How to communicate two cores with interrupt (openamp) in stm32h745? please provide any example code.

[Imen.D]

Hello @Navaneeth kumar​ and welcome to the Community :)

I advise you to refer to the working OpenAMP application available under STM32CubeH7 MCU package: \STM32Cube_FW_H7_V1.9.0\Projects\STM32H745I-DISCO\Applications\OpenAMP

This application shows how to use OpenAMP MW to create a communication channel (called rpmsg channel) between cores and send mutual messages in the two directions.

You find with the example a readme file describing how to test the examples, and you may update the application according to your needs.

You find also in the ST web page the X-CUBE-H7DC-APP OpenAMP application software expansion for STM32Cube.

This FAQ responds to the inquiry related to the dual core communication on STM32H7, CM4 & CM7: STM32H7 Dual-Core: How to communicate between CM4 & CM7

Hope this helps you!

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Imen

[Navaneeth kumar]

This code I have copied from \STM32Cube_FW_H7_V1.9.0\Projects\STM32H745I-DISCO\Applications\OpenAMP and pasted in both cores ,But I am not getting any response from cm4.

Please tell me if there is any changes to be done in code for getting proper output.