system_off sample using GRTC - Zephyr 4.0.99

[zagros]

Hi,

I am trying the system_off sample of Zephyr version 4.0.99:
https://docs.zephyrproject.org/latest/samples/boards/nordic/system_off/README.html

The sample works as is. But, as the sample instructions state (Kconfig), CONFIG_GRTC_WAKEUP_ENABLE must be set to enable wake-up by GRTC. When I set it to y in prj.conf, the build runs to the following error:

undefined reference to `z_nrf_grtc_wakeup_prepare'

 

I am using nrf5284dk for the test.

Generally, I need to put the device in deep sleep (low power state) and wake up at a certain interval. 

Thanks!

Amin

[runsiv]

Hi

The nRF52840 do not have a GRTC, only the nRF54 familys got this feature

Regards

Runar