STM32定时器实现毫秒/秒级任务框架-编程知识

STM32定时器实现毫秒/秒级任务框架

CubeMX配置
代码分享
总结

这是一期代码思路分，通过定时器（以定时器10为例）实现规定时间间隔执行指定任务。。。。。。

CubeMX配置

在这里插入图片描述

关于定时器的配置，这里不做介绍，不懂的可以看：夜深人静学32系列14——基本定时器

代码分享

main.c

void Proc2msTask(void)        //2ms任务
{if(Get_2ms_Flag() == 1)     //获取2ms标志位{Clear_2ms_Flag();      //清除2ms标志位//2mstask code}
}void Proc1sTask(void)       //1s任务
{if(Get_1s_Flag() == 1)     //获取1s标志位{Clear_1s_Flag();         //清除1s标志位//1stask code}      
}
/* USER CODE END PFP *//* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 *//* 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 clock */SystemClock_Config();/* USER CODE BEGIN SysInit *//* USER CODE END SysInit *//* Initialize all configured peripherals */MX_GPIO_Init();MX_TIM10_Init();/* USER CODE BEGIN 2 */
HAL_TIM_Base_Start_IT(&htim10);/* USER CODE END 2 *//* Infinite loop *//* USER CODE BEGIN WHILE */while (1){Proc2msTask();       //调用2ms任务Proc1sTask();        //调用1s任务/* USER CODE END WHILE *//* USER CODE BEGIN 3 */}/* USER CODE END 3 */
}

Tim.c

static uint16_t Tim10_Count=0;
static uint8_t Tim10_2msFlag=0;
static uint8_t Tim10_1sFlag=0;uint8_t  Get_2ms_Flag(void)         //获取2ms标志位
{return Tim10_2msFlag;
}uint8_t Get_1s_Flag(void)           //获取1s标志位
{return Tim10_1sFlag;
}void Clear_2ms_Flag(void)           //清除2ms标志位
{Tim10_2msFlag = 0;
}void Clear_1s_Flag(void)           //清除1s标志位
{Tim10_1sFlag = 0;
}
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef* tim_baseHandle)        // 定时器溢出中断函数
{Tim10_Count++;if(tim_baseHandle->Instance == TIM10)                                   //判断是否为定时器10中断{HAL_TIM_Base_Start_IT(&htim10);                                     //开启定时器中断if(Tim10_Count%2==0)                                               //判断是否到达2ms{Tim10_2msFlag = 1; }                                                                   //判断是否到达1sif(Tim10_Count == 1000){Tim10_1sFlag = 1;Tim10_Count = 0;}}}