < cjbaird> T YOU
2012-04-28T06:31:51 < cjbaird> Currently playing around with linker scripts; for my purposes, I could munge the .data/.bss start to 0x20010000, reserving the first 64kB block for my needs..
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2012-04-28T06:37:05 < gsmcmullin> cjbaird: What exactly are you trying to achieve?  You can also pass -Tdata=org on the command line.
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2012-04-28T06:43:30 < cjbaird> flyback: got an online reference for the mediatek drive hacking?
2012-04-28T06:50:20 < cjbaird> I've got a number of Z180-based dial-up modems that I've 'repurposed'. :)
2012-04-28T06:57:52 < cjbaird> One of the modems is now running MSBASIC (and FIG-FORTH).. Dunno if that's an accomplishment or not.
2012-04-28T06:59:02 < cjbaird> ..which allowed it to play the old 'Super Star Trek' game..
2012-04-28T07:01:40 < cjbaird> flyback: I lucked-out and scored a pile of Dallas 32kB NVRAMs. No, you can't have any.
2012-04-28T07:05:09 < cjbaird> I have had a couple of the 'piggyback' style SRAM Dallas thingies die on me, but the DS1230's are still all good.. so far.
2012-04-28T07:14:11 < cjbaird> Much the same thing happened when trying to recover the 40x4 LCDs the other day. (except with fucking hot-glue..)
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2012-04-28T08:20:45 < cjbaird_away> Old Nokias aren't hard to come by. You find them in the street, usually. :)
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2012-04-28T09:17:04 < cjbaird> multilayer?
2012-04-28T09:25:26 < cjbaird> When I don't have to worry about crushing anything inside a multilayer board, I've got an "Adel" nibbler tool that cuts through PCB rather nicely. (I haven't used it to carve up a board for that purpose yet though.)
2012-04-28T09:26:03 < cjbaird> It's a relatively expensive bit of kit (AU$50) though.. :/
2012-04-28T09:27:23 < cjbaird> Most of what I've used it for has been to cut up vero/stripboard, but it's done a good job of that..
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2012-04-28T11:31:29 < ziph> 30% taxes on $9.90 is $12.87.
2012-04-28T11:31:47 < ziph> Or $1.287 per board.
2012-04-28T11:32:42 < ziph> That's less than the price of a box of condoms.
2012-04-28T11:32:52 < ziph> And since you're clearly not getting laid, you should have the cash.
2012-04-28T11:33:43 < ziph> Except for healthcare.
2012-04-28T11:33:58 < ziph> (Including psychiatric.)
2012-04-28T11:34:56 < ziph> You've never seen his opinion?
2012-04-28T11:38:57 < cjbaird> Outs you as a 4channer, at least.
2012-04-28T11:42:33 < cjbaird> flyback: but it also means you're trying to piss into a ocean of piss trying to get a reaction out of him..
2012-04-28T11:44:11 < ziph> Because he's a masterbaiter?
2012-04-28T11:44:41 < ziph> flyback: You care what everyone things.
2012-04-28T11:44:43 < ziph> thinks.
2012-04-28T11:45:39 < ziph> Otherwise you wouldn't rabbit on about whatever you're doing in whichever channel you happen to be in.
2012-04-28T11:49:14 < cjbaird> sure. I admin a freenet ISP, and there's old hardware everywhere, including drives that came with the system but've never been used...
2012-04-28T11:51:06 < cjbaird> https://secure.flickr.com/photos/chris_j_b/2870993787/
2012-04-28T11:51:23 < cjbaird> https://secure.flickr.com/photos/chris_j_b/2871232949/
2012-04-28T11:54:01 < cjbaird> fwiw, a 168MHz STM32F4 simulates a 2.5MHz 6502... (got EhBASIC running)
2012-04-28T11:56:24 < cjbaird> Certainly the possibility of a 'Fignition' type project (..that everyone's doing now). Noticed an mbed project the other day that sims a BBC Model B, including video.
2012-04-28T12:05:15 < cjbaird> No, that one in the photo is a TRS80 Model III, cassette model. The power supply lost it two years back, and I'm just keeping the motherboard and keyboard now.
2012-04-28T12:05:49 < cjbaird> I did have a Model III + FDD + serial port before that (..but that one caught on fire ;_;)
2012-04-28T12:07:13 < cjbaird> What model IIc?
2012-04-28T12:07:25 < cjbaird> s/model/revision/
2012-04-28T12:07:36 < cjbaird> There was the IIc, and the IIc+
2012-04-28T12:07:49 < cjbaird> c+'s are _very_ vaulable.
2012-04-28T12:08:36 < cjbaird> I'd put my hand up for the IIc, but postage to AU would be a killer..
2012-04-28T12:11:16 < cjbaird> irc.a2central.com, #a2c.chat, "HAY GUISE WHO WANTS A IIC??? FREE FOR MANTOUCHING! ...no it isn't a ][c+..."
2012-04-28T12:15:22 < cjbaird> The mbed is a regular Cortex-M3? .. I might do a dongs, and check their site out for code I can steal.
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2012-04-28T12:20:16 <+Steffanx> nu
2012-04-28T12:20:29 <+Steffanx> wb flyback
2012-04-28T12:25:01 <+Steffanx> ok
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2012-04-28T12:47:51 < cjbaird> Freescale have a new "CUBE" eval board for $20 coming out.. (trying to find details..) /Everyone/ wants in on the cheap board scene now. :)
2012-04-28T12:50:34 <+Steffanx> where where
2012-04-28T12:50:44 <+Steffanx> ( don't let dongs hear what you just said)
2012-04-28T12:51:43 < cjbaird> http://au.element14.com/freescale-semiconductor/mma9559lkube/eval-board-cube-mma9559l/dp/2079450 ... bugger-all details there, though.
2012-04-28T12:52:02 <+Steffanx> 20$ you said? :P
2012-04-28T12:52:04 < cjbaird> err, make that $40..
2012-04-28T12:52:23 <+Steffanx> Farnell/element14 taxes probably
2012-04-28T12:54:50 < cjbaird> ...but I live about 3 kilometres from their Australian warehouse :) ... There's the occassional good deal from them, too. (msp430 launchpad boards for actual RRP, not the 2xRRP that every other store in Oz sells them for..)
2012-04-28T12:55:52 <+Steffanx> This MMA9559L is a microcontroller + accelerometer in one package?
2012-04-28T12:57:26 <+Steffanx> closed sores :D :D :D
2012-04-28T12:58:00 <+Steffanx> dongs really is a professional troll
2012-04-28T12:58:24 < cjbaird> 'lol central servers'. It Would Be A Pity if someone were to target them for a bit with LOIC...
2012-04-28T13:00:36 <+Steffanx> windows huh?
2012-04-28T13:03:25 < cjbaird> I've got a V2 board here.. Interest in that stalled when the trap to serial in/out didn't work as documented..
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2012-04-28T13:06:10 < Laurenceb_> no
2012-04-28T13:08:27 < Laurenceb_> buy direct from freescale
2012-04-28T13:09:08 < Laurenceb_> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MMA8451Q&tab=Buy_Parametric_Tab&nodeId=01126911184209&pspll=1&fromSearch=false
2012-04-28T13:09:24 <+Steffanx> 10k 0.92 each :P
2012-04-28T13:10:14 < Laurenceb_> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MMA8451Q&tab=Buy_Parametric_Tab&nodeId=01126911184209&pspll=1&fromSearch=false
2012-04-28T13:10:17 < Laurenceb_> oops
2012-04-28T13:10:29 < Laurenceb_> http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MMA8451Q&tab=Buy_Parametric_Tab&nodeId=01126911184209&pspll=1&fromSearch=false
2012-04-28T13:10:51 < Laurenceb_> wtf
2012-04-28T13:10:53 <+Steffanx> 3 times the same url?
2012-04-28T13:11:07 < Laurenceb_> sorry
2012-04-28T13:12:12 <+izua> one of those magic javascript protections?
2012-04-28T13:12:23 <+izua> right click -> copyright trollguy (c) do not steal our shit
2012-04-28T13:12:43 <+Steffanx> Everything is better than those google url you can't copy without their tracking shit
2012-04-28T13:12:45 <+izua> or when selecting and hitting ^c, you'd get: url copied from mysite \r\n [actual copied contents]
2012-04-28T13:13:01 <+Steffanx> *urls
2012-04-28T13:22:47 <+Steffanx> dongs is really into jews.. why?
2012-04-28T13:23:05 <+Steffanx> Was one in your previous life?
2012-04-28T13:24:41 < Laurenceb_> you could get the one with fewer adc bits
2012-04-28T13:24:45 < Laurenceb_> and oversample
2012-04-28T13:25:15 <+Steffanx> Or just, get some patience
2012-04-28T13:26:01 < Laurenceb_> yeah just waste several months
2012-04-28T13:26:07 <+Steffanx> 'waste'
2012-04-28T13:26:37 <+Steffanx> I don't know what you do, but when I order something I won't sleep behind the door to wait for the package Laurenceb_
2012-04-28T13:27:21 < Laurenceb_> lol wut
2012-04-28T13:27:48 <+Steffanx> I don't know what you do, but when I order something I won't sleep behind the door to wait for the package Laurenceb_
2012-04-28T13:29:25 <+Steffanx> hehe
2012-04-28T13:29:41 <+Steffanx> No alternatives?
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2012-04-28T14:51:48 <+Steffanx> Where do you use the flash for dongs ?
2012-04-28T14:52:50 < zyp> nonvolatile data storage, I guess
2012-04-28T14:53:12 < zyp> config settings, logs, whatever
2012-04-28T14:53:21 <+Steffanx> Yeah, but who cares about the small differences when it's just a small code change?
2012-04-28T14:54:12 < zyp> because you end up with a lot of extra code to support all kinds of them?
2012-04-28T14:54:42 <+Steffanx> Maybe, but that doesn't mean there no alternatives
2012-04-28T14:55:02 <+Steffanx> *there are
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2012-04-28T15:16:58 <+Steffanx> <dongs> need some analol'g electronics advice since im too dumb
2012-04-28T15:17:03  * Steffanx posts that on bash.org
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2012-04-28T21:57:43 < TitanMKD> hi
2012-04-28T21:59:26 < jpa-> hello
2012-04-28T22:15:43 <+Steffanx> Lo
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2012-04-28T23:31:29 < ratatata> nu
2012-04-28T23:33:35 <+Steffanx> nu!
2012-04-28T23:34:50 < ratatata> nu
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2012-04-29T08:08:52 < cjbaird> \(^ ^)/ ... https://plus.google.com/106353937620710166166/posts/gPNTuBwmwq6
2012-04-29T08:10:01 < cjbaird> (the 6502 sim actually working properly..)
2012-04-29T08:11:19 < cjbaird> The next thing to do really would be to bung some mass-storage device onto the 'f4, and then hook access to it into the sim.. Probably a SD card.
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2012-04-29T10:10:52 < cjbaird> As expected, the 65816 board guys want a sim for /their/ hardware :) ... That'll involve playing around with external ram interfacing to get the 512kB needed.
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2012-04-29T13:10:07 < ratatata> nu
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2012-04-29T14:12:45 <+Steffanx> nu
2012-04-29T14:19:07 <+Steffanx> It's Hi, howdy or whatever in Lithuanian iirc
2012-04-29T14:19:49 <+Steffanx> I just say it because ratatata says it and no one exactly knows what i means :)
2012-04-29T14:20:18 < ratatata> nu
2012-04-29T14:20:48 <+Steffanx> I could also say "moi" which is probably similar to "nu", but "moi" is really a local thing
2012-04-29T14:21:18 <+Steffanx> We "Moi" as in "Hello", but also as in "Good bye/see ya" :)
2012-04-29T14:22:20 <+Steffanx> We don't pronounce it like the french word "moi"
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2012-04-29T14:25:24 <+Steffanx> Satisfied dongs ?
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2012-04-29T14:48:14 < cjbaird> re
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2012-04-29T16:35:26 <+Steffanx> uh dongs ?
2012-04-29T16:36:04 <+Steffanx> M$ crap isn't it? :P
2012-04-29T16:39:00 <+Steffanx> That what you said ~1.5 hours ago
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2012-04-29T18:33:15 < cjbaird> Stop reading Slashdot. Over a Dozen RPi projects like that, but only the Advertsing Flogsite gets a mention..
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2012-04-29T18:44:33 < cjbaird> And they're not even needed, unless you're trying impress Arduinofags who want to see a Arduino Shield[tm]. The RPi has gpio headers, just made for a 24 pin IDC header socket..
2012-04-29T18:46:56 < zyp> ha
2012-04-29T18:50:23 < cjbaird> $20 bux
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2012-04-29T19:09:16 < cjbaird> If I were a Furry, $200 for drawings like would be about right...
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2012-04-29T19:33:36 < cjbaird> Short Shameful Confession: I actually used to be a Furry. That was back circa 1992, when it was just a alternative self-publish comic scene, before INTERNETS and 'the fursona fandom' appeared. Left in 1995 for good when no-one cared about selfpubs anymore, and it was all KWIK YIFF ON TAPESTRIES. Funny to think how much the old comics and APAs I've got would sell for today, but I've been chucking them in the bin. :D
2012-04-29T19:34:48 < cjbaird> in hell
2012-04-29T19:35:06 < karlp> nu
2012-04-29T19:35:19 < Thorn> the only good thing furry crowd ever produced: http://freefall.purrsia.com/ff300/fv00255.htm
2012-04-29T19:36:12 < cjbaird> much of the early channer hate on furries was my doing huehuehuehue. 'Caturday' came about from flooding their 'Furry Friday' posts...
2012-04-29T19:36:37 < cjbaird> Thorn: got a stack of Yarfs with Freefall..
2012-04-29T19:37:49 < cjbaird> (of course, the group from SomethingAwful on 'chan had a part in it as well)
2012-04-29T19:38:35 < cjbaird> 'Albedo' was my gateway drug.
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2012-04-29T20:51:57 <+Steffanx> nu
2012-04-29T20:52:01 < karlp> nu
2012-04-29T20:54:45 <+Steffanx> ratatata, not sure if i have to thank you for this...
2012-04-29T21:09:45 < Laurenceb_> http://www.youtube.com/watch?v=PSdo4e8EOWE
2012-04-29T21:09:52 < Laurenceb_> it couldnt get more epic than that
2012-04-29T21:20:52 < karlp> no, this is epic: http://imgur.com/gallery/9ZvIk
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2012-04-29T21:36:59 < Laurenceb_> interesting
2012-04-29T21:37:09 < Laurenceb_> im just looking at the stm32l touch sensor demo
2012-04-29T21:37:24 < Laurenceb_> it uses the input multiplexed on the adc for charge transfer
2012-04-29T21:37:30 < Laurenceb_> *multiplexer
2012-04-29T21:37:49 < Laurenceb_> between ref cap thats charged using gpio and the sensor key
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2012-04-29T21:48:28 <+Steffanx> Whaa, they stole your idea Laurenceb_ ?
2012-04-29T21:48:31 <+Steffanx> -?
2012-04-29T21:48:33 <+Steffanx> +!
2012-04-29T21:49:39 < Laurenceb_> looks like it - i want to do that same thing to interface photodiodes
2012-04-29T21:50:01 < Laurenceb_> they also use the comparitor, so yes its almost the same thing - code for the slider on smt32l-discovery
2012-04-29T21:50:45 <+Steffanx> Comparator :)
2012-04-29T21:50:58 < Laurenceb_> whatrever
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2012-04-30T03:05:32 < zyp> ok
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2012-04-30T05:19:18 < cjbaird> Not that you would guess given how their sites shows everything in Windows.
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2012-04-30T05:23:22 < cjbaird> "hurr we japanese spent a billion us dollar writing our own OSes back in the 1980s, were major contributors to BSD, but we standardized on an American operating system that made us use English for the first 10 years.. Yeah, Microsoft found it very easy to buy influence the japanese wa¥..."
2012-04-30T05:27:10 < cjbaird> The Koreans also did the same thing, but at least there was a popular protest when MS tried to force their favourite local wordprocessor off the market with dirty tricks.
2012-04-30T05:45:17 < cjbaird> That's what I said..
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2012-04-30T11:35:42 < zyp> likely
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2012-04-30T11:40:18 <+Steffanx> nu
2012-04-30T11:40:18 < zyp> better resolution for whatever it's used for?
2012-04-30T11:44:05 < zyp> yes.
2012-04-30T12:10:53 <+Steffanx> zlog
2012-04-30T12:10:53 < zlog> Steffanx: Log stored at http://tom-itx.dyndns.org:81/~tom-itx/irc/logs/%23%23stm32/2012-04-30.html
2012-04-30T12:13:54 <+Steffanx> Isn't that a 'stupid' question when you don't say anything about the sysclk freq.? :)
2012-04-30T12:14:02 <+Steffanx> dongs
2012-04-30T12:15:30 <+Steffanx> I'm not sure what the default frequency is, but that doesn't matter
2012-04-30T12:17:10 <+Steffanx> dongs you have that fantastic webshop, i guess you ship from japan?
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2012-04-30T12:18:32 <+Steffanx> Ok, skip fantastic
2012-04-30T12:18:53 <+Steffanx> Second try: dongs you have this webshop, i guess you ship from japan?
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2012-04-30T12:21:43 <+Steffanx> Dongs you have a build in piezo element and LCD in your body?
2012-04-30T12:21:55 <+Steffanx> I think you have
2012-04-30T12:22:07 < zyp> dongs, sysclk runs at 8 MHz by default :p
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2012-04-30T12:22:24 <+Steffanx> When something asks you something you don't understand or don't want to understand it says *beeeep* *beeeep* "Invalid input"
2012-04-30T12:23:04 < zyp> yes
2012-04-30T12:23:27 < zyp> 72M is just the rated max
2012-04-30T12:23:48 < zyp> it boots at 8M on HSI, and then you have to set the desired frequency yourself
2012-04-30T12:23:56 <+Steffanx> I like how it also seems to work at 128MHz :)
2012-04-30T12:24:21 < zyp> the question is how reliable it is at 128 MHz
2012-04-30T12:24:36 <+Steffanx> Dekar tried it dongs and sort of succeeeded
2012-04-30T12:24:44 < zyp> «sort of»
2012-04-30T12:24:47 <+Steffanx> afaik he didn't test all periperhals though
2012-04-30T12:24:58 <+Steffanx> Yeah, that's why i say "sort of" :)
2012-04-30T12:25:06 <+Steffanx> He didn't test everything
2012-04-30T12:26:08 < zyp> I'm pretty sure that if you tested several parts over a range of temperatures, you would find that it don't run reliably at that speed
2012-04-30T12:28:26 <+Steffanx> Who knows
2012-04-30T12:28:56 <+Steffanx> I'll get me an stm32f4 anyway when i need moar speed
2012-04-30T12:28:58 < zyp> the rated max is probably determined by testing and selected as the highest number that works reliably
2012-04-30T12:29:16 < zyp> did you follow the lpc4300?
2012-04-30T12:29:28 < zyp> it was originally specced to 150 MHz
2012-04-30T12:29:40 <+Steffanx> +- some mhz to be in the safe zone ..
2012-04-30T12:29:45 < zyp> then they upped the spec to 180 MHz, and then 204 MHz
2012-04-30T12:29:49 <+Steffanx> Yay
2012-04-30T12:30:11 <+Steffanx> m4 with m0 .,.. how fancy
2012-04-30T12:30:17 < zyp> I assume that is because they found the chips to perform better than initially estimated
2012-04-30T12:30:40 <+Steffanx> 204, i can't believe it not reliable at 205 or 206 anymore
2012-04-30T12:30:48 <+Steffanx> *it's
2012-04-30T12:31:22 < zyp> PLL frequency is not continously variable :p
2012-04-30T12:31:33 < zyp> the next PLL step is probably a bit higher than that
2012-04-30T12:31:47 <+Steffanx> Yeah, ofcourse
2012-04-30T12:37:13 <+Steffanx> dongs when i use octopart find a few 43x0's .. in stock
2012-04-30T12:37:39 <+Steffanx> Those don't seem to have any flash, but .....
2012-04-30T12:37:47 < zyp> that's the ram only models
2012-04-30T12:37:59 < zyp> they have been out for a while
2012-04-30T12:41:07 < karlp> the L1 series doesn't start at 8mhz mind you, it starts on a lower voltage range and using the MSI, not everything stm32 is the F1 :)
2012-04-30T12:47:12 <+Steffanx> :)
2012-04-30T12:47:44 < zyp> karlp, but we were talking about F1
2012-04-30T12:48:02 <+Steffanx> I'm not sure when i need the 4300 family for ..
2012-04-30T12:48:06 < zyp> L1 has a MSI?
2012-04-30T12:48:11 <+Steffanx> The extra m0 i mean
2012-04-30T12:49:07 < zyp> Steffanx, you can't imagine a use for the m0?
2012-04-30T12:49:16 <+Steffanx> The extra m0 ..
2012-04-30T12:49:17 < karlp> oh, he did say on f1 at the end, yeah ok :)
2012-04-30T12:49:27 <+Steffanx> m4+m0
2012-04-30T12:49:32 < karlp> L1 has LSI, LSE, MSI and HSE, no HSI
2012-04-30T12:49:43 < zyp> ah, right
2012-04-30T12:49:54 < zyp> so it's still the same, only slower :p
2012-04-30T12:50:00 < karlp> much much slower :)
2012-04-30T12:50:07 <+Steffanx> At least the LPC's have an sdram controller
2012-04-30T12:50:42 < zyp> Steffanx, and you can't see a use in having two cores?
2012-04-30T12:50:47 <+Steffanx> No :P
2012-04-30T12:50:56 <+Steffanx> For myself, no
2012-04-30T12:51:01 < zyp> what's the complexity of the stuff you're doing?
2012-04-30T12:51:03 < zyp> :p
2012-04-30T12:51:22 <+Steffanx> Not complex enough to need 2 controllers
2012-04-30T12:51:30 <+Steffanx> *for
2012-04-30T12:52:27 < zyp> it's meant for applications where the M4 core does calculations while the M0 handles IO
2012-04-30T12:52:45 <+Steffanx> In my projects the m4 handles it all :P
2012-04-30T12:53:14 <+Steffanx> or m3
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2012-04-30T12:53:36 < zyp> flyback, good to have you back, we've missed you so much
2012-04-30T12:53:37 <+Steffanx> bertha :)
2012-04-30T12:53:54 <+Steffanx> My sarcasm detector fails here
2012-04-30T12:53:58 <+Steffanx> *this time
2012-04-30T12:55:25 <+Steffanx> Your projects need that zyp ?
2012-04-30T12:56:26 <+Steffanx> m4+m0
2012-04-30T12:58:21 < zyp> another way to see it is that you use the M0 to avoid wasting M4 resources on menial tasks
2012-04-30T13:00:58 < zyp> having the M0 frees up M4 cpu time for more calculations, and since an M0 is way cheaper than an M4, you get more bang for the buck
2012-04-30T13:01:44 < zyp> dongs, or like running IP and USB stacks, and other shit
2012-04-30T13:02:00 < karlp> dongs, you can also have systick running at 10khz, but not have the systick interrupt handler,
2012-04-30T13:02:00 <+Steffanx> I didn't say I don't see applications for something like that, but I don't see where something like that is needed …. in my hobby bobby projects :)
2012-04-30T13:02:14 < karlp> so you get a freerunning counter at 10khz that you can sample the register at will,
2012-04-30T13:03:14 < zyp> karlp, no, the counter is still running at sysclk
2012-04-30T13:03:23 <+Steffanx> Even the m0 can run at 204MHz, that's pretty nice
2012-04-30T13:03:25 < zyp> but it will overflow at 10khz
2012-04-30T13:06:05 < karlp> zyp? really? I thought the whole point was that it was programmable increment rate?
2012-04-30T13:06:23 <+Steffanx> I think zyp is right
2012-04-30T13:06:24 < karlp> I guess that's why you often see handlers with another variable that is incremented in the handler.
2012-04-30T13:06:33 < zyp> karlp, huh?
2012-04-30T13:06:48 < zyp> systick doesn't have a prescaler, it's a single stage counter
2012-04-30T13:07:26 < zyp> the normal timers have a prescaler, making them two stage counters
2012-04-30T13:07:32 < zyp> since the prescaler is also a counter
2012-04-30T13:08:03 <+Steffanx> Arduino .. :P
2012-04-30T13:08:50 < zyp> wat
2012-04-30T13:08:54 < karlp> oh, also I was wrong, 32L has HSI as well as MSI
2012-04-30T13:09:01 < karlp> man, not my day
2012-04-30T13:10:24 <+Steffanx> From which channel is that quote dongs ?
2012-04-30T13:10:26 <+Steffanx> #arduino?
2012-04-30T13:10:42 < zyp> dongs, why would I know anything about arduino shields?
2012-04-30T13:11:05 <+Steffanx> Looking at this schematic of a random arduino can shield .. http://www.sparkfun.com/datasheets/DevTools/Arduino/canbus_shield-v12.pdf
2012-04-30T13:11:19 <+Steffanx> it's not possible to power it, unless you modify the board
2012-04-30T13:11:32 <+Steffanx> or nvm
2012-04-30T13:11:34 <+Steffanx> that's 12v
2012-04-30T13:12:06 <+Steffanx> me should read before he talks
2012-04-30T13:12:27 < zyp> according to pdf: apply power on pin 9 and ground pin 2
2012-04-30T13:13:04 <+Steffanx> Yeah, note to self: Read before talk
2012-04-30T13:15:40 <+Steffanx> Sometimes i feel so stupid :(
2012-04-30T13:49:56 < Laurenceb> zyp: there is a prescaler
2012-04-30T13:50:03 < Laurenceb> on systick
2012-04-30T13:50:21 < Laurenceb> at least on my f103 - but it only has /8 prescale
2012-04-30T13:51:37 < zyp> true, but you can't use that to give you 10 kHz :p
2012-04-30T13:51:50 < zyp> unless you're running sysclk at 80 kHz
2012-04-30T14:40:27 < gsmcmullin> Does anyone know if stlink or openocd have any trace/swv support?
2012-04-30T14:41:00 < zyp> I think Steffanx have been working on that for stlink
2012-04-30T14:41:06 <+Steffanx> No not really
2012-04-30T14:41:18 < zyp> Steffanx, you would know more than me at least
2012-04-30T14:41:31 <+Steffanx> I've only see some code to decode the swv stream in the repo of openocd.
2012-04-30T14:41:36 <+Steffanx> And actually it's VERY VERY simple
2012-04-30T14:41:49 <+Steffanx> They didn't implement it
2012-04-30T14:42:19 <+Steffanx> gsmcmullin, with the stlink, the data the comes from the 3rd endpoint is just the raw SWV stream
2012-04-30T14:42:57 < Laurenceb> SWV is packetised right?
2012-04-30T14:42:59 <+Steffanx> */the/that
2012-04-30T14:43:01 <+Steffanx> Yes
2012-04-30T14:43:08 < Laurenceb> and the protocol is doumented?
2012-04-30T14:43:16 <+Steffanx> Yes, in the armv7 documentation iirc
2012-04-30T14:43:23 < Laurenceb> is everything timestamped?
2012-04-30T14:43:24 < zyp> yes, it's on ARM's site
2012-04-30T14:44:29 < gsmcmullin> Thanks.
2012-04-30T14:44:42 <+Steffanx> Can't find the code that's somewhere in the openocd repo anymore
2012-04-30T14:44:48 <+Steffanx> Don't remember if it was on github or somewhere else
2012-04-30T14:44:50 < gsmcmullin> I'm working on this for blackmagic.
2012-04-30T14:45:11 <+Steffanx> me digs into his bookmarks
2012-04-30T14:45:15 < gsmcmullin> I've done the same as stlink then.  The raw binary is passed up an extra usb bulk endpoint.
2012-04-30T14:45:46 < gsmcmullin> I'm interested in the integration with GDB.
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2012-04-30T14:46:59 < zyp> gsmcmullin, btw. are you available later today? I would like to sort out those issues I were talking to you about before
2012-04-30T14:47:00 < gsmcmullin> Laurenceb: Timestamping is optional.
2012-04-30T14:47:28 < gsmcmullin> zyp: What timezone are you in?  It's nearly midnight here.
2012-04-30T14:47:47 < zyp> it's 13:47 here now
2012-04-30T14:47:58 < zyp> so I'm currently at work
2012-04-30T14:48:37 < zyp> anyway, if you could just provide me an updated build, I can test that and compare it to the one I built myself
2012-04-30T14:48:51 < gsmcmullin> I won't be around much longer, but I can put up a binary for you.
2012-04-30T14:49:06 < zyp> please do
2012-04-30T14:49:15 < zyp> then I'll report back my findings later
2012-04-30T14:49:26 < gsmcmullin> Would you like the new traceswo support?
2012-04-30T14:49:39 <+Steffanx> http://openocd.git.sourceforge.net/git/gitweb.cgi?p=openocd/openocd;a=blob_plain;f=contrib/itmdump.c;hb=HEAD i think that was the code.. not very useful though
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2012-04-30T14:50:35 < zyp> gsmcmullin, doesn't matter, latest published to git would be ok
2012-04-30T14:51:14 <+Steffanx> And it doesn't seem to be implemented in opencd
2012-04-30T14:51:24 < gsmcmullin> I'll give give you links to both.  The traceswo branch has only used with Linux.
2012-04-30T14:51:59 < zyp> gsmcmullin, the one that currently works for me is 4055706 with edaae39 reverted on top of that
2012-04-30T14:52:10 < zyp> 4055706 by itself doesn't work
2012-04-30T14:55:44 < gsmcmullin> http://www.blacksphere.co.nz/tmp/blackmagic_master.bin
2012-04-30T14:55:50 < gsmcmullin> http://www.blacksphere.co.nz/tmp/blackmagic_traceswo.bin
2012-04-30T14:57:03 < zyp> thanks
2012-04-30T14:57:52 < gsmcmullin> Let me know how it goes.  What host platform are you using/
2012-04-30T14:58:06 < zyp> os x
2012-04-30T14:58:17 < zyp> so I'm suspecting compatibility issues
2012-04-30T14:59:07 < gsmcmullin> I'm developing on Linux, but a few people are using on osx without a problem. (as far as I know)
2012-04-30T14:59:47 < zyp> which revision of libopencm3 are you building against?
2012-04-30T15:00:05 < gsmcmullin> sourceforge master
2012-04-30T15:01:04 < zyp> ok, good
2012-04-30T15:01:30 < zyp> have a good night then, I've got a few errands to run, so I'm leaving now
2012-04-30T15:01:39 < gsmcmullin> Cheers.
2012-04-30T15:02:20 < gsmcmullin> Steffanx: Thanks for the link above.
2012-04-30T15:02:33 <+Steffanx> np
2012-04-30T15:12:47 < karlp> who cares?
2012-04-30T15:12:52 < karlp> sif assembly
2012-04-30T15:13:22 <+Steffanx> If i knew some thumb2 assembly i did..
2012-04-30T15:13:27 <+Steffanx> but no i have no idea
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2012-04-30T15:59:26 <+Steffanx> oh, is that where a ctcp is meant for dongs
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2012-04-30T16:22:36 < Thorn> why floats?
2012-04-30T16:46:08 <+Steffanx> Who's Mr. Dick?
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2012-04-30T16:55:43 < Laurenceb> wow arduino sucks
2012-04-30T16:55:54  * Laurenceb is playing with maple ide
2012-04-30T16:56:06 < Laurenceb> its so baaad
2012-04-30T16:56:32 < cjbaird> Wasn't there some assembler trick that ?John Romero used to convert ints to floats, involving a quasi-multiplication with shifts..
2012-04-30T16:57:16 < cjbaird> Actually, probably predates Id.. Usenet programming groups called it a 'device' or somesuch.
2012-04-30T17:00:18 < Laurenceb> looks like processing
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2012-04-30T17:00:59 < Laurenceb> arg its so broken
2012-04-30T17:01:09 < Laurenceb> java stuff keeps jamming up
2012-04-30T17:02:04 < Laurenceb> java.io.IOException: Input/output error in nativeavailable
2012-04-30T17:02:46 < zyp> of course, it's java
2012-04-30T17:04:46 < Laurenceb> ah well its done what i wanted - looks like the adc transfers charge out propertional to the difference between the input voltage and VDDA/2
2012-04-30T17:04:46 < Thorn> wth is target.xml (apparently required for arm-gdb to support cortex-m better)?
2012-04-30T17:05:08 < karlp> probably contains the memory map?
2012-04-30T17:05:28 < karlp> stlink-texane has some embedded gloops of xml for running the gdbserver?
2012-04-30T17:05:32 < Laurenceb> so directly interfacing photodiodes wont work :/
2012-04-30T17:06:26 < Laurenceb> actually... it will - itll just bias the adc results in proportion to the photocurrent
2012-04-30T17:06:45 < Thorn> it apparently makes gdb understand stack within exceptions, rather than printing 2 entries and complaining ('bt' command)
2012-04-30T17:06:46 < Laurenceb> but thatd be noisy
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2012-04-30T18:46:08 < Laurenceb> http://news.slashdot.org/comments.pl?sid=2818835&cid=39841589
2012-04-30T18:47:24 <+Steffanx> Laurenceb  lives near london?
2012-04-30T18:47:38 < Laurenceb> luckily no
2012-04-30T18:48:03 <+Steffanx> I hope we won't get that bullshit over here
2012-04-30T18:48:16 <+Steffanx> I like to watch some OC sports, but not in this country :)
2012-04-30T18:49:15 <+Steffanx> *OG
2012-04-30T18:50:23 <+Steffanx> I order some cheap stm32f103's from ebay.. i wonder what i'll get
2012-04-30T18:50:26 <+Steffanx> *ordered
2012-04-30T18:50:34 <+izua> pic10f
2012-04-30T18:50:41 <+izua> with uv capsules
2012-04-30T18:50:44 <+Steffanx> Who knows
2012-04-30T18:50:53 <+izua> and 2-3 broken pins
2012-04-30T18:50:58 <+izua> how much did you pay?
2012-04-30T18:51:25 <+Steffanx> ~7.00 euro for 2
2012-04-30T18:52:21 <+Steffanx> O no exactly 7 :)
2012-04-30T18:58:33 <+Steffanx> I trust ebay more than the local ebay-clone (also owned by ebay nowadays). izua
2012-04-30T18:58:57 <+izua> the local ebay thing is a legalized scam, almost
2012-04-30T18:59:31 <+Steffanx> No, it's not really a clone.. the idea is different
2012-04-30T18:59:43 <+izua> they tax you for posting stuff, they tax you for extra pictures, they have a draconic ruling against contacting the other party outside their site, etc
2012-04-30T19:00:34 <+izua> they have a script, for example, which detects phone numbers in all shapes and sizes, like 07.2-three and such
2012-04-30T19:00:45 <+izua> but only with the right phone number prefix
2012-04-30T19:01:03 <+Steffanx> No, that only happens in romania
2012-04-30T19:01:17 <+izua> they have a bot that tries to search comments for yahoo ids :)
2012-04-30T19:01:31 <+izua> ah, that's just a clone
2012-04-30T19:01:42 <+izua> we had an isp once that forced you to have one contract/computer
2012-04-30T19:01:52 <+izua> (back before the ubiquity of android phones and wifi devices)
2012-04-30T19:01:54 <+Steffanx> Whaat
2012-04-30T19:02:03 <+izua> so they set TTL = 1 on all packets :)
2012-04-30T19:02:25 <+Steffanx> Yay
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2012-04-30T19:33:49 <+dekar> izua, that olivia encoding just uses 1khz of bandwidth? one should tune it to use like 1mhz for proper throughput :D
2012-04-30T19:34:28 <+izua> it can be extended to a lot of stuff
2012-04-30T19:34:52 <+dekar> you said you had some 10w transmitters, what are those exactly?
2012-04-30T19:35:04 <+dekar> I feel like getting a transmitter I can use with my PC as well
2012-04-30T19:35:19 <+izua> sent 'em back
2012-04-30T19:35:26 <+izua> they were some GP360 motorola portable radios
2012-04-30T19:35:55 <+izua> or 380
2012-04-30T19:35:57 <+izua> something like that
2012-04-30T19:36:41 <+dekar> I want an SDR transmitter now :/
2012-04-30T19:43:11 <+Steffanx> Time to get the companies credit card dekar
2012-04-30T19:45:18 <+dekar> right, I'll pretend we need that for communicating with our outpost in norway
2012-04-30T19:45:46 <+Steffanx> You mean romania :)
2012-04-30T19:45:53 <+dekar> that one as well
2012-04-30T19:45:53 <+izua> rofl
2012-04-30T19:46:02 <+izua> the outpost in romania will also require more funding
2012-04-30T19:46:20 <+izua> the fuel for this human things is getting low
2012-04-30T19:46:37 <+izua> apparently they don't work well in, ehm, i'm not sure how to spell this
2012-04-30T19:46:41 <+izua> sober
2012-04-30T19:46:45 <+izua> i think i got it right
2012-04-30T19:47:13 <+dekar> I'd rather suggest selling the romanian outpost before the country collapses :P
2012-04-30T19:47:28 <+izua> we can't sell it
2012-04-30T19:47:31 <+izua> summer is coming
2012-04-30T19:48:25 <+dekar> izua, http://www.youtube.com/watch?v=EPv9cPWpVf0
2012-04-30T19:48:45 <+dekar> they can carry 2kg of payload :)
2012-04-30T19:49:29 <+Steffanx> I need one that can carry at least 80
2012-04-30T19:49:38 <+Steffanx> kg
2012-04-30T19:49:50 <+dekar> lol those are too huge though :/
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2012-04-30T21:05:45 <+izua> dekar: if you want that sort of load, don't use electric
2012-04-30T21:05:49 <+izua> which is wasteful and inefficient by default
2012-04-30T21:06:42 <+izua> the camera is amazing though. was it transmitted during flight?
2012-04-30T21:08:03 < zyp> surely not
2012-04-30T21:08:16 < zyp> video looks way too good for that
2012-04-30T21:10:01 < zyp> oh, and I'd love to be proven wrong, because then I'd buy that kind of video link
2012-04-30T21:10:50 <+izua> hmm
2012-04-30T21:10:55 <+izua> he said he doesn't usually fly with an osd
2012-04-30T21:11:29 < zyp> also, check comments
2012-04-30T21:11:31 < zyp> «It is the GoPro HD footage with the OSD text taken from the ground recording, edited in.»
2012-04-30T21:11:41 <+izua> ah ofc
2012-04-30T21:11:43 <+izua> noticed it 3 secs ago
2012-04-30T21:11:50 <+izua> i'd love to get one of those toys for cycling
2012-04-30T21:12:04 <+izua> i don't normally read youtube comments
2012-04-30T21:12:33 <+Steffanx> lol
2012-04-30T21:14:28 <+izua> gopro is engineering at its best
2012-04-30T21:14:33 <+izua> "wanna buy a camera? cool. lcd optional"
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2012-04-30T22:47:46  * Laurenceb_ is experimenting with ADC sillyness
2012-04-30T22:48:09 < Laurenceb_> looks like 1 adc sample is equivalent to charging a 2pF cap to VDDA/2
2012-04-30T22:53:13 < jpa-> L151 has capacitive button interface which does stuff like that :)
2012-04-30T22:53:28 < Laurenceb_> i know
2012-04-30T22:53:46 < Laurenceb_> im playing about to try and come up with some ideas for direct photodiode interfacing
2012-04-30T22:58:56 < Laurenceb_> it doesnt look like photodiode connected directly to a pin will work well due to this charge transfer
2012-04-30T22:59:09 < Laurenceb_> if i sample at 1Msps thats like up to 2uA current
2012-04-30T22:59:20 < Laurenceb_> itll destroy my signal
2012-04-30T23:00:00 < Laurenceb_> just using a gpio input and input capture on a timer might be best - not sure how noisy the schmitt triggering is
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--- Log closed Tue May 01 00:00:09 2012