sd_power_system_off returns immediately and forces reset

[Richard von Lehe]

I hope this isn't a duplicate of another question. I searched on sd_power_system_off and didn't see anything exactly like this.

I'm creating a new project, based on ble_app_template from SDK 11.0.0 . So far, all I've done is tested to make sure my combination of services advertises correctly. It does, but I noticed via debug output that the application restarts regularly and I tracked it to the sleep_mode_enter call (due to advertising timeout) and sd_power_system_off. The latter call is made and immediately exits with error NRF_ERROR_SOC_POWER_OFF_SHOULD_NOT_RETURN.

What might cause this?

I'm attaching my main.c. main.c

ble_whts.c ble_whts.h

[Richard von Lehe]

I am running with a PCA10036 board (IAR compiler). I also just confirmed that this happens with the bare 'ble_app_template' demo.

[Anders Strand]

Hi.

The chip cannot be put in system_off when in Debug mode. It will most likely work when you run it without the debugger, but you should confirm this with a test.

-Anders

UPDATE 2016.10.14:

The chip will be put in emulated system off mode if in debug interface mode and calling sd_power_system_off(). This will lead to the CPU executing code after the call. Therefore it is recommended to add an infinite loop after going system off. See this and this post.

[Richard von Lehe]

Confirmed! Thank you

[sam]

Hi,

How do I know if I'm in debug mode or not?

Thanks,