If the software is locked up, the USR LEDs would not cycle as if the system is attempting to restart.
On Wed, Dec 2, 2015 at 4:08 PM, John Syne <john3...@gmail.com> wrote: > From what Gerald said previously in this thread: > > "The reset is an input pin read by the processor, not actually a HW power > reset. If the SW is locked up, this could happen.” > > Regards, > John > > > > > On Dec 2, 2015, at 2:55 PM, William Hermans <yyrk...@gmail.com> wrote: > > If the board was in sleep, then why wont the reset button reset ? Passed > that, why would the USR cycle( flash on then off ) then nothing ? > > On Wed, Dec 2, 2015 at 3:47 PM, John Syne <john3...@gmail.com> wrote: > >> Sounds to me that like BBB has gone into sleep mode and there is no >> trigger to wake it up. Is there a way to measure the current consumption? >> >> Regards, >> John >> >> >> >> >> On Dec 2, 2015, at 2:40 PM, William Hermans <yyrk...@gmail.com> wrote: >> >> One more thing of note. I do not run systemd - Ever. I run SYSV as an >> init daemon. I only mention this as I think Robert said something about >> systemd lessening this issue. >> >> On Wed, Dec 2, 2015 at 3:36 PM, Gerald Coley <ger...@beagleboard.org> >> wrote: >> >>> Hmm, not sure what is going on. Sounds like the processor has stopped >>> running the code and halted but it forgot to turn off the lights. >>> >>> Gerald >>> >>> On Wed, Dec 2, 2015 at 4:26 PM, William Hermans <yyrk...@gmail.com> >>> wrote: >>> >>>> Gerald, it's like the board hangs at power down, but I can not be 100% >>>> sure. The reason why I "assume" it's at power down, is that the heartbeat >>>> blink stops, but the rest of the LEDs stay on, and the ethernet port light >>>> still blinks. >>>> >>>> The board I experienced this on last night is an Element14 RevC, but I >>>> do also have a circuitco A5A that exhibits the same thing. >>>> >>>> On Wed, Dec 2, 2015 at 3:22 PM, Gerald Coley <ger...@beagleboard.org> >>>> wrote: >>>> >>>>> Is this on power up or is this state happening some time later? If it >>>>> is on power up, then the power supply most likely is the issue based on >>>>> the >>>>> ramp requirements of the PMIC. >>>>> >>>>> If the power LED is on, then the PMIC is on and ramped up. That is why >>>>> I asked for the voltages. >>>>> >>>>> It also could be a boot pin read issue where it misreads the boot >>>>> pins. If that is the case you should see that from the serial port. >>>>> >>>>> Gerald >>>>> >>>>> >>>>> On Wed, Dec 2, 2015 at 4:15 PM, William Hermans <yyrk...@gmail.com> >>>>> wrote: >>>>> >>>>>> For what it's worth Gerald, this happens with nothing connected to >>>>>> the board as well. This just happened to me last night after issuing a >>>>>> reboot command from the command line. >>>>>> >>>>>> I remember at some point you all were talking about something about >>>>>> the "ramp time" of the PMIC or something. >>>>>> >>>>>> On Wed, Dec 2, 2015 at 3:11 PM, Gerald Coley <ger...@beagleboard.org> >>>>>> wrote: >>>>>> >>>>>>> I would start with your cape design and try and rule that out first. >>>>>>> >>>>>>> The reset is an input pin read by the processor, not actually a HW >>>>>>> power reset. If the SW is locked up, this could happen. >>>>>>> >>>>>>> If you hold the power button for a 8 seconds or more the board >>>>>>> should power cycle. >>>>>>> >>>>>>> When it is in this state, what do the voltages read? >>>>>>> >>>>>>> Gerald >>>>>>> >>>>>>> >>>>>>> On Wed, Dec 2, 2015 at 3:54 PM, Jonathan Ross <jonr...@nephology.org >>>>>>> > wrote: >>>>>>> >>>>>>>> Once in a blue moon one of my beaglebones will get into a state >>>>>>>> where it has power (the power LED is lit), but it is not booted. >>>>>>>> Normally >>>>>>>> this would be fine, just hit the power button to reset. But in this >>>>>>>> weird >>>>>>>> state the power button does nothing. The reset button does nothing. >>>>>>>> I checked the power and reset button pins on the header, the power >>>>>>>> was low, the reset was high. >>>>>>>> The only way to get the board out of this state was to pull the 5V >>>>>>>> power. >>>>>>>> I'm using a KL16 on a cape to do a watchdog on the BB, and reboot >>>>>>>> it via power and/or reset buttons on the header if the BB stops sending >>>>>>>> checkins over uart. This has been working great, except for the rare >>>>>>>> case >>>>>>>> where the board ends up in this state where the power and reset >>>>>>>> buttons are >>>>>>>> not functioning. >>>>>>>> Any ideas how the BB could get into this state, and if there's any >>>>>>>> other way to force a reboot other than physically pulling the 5v power? >>>>>>>> Thanks, >>>>>>>> JR >>>>>>>> >>>>>>>> -- >>>>>>>> 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. >>>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> Gerald >>>>>>> >>>>>>> ger...@beagleboard.org >>>>>>> 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 beagleboard+unsubscr...@googlegroups.com. >>>>>>> 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. >>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Gerald >>>>> >>>>> ger...@beagleboard.org >>>>> 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 beagleboard+unsubscr...@googlegroups.com. >>>>> 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. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> >>> >>> -- >>> Gerald >>> >>> ger...@beagleboard.org >>> 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 beagleboard+unsubscr...@googlegroups.com. >>> 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. >> 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. >> 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. > 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. > 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. 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