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#include <reg52.h>
#include<intrins.h> //調用_nop_()；延時函數(shù)用 4ns
#define uint unsigned int
#define uchar unsigned char
#define def P3 //0809數(shù)據(jù)端口
#define suji P0//數(shù)碼管數(shù)據(jù)端口
#define l 17 //宏定義
#define h 18
sbit k1=P1^0; //四個按鍵定義中的，模式切換
sbit k2=P1^1; //數(shù)字加
sbit k3=P1^2; //數(shù)字減
sbit k4=P1^3; //保留
sbit s1=P2^3; //數(shù)碼管第一位控制端口
sbit s2=P2^2;
sbit s3=P2^1;
sbit s4=P2^0;
sbit z1=P2^4; //蜂鳴器報警端口
sbit d1=P1^5; //電機驅動端口
sbit st=P1^4; //abc轉換芯片控制端口
sbit eoc=P2^7;
sbit oe=P2^6;
sbit CLOCK=P2^5;
uint as=115,as1=70; //高水位變亮/低水位變亮
uchar q[4]; //定義顯示函數(shù)
unsigned char q1[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00,0x38,0x76};
void delay(uint z)//延時函數(shù)
{while(z--);}
unsigned char adc0809()
{ unsigned char date;
st=0;//ADC0809初始化
st=1;
_nop_();_nop_();
st=0;
_nop_();_nop_(); _nop_();
while(eoc==0);//等待轉換完成
oe=1;
date=def;//p2選擇為ADC的數(shù)據(jù)口
oe=0;
return date;
}
void a1() //數(shù)碼管動態(tài)掃描
{
s1=0;s2=s3=s4=1;
suji=q1[q[0]];
delay(20);
suji=0x00;s1=s2=s3=s4=1;
s2=0;s1=s3=s4=1;
suji=q1[q[1]];
delay(20);
suji=0x00;s1=s2=s3=s4=1;
s3=0;s2=s1=s4=1;
suji=q1[q[2]];
delay(20);
suji=0x00;s1=s2=s3=s4=1;
s4=0;s2=s3=s1=1;
suji=q1[q[3]];
delay(20);
suji=0x00;s1=s2=s3=s4=1;
}
void a2() //按鍵子程序
{ uint i1;
if(k1==0)
{delay(20);
i1++;while(k1==0);
while(1)
{
if(i1==1)
{q[0]=h;
if(k2==0){delay(20);as=as+5;if(as>=150)as=120;while(!k2);}
if(k3==0){delay(20);as=as-5;if(as<=15)as=5;while(!k3);}
q[1]=as/100;
q[2]=as%100/10;
q[3]=as%10;a1();
}
if(i1==2)
{q[0]=l;
if(k2==0){delay(20);as1=as1+5;if(as1>=140)as1=120;while(!k2);}
if(k3==0){delay(20);as1=as1-5;if(as1<=15)as1=5;while(!k3);}
q[1]=as1/100;
q[2]=as1%100/10;
q[3]=as1%10;a1();
}
a1();
if(k1==0){delay(20);if(i1==2)i1=0;while(!k1);break;}
}
}
}
void main()
{ uchar x;
uint i1;
TMOD=0x02;//選擇定時器工作方式2
TH0=254;
TL0=254;//定時2us，為ADC0809提供500Khz的工作頻率
TR0=1;
ET0=1;
EA=1;
oe=0;
// d1=0;
k1=k2=k3=k4=1;
while(1)
{
a1();
x=adc0809();
x=210-x;
q[0]=16; //210/100=2 10/10=1;
q[1]=x/100;
q[2]=x%100/10;
q[3]=x%10;
if(as<x){d1=z1=1;i1=0;}
else if(i1==0){if(as1>x){i1=1;d1=z1=0;}}
a2();
}
}
void int1(void )interrupt 1//定時器中斷
{
CLOCK=~CLOCK;
}

復制代碼

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