text1.c

来自「单片机写的程序都含有Protues仿真结果」· C语言 代码 · 共 43 行

#include<reg51.h>
#define uint unsigned int
#define uchar unsigned char
uchar SG1[]={0x00,0x10,0x20,0x30,0x40,0x50};   
uchar SG2[]={0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,0x08,0x09};
uchar a,b,c=0,count,sec=0;
uchar buf[2];


void main()
{
	 TMOD=0x01;
	 TH0=(65536-10000)/256;
	 TL0=(65536-10000)%256;
	 TR0=1;
	 ET0=1;
	 EA=1;
	 while(1)
	  { buf[0]=sec%10;
        buf[1]=sec/10; }
}


void timer0() interrupt 1
{ 	TH0=(65536-10000)/256;
       TL0=(65536-10000)%256;

P1=SG1[a]|buf[a];
  a++; 
 if(a==2)
 {a=0;}

	count++;
    if(count>=100)			//一秒到
	{
		count=0;
		sec++;
		if(sec>=99) 
			sec=0;
	}  
	   
	   
}