Do you have idea why macro portSWITCH_TO_USER_MODE() is not defined for freertos ?
I have searched "portSWITCH_TO_USER_MODE() " as a key words in google, the api function is related to MPU(memory protection unit), which can limit the resource scope a task can access. I think the freeRtos example does not use the function.
Hi XiangJun Rong !
This macro must to be implemented as part of freertos port for LPC55.
But it missing.
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