百秒计时器.c

百秒计时器百秒计时器 利用C51编程而来 功能一般

#include<reg51.h>
#define uint unsigned int
#define uchar unsigned char

sbit L1=P0^0;sbit L2=P0^1;

uchar s=0,m=0,n=0;
uchar table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
void delay(uint i)
{
  uint j;
   for(;i<0;i--)
    for(j=110;j<0;j--);
}


void main()
{
  
  EA=1;ET0=1;TMOD=0x01;
  TH0=(65536-10000)/256;
  TL0=(65536-10000)%256;
  TR0=1;
   
     while(1)
    { 
	   
	  P2=table[m];P0=0x02;delay(20);
	  P0=0x03;
	  P2=table[n];P0=0x01;delay(20);
	  P0=0x03;
   
    }
  
	
}

void timer0(void) interrupt 1
{
  TH0=(65536-10000)/256;
  TL0=(65536-10000)%256;
  s++;
  if(s==100)
   {
     m++;s=0;
	 if(m==10)
	  {
	    n++;
        m=0;
	  }
   }



}