/*
 * Timer0.c
 *
 *  Created on: 2022年03月15日
 *      Author: User
 */

/* Includes ------------------------------------------------------------------*/
#include <main.h>

/* Private define-------------------------------------------------------------*/

/* Private variables----------------------------------------------------------*/

/* Private function prototypes------------------------------------------------*/
static void Timer0_Init(void); //定时器0初始化

/* Public variables-----------------------------------------------------------*/
Timer0_t Timer0 =
	{
		0,
		Timer0_Init};

/*
 * @name   Timer0_Init
 * @brief  定时器0初始化
 * @param  None
 * @retval None
 */
static void Timer0_Init() // 5微秒@20.000MHz
{
	AUXR |= 0x80; //定时器时钟1T模式
	TMOD &= 0xF0; //设置定时器模式
	TL0 = 0x9C;	  //设置定时初始值
	TH0 = 0xFF;	  //设置定时初始值
	TF0 = 0;	  //清除TF0标志
	TR0 = 1;	  //定时器0开始计时
	ET0 = 1;	  //打开定时器0中断
	EA = 1;		  //打开总中断
}

/*
 * @name   Timer0_isr()
 * @brief  定时器0中断函数(5us中断一次)
 * @param  None
 * @retval None
 */
/***********定时器0中断函数***********/
void Timer0_isr() interrupt 1
{
	if (PWM.High == Timer0.usMCU_Run_Timer)
	{
		FAN_PWM_PIN = LOW;
	}
	Timer0.usMCU_Run_Timer++;
	if (Timer0.usMCU_Run_Timer >= TIMER0_500uS)
	{
		if (PWM.High != 0)
		{
			FAN_PWM_PIN = HIGH;
		}
		else
		{
			FAN_PWM_PIN = LOW;
		}
		Timer0.usMCU_Run_Timer = 0;
	}
}
/********************************************************
  End Of File
********************************************************/