I'm completely willing to take responsibility, but would connecting the logic directly to the pins I describe on a 74LS164 overvoltage the header? As far as I can tell, it should just take the High from the pins and drain to the GND on the chip.
On Thursday, December 12, 2013 5:39:27 PM UTC-7, Gerald wrote: > > Sounds like you popped something. RMA is your best option. > http://beagleboard.org/Support/RMA > > Also check > http://www.elinux.org/Beagleboard:BeagleBoneBlack#Expansion_Header_Usageto > make sure you followed the rules for using the expansion headers. > > Gerald > > > > On Thu, Dec 12, 2013 at 6:00 PM, <[email protected] <javascript:>> wrote: > >> I was working on running a shift register, had P8_07 through P8_10 hooked >> up to the DATA, LATCH, CLEAR, and CLOCK ports of a 74LS164, then a couple >> of the outputs over to a ULN2803 to run LEDs. I'm not sure when it died, >> it had lights on when I moved over to the Cloud9 browser, then when I >> couldn't get a response from Cloud9 after some coding, it was black. >> >> I've been using a 5V bench supply but I've tried it with the USB plug, >> and a wall wart running 5V. All I get is a quick flash on the power LED >> and then blank. If I hit the Power button, the LED flashes for a split >> second again, then blank. I've taken out the SD card, removed the wireless >> mouse dongle, nothing. Hold down the power or boot buttons and plug in, >> nothing. >> n >> I can't see any burned components, nor do I smell anything burned on the >> board. Is it done for, and did I do it, given that fairly innocuous >> circuit? >> >> -- >> 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] <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > -- 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]. For more options, visit https://groups.google.com/groups/opt_out.
