I know about boot. But both oscillators is not woking !!! And processor stopped in PORz sequence. I can change boot sequence to boot from UART but processor should leave PORz sequence at first and remove reset from RESET pin.
2016-10-28 13:56 GMT+03:00 Paul Plankton <[email protected]>: > What does "old" and "new" mean - which revision? I know the BeagleBone > Green no longer uses a FAT32 partition with a MLO-file but the > bootloader-code located in or behind the MBR. May be this is the case on > some BBB's too and you simply killed all software? > > 2016-10-28 12:31 GMT+02:00 Николай Курочкин <[email protected]>: > >> As I said erlier it happens on new revision boards. Old boards works >> good. if you have many free boards I can give you binary and source code to >> test. >> >> 2016-10-28 13:24 GMT+03:00 Paul Plankton <[email protected]>: >> >>> Am Dienstag, 11. Oktober 2016 21:13:22 UTC+2 schrieb john3909: >>>> >>>> You will see some protection circuitry at the bottom center of the >>>> sheet. This ensures the voltage difference between the 3v3 and 1v8 is never >>>> greater than 2V. The BBB does not have any such circuitry so when the 5V >>>> drops quickly, it is possible for the 1v8 to drop quicker than the 3v3 and >>>> hence killing the processor. >>>> >>> >>> This is strange. I have several hundreds of BBB-based devices out there >>> that do not have any of these protections. None of them died because of >>> such a problem. >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "BeagleBoard" group. >>> To unsubscribe from this topic, visit https://groups.google.com/d/to >>> pic/beagleboard/urD1WKDiD2w/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected]. >>> To view this discussion on the web visit https://groups.google.com/d/ms >>> gid/beagleboard/a5154197-fdc1-46cc-a694-4ca11d7c7839%40googlegroups.com >>> <https://groups.google.com/d/msgid/beagleboard/a5154197-fdc1-46cc-a694-4ca11d7c7839%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> 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 a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit https://groups.google.com/d/to >> pic/beagleboard/urD1WKDiD2w/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected]. >> To view this discussion on the web visit https://groups.google.com/d/ms >> gid/beagleboard/CADsmfyxuf0rVyx%3D-Jnht6TWXcG6-b6ar2hNz%3Dc- >> W2U04K2%3DF8w%40mail.gmail.com >> <https://groups.google.com/d/msgid/beagleboard/CADsmfyxuf0rVyx%3D-Jnht6TWXcG6-b6ar2hNz%3Dc-W2U04K2%3DF8w%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> 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 a topic in the > Google Groups "BeagleBoard" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/beagleboard/urD1WKDiD2w/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > [email protected]. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/beagleboard/CAMCbi4053QOyH%2B1HaC6%2BqYDmTFHjx6gu_ > J2mzm24gLrVn57Fhg%40mail.gmail.com > <https://groups.google.com/d/msgid/beagleboard/CAMCbi4053QOyH%2B1HaC6%2BqYDmTFHjx6gu_J2mzm24gLrVn57Fhg%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/CADsmfyyX3tR3HKRAHKzR_Bs%2BjFukukWv4%2B%2B5AVEAJ%2BEB2AHrog%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
