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 <ger...@beagleboard.org> 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 <jonr...@nephology.org> > 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 beagleboard+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/d/optout. >> > > > > -- > Gerald > > ger...@beagleboard.org > 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 beagleboard+unsubscr...@googlegroups.com. > 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
