#include<reg52.h>#define uchar unsigned char#define uint unsigned intsbit lcdws=P2^1; //1602管脚定义sbit lcden=P2^0;sbit lcdrs=P2^2;sbit key1=P2^3; //闹钟设置键sbit key2=P2^4;sbit key3=P1^5;//功能键定义sbit key4=P1^6;//增大键定义sbit key5=P1^7;//减小键定义uchar shi,fen,miao,ashi,afen,amiao,year,month,day,week; uchar s1num=0,s1num2=0,temp;bit flag;float f_temp;uint i,d;uchar code table2[]={0x20,0x20,0x2e,0x20,0xdf,0x43};uchar code table[]="20 - - ";uchar code table1[]=" : : ";sbit ds=P1^0;//ds18b20信号线sbit beep=P1^4; //蜂鸣器管脚定义sbit ACC_7 = ACC^7; //位寻址寄存器定义sbit SCLK = P1^2; // DS1302时钟信号sbit DIO= P1^1; // DS1302数据信号sbit CE = P1^3;//地址、数据发送子程序//void delay2(uint ms)// {// uchar t;// while(ms--); for(t=0;t<120;t++);//}// void playmusic()// {// uint i2=0,j2,k2;// while(jiepai[i2]!=0||song[i2]!=0)// {// for(j2=0;j2<jiepai[i2]*20;j2++)// {// beep=~beep;// for(k2=0;k2<song[i2]/3;k2++);// }// delay2(10);// i2++;// }// }void write_1302( uchar addr,uchar dat ){uchar i,temp;CE=0; //CE 引脚为低，数据传送中止SCLK=0; //清零时钟总线CE = 1; //CE 引脚为高，逻辑控制有效//发送地址for ( i=8; i>0; i-- ) //循环8次移位{SCLK = 0;temp = addr;DIO = (bit)(temp&0x01); //每次传输低字节addr >>= 1; //右移一位SCLK = 1;}//发送数据for ( i=8; i>0; i-- ){SCLK = 0;temp = dat;DIO = (bit)(temp&0x01);dat >>= 1;SCLK = 1;}CE = 0;}//数据读取子程序uchar Read1302 ( uchar addr ){unsigned char i,temp,dat1,dat2;CE=0;SCLK=0;CE = 1;//发送地址for ( i=8; i>0; i-- ) //循环8次移位{SCLK = 0;temp = addr;DIO = (bit)(temp&0x01); //每次传输低字节addr >>= 1; //右移一位SCLK = 1;//读取数据for ( i=8; i>0; i-- ){ACC_7=DIO;SCLK = 1;ACC>>=1;SCLK = 0;}CE=0;dat1=ACC;dat2=dat1/16; //数据进制转换//十六进制转十进制dat1=dat1%16;dat1=dat1+dat2*10;return (dat1);}//初始化DS1302void Initial(void) //初始化1302 2010年09月30日23点58分56秒星期一{write_1302 (0x8e,0x00); //允许写保护write_1302 (0x80,0x56); //秒位初始化write_1302 (0x82,0x58); //分钟初始化write_1302 (0x84,0x23); //小时初始化write_1302 (0x86,0x30); //日初始化write_1302 (0x88,0x09); //月初始化write_1302 (0x8c,0x10); //年初始化write_1302 (0x8a,0x01); //日期始化write_1302 (0x8e,0x80); //禁止写保护}void delay(uint z)//延时1ms{uint x,y;for(x=z;x>0;x--)for(y=110;y>0;y--);}void write_com(uchar com)//1602写命令{lcdrs=0;lcden=0;P0=com;delay(5);lcden=1;lcden=0;}void write_data(uchar date)//1602写数据{lcdrs=1;lcden=0;P0=date;delay(5);lcden=1;delay(5);lcden=0;}void dsreset(void) //DS18B20，初始化函数{uint i;ds=0;i=103;while(i>0)i--;ds=1;i=4;while(i>0)i--;}bit tempreadbit(void)//读1位数据函数{uint i;bit dat;ds=0;i++;ds=1;i++;i++;//i++起到延时作用dat=ds;i=8;while(i>0)i--;return(dat);}uchar tempread(void) //读一个字节数据函数{uchar i,j,dat;dat=0;for(i=1;i<=8;i++){j=tempreadbit();dat=(j<<7)|(dat>>1);}return(dat);}void tempwritebyte(uchar dat) //向DS18B20写一个字节数据函数{uint i;uchar j;bit testb;for(j=1;j<=8;j++){testb=dat&0x01;dat=dat>>1;if(testb)//写1{ds=0;i++;i++;ds=1;i=8;while(i>0)i--;}else{ds=0; //写0i=8;while(i>0)i--;ds=1;i++;i++;}}}void tempchange(void) //DS18B20开始获取温度并转换{dsreset();delay(1);tempwritebyte(0xcc);tempwritebyte(0x44);}uint get_temp() //获取温度{uchar a,b;dsreset();delay(1);tempwritebyte(0xcc);tempwritebyte(0xbe);a=tempread(); //读高8位b=tempread(); //读低8位temp=b;temp<<=8; //两个字节组合成1个字节temp=temp|a;f_temp=temp*0.0625;temp=f_temp*10+0.5;f_temp=f_temp+0.05; //温度在寄存器中为12位，分辨率为0.0625^ return temp;}void display(uchar addr,uchar dat){write_com(0x80+0x40+addr);write_data(0x30+dat);delay(5);}void dis_temp(uint t){uchar i;i=t/100;display(10,i);i=t%100/10;display(11,i);i=t%100%10;display(13,i);}void init()//初始化程序{uchar num;flag=1;lcden=0;write_com(0x38);write_com(0x0c);write_com(0x06);write_com(0x01);write_com(0x80);for(num=0;num<15;num++){write_data(table[num]);delay(5);}write_com(0x80+0x40);for(num=0;num<8;num++){write_data(table1[num]);delay(5);}write_com(0x80+0x40+10);for(num=0;num<6;num++){write_data(table2[num]);delay(10);}}void di()//蜂鸣器响函数{beep=0;delay(100);beep=1;}void write_sfm(uchar add,uchar date){uchar shi,ge;shi=date/10;ge=date%10;write_com(0x80+0x40+add);write_data(0x30+shi);write_data(0x30+ge);}void write_nyrz(uchar add,uchar date)//显示年，月，日，周{uchar shi,ge;shi=date/10;ge=date%10;write_com(0x80+add);write_data(0x30+shi);write_data(0x30+ge);}void display_week(uchar we){write_com(0x80+12);switch(we){case 1: write_data('M');delay(5);write_data('O');delay(5);write_data('N');break;case 2: write_data('T');delay(5);write_data('U');delay(5);write_data('E');break;case 3: write_data('W');delay(5);write_data('E');delay(5);write_data('D');break;case 4: write_data('T');delay(5);write_data('H');delay(5);write_data('U');break;case 5: write_data('F');delay(5);write_data('R');delay(5);write_data('T');break;case 6: write_data('S');delay(5);write_data('A');delay(5);write_data('T');break;case 7: write_data('S');delay(5);write_data('U');delay(5);write_data('N');break;}}void keyscan()//按键设置{if(key3==0)//功能键按下{flag=0;delay(5);if(key3==0){s1num++;while(!key3);di();switch(s1num)//光标闪烁定位{case 1:write_com(0x80+0x40+7);//定位到秒的位置write_com(0x0f);break;case 2:write_com(0x80+0x40+4);//定位到分的位置write_com(0x0f);break;case 3:write_com(0x80+0x40+1);//定位到小时的位置write_com(0x0f);break;case 4:write_com(0x80+0x0e);//定位到星期的位置write_com(0x0f);break;case 5:write_com(0x80+0x9);//定位到日的位置write_com(0x0f);break;case 6:write_com(0x80+0x6);//定位到月的位置write_com(0x0f);break;case 7:write_com(0x80+0x3);//定位到年的位置write_com(0x0f);break;case 8: s1num=0;//复位，时钟走write_com(0x0c);flag=1;write_1302 (0x8e,0x00); //允许写保护write_1302 (0x80,miao); //秒位初始化write_1302 (0x82,fen); //分钟初始化write_1302 (0x84,shi); //小时初始化write_1302 (0x86,day); //日初始化write_1302 (0x88,month); //月初始化write_1302 (0x8c,year); //年初始化write_1302 (0x8a,week); //日期始化write_1302 (0x8e,0x80); //禁止写￥break;}}}if(s1num!=0)//只有功能键按下后，增大，增小建才有效{if(key4==0)//增大建{delay(5);if(key4==0){while(!key4);di();switch(s1num){case 1: miao++;if(miao==60)miao=0;write_sfm(6,miao);//write_1302(write_second,miao);write_com(0x80+0x40+7);break;case 2: fen++;if(fen==60)fen=0;write_sfm(3,fen);//write_1302(write_minute,fen);write_com(0x80+0x40+4);break;case 3: shi++;if(shi==24)shi=0;write_sfm(0,shi);write_com(0x80+0x40+1);break;case 4: week++;if(week==8)week=1;display_week(week);write_com(0x80+14);break;case 5: day++;if(day==31)day=1;write_nyrz(8,day);write_com(0x80+9);break;case 6: month++;if(month==13)month=1;write_nyrz(5,month);write_com(0x80+6);break;case 7: year++;if(year==99)year=0;write_nyrz(2,year);write_com(0x80+3);break;}}}if(key5==0)//减小键{delay(5);if(key5==0){while(!key5);di();switch(s1num){case 1: miao--;if(miao==-1)miao=59;write_sfm(6,miao);write_com(0x80+0x40+7);break;case 2: fen--;if(fen==-1)fen=59;write_sfm(3,fen);write_com(0x80+0x40+4);break;case 3: shi--;if(shi==-1)shi=23;write_sfm(0,shi);write_com(0x80+0x40+1);break;case 4: week--;if(week==-1)week=7;display_week(week);write_com(0x80+14);break;case 5: day--;if(day==0)day=31;write_nyrz(8,day);write_com(0x80+9);break;case 6: month--;if(month==0)month=12;write_nyrz(5,month);write_com(0x80+6);break;case 7: year--;if(year==-1)year=99;write_nyrz(2,year);write_com(0x80+3);break;}}}}}void set_alarm(){if(key1==0)//功能键按下{delay(5);if(key1==0){while(!key1);flag=0;s1num2++;write_sfm(6,amiao);write_com(0x80+0x40+7);write_sfm(3,afen);write_com(0x80+0x40+4);write_sfm(0,ashi);write_com(0x80+0x40+1);di();switch(s1num2)//光标闪烁定位{case 1:write_com(0x80+0x40+7);//定位到秒的位置write_com(0x0f);break;case 2:write_com(0x80+0x40+4);//定位到分的位置write_com(0x0f);break;case 3:write_com(0x80+0x40+1);//定位到小时的位置write_com(0x0f);break;case 4: s1num2=0;//复位，时钟走write_com(0x0c);flag=1;// write_1302(0x8e,0x00);//允许写保护write_1302 (0x8e,0x80);break;}}}if(s1num2!=0)//只有功能键按下后，增大，增小建才有效{if(key2==0)//增大建{delay(5);if(key2==0){while(!key2);di();switch(s1num2){case 1: amiao++;if(amiao==60)amiao=0;write_sfm(6,amiao);write_com(0x80+0x40+7);break;case 2: afen++;if(afen==60)afen=0;write_sfm(3,afen);write_com(0x80+0x40+4);break;case 3: ashi++;if(ashi==24)ashi=0;write_sfm(0,ashi);write_com(0x80+0x40+1);break;}}}}}void main()//主函数{Initial();lcdws=0;init();// IntConfiguration();tempchange();for(i=10;i>0;i--){dis_temp(get_temp());}while(1){keyscan();//按键扫描// while((key1&&key2&&key3&&key4&&key5)&&((fen==afen)&&(shi==ashi))) // {// beep=0;// delay(500);// beep=1;// }if(flag==1){miao=Read1302(0x81);//显示秒write_sfm(6,miao);fen=Read1302(0x83);//显示分write_sfm(3,fen);shi=Read1302(0x85);//显示小时write_sfm(0,shi);day=Read1302(0x87);//显示日write_nyrz(8,day);month=Read1302(0x89);//显示月write_nyrz(5,month);year=Read1302(0x8d);//显示年write_nyrz(2,year);week=Read1302(0x8b);//显示日期display_week(week);}else{write_1302(0x80,0x80);//时钟振荡器停止}set_alarm();}}。