FreeRTOS篇6：任务综合小实验

一.实验需求

创建 4 个任务：taskLED1，taskLED2，taskKEY1，taskKEY2，任务要求如下：

taskLED1：间隔 500ms 闪烁 LED1；

taskLED2：间隔 1000ms 闪烁 LED2；

taskKEY1：如果 taskLED1 存在，则按下 KEY1 后删除 taskLED1 ，否则创建 taskLED1 ；

taskKEY2：如果 taskLED2 正常运行，则按下 KEY2 后挂起 taskLED2 ，否则恢复 taskLED2

二.cubeMX配置

三.代码实现

/* USER CODE BEGIN Header */
/********************************************************************************* File Name          : freertos.c* Description        : Code for freertos applications******************************************************************************* @attention** Copyright (c) 2024 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 "FreeRTOS.h"
#include "task.h"
#include "main.h"
#include "cmsis_os.h"/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include <stdio.h>
/* 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 ---------------------------------------------------------*/
/* USER CODE BEGIN Variables *//* USER CODE END Variables */
osThreadId taskLED1Handle;
osThreadId taskLED2Handle;
osThreadId taskKEY1Handle;
osThreadId taskKEY2Handle;/* Private function prototypes -----------------------------------------------*/
/* USER CODE BEGIN FunctionPrototypes *//* USER CODE END FunctionPrototypes */void StartTaskLED1(void const * argument);
void StartTaskLED2(void const * argument);
void StartTaskKEY1(void const * argument);
void StartTaskKEY2(void const * argument);void MX_FREERTOS_Init(void); /* (MISRA C 2004 rule 8.1) *//* GetIdleTaskMemory prototype (linked to static allocation support) */
void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint32_t *pulIdleTaskStackSize );/* USER CODE BEGIN GET_IDLE_TASK_MEMORY */
static StaticTask_t xIdleTaskTCBBuffer;
static StackType_t xIdleStack[configMINIMAL_STACK_SIZE];void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint32_t *pulIdleTaskStackSize )
{*ppxIdleTaskTCBBuffer = &xIdleTaskTCBBuffer;*ppxIdleTaskStackBuffer = &xIdleStack[0];*pulIdleTaskStackSize = configMINIMAL_STACK_SIZE;/* place for user code */
}
/* USER CODE END GET_IDLE_TASK_MEMORY *//*** @brief  FreeRTOS initialization* @param  None* @retval None*/
void MX_FREERTOS_Init(void) {/* USER CODE BEGIN Init *//* USER CODE END Init *//* USER CODE BEGIN RTOS_MUTEX *//* add mutexes, ... *//* USER CODE END RTOS_MUTEX *//* USER CODE BEGIN RTOS_SEMAPHORES *//* add semaphores, ... *//* USER CODE END RTOS_SEMAPHORES *//* USER CODE BEGIN RTOS_TIMERS *//* start timers, add new ones, ... *//* USER CODE END RTOS_TIMERS *//* USER CODE BEGIN RTOS_QUEUES *//* add queues, ... *//* USER CODE END RTOS_QUEUES *//* Create the thread(s) *//* definition and creation of taskLED1 */osThreadDef(taskLED1, StartTaskLED1, osPriorityNormal, 0, 128);taskLED1Handle = osThreadCreate(osThread(taskLED1), NULL);/* definition and creation of taskLED2 */osThreadDef(taskLED2, StartTaskLED2, osPriorityNormal, 0, 128);taskLED2Handle = osThreadCreate(osThread(taskLED2), NULL);/* definition and creation of taskKEY1 */osThreadDef(taskKEY1, StartTaskKEY1, osPriorityNormal, 0, 128);taskKEY1Handle = osThreadCreate(osThread(taskKEY1), NULL);/* definition and creation of taskKEY2 */osThreadDef(taskKEY2, StartTaskKEY2, osPriorityNormal, 0, 128);taskKEY2Handle = osThreadCreate(osThread(taskKEY2), NULL);/* USER CODE BEGIN RTOS_THREADS *//* add threads, ... *//* USER CODE END RTOS_THREADS */}/* USER CODE BEGIN Header_StartTaskLED1 */
/*** @brief  Function implementing the taskLED1 thread.* @param  argument: Not used* @retval None*/
/* USER CODE END Header_StartTaskLED1 */
void StartTaskLED1(void const * argument)
{/* USER CODE BEGIN StartTaskLED1 *//* Infinite loop */for(;;){osDelay(1);}/* USER CODE END StartTaskLED1 */
}/* USER CODE BEGIN Header_StartTaskLED2 */
/**
* @brief Function implementing the taskLED2 thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartTaskLED2 */
void StartTaskLED2(void const * argument)
{/* USER CODE BEGIN StartTaskLED2 *//* Infinite loop */for(;;){osDelay(1);}/* USER CODE END StartTaskLED2 */
}/* USER CODE BEGIN Header_StartTaskKEY1 */
/**
* @brief Function implementing the taskKEY1 thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartTaskKEY1 */
void StartTaskKEY1(void const * argument)
{/* USER CODE BEGIN StartTaskKEY1 *//* Infinite loop */for(;;){if(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_0) == GPIO_PIN_RESET){osDelay(10);if(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_0) == GPIO_PIN_RESET){printf("KEY1按下！\r\n");if(taskLED1Handle==NULL){printf("任务1不存在，准备创建任务1!\r\n");osThreadDef(taskLED1, StartTaskLED1, osPriorityNormal, 0, 128);taskLED1Handle = osThreadCreate(osThread(taskLED1), NULL);if(taskLED1Handle!=NULL){printf("任务1创建完成!\r\n");}else{printf("删除任务1!\r\n");osThreadTerminate(taskLED1Handle);taskLED1Handle=NULL;}}}while(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_0) == GPIO_PIN_RESET);}osDelay(10);}/* USER CODE END StartTaskKEY1 */
}/* USER CODE BEGIN Header_StartTaskKEY2 */
/**
* @brief Function implementing the taskKEY2 thread.
* @param argument: Not used
* @retval None
*/
/* USER CODE END Header_StartTaskKEY2 */
void StartTaskKEY2(void const * argument)
{/* USER CODE BEGIN StartTaskKEY2 */static int flag=0;/* Infinite loop */for(;;){if(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_1) == GPIO_PIN_RESET){osDelay(10);if(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_1) == GPIO_PIN_RESET){printf("KEY2按下！\r\n");if(flag==0){osThreadSuspend(taskLED2Handle);printf("任务2已挂起！\r\n");flag=1;}else{osThreadResume(taskLED2Handle);printf("任务2已恢复！\r\n");flag=0;}}while(HAL_GPIO_ReadPin(GPIOA,GPIO_PIN_1) == GPIO_PIN_RESET);}osDelay(10);}/* USER CODE END StartTaskKEY2 */
}/* Private application code --------------------------------------------------*/
/* USER CODE BEGIN Application *//* USER CODE END Application */