ADC1 and ADC4 readings at the same time

Marc3 · ‎2025-02-27

Hello,

I have been trying for some days to read the values incoming form both ADCs, ADC1 & ADC4, from the NUCLEO U545-REQ.

The overall idea is to trigger both ADCs at the same time in output compare mode but if i try to trigger both of them at the same time in the live expression the read values are 0. I have tried to trigger the ADC4 in this mode and it works as expected.

I do not know the error i have. Find attached the configurations of the peripherals and the code:

I have the ADC4 configured as follows:

- Channels 3, 4, 9, 10, 11 in single ended mode

- Scan conversion mode is enabled

- DMA continuous request mode is enabled.

- External trigger conversion source is Timer 2 trigger Out event

- Trigger detection in rising edge

I have the ADC1 configured as follows:

- Channels 1, 2, 6, 7 in single ended mode

- Scan conversion mode is enabled

- DMA continuous request mode is enabled.

- External trigger conversion source is Timer 2 trigger Out event

- Trigger detection in rising edge

I have the Linked List configured as follows:

- Channel to run the linked list is GPDMA in circular mode and the first loop node is ADC1_Node.

- Two nodes are configured, ADC1_Node and ADC4_Node both with request parameter GPDMA1_REQUEST_ADC1 & GPDMA1_REQUEST_ADC4, direction is peripheral to memory in both nodes, data width is a word.

Timer 2 is configured as follows:

- Clock source: internal clock

- Channel 1 in Output Compare CH1

- Prescaler= 999

- Counter Period = 159999

- Trigger event selection TRGO: Output compare (OC1REF)

- Output compare channel 1:

- Mode: Toggle on match

- Pulse: 159999

/* USER CODE BEGIN Header */
/**
  ******************************************************************************
  * @file           : main.c
  * @brief          : Main program body
  ******************************************************************************
  * @attention
  *
  * Copyright (c) 2025 STMicroelectronics.
  * All rights reserved.
  *
  * This software is licensed under terms that can be found in the LICENSE file
  * in the root directory of this software component.
  * If no LICENSE file comes with this software, it is provided AS-IS.
  *
  ******************************************************************************
  */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

COM_InitTypeDef BspCOMInit;
ADC_HandleTypeDef hadc1;
ADC_HandleTypeDef hadc4;

DMA_HandleTypeDef handle_GPDMA1_Channel10;
DMA_HandleTypeDef handle_GPDMA1_Channel8;

TIM_HandleTypeDef htim2;

/* USER CODE BEGIN PV */
uint32_t CNT_TIMER2 = 0;
uint32_t CCR_TIMER2 = 0;
uint32_t CCR_TIMER2_CONF = 0;

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void SystemPower_Config(void);
static void MX_GPIO_Init(void);
static void MX_GPDMA1_Init(void);
static void MX_ADC4_Init(void);
static void MX_ICACHE_Init(void);
static void MX_TIM2_Init(void);
static void MX_ADC1_Init(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

#define ADC4_BUFFER_SIZE   ((uint32_t)  5)		// Buffer size 	ADC4
uint32_t ADC4_VALUES[ADC4_BUFFER_SIZE];			// Variable containing ADC4 conversions data

#define ADC1_BUFFER_SIZE   ((uint32_t)  4)		// Buffer size 	ADC1
uint32_t ADC1_VALUES[ADC1_BUFFER_SIZE];			// Variable containing ADC1 conversions data

/* USER CODE END 0 */

/**
  * @brief  The application entry point.
  * @retval int
  */
int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the System Power */
  SystemPower_Config();

  /* Configure the system clock */
  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_GPDMA1_Init();
  MX_ADC4_Init();
  MX_ICACHE_Init();
  MX_TIM2_Init();
  MX_ADC1_Init();
  /* USER CODE BEGIN 2 */

  MX_ADC_Queue_Config();				// Configuration of Queue

  if(HAL_ADCEx_Calibration_Start(&hadc1, ADC_CALIB_OFFSET_LINEARITY, ADC_SINGLE_ENDED)){	// ADC1 Calibration
	  Error_Handler();
  }

  __HAL_LINKDMA(&hadc1, DMA_Handle, handle_GPDMA1_Channel8);

  if (HAL_DMAEx_List_LinkQ(&handle_GPDMA1_Channel8, &ADC_Queue) != HAL_OK)
  {
    Error_Handler();
  }

  if (HAL_ADC_Start_DMA(&hadc1, (uint32_t *)ADC1_VALUES, (ADC1_BUFFER_SIZE)                    ) != HAL_OK)
  {
    Error_Handler();
  }

  if(HAL_ADCEx_Calibration_Start(&hadc4, ADC_CALIB_OFFSET_LINEARITY, ADC_SINGLE_ENDED)){	// ADC4 Calibration
	  Error_Handler();
  }

  __HAL_LINKDMA(&hadc4, DMA_Handle, handle_GPDMA1_Channel10);

  if (HAL_DMAEx_List_LinkQ(&handle_GPDMA1_Channel10, &ADC_Queue) != HAL_OK)
  {
    Error_Handler();
  }

  if (HAL_ADC_Start_DMA(&hadc4, (uint32_t *)ADC4_VALUES, (ADC4_BUFFER_SIZE)                    ) != HAL_OK)
  {
    Error_Handler();
  }

  HAL_TIM_OC_Start(&htim2, TIM_CHANNEL_1);

  /* USER CODE END 2 */

  /* Initialize led */
  BSP_LED_Init(LED_GREEN);

  /* Initialize USER push-button, will be used to trigger an interrupt each time it's pressed.*/
  BSP_PB_Init(BUTTON_USER, BUTTON_MODE_EXTI);

  /* Initialize COM1 port (115200, 8 bits (7-bit data + 1 stop bit), no parity */
  BspCOMInit.BaudRate   = 115200;
  BspCOMInit.WordLength = COM_WORDLENGTH_8B;
  BspCOMInit.StopBits   = COM_STOPBITS_1;
  BspCOMInit.Parity     = COM_PARITY_NONE;
  BspCOMInit.HwFlowCtl  = COM_HWCONTROL_NONE;
  if (BSP_COM_Init(COM1, &BspCOMInit) != BSP_ERROR_NONE)
  {
    Error_Handler();
  }

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
	  CNT_TIMER2= TIM2->CNT;
	  CCR_TIMER2_CONF= TIM2->CCR1;
	  __HAL_TIM_SET_COMPARE(&htim2, TIM_CHANNEL_1, (uint32_t) CCR_TIMER2);

    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
  }
  /* USER CODE END 3 */
}

/**
  * @brief System Clock Configuration
  * @retval None
  */
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  /** Configure the main internal regulator output voltage
  */
  if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_MSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.MSIState = RCC_MSI_ON;
  RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_0;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI;
  RCC_OscInitStruct.PLL.PLLMBOOST = RCC_PLLMBOOST_DIV4;
  RCC_OscInitStruct.PLL.PLLM = 3;
  RCC_OscInitStruct.PLL.PLLN = 10;
  RCC_OscInitStruct.PLL.PLLP = 2;
  RCC_OscInitStruct.PLL.PLLQ = 2;
  RCC_OscInitStruct.PLL.PLLR = 1;
  RCC_OscInitStruct.PLL.PLLRGE = RCC_PLLVCIRANGE_1;
  RCC_OscInitStruct.PLL.PLLFRACN = 0;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }

  /** Initializes the CPU, AHB and APB buses clocks
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2
                              |RCC_CLOCKTYPE_PCLK3;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB3CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4) != HAL_OK)
  {
    Error_Handler();
  }
}

/**
  * @brief Power Configuration
  * @retval None
  */
static void SystemPower_Config(void)
{

  /*
   * Switch to SMPS regulator instead of LDO
   */
  if (HAL_PWREx_ConfigSupply(PWR_SMPS_SUPPLY) != HAL_OK)
  {
    Error_Handler();
  }
/* USER CODE BEGIN PWR */
/* USER CODE END PWR */
}

/**
  * @brief ADC1 Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_ADC1_Init(void)
{

  /* USER CODE BEGIN ADC1_Init 0 */

  /* USER CODE END ADC1_Init 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_14B;
  hadc1.Init.GainCompensation = 0;
  hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE;
  hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
  hadc1.Init.LowPowerAutoWait = DISABLE;
  hadc1.Init.ContinuousConvMode = DISABLE;
  hadc1.Init.NbrOfConversion = 4;
  hadc1.Init.DiscontinuousConvMode = DISABLE;
  hadc1.Init.ExternalTrigConv = ADC_EXTERNALTRIG_T2_TRGO;
  hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;
  hadc1.Init.DMAContinuousRequests = ENABLE;
  hadc1.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;
  hadc1.Init.Overrun = ADC_OVR_DATA_PRESERVED;
  hadc1.Init.LeftBitShift = ADC_LEFTBITSHIFT_NONE;
  hadc1.Init.ConversionDataManagement = ADC_CONVERSIONDATA_DR;
  hadc1.Init.OversamplingMode = DISABLE;
  if (HAL_ADC_Init(&hadc1) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_1;
  sConfig.Rank = ADC_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC_SAMPLETIME_12CYCLES;
  sConfig.SingleDiff = ADC_SINGLE_ENDED;
  sConfig.OffsetNumber = ADC_OFFSET_NONE;
  sConfig.Offset = 0;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_2;
  sConfig.Rank = ADC_REGULAR_RANK_2;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_6;
  sConfig.Rank = ADC_REGULAR_RANK_3;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_7;
  sConfig.Rank = ADC_REGULAR_RANK_4;
  if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC1_Init 2 */

  /* USER CODE END ADC1_Init 2 */

}

/**
  * @brief ADC4 Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_ADC4_Init(void)
{

  /* USER CODE BEGIN ADC4_Init 0 */

  /* USER CODE END ADC4_Init 0 */

  ADC_ChannelConfTypeDef sConfig = {0};

  /* USER CODE BEGIN ADC4_Init 1 */

  /* USER CODE END ADC4_Init 1 */

  /** Common config
  */
  hadc4.Instance = ADC4;
  hadc4.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1;
  hadc4.Init.Resolution = ADC_RESOLUTION_12B;
  hadc4.Init.DataAlign = ADC_DATAALIGN_RIGHT;
  hadc4.Init.ScanConvMode = ADC4_SCAN_ENABLE;
  hadc4.Init.EOCSelection = ADC_EOC_SINGLE_CONV;
  hadc4.Init.LowPowerAutoPowerOff = ADC_LOW_POWER_NONE;
  hadc4.Init.LowPowerAutoWait = DISABLE;
  hadc4.Init.ContinuousConvMode = DISABLE;
  hadc4.Init.NbrOfConversion = 5;
  hadc4.Init.DiscontinuousConvMode = DISABLE;
  hadc4.Init.ExternalTrigConv = ADC4_EXTERNALTRIG_T2_TRGO;
  hadc4.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_RISING;
  hadc4.Init.DMAContinuousRequests = ENABLE;
  hadc4.Init.TriggerFrequencyMode = ADC_TRIGGER_FREQ_HIGH;
  hadc4.Init.Overrun = ADC_OVR_DATA_OVERWRITTEN;
  hadc4.Init.SamplingTimeCommon1 = ADC4_SAMPLETIME_12CYCLES_5;
  hadc4.Init.SamplingTimeCommon2 = ADC4_SAMPLETIME_12CYCLES_5;
  hadc4.Init.OversamplingMode = DISABLE;
  if (HAL_ADC_Init(&hadc4) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_3;
  sConfig.Rank = ADC4_REGULAR_RANK_1;
  sConfig.SamplingTime = ADC4_SAMPLINGTIME_COMMON_1;
  sConfig.OffsetNumber = ADC_OFFSET_NONE;
  sConfig.Offset = 0;
  if (HAL_ADC_ConfigChannel(&hadc4, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_4;
  sConfig.Rank = ADC4_REGULAR_RANK_2;
  if (HAL_ADC_ConfigChannel(&hadc4, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_9;
  sConfig.Rank = ADC4_REGULAR_RANK_3;
  if (HAL_ADC_ConfigChannel(&hadc4, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_10;
  sConfig.Rank = ADC4_REGULAR_RANK_4;
  if (HAL_ADC_ConfigChannel(&hadc4, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }

  /** Configure Regular Channel
  */
  sConfig.Channel = ADC_CHANNEL_11;
  sConfig.Rank = ADC4_REGULAR_RANK_5;
  if (HAL_ADC_ConfigChannel(&hadc4, &sConfig) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ADC4_Init 2 */

  /* USER CODE END ADC4_Init 2 */

}

/**
  * @brief GPDMA1 Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_GPDMA1_Init(void)
{

  /* USER CODE BEGIN GPDMA1_Init 0 */

  /* USER CODE END GPDMA1_Init 0 */

  /* Peripheral clock enable */
  __HAL_RCC_GPDMA1_CLK_ENABLE();

  /* USER CODE BEGIN GPDMA1_Init 1 */

  /* USER CODE END GPDMA1_Init 1 */
  handle_GPDMA1_Channel10.Instance = GPDMA1_Channel10;
  handle_GPDMA1_Channel10.InitLinkedList.Priority = DMA_LOW_PRIORITY_LOW_WEIGHT;
  handle_GPDMA1_Channel10.InitLinkedList.LinkStepMode = DMA_LSM_FULL_EXECUTION;
  handle_GPDMA1_Channel10.InitLinkedList.LinkAllocatedPort = DMA_LINK_ALLOCATED_PORT0;
  handle_GPDMA1_Channel10.InitLinkedList.TransferEventMode = DMA_TCEM_LAST_LL_ITEM_TRANSFER;
  handle_GPDMA1_Channel10.InitLinkedList.LinkedListMode = DMA_LINKEDLIST_CIRCULAR;
  if (HAL_DMAEx_List_Init(&handle_GPDMA1_Channel10) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_DMA_ConfigChannelAttributes(&handle_GPDMA1_Channel10, DMA_CHANNEL_NPRIV) != HAL_OK)
  {
    Error_Handler();
  }
  handle_GPDMA1_Channel8.Instance = GPDMA1_Channel8;
  handle_GPDMA1_Channel8.InitLinkedList.Priority = DMA_LOW_PRIORITY_LOW_WEIGHT;
  handle_GPDMA1_Channel8.InitLinkedList.LinkStepMode = DMA_LSM_FULL_EXECUTION;
  handle_GPDMA1_Channel8.InitLinkedList.LinkAllocatedPort = DMA_LINK_ALLOCATED_PORT0;
  handle_GPDMA1_Channel8.InitLinkedList.TransferEventMode = DMA_TCEM_LAST_LL_ITEM_TRANSFER;
  handle_GPDMA1_Channel8.InitLinkedList.LinkedListMode = DMA_LINKEDLIST_CIRCULAR;
  if (HAL_DMAEx_List_Init(&handle_GPDMA1_Channel8) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_DMA_ConfigChannelAttributes(&handle_GPDMA1_Channel8, DMA_CHANNEL_NPRIV) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN GPDMA1_Init 2 */

  /* USER CODE END GPDMA1_Init 2 */

}

/**
  * @brief ICACHE Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_ICACHE_Init(void)
{

  /* USER CODE BEGIN ICACHE_Init 0 */

  /* USER CODE END ICACHE_Init 0 */

  /* USER CODE BEGIN ICACHE_Init 1 */

  /* USER CODE END ICACHE_Init 1 */

  /** Enable instruction cache in 1-way (direct mapped cache)
  */
  if (HAL_ICACHE_ConfigAssociativityMode(ICACHE_1WAY) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_ICACHE_Enable() != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN ICACHE_Init 2 */

  /* USER CODE END ICACHE_Init 2 */

}

/**
  * @brief TIM2 Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_TIM2_Init(void)
{

  /* USER CODE BEGIN TIM2_Init 0 */

  /* USER CODE END TIM2_Init 0 */

  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
  TIM_MasterConfigTypeDef sMasterConfig = {0};
  TIM_OC_InitTypeDef sConfigOC = {0};

  /* USER CODE BEGIN TIM2_Init 1 */

  /* USER CODE END TIM2_Init 1 */
  htim2.Instance = TIM2;
  htim2.Init.Prescaler = 999;
  htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim2.Init.Period = 159999;
  htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
  if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
  {
    Error_Handler();
  }
  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
  if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
  {
    Error_Handler();
  }
  if (HAL_TIM_OC_Init(&htim2) != HAL_OK)
  {
    Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_OC1REF;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
  {
    Error_Handler();
  }
  sConfigOC.OCMode = TIM_OCMODE_TOGGLE;
  sConfigOC.Pulse = 159998;
  sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
  sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
  if (HAL_TIM_OC_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN TIM2_Init 2 */

  /* USER CODE END TIM2_Init 2 */
  HAL_TIM_MspPostInit(&htim2);

}

/**
  * @brief GPIO Initialization Function
  * @PAram None
  * @retval None
  */
static void MX_GPIO_Init(void)
{
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();

/* USER CODE BEGIN MX_GPIO_Init_2 */
/* USER CODE END MX_GPIO_Init_2 */
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @PAram  file: pointer to the source file name
  * @PAram  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

TDK · ‎2025-02-27

When you debug and run the code, does execution reach the main loop? What happens if you increase SamplingTime to max?

If you feel a post has answered your question, please click "Accept as Solution".

Marc3 · ‎2025-02-27

Thank you for the fast answer.

No, when debbuging it the execution does not reach the while loop.

It gets stuck in the following lines:

  if (HAL_DMAEx_List_LinkQ(&handle_GPDMA1_Channel10, &ADC_Queue) != HAL_OK)
  {
    Error_Handler();
  }

Therefore the link between the ADC_Queue and the Channel 10 of the GPDMA is not well configured.

Heres the configuration of the GPDMA channels:

And heres the configuration of the ADC_Queue:

And the ADC_Nodes1(the ADC_Node4 is configured in the same way):

Is everything well configured?

If i increase the amount of sample time nothing changes.

Marc3 · ‎2025-02-27

Hello,

Debbuging the code the execution stops at the following part of the code:

  if (pQList->State == HAL_DMA_QUEUE_STATE_BUSY)
  {
    /* Update the queue error code */
    pQList->ErrorCode = HAL_DMA_QUEUE_ERROR_BUSY;

    return HAL_ERROR;
  }

Seems like the DMA is busy.

I guess the Linked List is not well configured?