Hi,

This seems to match what I am experiencing.  Did you compile the kernel
yourself or use a distribution?  If you compiled it, did you find a good
tutorial?  I found one for older kernels but nothing for new stuff.

Thanks for the reply, especially since this was an older post I had written
off for dead.

On Wed, May 2, 2018 at 7:06 AM, Lloyd Bailey <[email protected]> wrote:

> Hi Evan,
>
> I have a weather station project using a Beaglebone Black board to send
> data from a Davis Weather station console via an old Nokia phone. All Solar
> powered.
>
> To save battery power the board runs every minute, sleeps every 5 minutes
> (during the day) and 15 minutes (at night).
>
> The Kernel I use: Linux arm 4.9.67-ti-r82 #1 SMP PREEMPT Fri Dec 8
> 02:39:42 UTC 2017 armv7l GNU/Linux
>
> The command to sleep: rtcwake -m standby -s 3600
> This wakes up after 5 minutes or if I insert or remove the USB to serial
> TTL cable.
>
> One of the biggest problems I have had is finding a pre-build Linux
> version that supports standby and USB numeration from standby.
>
> Maybe this kernel will help.
>
> All the best,
>
> Lloyd.
>
>
>
>
>
> On Friday, 23 March 2018 18:32:58 UTC, Evan Griffith wrote:
>>
>>
>> Hi,
>>
>> I am trying to get some clarity on the capabilities of the RTC on the
>> BBBW.  Based on what I can see there is a nonbattery support powered RTC on
>> the chip.  However in poking around online I hav ebeen unable to issue a
>> command that allows me to put the BBBW into a lower power state and then
>> wake up using the RTC.  For context what I am hoping to do is sleep for
>> 10-20 minutes wakeup do something and then go back to sleep so that I can
>> minimize power usage in a battery powered application.  Also I am running
>> the latest Debian stock OS with kernel 4.9.59-ti-rt-r74.
>>
>> thanks in advance for any help and let me know what info I should have
>> provided to get better help.
>>
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