PM_POLICY_CUSTOM ON STM32U575

[zafersn]

I plan to configure a power management system for the STM32U575 MCU that will put it into sleep mode after completing all network processes (which take approximately 10 minutes). The MCU should then wake up once every 24 hours to repeat this cycle. I am still determining the best sleep mode for this purpose.

While reviewing STM board power management samples, I noticed that most use k_msleep to enter low power modes. I aimed to customize a blinking app by adding user input via UART using CONFIG_CONSOLE_SUBSYS and char *s = console_getline();. However, the MCU goes into sleep mode whenever it hits the console_getline code, which is not the desired behavior.

I've consulted the power management documentation (Zephyr PM Documentation) and examined the sample code (Zephyr Power Management Sample), but I haven't had success defining application-specific power management policies. Are there any specific guidelines for power management with STM32U5-based MCUs?

Zephyr- v3.6.0-90-g4769dbb650c8

[zafersn]

Can anyone shed some light on this topic?