**** BEGIN LOGGING AT Sat Jul 27 02:59:58 2013 Jul 27 05:33:25 Whay is the power consumption of the black? Jul 27 05:33:54 *what Jul 27 05:49:25 slow night Jul 27 05:51:11 Willdude123, it depends on what its doing, but it can run off the 500mA from a usb port no problem Jul 27 06:17:22 JIHAD! Jul 27 06:17:34 chocolate ~! Jul 27 06:17:43 that too :) Jul 27 06:25:10 radium! Jul 27 06:53:49 yawn ! Jul 27 06:54:04 Oh sorry my bad JIHAD ! Jul 27 06:54:19 JIHAD chocolate maximus Jul 27 06:54:25 ( with beer ) Jul 27 06:58:34 * dm8tbr sacrifices a chocolate cookie to the DeliciousChocolateTroll Jul 27 06:59:58 * m_billybob sacrifices a pillow to his bed Jul 27 07:00:00 NI NI Jul 27 07:00:21 we are the knights who say... Jul 27 07:00:33 lol exactly what i was just thinking Jul 27 07:00:38 night all Jul 27 07:27:54 bing. Jul 27 07:31:30 whos awake Jul 27 07:33:47 nope Jul 27 07:44:58 * KotH laughs at all those people who try to use the rpi as a precision ntp server Jul 27 07:45:19 mrpackethead: awake? not here. no need to, actually Jul 27 07:45:26 lol. Jul 27 07:45:42 precision is relative Jul 27 07:46:09 +/- 1 day in a million years Jul 27 07:46:38 yeah. but they are talking sub ppm level ^^; Jul 27 07:46:50 KotH: and using a Beagle would be any better how? Jul 27 07:47:13 NTP is'nt good for sub ppm anyway. Jul 27 07:47:36 it is useful for making security log files useful. Jul 27 07:47:57 keeping all your machiens reletively close is helpful Jul 27 07:48:33 well... with the beagle you get less jitter on the ethernet packets, ie sub ms timing is possible, thus sub ppm within a couple of hours Jul 27 07:49:05 yeah, sub ms is probalby doable Jul 27 07:49:11 with the rpi you have an inherent jitter of 1-5ms on everything Jul 27 07:49:20 even on gpio "interrupts" Jul 27 07:49:31 I just laough at PI Jul 27 07:50:13 :-) Jul 27 07:50:29 I'm starting a Beagle-clone project Jul 27 07:50:40 i hope i hav'nt chewed off too much Jul 27 07:50:41 :-) Jul 27 07:51:02 hard to get a company to call you to sell you some software Jul 27 07:51:38 for normal use cases time precision in the order of some ms ist sufficient. so the rpi is probably not THAT bad as a ntp server. Jul 27 07:51:44 i seriously would have contemplated buying a cadence orcad system Jul 27 07:51:51 but they dont' seem to want to sell it Jul 27 07:52:01 mrpackethead: clone as in the last pic of http://www.sandraandwoo.com/comics/2012-11-19-0430-software-engineering-now-with-cats.png ? :) Jul 27 07:52:29 Mode-M: what is "normal" use case for you? Jul 27 07:52:52 KotH: clock sync for kerberos Jul 27 07:53:03 mrpackethead: no luck with zoran, mentor... either? Jul 27 07:53:05 to have a precise time for logging purposes maybe Jul 27 07:53:06 kblin: lol Jul 27 07:53:08 KotH: asomethign like that Jul 27 07:53:09 :-) Jul 27 07:53:17 and keeping VMs from drifting too far Jul 27 07:53:23 KotH: i have a proejct where i need abogu 25,000 units Jul 27 07:53:30 that's what I do use ntp for Jul 27 07:53:37 and i dont' want to use capes Jul 27 07:54:51 and your biggest problem is getting some eda software? Jul 27 07:54:53 wtf? Jul 27 07:57:13 well, jsut cadence Jul 27 07:57:18 dont' return phone calls or emails Jul 27 07:57:19 doh. Jul 27 07:57:50 Mode-M: i know a couple of people who need better than us accurate(!) time stamping (accurate as in deviation from UTC(BIPM) ) Jul 27 07:58:22 mrpackethead: they dont want your money! go somewhere else Jul 27 07:58:32 it woudl seem Jul 27 07:58:42 i have to buy at least 3 seats Jul 27 07:58:44 if not more Jul 27 08:01:11 part of me wants to says "screw you", i'll stay with clunky eagle Jul 27 08:02:50 how about getting a dozen people together and start an oss, professional grade eda package :) Jul 27 08:04:36 great idea. Jul 27 08:04:41 KotH: but I hope people that need time stamping that accurate know why they need it and how to get it Jul 27 08:04:47 let me know when you are finsihed Jul 27 08:05:26 mrpackethead: *g* Jul 27 08:06:01 kblin: yeah... they know it.. and they use h-masers with TWSTT Jul 27 08:06:11 mrpackethead: My GPS Cape cries at your lack of want for capes. Jul 27 08:07:02 gps-cape Jul 27 08:07:03 cool Jul 27 08:07:05 but why? Jul 27 08:07:12 why not? Jul 27 08:07:26 thats a 2nd question Jul 27 08:07:44 what would we use a gps-cape for Jul 27 08:09:32 it's set up for precision timing Jul 27 08:09:53 so you could use it for that, or as an NTP server, or positioning of a robot Jul 27 08:09:57 Shadyman: hmm? i thought you didnt use a -T model? Jul 27 08:10:05 KotH: Well, not exactly, no. Jul 27 08:10:15 KotH: But I did pinout the fancy time pulse pins Jul 27 08:10:19 ok. so i have to put the cape somewhere it can see the sky? Jul 27 08:10:22 gpio/alt function pins Jul 27 08:10:23 Shadyman: how can you call that thing "precision timing" then? ;) Jul 27 08:10:34 mrpackethead: Nope, external antenna :) Jul 27 08:10:38 ahh. Jul 27 08:10:46 KotH: Shhh ;) Jul 27 08:10:48 so, a long bit of coax Jul 27 08:10:51 Shadyman: the pps signal is not the thing you want the -T model for! ;) Jul 27 08:11:02 expensive connectors and an antenna Jul 27 08:11:09 probably have to feed power to it Jul 27 08:11:11 ? Jul 27 08:11:13 mrpackethead: That's onboard. Jul 27 08:11:19 whats onboard? Jul 27 08:11:25 mrpackethead: The SMA connector on teh cape is ~$2.50 in 1's Jul 27 08:11:29 mrpackethead: sma, the lea modules have on-module power supply for antenna Jul 27 08:11:37 external gps antenna, powered, is around $5/ea Jul 27 08:11:48 still have to run cable out to it Jul 27 08:11:58 it comes with a 3 or 5 meter cable? Jul 27 08:12:00 how much cable can you put between the anteanna and the cape? Jul 27 08:12:01 mrpackethead: gps antennas cost 20usd or so Jul 27 08:12:08 mrpackethead: a geodetic 1k usd or so :) Jul 27 08:12:25 mrpackethead: A fair bit, assuming it's properly shielded Jul 27 08:12:33 and the antenna is active Jul 27 08:12:43 shielding is actually not the prob, but attenuation of the cable ^^' Jul 27 08:12:47 kinda easier and cheaper to put a self contained module where it can see the sky? Jul 27 08:12:53 standard is something around 5-10m Jul 27 08:13:01 and how woudl a positon my robot if its in a facotry? Jul 27 08:13:02 with good antenna amp, you can go to 100m Jul 27 08:13:12 starting to get lots of bits Jul 27 08:13:29 mrpackethead: there are gps repeaters ;) Jul 27 08:13:33 woud'tn you just be better to put the entire GPS with integrated antenna ( woth $15 ) on the roof Jul 27 08:13:45 mrpackethead: so what's your plan for indoor positioning Jul 27 08:13:51 KotH: ahh, i need some of those. Jul 27 08:13:59 How far can you repeat the signal Jul 27 08:14:02 ? Jul 27 08:14:09 mrpackethead: within the building, afaik Jul 27 08:14:17 and i love the idea of everywhere being the same place Jul 27 08:14:28 mrpackethead: but check local regulations, the use of gps repeaters is forbidden in most countries, afaik Jul 27 08:14:43 KotH: Though, the NEO-6's are pretty darn strong receivers, no? Jul 27 08:14:52 Shadyman: yeah, they are Jul 27 08:15:11 "strong" Jul 27 08:15:15 well Jul 27 08:15:15 Shadyman: given thta you didnt screw up the impedance on the input stage ;) Jul 27 08:15:19 shhh Jul 27 08:15:29 s/strong/sensitive Jul 27 08:15:40 gimme a break, it's 4:15AM :P Jul 27 08:15:52 not my fault Jul 27 08:16:01 Sure is. You let the world keep turning. Jul 27 08:16:18 so anything time-related is KotH's fault automatically. Jul 27 08:16:28 if it was me, i would have stopped the world 4h ago Jul 27 08:16:40 and restarted it somewhen around noon again Jul 27 08:16:40 but then we wouldn't be able to get anything done!~ Jul 27 08:16:48 Good point. Jul 27 08:17:16 it's 10:17, i havent left the hotel yet, and i'm already sweaty Jul 27 08:17:25 KotH: Could mrpackethead set up some kind of agps beacon? Jul 27 08:17:35 Though I'd imagine that's regulated too. Jul 27 08:17:49 not if he uses an ism transmitter Jul 27 08:18:16 but that doesnt help if you dont get the gps signals Jul 27 08:18:23 mrpackethead: So what is your use case? Jul 27 08:18:41 blinking leds Jul 27 08:18:44 :o Jul 27 08:18:45 lots of them Jul 27 08:19:18 I've also got a GPS-with-antenna-on-top Xbee-pinout thing Jul 27 08:19:53 one of those $15 things and some caps and such Jul 27 08:22:09 Shadyman: use case for GPS? Jul 27 08:22:12 not a lot Jul 27 08:22:13 yeah Jul 27 08:22:13 :-) Jul 27 08:22:32 i did a gondola project a few years ago Jul 27 08:22:32 Ah. More for timing, then? Jul 27 08:22:37 at Busch Gardens Jul 27 08:22:42 nice Jul 27 08:22:46 the gondola goes around the park Jul 27 08:22:51 we programmed "zones" Jul 27 08:23:13 as the car goes through differnet parts of the park, it played differnet light patterns Jul 27 08:23:20 and differnet colours. Jul 27 08:23:26 nifty Jul 27 08:23:36 was pretty cool Jul 27 08:24:57 mrpackethead: What are you looking for sub-PPM accuracy for? Jul 27 08:25:10 i[m not Jul 27 08:25:18 ah. Jul 27 08:25:48 sub day will be just fine Jul 27 08:25:57 lol Jul 27 08:26:31 a sundial on the roof with light sensors on each point Jul 27 08:26:35 ;) Jul 27 08:28:08 Shadyman: i'm looking for sub us timing ;) Jul 27 08:28:10 mrpackethead: would these 25,000 things be connected by radio in any way? Jul 27 08:28:42 no. Jul 27 08:28:49 actually possibly Jul 27 08:28:51 they coudl be Jul 27 08:29:05 but they will be "internet" connected Jul 27 08:29:06 $2 ISM transceiver :3 Jul 27 08:29:09 so we dont' care Jul 27 08:29:12 kay Jul 27 08:29:20 a decently-tuned RTC, then? Jul 27 08:29:37 yes, an RTC synced to NTP Jul 27 08:29:40 is what i'll used Jul 27 08:30:27 neat. Jul 27 08:30:40 alrighty, time to sleep, and pretend KotH stopped time 4 hours ago. Jul 27 08:30:47 g'nite Jul 27 09:13:36 how can i easily found which mmcblk is eMMC? Jul 27 09:14:03 i'm booting from usb so the thingie that eMMC is mmcblk1 cannot be applied Jul 27 09:14:32 can you tell by looking at the contents? Jul 27 09:14:41 I'd expect that the device has some sort of sysfs entry or something that tells the manufacturer Jul 27 09:14:51 maybe it even says that it's an emmc and not an SD Jul 27 09:15:07 as in, if it doesn't tell "I'M AN eMMC" in big red letters in a text file on the root partition, then it's probably an external card Jul 27 09:15:17 the idea is that i have a custom small ramdisk with busybox; receive data from serial and write it to emmc Jul 27 09:15:36 and i need to start from the assumption that emmc has corrupt data Jul 27 09:15:42 or just set something unique in the partition table or identify the emmc filesystem by hash instead of device node Jul 27 09:15:48 ah Jul 27 09:15:57 then look at sysfs or such Jul 27 09:16:06 I'd expect that to have some entry Jul 27 09:16:07 usa a udev rule Jul 27 09:16:10 *use Jul 27 09:16:21 my board is still shipping so can't check and have a bbw here only Jul 27 09:16:46 SUBSYSTEMS=="mmc", ENV{DEVTYPE}=="disk" Jul 27 09:16:52 something like that to match Jul 27 09:17:07 if that's unique, yes, even better Jul 27 09:20:29 ogra_: don't think i have udev in busybox Jul 27 09:20:45 true Jul 27 09:20:48 sysfs it is then Jul 27 09:20:59 or devfs or proc Jul 27 09:21:02 1st time in this area Jul 27 09:21:19 these thingies are for http://beagleboot.vdev.ro/ Jul 27 09:21:56 well, usually an mmc device is named mmc* ....and a usb-storage device is usually sdX ... you should be able to make it our by devicename ... its just not guaranteed if there could be udev mangling the names Jul 27 09:22:28 but if you dont have udev you should be able to rely on naming Jul 27 09:22:42 s/our/out/ Jul 27 09:22:55 let me boot that thingie to see *boot my ramdisk* Jul 27 09:25:53 ogra_: when i insert the uSD card a new device should be created in /dev ? Jul 27 09:26:07 theoretically, yeah Jul 27 09:26:20 practically nothing changes with my ramdisk Jul 27 09:26:24 (depends on the kernel config) Jul 27 09:27:20 * ogra_ hasnt used kernels without devtmpfs in ages , i'm probably spoiled :) Jul 27 10:47:45 arr.. land ahoy Jul 27 10:48:05 a sailor? Jul 27 10:48:23 got caught out by a fog bank out at sea with a small boat - no radar - today Jul 27 10:48:49 happy to be back ;) Jul 27 10:49:13 no gps? Jul 27 10:50:03 yea sure I had multiple GPS Jul 27 10:50:19 but map accuracy here is not always great Jul 27 10:50:29 oh good. at least you werent completly blind Jul 27 10:50:35 you'd need at least a gps nautical map, especially if Vaizki happens to sail between turku and åland Jul 27 10:51:51 I was out at Bengtskär, the big lighthouse Jul 27 10:52:09 there's no official routes there Jul 27 10:52:56 Hi. I'm trying to get beaglebone black to use the microSD slot as removable storage, but if I plug in a microSD card after boot, it doesn't show up as a device. I suspect I need to mess with devicetree to make it work. Anybody have any hints? Jul 27 10:53:17 sat the fog out at a fishermen's emergency shelter, enjoying nature Jul 27 10:54:26 hmmh.. what is this wwan0 device my BBB has when a 3G modem is plugged in.. Jul 27 10:54:47 I have ppp0 with IP address and a wwan0 that looks like Ethernet.. what is this new-fangled magic.. Jul 27 10:55:02 ...as an added bonus, I'd like to set it up so that inserting a microSD doesn't rename the device that my root partition is sitting on... Jul 27 10:55:24 adapted: been there, I didn't get it to work... Jul 27 10:56:12 Vaizki: might be that your modem can do either ppp or cdc-ether Jul 27 10:56:30 if you play with uEnv.txt you can get it to always boot from eMMC even though there is a uSD card in Jul 27 10:56:44 but I don't know how to have it recognize the card if it's plugged in after boot Jul 27 10:56:54 dm8tbr: cdc-ether? Jul 27 10:57:09 I haven't used a modem with linux since the 90's.. Jul 27 10:57:17 shows up as a lan device Jul 27 10:57:18 vaizki - yes, I know how to solve the uEnv problem Jul 27 10:57:37 dm8tbr: and how do I make it connect? just ifconfig up it? Jul 27 10:57:41 and you might be able to just use dhcp on the device to get an IP, but I never used one of those Jul 27 10:58:33 hmm interesting Jul 27 10:58:57 too bad this usb 3g modem seems to be another piece of cfrap Jul 27 10:58:58 what I don't know is how to make the microSD behave like microSD does on practically every other box I have Jul 27 10:59:56 the usb modem hangs so badly that a reboot won't fix it, needs power cycle Jul 27 11:00:11 hmmm.. can I do i2c to the PMIC to force a power cycle? Jul 27 11:00:39 even a watchdog reboot won't fix the modem Jul 27 11:05:27 Vaizki: might need to put a GPIO controlled FET in the Vusb line Jul 27 11:05:59 but then I have no idea if Vusb is somehow switchable Jul 27 11:06:07 yea thats my last course of action Jul 27 11:13:47 Hello :D Jul 27 11:31:38 hmmmm there's a TPS2051 on board Jul 27 11:35:24 apparently there is already a SoC pin connected to TPS2051 EN-pin which would allow switching off USB power :O Jul 27 11:47:31 Hi folks, can anyone guide me how to boot from a different kernel image in Ubuntu? I'd like to boot Ubuntu's img-3.8.0-26-generic (instead of img-3.8.13-bone21). Any help would be appreciated Jul 27 11:56:41 Vaizki: given, that the design is not tuned for power saving it might be that some things are not being utilized. If you're lucky it could be possible though to modify things accordingly. Jul 27 13:37:44 does anybody have a small .img with ubuntu/debian/angstrom *any linux* that can be flashed on eMMC? i need a small .img <500 megs to test my GSoC project Jul 27 13:58:54 vvu, you need a ready made image? or can you make an SD card with another linux box (format fat, ext4 and untar) Jul 27 13:59:49 ready made one Jul 27 14:00:19 hmmh.. I don't know any that are so small Jul 27 14:00:27 i can make an sdcard with one then ddit to a .img or somehow but the issue is the size Jul 27 14:00:42 big .img takes like 20 mins to transfer from android to BBB Jul 27 14:00:50 i'm doing an usb boot on BBB via android Jul 27 14:01:35 now it's the debugging part and takes time Jul 27 14:01:47 wait.. what are you doing with the resulting image then? Jul 27 14:02:29 you are using an android device to provide a tethered usb boot to BBB? Jul 27 14:02:33 on the BBB i have a custom ramdisk that has a daemon which listens on serial for data; reads data writes it to eMMC Jul 27 14:02:46 fully boot/flash BBB from an android device Jul 27 14:02:57 http://beagleboot.vdev.ro/ Jul 27 14:03:00 ok sounds nice Jul 27 14:03:25 well you could look at Arch or just put the Ångström minimal image? Jul 27 14:03:35 http://downloads.angstrom-distribution.org/demo/beaglebone/ Jul 27 14:03:47 i don't care the content of the image, just want a really small one. i want to test my writing code. Jul 27 14:03:52 the second file in that list is the minimal Ångström without X etc Jul 27 14:04:05 I haven't used it myself though Jul 27 14:04:23 but the .xz is like 12MB Jul 27 14:04:45 seems nice, need to see it when it's not archived the filesystem size Jul 27 14:04:54 need to resize it Jul 27 14:04:58 *maybe* Jul 27 14:05:12 yea well I guess it's just a tarball of the rootfs and not a ready image Jul 27 14:06:46 so you should make the 2 partitions, then write them full of zero to have them compress nicely when dd:d, then untar the rootfs to the ext4 partition and get the MLO, uboot.img and uEnv.txt on the first FAT16 partition.. then dd the whole thing into an image Jul 27 14:07:46 I would imagine that zero'd out partitions compress better than ones with random data ) Jul 27 14:07:51 yep gonna take the problem in my hand and do it Jul 27 14:08:01 like it should be, stop searching for a workaround Jul 27 14:09:00 can I ask why you are doing this? Using an Android device as a eMMC image provider? Jul 27 14:09:31 it's my Google Summer of Code project Jul 27 14:09:52 ah Jul 27 14:10:07 take a bricked/empty eMMC BBB connect it to an Android device and run a small ramdisk or flash the eMMC with a big angstrom/whatever distro you like Jul 27 14:10:23 how do you "run the small ramdisk"? Jul 27 14:10:27 boot from uSD? Jul 27 14:10:36 nop Jul 27 14:10:44 everything from Android Jul 27 14:10:50 usb boot the AM335x chip Jul 27 14:10:50 serial boot? Jul 27 14:11:01 oh ok.. Jul 27 14:11:03 usb Jul 27 14:11:21 usb boot is the same as net boot with bootp/tftp and that crap Jul 27 14:11:39 basically everything is usb communication but with ethernet packets Jul 27 14:11:46 so the android has too look like a usb ethernet? Jul 27 14:12:01 or is it some kind of custom protocol? Jul 27 14:12:26 the idea is to take a stock android and make it to work without any kernel driver that will understand RNDIS*ethernet over usb* Jul 27 14:12:33 android is the usb host Jul 27 14:12:45 and i am using the usb host API from android to speak with the chip Jul 27 14:13:03 and when you get a kernel + initrd running the usb "network" is torn down and the roles change, then the android becomes the guest and plays a usb serial to the ramdisk? Jul 27 14:13:20 the same logic applies when the BBB runs my ramdisk Jul 27 14:13:35 my ramdisk has a deaomn that modprobes g_serial Jul 27 14:13:48 ah ok so it's device mode Jul 27 14:13:50 yep Jul 27 14:14:50 i'm not sure if people will use the project but it's fun to develop it Jul 27 14:14:53 if you want a really small test image, you may not need linux at all? just check out some RTOS demo images or something? Jul 27 14:15:22 mhmh think i can get it to work even with big images, just made the sent buffer size from android Jul 27 14:15:30 and speed increased Jul 27 14:15:31 qnx, freertos etc might have an image Jul 27 14:16:03 i was sending 512 bytes chunk of data, now went to 1024 to see if communication is stable Jul 27 14:16:39 [kernel] ZubairLK opened pull request #53: 3.8 continuous adc (3.8...3.8-continuous-adc) http://git.io/LwAK_A Jul 27 14:29:35 vvu: why not used zmodem or something... Jul 27 14:30:27 Vaizki-: mhmh i should code zmodem protocol at the android side any will take me time Jul 27 14:30:35 i have my midterm evaluation on monday :) Jul 27 14:30:47 i am just plain reading/writing Jul 27 14:32:36 Vaizki-: any idea how i can resize the ext4 partition from an .img ? Jul 27 14:32:44 i'm a bit noob in this area Jul 27 14:33:06 you mean make it smaller? Jul 27 14:33:28 yep Jul 27 14:33:55 I would just tar it up (as root), recreate the partition and restore from the tar.. Jul 27 14:34:14 it's a full filesystem with lots of 0 at the end, data ends in like 300 megs for my ubuntu for BBB Jul 27 14:34:46 but I have to go to dinner.. there's 5 entire pigs being roasted on a nearby island, so off we go :) Jul 27 14:34:55 boat time& Jul 27 15:30:00 wu, was reading your convo from earlier. Was curious how you worked around g_ether kernel loading Jul 27 16:00:52 good morning everyone. Jul 27 16:01:52 I was wondering if anyone knows how to access CPU temp on a black running arm-hf ubuntu 13.04. Lm-sensors seems to be missing something and a cant seem to find anything in the /sys or /proc dirs. Jul 27 16:02:47 there is kernel work needed for that Jul 27 16:02:50 someone was working on that the other day Jul 27 16:02:53 there may be a patch out there Jul 27 16:03:26 thanks maxinux, any ideas what I could be googling for? Jul 27 16:03:55 arm 335 cpu temp sensor patch? i am not sure Jul 27 16:04:14 maxinux, thanks thats a much better start. I appriicate it Jul 27 16:56:28 Just noticed the BB-A6 have JTAG, built in ( http://beagleboard.org/static/beaglebone/latest/Docs/ccs-jtag-simple.htm ). Jul 27 16:56:55 Can I use this JTAG, to interface other ARM chips (off board)? Jul 27 16:57:43 ((belive I just need to daisy -chain the serial buss)) Jul 27 16:59:33 (((have a briked leaflabs board))) Jul 27 17:05:55 the link i provided said "JTAG emulator", and there are no dirrekt link (used google) Jul 27 17:06:19 emulator..? Jul 27 17:16:35 guess, not possible Jul 27 17:22:30 http://elinux.org/BeagleBone#BeagleBone_JTAG_Debugging Jul 27 17:22:37 thx Jul 27 17:43:35 they stripped away this feature in BBB, why nobody say a beep, HELLO anybody online??? Jul 27 17:51:08 just solder it Jul 27 17:51:32 it was required to bring the price down (the ftdi is expensive) Jul 27 17:51:45 and people rarely used it anyway Jul 27 17:52:29 cde: so its in the ftdi -chip, and BBB are missing this chip? Jul 27 17:57:07 yes. you can still buy the original beaglebone if you need it absolutely Jul 27 18:01:53 win 38 Jul 27 18:02:56 (was just speculating if I could use its JTAG, to debrik another device. but doesnt look convenient, if ever possible) Jul 27 18:04:35 hmm couldn't you bit-bang the jtag interface of a bbb from another? not sure what the jtag voltage levels are on the bbb Jul 27 18:06:33 cde: belive its was just 1.8v (its a bb-a6 I have) Jul 27 18:07:35 then the gpio won't cut it unless you can adapt their level I guess Jul 27 18:08:10 why would you need jtag to unbrick? Jul 27 18:08:38 you don't on the bbb afaik Jul 27 18:08:58 correct Jul 27 18:09:06 bootloader in rom will boot from uSD Jul 27 18:09:17 not on any beagle family board Jul 27 18:10:26 mru: not sure I follow you Jul 27 18:10:35 I have damaged the bootloader on another device (also ARM something), jsut something as an JTAG that can save it. BUT JTAG isnt convenient stuff (using Linux myself and sean horrible tuff about it .. Jul 27 18:10:39 cde: there is no bootloader in rom Jul 27 18:10:59 there must be. couldn't be cabled logic Jul 27 18:11:17 cde: no beagle can be bricked Jul 27 18:11:40 I agree. nonetheless I'm pretty certain the SoC contains a bootloader in rom Jul 27 18:11:45 cde: there is code in rom that looks/does special things, but it is not a bootloader Jul 27 18:12:01 oh ok Jul 27 18:12:03 yes, there's a loader in rom Jul 27 18:12:36 but you typically use that to load the real boot loader Jul 27 18:13:14 phoohb: get a flyswatter or something Jul 27 18:13:20 phoohb: http://www.tincantools.com/product.php?productid=16153&cat=0&page=1&featured Jul 27 18:14:18 phoohb: stm32 is well supported on openocd using a flyswatter2 Jul 27 18:15:05 prpplague: mru oki, thx. Jul 27 18:16:15 eevblog, had another big dongle, another story Jul 27 18:29:25 <_SY_> hello Jul 27 18:34:33 EMMC flasher failure- powe light no boot- any ideas pleas or RMA time Jul 27 18:34:40 I'm building from yocto using the meta-ti layer for the beaglebone but I can't seem to get it to boot...I get 4 solid user lights....unfortunately I don't have a serial cable yet but was wondering if there might be something I'm forgetting to do Jul 27 18:35:27 <_SY_> Do you have an image on SD card? Jul 27 18:35:35 yes Jul 27 18:36:03 <_SY_> ok, have you inserted the SD card, held down the boot button, then powered BBB? Jul 27 18:36:17 I have tried to find a solution and it appears KO'd tried to reload or boot sd card image- no go Jul 27 18:36:25 Yes...I'll do again tho Jul 27 18:36:33 <_SY_> How are you powering the BBB? Jul 27 18:36:45 I have 5v supply Jul 27 18:36:49 <_SY_> ok, good Jul 27 18:37:19 <_SY_> it can take quite a while for the image transfer to complete...allow at least 45 mins to 1 hour. Jul 27 18:37:32 Hello. I just installed the image from http://rcn-ee.net/deb/flasher/wheezy/BBB-eMMC-flasher-debian-7.0.0-2013-06-14.img.xz. It all boots up fine but /var/lib was missing, so I had to manually create a whole bunch of files and directories before apt-get update would run. Is this normal? Jul 27 18:37:37 Also, dpkg-reconfigure won't work, perl complains about strict.pm not being in @INC. Jul 27 18:37:59 It should boot from the sd tho right Jul 27 18:38:06 this is not a transfer image Jul 27 18:38:14 <_SY_> I use the Angstrom image, I tried others, but Angstrom seems to have the best support for the BBB and is the most complete. Jul 27 18:38:43 <_SY_> Once you have transferred the image, check updates, opkg update, then opkg upgrade Jul 27 18:38:58 mine on 2 amp usb adapter Jul 27 18:40:15 <_SY_> I use one of these, it powers two BBB's at the same time: http://www.amazon.co.uk/gp/product/B0095RDIHG/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1 Jul 27 18:45:27 anyone power light no boot loader activity Jul 27 18:54:05 <_SY_> Did you say you do or do not have a serial cable with FDTI header ? http://www.amazon.co.uk/gp/product/B0095RDIHG/ref=oh_details_o02_s00_i00?ie=UTF8&psc=1 Jul 27 18:54:38 I don't I need to get one Jul 27 18:54:41 <_SY_> I got into a state where I thought I had bricked the BBB, but once I got an FDTI cable I was able to recover it. Jul 27 18:55:00 <_SY_> I got the one in the link I posted, works great Jul 27 18:55:00 I think it may be an issue with uEnv.txt Jul 27 18:55:36 pulled up a travel plug> Jul 27 18:55:37 <_SY_> Could be, mine was, but you cannot access uEnv.txt to change it until you have booted, catch 22....you need the serial cable. Jul 27 18:56:05 It boots fine when I pull the sd-card out Jul 27 18:56:57 <_SY_> What are you trying to use the SD-card for? Jul 27 18:57:25 Just to test the build system and make sure it is working Jul 27 18:57:33 Eventually I will be booting from NFS Jul 27 18:57:41 <_SY_> At the moment there is a kernel issue that prevents you using an SD card as additional storage....(I think), I bought a 32Gb USB stick, which works great. Jul 27 18:57:57 <_SY_> You can't boot from SD card either without pressing the button. Jul 27 18:58:44 you can remove MLO from nand and force SD boot Jul 27 18:58:57 <_SY_> http://www.play.com/PC/PCs/4-/32218263/-/Product.html Jul 27 18:59:29 <_SY_> I boot from eMC then use USB stick for additional storage. Jul 27 19:05:01 <_SY_> if your saying it needs FDTI when flashing a stock image- I'm afraid that element 14 will be having it back, to fail ungracefully on stock image is too sketchy for my intended use Jul 27 19:06:11 <_SY_> Unfortunately there are a number of ways in which you can render the BBB almost a brick, and the only way to recover it is with an FDTI cable Jul 27 19:06:51 <_SY_> The upgrade and update path using opkg can sometimes fail and I've had several instances where I have had to start over as a result. Jul 27 19:12:54 Disregard my earlier question - I think I managed to kill the flashing process before it had finished. Fixed now :D Jul 27 19:13:44 <_SY_> thanks for the clarification, it's going to be an element 14 return or RMA, quite simply the raspberry pi will do what I want and the beaglebone black was alternative- experimental breaking on aprroved update is not suitable for my purpose Jul 27 19:16:47 <_SY_> I do like the BBB, its a great product, but its also a bit fragile in terms of updates and upgrades. Jul 27 19:17:25 I am a beaglebone newbie. Did anyone use StarterWare with BeagleBone or ave an opinion Jul 27 19:17:29 the bbb is innocent Jul 27 19:18:14 _SY_: Can you do bad things which mean you can't boot off a microsd card? Jul 27 19:18:35 aholler: no board is innocent Jul 27 19:18:41