宿舍电话号码.c

本文件包含了使用C语言编写单片机的各种入门程序

#include <reg51.h>
#include <stdio.h>
//-------------------------------------------
sbit sda=P0^1;
sbit scl=P0^0;
//------------------------------------------------
code char led[]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0x11,0xD3,0xD3,0X92,0xfe,0x98,0x10,0x98,0xD4,
0x32,0x11,0xD4,0xff,0xff};
//================================================ 
code char led0[11]={0x11,0xd7,0x32,0x92,0xd4,0x98,
0x18,0xd3,0x10,0x90,0xff};
//================================================
//-------------------------------------------
int i,j,k,num,tub,a,b,c,count,d;
//---------------------------------------------
display()
{
b=count;
shift();    
b=count;
shift();   
b=16;
shift();   
b=count;
shift();   
b=count;
shift();   
b=16;    
shift();  
b=count;
shift();  
b=count;
shift();  
}
delay()
{for(i=0;i<=400;i++)
for (j=0;j<=125;j++)
{;}
}
//--------------------------------------------
shift1()
{num=led[d];
scl=0;
for(a=0;a<8;a++)
{
tub=num&0x80;
tub=tub>>7;
sda=tub;
scl=1;
num=num<<1;
scl=0;
}
}
//----------------------------------------------
shift()
{num=led0[b];
scl=0;
for(i=0;i<8;i++)
{
tub=num&0x80;
tub=tub>>7;
sda=tub;
scl=1;
num=num<<1;
scl=0;
}
}
//------------------------------
main()
{while(1)
 {for(count=0;count<10;count++)
 {delay();
 display();}

for(d=20;d>0;d--)
{shift1();
delay();}
}
}