C++ (Cpp) IS_MPU_REGION_PERMISSION_ATTRIBUTE Examples

Example #1

File: stm32l0xx_hal_cortex.c Project: heyuanjie87/rt-thread

/**
  * @brief  Initialize and configure the Region and the memory to be protected.
  * @param  MPU_Init: Pointer to a MPU_Region_InitTypeDef structure that contains
  *                the initialization and configuration information.
  * @retval None
  */
void HAL_MPU_ConfigRegion(MPU_Region_InitTypeDef *MPU_Init)
{
  /* Check the parameters */
  assert_param(IS_MPU_REGION_NUMBER(MPU_Init->Number));
  assert_param(IS_MPU_REGION_ENABLE(MPU_Init->Enable));

  /* Set the Region number */
  MPU->RNR = MPU_Init->Number;

  if ((MPU_Init->Enable) == MPU_REGION_ENABLE)
  {
    /* Check the parameters */
    assert_param(IS_MPU_INSTRUCTION_ACCESS(MPU_Init->DisableExec));
    assert_param(IS_MPU_REGION_PERMISSION_ATTRIBUTE(MPU_Init->AccessPermission));
    assert_param(IS_MPU_ACCESS_SHAREABLE(MPU_Init->IsShareable));
    assert_param(IS_MPU_ACCESS_CACHEABLE(MPU_Init->IsCacheable));
    assert_param(IS_MPU_ACCESS_BUFFERABLE(MPU_Init->IsBufferable));
    assert_param(IS_MPU_SUB_REGION_DISABLE(MPU_Init->SubRegionDisable));
    assert_param(IS_MPU_REGION_SIZE(MPU_Init->Size));

    /* Set the base adsress and set the 4 LSB to 0 */
    MPU->RBAR = (MPU_Init->BaseAddress) & 0xfffffff0U;

    /* Fill the field RASR */
    MPU->RASR = ((uint32_t)MPU_Init->DisableExec        << MPU_RASR_XN_Pos)   |
                ((uint32_t)MPU_Init->AccessPermission   << MPU_RASR_AP_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 = 0x00U;
    MPU->RASR = 0x00U;
  }
}

Example #2

File: stm32f4xx_hal_cortex.c Project: CSRedRat/MobilECG-II

/**
  * @brief  Initializes and configures the Region and the memory to be protected.
  * @param  MPU_Init: Pointer to a MPU_Region_InitTypeDef structure that contains
  *                the initialization and configuration information.
  * @retval None
  */
void HAL_MPU_ConfigRegion(MPU_Region_InitTypeDef *MPU_Init)
{
  /* Check the parameters */
  assert_param(IS_MPU_REGION_NUMBER(MPU_Init->Number));
  assert_param(IS_MPU_REGION_ENABLE(MPU_Init->Enable));

  /* Set the Region number */
  MPU->RNR = MPU_Init->Number;

  if ((MPU_Init->Enable) != RESET)
  {
    /* Check the parameters */
    assert_param(IS_MPU_INSTRUCTION_ACCESS(MPU_Init->DisableExec));
    assert_param(IS_MPU_REGION_PERMISSION_ATTRIBUTE(MPU_Init->AccessPermission));
    assert_param(IS_MPU_TEX_LEVEL(MPU_Init->TypeExtField));
    assert_param(IS_MPU_ACCESS_SHAREABLE(MPU_Init->IsShareable));
    assert_param(IS_MPU_ACCESS_CACHEABLE(MPU_Init->IsCacheable));
    assert_param(IS_MPU_ACCESS_BUFFERABLE(MPU_Init->IsBufferable));
    assert_param(IS_MPU_SUB_REGION_DISABLE(MPU_Init->SubRegionDisable));
    assert_param(IS_MPU_REGION_SIZE(MPU_Init->Size));
    
    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;
  }
}