STM32MP1 - Low power modes - Exit standby on CM4

[KSchu.4]

Hi all,

I'm runnig the example 'OpenAMP_TTY_echo_wakeup' on a STM32MP157C-DK2. My question is regarding the Option 5) in the readme.

Here we put the system into standby and wake the CA7 up then. Afterwards there is no FW running no the CM4.

My Question: Is it also possible to exit the standby mode from the CM4 while the CA7 is still in standby? I mean in a way that the CM4 FW is still there and running?

Thanks

Klaas

[Olivier GALLIEN]

Hi @Community member​ 

No this use case is not possible.

Please look last chapter of https://wiki.st.com/stm32mpu/wiki/How_to_define_your_low-power_strategy

Olivier