Thank you Gerald, Sorry I meant that we are using the VDD_5V pins to power the unit and not the SYS_5V. Fat fingers there!
With that in mind any sort of debugging we can do to tell if it is software our hardware? Lee On Monday, November 23, 2015 at 5:39:29 PM UTC, Gerald wrote: > > I would not power the board using the SYS_5V pins. That is the output of > the PMIC. Not sure what issues that would cause. It also sounds like that > the boot pins maybe are being affected in some way that prevents the boot > cycle after a power failure or removal. > > > Gerald > > On Mon, Nov 23, 2015 at 11:35 AM, Lee Armstrong <[email protected] > <javascript:>> wrote: > >> Anyone got any ideas, this is happening on a few units and nothing is >> logged at all. >> >> Need to narrow down if it is software or hardware issue, from the Debian >> side of things it just looks like the power was removed from the unit >> however the NIC lights are still on and also the PWR light on the BBB. The >> BBB is powered via the SYS_5V pins. >> >> >> >> On Friday, November 20, 2015 at 11:48:12 AM UTC, Lee Armstrong wrote: >>> >>> Also further to that the USR LEDs are all extinguished but the LED's on >>> the NIC are ok and the power LED is still lit. >>> >>> >>> >>> On Friday, November 20, 2015 at 11:36:03 AM UTC, Lee Armstrong wrote: >>>> >>>> Hello, >>>> >>>> I have a very strange issue that I cannot seem to work out and get more >>>> info for! >>>> >>>> We have a BBB Rev C that is powered via the 5V header pins. It also >>>> uses UART2 heavily (3MBps) and this is configured using the built in >>>> BB-UART2 device tree overlay. >>>> >>>> The board is running... >>>> >>>> BeagleBoard.org Debian Image 2015-10-04 >>>> >>>> 4.1.13-ti-r31 >>>> >>>> >>>> What seems to happen is that the board drops off the network and also >>>> the serial debug cable I have attached becomes unresponsive. Nothing had >>>> been logged in the console at all on the serial cable and when it boots >>>> back up there is nothing in any of the previous syslogs at all to give >>>> even >>>> the hint of anything happening. >>>> >>>> >>>> What is even more puzzling is that the network LED's continue to flash! >>>> >>>> >>>> To get this back I have to pull power and it then unsurprisingly works >>>> ok after that. >>>> >>>> >>>> I'm trying to get to the bottom of this but if nothing is logged I >>>> don't know where to go next! >>>> >>>> >>>> Any ideas at all anyone? >>>> >>> -- >> 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/d/optout. >> > > > > -- > Gerald > > [email protected] <javascript:> > http://beagleboard.org/ > -- 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/d/optout.
