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  • [00:13:38] <shankar> when i boot linux on my beagle , i am getting "Warning: unable to open an initial console." and no active console
  • [00:13:50] <shankar> could you help me to resolve ?
  • [00:14:15] <mru> what is your kernel command line?
  • [00:14:19] <mru> bootargs in u-boot
  • [00:14:23] <shankar> my boot args : console=ttyS2,115200n8
  • [00:14:33] <ds2> Your /dev tree is incomplete or bad
  • [00:19:10] <shankar> thanks
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  • [00:26:19] <shankar> ohh .. my fs has /dev empty
  • [00:35:09] <ds2> heh...that'd do it
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  • [00:53:40] <Beagle5> hello - I just got my beagleboard a few days ago and have had a little trouble with the compiler
  • [00:53:50] <Beagle5> using CodeSourcery 2008q1
  • [00:53:55] <mru> it's broken
  • [00:53:59] <mru> use 2007q3
  • [00:54:19] <Beagle5> I tried that, and that would not install on my computer
  • [00:54:45] <mru> then you need to figure out why
  • [00:54:49] <mru> the 2008 releases are no good
  • [00:55:13] <Beagle5> okay maybe that's my problem
  • [00:55:43] <Beagle5> it says that it was "unable to create file links" and then aborted without telling me what I could do to fix it
  • [00:55:48] <Beagle5> but the 2008 installed fine
  • [00:55:54] <Beagle5> I'll try to revert
  • [00:56:29] <Beagle5> anybody else have that problem? I tried google-ing it but to no avail
  • [00:57:12] <mru> I think people prefer to use the tarball
  • [00:57:20] <mru> I build it from source
  • [00:57:26] <Beagle5> okay, I'll try that
  • [00:57:41] <mru> oh, and the binutils that comes with 2007q3 is a bit buggy too
  • [00:57:45] <Beagle5> I'm new to linux also - so I chose the easiest route first...
  • [00:57:54] <mru> you're better off with plain gnu binutils
  • [00:58:07] <Beagle5> where can I get that/
  • [00:58:13] <mru> from gnu
  • [00:59:09] <Beagle5> I'm downloading the source tar from the CodeSourcery now
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  • [01:05:10] <Beagle5> I guess I already have the gnu binutils for x86 architecture, I just need it for the multi-architecture, right/
  • [01:10:36] <shankar> Here am back with "Warning: unable to open an initial console." . I have same FS . When i use as RAM disk bin ,everything works fine . When i place it on MMC - ext2 , am getting back the error
  • [01:10:51] <shankar> any suggestions ?
  • [01:16:40] <ds2> figure out why your /dev is bad or missing.
  • [01:16:58] <ds2> did you build the MMC card as root?
  • [01:17:16] <ds2> did you copy things onto there with the right options or did you follow up with mknod
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  • [01:55:08] <shankar> just varified
  • [01:55:16] <shankar> did you build the MMC card as root? - how can i do this ?
  • [01:56:05] <shankar> did you copy things onto there with the right options -> what will be the right options
  • [02:01:47] <shankar> thanks a lot
  • [02:02:10] <shankar> it was problem with build the MMC card as root?
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  • [02:11:26] <ds2> yep. mmc root works fine for me
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  • [02:52:15] <ZeZu> mmc should boot if its written ok even if i haven't gotten into rs232 first ?
  • [02:59:02] <ds2> maybe
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  • [02:59:22] <ds2> depends on the Uboot settings
  • [03:08:36] <ZeZu> stock revB
  • [03:11:17] <ZeZu> with user button and no usb/rs232 boot it should boot mmc before nand as well right?
  • [03:52:10] <ds2> it will load and run MLO/UBoot from MMC but the kernel loading depends on the U-boot config
  • [03:54:36] <ZeZu> i see .. i can't get in to config u-boot, i dont suppose it will read from a config file? and do the binaries of angstrom output the console through dvi or only through serial ?
  • [03:58:15] <ds2> no, it looks for config on the third partiton (I think) ofthe NAND
  • [03:58:33] <ds2> I suppose you could build a special U-boot to ignore the settings and do what you want. Use the source!
  • [04:02:16] <ZeZu> true ;)
  • [04:03:09] <ZeZu> maybe i'll poke the usb boot a bit, wrote a usb bootloader for a work project not long ago
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  • [04:30:08] <ds2> USB boot has the same issue
  • [04:30:36] <ds2> boot here means the processor will jump to some code, which in this case is U-boot and U-boot acts as the config for U-boot says
  • [04:39:20] <ZeZu> i imagined usb boot would grab an image from the host and jump to it directly
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  • [04:54:03] <ds2> yes but that image is U-boot
  • [04:54:39] <ds2> the Linux kernel is not setup to take control at that point; U-boot does some basic configuration prior to transfering to the kernel.
  • [04:55:37] <ds2> but if you want to try, you can do the same with the MMC/SD boot stuff - have MLO load your special kernel instead of U-boot... but you will have to get the kernel to configure more stuff along with knowing the right address to locate the kernel plus build a naked image instead of a uImage
  • [04:59:38] <ZeZu> right
  • [05:00:10] <ZeZu> I saw some little demo to blink leds or such, was going to try to run that
  • [05:00:50] <ZeZu> hopefully i can find out why serial adapter isn't working
  • [05:14:02] <ds2> just wirewrap something up
  • [05:17:54] <ZeZu> pc doesn't have any serial ports on it either :|
  • [05:18:09] <ZeZu> so i'm using ftdi adapter, (which i've never had any trouble with before)
  • [05:19:05] <ZeZu> i'm sure the mboard probably does have rs232 somewhere, but would require finding another connector
  • [05:40:23] <TangerineTriode> how do people copy stuff onto the board?
  • [05:40:36] <TangerineTriode> it seems a mess to reboot between compiles
  • [06:18:11] <ds2> Z modem? USBnet? USB stick?
  • [06:25:44] <TangerineTriode> i got usbnet working
  • [06:26:27] <TangerineTriode> how do I pull down all the changes in a parent tree in git?
  • [06:30:48] <TangerineTriode> I don't care how smart Linus is, git is evil
  • [06:31:25] <ds2> git pull
  • [06:31:29] <ds2> it is similar to cvs update
  • [06:32:32] <TangerineTriode> it told me my Makefile wasn't up to date
  • [06:33:20] <ds2> did you change your Makefile?
  • [06:33:31] <ds2> do 'git diff' and see if it reports any changes
  • [06:34:25] <TangerineTriode> yes, i did
  • [06:34:43] <TangerineTriode> changed the compiler prefix
  • [06:34:47] <ds2> do you want to keep it?
  • [06:34:51] <ds2> if so do this -
  • [06:34:55] <TangerineTriode> merge?
  • [06:34:57] <ds2> git stash; git pull
  • [06:35:10] <ds2> stash saves your changes to a temporary place; the pull will do the update
  • [06:35:25] <ds2> then after that is done, do 'git stash apply' and it will try to re-integrate your changes
  • [06:36:31] <TangerineTriode> actually, that's pretty cool
  • [06:37:30] <TangerineTriode> hmmm
  • [06:37:41] <ds2> the hard part is figuring out what incantations to give; once you get pass that, git is pretty useable (unlike CVS that requires constant thought or you screw up everything :/))
  • [06:38:26] <TangerineTriode> does anyone have a cheatsheat of useful incantations?
  • [06:39:20] <ds2> not really... I picked it up from other people and from listening to a quick 1 hour tutorial from Linus at LPC
  • [06:39:27] <TangerineTriode> http://ktown.kde.org/%7Ezrusin/git/git-cheat-sheet-medium.png
  • [06:40:29] <ds2> that isn't bad... I think it needs more context for when to use it
  • [06:41:47] <TangerineTriode> actually, if you google "git cheat sheet" it seems everyone has one
  • [06:42:31] <ds2> it goes back to context... that cheat sheet is more like a quick man page
  • [06:42:51] <TangerineTriode> yeah
  • [06:42:58] <TangerineTriode> thanks for the git help
  • [06:43:02] <TangerineTriode> seems to be working
  • [06:44:43] <ds2> np
  • [06:45:06] <TangerineTriode> http://jan-krueger.net/development/git-cheat-sheet-extended-edition
  • [06:45:13] <TangerineTriode> that one looks good
  • [06:45:29] <TangerineTriode> and it built cleanly (omap3 kernel)
  • [06:47:41] <ds2> the real test is does it boot ;)
  • [06:47:59] <TangerineTriode> true, but I don't seem to have mkimage
  • [06:48:17] <TangerineTriode> and I have to set my build system up to install onto my sd card
  • [06:48:33] <TangerineTriode> and I'm going to turn into a pumpkin in 12 minuts
  • [06:50:39] <TangerineTriode> http://www.gnome.org/~federico/misc/git-cheat-sheet.txt
  • [06:50:46] <TangerineTriode> a meta-cheat sheet
  • [06:51:18] <geist> git takes a bit of getting used to
  • [06:51:31] <geist> but once you do, it's really a great tool
  • [06:51:49] <TangerineTriode> i like the stash/pull
  • [06:51:54] <TangerineTriode> that's pretty slick
  • [06:54:11] <geist> stash is neat. the real neat one is rebase
  • [06:54:20] <geist> which is pretty gnarly to use, but is incredibly powerful
  • [06:54:48] <TangerineTriode> what does it do?
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  • [06:55:36] <geist> kind of hard to explain, but in the usual use case it takes all the changes you've made, unrolls them, switches the branch to the new version of the original branch, and then replays your changes, one at a time
  • [06:55:55] <geist> and then history is rewritten, as if you had made your changes on top of the new original branch
  • [06:56:03] <geist> or at least that's the common way it's used
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  • [06:56:32] <geist> with git you can go back and modify history all you want, it has no real linear concept of time between branches
  • [06:56:44] <geist> it's essentially an elaborate patch manager, sort of
  • [06:58:39] <TangerineTriode> that's f*ing incredible
  • [06:59:06] <TangerineTriode> that's perfect for OS work
  • [06:59:13] <ds2> mkimage is from the U-boot sources, build u-boot to get it
  • [06:59:21] <TangerineTriode> thanks
  • [06:59:59] <TangerineTriode> i've got a few copies lying around for dm355, those will probably work
  • [07:00:08] <TangerineTriode> but, I should just build u-boot
  • [07:00:08] <ds2> yeah, mkimage is pretty universal
  • [07:00:22] <TangerineTriode> turning into pumpkin now...
  • [07:00:40] <ds2> rebase is fine as long as you are a terminal user... maintainer should not rebase if they have people working off their tree
  • [07:03:09] <TangerineTriode> night everyone
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  • [08:35:20] <parisfrance> does someboard tried to make a robot with the beagleboard?
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  • [10:14:15] <parisfrance> is there an expansion board to be able to use spi, i2c in same time?
  • [10:18:14] <adj__> i am just drawing my expansion board and i'll be adding level shifters for spi and i2c
  • [10:30:30] <parisfrance> @adj_ do you have any pictur of it?
  • [10:34:36] <adj__> parisfrance: not yet, but first schematics revision and initial component placement should be ready perhaps tomorrow
  • [10:35:27] <parisfrance> are you going to put information on the website
  • [10:36:35] <adj__> yes, i'll be sharing it and i'm also happy to receive any feedback before finalizing the design
  • [10:38:56] <parisfrance> ok cool
  • [10:39:19] <parisfrance> have you done this expansion board for robotic use?
  • [10:42:23] <adj__> more or less, yes. Beagle is my first step to embedded linux and some kind of a bot doing some stupid/funny staff will be my first experiment :)
  • [10:43:29] <parisfrance> have you done a website for you bot?
  • [10:45:10] <adj__> no yet that either. The whole system is just at a planning phase and I'll be adding more features as i get some ideas
  • [10:45:44] <adj__> first task is to finish this expansion board and see if i'll manage to use GPIOs and i2c
  • [10:49:59] <parisfrance> i search since a while to build a bot... i checked a lot of board... my last choice is beagle and fox board
  • [10:50:14] <dignus> fox board?
  • [10:50:31] <parisfrance> http://foxlx.acmesystems.it/?id=4
  • [10:50:41] <mru> how many animal boards are there?
  • [10:50:42] <dignus> let me see
  • [10:51:46] <adj__> i almost ordered a fox board before a friend of mine tipped me off about beagle
  • [10:51:55] <mru> the beagle is much more powerful
  • [10:51:57] <parisfrance> on the fox, i think it's easier to add peipherials... it has network and 2 usb port...
  • [10:52:03] <parisfrance> ya, a lot more
  • [10:52:41] <dignus> yeah
  • [10:52:42] * mru wonders what that cpu is
  • [10:52:52] <dignus> but memory + cpu on the beagle is way better
  • [10:53:05] <parisfrance> that why i think i will get one... my only fear it's not easy for a guy like me who don't have a lot of experience in electronic... to add sensor, moto... to the car to building a robot
  • [10:53:30] <parisfrance> motor... to the card...
  • [10:53:53] <dignus> 100MIPS RISC CPU is about 100 mhz
  • [10:54:08] <dignus> parisfrance: that's the fun in it
  • [10:54:58] <mru> ah, it's a cris cpu
  • [10:55:39] <parisfrance> dignus: ya but i don't want to burn the board :)
  • [10:55:44] <dignus> hehe
  • [10:55:45] <dignus> oh
  • [10:55:53] <dignus> that'll be part of the learning process ;)
  • [10:56:15] <parisfrance> ya but the learning process could be expensive
  • [10:56:22] <dignus> big advantage of the beagle is that you won't be limited by resources
  • [10:56:42] <dignus> unless you want to do very fancy stuff
  • [10:57:03] <mru> I bet the fox can't play hidef video
  • [10:58:58] <parisfrance> it's sure... but i don't think the primary goal of this board
  • [10:59:45] <jkridner> good morning all
  • [10:59:53] <mru> morning jkridner
  • [11:00:04] <parisfrance> i will surely take the next release of the beagle board... if i found more information to add sensor to it
  • [11:00:32] <jkridner> what about the gumstix overo?
  • [11:02:17] <jkridner> 100MIPS and USB1.1? Are you serious?
  • [11:03:19] <jkridner> sensors are pretty easy to add to I2C and SPI.
  • [11:03:45] <parisfrance> that the kind of information to have for the beagle...
  • [11:04:08] <jkridner> Beagle performance is >10X on both CPU and USB.
  • [11:04:35] <jkridner> so, you are looking for a wiki page or something that describes connecting up some sensors?
  • [11:04:49] <parisfrance> i'm not an expert, but surelly the beagle need another card who will connect to the expansion port... this add-on card will serve to connect sensor and servo?
  • [11:05:03] <jkridner> temperature? motor?
  • [11:05:07] <jkridner> what kind of sensors?
  • [11:06:44] <parisfrance> Range Finders, light sensor
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  • [11:08:20] <parisfrance> digital servo for the wheel...
  • [11:08:24] <parisfrance> like http://cgi.ebay.fr/RC-mini-digital-servo-DFM1810-2-2kg-couple-compact-size_W0QQitemZ200262855463QQcmdZViewItem?hash=item200262855463&_trkparms=72%3A1367|39%3A1|66%3A2|65%3A12|240%3A1318&_trksid=p3286.c0.m14
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  • [11:16:05] <adj__> parisfrance: initial draft for my expansion board: http://www.hervanta.com/~antti/temp/add-on_board.pdf
  • [11:17:40] <adj__> needs still some double checking and bypass capacitors etc
  • [11:19:30] <parisfrance> ok thank
  • [11:21:54] <parisfrance> the max V your card support is 9V?
  • [11:22:46] <adj__> minimum input is 9V, max input is 18V
  • [11:24:13] <parisfrance> ok sorry i miss the 18 in electronic plan
  • [11:24:29] <parisfrance> so it's enough for 2 servo and a couple of sensor
  • [11:26:14] <adj__> yeah. atmega16 is there to provide 50 Hz PWM with i2c controlling for 5 servos. atmel will also control some relays, does a/d conversion etc
  • [11:28:37] <parisfrance> how much Amp can it deliver?
  • [11:30:11] <adj__> the Tracopower TEL15-1211 can deliver max 3A
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  • [11:31:37] <adj__> so that won't be enough for many motors
  • [11:33:43] <parisfrance> i check a couple of servo... but they only specify V...
  • [11:34:01] <parisfrance> how i suppose to know the A?
  • [11:35:39] <adj__> it depends on the servo motor used. For example: http://www.pololu.com/catalog/product/695
  • [11:36:12] <adj__> that takes a maximum of 1.1A at 6 volts
  • [11:36:46] <adj__> the more load it has the more it takes current
  • [11:38:59] <parisfrance> so with your card, you can put 2 servo like this one... will rest .8A and 6V for other thing...
  • [11:43:48] <adj__> i'm planning to power also the beagle using that TEL15-1211. If more current is needed for e.g. servos i'll propably add a linear regulator like 7805 + capacitors for those
  • [11:44:38] <adj__> and that 1.1 amps is stall current, normally it will be much less
  • [11:50:36] <parisfrance> ok so it will still less V for other component
  • [11:53:40] <parisfrance> that will be great i think if you add linear regulator... because i think if you really put 5 servo... you can easily be over this limit
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  • [12:04:38] <adj__> trouble is that i need to use 12 volts battery as power supply (if i end up using motor system i've been planning to) and 1 amp through 5v linear regulator creates awful lot of heat...
  • [12:11:52] <parisfrance> or you can use 2* 12 volt battery...
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  • [13:12:41] <garren> lo all
  • [13:12:57] <mru> hi garren
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  • [13:16:06] <mru> morning khasim
  • [13:19:37] <garren> what are the advantages of creating your own image using OE, customization?
  • [13:24:10] <garren> Sorry another question.. This guide (http://elinux.org/BeagleBoardAndOpenEmbeddedGit) uses git over the normal Bitbake anyone know why and which is better
  • [13:24:49] <mru> uh? git is used to manage the collection of "recipes"
  • [13:24:58] * Xenion (n=robert@p579FC562.dip.t-dialin.net) has joined #beagle
  • [13:25:01] <mru> bitbake is what actually builds the stuff
  • [13:28:11] <garren> oh ok makes sense, thanks
  • [13:31:54] * igor321 (n=igor@150-211.dsl.iskon.hr) Quit ("leavin'")
  • [13:36:42] <Psychiatras> hi. I have question about openembedded and bitbake: I done all steps from http://elinux.org/BeagleBoardAndOpenEmbeddedGit and after I run "bitbake console-image" I got some strange errors and new dir "${OE_HOME}" was created.
  • [13:37:35] <Psychiatras> profile.sh is correct
  • [13:39:29] <adj__> paste your profile.sh to pastebin
  • [13:41:20] <Psychiatras> http://pastebin.com/d8294dbd
  • [13:42:43] <adj__> what shell are you using? bash?
  • [13:43:01] <Psychiatras> yes
  • [13:43:49] <Psychiatras> /bin/sh -> bash
  • [13:44:27] <hli> i have a question regarding USB 2.0 EHCI HS connector missing on B4 rev. I have
  • [13:45:07] <hli> could it be possible to add one - not to get a working host USB but to get power for the motherboard ?
  • [13:45:44] <hli> so you could free the OTG connector and connect it on a HUB
  • [13:46:07] * slothlove (n=srussell@user-387ggve.cable.mindspring.com) has joined #beagle
  • [13:46:20] <mru> hli: you can't power the board through the ehci
  • [13:46:36] <mru> there's a 5V DC input socket you can use
  • [13:46:37] <hli> oh right ! i miss the point
  • [13:47:04] <hli> host provides power, device gets power
  • [13:47:12] <mru> fitting an ehci connector could let you get some power from the board
  • [13:48:26] <hli> well i cannot find a working power adapter in the place i'm.
  • [13:49:21] <mru> I found one in the heap of power supplies I've forgotten what gadget they go with
  • [13:49:29] <hli> and i cannot find the exact reference of a "french" working adapter
  • [13:49:41] * RogerMon1 (n=a0740758@nat/ti/x-5495ee3da94a5649) has joined #beagle
  • [13:51:55] <hli> so i mostly stuck with this BB :/ I heard a guy from here was working on a linux image which could provide sceen, keyboard and mouse through usb via a pc to bb
  • [13:52:17] <hli> it would be a solution for me as until i find a working adapter
  • [13:52:22] * bazbell (n=a0192809@nat/ti/x-21fb2f0af1c24fed) Quit ("Leaving.")
  • [13:52:53] <hli> it would be great to develop on BB and test
  • [13:53:15] <hli> as I mostly want to develop and test, it should be enough for me
  • [13:54:41] <adj__> just fitting ehci connector won't be enough as vbus on ehci connector is not connected to anywhere
  • [13:54:54] <hli> yes i know
  • [13:55:38] <hli> and in fact i wrongly thought my PC could provide power to BB through this connector but i was totally stupid to think so
  • [13:56:39] * RogerMonk (n=a0740758@nat/ti/x-b9b1b2a084bfd537) Quit (Remote closed the connection)
  • [13:57:19] <hli> so the only option i can see is to have a special Linux on my pc which is connected to my bb through USB and allows to use my keyboard and mouse for bb
  • [13:57:33] <hli> and filesystem too
  • [13:57:58] <adj__> i guess it could be possible to mount ehci and add some jumper wire to bypass currently unmountd U6 power IC
  • [13:58:32] <adj__> that would however violate almost every section at usb specifications :)
  • [13:58:56] <hli> so far B4 has no EHCI
  • [13:59:10] <jkridner> can you not order from Sparkfun in France (http://www.sparkfun.com/commerce/product_info.php?products_id=8639) ?
  • [13:59:21] <hli> i'm looking that
  • [14:00:11] <hli> it was tested ?
  • [14:00:13] <mru> or make a shopping trip to a better supplied country nearby
  • [14:00:39] <jkridner> yes, I use it regularly
  • [14:00:49] <hli> ok
  • [14:00:59] <jkridner> it is more convenient to me to find a USB power connection than a wall adapter.
  • [14:01:08] <jkridner> I typically use the power output from my USB hub.
  • [14:01:20] <jkridner> not all USB hubs supply power prior to enumeration, but most do.
  • [14:01:57] <jkridner> I use the BeagleBoard's OTG port as the host (upstream) for the hub.
  • [14:01:58] <hli> yes i prefer this soultion
  • [14:02:11] <jkridner> hub powers the BeagleBoard, keyboard, mouse, network adapter, etc.
  • [14:02:46] <hli> you mean your hub has a power connector to power the other devices ?
  • [14:03:09] <jkridner> maybe I should add some common configurations to BeagleBoard.org in pictures. issue is I don't want people to think those are the only possibilities.
  • [14:03:34] <jkridner> no, USB just provides power to devices via USB itself.
  • [14:03:48] <hli> no you don't understand me
  • [14:03:53] <jkridner> so, I have one power connection from the wall to the hub.
  • [14:04:10] <jkridner> then the hub powers (via USB) BB, keyboard, etc.
  • [14:04:19] <jkridner> I use a powered hub.
  • [14:04:25] <hli> your HUB has an external power connector to power your hub so it can then power USB devices
  • [14:04:41] <hli> ok
  • [14:05:31] <jkridner> right.
  • [14:05:53] <hli> ok so i need the wire and a powered hub to make everything happy
  • [14:05:57] <jkridner> you should always use a powered hub with Beagle, since it only provides a maximum of 100mA.
  • [14:06:16] <jkridner> yes.
  • [14:06:56] <jkridner> might have been handy if the alternate power connector would have simply been a USB jack as well.
  • [14:07:38] <jkridner> it'll be nice if someone does an Overo daughterboard designed that way.
  • [14:07:51] * jkridner is getting Overo crazed.
  • [14:08:21] <jkridner> (probably too much so for a product that isn't yet available)
  • [14:09:19] <hli> yes it would have been easier if it was a simple USB jack just for power, I would have been glad
  • [14:10:31] <hli> what else could you advise me to take ?
  • [14:10:39] <hli> apart from the cable ?
  • [14:12:00] <jkridner> mini-A to standard-A-socket adapter.
  • [14:12:12] <hli> is there a box or something like that at sparkfun ?
  • [14:12:20] <hli> to put bb in it
  • [14:12:22] <jkridner> you wouldn't need it if your hub has a mini-A to mini-B cable.
  • [14:12:45] <jkridner> I keep links to various hardware to buy with the beagleboard at http://beagleboard.org/hardware
  • [14:13:01] <jkridner> http://www.vernier.com/accessories/access.html?usb-mini&template=basic.html is the adapter I'm talking about
  • [14:13:43] <jkridner> digikey sells a mini-A to mini-B cable, but then you typically need a mini-B to standard-B adapter.
  • [14:14:12] <jkridner> we've been working on getting digi-key to stock both of these cables for months now.
  • [14:14:21] <jkridner> they are working on it but had some supplier issues.
  • [14:15:44] <jkridner> eventually I think bundles will become more prevalent.
  • [14:16:13] <jkridner> Special Computing will probably be the first to offer a relatively complete bundle.
  • [14:16:34] <jkridner> considering they are the first to offer a case and have on-line ordering.
  • [14:17:47] * Beagle8 (n=Beagle8@adsl-99-141-240-196.dsl.emhril.sbcglobal.net) has joined #beagle
  • [14:17:54] <hli> yes i see it now
  • [14:18:17] <hli> i wish the cable and this case could be at the same shop :/
  • [14:19:05] <Beagle8> When I get my beagleboard, right out of the box, can I connect it through usb to my pc and it show as a device.
  • [14:21:11] <Beagle8> Hello?
  • [14:21:13] <pbrook> out the box it conly contsains a simpe test image.
  • [14:21:27] <Beagle8> what does that mean?
  • [14:22:57] <pbrook> Meaning you'll probably want to boot a linux image to actually do antything useful with it.
  • [14:23:12] <pbrook> Read the FAQ and wiki.
  • [14:24:01] * shankar (n=shankar@189.157.8.103) has joined #beagle
  • [14:24:17] <Beagle8> Ok
  • [14:24:38] <Beagle8> Do you have a recommendation on a linux distro?
  • [14:24:44] <hli> oh god ! the cable would cost ???2.51 (NOT TRACKED, NOT INSURED by First Class Mail International Package), ???20.67 (Tracking Number provided, Insured by Express Mail International (EMS)) !?
  • [14:24:55] <pbrook> Beagle8: see above.
  • [14:25:07] <Psychiatras> What I'm doing wrong: http://pastebin.com/mfc01885 ???
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  • [14:32:11] <Crofton|work> lines 12 and 14 are the key
  • [14:32:26] <Crofton|work> I think OE_HOME is not correct
  • [14:34:26] <Psychiatras> hm...
  • [14:35:00] <Psychiatras> line 3 and 4 is echo of the OE_HOME. what is wrong?
  • [14:35:53] * bazbell (n=a0192809@nat/ti/x-77e49a26929968d8) has joined #beagle
  • [14:36:04] <Crofton|work> it should expand to the directory the openembedded dir is in
  • [14:36:44] <Crofton|work> basically, it is looking in / for openemebdded
  • [14:36:57] <Crofton|work> and if it is not there, bitbake can't find the files it needs
  • [14:38:03] <Psychiatras> dirs in ${OE_HOME}: beagleboard openembedded opt
  • [14:41:22] <Psychiatras> openemebdded should be in / or in ${OE_HOME} ?
  • [14:47:31] <hli> jkridner: what about this one : http://www.sparkfun.com/commerce/product_info.php?products_id=7834
  • [14:48:20] <jkridner> The Olimex hasn't been debugged with ARM Cortex-A8 yet, as far as I know.
  • [14:48:41] <jkridner> it (and all accessory items) have been discussed at length on the mailing list.
  • [14:49:01] <jkridner> most time on OpenOCD has been spent using the Flyswatter.
  • [14:49:20] <jkridner> http://elinux.org/BeagleBoard#JTAG
  • [14:49:46] <Crofton|work> OE_HOME
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  • [14:56:05] <Psychiatras> Crofton|work => so i don't understand what I'm doing wrong...
  • [14:56:35] <pbrook> hli: The olimex parts only claim 2-5V jtag, si it's unclear whether they'd work wiht the beagle (which is 1.8V).
  • [14:57:05] <hli> anyway, i'm not considering it
  • [14:57:23] <hli> but thanks to point it out
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  • [15:00:53] <Psychiatras> n
  • [15:03:30] <Crofton|work> echo $OE_HOME
  • [15:03:37] <Crofton|work> sorry I am packing for a trip
  • [15:05:37] <Psychiatras> echo $OE_HOME /home/psy/oe
  • [15:07:03] <Crofton|work> ls $OE_HOME
  • [15:07:14] <Psychiatras> beagleboard openembedded opt
  • [15:07:33] <Crofton|work> ls $OE_HOME/openembedded
  • [15:07:55] <Psychiatras> COPYING.MIT MAINTAINERS README classes conf contrib files packages removal.txt site
  • [15:08:50] <Crofton|work> echo $BBPATH
  • [15:09:36] <Psychiatras> /home/psy/oe/beagleboard/:/home/psy/oe/beagleboard/beagleboard:/home/psy/oe/openembedded
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  • [15:13:23] <shankar> when i execute aplay , following error is popping (_snd_pcm_hw_open) Invalid value for card .. what it signifies ?
  • [15:13:41] <shankar> aplay: main:546: audio open error: No such device
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  • [16:04:16] <koen> re
  • [16:04:38] <mru> hi koen
  • [16:06:14] * dirk2 (n=dirk@92.116.40.15) has joined #beagle
  • [16:06:40] <Crofton|work> I'm going to be out of town for the next few weeks
  • [16:06:57] <Crofton|work> sadly 3 TZ's west
  • [16:07:25] <Crofton|work> mru, in the inner product code you posted
  • [16:07:35] <Crofton|work> you only put two floats in a Q register
  • [16:07:46] <Crofton|work> can't you put four floats in a Q register?
  • [16:08:00] <mru> did I?
  • [16:08:03] <mru> I can't remember
  • [16:08:06] <mru> where's the code?
  • [16:08:29] <Crofton|work> http://groups.google.com/group/beagleboard/browse_thread/thread/2ca91dbe2d2ac335?fwc=1
  • [16:08:34] <Xenion> Gute Nacht alle miteinander, pennt jut ( ja ich wei?? es ist zu fr??h :-P ) / Good Night all together - sleep well :-)
  • [16:08:50] <koen> Crofton|work: it seems that roger will drop by tue/wed/thurs next week
  • [16:08:57] <Crofton|work> ok
  • [16:09:10] <Crofton|work> ask him to make a patch for the 128M case
  • [16:09:20] * Xenion (n=robert@p579FC562.dip.t-dialin.net) Quit ("Verlassend")
  • [16:09:33] <Crofton|work> it would be very handy having it working on the sffsdr board the following week
  • [16:09:46] <Crofton|work> I can be online in the evenings
  • [16:10:08] <mru> Crofton|work: looks like 4 floats per q reg to me
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  • [16:10:17] <Crofton|work> doh
  • [16:10:21] <Crofton|work> unrolled 8 times!
  • [16:10:25] <Crofton|work> I am an idiot
  • [16:10:29] <Crofton|work> thanks
  • [16:11:34] <mru> if you can unroll it more, it should get faster
  • [16:11:49] <Crofton|work> would it help to interleace the load and mul?
  • [16:12:08] <Crofton|work> let me get this working, then I can try that
  • [16:12:18] <Crofton|work> this is next weeks hotel task
  • [16:12:26] <mru> yes, interleaving them should improve it
  • [16:12:43] <mru> it can then dual-issue the first vmla with the second vld1
  • [16:13:15] <Crofton|work> crap
  • [16:13:25] <Crofton|work> my neon code is on this machine
  • [16:13:44] <Crofton|work> and I haven't fixed inbound ssh
  • [16:14:05] <mru> the killer here is that vmla has a 9-cycle latency
  • [16:14:17] <Crofton|work> what does that mean?
  • [16:14:37] <mru> it means the result is ready 9 cycles after the instruction is issued
  • [16:15:36] <Crofton|work> ah
  • [16:15:43] <mru> so you need to be doing something else in the meantime
  • [16:15:49] <Crofton|work> but you can do loads during thart
  • [16:16:43] <mru> you can do anything that doesn't need the result
  • [16:17:26] <Crofton|work> how long does the load take>
  • [16:18:20] <mru> loading 2 d-registers (1 q) takes one cycle if the address is aligned
  • [16:18:22] <Crofton|work> the subs sets the flag used by by the bgt?
  • [16:18:34] <mru> 4 registers need 2 issue cycles
  • [16:18:58] <mru> sometimes you're better off splitting the loads
  • [16:19:18] <mru> yes
  • [16:19:22] <Crofton|work> the muls can run ||?
  • [16:19:36] <mru> they're pipelined, yes
  • [16:19:38] <Crofton|work> you could do the subs after a mul then
  • [16:20:08] <mru> in this particular loop, the subs and bgt don't count against latencies
  • [16:20:15] <Crofton|work> ok
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  • [16:20:44] <Crofton|work> so vld1 is loading two q's with 8 f32's?
  • [16:21:01] <mru> the 4-reg vld and vmla with q regs all use two neon issue cycles
  • [16:21:15] <mru> so the neon instruction queue is always full
  • [16:21:42] <mru> yes
  • [16:21:54] * mru likes pipelined conversations
  • [16:22:04] <Crofton|work> great, now I can try and read the ref man in the plane
  • [16:22:21] <Crofton|work> I really need a good way to read pdf, besides the laptop
  • [16:22:28] <mru> do you have DDI 0344B?
  • [16:22:48] <mru> have you seen those sony e-book readers?
  • [16:23:37] <mru> you also want DDI 0406B
  • [16:25:12] <Crofton|work> got the 406, not the 344
  • [16:25:22] <Crofton|work> what is in 344?
  • [16:25:29] <mru> cortex-a8 trm
  • [16:25:32] <mru> cycle timings
  • [16:25:36] <mru> it's on the web
  • [16:26:14] <Crofton|work> great found it
  • [16:26:39] <Crofton|work> maybe not
  • [16:27:11] <Crofton|work> bah, need to make sure I have everything to go
  • [16:27:52] <mru> http://infocenter.arm.com/help/topic/com.arm.doc.ddi0344b/DDI0344.pdf
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  • [18:27:37] <Ikarus> gaaaah, why does PCB has to have the most obscure user interface ever
  • [18:27:41] <Ikarus> even gschem is saner
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  • [18:57:11] <ds2> eagle ;)
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  • [19:23:55] <emeb> Ikarus: PCB does take a little getting used to.
  • [19:24:49] <emeb> I've been using it for ~6 months though and it's not so bad now. Wore me down I guess.
  • [19:25:48] <mru> I don't know that particular app, but sometimes there are interfaces that seem totally outlandish at first, but turn out to be really fast once you get used to them
  • [19:30:47] <TangerineTriode> emacs :)
  • [19:31:02] <TangerineTriode> or, for that matter, vi
  • [19:31:07] * mru uses both
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  • [19:31:59] <TangerineTriode> me too
  • [19:32:23] <TangerineTriode> neither interface is intuitive, or even easy
  • [19:32:43] <TangerineTriode> but I love the both after 15 years on emacs an 20 on vi
  • [19:33:05] <Ikarus> emeb: I am going to see if kicad works better
  • [19:33:23] <mru> it takes a few years to get comfortable with
  • [19:33:32] <TangerineTriode> yeah
  • [19:33:39] <Ikarus> PCB is annoying me by not even following conventions like ctrl+z for undo
  • [19:33:41] <mru> but now I wouldn't trade either of them for anything
  • [19:33:56] <mru> that's not a convention, that's microsoft
  • [19:34:14] <mru> C-/ is undo if you're in emacs
  • [19:34:32] <mru> u in vi
  • [19:34:46] <emeb> Ikarus: yeah - ^X, ^C, ^V support would be nice.
  • [19:35:02] <TangerineTriode> ^a ^e ^w
  • [19:35:18] <mru> but ^V is, what is it, paste, where is page down?
  • [19:35:27] <Ikarus> mru: uhuh, but it doesn't follow ANY other vi convention...
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  • [19:36:05] <mru> Ikarus: that's emacs
  • [19:36:49] <mru> hi RogerMonk
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  • [20:38:50] <garren_> has anyone tried using mono on the beagleboard?
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  • [20:39:56] <mru> I heard someone had success with stereo
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  • [20:47:26] <koen> garren_: 1.2.x works, haven't tried crosscompiling 2.0 yet
  • [20:47:43] <koen> 'opkg install mono' or something like this
  • [20:57:35] <mru> koen: define "works"
  • [20:57:46] <mru> I guess you mean "does what it says on the tin"
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  • [21:01:15] <koen> "helloworld prints hello, everything else sells your soul to novell"
  • [21:01:23] <Pavlov> heh
  • [21:01:30] <koen> it might even print "world" as well
  • [21:02:46] <Pavlov> anyone here anything new on 256mb beagleboards?
  • [21:03:03] <mru> mine's working fine ;-)
  • [21:03:14] <mru> I really hope they decide to make them
  • [21:03:18] <mru> might get a few more
  • [21:03:29] <Pavlov> i'd order a bunch
  • [21:04:03] <jkridner|work> wonder if anyone is showing a BeagleBoard at the Maker Faire in Austin this weekend.
  • [21:04:04] * koen is quite happy with his 256mb beagle
  • [21:04:20] <jkridner|work> I simply had too much time on the road.
  • [21:04:28] <jkridner|work> 256MB the sweet spot?
  • [21:04:33] <Pavlov> more is better ;)
  • [21:04:34] <jkridner|work> FF3 much faster?
  • [21:04:45] <koen> jkridner|work: yes, since it doens't hit swap :)
  • [21:04:50] <Pavlov> really its just about development
  • [21:04:55] <Pavlov> being able to actually run gdb
  • [21:05:04] <Pavlov> or link
  • [21:05:07] <koen> jkridner|work: 512MB would be better of course
  • [21:05:54] <Pavlov> yeah
  • [21:06:04] <Pavlov> 2gb ones would be great too ;)
  • [21:06:06] <mru> more is always better
  • [21:06:16] <Pavlov> but 256 is way better than 128
  • [21:06:23] <mru> Pavlov: be careful with b vs B
  • [21:06:33] <mru> memory chips are usually labeled in bits
  • [21:06:50] <jkridner|work> yeah, 256MB = 2Gb.
  • [21:07:09] <jkridner|work> hardware folks like to count things in bits.
  • [21:07:15] * Pavlov writes software ;p
  • [21:07:31] <mru> software runs on hardware
  • [21:07:44] <jkridner|work> part number is xxxx1G2G for the 128MB-RAM/256MB-flash device
  • [21:07:48] <Pavlov> heh
  • [21:08:00] <Pavlov> i've never ever seen anyone say "hey i'm ordering 2gigabits of memory!"
  • [21:08:19] <mru> they're not buying chips, but assembled modules
  • [21:08:54] <Pavlov> i've never seen anyone say "my computer has 2gigabits of ram" either
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  • [21:09:13] <koen> because usually you can't see sounds
  • [21:09:14] * mru got some 8-terabit hard drives recently
  • [21:09:25] <Pavlov> heh
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