电子时钟.c

时钟计时器

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

sbit L1=P2^0;sbit L2=P2^1;

uchar s=0,m=0,n=0,h=0,k=0,y=0,u=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)
    { 
	   
	  P1=table[m];P2=0x3e;delay(20);
	  P2=0x3f;
	  P1=table[n];P2=0x3d;delay(20);
	  P2=0x3f;
      P1=table[h];P2=0x3b;delay(20);
      P2=0x3f;
      P1=table[k];P2=0x37;delay(20);
      P2=0x3f;
	  P1=table[y];P2=0x2f;delay(20);
      P2=0x3f;
	  P1=table[u];P2=0x1f;delay(20);
      P2=0x3f;
	  if(u==2&y==4)
	   {
	     m=0;n=0;h=0;k=0;y=0;u=0;
	   }
    }
  
	
}



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;
             if(n==6)
	          {
		         h++;n=0;
				 if(h==10)
				  {
				    k++,h=0;
                      if(k==6)
					    {
						  y++,k=0;
						    if(y==10)
                              {
							    u++,y=0;
								  
							  } 
						}
				  }
		      }
                 
	     }
   }



}