text1.c

这是我以前做过的51单片机实验代码

#include <reg51.h>
#include <stdio.h>

int wc = 0;
sbit p20=P0^0;
sbit p21=P0^1;
sbit p10=P1^0;
sbit p11=P1^1;
void delay(unsigned int x)
{
while(x--);
}

void main()
{
P2=0x00; 
 while(1)
 {
P1=0x00;
while(1)
{
if(p20) p10=1;
if(p21) p11=1;
}

/*if(p20==0)
{
P1=0xff;
}
else
{
P1=0x00;
} */

 
/*if(p20==0)
 {
 if(P1)
 {P1 = 0;
 printf("OFF\n");
 }
 else 
 {P1 =255;
  printf("ON\n");
 }
 delay(20000);
 }

 
}
}
	
	P1= 0x00;
	TMOD = 0x01;
	TH0 = 0x3C;
	TL0 = 0xAF;
	ET0 = 1;

	TR0 = 1;
	while(1)
	{  
	if(wc==20)
		{
			wc = 0;
        P1=0xff-P1;
         } 
			  
}*/
}
}	    

void breaker1() interrupt	1
{			   
  	wc++;  
	TH0 = 0x3C;
	TL0 = 0xAF;
}