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#include<reg52.h> //調用52單片機庫
#include"1602.h" //調用LCD1602庫
#include"ds18b20.h" //調用ds18b20溫度傳感器
#define uint unsigned int
#define uchar unsigned char
uchar hour,min,sec,count,hour1,hour2, //定義小時分鐘秒對應的十位個位以及 count計數
sec1,sec2,min1,min2;
sbit speaker=P2^1; //定義蜂鳴器
sbit key1=P1^0; //最低溫度設置
sbit key2=P1^1; //最高溫度設置
sbit key3=P1^2; //連接切換模式的備用開關 P33和P12口短接用于切換模式和退出報警中斷
sbit keyh=P1^5; //校時
sbit keym=P1^6; //校分
sbit keys=P1^7; //校秒
//定義時間按鍵
uint tem; //定義采集溫度
int htem,htem2,time,time2,x,y,z,dot,dot2,maxtem,mintem; //定義溫度十位數、個位數、小數，以及其三種模式的標記值
int cnt1=1,cnt2=1,cnt3=1,cnt4=1,cnt5=1,cnt6=1,cnt7=1; //定義計數變量
int i;
uchar mode=0; //定義模式變量
uchar code t3[]={" H/L=0/1: C"}; //顯示調最值溫度的十位
uchar code t4[]={"O/D: C"}; //顯示調最值溫度的個位/小數位字模
uchar code table2[]={
'0','1','2','3','4','5','6','7','8','9',':'}; //顯示時間的字模
uchar code t5[]={"Max . CD"}; //顯示最高溫度的字模
uchar code t6[]={"Min . CD"}; //顯示最低溫度的字模
//延時函數
void delay1(uint i)
{
while(i--);
}
//顯示函數1 初始顯示
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);
}
void lcd_min() //定義最小溫度顯示
{
uchar l;
writelcd_cmd(0x38); //初始化屏那迤粱
delay(5);
writelcd_cmd(0x38);
delay(5);
writelcd_cmd(0x38);
writelcd_cmd(0x08);
writelcd_cmd(0x01);
writelcd_cmd(0x06);
writelcd_cmd(0x0c);
writelcd_cmd(0x80);
writelcd_cmd(0xc0);
for(l=0;l<16;l++) //依次讀取t6并顯示
{
writelcd_dat(t6[l]);
}
display(mintem,0xca);
delay1(5000000000); //延時顯示
}
void lcd_max() //定義最大溫度顯示
{
uchar k;
writelcd_cmd(0x38); //初始化屏幕清屏
delay(5);
writelcd_cmd(0x38);
delay(5);
writelcd_cmd(0x38);
writelcd_cmd(0x08);
writelcd_cmd(0x01);
writelcd_cmd(0x06);
writelcd_cmd(0x0c);
writelcd_cmd(0x80);
writelcd_cmd(0xc0);
for(k=0;k<16;k++) //依次讀取t5并顯示
{
writelcd_dat(t5[k]);
}
display(maxtem,0xca);
delay1(5000000000);
}
void write_Char(unsigned char a,unsigned char b,unsigned char dat) //顯示時間程序母程序定位
{
if (b == 0)
{
writelcd_cmd(0x80 + a);
}
else
{
writelcd_cmd(0xC0 + a);
}
writelcd_dat(dat);
}
void display4(uchar hour1,uchar hour2,uchar min1,uchar min2,uchar sec1,uchar sec2) //顯示時間子程序取值
{
write_Char(4,0,table2[hour1]); //顯示小時
write_Char(5,0,table2[hour2]);
write_Char(6,0,table2[0x0a]); //顯示冒號
write_Char(7,0,table2[min1]); //分鐘
write_Char(8,0,table2[min2]);
write_Char(9,0,table2[0x0a]); //顯示冒號
write_Char(10,0,table2[sec1]); //秒
write_Char(11,0,table2[sec2]);
}
//顯示函數2 調最值溫度低十位在LCD上排顯示
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 調最值溫度的個位/小數在LCD下排顯示
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; //定義i/j
writelcd_cmd(0x80); //顯示函數表示以此顯示t3字模里面的字符
for(i=0;i<16;i++)
{writelcd_dat(t3[i]);}
writelcd_cmd(0xc0);
for(j=0;j<16;j++) //顯示函數表示以此顯示t4字模里面的字符
{writelcd_dat(t4[j]);}
while(mode!=0) //當mode不為0時
{
display2(htem,0x8b); //顯示調十位
display3(time,0xca); //顯示調個位小數位
while(mode!=0)
{
switch(mode) //切換模式case語句循環 5個模式 5個循環 6個變量初始模式為0 切換后對應地方的光標閃爍
{
case 1:writelcd_cmd(0xc0+10);writelcd_cmd(0x0f);break; //調個位
case 2:writelcd_cmd(0x80+11);writelcd_cmd(0x0f);break; //調十位
case 3:writelcd_cmd(0xc0+10);writelcd_cmd(0x0f);break; //調小數位
case 4:lcd_max();break; //顯示最大溫度
case 5:lcd_min();break; //顯示最小溫度
default:mode=0;break;
}
if(key2==0&&mode==1) //模式為1 key2為0時調最高位的個位
{
delay(50); //按鍵消抖
y=0;display3(y,0x80);writelcd_cmd(0xca+11); //max one 在左上角顯示0 表示調最高溫度
if(key2==0)
{
delay(10); //十個循環對應0-9數字
cnt1++; //計數+1
while(key2==0);
switch(cnt1%11) //按鍵到10以后清零
{
case 1:time=0;display3(time,0xca);writelcd_cmd(0xca+11);break; //在0xca的地方顯示個位值光標閃爍
case 2:time=1;display3(time,0xca);writelcd_cmd(0xca+11);break;
case 3:time=2;display3(time,0xca);writelcd_cmd(0xca+11);break;
case 4:time=3;display3(time,0xca);writelcd_cmd(0xca+11);break;
case 5:time=4;display3(time,0xca);writelcd_cmd(0xca+11);break;
case 6:time=5;display3(time,0xca);writelcd_cmd(0xca+11);break;
case 7:time=6;display3(time,0xca);writelcd_cmd(0xca+11);break;
case 8:time=7;display3(time,0xca);writelcd_cmd(0xca+11);break;
case 9:time=8;display3(time,0xca);writelcd_cmd(0xca+11);break;
case 10:time=9;display3(time,0xca);writelcd_cmd(0xca+11);break;
default:break;
}
}
}
if(key1==0&&mode==1) //類似最低個位
{
delay(50);
y=1;display3(y,0x80);writelcd_cmd(0xca+11); //min one 在左上角顯示1 表示調最低溫度
if(key1==0)
{
delay(10);
cnt4++;
while(key1==0);
switch(cnt4%11)
{
case 1:time2=0;display3(time2,0xca);writelcd_cmd(0xca+11);break;
case 2:time2=1;display3(time2,0xca);writelcd_cmd(0xca+11);break;
case 3:time2=2;display3(time2,0xca);writelcd_cmd(0xca+11);break;
case 4:time2=3;display3(time2,0xca);writelcd_cmd(0xca+11);break;
case 5:time2=4;display3(time2,0xca);writelcd_cmd(0xca+11);break;
case 6:time2=5;display3(time2,0xca);writelcd_cmd(0xca+11);break;
case 7:time2=6;display3(time2,0xca);writelcd_cmd(0xca+11);break;
case 8:time2=7;display3(time2,0xca);writelcd_cmd(0xca+11);break;
case 9:time2=8;display3(time2,0xca);writelcd_cmd(0xca+11);break;
case 10:time2=9;display3(time2,0xca);writelcd_cmd(0xca+11);break;
default:break;
}
}
}
if(key2==0&&mode==2) //最高十位
{
delay(10);
x=00;display2(x,0x80);writelcd_cmd(0x80+11); //max ten 在左上角顯示00 表示調最高
if(key2==0)
{
cnt2++;
while(key2==0);
switch(cnt2%11)
{
case 1:htem=00;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
case 2:htem=10;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
case 3:htem=20;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
case 4:htem=30;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
case 5:htem=40;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
case 6:htem=50;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
case 7:htem=60;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
case 8:htem=70;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
case 9:htem=80;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
case 10:htem=90;display2(htem,0x8b);writelcd_cmd(0x80+11);break;
default:break;
}
}
}
if(key1==0&&mode==2)
{
delay(10);
x=10;display2(x,0x80);writelcd_cmd(0x80+11); //min ten 在左上角顯示10表示調最低
if(key1==0)
{
cnt3++;
while(key1==0);
switch(cnt3%11)
{
case 1:htem2=00;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
case 2:htem2=10;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
case 3:htem2=20;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
case 4:htem2=30;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
case 5:htem2=40;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
case 6:htem2=50;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
case 7:htem2=60;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
case 8:htem2=70;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
case 9:htem2=80;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
case 10:htem2=90;display2(htem2,0x8b);writelcd_cmd(0x80+11);break;
default:break;
}
}
}
if(key2==0&&mode==3) //最高小數
{
delay(50);
z=00;display2(z,0x80);writelcd_cmd(0xca+11); //max dot
if(key2==0)
{
delay(10);
cnt5++;
while(key2==0);
switch(cnt5%11)
{
case 1:dot=0;display3(dot,0xca);writelcd_cmd(0xca+11);break;
case 2:dot=1;display3(dot,0xca);writelcd_cmd(0xca+11);break;
case 3:dot=2;display3(dot,0xca);writelcd_cmd(0xca+11);break;
case 4:dot=3;display3(dot,0xca);writelcd_cmd(0xca+11);break;
case 5:dot=4;display3(dot,0xca);writelcd_cmd(0xca+11);break;
case 6:dot=5;display3(dot,0xca);writelcd_cmd(0xca+11);break;
case 7:dot=6;display3(dot,0xca);writelcd_cmd(0xca+11);break;
case 8:dot=7;display3(dot,0xca);writelcd_cmd(0xca+11);break;
case 9:dot=8;display3(dot,0xca);writelcd_cmd(0xca+11);break;
case 10:dot=9;display3(dot,0xca);writelcd_cmd(0xca+11);break;
default:break;
}
}
}
if(key1==0&&mode==3) //最低小數
{
delay(50);
z=10;display2(z,0x80);writelcd_cmd(0xca+11); //min dot
if(key1==0)
{
delay(10);
cnt6++;
while(key1==0);
switch(cnt6%11)
{
case 1:dot2=0;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
case 2:dot2=1;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
case 3:dot2=2;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
case 4:dot2=3;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
case 5:dot2=4;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
case 6:dot2=5;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
case 7:dot2=6;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
case 8:dot2=7;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
case 9:dot2=8;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
case 10:dot2=9;display3(dot2,0xca);writelcd_cmd(0xca+11);break;
default:break;
}
}
}
if(mode==4) //模式4 顯示最大溫度
{
maxtem=htem*10+time*10+dot;
lcd_max();
}
if(mode==5) //最低溫度
{
mintem=htem2*10+time2*10+dot2;
lcd_min();
}
}
}
lcd_init(); //模式為0時執行LCD初始化函數
}
//中斷初始化函數
void init()
{
lcd_init(); //lcd初始化
speaker=1; //蜂鳴器口默認高電平
mode=0; //模式默認0
htem=80; //最高溫度默認80
time=0;
htem2=10; //最低溫度默認10
time2=0;
dot=0;
dot2=0;
EA=1; //總中斷開啟
EX1=1; //外部中斷1允許
ET1=1; //定時器1允許
TMOD=0X01; //定時中斷1，模式1
IT1=1; //中斷1 下降沿觸發
TH1=0Xee; //定時中斷1 0.5us
TL1=0X00;
TR1=0; //定時中斷1默認關閉
count=0; //時間計數默認為0
hour=00; //小時00
min=00; //分鐘00
sec=00; //秒00
TH0=(65536-50000)/256; //內部中斷T0初始化
TL0=(65536-50000)%256;
TR0=1; //內部中斷T0開啟
ET0=1;
}
//主函數
void main()
{
P1=0xe7; //初始P1口，P14，P13為低電平使S1 S5 S9 S14 S15 S16變為接地的普通開關 S9與P33短接用于切換模式和退出報警中斷
init(); //中斷初始化
while(1)
{
if(mode!=0) //當模式不為0
{keyscan();} //執行按鍵掃描以及調溫度的程序
else if(mode==0) //模式為0時
{
delay(100);
tmpchange(); //在ds18b20取數據
tem=tmp(); //溫度值獲取為整數且小數位實際上是個位如35.5攝氏度對應的值是355
if(keyh==0) //當S14閉合時實現小時加一
{
delay(5);
if(keyh==0)
{
if(hour!=23) hour++; //hour=23后清零
else hour=0;
}
while(!keyh); //檢測松手
}
if(keym==0) //實現分鐘加一
{
delay(5);
if(keym==0)
{
if(min!=59) //59后清零
{
min++;
}
else
{
min=0;
}
}
while(!keym); //松手檢測
}
if(keys==0) //實現秒加一
{
……………………
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