RE: Power Management Example Code with Scheduler

Sushi_27 — Thu, 22 Sep 2022 09:08:40 GMT

Okay.

1. I've read the documentation https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/pwr_mgmt_example.html and build it.

I am not able to understand why SysOff handler is blocking (After the configured time of inactivity, the application will switch to System OFF state )

Putty output:

<info> pwr_mgmt: SysOff handler 0x000088ED => blocking

2. As you said " Wakeup from system OFF can only occur from pin wakeup (or NFC) " how should I do it.

As per the nrf52832 datasheet "Analog or digital pin wakeup from System OFF" how should I configure particular pin to wakeup from System OFF.

RE: Power Management Example Code with Scheduler

Kenneth — Thu, 22 Sep 2022 06:54:15 GMT

Hello,

Please read the documentation for usage:
https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/pwr_mgmt_example.html

Wakeup from system OFF can only occur from pin wakeup (or NFC), wakeup from system OFF will always reset the chip.

In normal usage you can instead use the nrf_pwr_mgmt_run() to make the MCU sleep while waiting for an event, in this case MCU will wakeup from system ON idle, and there is no reset.

Kenneth