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#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int uint out;
uchar hou,min,scn,day,mon,week,year; uchar code num[15]={'0','1','2','3','4','5','6','7','8','9','-',':',0xdf,'.','C'};
uchar data date[11]={2,0,1,1,10,1,1,10,1,1,1};
uchar data time[8]={1,1,11,1,1,11,1,1};
uchar data temp[6]={1,1,13,1,12,14};
uchar code weeks[7][3]= {
{'M','O','N'},
{'T','U','E'},
{'W','E','D'},
{'T','H','U'},
{'F','R','I'},
{'S','A','T'},
{'S','U','N'},
}; sbit led=P2^0;
sbit IO=P1^6;
sbit CE=P1^7;
sbit SLK=P1^5;
sbit SCK=P1^2;
sbit RCK=P1^1;
sbit EN=P1^3;
sbit SOU=P3^7;
sbit si=P3^6;
sbit RS=P1^0;
sbit RW=P1^1;
sbit LCDEN=P1^2;
sbit POWER=P1^4; void delay18(uint x)
{
uchar i,j;
for(i=x;i>0;i--)
for(j=11;j>0;j--); } void init18(void) //溫度模塊初始化
{
uint i;
si=1;
i++;
si=0;
delay18(8);
si=1;
i=2200;
while(si==1|(i<0))i--;
delay18(5);
si=1;
} void writebyte18(uchar dat) //溫度模塊寫字節(jié)
{
uchar i=0,j;
for(i=8;i>0;i--)
{
si=0;
j++;j++;
si=dat&0x01;
j=5;
while(j--); //等待18b20采集信號
si=1;
dat>>=1;
}
si=1;
}
uchar readbyte18(void) //溫度模塊讀字節(jié)
{
uchar i,j,k,value;
for(i=8;i>0;i--)
{
value=value>>1;
si=1;
j++;
si=0;
j++;j++;
si=1;
j++;j++;
if(si)
value|=0x80;
j=3;while(j--); //50微秒內(nèi)釋放總線
}
return(value);
}
void start(void) //溫度采集開始
{
init18();
delay18(10);
writebyte18(0xcc);
writebyte18(0x44);
} uint gettemp(void) //獲取溫度數(shù)據(jù)
{
float ftemp;
uint temp,t;
uchar a,b;
delay18(10);
init18();
writebyte18(0xcc);
writebyte18(0xbe);
a=readbyte18();
b=readbyte18();
temp=b;
temp=temp<<8;
temp|=a;
t=temp;
ftemp=t*0.0625;
t=ftemp*100+(t>0?0.5:-0.5);
return t; } void init()
{
SLK=0;
IO=0;
CE=0;
} void writebyte(uchar com,uchar dat) //DS1302寫字節(jié)
{
uint i,j;
SLK=0;
CE=1;
for(i=0;i<8;i++)
{
SLK=0;
IO=com&0X01;
j++;
SLK=1;
com=com>>1;
}
for(i=0;i<8;i++)
{
SLK=0;
IO=dat&0X01;
j++;
SLK=1;
dat=dat>>1;
}
CE=0;
} uchar readbyte(uchar com) //DS1302讀字節(jié)
{
uchar i,date;
CE=0; //
SLK=0;
CE=1; for(i=0;i<8;i++)
{
//SLK=0;
IO=com&0x01;
//j++;
SLK=0; SLK=1;
com=com>>1;
}
for(i=0;i<8;i++) //筆記：注意讀取數(shù)據(jù)的順序排列，左移位及右移位。下降沿的制造以及數(shù)據(jù)的讀取~
{
date>>=1;
SLK=0;
if(IO==1)
date=date|0x80;
SLK=1;
}
CE=0;
return date;
} void delay(x)
{
uint i,j;
for(i=x;i>0;i--)
for(j=110;j>0;j--);
}
void alarm() //鬧鐘
{
uint i,j,k;
for(k=60;k>0;k--)
{
for(j=4;j>0;j--)
{
for(i=100;i>0;i--)
{
SOU=0;
delay(1);
SOU=1;
}
delay(15);
}
delay(300);
}
}
void delay1( ms)
{
uint i,j;
for(i=ms;i>0;i--)
for(j=55;j>0;j--);
}
void wtcom(uchar com) //LCD寫命令
{
RS=0;
RW=0;
P0=com;
delay(5);
LCDEN=1;
delay(5);
LCDEN=0;
}
void wtdate(uchar date) //LCD寫數(shù)據(jù)
{
RS=1;
P0=date;
delay1(1);
LCDEN=1;
delay1(1);
LCDEN=0;
} void initlcd() //初始化LCD
{
LCDEN=0;
wtcom(0x38);
wtcom(0x0c);
wtcom(0x06);
wtcom(0x01);
} void writelcd()
{
uchar i;
initlcd();
wtcom(0x80);
for(i=0;i<10;i++)
{
wtdate(num[date]);
}
wtcom(0x80+0x43);
for(i=0;i<5;i++)
{
wtdate(num[time]);
}
wtcom(0x8d);
for(i=0;i<3;i++)
{
wtdate(weeks[(week-1)]);
}
wtcom(0x80+0x4a);
for(i=0;i<6;i++)
{
wtdate(num[temp]);
}
} void displaydate()
{
date[2]=year>>4;
date[3]=year&0x0f;
date[5]=mon>>4;
date[6]=mon&0x0f;
date[8]=day>>4;
date[9]=day&0x0f;
} void displaytime()
{
time[0]=hou>>4;
time[1]=hou&0x0f;
time[3]=min>>4;
time[4]=min&0x0f;
time[6]=scn>>4;
time[7]=scn&0x0f;
} void displaytemp()
{
temp[0]=gettemp()/1000;
temp[1]=gettemp()/100%10;
temp[3]=gettemp()/10%10;
} void main()
{
EN=1;
init();
//writebyte(0x8c,0x12);
// writebyte(0x8a,0x01);
//writebyte(0x88,0x03);
// writebyte(0x86,0x31);
// writebyte(0x84,0x10); //寫小時
//writebyte(0x82,0x28); //寫分鐘
// writebyte(0x80,0x30); //寫秒鐘
// writelcd();
P2=0Xff;
while(1)
{
uchar change1,change2;
uint t1,t2;
start();
scn=readbyte(0x81);
min=readbyte(0x83);
hou=readbyte(0x85);
day=readbyte(0x87);
mon=readbyte(0x89);
week=readbyte(0x8b);
year=readbyte(0x8d);
change1=min;
displaytemp();
t1=temp[3];
displaydate();
displaytime();
if(change1!=change2)
writelcd();
change2=min;
if(t1!=t2)
writelcd();
t2=temp[3];
delay1(1000);
if(hou==0X10)
if(min==0x40)
POWER=0;
}
} | 
