OpenAMP and FreeRTOS on STM32MP1

[SMang.1]

I am facing a freeze on M4 and A7 core when enabling FreeRTOS with OpenAMP_TTY_echo example.

Can someone please point out if OpenAMP and FreeRTOS can be run together or not?

[SMang.1]

Still waiting for some response, here.

[JSpra]

I'm having same problem.

Noticed that there are no examples with this combination.

Is OpenAmp thread safe?

More info here

https://github.com/OpenAMP/open-amp/issues/217

[ArnaudP]

Hello,

Have you tested this exemple: https://github.com/STMicroelectronics/STM32CubeMP1/tree/master/Projects/STM32MP157C-DK2/Applications/OpenAMP/OpenAMP_FreeRTOS_echo?

Note that the use of OpenAMP and freeRTOS has limitations:

• As mentioned in issue 101, there is a thread rescheduling issue that can lead to a freeze. To avoid this you have to handle the RPMsg send an receive in the same thread ( to avoid double mutex lock).
• The libmetal library of the ST distribution has been configured for the baremetal ( no OS). It therefore does not take advantage of FreeRTOS routines.