这个函数是配置和启动SPI的DMA传输吗?：HAL_StatusTypeDef HAL_SPI...

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李公发布时间：2015-6-4 10:59

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这个函数是配置和启动SPI的DMA传输吗?：HAL_StatusTypeDef HAL_SPI_TransmitReceive_DMA(SPI_HandleTypeDef *hspi, uint8_t *pTxData, uint8_t *pRxData, uint16_t Size)
是从用STM32CubeMX生成的，给果没有传输。参考了STM32Cube_FW_F3_V1.1.0\Projects\STM32F303RE-Nucleo\Examples\SPI\SPI_FullDuplex_ComDMA这个例子。以下是我的程序。

/**
  ******************************************************************************
  * File Name       : main.c
  * Date             : 04/06/2015 09:34:39
  * Description       : Main program body
  ******************************************************************************
  *
  * COPYRIGHT(c) 2015 STMicroelectronics
  *
  * Redistribution and use in source and binary forms, with or without modification,
  * are permitted provided that the following conditions are met:
  * 1. Redistributions of source code must retain the above copyright notice,
  *    this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
  * 3. Neither the name of STMicroelectronics nor the names of its contributors
  *    may be used to endorse or promote products derived from this software
  *    without specific prior written permission.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  ******************************************************************************
  */
/* Includes ------------------------------------------------------------------*/
#include "stm32f3xx_hal.h"
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables ---------------------------------------------------------*/
SPI_HandleTypeDef hspi2;
DMA_HandleTypeDef hdma_spi2_rx;
DMA_HandleTypeDef hdma_spi2_tx;
/* USER CODE BEGIN PV */
/* Buffer used for transmission */
#define BUFFERSIZE 16
uint8_t aTxBuffer[] = "****SPI - Two Boards communication based on DMA **** SPI Message ******** SPI Message ******** SPI Message ****";
/* Buffer used for reception */
uint8_t aRxBuffer[BUFFERSIZE];
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_DMA_Init(void);
static void MX_SPI2_Init(void);
/* USER CODE BEGIN PFP */
static void Error_Handler(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 */
  MX_GPIO_Init();
  MX_DMA_Init();
  MX_SPI2_Init();
  /* USER CODE BEGIN 2 */
if(HAL_SPI_TransmitReceive_DMA(&hspi2, (uint8_t*)aTxBuffer, (uint8_t *)aRxBuffer, BUFFERSIZE) != HAL_OK)
  {
/* Transfer error in transmission process */
Error_Handler();
  }
  /* USER CODE END 2 */
  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
  /* USER CODE END WHILE */
  /* USER CODE BEGIN 3 */
  HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,GPIO_PIN_SET);
  HAL_Delay(100);
HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,GPIO_PIN_RESET);
  HAL_Delay(100);
  }
  /* USER CODE END 3 */
}
/** System Clock Configuration
*/
void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct;
  RCC_ClkInitTypeDef RCC_ClkInitStruct;
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = 16;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  HAL_RCC_OscConfig(&RCC_OscInitStruct);
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_SYSCLK;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
  HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0);
  __SYSCFG_CLK_ENABLE();
}
/* SPI2 init function */
void MX_SPI2_Init(void)
{
  hspi2.Instance = SPI2;
  hspi2.Init.Mode = SPI_MODE_MASTER;
  hspi2.Init.Direction = SPI_DIRECTION_2LINES;
  hspi2.Init.DataSize = SPI_DATASIZE_16BIT;
  hspi2.Init.CLKPolarity = SPI_POLARITY_LOW;
  hspi2.Init.CLKPhase = SPI_PHASE_1EDGE;
  hspi2.Init.NSS = SPI_NSS_HARD_OUTPUT;
  hspi2.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;
  hspi2.Init.FirstBit = SPI_FIRSTBIT_MSB;
  hspi2.Init.TIMode = SPI_TIMODE_DISABLED;
  hspi2.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
  hspi2.Init.NSSPMode = SPI_NSS_PULSE_ENABLED;
  HAL_SPI_Init(&hspi2);
}
/**
  * Enable DMA controller clock
  */
void MX_DMA_Init(void)
{
  /* DMA controller clock enable */
  __DMA1_CLK_ENABLE();
  /* DMA interrupt init */
  HAL_NVIC_SetPriority(DMA1_Channel5_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel5_IRQn);
  HAL_NVIC_SetPriority(DMA1_Channel4_IRQn, 0, 0);
  HAL_NVIC_EnableIRQ(DMA1_Channel4_IRQn);
}
/** Configure pins as
      * Analog
      * Input
      * Output
      * EVENT_OUT
      * EXTI
*/
void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct;
  /* GPIO Ports Clock Enable */
  __GPIOF_CLK_ENABLE();
  __GPIOB_CLK_ENABLE();
  /*Configure GPIO pin : PB13 */
  GPIO_InitStruct.Pin = GPIO_PIN_13;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
  HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
/**
  * @brief  This function is executed in case of error occurrence.
  * @param  None
  * @retval None
  */
static void Error_Handler(void)
{
  while(1)
  {
/* Toogle LED for error */
HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,GPIO_PIN_SET);
  HAL_Delay(100);
HAL_GPIO_WritePin(GPIOB,GPIO_PIN_13,GPIO_PIN_RESET);
  HAL_Delay(1000);
}
}

/* 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
/**
  * @}
  */
/**
  * @}
*/
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

赞收藏 1 评论10 发布时间：2015-6-4 10:59

10个回答

guohaidao 回答时间：2016-8-31 17:26:51

折腾一个下午终于弄好了SPI的DMA通道，HAL确实很复杂，注意利用例子上的两个回调函数来检测是否发送完毕，另外HAL_SPI_TransmitReceive_DMA这个函数可以，其他单独收发的对于配置成双工SPI工作不正常。
__IO uint32_t wTransferState = SPI_DMA_TRANSFER_WAIT;

void HAL_SPI_TxRxCpltCallback(SPI_HandleTypeDef *hspi)
{
wTransferState = SPI_DMA_TRANSFER_COMPLETE;
}

void HAL_SPI_ErrorCallback(SPI_HandleTypeDef *hspi)
{
wTransferState = SPI_DMA_TRANSFER_ERROR;
}