I have a Beagle Bone Green Wireless setup with:
Keyboard connected to USB
3G USB dongle connected to USB port
Powered by micro USB port
The device is supposed to received keystrokes and send it to cloud. The software part is working correctly. But after running for a few days, that device starts
shutting down automatically and does not reboot. If I unplug and replug the device, it boot and works properly for a few minutes and then shutsdown again
On checking the system logs, I realised that the device does a clean shutdown (possibly because of PMIC low power trigger), so I have disabled the power button
Assuming it is a power issue, I have now connected a
5VDC, 2A supply to P9 header, but the same issue is observed.
I have checked the documentation but I am unable to figure out what is the minimum supply needed to keep the device operational when more than one USB peripheral is powered by the device.