[嵌入式]FreeRTOS使用软件定时器

通过创建软件定时器实现500ms中断，执行x次后停止并删除定时器。
宏：

//RTOS系统节拍中断的频率。即一秒中断的次数，每次中断RTOS都会进行任务调度
#define configTICK_RATE_HZ						  (( TickType_t )1000)
//支持动态内存申请
#define configSUPPORT_DYNAMIC_ALLOCATION        1 
 //启用软件定时器
#define configUSE_TIMERS				            1 

main.c

#include "AppTask.h"

static void BSP_Init(void)
{
	NVIC_PriorityGroupConfig(NVIC_PriorityGroup_4);//优先级0-15
	LED_GPIO_Config();
	USART_Config();
}

int main(void)
{
	BaseType_t xReturn  = pdPASS;

	BSP_Init();
	xReturn = xTaskCreate((TaskFunction_t) (AppCreate_Task),
						 (const char*)	"AppCreate_Task",
						 (uint16_t) 	512, 
						 (void*)		NULL,
						(UBaseType_t) 	1,
						(TaskHandle_t) 	(&AppCreateTask_Handle));
	if(xReturn == pdPASS)
	{
		printf("AppCreate_Task Create Succeed!\r\n");
		vTaskStartScheduler();//启动任务调度
	}
	else{printf("AppCreate_Task Create Fail!\r\n");}
	while(1);
}

AppTask.h

#ifndef _AppTask_H_
#define _AppTask_H_
#include "FreeRTOS.h"
#include "task.h"
#include "queue.h"
#include "semphr.h"
#include "event_groups.h"
#include "timers.h"
#include "bsp_led.h"
#include "bsp_usart.h"

extern TaskHandle_t AppCreateTask_Handle;
extern void AppCreate_Task(void* parameter);

#endif

AppTask.c**

#include "AppTask.h"

TaskHandle_t AppCreateTask_Handle = NULL;
static TimerHandle_t Timer_Handle = NULL;

static void Timer_Callback(void* parameter);
/**************************************
 * function:创建App任务函数
 * parameter：void*
 * return:void
 * date:2022.3.21
 * note:
 * ***********************************/
void AppCreate_Task(void* parameter)
{
    taskENTER_CRITICAL();

    Timer_Handle = xTimerCreate((const char*)"Timer",\
                    (TickType_t) 500,\
                    (UBaseType_t) pdTRUE,\
                    (void*) 1,\
                    (TimerCallbackFunction_t) Timer_Callback);
    xTimerStart(Timer_Handle,0);

    vTaskDelete(AppCreateTask_Handle);
    taskEXIT_CRITICAL();
}

static void Timer_Callback(void* parameter)
{
    static int i = 0;
    TickType_t tick_num2;

    LED1_TOGGLE;
    tick_num2 = xTaskGetTickCount();  /*  获取滴答定时器的计数值 */
    printf("Timer Run...%d\r\n",tick_num2);
    i++;
    if(i > 5)
    {
        xTimerStop(Timer_Handle,0);
        xTimerDelete(Timer_Handle,0);
        printf("删除定时器");
    }
}

演示现象：