AnsweredAssumed Answered

STM32F373: SDADC1+DMA2+TIM3

Question asked by engkyr on Dec 17, 2015
Latest reply on Dec 22, 2015 by engkyr
Hello everybody,


I want to start a conversion on SDADC1 on an external trigger from TIM1_CH1 and use DMA2_CH3 to store the samples on SRAM.
fs = 1 kHz
buffer size = 2000


I want to toggle a led when the half transfer interrupt and the complete trasfer interrupt, from the DMA, are sets, but the led isn't blinking.
I did the debug and apparently the code write correctly on the registers. Could someone help me?

main
#include "stm32f3xx_hal.h"
 
/* USER CODE BEGIN Includes */
 
/* USER CODE END Includes */
 
/* Private variables ---------------------------------------------------------*/
SDADC_HandleTypeDef     hsdadc1;
DMA_HandleTypeDef       hdma_sdadc1;
 
TIM_HandleTypeDef       htim3;
 
/* USER CODE BEGIN PV */
/* Private variables ---------------------------------------------------------*/
static uint32_t aDST_Buffer[2000];
 
GPIO_InitTypeDef        GPIO_InitStruct;
 
/* USER CODE END PV */
 
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
 
//static void MX_TIM3_Init(void);
 
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
static void SDADC1_Init(void);
static void GPIO_Init(void);
static void DMA_Init(void);
 
 
/* USER CODE END PFP */
 
/* USER CODE BEGIN 0 */
 
/* USER CODE END 0 */
 
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();
 
  /* Configure the system clock */
  SystemClock_Config();
 
  /* Initialize all configured peripherals */
  
   
 
  /* USER CODE BEGIN 2 */
  GPIO_Init();
  DMA_Init();
  SDADC1_Init();
   
   
  HAL_GPIO_WritePin(GPIOE, GPIO_PIN_15, GPIO_PIN_SET);
 
  /* USER CODE END 2 */
 
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
  /* USER CODE END WHILE */
 
  /* USER CODE BEGIN 3 */
 
  }
  /* USER CODE END 3 */
 
}
 
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
 
  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  RCC_PeriphCLKInitTypeDef PeriphClkInit;
 
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
  RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
  HAL_RCC_OscConfig(&RCC_OscInitStruct);
 
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2);
 
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_SDADC;
  PeriphClkInit.SdadcClockSelection = RCC_SDADCSYSCLK_DIV12;
  HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit);
 
  HAL_PWREx_EnableSDADCAnalog(PWR_SDADC_ANALOG1);
 
  HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
 
  HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
 
  /* SysTick_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
   
  HAL_RCC_MCOConfig(RCC_MCO, RCC_MCOSOURCE_SYSCLK, RCC_MCO_NODIV);
}
 
 
/* USER CODE BEGIN 4 */
 
/** Configure pins as **********************************************************
        * Analog
        * Input
        * Output
        * EVENT_OUT
        * EXTI
*/
void GPIO_Init(void)
{
 
  /* GPIO Ports Clock Enable */
  __GPIOA_CLK_ENABLE();
  __GPIOE_CLK_ENABLE();
   
  GPIO_InitStruct.Pin           = (GPIO_PIN_9 | GPIO_PIN_15);
  GPIO_InitStruct.Mode          = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull          = GPIO_NOPULL;
  GPIO_InitStruct.Speed         = GPIO_SPEED_HIGH;
  HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
}
 
/*******************************************************************************
  * Enable DMA controller clock
  */
void DMA_Init(void)
{
  /* DMA controller clock enable */
    __DMA2_CLK_ENABLE();
     
  /* Set Interrupt Group Priority */
    HAL_NVIC_SetPriority(DMA2_Channel3_IRQn, 0, 0);
 
    /* Enable the DMA global Interrupt */
    HAL_NVIC_EnableIRQ(DMA2_Channel3_IRQn);
}
 
 
/* SDADC1 init function ***************************************************/
void SDADC1_Init(void)
{
 
  SDADC_ConfParamTypeDef ConfParamStruct;
 
    /**Configure the SDADC low power mode, fast conversion mode,
    slow clock mode and SDADC1 reference voltage
    */
  hsdadc1.Instance                      = SDADC1;
  hsdadc1.Init.IdleLowPowerMode         = SDADC_LOWPOWER_NONE;
  hsdadc1.Init.FastConversionMode       = SDADC_FAST_CONV_DISABLE;
  hsdadc1.Init.SlowClockMode            = SDADC_SLOW_CLOCK_DISABLE;
  hsdadc1.Init.ReferenceVoltage         = SDADC_VREF_EXT;
  HAL_SDADC_Init(&hsdadc1);
 
    /**Set parameters for SDADC configuration 0 Register
    */
  ConfParamStruct.InputMode             = SDADC_INPUT_MODE_SE_ZERO_REFERENCE;
  ConfParamStruct.Gain                  = SDADC_GAIN_1;
  ConfParamStruct.CommonMode            = SDADC_COMMON_MODE_VSSA;
  ConfParamStruct.Offset                = 0;
  HAL_SDADC_PrepareChannelConfig(&hsdadc1, SDADC_CONF_INDEX_0, &ConfParamStruct);
 
    /**Set parameters for SDADC configuration 1 Register
    */
  //HAL_SDADC_PrepareChannelConfig(&hsdadc1, SDADC_CONF_INDEX_1, &ConfParamStruct);
 
    /**Set parameters for SDADC configuration 2 Register
    */
  //HAL_SDADC_PrepareChannelConfig(&hsdadc1, SDADC_CONF_INDEX_2, &ConfParamStruct);
   
    // associate channel 0 to the configuration 0
  HAL_SDADC_AssociateChannelConfig(&hsdadc1, SDADC_CHANNEL_0, SDADC_CONF_INDEX_0);
   
    // channel 0 for injected conversion and not for continuous mode
  HAL_SDADC_InjectedConfigChannel(&hsdadc1, SDADC_CHANNEL_0, SDADC_CONTINUOUS_CONV_OFF);
   
    // select external trigger for injected conversion
  HAL_SDADC_SelectInjectedTrigger(&hsdadc1, SDADC_EXTERNAL_TRIGGER);
   
    // select timer 3 channel 1 as external trigger and falling edge
  HAL_SDADC_SelectInjectedExtTrigger(&hsdadc1, SDADC_EXT_TRIG_TIM13_CC1, SDADC_EXT_TRIG_FALLING_EDGE);
   
    // Start calibration in polling mode
  HAL_SDADC_CalibrationStart(&hsdadc1, SDADC_CALIBRATION_SEQ_1);
   
    // pool for end of calibration
  HAL_SDADC_PollForCalibEvent(&hsdadc1, HAL_MAX_DELAY);
   
    // start injected conversion in DMA mode
  HAL_SDADC_InjectedStart_DMA(&hsdadc1, aDST_Buffer, 2000);
   
    // start the timer'2 channel
  HAL_TIM_PWM_Start(&htim3, TIM_CHANNEL_1);
}
 
// Gestione dell'interrupt di Half transfer del DMA ****************************
void HalfTransfer(DMA_HandleTypeDef *hsadc1)
{
  HAL_GPIO_WritePin(GPIOE, GPIO_PIN_15, GPIO_PIN_RESET);
}
 
// gestione dell'interrupt di trasferimento completo del DMA
void TransferComplete(DMA_HandleTypeDef *hsadc1)
{
  HAL_GPIO_WritePin(GPIOE, GPIO_PIN_15, GPIO_PIN_SET);
}
 
// gestione dell'interrupt di error del DMA
void TransferError(DMA_HandleTypeDef *hsadc1)
{
  HAL_GPIO_TogglePin(GPIOE, GPIO_PIN_9);
}
 
/* USER CODE END 4 */
 
#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
 
/**
  * @}
  */
 
/**
  * @}
*/

stm32f3xx_hal_msp
#include "stm32f3xx_hal.h"
 
extern DMA_HandleTypeDef        hdma_sdadc1;
extern TIM_HandleTypeDef        htim3;
 
/* USER CODE BEGIN 0 */
void HalfTransfer(DMA_HandleTypeDef *hsadc1);
void TransferComplete(DMA_HandleTypeDef *hsadc1);
void TransferError(DMA_HandleTypeDef *hsadc1);
/* USER CODE END 0 */
 
/**
  * Initializes the Global MSP.
  */
void HAL_MspInit(void)
{
  /* USER CODE BEGIN MspInit 0 */
 
  /* USER CODE END MspInit 0 */
 
  __SYSCFG_CLK_ENABLE();
 
  HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
 
  /* System interrupt init*/
  /* SysTick_IRQn interrupt configuration */
  HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
 
  /* USER CODE BEGIN MspInit 1 */
 
  /* USER CODE END MspInit 1 */
}
 
void HAL_SDADC_MspInit(SDADC_HandleTypeDef* hsdadc)
{
 
  GPIO_InitTypeDef GPIO_InitStruct;
  if(hsdadc->Instance==SDADC1)
  {
  /* USER CODE BEGIN SDADC1_MspInit 0 */
    //HAL_PWREx_EnableSDADCAnalog(PWR_SDADC_ANALOG1);
     
  /* USER CODE END SDADC1_MspInit 0 */
    /* Peripheral clock enable */
    __SDADC1_CLK_ENABLE();
   
    /**SDADC1 GPIO Configuration   
    PE12     ------> SDADC1_AIN0P
    */
    GPIO_InitStruct.Pin         = GPIO_PIN_12;
    GPIO_InitStruct.Mode        = GPIO_MODE_ANALOG;
    GPIO_InitStruct.Pull        = GPIO_NOPULL;
    HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
 
    /* USER CODE BEGIN SDADC1_MspInit 1 */
     
    /* Peripheral DMA init*/ 
   
    hdma_sdadc1.Instance                        = DMA2_Channel3;
    hdma_sdadc1.Init.Direction                  = DMA_PERIPH_TO_MEMORY;
    hdma_sdadc1.Init.PeriphInc                  = DMA_PINC_DISABLE;
    hdma_sdadc1.Init.MemInc                     = DMA_MINC_ENABLE;
    hdma_sdadc1.Init.PeriphDataAlignment        = DMA_PDATAALIGN_HALFWORD;
    hdma_sdadc1.Init.MemDataAlignment           = DMA_MDATAALIGN_HALFWORD;
    hdma_sdadc1.Init.Mode                       = DMA_CIRCULAR;
    hdma_sdadc1.Init.Priority = DMA_PRIORITY_HIGH;
     
    /* Select Callbacks functions called after Half complete, Transfer complete and Transfer error */
    hdma_sdadc1.XferCpltCallback        = TransferComplete;
    hdma_sdadc1.XferErrorCallback       = TransferError;
    hdma_sdadc1.XferHalfCpltCallback    = HalfTransfer;
     
    HAL_DMA_Init(&hdma_sdadc1);
 
    __HAL_LINKDMA(hsdadc,hdma,hdma_sdadc1);
     
    // HAL_DMA_Start_IT(DMA_HandleTypeDef *hdma, uint32_t SrcAddress, uint32_t DstAddress, uint32_t DataLength)
     
     
    /**TIM3_CH1 GPIO Configuration   
    PA6     
    */
    GPIO_InitStruct.Pin         = GPIO_PIN_6;
    GPIO_InitStruct.Mode        = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull        = GPIO_NOPULL;
    GPIO_InitStruct.Speed       = GPIO_SPEED_HIGH;
    GPIO_InitStruct.Alternate   = GPIO_AF2_TIM3;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
     
    // peripheral TIM3 init
    TIM_ClockConfigTypeDef sClockSourceConfig;
    TIM_MasterConfigTypeDef sMasterConfig;
    TIM_OC_InitTypeDef sConfigOC;
 
    htim3.Instance = TIM3;
    htim3.Init.Prescaler = 11;
    htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
    htim3.Init.Period = 5999;
    htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
    HAL_TIM_Base_Init(&htim3);
 
    sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
    HAL_TIM_ConfigClockSource(&htim3, &sClockSourceConfig);
 
    HAL_TIM_PWM_Init(&htim3);
 
    sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
    sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
    HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig);
 
    sConfigOC.OCMode = TIM_OCMODE_PWM1;
    sConfigOC.Pulse = 3000;
    sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
    sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
    HAL_TIM_PWM_ConfigChannel(&htim3, &sConfigOC, TIM_CHANNEL_1);
     
  /* USER CODE END SDADC1_MspInit 1 */
  }
 
}
 
void HAL_SDADC_MspDeInit(SDADC_HandleTypeDef* hsdadc)
{
 
  if(hsdadc->Instance==SDADC1)
  {
  /* USER CODE BEGIN SDADC1_MspDeInit 0 */
 
  /* USER CODE END SDADC1_MspDeInit 0 */
    /* Peripheral clock disable */
    __SDADC1_CLK_DISABLE();
   
    /**SDADC1 GPIO Configuration   
    PE12     ------> SDADC1_AIN0P
    */
    HAL_GPIO_DeInit(GPIOE, GPIO_PIN_12);
 
    /* Peripheral DMA DeInit*/
    HAL_DMA_DeInit(hsdadc->hdma);
  }
  /* USER CODE BEGIN SDADC1_MspDeInit 1 */
    // TIM3 deInit
    HAL_TIM_PWM_DeInit(&htim3);
 
  /* USER CODE END SDADC1_MspDeInit 1 */
 
}
 
void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* htim_base)
{
 
  GPIO_InitTypeDef GPIO_InitStruct;
  if(htim_base->Instance==TIM3)
  {
  /* USER CODE BEGIN TIM3_MspInit 0 */
 
  /* USER CODE END TIM3_MspInit 0 */
    /* Peripheral clock enable */
    __TIM3_CLK_ENABLE();
   
    /**TIM3 GPIO Configuration   
    PA6     ------> TIM3_CH1
    */
    GPIO_InitStruct.Pin = GPIO_PIN_6;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
    GPIO_InitStruct.Alternate = GPIO_AF2_TIM3;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
  /* USER CODE BEGIN TIM3_MspInit 1 */
 
  /* USER CODE END TIM3_MspInit 1 */
  }
 
}
 
void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base)
{
 
  if(htim_base->Instance==TIM3)
  {
  /* USER CODE BEGIN TIM3_MspDeInit 0 */
 
  /* USER CODE END TIM3_MspDeInit 0 */
    /* Peripheral clock disable */
    __TIM3_CLK_DISABLE();
   
    /**TIM3 GPIO Configuration   
    PA6     ------> TIM3_CH1
    */
    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_6);
 
  }
  /* USER CODE BEGIN TIM3_MspDeInit 1 */
 
  /* USER CODE END TIM3_MspDeInit 1 */
 
}
 
/* USER CODE BEGIN 1 */
 
/* USER CODE END 1 */
 
/**
  * @}
  */
 
/**
  * @}
  */

stm32f3xx_it.c
#include "stm32f3xx_hal.h"
#include "stm32f3xx.h"
#include "stm32f3xx_it.h"
 
/* USER CODE BEGIN 0 */
 
/* USER CODE END 0 */
 
/* External variables --------------------------------------------------------*/
extern DMA_HandleTypeDef hdma_sdadc1;
 
/******************************************************************************/
/*            Cortex-M4 Processor Interruption and Exception Handlers         */
/******************************************************************************/
 
/**
* @brief This function handles System tick timer.
*/
void SysTick_Handler(void)
{
  /* USER CODE BEGIN SysTick_IRQn 0 */
 
  /* USER CODE END SysTick_IRQn 0 */
  HAL_IncTick();
  HAL_SYSTICK_IRQHandler();
  /* USER CODE BEGIN SysTick_IRQn 1 */
 
  /* USER CODE END SysTick_IRQn 1 */
}
 
/******************************************************************************/
/* STM32F3xx Peripheral Interrupt Handlers                                    */
/* Add here the Interrupt Handlers for the used peripherals.                  */
/* For the available peripheral interrupt handler names,                      */
/* please refer to the startup file (startup_stm32f3xx.s).                    */
/******************************************************************************/
 
/**
* @brief This function handles DMA2 channel3 global interrupt.
*/
void DMA2_Channel3_IRQHandler(void)
{
  /* USER CODE BEGIN DMA2_Channel3_IRQn 0 */
 
  /* USER CODE END DMA2_Channel3_IRQn 0 */
  HAL_DMA_IRQHandler(&hdma_sdadc1);
  /* USER CODE BEGIN DMA2_Channel3_IRQn 1 */
 
  /* USER CODE END DMA2_Channel3_IRQn 1 */
}
 
/* USER CODE BEGIN 1 */
 
/* USER CODE END 1 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

I known...it's a lot of code, but I need some input

Regards,

Outcomes