[嵌入式]裸机系统下时间片调用

#include "stm32f10x.h"
#include "wkup.h"
#include "key.h"
#include "led.h"
#include "uart.h"
#include "time6.h"
#include "queue.h"
void task1()
{
	printf("task1");
}
void task2()
{
	printf("task2");
}
void task3()
{
	printf("task3");
}
void task4()
{
	printf("task4");
}



u16 task_delay[] = {100,200,300,400};//任务运行时间，也可作为首次执行时间
u16 task_reload_time[] = {100,200,300,400};//任务重装载时间
void (*task[])(void) = {task1,task2,task3,task4};//任务函数

void Task_Process()
{
	u8 i = 0;
	for(i  = 0; i < sizeof(task) / sizeof(task[0]); i++)
	{
		if(task_delay[i] == 0)
		{
			task[i]();
			task_delay[i] = task_reload_time[i];
			break;
		}
	}
}


int main(void)
{	 
	
	
	while(1)
	{
		Task_Process();
	}
	
	
	
}

void timer_interrupt(void)
{
	u8 i = 0;
	for(i  = 0; i < sizeof(task_delay) / sizeof(task_delay[0]); i++)
	{
		if(task_delay[i])
		{
			task_delay[i]--;
		}
	}
}