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.
