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  • [04:28:50] <GeneralAntilles> The PoP is 128/256
  • [04:29:03] <GeneralAntilles> oops
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  • [10:45:20] <garren> lo all
  • [11:00:34] <garren> has anyone ported google android to the beagle board?
  • [11:02:36] <kulve> I don't remember anyone mentioning that
  • [11:06:53] <garren> ok
  • [11:12:51] <garren> how is everyone debugging there apps on the beagleboard? printf's, jtag or gdb/gdbserver?
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  • [11:32:58] <kulve> I'm using printfs and gdb. Some are using also the jtag. Depends probably a bit what you are debugging
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  • [12:39:24] <dcordes> are there known stability issues with the audio driver in the 2.6.27 OE kernel?
  • [12:40:12] <dcordes> I left my bb playing mp3 audio over night and it refuses to output any sound now
  • [12:40:25] <dcordes> nothing is visible in dmesg
  • [12:44:57] <dcordes> n'either in mplayer when trying to playback, but the status line doesn't show activity as if it was paused. when I kill it, it needs around 15 seconds.
  • [12:45:03] <dcordes> I will reboot
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  • [12:52:49] <garren> I'm running through the beginner wiki, and I'm trying to format my sd card corretly. I use fdisk to configure it correctly... but when I go mkfs.vfat -F 32 /dev/sdc1 it says mkfs.vfat: /dev/sdc1 contains a mounted file system. any ideas?
  • [12:54:14] <dcordes> works again after reboot
  • [12:54:25] <dcordes> koen: did you come across that problem?
  • [12:55:06] <dcordes> koen: I use this kernel http://ewi546.ewi.utwente.nl/~koen/uImage-2.6.26+2.6.27-rc7+r10+gite1c49d7d22af768188e2a54c167ed79919361e55-r10-beagleboard.bin with these modules http://ewi546.ewi.utwente.nl/~koen/modules-2.6.26+2.6.27-rc7+r9+gite1c49d7d22af768188e2a54c167ed79919361e55-r9-beagleboard.tgz
  • [12:56:44] <garren> never mind solved my problem, it needs to be unmounted first...
  • [13:04:22] <Crofton|work> garren, :)
  • [13:04:44] <Crofton|work> dcordes, I think there are general stability issues with that kernel
  • [13:05:01] <Crofton|work> althiough mine has been up a few days
  • [13:05:12] <Crofton|work> but, I haven't been working with it
  • [13:05:25] <garren> :-)
  • [13:06:04] <Crofton|work> hopefully git works again soon and we can update and start chasing issues
  • [13:09:42] <garren> are all drivers like spi and i2c working?
  • [13:10:25] <Crofton|work> not sure
  • [13:10:31] <Crofton|work> need to figure that out myself
  • [13:12:23] <garren> I'm still learning all of this hence the lame questions... but from what I understand ulimage is the kernel image, and the agstrom image is the programs and filesystem right?
  • [13:12:39] <garren> and angstrom is build using openEmbedded bitbake?
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  • [13:35:01] <dcordes> Crofton|work: everything else works fine for me. it's just the sound being unreliable
  • [13:35:08] <dcordes> garren: that's right
  • [13:49:48] <Crofton|work> we suspect we haven't fixed the problem just masked it
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  • [14:08:44] <garren> I have a mini usb cable but its not the correct type I'm going to strip and sort wire 4 and 5 together so that it can be a usb otg host... will this work?
  • [14:14:25] <adj_> garren: perhaps, if the cable really has 5 wires and all of them have really been connected
  • [14:14:54] <garren> ok hopefully they have else I'm in trouble...
  • [14:14:55] <adj_> my mini-b cables which I opened don't have the 5th pin connected to any wire
  • [14:16:11] <garren> so what did you do then?
  • [14:16:46] <adj_> I bought the correct cable with mini-a connector from ebay :)
  • [14:17:52] <garren> lol nice, I'm in South Africa not so easy
  • [14:19:55] <adj_> I'd say you have still two options: either solder the ID pin at beagle OTG connector to ground or force the beagle to host mode by software
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  • [14:28:59] <garren> adj_: ID pin is pin 4 right?
  • [14:30:55] <garren> how do you do it in software?
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  • [14:49:15] <garren> is anyone doing any cooling for there chip? mine runs quite hot just for an hour of use.
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  • [14:55:32] <jkridner> good morning
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  • [15:03:16] <Crofton|work> gm
  • [15:05:52] <jkridner> have I missed much over the last week?
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  • [15:08:35] <Crofton|work> hmm
  • [15:08:42] <Crofton|work> nothing super exciting
  • [15:08:50] <Crofton|work> .27 sound works better
  • [15:09:11] <jkridner> still some null pointer hangs?
  • [15:13:44] <Crofton|work> I haven't seen them
  • [15:13:57] <Crofton|work> usually die on the pegasus driver eventually
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  • [15:19:51] <koen> hey jkridner
  • [15:20:06] <jkridner> hi koen
  • [15:20:20] <koen> jkridner: you missed the revC proto surprise :)
  • [15:20:30] <jkridner> what surprise was that?
  • [15:20:45] <koen> 256mb ram
  • [15:20:53] <jkridner> ah. :)
  • [15:21:21] <koen> I suspect it's a sample from micron which gerald used to test stuff
  • [15:21:55] * koen improved boot time by 30 seconds by not using a splash screen for enlightenment
  • [15:22:05] <jkridner> yeah, we are looking to offer a second board with more memory (at a slightly higher cost).
  • [15:22:23] <koen> it's also faster than the 128MB chips
  • [15:22:38] <jkridner> yeah, got that from some e-mails from mru.
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  • [15:23:04] <jkridner> I don't think we clarified if it was due to different memory or ES3.0, but likely just the memory.
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  • [15:23:30] <jkridner> FF3 run much better?
  • [15:23:44] <koen> somewhat
  • [15:23:52] <jkridner> mru was looking for config info for 256MB. I guess that was worked out?
  • [15:23:55] <koen> it still relies heavily on Xrender accell
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  • [15:24:15] <koen> jkridner: mrus uboot patches seem to work well
  • [15:24:30] <koen> jkridner: something for the beagle newsfeed: http://www.johnstowers.co.nz/blog/index.php/2008/10/05/one-month-in-france/
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  • [15:27:36] <jkridner> added
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  • [15:36:12] <garren> I've managed to install the and get the angstrom demo running, what would be the next recommended step in learning how to use beagleboard and embedded linux?
  • [15:36:33] <jkridner> you could rebuild the bootloader and/or kernel.
  • [15:36:50] <jkridner> I happen to like the training on free-electrons.
  • [15:37:01] <jkridner> http://free-electrons.com/training
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  • [15:37:20] <mru> jkridner: yes, I got 256MB working
  • [15:37:59] <garren> cool thanks
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  • [15:41:52] <garren> the demo is it using uclib or libc?
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  • [15:48:25] <TangerinePentode> mmm, rev C
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  • [15:58:38] <jkridner> libc (glibc)
  • [15:58:42] <dirk2> mru: Seems that we need a v3 of U-Boot v1 patches (NAND, tab/space clean up). So I did space/tab cleanup and added your 256MB detection patches.
  • [16:00:22] <garren> has anyone got jffs2 and mtd-tools working with the NAND flash?
  • [16:01:57] <dirk2> all: Now I'm waiting somebody fixing U-Boot v1 NAND driver, then I'm ready to send v3 of U-Boot v1 patches. These will then contain fixed NAND driver, space/tab fixes and mru's 256MB detection/configuration.
  • [16:02:58] <jkridner> garren: yes.
  • [16:03:47] <jkridner> with the angstrom demo, you can install via 'opkg install mtd-utils mkfs-jffs2'
  • [16:04:01] <garren> so if I compile the kernel for the beagleboard I can enable mtd-tools and then create a jffs on the flash, because on the demo I have the mtd-tools seem to be missing
  • [16:04:03] <jkridner> you'll need an active network connection.
  • [16:04:17] <jkridner> you just need to install them.
  • [16:04:36] <garren> ok cool, whats a recommended wireless usb dongle to work with the beagleboad, I have a belkin usb not sure if it will work.
  • [16:04:38] <jkridner> the kernel includes the mtdblock drivers.
  • [16:06:28] <jkridner> http://code.google.com/p/beagleboard/wiki/BeagleBoardShoppingList includes a wireless adapter.
  • [16:06:37] <jkridner> I've heard of some wireless-N adapters working.
  • [16:06:51] <jkridner> look for good Linux support for the wireless adapter.
  • [16:07:10] <koen> avoid madwifi
  • [16:07:27] <koen> that has a binary blob that doesn't work on eabi
  • [16:07:44] <mru> atheros have released full source
  • [16:08:46] <koen> last week or so
  • [16:09:34] <koen> jkridner: ehm, did you have some plastic surgery? Your linkedin picture is a bit different from the old one ;)
  • [16:10:47] <jkridner> I didn't know I even had a linkedin picture.
  • [16:10:52] <jkridner> ah. the beagle. :)
  • [16:10:59] <koen> you look like boris now
  • [16:11:06] <jkridner> indeed. :)
  • [16:11:10] <jkridner> I didn't have a picture before.
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  • [16:16:50] <dirk2> jkridner: Not sure if you noticed http://groups.google.com/group/beagleboard/browse_thread/thread/32f9dec19c5a08c7# If you know anybody who might have some time to help, this would be really helpful. Nishant had already some proposals, but he is really busy.
  • [16:19:26] <TangerinePentode> what are the boot seetings for a serial console?
  • [16:20:06] <mru> 115200 8n1
  • [16:20:09] <mru> no flow control
  • [16:21:01] <TangerinePentode> no, i mean in u-boot to tell it to go to serial for console
  • [16:21:33] <mru> console=ttyS2,115200n8
  • [16:22:01] <TangerinePentode> that's what I have
  • [16:22:04] <TangerinePentode> ok
  • [16:22:05] <TangerinePentode> thx
  • [16:26:47] <TangerinePentode> got it
  • [16:26:55] <TangerinePentode> uImage/kernel mismatch
  • [16:29:59] <dirk2> ups, have to leave. will read the logs later. bye
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  • [16:33:45] <koen> hmmm
  • [16:33:53] <koen> last opencv release was in 2006
  • [16:55:15] <nathanm> Still works okay on BeagleBoard. Just s l o w.
  • [16:59:01] <koen> it seems to use ffmpeg internally
  • [16:59:11] <koen> so it could benefix from mrus NEON patches
  • [16:59:53] <koen> (although I wonder if many webcams stream h264 directly to usb)
  • [17:00:24] <nathanm> UVC webcams either send motion jpeg or raw YUYV. OpenCV prefers raw.
  • [17:02:27] <nathanm> OpenCV has a collection of low-level kernels based on Intel Performance Primitives (optimized SSE). So people can port the primitives they need to NEON. Actually a lot of it is SIMD integer code so it would fit on the DSP too.
  • [17:07:35] <TangerinePentode> does anyone know where I might start for low level programming of the DSP?
  • [17:07:43] <TangerinePentode> i.e. below the TI code
  • [17:08:24] <Crofton|work> TangerinePentode, start by looking into NEON
  • [17:09:04] <Crofton|work> How does Intel IPP releat to openmax
  • [17:09:45] <TangerinePentode> I thought neon was a co-processor or inline?
  • [17:10:45] <Crofton|work> you can use NEON directly from ARM asm
  • [17:10:52] <TangerinePentode> i want to write an alternate OS for the DSP
  • [17:11:02] <Crofton|work> hardware wise it is a coprocessor
  • [17:11:05] <Crofton|work> ah
  • [17:11:17] <Crofton|work> not sure where to start then
  • [17:11:22] <nathanm> Crofton|work: They are competing ways to do similar things -- i.e., optimized kernels for image processing. They are not directly compatible but have some overlap, mostly around video compression.
  • [17:11:30] <Crofton|work> but, having an open alternative would be awesome
  • [17:11:46] <Crofton|work> nathanm, thanks
  • [17:12:23] <nathanm> IPP is a little broader in that it covers some scientific and statistical kernels, which is useful for OpenCV.
  • [17:12:32] <Crofton|work> yeah
  • [17:12:50] <Crofton|work> I skimmed IPP ToC and am now skimming openmax
  • [17:13:25] <Crofton|work> IPP looks more useful for software defined radio
  • [17:13:28] <jkridner> dirk2: thanks, I had not noticed
  • [17:13:42] <nathanm> OpenMAX is definitely more focused.
  • [17:15:02] <nathanm> For OpenCV users, it would be nice to port IPP. It would be even nicer to run integer kernels on the DSP and floating point kernels on NEON, since a lot of OpenCV tasks break down about 50/50 between integer SIMD and FP SIMD.
  • [17:15:06] <Crofton|work> so there is an arm version of ipp?
  • [17:15:22] <nathanm> Yes, Intel provides a fallback that compiles straight C code -- no SIMD optimizations.
  • [17:15:41] <TangerinePentode> i'm thinking more like a simple task scheduler
  • [17:15:52] <TangerinePentode> nothing fancy
  • [17:15:58] <Crofton|work> is ipp open source?
  • [17:16:06] <nathanm> Yes, it's open source. Also, Intel used to brag about how StrongARM could run IPP, so maybe the fallback code is even a little ARM optmized.
  • [17:16:19] <Crofton|work> interesting
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  • [17:17:53] <nathanm> Sorry, I'm incorrect on that last bit. I guess the API and reference implementation are open source, but Intel only gives you binaries for their Intel-optimized version.
  • [17:18:09] <Crofton|work> ah
  • [17:18:46] <Crofton|work> only non-commercial download for Linux
  • [17:18:56] <Crofton|work> so you would need to re-implement from the spec
  • [17:19:10] <Crofton|work> there is talk on the GNU Radio list of this
  • [17:19:44] <nathanm> That's what it sounds like.
  • [17:20:05] <nathanm> I also found optimized binaries for XScale ARM for Linux.
  • [17:20:16] <nathanm> But NEON should be able to run rings around that.
  • [17:20:27] <Crofton|work> do you know what routines open cv uses from ipp?
  • [17:21:08] <nathanm> OpenCV itself is a package of different routines, and each use different bits of IPP.
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  • [17:23:46] <Crofton|work> http://lists.gnu.org/archive/html/discuss-gnuradio/2008-09/msg00505.html
  • [17:23:56] <nathanm> The specific kernels I'm interestd in do integer gaussian blurs, integer linear convolutions, and floating point matrix operations.
  • [17:24:37] <nathanm> Wow, that looks like a good project to watch. Thanks for the tip.
  • [17:24:54] <Crofton|work> I'll try and let you know if it goes anywhere
  • [17:39:42] <koen> nathanm: nico pitr said he could quite easily write better optimized code than IPP
  • [17:42:26] <koen> heh
  • [17:42:54] <koen> I just realised that there now is another option of confusing arm stuff
  • [17:43:08] <Crofton|work> such as ?
  • [17:43:17] <koen> arm<number> vs armv<number> vs cortex-a<number>
  • [17:43:53] <koen> Crofton|work: see john gilmores mail about NEON and arm-9
  • [17:44:47] <Crofton|work> Cortex???-A9 NEON??? Media Processing Engine Technical Reference Manual
  • [17:44:47] <Crofton|work> ?
  • [17:45:08] <Crofton|work> John can cause all the trouble he wants
  • [17:46:27] <hli> arm-v9 ?
  • [18:06:43] <nathanm> TDMI7 = ARMv4. Thanks ARM.
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  • [18:22:11] <ds2> no such thing as armv9
  • [18:22:17] <ds2> there is an arm9
  • [18:22:46] <hli> so arm-9 was just arm9
  • [18:23:20] <ds2> yep. but arm9's can be either ARMv5 or ARMv4 depending on which ARM9 core
  • [18:23:21] <ds2> ;)
  • [18:23:42] <ds2> cortex shouldn't be too confusing..., as all cortex's are armv7
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  • [18:29:07] <igor321> does angstrom demo output on the s-video?
  • [18:29:34] <Crofton|work> igor321, I a pretty sure it does not
  • [18:30:04] <igor321> does any distro?
  • [18:30:53] <koen> if you boot the angstrom demo with the TI kernel
  • [18:34:28] <igor321> is it somewhere here? http://code.google.com/p/beagleboard/downloads/list
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  • [18:56:59] <Crofton|work> bother likes at around 800usd to get to the Netherlands the week on the EL conference :)
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  • [19:30:13] <TangerinePentode> is there a conferance coming up in San Francisco?
  • [19:30:40] <nathanm> Do you mean the ARM Developer's Conference in Santa Clara?
  • [19:31:04] <nathanm> http://www.rtcgroup.com/arm/2008/
  • [19:31:10] <TangerinePentode> i thought there was a beagle thing
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  • [20:20:45] <garren> if you developing a commercial embedded linux product can you use angstrom?
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  • [20:30:00] <Crofton|work> sure
  • [20:30:20] <Crofton|work> as long as you respect the licenses of the installed on the hw
  • [20:30:42] <Crofton|work> Angstrom makes it easy for you to track the source of the sw installed
  • [20:33:03] <garren> ok cool
  • [20:33:49] <garren> if I want to compile the linux kernel for the beagleboard do I just download the latest kernel and then recompile for arm9?
  • [20:34:02] <garren> I mean build for arm9?
  • [20:34:37] <garren> sorry stupid question its in the wiki sorry...
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  • [20:38:58] <garren> cool I'm off for the night.. cheers all
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  • [22:17:37] <torus> hi folks.
  • [22:17:57] <mru> hi
  • [22:18:23] <torus> Can you guys give me some guide how to cross-compile stuff? I'd like to build GCC for ARM and I need to compile gmp first. Unfortunately I'm to dumb to pass the right parameters to ./configure.
  • [22:18:32] <torus> hi mru.
  • [22:19:02] <torus> still pushing pixels?
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  • [22:37:26] <torus> never mind - already figured it out..
  • [23:04:38] <Olipro> mru: what is thrashbarg?
  • [23:08:31] <torus> I'm amazed.. it compiles...
  • [23:08:41] <torus> half an hour and I will have gcc on the beagle..
  • [23:22:20] <vlad> hope you're building 2007q3!
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  • [23:26:23] <torus> I'll give it a try and compile GCC 4.3.2. MPFR and GMP are already working fine.
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