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#include<reg51.h>
#include"lcd.h"
sbit L1=P2^0;
sbit L2=P2^1;
sbit L3=P2^2;
sbit L4=P2^3;
sbit L5=P2^4;
sbit L6=P2^5;
sbit L7=P2^6;
sbit L8=P2^7;
sbit K1=P3^2;
sbit LED1=P3^0;
sbit LED2=P3^1;
unsigned char waiting[]=" Waiting... ";
unsigned char start[]=" Press start ";
unsigned char Pass[]="Wire test Pass! ";
unsigned char short1[]="Wire test Short!";
unsigned char open[]="Wire test Open! ";
unsigned char state=5;
unsigned char short_value=0;
unsigned char open_value=0;
void IntConfiguration();
void Delay(unsigned int n);
void TimerConfiguration();
unsigned char Time;
void main(void)
{
unsigned char i;
IntConfiguration();
TimerConfiguration();
LcdInit();
LED1=1;
LED2=1;
P0=0xff;
P2=0xff;
while(1)
{
if(state==5)
{
LcdWriteCom(0x80);
for(i=0;i<16;i++)
{
LcdWriteData(start[i]);
}
}
if(state==0)
{
P0=0xff;
P2=0xff;
LcdWriteCom(0x80);
for(i=0;i<16;i++)
{
LcdWriteData(waiting[i]);
}
}
while(state==0)
{
P2=0xfe;
if(L2==0){short_value=12;state=4;}
if(L3==0){short_value=13;state=4;}
if(L4==0){short_value=14;state=4;}
if(L5==0){short_value=15;state=4;}
if(L6==0){short_value=16;state=4;}
if(L7==0){short_value=17;state=4;}
if(L8==0){short_value=18;state=4;}
if(state==4)
break;
P2=0xfd;
if(L3==0){short_value=23;state=4;}
if(L4==0){short_value=24;state=4;}
if(L5==0){short_value=25;state=4;}
if(L6==0){short_value=26;state=4;}
if(L7==0){short_value=27;state=4;}
if(L8==0){short_value=28;state=4;}
if(state!=0)
break;
P2=0xfb;
if(L4==0){short_value=34;state=4;}
if(L5==0){short_value=35;state=4;}
if(L6==0){short_value=36;state=4;}
if(L7==0){short_value=37;state=4;}
if(L8==0){short_value=38;state=4;}
if(state!=0)
break;
P2=0xf7;
if(L5==0){short_value=45;state=4;}
if(L6==0){short_value=46;state=4;}
if(L7==0){short_value=47;state=4;}
if(L8==0){short_value=48;state=4;}
if(state!=0)
break;
P2=0xef;
if(L6==0){short_value=56;state=4;}
if(L7==0){short_value=57;state=4;}
if(L8==0){short_value=58;state=4;}
if(state!=0)
break;
P2=0xdf;
if(L7==0){short_value=67;state=4;}
if(L8==0){short_value=68;state=4;}
if(state!=0)
break;
P2=0xbf;
if(L8==0){short_value=78;state=4;}
if(state!=0)
break;
state=1;
if(state!=0)
break;
}
while(state==1)
{
P0=0x00;
if(P2==0x00)
{
LED1=0;ET0 = 0;TR0 = 0;LED2=1;
LcdWriteCom(0x80);
for(i=0;i<16;i++)
{
LcdWriteData(Pass[i]);
}
LcdWriteCom(0xc0);
for(i=0;i<16;i++)
{
LcdWriteData(' ');
}
while(1)
{
if(state!=1)
break;
}
}
else
{
P0=0xfe;
if(L1!=0){open_value=1;state=3;}
P0=0xfd;
if(L2!=0){open_value=2;state=3;}
P0=0xfb;
if(L3!=0){open_value=3;state=3;}
P0=0xf7;
if(L4!=0){open_value=4;state=3;}
P0=0xef;
if(L5!=0){open_value=5;state=3;}
P0=0xdf;
if(L6!=0){open_value=6;state=3;}
P0=0xbf;
if(L7!=0){open_value=7;state=3;}
P0=0x7f;
if(L8!=0){open_value=8;state=3;}
}
if(state!=1)
break;
}
while(state==3)
{
LED1=1;ET0 = 1;TR0 = 1;
LcdWriteCom(0x80);
for(i=0;i<16;i++)
{
LcdWriteData(open[i]);
}
LcdWriteCom(0xc0+5);
LcdWriteData('0'+open_value%10);
LcdWriteData('-');
LcdWriteData('-');
LcdWriteData('0'+open_value%10);
}
while(state==4)
{
LED1=1;ET0 = 1;TR0 = 1;
LcdWriteCom(0x80);
for(i=0;i<16;i++)
{
LcdWriteData(short1[i]);
}
LcdWriteCom(0xc0+5);
LcdWriteData('0'+short_value/10);
LcdWriteData('-');
LcdWriteData('-');
LcdWriteData('0'+short_value%10);
}
}
}
void IntConfiguration()
{
IT0=1;
EX0=1;
EA=1;
}
void Delay(unsigned int n)
{
unsigned char a,b;
for(;n>0;n--)
{
for(b=1;b>0;b--)
for(a=22;a>0;a--);
}
}
void Int0() interrupt 0
{
Delay(1);
if(K1==0)
state=0;
}
void TimerConfiguration()
……………………
…………限于本文篇幅余下代碼請從51黑下載附件…………

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