Does Nordic provide sample code for power management on ncs v2.4.2?

[snowuyl]

Zephyr provide power management document related (docs.zephyrproject.org/.../index.html). But I didn't find any sample code related to power management. Does Nordic provide sample code for power management?

[Vidar Berg]

Power management is automatically handled by the hardware on our chips. Therefore, the support for PM on Nordic ICs was removed in SDK v2.5.0: https://github.com/nrfconnect/sdk-zephyr/commit/96b38273138f05dd06cf7a58fa361f401e773e5e. 

Please see 'Power optimization' for more information.

[snowuyl]

Thanks for your reply! I am using ncs v2.4.2 now. Do you suggest to upgrade to ncs v2.5.2 for testing power management on nRF5340 DK?

[Vidar Berg]

The PM wasn't needed for the nRF53 in v2.4.2 either. Are you experiencing problems with high power consumption?

[snowuyl]

Thanks for your reply! I didn’t see any power management related log messages . Could you kindly to let me know how to enable power management related log messages since I need to reduce power consumption of external devices (e.g. NOR flash, ADC, …, etc.)?

[Vidar Berg]

Device power management is covered by the Power optimization section of the SDK documentation.