Hi, apparently I must have somehow damaged my Beagle Bone Black Rev C. At the time the device was damaged, only GND, VDD_3V3B, VDD_5V and Ethernet were connected, so I am sure it was not overvoltage at one of the GPIO/AIN pins (got my experiences with that already). The current state of the device is that the power LED turns and stays on when connected via VDD_5V, but the device does not boot or turn on the VDD_3V3B rail. When connected to a USB power supply, the power LED flashes only once. My power supply providing the 5V DC is based on the TPS5430/31EVM-173 3A Regulator Evaluation Module BY Texas Instruments, which has worked nicely so far.
There is some (currently unused) circuitry connected to VDD_3V3B. Any ideas what could have caused the damage? I had stumbled over the problem with unreliable start ups with long VDD_5V rise times previously (although I have not seen it for some time), but I was under the impression that this was a non-permanent issue that could be resolved by repowering the board. Is there something that might permanently damage the BBB when simply powering up and down? Thank you in advance, regards, Matthias -- 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.
