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#include<reg52.h>
#include"1602.h"
#include"ds18b20.h"
#define uint unsigned int
#define uchar unsigned char
sbit speaker=P1^5; //定義蜂鳴器
sbit red=P2^0; //定義報警燈
//sbit green=P2^1;
sbit key1=P3^0; //定義溫度按鍵
sbit key2=P3^1; //定義時間按鍵
uint tem; //定義采集溫度
int htem,time; //定義溫度、時間
int cnt1=1,cnt2=1; //定義計數變量
int min,i;
uchar mode=0; //定義模式變量
uchar code t3[]={"high temp: C"};
uchar code t4[]={"time: MIN"};
//延時函數
void delay1(uint i)
{
while(i--);
}
//顯示函數1
void display(uint dat,uchar add)
{
uchar bai,shi ,ge;
bai=dat/100;
shi=dat%100/10;
ge=dat%10;
writelcd_cmd(add);
writelcd_dat(bai+0x30);
writelcd_dat(shi+0x30);
writelcd_cmd(add+3);
writelcd_dat(ge+0x30);
}
//顯示函數2
void display2(uint dat,uchar add)
{
uchar bai,shi ;
bai=dat/100;
shi=dat%100/10;
//ge=dat%10;
writelcd_cmd(add);
writelcd_dat(shi+0x30);
writelcd_dat(bai+0x30);
writelcd_cmd(add+3);
//writelcd_dat(ge+0x30);
}
//顯示函數3
void display3(uint dat,uchar add)
{
uchar ge;
//bai=dat/100;
//shi=dat%100/10;
ge=dat%10;
writelcd_cmd(add);
//writelcd_dat(shi+0x30);
//writelcd_dat(bai+0x30);
//writelcd_cmd(add+3);
writelcd_dat(ge+0x30);
}
//按鍵掃描函數
void keyscan()
{ uchar i,j;
writelcd_cmd(0x80);
for(i=0;i<16;i++)
{writelcd_dat(t3[i]);}
writelcd_cmd(0xc0);
for(j=0;j<16;j++)
{writelcd_dat(t4[j]);}
while(mode!=0)
{
display2(htem,0x8b);
display3(time,0xca);
while(mode!=0)
{
switch(mode)
{
case 1:writelcd_cmd(0xc0+10);writelcd_cmd(0x0f);break;
case 2:writelcd_cmd(0x80+11);writelcd_cmd(0x0f);break;
default:mode=0;break;
}
if(key1==0&&mode==1)
{
delay(50);
if(key1==0)
{
cnt1++;
while(key1==0);
switch(cnt1%10)
{
case 1:time=1;min=1000;display3(time,0xca);writelcd_cmd(0xca+11);break; //1分鐘
case 2:time=2;min=2000;display3(time,0xca);writelcd_cmd(0xca+11);break; //2分鐘
case 3:time=3;min=3000;display3(time,0xca);writelcd_cmd(0xca+11);break; //3分鐘
case 4:time=4;min=4000;display3(time,0xca);writelcd_cmd(0xca+11);break; //4分鐘
case 5:time=5;min=5000;display3(time,0xca);writelcd_cmd(0xca+11);break; //5分鐘
case 6:time=6;min=6000;display3(time,0xca);writelcd_cmd(0xca+11);break; //6分鐘
case 7:time=7;min=7000;display3(time,0xca);writelcd_cmd(0xca+11);break; //7分鐘
case 8:time=8;min=8000;display3(time,0xca);writelcd_cmd(0xca+11);break; //8分鐘
case 9:time=9;min=9000;display3(time,0xca);writelcd_cmd(0xca+11);break; //9分鐘
default:break;
}
}
}
if(key2==0&&mode==2)
{
delay(10);
if(key2==0)
{
cnt2++;
while(key2==0);
switch(cnt2%4)
{
case 1:htem=20;display2(htem,0x8b);writelcd_cmd(0x80+11);break; //20攝氏度
case 2:htem=50;display2(htem,0x8b);writelcd_cmd(0x80+11);break; //50攝氏度
case 3:htem=80;display2(htem,0x8b);writelcd_cmd(0x80+11);break; //80攝氏度
default:break;
}
}
}
}
}
lcd_init();
}
//中斷初始化函數
void init()
{
lcd_init(); //lcd初始化
speaker=1;
red=0;
mode=0;
htem=20;
time=1;
EA=1; //總中斷開啟
EX0=1; //外部中斷0允許
ET0=1; //定時器0允許
TMOD=0X01; //定時中斷0，模式1
IT0=1; //下降沿觸發
TH0=0Xee; //0.5us
TL0=0X00;
//TR0=0;
}
//主函數
void main()
{
red=0;
init(); //中斷初始化
while(1)
{
if(mode!=0)
{keyscan();}
else if(mode==0)
{
delay(100);
tmpchange();
tem=tmp(); //溫度值獲取
if(tem>=(htem*10)) //高于設定溫度
{
TR0=1; //中斷開啟
red=1; //報警燈亮
}
else //低于設定溫度
{
TR0=0; //中斷關閉
red=0; //報警燈滅
}
delay(10);
display(tem,0xca);
delay(100);
TR0=0;
}
}
}
//外部中斷服務函數
void exter()interrupt 0
{
delay(50); //按鍵消抖
if(P3^2==0)
mode++;
mode=mode%4 ; //每按4次置0
}
//定時中斷服務函數
void timer0()interrupt 1
{
TH0=0Xee; //重裝載
TL0=0X00;
min--;
if(min<=0) //計時時間到
{
red=1; //報警燈閃爍
delay(200);
speaker=~speaker;delay1(1); //蜂鳴器報警
TR0=0; //定時中斷關閉
}
}

復制代碼

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