STM32MP153 MCU wakeup MPU via IPCC interrupt

[atessadri]

Hi all,

   I work on a STM32MP153 device and I used the command echo mem > /sys/power/state to put CPU A7 in Cstop mode, but I still have MCU running.

I am wondering if a message via IPCC from MCU to MPU (that is stopped at WFI) can wakeup the A7 CPU.

I tried but it seams not working, so I would like to understand if it is feasible (in the AN5109 low-power application note I don't find IPCC as a wakeup source)

Looking forward

  Andrea