Hello,
Why am I getting a Memory Management fault when enabling the MPU for ADC1, even though the MPU region is configured correctly?
Could it be due to alignment issues or internal access within the HAL code (e.g., ADC12_Common)?
Any guidance would be appreciated!
Thanks in advance.
MPU Configuration
/* Update MPU settings for newly activating Zone */
void osZoneSetup_Callback (uint32_t zone) {
ARM_MPU_Disable();
ARM_MPU_Load(mpu_table[zone], MPU_REGIONS);
ARM_MPU_Enable(MPU_CTRL_PRIVDEFENA_Msk);
}MPU Region for ADC
// ADC1, ADC12_Common (0x40022000..0x400227FF)
{ .RBAR = ARM_MPU_RBAR(3U, 0x40022000), .RASR = ARM_MPU_RASR_EX(1U, ARM_MPU_AP_FULL, ARM_MPU_ACCESS_DEVICE(0U), 0x00U, ARM_MPU_REGION_SIZE_16KB) },
// VREFBUF (0x58003C00..0x58003FFF)
{ .RBAR = ARM_MPU_RBAR(4U, 0x58003C00), .RASR = ARM_MPU_RASR_EX(1U, ARM_MPU_AP_FULL, ARM_MPU_ACCESS_DEVICE(0U), 0x00U, ARM_MPU_REGION_SIZE_1KB) },
ADC1 Initialization
static void MX_ADC1_Init(void)
{
/* USER CODE BEGIN ADC1_Init 0 */
/* USER CODE END ADC1_Init 0 */
ADC_MultiModeTypeDef multimode = {0};
ADC_ChannelConfTypeDef sConfig = {0};
/* USER CODE BEGIN ADC1_Init 1 */
/* USER CODE END ADC1_Init 1 */
/** Common config
*/
hadc1.Instance = ADC1;
hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
hadc1.Init.Resolution = ADC_RESOLUTION_8B;
hadc1.Init.ScanConvMode = ADC_SCAN_DISABLE;
hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
hadc1.Init.LowPowerAutoWait = DISABLE;
hadc1.Init.ContinuousConvMode = DISABLE;
hadc1.Init.NbrOfConversion = 1;
hadc1.Init.DiscontinuousConvMode = DISABLE;
hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START;
hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE;
hadc1.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DR;
hadc1.Init.Overrun = ADC_OVR_DATA_PRESERVED;
hadc1.Init.LeftBitShift = ADC_LEFTBITSHIFT_NONE;
hadc1.Init.OversamplingMode = DISABLE;
hadc1.Init.Oversampling.Ratio = 1;
if (HAL_ADC_Init(&hadc1) != HAL_OK)
{
Error_Handler();
}
/** Configure the ADC multi-mode
*/
multimode.Mode = ADC_MODE_INDEPENDENT;
if (HAL_ADCEx_MultiModeConfigChannel(&hadc1, &multimode) != HAL_OK)
{
Error_Handler();
}
/** Configure Regular Channel
*/
sConfig.Channel = ADC_CHANNEL_2;
sConfig.Rank = ADC_REGULAR_RANK_1;
sConfig.SamplingTime = ADC_SAMPLETIME_387CYCLES_5;
sConfig.SingleDiff = ADC_SINGLE_ENDED;
sConfig.OffsetNumber = ADC_OFFSET_NONE;
sConfig.Offset = 0;
sConfig.OffsetSignedSaturation = DISABLE;
if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN ADC1_Init 2 */
/* USER CODE END ADC1_Init 2 */
}Kindly help me.
