BBB not booting after shutdown

GoogleGroups
1

I have a BBB that will not reliably boot after shutdown -h now is issued. In order to minimize power consumption between periodic events the unit is shutdown and then restarted by an external clock that momentarily pulls down the power button. Approximately 1/20 times the unit will turn the power LED on boot never start the boot process where the LEDS are flashing. The unit will not respond to either Power or reset buttons in this mode.

In this case, the power supply is always on

Thank you for you assistance,
Jon
.

2

How long is this pulse you are using to power off the board?

Gerald

3

The board is powered off using the shutdown -h now command. It gets woken up by pulling down the power button line for 250 mS.

Jon

4

OK. That should be fine.

Gerald