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Associate
March 10, 2025
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can I run only M4 core without A7 core, but not in debug mode? in stm32mp157

  • March 10, 2025
  • 2 replies
  • 630 views

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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Best answer by Olivier GALLIEN

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 

 

2 replies

Olivier GALLIEN
Olivier GALLIENBest answer
ST Technical Moderator
March 10, 2025

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 

 

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csmAuthor
Associate
March 10, 2025

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.