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  • [02:03:51] <sanjeevkb> hi
  • [02:04:09] <sanjeevkb> I am getting started with development on beagle board.
  • [02:04:43] <sanjeevkb> could someone suggest a reference material to refer to?
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  • [03:11:36] <Zagrophyte> hello
  • [03:12:12] <Zagrophyte> wow didn't this room used to have many more people?
  • [03:12:21] * Zagrophyte (Zagrophyte@unaffiliated/zagrophyte) has joined #beagle
  • [03:12:36] <Zagrophyte> ah #beagle
  • [03:12:50] <Zagrophyte> good eveningday
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  • [03:14:34] <Zagrophyte> I've just successfully applied the Rev C3 EHCI fix/hack using 22uf SMT cap :D
  • [03:15:17] <Zagrophyte> So, now it's time to put it to work
  • [03:15:39] <Zagrophyte> I'm creating an all-in-one PC using the BB and an old widescreen monitor I've repaired
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  • [03:15:59] <Zagrophyte> my question is this: How much thermal punishment can a beagleboard take?
  • [03:16:24] <Zagrophyte> it will be getting nice and cozy next to the PSU for the monitor, both devices do not use fans
  • [03:16:36] <Zagrophyte> it gets quite hot, and cools via convection
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  • [03:17:20] <Zagrophyte> so, even though the BB does not use a heatsink, and is "fanless", will it survive in this scenario?
  • [03:17:32] <Zagrophyte> or will I need to attach some sort of cooling?
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  • [04:20:27] <student> hello all
  • [04:24:58] <student> my mouse is not working with my display on beagle board?
  • [04:25:30] <student> if anyone has any solutions do let me know kindly
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  • [05:28:15] <Zagrophyte> student: what revision of beagleboard?
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  • [05:42:00] * doublebeta-sch is now known as doublebeta
  • [05:43:38] <doublebeta> also, what operating system? Does any other USB device work? Debian doesn't play nice with xM Rev C
  • [05:45:27] * Gaston|Home (Gaston@ua-83-227-239-139.cust.bredbandsbolaget.se) has joined #beagle
  • [05:48:36] <santiago> Hallo ! i have been running ubuntu (Natty with patch) on BB xM rev C board but the recent change in the onboard hub (as compared to rev B/A) make it unresponsive to usb devices. I tried the patch on this site point 13 -http://gigamegatech.com/2010/12/09/beagleboard-xm-and-angstrom-getting-the-big-dog-to-run-at-full-speed/ but this doesn;t work either
  • [05:49:16] <santiago> the problem is very vexing ,, has someone tried a "working" workaround
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  • [06:03:21] <hitlin37> satiago,angstrom is stable with usb's on bb
  • [06:03:30] <hitlin37> no idea about ubuntu
  • [06:05:59] <santiago> @hitlin37 : i have tried angstrom build, the board boots up without a glitch, the only problem is that the usb hub doesnt list the device like /dev/ttyUSBx
  • [06:06:40] <santiago> Angstrom image was build from the usual http://narcissus.angstrom-distribution.org/
  • [06:07:42] <santiago> this problem is not very well googled and i guess has cropped up with BB xM rev C only, due to some overhauls in usb circuit :(
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  • [06:09:23] <hitlin37> are you using self powered or bus powered hub?
  • [06:10:06] <santiago> tried both 5V adapter and usb OTG to power ... to no avail
  • [06:10:35] <santiago> hitlin : is your angstrom build working on BB xM rev C ?
  • [06:11:27] <hitlin37> i don't have one right now...but in past,it was working
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  • [06:11:37] <santiago> because i also have a xM rev A and rev B board, no such problem at all in these revs :O
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  • [06:12:23] <santiago> hitlin : can you direct me to some online resource/ angstrom build which you used to use ?
  • [06:13:30] * onchip (7aa9a66d@gateway/web/freenode/ip.122.169.166.109) Quit (Quit: Page closed)
  • [06:13:55] <hitlin37> mine was rev A.
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  • [06:14:23] <jack_smith> software for beagle board xM
  • [06:14:50] <santiago> :O thats it, this problem, AFAIK is native to xM rev C board only
  • [06:15:02] <hitlin37> software as in microsoft?
  • [06:15:07] <jack_smith> source code and tools to build a new kernel and application development
  • [06:15:49] <jack_smith> I am using Ubuntu 10.04 on my PC
  • [06:16:07] <jack_smith> I got beagle board xM.
  • [06:16:57] <jack_smith> I done with connections and launched existing OS on mmc card
  • [06:17:36] <jack_smith> I want to know which tools we have to use for application development and kernel building
  • [06:18:00] <jack_smith> I want to use Android.
  • [06:18:23] <jack_smith> Please can you help me to know the required info.
  • [06:18:26] <jack_smith> ?
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  • [06:19:34] * doublebeta is now known as google_
  • [06:19:37] <google_> why, yes I can
  • [06:19:40] * google_ is now known as doublebeta
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  • [06:20:48] <doublebeta> Lol.
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  • [06:49:10] <koen> hmm, A7
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  • [07:18:58] <vexorg> im running angstrom linux on my beagleboard xm and i want to use a more recent version of gstreamer and its plugins
  • [07:19:05] <vexorg> ive learned that i have to change the recipes to do this
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  • [07:19:20] <vexorg> but i guess im not using the right search terms in google to learn how to do this
  • [07:19:43] <vexorg> can someone give me some hints? either a url to start or perhaps some search terms?
  • [07:38:28] <ant_work> koen: how are you setting your X? Which -common are you using?
  • [07:39:57] <koen> raster: http://mail.gnome.org/archives/desktop-devel-list/2011-October/msg00118.html
  • [07:40:34] <koen> ant_work: no -common on images with a dm, on nodm-image whatever xserver-nodm-init drags in
  • [07:40:57] <ant_work> we have 2 xserver-nodm-init :/
  • [07:41:10] <ant_work> the one in meta-oe normally wins
  • [07:42:05] <koen> as it should
  • [07:42:11] <koen> that's why it's in there
  • [07:42:18] <ant_work> xserver-nodm-init in meta-oe RDEPENDS_${PN} = "xserver-common (>= 1.30) xinit"
  • [07:42:45] <ant_work> this leads to black screen
  • [07:43:50] <ant_work> while x11-common is ok, X starts and calibration with xinput-calibrator works
  • [07:46:22] <raster> koen: aaaah yay! hey al! :)
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  • [08:03:46] <koen> ant_work: that calibrator stuff should be converted to conform to xdg standard instead of using shell hacks
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  • [08:20:22] <ant_work> koen: it looks there are many gta specific hacks. even tslib
  • [08:25:48] <koen> right
  • [08:26:09] <koen> with a dumb framebuffer you don't really needs the -common stuff
  • [08:28:49] <ant_work> just the xmodmap
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  • [08:36:11] <Cubi_> What is "beaglebone"?
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  • [11:28:56] <dolla> hewwo
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  • [11:30:54] <dolla> hi
  • [11:31:51] <dolla> i mistakenly wrote to NAND flash yesterday and now i cant get the bglboard to load
  • [11:32:05] <dolla> i only see 40V, which as I understand is just NAND flash saying im here
  • [11:32:20] <dolla> how can i restore xloadr and uboot_
  • [11:32:23] <dolla> ?
  • [11:32:40] <mru> boot from an sd card
  • [11:32:56] <dolla> by holding USER button and reset?
  • [11:33:00] <dolla> it still just shows 40V
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  • [11:33:10] <dolla> (with SD card inserted)
  • [11:33:17] <dolla> nothing else happens
  • [11:33:21] <mru> then it is not correctly formatted
  • [11:33:40] <dolla> i tried it on a working board
  • [11:33:52] <dolla> but if its a working board, will it load the MLO file?
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  • [11:47:45] <perter-jim> hi
  • [11:51:32] <perter-jim> hdmi read edid ,i2c_omap i2c_omap.2: controller timed out
  • [11:51:47] <perter-jim> kernel always poll
  • [12:07:09] <student> hello, i am trying to interface a device on mcspi3 but its not working
  • [12:07:35] <student> can anyone let me know how to check if spi is working or no, my read line is always reading 0 only
  • [12:10:55] <ka6sox> are you asserting MOSI and clocking?
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  • [12:14:05] <student> ka6sox : i changed the modes also
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  • [12:40:32] <andoma> anyone with experience of using the OpenGL drivers on the omap4?
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  • [12:41:59] <werder> 123
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  • [13:01:15] <mru> 456
  • [13:01:55] <koen> 26!
  • [13:01:55] <student> can nyone tell me how to test if my spi is working or no because my SOMI is always reading zero only
  • [13:02:28] <ka6sox> miso?
  • [13:03:01] <koen> short the lines and see if you can receive what you send
  • [13:03:10] <student> ok
  • [13:03:21] <koen> aka follow the SPI debug instructions mentioned in the spi wiki and beagle ml
  • [13:04:04] <student> koen: i followed those instructions and followed everything http://elinux.org/BeagleBoard/SPI i was referring this
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  • [13:25:03] <student> koen: yes shorted the somi, mosi lines are it is showing the same data
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  • [13:46:30] <nextime> hello all, which debian is suggested on beagle xm?
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  • [14:04:46] <nextime> hello all, which debian is suggested on beagle xm? in other words, is armhf usable?
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  • [14:13:21] <dm8tbr> nextime: ask debian?
  • [14:14:54] <nextime> dm8tbr : i'm trying it
  • [14:15:28] <nextime> i've just done the error to try the setup_script instead of manually install, and it format the rootfs by default in ext4, that is painfully slow on a sdcard...
  • [14:15:56] <dm8tbr> is it?
  • [14:16:14] <nextime> in my experience, yes
  • [14:16:30] <nextime> anyway, before to reinstall in ext3, or even ext2
  • [14:16:47] <dm8tbr> interesting, thought it was optimized for sd and nand based drives
  • [14:16:52] <nextime> i will try to do some optimization to ext4 just to test if it can be made faster
  • [14:17:12] <dm8tbr> there's also btrfs, but I don't hear very good things about it
  • [14:17:30] <nextime> dm8tbr : it isn't enough mature in my opinion for the moment
  • [14:18:35] * nextime needs to add the rtc battery
  • [14:18:55] <dm8tbr> IIRC there isn't even fsck for btrfs yet
  • [14:20:35] <koen> dm8tbr: neither for jffs2 and ubifs
  • [14:22:07] <dm8tbr> are those supposed to be inherently safe and not need fsck?
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  • [14:23:17] <rcn-ee_at_work> nextime, that script as an option to specify ext2/3/btrfs over ext4..
  • [14:23:25] <koen> jffs2 rebuilds the complete tree on mount :)
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  • [14:23:40] <koen> which is why it's so *$(*$(#$*(@ slow
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  • [14:32:18] <nextime> rcn-ee_at_work : yes, but i have launched it with defaults as it was just a first test
  • [14:34:14] <rcn-ee_at_work> "--rootfs=ext3" would change it.. for now the armhf is more a 'demo/test' release, it'll get much better when it moves to the debian main server instead of ports, in a month or two according to my debian contact
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  • [14:36:05] <nextime> rcn-ee i'm doing some optimization, after that, i will make a backup and reinstall it on ext2 or 3
  • [14:37:31] <rcn-ee_at_work> cool.. it's defintelly a nice speed up over debian armel, but with only main available in the repo's you can't do a whole lot..
  • [14:39:36] <nextime> rcn-ee: i need just the main as my goal is to use it just to run an ad-hoc daemon
  • [14:40:29] <nextime> ok, i'm trying using ext4 but with noatime and writeback enabled
  • [14:44:49] <BlInK311> hey guys, not a direct beagle question but somewhat related. why do some memory cards have issues while others dont? is it the way they are made? different features? link to more information?
  • [14:45:14] <rcn-ee_at_work> $ of nand/controller/etc..
  • [14:45:34] <rcn-ee_at_work> some are optimzed for fat16/32..
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  • [15:18:02] <chrisw957> Is there any reason not to use oe-core/meta-ti now?
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  • [15:19:10] <koen> chrisw957: provided you use meta-angstrom as well, no
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  • [16:01:29] <nextime> with relatime ext4 is a lot better
  • [16:02:39] * mru uses noatime
  • [16:03:15] <nextime> mru : noatime can give issues in some things, relatime is a good alternative
  • [16:03:28] <mru> I don't use things that have issues with it
  • [16:03:50] <nextime> ok
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  • [16:04:18] <mru> relatime is the default nowadays actually
  • [16:04:20] <nextime> so i have my beagle ready as i want to have, now i just need to add the rtc battery and my spi module
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  • [16:05:05] * nextime is building an extension board to add a 12 Gbit ethernet switch
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  • [16:25:47] <mru> a 12-port switch I presume
  • [16:25:59] * mru would like 12Gbps links...
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  • [16:26:56] <koen> I have an imap server with idle support
  • [16:27:02] <koen> so that needs relatime
  • [16:27:10] <koen> well
  • [16:27:14] <koen> if it was on ext*
  • [16:27:15] <mru> depends on the server
  • [16:28:17] <nextime> yes
  • [16:28:22] <nextime> a 12 port managed switch
  • [16:28:37] <mru> koen: cyrus seems to work fine with noatime
  • [16:28:50] <koen> ISTR dovecot needed it
  • [16:28:57] <koen> they might have fixed it by now
  • [16:29:05] <koen> I checked it a few years ago :)
  • [16:29:08] <mru> and either way, you only need it on the volume the imap server uses
  • [16:29:19] <koen> exactly
  • [16:29:22] * koen hugs xfs
  • [16:29:30] <mru> xfs is nice
  • [16:30:10] <mru> except for some weird bug that makes some nfs clients act up if mounting an exported xfs filesystem
  • [16:30:23] <koen> or crash the kernel
  • [16:30:27] * koen had that bug
  • [16:30:34] <koen> one of the reasons I try to avoid nfs
  • [16:30:36] <mru> no crashes
  • [16:30:49] <mru> just lots of 'stale nfs filehandle' on ARM clients
  • [16:30:53] <mru> MIPS clients never had a problem
  • [16:30:55] <koen> xfs and a recent fedora -> PAIN
  • [16:30:56] <mru> weird
  • [16:31:10] <mru> s/xfs and//
  • [16:31:16] <mru> s/recent// too
  • [16:31:31] <koen> fedora is less retarded than ubuntu
  • [16:31:46] <mru> I place them all in the same class
  • [16:32:14] <koen> I do not want to use gentoo
  • [16:32:27] <mru> I never said gentoo was the only sane one
  • [16:32:28] <koen> I know where that ends, it feeds my addictive personality too much
  • [16:33:11] <mru> what do you run on your PCs?
  • [16:33:41] <koen> debian on the buildserver, mythbuntu on the mediapc
  • [16:33:49] <koen> rest is OSX with fedora in virtual machines :)
  • [16:33:55] <mru> eeeew
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  • [16:53:25] <jkridner> I updated a small # of details on the 'bone' web page. (that is the name of the upcoming board) If I know you and you don't have the link, this is your one chance I won't be grumpy if you ping me privately. I'm trying to avoid putting the link in the logs.
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  • [16:55:31] <koen> it's not that hard to guess, though
  • [16:55:41] <dm8tbr> jkridner: hm? talking about 'eagleboard' or whatever it is ;)
  • [16:55:50] <mru> dm8tbr: no
  • [16:55:53] <jkridner> no...
  • [16:55:58] <jkridner> not an A15 board.
  • [16:56:06] <dm8tbr> k
  • [16:56:07] <jkridner> koen: indeed.
  • [16:56:18] <mru> although I've been reading some s3cr3t docs on the a15 and it looks like it should be really nice
  • [16:56:29] <koen> jkridner: the feedback I got on that page was "cute girl in the pic"
  • [16:56:34] <jkridner> lol
  • [16:56:43] <jkridner> probably why they won that contest. :)
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  • [16:57:15] <jkridner> by comparison, mr. monk is not as good as a source of advertisement?
  • [16:57:32] <koen> jkridner: he was eclipsed by the wall he was presenting
  • [16:57:44] <mru> he lip sync is way off
  • [16:57:49] <mru> her
  • [16:57:50] <jkridner> he's in the still image though.
  • [16:58:25] <jkridner> is it that or is it the frame rate is so low?
  • [16:58:37] <mru> hard to tell
  • [16:58:38] <santiago> hello ... i am running ubuntu ( natty with patch) and angstrom on BB xM rev C , but the usb hub does not list devices as /dev/ttyUSBx when they are connected
  • [16:58:40] <jkridner> guess it is both.
  • [16:58:42] <mru> it just looks wrong
  • [16:59:13] <santiago> has anyone faced the same problem or has found a workaround ?
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  • [16:59:46] <jkridner> santiago: you are probably using an old u-boot and/or kernel.
  • [17:00:17] <jkridner> http://beagleboard.org/faq has some links to the Rev B vs. Rev C changes (patches required to address the changes)
  • [17:00:22] <yousfi> Hi :)
  • [17:00:35] <jkridner> I'm not sure where the old Ubuntu images are coming from, but I assume that Canonical isn't updating their image.
  • [17:00:43] <koen> jkridner: or install the acm kmod, like the chronos guys did
  • [17:00:50] <jkridner> upstream should have working USB hub/Ethernet.
  • [17:01:14] <jkridner> oh...
  • [17:01:22] <jkridner> this isn't the "hub doesn't work" problem?
  • [17:01:23] <rcn-ee_at_work> santiago, it could be /dev/ttyACM ;)
  • [17:01:39] <santiago> not even that ....
  • [17:01:40] <jkridner> I'm so used to just giving that answer. :)
  • [17:02:12] <santiago> i think jkridner is correct .. i have seen this reference , that the u-boot and MLO files need to be updated
  • [17:02:13] <koen> jkridner: the 'ubuntu' threw you off, didn't it?
  • [17:02:15] <rcn-ee_at_work> santiago, are you powering with a 5volt dc supply?
  • [17:02:31] <santiago> yes .... i have tried both usb OTG and 5V
  • [17:02:35] <yousfi> HELLO Everybody
  • [17:02:52] <yousfi> I am new here
  • [17:02:59] <jkridner> hi yousfi
  • [17:03:03] <santiago> hello
  • [17:03:07] <jkridner> btw, since there are a few people chatting here....
  • [17:03:25] <yousfi> :) Thank you
  • [17:03:25] <jkridner> I think by the end of the month, I'll change http://beagleboard.org/chat to point to #beagleboard, rather than here.
  • [17:03:44] <jkridner> several people show up there and look around....
  • [17:03:59] <jkridner> I'm not sure if there is a way I can have a bot or something here to tell everyone to go there....
  • [17:04:32] <jkridner> but, I think we are likely to be happy to have some moderation when a bunch of newbies show up with the launch of a new board version.
  • [17:04:40] * santiago_ (ca034db7@gateway/web/freenode/ip.202.3.77.183) has joined #beagleboard
  • [17:04:55] <jkridner> the bot is already over there logging, so none of our conversations should get lost...
  • [17:05:06] <yousfi> Actually i joind bcz i have a probleme with my BB
  • [17:05:08] <jkridner> I still have the same old bugs that mean I need to make sure it restarts every now and again.
  • [17:05:27] <woglinde> hehe that was cloud stuff was for
  • [17:05:33] <jkridner> anybody have a bit.ly or tinyurl link to "smart questions"?
  • [17:05:39] <santiago> wot problem yousfi ?
  • [17:05:45] <jkridner> yousfi: have you read http://beagleboard.org/faq?
  • [17:06:15] <yousfi> Noo , should i ?? sorry
  • [17:07:42] <yousfi> I have a beagleboard . I am mainly interested interfacing a camera to these processors. I dont know how to connect a high-quality camera to these boards/processors.
  • [17:08:09] <yousfi> :(
  • [17:09:22] <woglinde> usb?
  • [17:10:19] <yousfi> Please take a look to this one http://www.gumstix.com/
  • [17:10:29] <woglinde> why??
  • [17:10:34] <woglinde> we know the gumstix
  • [17:11:07] <yousfi> it is probably the best prototyping environment for my purposes
  • [17:11:41] <yousfi> I pasted it to show you the concept of the product
  • [17:13:31] <yousfi> I am interested interfacing a camera to these BB so that i can have smt like gumstix
  • [17:14:06] <yousfi> Please Let me know your opinion :)
  • [17:16:47] * rcn-ee_at_work (~voodoo@64.77.213.245) Quit (Remote host closed the connection)
  • [17:16:58] <nextime> uhmm
  • [17:17:06] <nextime> to use spi i need to patch the kernel
  • [17:19:54] <mru> good for you
  • [17:19:58] <mru> patching kernel is fun
  • [17:20:57] <nextime> mru : rotfl, i don't think that is fun, i just think that is "more time to waste"
  • [17:21:38] * BThompson (bhthompson@nat/google/x-dyeyuveknmndtfwy) Quit (Remote host closed the connection)
  • [17:21:40] <nextime> anyway, i have to do it also for my own things, so, nothing too bad
  • [17:22:18] <mru> but kernel hacking is fun
  • [17:22:29] <mru> why else would anyone do it?
  • [17:22:55] <nextime> mru : never hear about
  • [17:23:01] <nextime> "job"
  • [17:23:02] <nextime> ?
  • [17:24:10] <mru> why would I take a job that's not fun?
  • [17:24:39] <nextime> mru : cause it's just a dependence for the real job that IS fun
  • [17:24:40] <nextime> :D
  • [17:24:44] <nextime> ( and to make money! )
  • [17:24:55] <woglinde> mru does both
  • [17:25:01] * Crofton (~balister@pool-96-240-183-10.ronkva.east.verizon.net) has joined #beagle
  • [17:25:17] <woglinde> hi crofton
  • [17:27:38] <yousfi> :)
  • [17:29:22] * UnderSampled (~UnderSamp@cpe-071-065-234-146.nc.res.rr.com) has joined #beagleboard
  • [17:29:27] <nextime> http://danex.nexlab.it/q.jpg <- this is what i'm working on right now, the bottom two green boards are the "fun" part for me
  • [17:29:28] <nextime> :P
  • [17:29:44] * UnderSampled (~UnderSamp@cpe-071-065-234-146.nc.res.rr.com) has left #beagleboard
  • [17:33:17] <thurbad> o.O
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  • [17:37:57] <Tobba> Think I more or less partially broke my BeagleBoard xM
  • [17:38:10] <Tobba> It just reboots in the boot process of any linux distro
  • [17:38:18] <Tobba> Without an error
  • [17:38:25] <Tobba> Minus this when it first boots: *** Warning - bad CRC or NAND, using default environment
  • [17:38:53] <thurbad> what are you using for a power source?
  • [17:39:09] <Tobba> Android USB charger in the Mini-USB port
  • [17:39:16] <Tobba> (To prevent it from crashing from the glitch when powered from PC)
  • [17:39:38] <Tobba> Managed to boot it up once, but had to reset it
  • [17:40:12] <thurbad> I would suggest a barrel adapter rather than the otg port
  • [17:40:30] <Tobba> Dont have anything that can give enough juice
  • [17:40:36] <Tobba> If I power it from the USB port it just kernel panics
  • [17:40:47] <Tobba> Now it just throws itself back to the boot manager
  • [17:40:54] * nextime use a dc-dc stabilized converter 12V->5V ( i have 12V distribution @home )
  • [17:41:11] <woglinde> yes external ac
  • [17:41:22] <Tobba> Stil
  • [17:41:29] <Tobba> Still*
  • [17:41:30] <Tobba> It randomly
  • [17:41:30] <Tobba> Decides to boot up
  • [17:42:28] <Tobba> It worked perfectly fine yesterday
  • [17:43:05] <Tobba> Oh it booted
  • [17:43:06] <Tobba> Finally
  • [17:43:21] <Tobba> After a million hard resets it finally decided to boot
  • [17:43:43] <woglinde> be lucky
  • [17:44:48] <Tobba> Well yeah
  • [17:45:02] <Tobba> It was carried in a bag today (in its original box, with foam)
  • [17:45:07] * arcanescu (925706ef@gateway/web/freenode/ip.146.87.6.239) Quit (Quit: Page closed)
  • [17:45:08] <Tobba> Guessing that SOMEHOW borked it
  • [17:45:24] <woglinde> only when you cook it
  • [17:46:51] <Tobba> Its rediclous, but yeah
  • [17:46:54] <Tobba> It works atleast
  • [17:47:02] <Tobba> (With some mashing the USB cable in and out)
  • [17:47:12] <Tobba> Any idea what the heck is up with the warning about the NAND on boot
  • [17:47:30] <mru> which warning?
  • [17:47:36] <mru> oh that
  • [17:47:44] <mru> nothing to worry about
  • [17:48:06] <woglinde> xm hasnt nand anyway
  • [17:48:08] <Tobba> The thing I worry about though is that it refuses to boot any linux distro
  • [17:48:16] <Tobba> All seems to fail at some USB related step
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  • [17:57:38] <Guest10461> Hi folks!
  • [17:59:32] * jayabharath_ (~jayabhara@nat/ti/x-cmsexdwokmqbmrde) Quit (Quit: jayabharath_)
  • [18:00:14] * santiago_ (ca034db7@gateway/web/freenode/ip.202.3.77.183) Quit (Ping timeout: 265 seconds)
  • [18:00:16] <Guest10461> I need to use the beagleboard serial port to talk to a microcontroller, but this port is in use with console messages... Do I need to recompile the kernel to disable it? I am access the console by ssh...
  • [18:00:38] <prpplague> Guest10461: the smart thing to do is use one of the other serial ports
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  • [18:03:10] <wmat> prpplague: I've added a presentation page for ELCE to the elinux.org wiki. It's linked to from the frontpage. So if you want, you can add your presentations there.
  • [18:03:31] <wmat> http://elinux.org/ELCE_2011_Presentations
  • [18:03:40] <wmat> likewise for any other presenters
  • [18:03:40] <prpplague> *cough* sure, i'll upload them _soon_
  • [18:03:49] * wmat looks at koen
  • [18:04:21] <prpplague> wmat: good luck with koen... we will have to still his laptop to upload the presentation
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  • [18:04:27] <prpplague> s/still/steal
  • [18:04:57] <prpplague> wmat: flyswatter2's and beacon boards arrived at the hotel this morning
  • [18:06:19] <wmat> prpplague: awesome
  • [18:06:35] <prpplague> wmat: you can have 5 for the elinux wiki
  • [18:06:45] <wmat> cool!
  • [18:06:56] <wmat> 5 each?
  • [18:07:17] <prpplague> yea
  • [18:07:58] <wmat> awesome
  • [18:08:21] * wmat pencils in 4 beaconboards, as one might accidentally land in his suitcase
  • [18:08:51] <Guest10461> prpplague, Is there another UART beyond used with console messages in BB xM?
  • [18:09:00] <prpplague> Guest10461: yes
  • [18:09:28] <Guest10461> OK, I will search for it in manual...
  • [18:09:38] <prpplague> Guest10461: what microcontroller are you trying to interface to?
  • [18:11:01] <Guest10461> Atmega168
  • [18:11:13] <Guest10461> I found in manual UART1!
  • [18:11:39] <prpplague> Guest10461: maybe you should consider purchasing a Trainer board for use with the beagle
  • [18:11:45] <Guest10461> Later, I need to read a 3G modem by UART..
  • [18:11:49] * jayabharath (~jayabhara@nat/ti/x-xexinxtzzkeqdwli) Quit (Quit: jayabharath)
  • [18:11:59] <prpplague> Guest10461: http://www.elinux.org/BeagleBoard_Trainer
  • [18:12:06] <Guest10461> OK!
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  • [18:14:12] <mru> koen: I figured you'd +1 that
  • [18:17:08] <Guest10461> prpplague, thanks for your help. I figured out what I must to do...
  • [18:17:32] <prpplague> Guest10461: good luck then
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  • [18:33:45] <nextime> uhmm
  • [18:34:20] <nextime> the mac address of the ethernet on the beagle xm need to be fixed by udev cause it change on reboot randomly?
  • [18:34:33] * olsen (~sesselast@213.144.157.68) Quit (Quit: Leaving.)
  • [18:34:51] <nextime> dmesh
  • [18:35:30] <nextime> ah
  • [18:35:39] <nextime> it is an smsc usb ethernet
  • [18:36:28] * jkridner (~jkridner@pdpc/supporter/active/jkridner) Quit (Ping timeout: 260 seconds)
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  • [18:42:29] <nextime> mumble
  • [18:42:53] <nextime> is it true that future versions of bb-xm will not have nand?
  • [18:43:35] <nextime> ( i was thinking to put the fixed mac addr in the nand, i want to assign a fixed mac for every single board, not to put it on the sdcard )
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  • [18:44:58] <jonpry> create the mac from the cpuid?
  • [18:45:22] <nextime> jonpry : this need to have support in the software on nand
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  • [18:45:53] <nextime> ops
  • [18:45:56] <nextime> s/nand/sdcard
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  • [18:46:45] <nextime> ok, i need to start hacking the hw part
  • [18:47:18] <nextime> ( so, maybe i can add a nand or an eeprom and modify the boot process to force the mac addr here in some way )
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  • [18:52:37] <ds2> when's the A7 chip coming out? ;)
  • [18:52:54] <ds2> media has confirmed TI is backing the A7
  • [18:57:35] <mru> the A7 is out
  • [18:57:45] <mru> you can go and buy a licence today
  • [18:58:06] * emeb1 (~ericb@ip72-223-86-178.ph.ph.cox.net) has joined #beagle
  • [18:58:16] <mru> I guess it'll start showing up in the second round of A15 devices
  • [19:00:05] <koen> mru: I +1'd even when I ship a toolchain in the rootfs by default now :)
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  • [19:35:33] <nextime> is the jtag of beagle xm work with openocd?
  • [19:37:20] <mru> it should
  • [19:42:30] <lsxq> anyone have recommendations on sd card brands or models for use in embedded?
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  • [19:43:25] <mru> sandisk
  • [19:43:35] <mru> for any use
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  • [19:48:06] <djlewis_> I got to avoid computers for a while.
  • [19:48:44] <djlewis_> my main home linux somputer and a vista computer went funky on me last night.
  • [19:48:56] <djlewis_> A computer I use here at work went funky on me
  • [19:49:11] <djlewis_> -s +c
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  • [19:52:53] <lsxq> mru: any particular reasons for sandisk?
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  • [19:53:39] <mru> they work
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  • [20:14:48] <thurbad> sandisk is nice but pricey
  • [20:15:57] <mru> you don't need to get the ultra-super-mega-fast ones
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  • [20:37:36] <Tr0yL> hi all
  • [20:39:19] <Tr0yL> I'm trying to change the boot logo, I've successfully compiled the u-boot but when I try to apply the patch It fails and I don't find the board/omap3/beagle folder ...
  • [20:39:26] <Tr0yL> anyone ?
  • [20:42:29] <Tr0yL> the repo to use is gitorious
  • [20:42:34] <Tr0yL> and the folder appears !
  • [20:42:35] <Tr0yL> sorry
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  • [21:00:30] <Crofton|work> mru, you awake
  • [21:01:09] <mru> pong
  • [21:01:32] <Crofton|work> I just had some inline asm fail to compile on a more recent gcc
  • [21:01:35] <Crofton|work> hang on
  • [21:01:38] <Crofton|work> going to pastenin
  • [21:01:56] <Crofton|work> impossible register constraint in 'asm' is the error
  • [21:02:13] <Crofton|work> http://pastebin.com/EaXtTbVe
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  • [21:03:23] <mru> looks like a dot product
  • [21:03:35] <Crofton|work> very good :)
  • [21:04:19] <mru> now I can't say what's wrong without seeing the declarations for all the operands of that asm
  • [21:04:27] <Crofton|work> k
  • [21:04:32] <mru> well, I can guess what 'n' is
  • [21:04:42] <mru> and a and b
  • [21:04:51] <mru> oh, I got it
  • [21:05:02] <Crofton|work> http://pastebin.com/5wVGAecQ
  • [21:05:02] <mru> s is a float used as return value
  • [21:05:22] <mru> simple answer: don't use inline asm
  • [21:05:27] <Crofton|work> I know
  • [21:05:39] <Crofton|work> next time I have to deal with this, I plan to work it out
  • [21:05:46] <mru> so why do you use it?
  • [21:05:57] <Crofton|work> I haven't had time to sort it out
  • [21:06:20] <Crofton|work> got a quick fix?
  • [21:06:30] <Crofton|work> you may beat me in person next week
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  • [21:06:55] <mru> btw why do you initialise s before the asm?
  • [21:06:58] <mru> that's not necessary
  • [21:07:20] <Crofton|work> er
  • [21:07:42] <Crofton|work> right
  • [21:07:52] <Crofton|work> probably just out of habit
  • [21:08:05] <Crofton|work> the c vresion likely had s+=thing
  • [21:08:24] <mru> anyway, if you insist on using inline asm, read http://hardwarebug.org/2010/07/06/arm-inline-asm-secrets/
  • [21:08:42] <mru> change the w constraint to a t
  • [21:09:08] <mru> now I'd do this a little differently
  • [21:09:14] <mru> to save some unnecessary instructions
  • [21:09:25] <Crofton|work> yeah, I've read that and I am convinced going to .s files will be easier than sorting out constraints
  • [21:09:53] <mru> there are lots of constructs you can't even dream of doing with inline asm operands
  • [21:10:42] * Thorn (~Thorn@unaffiliated/thorn) Quit ()
  • [21:10:57] <mru> which abi are you using btw?
  • [21:11:09] <Crofton|work> soft atm
  • [21:11:16] <mru> on an a8?
  • [21:11:20] <Crofton|work> yes
  • [21:11:24] <koen> softfp?
  • [21:11:34] <mru> say hi to 20-cycle returns from that function
  • [21:11:38] <Crofton|work> whatever angstrom uses :)
  • [21:11:51] <mru> koen: there are two float ABIs
  • [21:11:54] <mru> soft and hard
  • [21:12:18] <mru> gcc just abuses the abi switch to choose softfp
  • [21:12:27] <Crofton|work> mru, using hard would change that?
  • [21:12:33] <mru> yes
  • [21:12:48] <mru> with hard the result stays in a vfp register
  • [21:12:54] <mru> s0 to be precise
  • [21:13:00] <Crofton|work> yes
  • [21:13:19] <Crofton|work> : "=t"(s), "+r"(a), "+r"(b), "+r"(n)
  • [21:13:23] <Crofton|work> is what you meant?
  • [21:13:26] <mru> yes
  • [21:13:31] <Crofton|work> some prolem
  • [21:13:37] <mru> you should also make the r operands early-clobber
  • [21:13:42] <mru> but that's not the cause of your error
  • [21:14:15] <mru> gcc version?
  • [21:14:36] <Crofton|work> 4.5.4
  • [21:14:40] <Crofton|work> but I suspect patched
  • [21:14:48] <mru> should be fine
  • [21:15:13] <mru> some of those things mentioned in my blag post are new to 4.5
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  • [21:15:35] <koen> 4.5.4 + linaro
  • [21:15:46] <mru> linaro patches are usually good
  • [21:15:55] <Crofton|work> well, this used to work ....
  • [21:15:59] <Crofton|work> well
  • [21:16:01] <Crofton|work> compile
  • [21:16:35] <Crofton|work> got soe otehr suggestions that might get the compiler to stop vomitting
  • [21:18:30] <mru> compiler flags?
  • [21:19:35] <Crofton|work> the usual angstrom ones
  • [21:19:46] <mru> which are what?
  • [21:19:53] <Crofton|work> hmm
  • [21:20:07] <Crofton|work> I my see a problem
  • [21:20:11] <Crofton|work> stupid cmake
  • [21:20:15] <Crofton|work> well stupid operator
  • [21:20:47] <mru> missing -march/-mcpu?
  • [21:20:51] <Crofton|work> yeah
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  • [21:21:03] <Crofton|work> wasn't setting them for C files only cpp
  • [21:21:09] <Crofton|work> sorry to bother you
  • [21:21:18] <Crofton|work> I owe you beer
  • [21:21:59] <koen> all hail cmake
  • [21:22:46] <Crofton|work> well operator error
  • [21:22:55] <Crofton|work> my configure notes set the flags for both
  • [21:23:09] <Crofton|work> I copied the cmake command from uhd which is straight c++ files
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  • [21:23:54] <woglinde> crofton *g*
  • [21:24:12] <woglinde> preparing elce showcase?
  • [21:24:19] <koen> Crofton|work: so you took the autotools approach to writing cmakefiles
  • [21:24:44] <mru> koen: heavy cargo-culting?
  • [21:25:32] <Crofton|work> :)
  • [21:25:35] <koen> mru: heavy copy/paste
  • [21:25:40] <koen> combined with cargo culting
  • [21:25:42] <Crofton|work> yeah
  • [21:25:54] <Crofton|work> I need to make some toolchain files to stop this kind of error
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  • [21:31:14] <Crofton|work> mru, even with hard float, the result will get written to memory when the function returns
  • [21:32:15] <mru> so?
  • [21:32:30] <mru> immediately?
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  • [21:35:44] <Crofton|work> I suspect it does
  • [21:36:00] <Crofton|work> since we are taking two input vectors and creating the third output one
  • [21:36:24] <Crofton|work> thawhere each element in the output vector is the result of the dot product
  • [21:37:35] <Crofton|work> so what we would need to do is calcualte 4 output elements before storing the result
  • [21:37:41] <Crofton|work> so we could store a q reg
  • [21:42:00] <ds2> aren't there preomptimized NEON based dot product routines out there already? that seems to be a common thing
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  • [21:59:44] <mru> ds2: sounds like he's doing a cross-correlation
  • [21:59:52] <mru> which is better done with an fft
  • [22:01:01] <ds2> ah
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  • [22:03:24] <Crofton|work> if the fft is better than th correlation
  • [22:03:56] <mru> the big-O complexity is better
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  • [22:05:42] <mru> Crofton|work: http://pastie.org/2732237
  • [22:05:47] <mru> if you're anyway saving the result
  • [22:06:22] <mru> to memory
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  • [22:07:36] <mru> if you don't want to go the fft route, you could probably calculate several xcorr passes at the same time
  • [22:07:42] <mru> save some loads
  • [22:08:34] <Crofton|work> basically, gnuradio has several types of filters the user can pick from
  • [22:08:39] <Crofton|work> the fft ones are available
  • [22:08:45] <Crofton|work> but they depend on fftw
  • [22:09:02] <mru> fft how?
  • [22:09:03] <Crofton|work> you should really talk about this in #gnuradio :)
  • [22:09:07] <Crofton|work> not sure
  • [22:09:15] <mru> you can implement a cross correlation using ffts
  • [22:09:15] <Crofton|work> I'd have to look closely
  • [22:09:19] <Crofton|work> yes
  • [22:09:26] <mru> which is faster than doing it the naive way
  • [22:09:30] <Crofton|work> you need to get into sdr :)
  • [22:09:34] <mru> so what's the point in doing the slow way?
  • [22:09:41] <mru> I've looked at gnuradio code
  • [22:09:46] <mru> I'm not looking again
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  • [23:27:28] <thurbad> is there a way to pull older rootfs's from narcissus?
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