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csm
Associate
Mar 10, 2025 8:32 AM UTC
Solved

can I run only M4 core without A7 core, but not in debug mode? in stm32mp157

Currently, I'm running the M4 core by loading it through the A7 core.

Is there any way to make these two cores start independently, without interfering with each other, and only perform communication?

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Olivier GALLIEN
Olivier GALLIENBest answer
ST Technical Moderator
Mar 10, 2025 8:42 AM UTC

Hi @csm ,

No, by construction STM32MP15 can operate only with the A7 Core as master. 

M4 cannot start independently out of the Engineering mode limited to developpement purpose. 

Can you elaborate further why you see this as a limitation for your product / use case ?

Thanks 

Olivier 

 

In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
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2 replies

Olivier GALLIEN
Olivier GALLIENBest answer
ST Technical Moderator
Mar 10, 2025 8:42 AM UTC

Hi @csm ,

No, by construction STM32MP15 can operate only with the A7 Core as master. 

M4 cannot start independently out of the Engineering mode limited to developpement purpose. 

Can you elaborate further why you see this as a limitation for your product / use case ?

Thanks 

Olivier 

 

In order to give better visibility on the answered topics, please click on 'Accept as Solution' on the reply which solved your issue or answered your question.
    csmAuthor
    Associate
    Mar 10, 2025 8:54 AM UTC

    In a product that needs to be developed now, it is necessary to ensure the stability of simple functions. I'm worried that after running linux for a long time, some issues will occur, leading to the entire device restarting.

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