Some further information. I have been unable to get your latest Stretch 9.3 IoT image to fail and autonomously reboot, when powered by Vin (P1-pin1) ie.: " bone-debian-9.3-iot-armhf-2017-12-10-4gb.img"
I am starting an extended test today, and letting two PBs run for the rest of the week, on this version. Same power supply, no added bulk capacitance on Vin. Your recommended PB release version 2017-10-10 definitely does randomly reboot when Vin powered, as do all the Stretch 9.2 weeklies up to Dec 03. that is, bone-debian-9.2-iot-armhf-2017-10-10-4gb.img through bone-debian-9.2-iot-armhf-2017-12-03-4gb.img As far as your questions about my bench power supply, noise/ripple on the supply is at floor of scope's ability to measure, ie, < 12 mV. Regulation of bench supply, less than 10 mV droop from 0.0A to 1.0A Voltage set at 5.00 Volts, current limiter set at 5A, so out of the circuit. Adding or deleting bulk capacitance (100 uF tantalum) at P1-pin makes no difference in the behavior. I am convinced that this is not a supply side power problem, and is some kind of software issue, hopefully already resolved in Stretch 9.3. --- 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 [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/af9342e4-e9f6-4c99-af1d-f556b9198fa9%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
