MPU dynamic settings lost

Kernel
1

tamirmichael wrote on Tuesday, August 28, 2012:

Hello,

I have noticed that if a task configures the MPU settings, once the context is lost to another task and then given back, the dynamic settings are no longer applicable but the ones FreeRTOS found in the initial settings provided during the task’s creation. Is there a way to tackle this other than to update the initial settings at runtime?

Thanks in advance

2

tamirmichael wrote on Tuesday, August 28, 2012:

I see the function “vPortStoreTaskMPUSettings”…

3

tamirmichael wrote on Tuesday, August 28, 2012:

But the data structure of the Kernel are privileged - so obviously I cannot alter then…!

4

rtel wrote on Tuesday, August 28, 2012:

The MPU regions used by a task are stored in, and restored from, the task’s TCB.  MPU regions used by a task are changed using http://www.freertos.org/vTaskAllocateMPURegions.html

Regards.

5

tamirmichael wrote on Tuesday, August 28, 2012:

Thank you.