Gerald, it's like the board hangs at power down, but I can not be 100% sure. The reason why I "assume" it's at power down, is that the heartbeat blink stops, but the rest of the LEDs stay on, and the ethernet port light still blinks.
The board I experienced this on last night is an Element14 RevC, but I do also have a circuitco A5A that exhibits the same thing. On Wed, Dec 2, 2015 at 3:22 PM, Gerald Coley <[email protected]> wrote: > Is this on power up or is this state happening some time later? If it is > on power up, then the power supply most likely is the issue based on the > ramp requirements of the PMIC. > > If the power LED is on, then the PMIC is on and ramped up. That is why I > asked for the voltages. > > It also could be a boot pin read issue where it misreads the boot pins. If > that is the case you should see that from the serial port. > > Gerald > > > On Wed, Dec 2, 2015 at 4:15 PM, William Hermans <[email protected]> wrote: > >> For what it's worth Gerald, this happens with nothing connected to the >> board as well. This just happened to me last night after issuing a reboot >> command from the command line. >> >> I remember at some point you all were talking about something about the >> "ramp time" of the PMIC or something. >> >> On Wed, Dec 2, 2015 at 3:11 PM, Gerald Coley <[email protected]> >> wrote: >> >>> I would start with your cape design and try and rule that out first. >>> >>> The reset is an input pin read by the processor, not actually a HW power >>> reset. If the SW is locked up, this could happen. >>> >>> If you hold the power button for a 8 seconds or more the board should >>> power cycle. >>> >>> When it is in this state, what do the voltages read? >>> >>> Gerald >>> >>> >>> On Wed, Dec 2, 2015 at 3:54 PM, Jonathan Ross <[email protected]> >>> wrote: >>> >>>> Once in a blue moon one of my beaglebones will get into a state where >>>> it has power (the power LED is lit), but it is not booted. Normally this >>>> would be fine, just hit the power button to reset. But in this weird state >>>> the power button does nothing. The reset button does nothing. >>>> I checked the power and reset button pins on the header, the power was >>>> low, the reset was high. >>>> The only way to get the board out of this state was to pull the 5V >>>> power. >>>> I'm using a KL16 on a cape to do a watchdog on the BB, and reboot it >>>> via power and/or reset buttons on the header if the BB stops sending >>>> checkins over uart. This has been working great, except for the rare case >>>> where the board ends up in this state where the power and reset buttons are >>>> not functioning. >>>> Any ideas how the BB could get into this state, and if there's any >>>> other way to force a reboot other than physically pulling the 5v power? >>>> Thanks, >>>> JR >>>> >>>> -- >>>> 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. >>>> >>> >>> >>> >>> -- >>> Gerald >>> >>> [email protected] >>> http://beagleboard.org/ >>> >>> -- >>> 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. >>> >> >> -- >> 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. >> > > > > -- > Gerald > > [email protected] > http://beagleboard.org/ > > -- > 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. > -- 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.
