Is it possible to reset the CM4 from the CM7 on the STM32H747?

[Embedded123]

Or at least make software reset work on only one core?

Thanks

[Imen.D]

Hello @Embedded123​ 

Welcome to the STM32 Community =)

It is possible to disable BOOT_CM4 option bit (see "FLASH option bytes" section in the reference manual RM0399)

You can use STM32CubeProgrammer to disable the CM4 in the option bytes.

Imen

[Embedded123]

Hi Imen,

Thank you for your answer.

If I understand well, you are proposing a way to disable the CM4 from booting after a reset/power up?

I have code running on both cores. I'm trying to find a way to reset one from the other. Is there a way to do that?

Thank you!