tim2.c

来自「51单片机开发板提供的参考程序」· C语言 代码 · 共 45 行

/*copyright 2007,ShangHai  HaoTun Electronic Technology co.,Ltd
 *
 *This sample is used for Timer0 16bit timer mode.
 *
 *write by Shifang 2007-4-26
 *
 *V1.1
 */
#include<reg52.h>


sbit LED=P1^2;


void TIM2Inital(void)
{
  RCAP2H = (65536-60000)/256;//@12M 10ms 16bit 自动重载
  RCAP2L = (65536-60000)%256;
  ET2=1;
  EA=1;
  TR2=1;
}

main()
{
 TIM2Inital();
 while(1);
}

void Timer0_isr(void) interrupt 1 using 1
{
 TH0=0x00;		/* Init value */
 TL0=0x00;

 LED=~LED;//指示灯反相

}
void TIM2(void) interrupt 5 using 1//定时器2中断
{

    TF2=0;
    LED=~LED;//指示灯反相
   
}