I haven't tried halt command but have tried shutdown -h -P now, I assume these are the same.
I am able to shut the board down but the LCD4 Cape that I am using (from CircuitCo) stills lit which is besides the power drain is not desired as a device that is shutdown should be shut down as far the as end user is concerned - now it just looks broken. I suspect that shutdown is not 'OFF' and am hoping that using settings described will work - I was actually hoping for a quick proof of concept to check as I am not sure that this will work - I suspect it will as this is what I understand pushing the power down button essentially does - sadly in my case, the power button is not exposed to end user. On Monday, June 23, 2014 4:30:16 PM UTC-5, RobertCNelson wrote: > > On Mon, Jun 23, 2014 at 4:24 PM, Colin Bester <[email protected] > <javascript:>> wrote: > > I am looking to fully power down a battery backed beaglebone black > running > > debian distro. > > > > Looking through the TRM and TPS65217 document it appears that I can > power > > device OFF (as opposed to SLEEP) by setting bit 7 in TPS65217 Status > > register and then causing PWE_EN pin to go low. > > > > Only way (under software control) that I can see to do this is via > setting > > ALARM2 in RTC registers and setting POWER_ENABLE_EN bit (also referred > to in > > thread > > > https://groups.google.com/forum/#!searchin/beagleboard/PMIC_POWER_EN/beagleboard/K7DuusrJ6G4/ln4so6f0Vj4J) > > > > > > Makes sense, i2c control of TPS65217 is easy but I don't see how to > write to > > RTC registers from user space. > > > > I'd appreciate any pointers - is it possible using device tree overlay, > as I > > see promising looking end points in > /sys/devices/ocp.3/44e3e000.rtc/power > > Any reason you just can't call "sudo halt"? As that will shutdown the > board completely including having the pmic shut things down. > > 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.
