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#include<reg51.h>
#include<intrins.h> //包含頭文件
#define uchar unsigned char
#define uint unsigned int //宏定義
#include "eeprom52.h"
////////////////////
sbit dj=P1^0;
sbit dq=P1^1;
sbit DQ=P1^6;
sbit bj=P1^7;
//////////按鍵接口/////////////////////////////////
sbit key1=P3^5;//
sbit key2=P3^6;//
sbit key3=P3^7;//
//////////////////////////////////////////////////////
sbit w1=P2^4;
sbit w2=P2^5;
sbit w3=P2^6;
sbit w4=P2^7; //
/////共陰數(shù)碼管段選//////////////////////////////////////////////
uchar table[22]=
{0x3F,0x06,0x5B,0x4F,0x66,
0x6D,0x7D,0x07,0x7F,0x6F,
0x77,0x7C,0x39,0x5E,0x79,0x71,
0x40,0x38,0x76,0x00,0xff,0x37};//'-',
uint wen_du;
uint shang,xia; //
uchar dang;//
uchar flag;
uchar d1,d2,d3;//
uchar m;
uchar js;
/******************把數(shù)據(jù)保存到單片機(jī)內(nèi)部eeprom中******************/
void write_eeprom()
{
SectorErase(0x2000);
byte_write(0x2000, shang);
byte_write(0x2001, xia);
byte_write(0x2060, a_a);
}
/******************把數(shù)據(jù)從單片機(jī)內(nèi)部eeprom中讀出來*****************/
void read_eeprom()
{
shang = byte_read(0x2000);
xia = byte_read(0x2001);
a_a = byte_read(0x2060);
}
/**************開機(jī)自檢eeprom初始化*****************/
void init_eeprom()
{
read_eeprom();
if(a_a != 1)
{
shang = 30;
xia = 20;
a_a = 1;
write_eeprom();
}
}
void delay(uint ms) //延時(shí)函數(shù)，大約延時(shí)1ms
{
uchar x;
for(ms;ms>0;ms--)
for(x=121;x>0;x--);
}
/***********ds18b20延遲子函數(shù)（晶振12MHz ）*******/
void delay_18B20(uint i)
{
while(i--);
}
/**********ds18b20初始化函數(shù)**********************/
void Init_DS18B20()
{
uchar x=0;
DQ=1;
delay_18B20(8);
DQ=0;
delay_18B20(80);
DQ=1;
delay_18B20(14);
x=DQ;
delay_18B20(20);
}
/***********ds18b20讀一個(gè)字節(jié)**************/
uchar ReadOneChar()
{
uchar i=0;
uchar dat=0;
for (i=8;i>0;i--)
{
DQ=0; //
dat>>=1;
DQ=1; //
if(DQ)
dat|=0x80;
delay_18B20(4);
}
return(dat);
}
/*************ds18b20寫一個(gè)字節(jié)****************/
void WriteOneChar(uchar dat)
{
uchar i=0;
for (i=8;i>0;i--)
{
DQ=0;
DQ=dat&0x01;
delay_18B20(5);
DQ=1;
dat>>=1;
}
}
/**************讀取ds18b20當(dāng)前溫度************/
void ReadTemperature()
{
uchar a=0;
uchar b=0;
uchar t=0;
Init_DS18B20();
WriteOneChar(0xCC);
WriteOneChar(0x44);
delay_18B20(100);
Init_DS18B20();
WriteOneChar(0xCC);
WriteOneChar(0xBE);
delay_18B20(100);
a=ReadOneChar();
b=ReadOneChar();
wen_du=((b*256+a)>>4);
}
void zi_keyscan()
{
if(key1==0)
{
delay(80);
if(key1==0)
{
flag=1;
while(key1==0);
}
}
while(flag==1)
{
d1=18;d2=shang/10;d3=shang%10;
if(key1==0)
{
delay(80);
if(key1==0)
{
flag=2;
while(key1==0);
}
}
if(key2==0)
{
delay(80);
if(key2==0)
{
shang+=1;
if(shang>=100)shang=100;
while(key2==0);
}
}
if(key3==0)
{
delay(80);
if(key3==0)
{
shang-=1;
if(shang<=10)shang=10;
while(key3==0);
}
}
}
while(flag==2)
{
d1=17;d2=xia/10;d3=xia%10;
if(key1==0)
{
delay(80);
if(key1==0)
{
flag=0;
while(key1==0);
write_eeprom();
}
}
if(key2==0)
{
delay(80);
if(key2==0)
{
xia+=1;
if(xia>=99)xia=99;
while(key2==0);
}
}
if(key3==0)
{
delay(80);
if(key3==0)
{
xia-=1;
if(xia<=0)xia=0;
while(key3==0);
}
}
}
}
void init()
{
TMOD=0x01;
TH0=0xf8;
TL0=0x30;
ET0=1;
TR0=1;
EA=1;
}
void zi_dong()
{
d1=dang;d2=wen_du/10;d3=wen_du%10;
zi_keyscan();
if(wen_du<xia){dang=0;}_du>=xia)&&(wen_du<=shang))
{dang=1;}
if(wen_du>shang){dang=2;}}
void main() //主函數(shù)
{
uchar j;
dj=0;
shang=30；
xia=20;
init_eeprom();
for(j=0;j<80;j++)
ReadTemperature();
init();
while(1)
{
if(js>=50)
{
ReadTemperature();
js=0;
}
zi_dong();}
}
void T0_TIME() interrupt 1
{
TH0=0xf8;
TL0=0x30;
m++; switch(dang)
{
case 0:dj=0;break;
case 1:if(m<=3)dj=1;else dj=0;break;
case 2:dj=1;break;
default:;
}
switch(m)
{
case 1:
w4=1;P0=~table[d1];w1=0; break;
case 2:
w1=1;P0=~table[16];w2=0; break;
case 3:
w2=1;P0=~table[d2];w3=0; break;
case 4:
w3=1;P0=~table[d3];w4=0;m=0;if(js<50)js++;break; //
default:;
}
if(m>4) {
m=0;
}
}

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