A sample for CAF power manager module

[Yanpengwu]

Hi Support team,

Is there a sample for how to use the CAF power manager module?

there are several components of power management(PM) in NCS and Zephyr:
    (1) 'NCS CAF power manager module',
    (2) system power management in Zephyr PM subsystem,
    (3) device power management in Zephyr PM subsystem,
    (4) device runtime power management in Zephyr PM subsystem

To construct a complete power management on the application core of nRF5340, for example, can set the application core to low power mode when no task running, and can power off peripherals freely and as much as possible to save power. etc, which components will be used? and what are the steps to do it?

In our application, we only collect sensor data on the application core, and will not use the short-range radio protocols.

Any guidance or hints are appreciated, thank you very much.

[Vidar Berg]

Hi,

The '__device_dts_ord_126'' error suggests that the QSPI NOR driver is not enabled in your build. I recommend you try the same with the SPI NOR sample in /zephyr/samples/drivers/spi_flash. If you look at the board specific Kconfig fragment in the boards directory, you can see that it sets CONFIG_NORDIC_QSPI_NOR=y.

Best regards,

Vidar

[Yanpengwu]

Hi Vidar,

Yes, you are right, I need to enable the QSPI NOR driver with CONFIG_NORDIC_QSPI_NOR=y first.
I can control the power mode of QSPI NOR Flash successfully now.

Thank you so much.

Best regards,
Yanpeng Wu