Hello,
I would like to know if there is a possibility to readback the MPU confiugration for each configured region? HAL only provides a setter function.
If I take a look into the internal implementation, it seems that regions get overwritten, when I configure I new region.
I was expecting to see an OR operation but instead the region number is directly updated.
void HAL_MPU_ConfigRegion(MPU_Region_InitTypeDef *MPU_Init)
{
/* Set the Region number */
MPU->RNR = MPU_Init->Number;
if ((MPU_Init->Enable) != 0UL)
{
MPU->RBAR = MPU_Init->BaseAddress;
MPU->RASR = ((uint32_t)MPU_Init->DisableExec << MPU_RASR_XN_Pos) |
((uint32_t)MPU_Init->AccessPermission << MPU_RASR_AP_Pos) |
((uint32_t)MPU_Init->TypeExtField << MPU_RASR_TEX_Pos) |
((uint32_t)MPU_Init->IsShareable << MPU_RASR_S_Pos) |
((uint32_t)MPU_Init->IsCacheable << MPU_RASR_C_Pos) |
((uint32_t)MPU_Init->IsBufferable << MPU_RASR_B_Pos) |
((uint32_t)MPU_Init->SubRegionDisable << MPU_RASR_SRD_Pos) |
((uint32_t)MPU_Init->Size << MPU_RASR_SIZE_Pos) |
((uint32_t)MPU_Init->Enable << MPU_RASR_ENABLE_Pos);
}
else
{
MPU->RBAR = 0x00;
MPU->RASR = 0x00;
}
}
Is there a way to simply read out the complete MPU confiugration for all regions with its specific confiugration ?
