Is anything coming out from the uart console?
El jue., 13 sept. 2018 a las 10:59, witop01 via BeagleBoard (< beagleboard@googlegroups.com>) escribió: > > > 在 2015年3月6日星期五 UTC+8下午2:41:17，gr...@sensa.io写道： >> >> I wired up a circuit with an LED strip, 3 N-channel MOSFETs, and a >> separate 12V power supply, with the gate pins on the MOSFETS connected to >> I/O pins on the Beaglebone. >> >> When I didn't connect the circuit to the Bone ground, I apparently fried >> 2 boards. Neither will boot up. One gives a flicker on the power light and >> then goes off, and on the other the power light turns on, but the other >> LEDs don't flash and I can't get into either board. >> >> Here is the thread on the Adafruit forum with a photo of the circuit: >> http://forums.adafruit.com/viewtopic.php?f=8&t=69691&p=353330&sid=eff0f5bd69bba9338e6f0ec2d7fa70c4#p353330 >> *The Adafruit support said that setup should not have hurt the board. * >> >> I checked the voltage on the gate pin on each MOSFET that was connected >> to the Bone and it was nominal (~200mA). >> >> Does anyone have any ideas on this? How could this have fried 2 boards? >> >> Thanks for any help. >> >> And PS I posted this earlier today but didn't see it show up in the >> forum. Sorry if it needed to be approved and you are getting a duplicate. >> > -- > 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/c61f663c-e5c9-4a93-b5cf-dc8eb6974fea%40googlegroups.com > <https://groups.google.com/d/msgid/beagleboard/c61f663c-e5c9-4a93-b5cf-dc8eb6974fea%40googlegroups.com?utm_medium=email&utm_source=footer> > . > For more options, visit https://groups.google.com/d/optout. > -- 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/CAEObdD3Si5NQZzYB8%2BokwFCmZMUdAS2KfeX7Q384GAxTHh_yRg%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
