#include <reg51.h>
#define uchar unsigned char
#define uint unsigned int
sbit IN1=P1^6;
sbit IN2=P1^7;
sbit ENA=P1^5;
sbit KEY0=P2^0;
sbit KEY1=P2^1;
sbit KEY2=P2^2;
sbit KEY3=P2^3;
sbit KEY4=P2^4;
sbit LEDR=P2^5;
sbit LEDY=P2^6;
sbit LEDG=P2^7;
sbit WE1=P1^0;
sbit WE2=P1^1;
sbit WE3=P1^2;
sbit WE4=P1^3;
sbit led=P1^4;
bit flag=0;
bit sign=1;
uint num=0;
uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
void delay(uint n)
{
uint i,j;
for(i=n;i>0;i--)
for(j=0;j<110;j++);
}
void initia2()
{
IN1=0;
IN2=0;
ENA=0;
num=0;
TMOD=0x01;
TL0=0xf0;
TH0=0xf0;
EA=1;
EX0=1;
ET0=1;
IT0=1;
TR0=1;
}
void display(bit flag,uint n)
{
uint v;
uchar qian,bai,shi,ge;
v=(uint)(n*535.0/255);
qian=v/1000;
bai=(v-1000*qian)/100;
shi=v%100/10;
ge=v%10;
WE1=0;
if(flag==1)
P0=table[0];
else
P0=0x40;
delay(10);
WE1=1;
WE2=0;
P0=table[bai];
delay(10);
WE2=1;
WE3=0;
P0=table[shi];
delay(10);
WE3=1;
WE4=0;
P0=table[ge];
delay(10);
WE4=1;
}
void main()
{
initia2();
while(1)
{
display(sign,num);
}
}
void int0() interrupt 0
{
if(KEY0==0)
{
delay(10);
if(KEY0==0)
{
flag=~flag;
if(flag==0)
{
num=0;
P2=0xff;
ENA=0;
IN1=0;
IN2=0;
LEDG=0;
{
sbit Beep = P1^5 ;
void delay(unsigned int i) ;
void main()
{
Beep= 1;
delay(5);
Beep= 0;
delay(5);
}
void delay(unsigned int i)
{
char j;
for(i; i > 0; i--)
for(j = 200; j > 0; j--);
}
}
sign=1;
}
else
{
P2=0xff;
num=100;
IN1=0;
IN2=1;
LEDR=0;
sign=1;
}
while(!KEY0);
}
}
if(KEY1==0)
{
delay(10);
if(KEY1==0)
{
P2=0xff;
//ENA=1;
IN1=0;
IN2=1;
LEDR=0;
sign=1;
}
while(!KEY1);
}
if(KEY2==0)
{
delay(10);
if(KEY2==0)
{
P2=0xff;
//ENA=1;
IN1=1;
IN2=0;
LEDY=0;
sign=0;
}
while(!KEY2);
}
if(KEY3==0)
{
delay(10);
if(KEY3==0)
{
num+=5;
if(num>=255)
num=255;
}
while(!KEY3);
}
if(KEY4==0)
{
delay(10);
if(KEY4==0)
{
num-=5;
if(num<=0)
num=0;
}
while(!KEY4);
}
}
void itt0() interrupt 1
{
ENA=~ENA;
TL0=0xf0;
TH0 = 0XF0;
led=~led;
if(ENA==1)
TH0=255-num;
else
TH0=num;
}
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