Hello bremerpl, GREAT !! you had the correct suggestion. I installed the console version and BBB seems indeed not to shutdown.
I didn't know these different behaviours between the ldxe and console version when a battery backup was installed on the BBB Thank you for your help. Kind regards Michel. 2014-10-17 17:36 GMT+02:00 bremenpl <[email protected]>: > Hello there Michael, > I have just tested my BeagleBone Black. I have connected the power through > USB + battery. Then I disconnected the USB and left the BeagleBone Black on > the battery. It havent shutdown after a minute or anything. I am using the > console Debian image. > > W dniu piątek, 17 października 2014 07:25:54 UTC+2 użytkownik Michel Gerin > napisał: >> >> Hello David, >> >> Yes you are right. If I cannot solve this shutdown problem it's probably >> the only solution. >> >> But it's frustrating when you think that the BeagleBone Black has its own >> battery charger and own UPS that can only run during 60 seconds because of >> this self shutdown problem ! >> Why does it work correctly on a BBB running a VoIP PBX (probably running >> with Ubuntu) and not with a Debian or Angström distribution ? >> I would prefer Debian or Angström built for BeagleBone Black distribution >> not to be able to make a self shutdown and let this possibility to the >> user. >> >> An external backup UPS draws also additional current when running. I >> wanted to keep power consumption as low as possible. Moreover, I don't need >> 5V from the BBB when running under UPS mode. >> >> If a know that a SW solution exists, I won't give up so easily. :-) >> >> Kind regards >> >> Michel. >> >> 2014-10-17 0:13 GMT+02:00 David Funk <[email protected]>: >> >>> Maybe use a battery backup UPS to run your 5 volt power supply to the >>> BBB? >>> >>> >>> >>> -david >>> >>> On Thu, Oct 16, 2014 at 12:49 PM, Michel Gerin <[email protected]> >>> wrote: >>> >>>> Hello Robert, >>>> >>>> Thank you spending your time to help me. >>>> >>>> First of all, sorry if I didn't explain things correctly. I think there >>>> is a misunderstanding (I am French speaking) . >>>> >>>> I don't want BeagleBone to perform a shutdown during power outage. I >>>> want BBB running continuously like my VoIP PBX also based on BeagleBone >>>> Black. But I think, that in this later case, the developper used >>>> Ubuntu (neither Debian nor Angström). As these OS are official BBB OS, I >>>> prefer using them for my application. I am electrician, I don't really want >>>> to spend too much time on SW bugs as I am not skilled for that task. >>>> >>>> One word perhaps about the application: it is very simple. I must >>>> monitor mains power supply in different locations and have to log power >>>> outage events on a file with time stamps. I have also to log grid >>>> switching events ... The specialized 230V AC monitoring system has no >>>> Ethernet connection but can be associated with BBB GPIO's. So that log file >>>> could be downloaded when power outage is over. >>>> >>>> The problem is that, even with battery plugged in, the BeagleBone Black >>>> perform a self shutdown within 60 seconds after mains power off (5V DC >>>> power supply)... >>>> >>>> Hope my explanation is now better. >>>> >>>> Kind regards >>>> >>>> Michel. >>>> >>>> >>>> >>>> 2014-10-16 19:04 GMT+02:00 Robert Nelson <[email protected]>: >>>> >>>>> On Thu, Oct 16, 2014 at 12:00 PM, Michel Gerin <[email protected]> >>>>> wrote: >>>>> > Thank you for your quick reply. >>>>> > >>>>> > you wrote: >>>>> > >>>>> >> >>>>> >> No shutdown is a function of the SW.The SRM covers the hardware. >>>>> > >>>>> > >>>>> > OK, than I suppose that somewhere in the whole Debian package, a >>>>> routine >>>>> > is permanentely checking (polling) if 5V DC power supply is still >>>>> "ON". >>>>> > When it is not the case an event is fired in order to start a clean >>>>> > shutdown procedure? Am I correct ? Does this happen via the I²C bus >>>>> ? Does >>>>> > this routine makes a polling to the TPS65217C PMIC ? >>>>> >>>>> Nope you need to tell it.. >>>>> >>>>> Either via: "sudo halt" or.. setup a pin/interrupt to trigger systemd >>>>> to shutdown the system.. >>>>> >>>>> Regards, >>>>> >>>>> -- >>>>> Robert Nelson >>>>> http://www.rcn-ee.com/ >>>> >>>> >>> >>> -- >>> 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. >>> >> >> -- > 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. > -- 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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