12864液晶电子钟_具有按键可调、闹钟、温度显示

//程序已全部通过硬件测试，请放心使用。

（没有使用到DS1302）/************12864时钟显示函数*************//******实现时间走动、按键控制、蜂鸣器闹铃、温度显示******/#include<reg52.h>#include <stdio.h>#define uchar unsigned char#define uint unsigned int/******************** 功能：定义液晶12864控制端接口*********************/sbit rs=P2^6;// 注意：rw 控制端始终为低电平，直接在硬件上接低电平sbit en=P2^7;sbit wd=P2^0; //温度传感器信号线/******************** 功能：定义蜂鸣器、按键接口*********************/sbit beet=P2^2; //蜂鸣器定义sbit key1=P1^0; //功能选择sbit key2=P1^1; //至加sbit key3=P1^2; //至减sbit key4=P1^3; //北京时间与闹钟时间画面切换/******************** 功能：定义数据初始值******************************/char hour=23,minute=59,second=58,count=0;char shi=0,fen=0,miao=0,hm;int years=2012;char month=12,day=30,mm=0,cc=7;uint temp;float f_temp;/******************** 功能：定义数组字符串*********************/uchar code table1[]={" 幸福牌电子钟"};uchar code table2[]={"温馨提示：00.0℃"};/******************** 功能：延时函数***************************/void delay(uint z){uint x,y;for(x=z;x>0;x--)for(y=110;y>0;y--);}/******************* 功能：蜂鸣器响应***********************/void fengmingqi(){beet=0;delay(1);beet=1;delay(1);}/******************** 功能：液晶12864读写数据******************/void xieling_shu(uchar aa,uchar bb){if(aa==1){rs=0;}if(aa==0){rs=1;}P0=bb;delay(1);en=1; delay(1);en=0; delay(1);}/******************** 功能：液晶12864写入地址******************/void xieludizhi(uchar x, uchar y){switch(x){case 1: xieling_shu(1,0x80 + y ); return;//return 返回的意思case 2: xieling_shu(1,0x90 + y ); return;case 3: xieling_shu(1,0x88 + y ); return;case 4: xieling_shu(1,0x98 + y ); return;}}/******************** 功能：液晶12864写入字符串*****************/void xiezifuchuan(uchar *dd){while(*dd != '\0'){xieling_shu(0,*dd++ );}}/******************** 功能：液晶12864清屏函数*********************/void qingping(){xieling_shu(1,0x01); //清屏xieling_shu(1,0x01); //清屏xieling_shu(1,0x01); //清屏delay(20);}/******************** 功能：液晶12864初始化指令操作******************/void init_12864(){xieling_shu(1,0x30); //基本指令操作xieling_shu(1,0x30); //基本指令操作xieling_shu(1,0x0C); //0x0c: 无光标，OXOF: 光标反白显示xieling_shu(1,0x01); //清屏xieling_shu(1,0x06);}/******************** 功能：液晶12864初始化字串显示******************/void init_zifu(){xieludizhi(1,0);xiezifuchuan(" 欢迎使用"); delay(1);xieludizhi(2,0);xiezifuchuan(" 幸福牌电子钟"); delay(1);xieludizhi(3,0);xiezifuchuan(" 订购热线"); delay(1);xieludizhi(4,0);xiezifuchuan("Phone:0777-66914"); delay(9534);qingping();xieludizhi(1,0);xiezifuchuan(table1); delay(1);xieludizhi(4,0);xiezifuchuan(table2); delay(1);xieludizhi(3,5);xiezifuchuan("星期");xieludizhi(2,2);xiezifuchuan("年月日");}/******************* 功能：时间、年月日显示函数********************/void display(){xieludizhi(3,0); // 显示时分秒xieling_shu(0,0x30+hour/10);xieling_shu(0,0x30+hour%10);xieling_shu(0,':');xieling_shu(0,0x30+minute/10);xieling_shu(0,0x30+minute%10);xieling_shu(0,':');xieling_shu(0,0x30+second/10);xieling_shu(0,0x30+second%10);xieludizhi(2,0); // 显示年xieling_shu(0,0x30+years/1000);xieling_shu(0,0x30+years%1000/100);xieling_shu(0,0x30+years%100/10);xieling_shu(0,0x30+years%10);xieludizhi(2,3); // 显示月xieling_shu(0,0x30+month/10);xieling_shu(0,0x30+month%10);xieludizhi(2,5); // 显示日xieling_shu(0,0x30+day/10);xieling_shu(0,0x30+day%10);}/******************* 功能：闹钟（时间、年月日）显示函数********************/void display1(){xieludizhi(3,0); // 显示时分秒xieling_shu(0,0x30+shi/10);xieling_shu(0,0x30+shi%10);xieling_shu(0,':');xieling_shu(0,0x30+fen/10);xieling_shu(0,0x30+fen%10);xieling_shu(0,':');xieling_shu(0,0x30+miao/10);xieling_shu(0,0x30+miao%10);xieludizhi(2,0); // 显示年xieling_shu(0,0x30+years/1000);xieling_shu(0,0x30+years%1000/100);xieling_shu(0,0x30+years%100/10);xieling_shu(0,0x30+years%10);xieludizhi(2,3); // 显示月xieling_shu(0,0x30+month/10);xieling_shu(0,0x30+month%10);xieludizhi(2,5); // 显示日xieling_shu(0,0x30+day/10);xieling_shu(0,0x30+day%10);}/******************* 功能：星期函数*********************************/void xingqi(){switch(cc){case 1: xieludizhi(3,7); xiezifuchuan("一"); return;case 2: xieludizhi(3,7); xiezifuchuan("二"); return;case 3: xieludizhi(3,7); xiezifuchuan("叁"); return;case 4: xieludizhi(3,7); xiezifuchuan("四"); return;case 5: xieludizhi(3,7); xiezifuchuan("五"); return;case 6: xieludizhi(3,7); xiezifuchuan("六"); return;case 7: xieludizhi(3,7); xiezifuchuan("日"); return;}}/******************* 功能：按键程序*******************/void anjian(){if(key4==0){delay(1);hm=~hm;while(key4==0);} /******************* 功能：key1按键选择功能*******************/if(key1==0){delay(1);mm++;if(hm!=0){if(mm>=4)mm=0;}if(mm==1){xieludizhi(3,3);xieling_shu(0,0x5f);}if(mm==2){TR0=1;xieludizhi(3,2);xieling_shu(0,0x5f);}if(mm==3){xieludizhi(3,0);xieling_shu(0,0x5f);}if(mm==4){xieludizhi(2,5);xieling_shu(0,0x5f);}if(mm==5){xieludizhi(2,3);xieling_shu(0,0x5f);}if(mm==6){xieludizhi(2,1);xieling_shu(0,0x5f);}if(mm==7){xieludizhi(3,7);xieling_shu(0,0x5f);}if(mm==8){xieludizhi(2,7);xieling_shu(0,0x02);} if(mm>=9){xieludizhi(2,7);xieling_shu(0,0x20);mm=0;} // mm=0;跳出调整时间while(key1==0);}/******************* 功能：key2按键加减功能*******************/if(mm==1&&key2==0) //秒加1{if(hm==0){TR0=0;delay(1);if(key2==0){second++;if(second>=60){second=0;}}} if(hm!=0){delay(1);if(key2==0){miao++;if(miao>=60){miao=0;}}}while(key2==0);}if(mm==1&&key3==0) //秒减1{if(hm==0){TR0=0;delay(1);if(key3==0){second--;if(second<=-1){second=59;}}} if(hm!=0){delay(1);if(key3==0){miao--;if(miao<=-1){miao=59;}}}while(key3==0);}if(mm==2&&key2==0) //分加1{if(hm==0){delay(1);if(key2==0){minute++;if(minute>=60){minute=0;}}} if(hm!=0){delay(1);if(key2==0){fen++;if(fen>=60){fen=0;}}}while(key2==0);}if(mm==2&&key3==0) //分减1{if(hm==0){delay(1);if(key3==0){minute--;if(minute<=-1){minute=59;}}} if(hm!=0){delay(1);if(key3==0){fen--;if(fen<=-1){fen=59;}}}while(key3==0);}if(mm==3&&key2==0) //时加1{if(hm==0){delay(1);if(key2==0){hour++;if(hour>=24){hour=0;}}} if(hm!=0){delay(1);if(key2==0){shi++;if(shi>=24){shi=0;}}}while(key2==0);}if(mm==3&&key3==0) //时减1{if(hm==0){delay(1);if(key3==0){hour--;if(hour<=-1){hour=23;}}} if(hm!=0){delay(1);if(key3==0){shi--;if(shi<=-1){shi=23;}}}while(key3==0);}if(mm==4&&key2==0) //日加1{delay(1);if(key2==0){day++;if(day>=31){day=1;}}while(key2==0);}if(mm==4&&key3==0) //日减1{delay(1);if(key3==0){day--;if(day<=0){day=31;}}while(key3==0);}if(mm==5&&key2==0) //月加1{delay(1);if(key2==0){month++;if(month>=13){month=1;}}while(key2==0);}if(mm==5&&key3==0) //月减1{delay(1);if(key3==0){month--;if(month<=0){month=12;}}while(key3==0);}if(mm==6&&key2==0) //年加1{delay(1);if(key2==0){years++;}// 不设置年限while(key2==0);}if(mm==6&&key3==0) //年减1{delay(1);if(key3==0){years--;}while(key3==0);}if(mm==7&&key2==0) //星期加1{delay(1);if(key2==0){cc++;if(cc>=8){cc=1;}}while(key2==0);}if(mm==7&&key3==0) //星期减1{delay(1);if(key3==0){cc--;if(cc==0){cc=7;}}while(key3==0);}}/********************************************************************************************************************** 功能：18B20 所有函数************************************//******************* 18B20复位，初始化函数**************************/void dsreset(void){uint i;wd=0;i=103;while(i>0)i--;wd=1;i=4;while(i>0)i--;}/******************* 18B20 读1位函数**************************/bit tempreadbit(void){uint i;bit dat;wd=0;i++; //i++ 起延时作用wd=1;i++;i++;dat=wd;i=8;while(i>0)i--;return (dat);}/******************* 18B20 读1个字节函数**************************/uchar tempread(void){uchar i,j,dat;dat=0;for(i=1;i<=8;i++){j=tempreadbit();dat=(j<<7)|(dat>>1); //读出的数据最低位在最前面，这样刚好一个字节在DAT里}return(dat);}/******************* 18B20 写一个字节数据函数**************************/void tempwritebyte(uchar dat){uint i;uchar j;bit testb;for(j=1;j<=8;j++){testb=dat&0x01;dat=dat>>1;if(testb) //写1{wd=0;i++;i++;wd=1;i=8;while(i>0)i--;}else{wd=0; //写0i=8;while(i>0)i--;wd=1;i++;i++;}}}/******************* 18B20 开始获取温度并转换函数**************************/void tempchange(void){dsreset();delay(1);tempwritebyte(0xcc); // 写跳过读ROM指令tempwritebyte(0x44); // 写温度转换指令}/******************* 18B20 读取寄存器中存储的温度数据函数**************************/uint get_temp(){uchar a,b;dsreset();delay(1);tempwritebyte(0xcc);tempwritebyte(0xbe);a=tempread(); //读低8位b=tempread(); //读高8位temp=b;temp<<=8; //两个字节组合为1个字temp=temp|a;f_temp=temp*0.0625; //温度在寄存器中为12位分辨率位0.0625°temp=f_temp*10+0.5; //乘以10表示小数点后面只取1位，加0.5是四舍五入f_temp=f_temp+0.05;return temp; //temp是整型}/******************* 18B20 发送数据函数**************************/void comm(char *parr){do{SBUF = *parr++; //发送数据while(!TI); //等待发送完成标志为1TI =0; //标志清零}while(*parr); //保持循环直到字符为'\0'}/************************ 功能：主函数****************************/void main(){ uchar buff[4];TMOD=0x01; // 设置T0为工作方式1EA=1;ET0=1;TR0=1; //开启T0中断TH0=-50000/256;TL0=-50000%256;init_12864();init_zifu();hm=0;while(1){ if(count>5&&count<18){tempchange(); //开始获取温度get_temp(); //读取寄存温度sprintf(buff,"%f",f_temp);comm(buff);xieludizhi(4,5);xieling_shu(0,0x30+ temp/100);xieling_shu(0,0x30+temp%100/10);xieling_shu(0,0x2e);xieling_shu(0,0x30+temp%100%10);}if(hm==0)display(); // 如果hm=0 显示北京时间，否则显示闹钟时间else display1();anjian(); // 按键判断xingqi(); // 显示星期if(minute==59&&second==59){fengmingqi();} // 整点报时if(shi==hour&&fen==minute&&miao>=second&&miao<=second+3){fengmingqi();}// 闹钟}}/************************ 功能：中断函数**************************/void time() interrupt 1{TH0=-50000/256;TL0=-50000%256;count++;if(count==20){count=0;second++;if(second==60){second=0;minute++;if(minute==60){minute=0;hour++;if(hour==24){hour=0;day++;cc++;if(cc==8) cc=1;if(day==31){day=1;month++;if(month==13){month=1;years++;}}}}}}}。