cancel
Showing results for 
Search instead for 
Did you mean: 

Question about the MPU configuration in the CubeH7 examples

CiuppaPT
Associate III

Thread split from this one.

In all examples found on the ST rapository concerning the MPU_config in addition to the background configuration to prevent that speculative access issue, there is also the following initialisation. Could you tell me what this concerns and whether it is essential since it is present in almost all MPU_configs of the various platforms?

/* Configure the MPU attributes FMC control registers */
  MPU_InitStruct.Enable = MPU_REGION_ENABLE;
  MPU_InitStruct.Number = MPU_REGION_NUMBER7;
  MPU_InitStruct.BaseAddress = 0xA0000000;
  MPU_InitStruct.Size = MPU_REGION_SIZE_8KB;
  MPU_InitStruct.AccessPermission = MPU_REGION_FULL_ACCESS;
  MPU_InitStruct.IsBufferable = MPU_ACCESS_BUFFERABLE;
  MPU_InitStruct.IsCacheable = MPU_ACCESS_NOT_CACHEABLE;
  MPU_InitStruct.IsShareable = MPU_ACCESS_SHAREABLE;
  MPU_InitStruct.TypeExtField = MPU_TEX_LEVEL0;
  MPU_InitStruct.SubRegionDisable = 0x0;
  MPU_InitStruct.DisableExec = MPU_INSTRUCTION_ACCESS_DISABLE;

  HAL_MPU_ConfigRegion(&MPU_InitStruct);

example from the  

0 REPLIES 0