STM32MP257 M33 with Freertos & OpenAmp

[Hs26]

Hi everyone,

I am working on the STM32MP257-EVAL board, where my Cortex-M33 application requires both FreeRTOS and OpenAMP middleware to run together.

After referring to the STM32CubeMPU packages, I found separate example projects:

• One for FreeRTOS

• One for OpenAMP (running in bare-metal environment)

I tried combining both examples into a single application. The FreeRTOS part is working correctly, but OpenAMP hangs during initialization.

After debugging, I noticed that libmetal is getting compiled for the generic platform instead of the FreeRTOS platform. To address this, I changed the toolchain configuration from:

-DCMAKE_TOOLCHAIN_FILE=cmake/platforms/stm32mp-generic-gcc.cmake

to:

-DCMAKE_TOOLCHAIN_FILE=cmake/platforms/stm32mp-freertos-gcc.cmake

However, this results in multiple compilation errors. It seems the provided libmetal port may not be fully compatible with the FreeRTOS platform setup.

Has anyone successfully integrated FreeRTOS + OpenAMP together on STM32MP257 (M33 core)?
Are there any reference projects, application notes, or examples available for this combined use case?

Any guidance would be greatly appreciated.

Thanks.

[Hs26]

if anybody facing a same problem, they can use this example  

STM32CubeMP2/Projects/STM32MP257F-EV1/Applications/USBPD/USBPD_DRP_UCSI at main · STMicroelectronics/STM32CubeMP2 · GitHub

 

apparently, it contains Openamp (libmetal) package in RTOS flavour. 

[S_KUMAR]

Hi ​@Hs26 ,

Were you able to debug the Cortex-M33 core independently?

If yes, could you please share the steps or procedure you followed to debug the M33 in bare-metal/standalone mode, without booting the Cortex-A35/Linux?

Your guidance would be greatly appreciated.

Thank you!

[S_KUMAR]

Hi ​@Hs26 ,

Were you able to debug the Cortex-M33 core independently?

If yes, could you please share the steps or procedure you followed to debug the M33 in bare-metal/standalone mode, without booting the Cortex-A35/Linux?
When I try to debug the Cortex-M33 independently, I get the error shown in the attached screenshot.

Your guidance would be greatly appreciated.

Thank you!