**** BEGIN LOGGING AT Thu May 22 02:59:58 2014
May 22 03:24:25 <warsh> I'm trying to connect to Adafruit's 16 channel servo driver through i2c on my BBB; the issue is that i2cdetect is not detecting the board. Could someone assist me?
May 22 03:28:45 <treeherder> warsh pullups on the line?
May 22 03:29:07 <warsh> treeherder: none what so ever
May 22 03:30:07 <warsh> treeherder: something like 4.7kOhm should be fine, right?
May 22 03:30:27 <treeherder> i think 10k is usually what you use
May 22 03:30:31 <treeherder> or 100
May 22 03:30:37 <treeherder> i'd do a quick google
May 22 03:30:45 <warsh> doing right now
May 22 03:32:30 <warsh> this is pretty descriptive, http://www.edn.com/design/analog/4371297/Design-calculations-for-robust-I2C-communications
May 22 03:35:39 <nyt> warsh, which i2c device? did you enable the overlay?
May 22 03:35:42 <nyt> how are you accessing it?
May 22 03:36:28 <nyt> that should be a straight forward wire up
May 22 03:36:30 <nyt> power, ground, sca, scl
May 22 03:36:49 <warsh> nyt: I'm connecting to P9_19 & P9_20
May 22 03:37:10 <nyt> sda rather, pardon my typo
May 22 03:37:22 <warsh> and to check if BBB is reading it, I'm using i2cdetect -y -r 0 *or 1 on the terminal
May 22 03:38:06 <nyt> should be 1
May 22 03:38:15 <nyt> by default theres something on 54-57
May 22 03:38:56 <nyt> how do you have it wired
May 22 03:41:31 <warsh> atm, I have the servo board connected directly to the BBB; 3V3 and gnd coming from P9_3 & P9_1 respectively
May 22 03:42:36 <nyt> and what pins are those connected to on the adafruit chip
May 22 03:42:48 <nyt> http://www.adafruit.com/products/815 right/
May 22 03:43:54 <warsh> yep that's it
May 22 03:44:16 <nyt> you should see something on 0x40
May 22 03:44:17 <nyt> with i2cdetect
May 22 03:44:39 <nyt> what do you have 9_19 and 9_20 run to?
May 22 03:45:21 <nyt> 20 should go to sda and 19 to scl
May 22 03:45:37 <warsh> that it does
May 22 03:46:08 <warsh> root@beaglebone:~/servo# i2cdetect -y -r 0
May 22 03:46:09 <warsh>      0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
May 22 03:46:09 <warsh> 00:          -- -- -- -- -- -- -- -- -- -- -- -- --
May 22 03:46:10 <warsh> 10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
May 22 03:46:12 <warsh> 20: -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- --
May 22 03:46:14 <warsh> 30: -- -- -- -- UU -- -- -- -- -- -- -- -- -- -- --
May 22 03:46:16 <warsh> 40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
May 22 03:46:18 <warsh> 50: UU -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
May 22 03:46:20 <warsh> 60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
May 22 03:46:22 <warsh> 70: UU -- -- -- -- -- -- --
May 22 03:46:24 <warsh> that's what I see
May 22 03:46:28 <warsh> ...probably should've used pastebin
May 22 03:46:30 <nyt> told you
May 22 03:46:30 <nyt> 1 not 0
May 22 03:46:39 <nyt> 0 is not exposed
May 22 03:46:46 <nyt> 1 is i2c2, 9_19 and 9_20
May 22 03:46:57 <warsh> this is what I'm seeing, http://pastebin.com/Ar4cFr5L
May 22 03:47:08 <nyt> k, not detected
May 22 03:47:10 <nyt> would be on 0x40
May 22 03:47:15 <warsh> right
May 22 03:47:30 <nyt> that chip may need 5v
May 22 03:47:31 <nyt> not sure
May 22 03:47:41 <warsh> it needs 3.3, I checked
May 22 03:47:55 <warsh> the power led is a solid bright green
May 22 03:48:32 <nyt> PCA9685 operates with a supply voltage range of 2.3 V to 5.5 V
May 22 03:49:22 <warsh> still should work, when I connected to my raspberry pi's 3.3 rail; it functioned
May 22 03:49:41 <raspberrypifan> PI
May 22 03:50:11 <warsh> rpi
May 22 03:50:18 <raspberrypifan> rpi@
May 22 03:51:15 <nyt> i'd say count pins again
May 22 03:51:18 <nyt> make sure youre actually in 19 and 20
May 22 03:51:26 <nyt> and that sda/scl arent crossed or something
May 22 03:51:37 <nyt> and that you're actually in p9
May 22 03:52:05 <nyt> http://beagleboard.org/Support/bone101#headers-i2c
May 22 03:52:31 <nyt> p9_1 being near the dc power jack
May 22 03:56:28 <warsh> it's the right pins, I'm even using pullup resistors at 2.2K
May 22 03:56:39 <warsh> where Vdd == 3.3V
May 22 03:57:14 <nyt> should be able to just wire direct even, got me at this point
May 22 03:57:20 <nyt> something not right
May 22 03:59:30 <nyt> you try without the pullups? just sda to sda, scl to scl direct?
May 22 04:00:44 <warsh> that's how I did it at first
May 22 04:01:53 <warsh> what are the UUs by chance? just not allocated
May 22 04:47:57 <nyt> UU show addresses in use
May 22 05:01:38 <thurgood> interesting, my wifi adapter only detected 5GHz N networks if I restarted with it plugged in
May 22 05:04:37 <thurgood> so, I can say that the asus usb-n53 /mostly/ works on the debian image from 11/4/14
May 22 06:02:35 <miandonmenmian> is this option available for angstrom kernel build options?
May 22 06:02:36 <miandonmenmian> CONFIG_FB_DEFERRED_IO=y
May 22 09:14:01 <SakuraNick> Hi i want to ask something about beagleBone
May 22 09:15:34 <woglinde> just ask, dont ask to ask
May 22 09:48:53 <Andrew_ww> Is there anyone downloaded StarterWare 02.00.01 for AM335X from ti.com already?
May 22 09:51:53 <LetoThe2nd> Andrew_ww: even if, what would you gain from the answer? (be it yes or no)
May 22 09:52:22 <LetoThe2nd> Andrew_ww: so think a bit, and then ask what you *actually* want to know - but be warned: starterware sees little to no support/love here.
May 22 09:52:55 <Andrew_ww> I registered on ti.com, and they write, its 1-2 business days until my register get approved.. it seems, it takes a "bit" more.
May 22 09:53:13 <Andrew_ww> The only question - if anyone have experience about - how much time it takes in real?
May 22 10:02:37 <CharlieBra7o> Andrew_ww: r u takling about a regular "my.TI" account?
May 22 10:03:21 <Andrew_ww> yepp
May 22 10:04:01 <CharlieBra7o> I registered 3 weeks ago and IIRC it was instantly "approved"
May 22 10:05:50 <Andrew_ww> Are you living in U.S. zone?
May 22 10:06:08 <CharlieBra7o> nope, germany
May 22 10:06:46 <CharlieBra7o> I got an email a few secs later with the confirmation link to comlete the registration
May 22 10:10:51 <Andrew_ww> Well, i will wait until next week and will ask ti.com info, what is wrong.
May 22 10:15:13 <CharlieBra7o> did u check ur email spam?
May 22 10:18:23 <Andrew_ww> I did. Anyway, it will not be the first time yahoo swallowes some letter sent to me, and 2-3 days later i get it as an arrived mail days ago.
May 22 10:22:36 <CharlieBra7o> shweet.
May 22 10:57:37 <dogrocket> anyone using the audio cape?
May 22 11:38:07 <rob_w> in /sys/devices/ocp.2/ . how do the .XY numbering comes in to play ?
May 22 12:30:06 <rob_w> funny .. i move ttyO1 init into am335x-comon.dts and i am able to set console=ttyO1,115200 , if set console=tty2 my devicetree numbering is screwed up as it loads a cape overlay twice , one numbered .12 and one numbered .13 ??
May 22 12:31:31 <KotH> blame panto
May 22 12:32:07 <panto> blame the serial driver
May 22 12:32:13 <rob_w> some something is in my overlays which setting console triggers that
May 22 12:32:21 <panto> ttyOn where n is load order
May 22 12:32:32 <rob_w> no i think my overlay files are somehow not right
May 22 12:32:39 * panto shrugs 
May 22 12:33:08 <rob_w> how do the numberings of the /sys/devices/ocp.2/ come to live ?
May 22 12:33:25 <panto> it's the auto-number of the platform code
May 22 12:33:32 <panto> *numbering
May 22 12:34:08 <rob_w> how can mulitple ones occur ??
May 22 12:34:31 <rob_w> i mean how could he load 2 of my cape overlays ?
May 22 12:36:16 <rob_w> seems likea  racing condition where when i do use ttyO1 as console it doesnt occur
May 22 13:19:21 <Rotti> hi
May 22 13:19:33 <av500> lo
May 22 13:20:03 <keesj> lo
May 22 13:21:30 <puckipedia> hi
May 22 14:22:03 <rooted> hello , ive just installed andoroid on my beaglebone , but its seems i cant active the wireless in the device , any hint ?
May 22 14:22:57 <woglinde> missing kernel driver?
May 22 14:23:38 <rooted> well its works fine with angstorm and ubuntu , but android it doesnt
May 22 14:23:57 <rooted> and its seems i cant find the playstore here
May 22 14:28:15 <thurgood> drivers and/or firmware more than likely
May 22 14:28:30 <rob_w> is the droid working with the internal hdmi ?
May 22 14:29:41 <rooted> no am using micro-hdmi to VGA
May 22 14:33:28 <rooted> ive changed 3 wireless adapter's its seems with the same problem
May 22 14:33:58 <av500> stock android does not come with wifi drivers
May 22 14:34:28 <av500> did you check if drivers are there?
May 22 14:34:30 <av500> loaded?
May 22 14:34:32 <av500> etc..
May 22 14:35:22 <rooted> av500 how do i know  ?
May 22 14:35:36 <av500> adb shell
May 22 14:35:40 <av500> what android?
May 22 14:35:46 <av500> rowboat?
May 22 14:35:47 <rooted> jelly bean
May 22 14:35:55 <av500> well yes
May 22 14:36:00 <av500> but somebody adpated it to BBB
May 22 14:36:17 <rooted> what is the solution for that ?
May 22 14:36:25 <av500> for what?
May 22 14:36:35 <rooted> the wifi dongle :p
May 22 14:37:38 <av500> the solution?
May 22 14:37:44 <av500> work on it
May 22 14:37:47 <av500> study android
May 22 14:37:49 <av500> google a lot
May 22 14:38:01 <av500> few people here run android on BBB
May 22 14:38:06 <av500> but then, android is linux
May 22 14:38:12 <av500> so linux knowledge applies
May 22 14:38:29 <rooted> so ssh it then install drives ?
May 22 14:38:34 <av500> if angstrom has the driver and android has not you need to add it
May 22 14:38:41 <av500> normal android has no ssh
May 22 14:39:00 <av500> http://shop.oreilly.com/product/0636920021094.do
May 22 14:39:07 <av500> [16:41] <av500> study android
May 22 15:14:51 <das> av500: who needs ssh when you have adb ?
May 22 15:20:45 <KotH> apple desktop bus?
May 22 15:46:15 <jjmiv> hello
May 22 15:46:59 <jjmiv> anyone here have issues connecting their beaglebone black via usb?
May 22 15:48:01 <myself> jjmiv: can you be a bit more vague about the problem you're experiencing?
May 22 15:54:01 <jjmiv> thanks.  i restored my computer recently and upgraded to Win 7 x64 ultimate
May 22 15:54:31 <jjmiv> wanted to get my beaglebone black set up via USB (had it working on machine before reformat of pc)
May 22 15:54:59 <jjmiv> i installed x64 drivers, rebooted, re-seated USB connection, installed suggested vb package.  no dice
May 22 15:55:02 <tbr> jjmiv: just install the drivers as instructed on the webpage
May 22 15:55:49 <tbr> jjmiv: check your device manager if you see the serial port and the network device. Also make sure you reboot your PC after installing the drivers, just in case.
May 22 15:56:20 <jjmiv> tbr: tried that.  i followed the getting started page (like I did before) and it won't recognize the BBB
May 22 15:56:26 <jjmiv> i did try different usb ports
May 22 15:56:44 <tbr> define "won't recognize"
May 22 15:59:57 <jjmiv> ok - i connect the beaglebone black via USB.  the device powers on but there is no "remove USB devices" icon in the system tray or listing in Computer
May 22 16:00:18 <mistawright> what is it detected as in the device manager
May 22 16:00:23 <mistawright> thats a driver issue
May 22 16:00:45 <jjmiv> i looked at the device manager and did not see anything listed for it
May 22 16:00:50 <mistawright> download the drivers from the beagleboard website and call it a day
May 22 16:00:50 <jjmiv> mistawright: that's what i thought
May 22 16:01:05 <mistawright> you probably have a device that has an exclamation mark beside it
May 22 16:02:19 <jjmiv> nope - nothing listed
May 22 16:10:04 <mistawright> try a different port
May 22 16:10:21 <mistawright> try one in the back of the computer if a desktop you will have more power from those ports
May 22 16:10:31 <jjmiv> good point
May 22 16:13:06 <jjmiv> no joy
May 22 16:17:09 <mistawright> I need some help. I am trying to build a kernel for my beaglebone black
May 22 16:17:39 <mistawright>  i have gotten it configured and have already made a uImage but when going to the next step i get an error
May 22 16:17:48 <mistawright> make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- uImage-dtb.am335x-boneblack LOADADDR=0x80008000 -j4
May 22 16:17:49 <mistawright> make: *** No rule to make target `uImage-dtb.am335x-boneblack'.  Stop.
May 22 16:22:59 <ihavnoth> mistawright: Maybe your target rule is uImage.
May 22 16:24:29 <mistawright> ihavnoth, I was following this guide with the exception of including some drivers for video in the kernel i needed
May 22 16:27:06 <mistawright> http://wiki.beyondlogic.org/index.php/BeagleBoneBlack_Building_Kernel
May 22 16:27:16 <ihavnoth> find . -type f -name "Makefile" -exec grep -H "^uImage-dtb.am335x-boneblack:" {} \;
May 22 16:27:50 <mistawright> nothing found running that command
May 22 16:28:20 <mistawright> so you are probably right. i am using the 2014 uboot that the guide recommended not sure if that would have caused the change
May 22 16:28:28 <mistawright> it recommends the latest
May 22 16:28:53 <ihavnoth> If you dont have rule you can use it
May 22 16:28:59 <ihavnoth> can't
May 22 16:29:24 <mistawright> should the rule be uImage.dtb?
May 22 16:29:33 <mistawright> not sure what rule to use then
May 22 16:30:18 <ihavnoth> I'm seeing your guide and testing it
May 22 16:30:55 <mistawright> ihavnoth, thanks for the help.
May 22 16:31:20 <ihavnoth> np
May 22 16:31:28 <ihavnoth> I was very bored
May 22 16:34:11 <ihavnoth> It takes too long cloning into '.' ...(Receiving objects)
May 22 16:36:05 <mistawright> yeah it does
May 22 16:36:38 <mistawright> i tried it over wifi once on my laptop and said f that
May 22 16:47:13 <ihavnoth> Is BB based on AM335x?
May 22 16:47:37 <mistawright> yeah
May 22 16:49:30 <ihavnoth> patch.sh script is very smart^.^ Now is patching a vanilla kernel.
May 22 16:50:20 <mistawright> ls
May 22 16:51:28 <mistawright> wget http://arago-project.org/git/projects/?p=am33x-cm3.git\;a=blob_plain\;f=bin/am335x-pm-firmware.bin\;hb=HEAD -O kernel/firmware/am335x-pm-firmware.bin
May 22 16:51:45 <mistawright> from this line i am wondering if I should be using that as the target when doing the last part
May 22 17:03:43 <ihavnoth> mistawright: complete
May 22 17:05:09 <mistawright> I compiled it fine the otherday but screwed up on getting the kernel onto the beaglebone.
May 22 17:05:55 <ihavnoth> ...
May 22 17:06:06 <mistawright> wouldnt boot after that. in fact been having a hell of a time getting it to boot into my sd card now
May 22 17:06:26 <ihavnoth> ok
May 22 17:06:53 <ihavnoth> I can't test it because I dont have a hardware
May 22 17:07:07 <mistawright> the target is the only thing eluding my right now
May 22 17:07:11 <mistawright> i didnt do anything different
May 22 17:07:20 <ds2> p[
May 22 17:09:56 <ihavnoth> mistawright: do you have other error messages?
May 22 17:10:48 <mistawright> that was the only one i encountered. I have the zImage Image and uImage ready
May 22 17:11:15 <mistawright> so i am not sure what that step does and if it is necessary or not
May 22 17:20:00 <ihavnoth> uImage-dtb.am335x-boneblack is maybe a necessary file
May 22 17:21:00 <mistawright> that was done through wget in the folder preceding the kernel source
May 22 18:03:44 <SeveQ> Hey folks, we've got a weird problem here, BBB stops working out of nowhere. Symptoms are pretty much the same as in this thread but with the unfortunate difference that our BBB doesn't come back even when we disconnect it from any power supply (https://groups.google.com/forum/#!topic/beagleboard/3WDU72K_9Wg)...
May 22 18:04:42 <SeveQ> Power LED just flashes once. That's all about response from the BBB.
May 22 18:05:24 <SeveQ> Wait, wrong link, sorry... stay tuned, looking for the right one...
May 22 18:07:08 <SeveQ> Here, that's the right one. Sorry for the confusion... This is what we encounter aside from the BBB not coming back to life: https://groups.google.com/forum/#!topic/beagleboard/p0CwsGzNYNw
May 22 18:08:30 <SeveQ> Even waiting for days after unplugging the BBB doesn't solve the problem.
May 22 18:10:45 <SeveQ> Huh... Everyone reading my linked thread? Or is nobody here?
May 22 18:11:16 <SeveQ> Ah, be patient... alright. I am. :-)
May 22 18:13:39 <SeveQ> Anyway, I'm gonna drive home in a couple of minutes and get back to you as soon as I'll be there. Shouldn't take more than an hour or two... maybe someone will already have an answer by then. I'd be grateful.
May 22 19:05:13 <infinitum> what's the best europian distributor to buy the beagleboard rev c? I can't wait that long! >)
May 22 19:07:03 <_av500_> the one that magically has stock while all others dont?
May 22 19:08:13 <infinitum> they probably ship to some shops sooner than some other ones..
May 22 19:08:56 <ragnar76_> sounds like farnell
May 22 19:10:45 <ragnar76> oh. out of stock
May 22 19:11:02 <dna5589> mistawright: did you find a solution to your make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- uImage-dtb.am335x-boneblack LOADADDR=0x80008000 -j4 problem?
May 22 19:13:25 <veremit> ragnar76 .. order & wait :P~
May 22 19:14:10 <XorA> farnell manufacture them, so I guess they prioritise themselves :-)
May 22 19:14:22 <ragnar76> veremit: i have 4 :)
May 22 19:14:41 <veremit> lol ook
May 22 19:14:46 <veremit> element14 I don't think have completed their first production run yet
May 22 19:21:01 <mistawright> dna5589, no i did not. i messed up my emmc had to reflash my bbb and now im in the process of getting a distro on an sd card. Did you come across this issue and recitify it?
May 22 19:28:16 <dna5589> mistawright: i followed that same procedure to build a BBB recently. I think you need to "cd kernel" one more time
May 22 19:28:56 <dna5589> mistawright: the path should be ...2014.04/kernel/kernel
May 22 19:28:58 <NOOB_123> hello, what is the best way to restore IP tables in BBB at startup?  /etc/network/interfaces addition?
May 22 19:29:44 <veremit> yuk
May 22 19:29:49 <veremit> iptables has its own mechanism I thought
May 22 19:30:06 <mistawright> dna5589, thats the path i was in when i attempted
May 22 19:31:08 <mistawright> dna5589, this was the output http://pastebin.com/krEfeFiD
May 22 19:31:35 <NOOB_123> thanks veremit, ill look for a config
May 22 19:32:39 <veremit> mistawright .. think you got too many bits on that .. or you need "uImage dtbs" .. never seen the form you used ..
May 22 19:33:07 <mistawright> veremit, this is the guide i was following: http://wiki.beyondlogic.org/index.php/BeagleBoneBlack_Building_Kernel
May 22 19:33:29 <dna5589> mistawright: that command works for me in that directory
May 22 19:33:34 <veremit> oh boy ..
May 22 19:33:58 <veremit> jkridner .. when you gonnna consolidate BBB documentation??
May 22 19:34:01 <dna5589> mistawright: could it be a sudo thing?
May 22 19:34:06 <mistawright> veremit, is there a better guide to building and booting a kernel on the beaglebone black?
May 22 19:34:10 <mistawright> dna5589, running as root
May 22 19:34:43 <veremit> I, personally, use eewiki.net/linuxonarm/Beaglebone+Black
May 22 19:34:57 <dna5589> mistawright: I'm sorry, stumped right now.  I'll keep trying to replicate your problem
May 22 19:35:22 <veremit> so this is the third "make" in that list, yes, mistawright?
May 22 19:35:41 <mistawright> veremit, exactly
May 22 19:36:20 <veremit> hrm ok . I remember similar steps on beagle's own website .. but I could never make it work
May 22 19:36:25 <veremit> then I hit upon eewiki :)
May 22 19:36:59 <mistawright> veremit, can i replace robert cnelsons github with the beaglebone github?
May 22 19:37:13 <veremit> I Would doubt it
May 22 19:37:23 <veremit> I thought rcn had a 3.8 kernel still somewhere ..
May 22 19:37:41 <veremit> I know his other is mainline .. or 3.14
May 22 19:37:53 <veremit> but he uses linaro tools
May 22 19:39:19 <mistawright> I have used this guide sucessfully before: http://dev.ardupilot.com/wiki/building-for-beaglebone-black-on-linux/
May 22 19:39:39 <mistawright> may try again but with drivers i needed added and minus the rt as I dont currently need it.
May 22 19:40:21 <veremit> looks much the same
May 22 19:40:24 <veremit> very odd
May 22 19:42:38 <thurgood> I got rev c in two days fromm special comp... but they're charging $69
May 22 19:42:45 <SeveQ> Hey guys, I suppose nobody has seen my question?
May 22 19:43:03 <veremit> question?!
May 22 19:43:51 <thurgood> the one about browning out the power on the bbb?
May 22 19:44:00 <SeveQ> Yepp, that one.
May 22 19:44:31 <thurgood> why are you trying to do that?
May 22 19:45:09 <SeveQ> What? Browning out? I don't. We power the BBB from a USB port, so voltage should be pretty stable. It just happends and we don't know why.
May 22 19:45:40 <thurgood> no, usb barely powers the board at 600MHz max
May 22 19:45:50 <SeveQ> And after it happens the PMIC doesn't come back even after unplugging the BBB for several hours to days...
May 22 19:46:09 <veremit> no pmic doesn't like bein 'messed about' lol
May 22 19:46:15 <SeveQ> Can brownout be lethal to the PMIC?
May 22 19:46:38 <thurgood> probably depends on the state it's in when the power comes back
May 22 19:47:26 <SeveQ> My goodness... we've already lost three BBBs due to that. Is there any way that we could reanimate them?
May 22 19:48:18 <_SY_> can anyone point me to a good guide on setting up Ubuntu 14.04 with eclipse to debug C applications on BBB remotely?  Thank you.
May 22 19:48:31 <thurgood> either run from a regulated barrel connector, or don't put much of a load on it
May 22 19:49:22 <myself> lethal, as in, smokes the pmic silicon? Or as in, corrupts the emmc in a way that's recoverable?
May 22 19:49:39 <mistawright> _SY_, youtube derek malloye. that guy has some great guides on that
May 22 19:49:41 <thurgood> it will go up to 1GHz if you use a barrel connector
May 22 19:50:15 <_SY_> thank you.
May 22 19:50:16 <SeveQ> Well, lethal in an unrecoverable way. The question is, can the BBBs be recovered without replacing parts?
May 22 19:50:47 <thurgood> if the tps regulator is the part that's acting screwy it can overvolt other parts
May 22 19:51:01 <veremit> I've had to get a processor replaced once
May 22 19:51:01 <mistawright> thurgood, will it still the same if it is powered through the sys_vdd pin? I was considering powering mine through a 5volt pin from an hbridge. actually around 4.95 volts
May 22 19:51:28 <SeveQ> There wasn't any smoke. It just went off.
May 22 19:51:37 <veremit> and it never comes back ;)
May 22 19:51:51 <SeveQ> Now, when we power it on again power LED just flashes once and that's it.
May 22 19:52:04 <veremit> yup toasted.
May 22 19:52:10 <thurgood> have you tried the ftdi cable, to see if it's stuck not booting because of the emmc?
May 22 19:52:26 <veremit> if you got one measly flash from power LED ... thats toast.
May 22 19:52:34 <SeveQ> Nope, not yet. Will there be any output anyway if there's no power?
May 22 19:52:36 <veremit> mine did that
May 22 19:52:47 <SeveQ> Darn it...
May 22 19:53:09 <SeveQ> The main problem is that we've got a deadline in about two weeks and really need those BBBs...
May 22 19:53:23 <veremit> if you're lucky you might unbrick it by holding one of the buttons whilst plugging in DC power .. but didn't work on the one Ihad
May 22 19:53:41 <SeveQ> Alright, I'll try that tomorrow, hoping that at least one will come back.
May 22 19:53:44 <thurgood> rma it if you were powering by a USB port, that should be within specs
May 22 19:54:06 <thurgood> won't help in the short term though
May 22 19:54:37 <SeveQ> Buaaahhh... that's horrible... *cryingbigtears*
May 22 19:54:46 <veremit> don't think anything will help you short-term ..
May 22 19:54:47 <veremit> :D
May 22 19:54:53 <thurgood> like I mentioned to someone else previously special comp /may/ have some in stock if you are willing to pay extra
May 22 19:54:59 <veremit> unless you find a vendor with some in stock
May 22 19:55:13 <SeveQ> special comp?
May 22 19:55:21 <SeveQ> Price doesn't matter I guess...
May 22 19:55:31 <SeveQ> (well, to some extent that is...)
May 22 19:55:37 <thurgood> http://specialcomp.com/beaglebone/
May 22 19:55:49 <thurgood> they are in stock there
May 22 19:56:27 <johnwalkr> do you have anything else connected?
May 22 19:56:30 <SeveQ> Alright, thanks. I'll discuss that with my team. Good lord... what have we done...
May 22 19:56:32 <thurgood> $14 over MSRP...but available
May 22 19:56:55 <johnwalkr> normally this happens by overloading a gpio pin or something
May 22 19:57:33 <SeveQ> Yeah, we've had a TMC stepper driver connected to, I think, an SPI. But I don't see how the gpio can be overloaded by that.
May 22 19:57:43 <veremit> or having power on a pin before the beagle is powered .. its all hella sensitive
May 22 19:57:52 <veremit> beagle pins are unprotected
May 22 19:58:23 <johnwalkr> they are really fragile compared to arduino or something in terms of IO
May 22 19:58:29 <johnwalkr> i would triple check there first
May 22 20:00:27 <SeveQ> Well, the last brownout we had was in the very same moment that we connected a stepper driver to the TMC (which is a stepper controller, not a driver). The TMC was connected to the BBB via SPI (IIRC). The moment we plugged in the stepper driver the BBB was gone...
May 22 20:01:19 <SeveQ> There's however no direct connection between the stepper driver and the BBB. There's the TMC in between and on the power supply side there's the PC which powers the BBB by USB...
May 22 20:01:35 <veremit> ewww
May 22 20:01:54 <SeveQ> ewww?
May 22 20:02:30 <veremit> why does Everyone insist on powering their BB using USB .. and expect everything to work, and dangle wifi off it, and make coffe with it and .... *mutters*
May 22 20:03:15 <SeveQ> Maybe because the BBB has a micro-USB power plug...
May 22 20:04:03 <johnwalkr> and comes with extra features when you connect by micro usb. anyway i could be wrong but i don’t think lack of power would fry it
May 22 20:04:17 <johnwalkr> i’m more inclined to suspect the SPI side
May 22 20:08:21 <SeveQ> Just to mention it: the other two brownouts were caused by the main power unit switching off due to overload caused by two big electrolyte capacitors which were requesting a lot of current at the very beginning of their charging process. The power supply of the whole system couldn't handle it (about 11 ampere all in all for a millisecond or something). We've solved that issue by putting some dropping resistors before the capacitors.
May 22 20:08:50 <N2TOH> wait I thought the BBB was a mini-USB, and the RPI used a micro-USB connector
May 22 20:09:00 <veremit> N2TOH correct
May 22 20:09:24 <N2TOH> and the BBB will throttle it's performance based on what power connector is used
May 22 20:09:31 <SeveQ> Yeah, we've had the other two BBBs powered directly by a stable step-down-converter.
May 22 20:09:33 <thurgood> that's correct although one of my bbb's shipped with a mislabled micro cable
May 22 20:09:58 <SeveQ> Mini-USB, yeah... sorry.
May 22 20:10:11 <veremit> SeveQ .. and does that work fine?
May 22 20:10:26 <mistawright> veremit, so it wouldnt work when trying with the 3.13 kernel. but it worked for 3.12.9 now i just need to get the kernel on the beaglebone and booting
May 22 20:10:44 <veremit> good good mistawright
May 22 20:12:51 <SeveQ> veremit You mean the dropping resistors? Yes, that works pretty well. I'm not quite sure why we decided to use the USB port of the PC. I think it's because we hoped to cover the BBB from brownouts caused by another PSU overload. The PC was supposed to handle it and stabilize the power.... which it obviously didn't....
May 22 20:16:01 <veremit> thats not how it'll work :)
May 22 20:16:25 <veremit> keep power supplies the same .. there will be less interference and any spikes should be better managed
May 22 20:16:49 <veremit> bbiab .. gotta scoot out
May 22 20:20:07 <SeveQ> The capacitors are connected to the stepper drivers to provide stable power to the steppers. They are pretty much independent from the BBB. The only connection between them is a stepper controller.
May 22 20:20:52 <SeveQ> However the whole system is powered by a PSU that provides max. 10 amps and turns off the power if this current is exceeded for security measures.
May 22 20:21:44 <SeveQ> The system consists of an Intel NUC board (Core i5 processor), the BBB, a custom PCB with some step-down-converters, relais and other components.
May 22 20:22:25 <mistawright> is there any reason why i not have a uInitrd in my boot folder? I am running ubuntu and guessing it doesnt use an intrd file
May 22 20:22:49 <SeveQ> The PCB converts the power for the NUC and the BBB (and all other components of the system) and turns on/off the power for the steppers.
May 22 20:24:11 <SeveQ> The relais for the steppers is controlled by a MOSFET. The FET is controlled by a GPIO from the BBB. Switching the relais on and powering the steppers resulted in a very high current due to the charging of the capacitors. That caused the first two brownouts.
May 22 20:26:58 <SeveQ> Maybe too much detail... just for you to understand how our system is structured and what caused the first two brownouts. I can't however explain the third brownout. There was no additional load on the BBB aside from some processes that were already running for a couple of minutes.
May 22 20:28:51 <SeveQ> ... anyway... I absolutely appreciate your effort to help us and wish you guys a nice evening! I'm gonna go to bed soon. It's late here... thanks a lot!
May 22 20:28:57 <johnwalkr> well BBB are a bit fragile on the IO pins so..
May 22 20:29:24 <johnwalkr> maybe the cause is different in the 3rd case
May 22 20:29:53 <SeveQ> Yeah, that's an experience I guess I will have to live with and deal with in future designs... I'd really like to avoid further dead BBBs somehow...
May 22 21:01:09 <veremit> try an RMA SeveQ .. it may not be totally terminal
May 22 21:25:47 <zmatt> teehee, ok the SSM clearly didn't like what I did there...
May 22 21:25:55 * zmatt just had his first chip reset due to "MPU Security Violation"
May 22 22:07:27 <nyt> wordup
May 22 22:08:42 <veremit> yo nyt
May 22 22:08:53 <nyt> whats good
May 22 22:09:03 <veremit> food is good .. and sleep. :)
May 22 22:17:58 <zmatt> pfft, that SSM is a fussy thing... it won't even let me have the Secure Monitor fetch its instructions from its usual memory region but with the NS-bit set... (... from L1 cache, where I was kind enough to preload them)
May 22 23:57:10 <Billy_> Can I only do 16bit transfers to ddr with the bbb?
May 22 23:58:20 <Billy_> Ahh k i see its 16bit ram found it ^^
May 23 00:02:21 <veremit> I don't believe its a 64bit processor :p
May 23 00:02:28 <veremit> lol
May 23 00:28:18 <Billy_> lol
May 23 01:06:09 <nate_> Hi guys, does anyone know the root password for the new REV C boards?
May 23 01:07:25 <veremit> if its debian .. there isn't one .. use "sudo su" and your debian pwd.
May 23 01:07:39 <nyt> or just sudo -c
May 23 01:07:40 <nyt> lol
May 23 01:07:51 <nyt> err sudo -s
May 23 01:07:53 <veremit> else it was root/root at one time. or root/<nothing>
May 23 01:08:03 <zmatt> -s or -i depending on whether you want a clean environment
May 23 01:08:04 <veremit> one less key nyt :P
May 23 02:24:37 <foreverska> anyone here use config-pin?
**** ENDING LOGGING AT Fri May 23 03:00:01 2014