Problem still exist on Revision B. The solution proposed by AndreTaneGlen by recompiling to make it look for a sequence works like a charm. I've mended all my BBB from revision A5 to B with this fix and they have since then never failed to boot.
Just to be clear, this is how I edited the u-boot source to make it work: u-boot/include/configs/am335x_evm.h: #define CONFIG_AUTOBOOT_PROMPT "Type <delay> in %d seconds to get to U-boot-prompt\n", bootdelay #define CONFIG_AUTOBOOT_DELAY_STR "delay" u-boot/include/configs/ti_armv7_common.h: #define CONFIG_BOOTDELAY 3 Best regards, Marcus On Monday, May 5, 2014 5:06:37 PM UTC+2, Gerald wrote: > > What revision are these boards? You may want to check here: > > > http://www.elinux.org/Beagleboard:BeagleBoneBlack#Board_Revisions_and_Changes > > Gerald > > > > On Mon, May 5, 2014 at 9:47 AM, <[email protected] <javascript:>> wrote: > >> Hi, >> >> Thanks a lot to all of you guys for this effort... >> >> I have been stuck for weeks with 50+ beagle's that wouldn't reboot (or >> startup) 1/10 times... >> It is driving me crazy... >> >> Do I really assume correctly that all that is needed to fix this is >> replace the two files? >> No flashing or otherwise "enabling" the changes? >> >> I'm testing with one of them now and sofar it's coming back every time, >> but I have no idea how to really check if the changes did "stick" >> (they're all in a remote location) >> >> Thanks, Tony >> >> >> On Wednesday, April 23, 2014 5:36:11 PM UTC+2, [email protected] wrote: >>> >>> Hello, >>> Basing on the correct answer of Andrew Glen,I attach the link of the >>> compiled files to avoid the boot problem, you just need to replace the >>> original files "MLO" and "u-boot.img" on eMMC and SD card, sorry for my bad >>> english, regards: >>> >>> https://www.dropbox.com/sh/98xacnk466xfpza/uTlii1hrsg >>> >>> El miércoles, 31 de julio de 2013 16:48:54 UTC-5, >>> [email protected]ó: >>>> >>>> Hi guys, >>>> >>>> we have a problem with our Beagle Bone Black (A5C). We are using Ubuntu >>>> Raring 13.04 armhf v3.8.13-bone21 (2013-06-14) on the eMMC (no SD Card). >>>> The Beagle Bone is placed in a case and we have connected it to a DC power >>>> supply. Sometimes (I would say every 5 to 10 times), when we are plugging >>>> in our power supply, the BeagleBone powers on (Power LED is on), but >>>> nothing more happens (none of the other four LEDs is on). If we are now >>>> removing the power supply and putting it in again, the BBB starts >>>> normally. >>>> I guess the power supply is strong enough: 5A@5V. >>>> >>>> Thanks for your help in advance. >>>> >>>> Regards, >>>> duckhunter >>>> >>> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> For more options, visit https://groups.google.com/d/optout. >> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
