With everything disconnected, and a simple USB cable for power acts the same, points in the direction of an over current shutdown due to shorted IO on the BBB CPU.
If you can RMA it and get another, I would try that. You need to examine your application and make sure that all I/O pins are operated within Voltage and current limits, and the inductive "kick" from your stepper motor is not getting back, somehow, into the BBB I/O. --- Graham == -- 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. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/3e9c1661-22b7-43bd-ba74-8206297b59a8%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
