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HAL库版本的stm32 usart dma空闲中断接收源码

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ID:256558 发表于 2018-2-2 15:56 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
分享个stm32单片机的 usart dma空闲中断发送源码
是基于HAL库版本的
单片机源程序如下:
  1. /**
  2.   ******************************************************************************
  3.   * File Name          : main.c
  4.   * Description        : Main program body
  5.   ******************************************************************************
  6.   ** This notice applies to any and all portions of this file
  7.   * that are not between comment pairs USER CODE BEGIN and
  8.   * USER CODE END. Other portions of this file, whether
  9.   * inserted by the user or by software development tools
  10.   * are owned by their respective copyright owners.
  11.   *
  12.   * COPYRIGHT(c) 2018 STMicroelectronics
  13.   *
  14.   * Redistribution and use in source and binary forms, with or without modification,
  15.   * are permitted provided that the following conditions are met:
  16.   *   1. Redistributions of source code must retain the above copyright notice,
  17.   *      this list of conditions and the following disclaimer.
  18.   *   2. Redistributions in binary form must reproduce the above copyright notice,
  19.   *      this list of conditions and the following disclaimer in the documentation
  20.   *      and/or other materials provided with the distribution.
  21.   *   3. Neither the name of STMicroelectronics nor the names of its contributors
  22.   *      may be used to endorse or promote products derived from this software
  23.   *      without specific prior written permission.
  24.   *
  25.   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  26.   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  27.   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  28.   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
  29.   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  30.   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  31.   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  32.   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
  33.   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  34.   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35.   *
  36.   ******************************************************************************
  37.   */

  39. /* Includes ------------------------------------------------------------------*/
  40. #include "main.h"
  41. #include "stm32f4xx_hal.h"
  42. #include "dma.h"
  43. #include "usart.h"
  44. #include "gpio.h"

  46. /* USER CODE BEGIN Includes */
  47. /* USER CODE END Includes */

  49. /* Private variables ---------------------------------------------------------*/

  51. /* USER CODE BEGIN PV */
  52. /* Private variables ---------------------------------------------------------*/

  54. /* USER CODE END PV */

  56. /* Private function prototypes -----------------------------------------------*/
  57. void SystemClock_Config(void);

  59. /* USER CODE BEGIN PFP */
  60. /* Private function prototypes -----------------------------------------------*/

  62. /* USER CODE END PFP */

  64. /* USER CODE BEGIN 0 */

  66. /* USER CODE END 0 */

  68. int main(void)
  69. {

  71.   /* USER CODE BEGIN 1 */

  73.   /* USER CODE END 1 */

  75.   /* MCU Configuration----------------------------------------------------------*/

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

  80.   /* USER CODE BEGIN Init */

  82.   /* USER CODE END Init */

  84.   /* Configure the system clock */
  85.   SystemClock_Config();

  87.   /* USER CODE BEGIN SysInit */

  89.   /* USER CODE END SysInit */

  91.   /* Initialize all configured peripherals */
  92.   MX_GPIO_Init();
  93.   MX_DMA_Init();
  94.   MX_USART3_UART_Init();
  95.         

  97.   /* USER CODE BEGIN 2 */
  98. HAL_UART_Receive_DMA(&huart3,Test1.Data_Space,DataSize);
  99. __HAL_UART_ENABLE_IT(&huart3, UART_IT_IDLE);
  100.   /* USER CODE END 2 */

  102.   /* Infinite loop */
  103.   /* USER CODE BEGIN WHILE */
  104.   while (1)
  105.   {
  106.   /* USER CODE END WHILE */

  108.   /* USER CODE BEGIN 3 */
  109. if(Test1.Send_Flag==1 && Test1.Send1==1)
  110. {
  111.    HAL_UART_Transmit_DMA(&huart3, SENDDATA, Test1.RLen);  
  112.          Test1.Send1=0;
  113.          Test1.Send_Flag=0;
  114. }
  115. if(Test1.Send_Flag==1 && Test1.Send1==0)
  116. {
  117.    HAL_UART_Transmit_DMA(&huart3, SENDDATB, Test1.RLen);  
  118.          Test1.Send1=1;
  119.          Test1.Send_Flag=0;

  121. }
  122.   }
  123.   /* USER CODE END 3 */

  125. }

  127. /** System Clock Configuration
  128. */
  129. void SystemClock_Config(void)
  130. {

  132.   RCC_OscInitTypeDef RCC_OscInitStruct;
  133.   RCC_ClkInitTypeDef RCC_ClkInitStruct;

  135.     /**Configure the main internal regulator output voltage
  136.     */
  137.   __HAL_RCC_PWR_CLK_ENABLE();

  139.   __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  141.     /**Initializes the CPU, AHB and APB busses clocks
  142.     */
  143.   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  144.   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  145.   RCC_OscInitStruct.HSICalibrationValue = 16;
  146.   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  147.   RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  148.   RCC_OscInitStruct.PLL.PLLM = 8;
  149.   RCC_OscInitStruct.PLL.PLLN = 84;
  150.   RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
  151.   RCC_OscInitStruct.PLL.PLLQ = 4;
  152.   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  153.   {
  154.     _Error_Handler(__FILE__, __LINE__);
  155.   }

  157.     /**Initializes the CPU, AHB and APB busses clocks
  158.     */
  159.   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
  160.                               |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  161.   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  162.   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  163.   RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  164.   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  166.   if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
  167.   {
  168.     _Error_Handler(__FILE__, __LINE__);
  169.   }

  171.     /**Configure the Systick interrupt time
  172.     */
  173.   HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);

  175.     /**Configure the Systick
  176.     */
  177.   HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);

  179.   /* SysTick_IRQn interrupt configuration */
  180.   HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
  181. }

  183. /* USER CODE BEGIN 4 */
  184. void HAL_SYSTICK_Callback(void)
  185. {
  186.         
  187. }
  188. /* USER CODE END 4 */

  190. /**
  191.   * @brief  This function is executed in case of error occurrence.
  192.   * @param  None
  193.   * @retval None
  194.   */
  195. void _Error_Handler(char * file, int line)
  196. {
  197.   /* USER CODE BEGIN Error_Handler_Debug */
  198.   /* User can add his own implementation to report the HAL error return state */
  199.   while(1)
  200.   {
  201.   }
  202.   /* USER CODE END Error_Handler_Debug */
  203. }

  205. #ifdef USE_FULL_ASSERT

  207. /**
  208.    * @brief Reports the name of the source file and the source line number
  209.    * where the assert_param error has occurred.
  210.    * @param file: pointer to the source file name
  211.    * @param line: assert_param error line source number
  212.    * @retval None
  213.    */
  214. void assert_failed(uint8_t* file, uint32_t line)
  215. {
  216.   /* USER CODE BEGIN 6 */
  217.   /* User can add his own implementation to report the file name and line number,
  218.     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  219.   /* USER CODE END 6 */

  221. }


  224. #endif

  226. /**
  227.   * @}
  228.   */

  230. /**
  231.   * @}
  232. */

  234. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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所有资料51hei提供下载:
F4usart3_test2.rar (523.35 KB, 下载次数: 53)


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沙发
ID:226410 发表于 2018-6-11 19:04 | 只看该作者
取走了~谢谢了
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