带温度的LCD1602电子时钟设计

带温度的带温度的LCD1602电子时钟设计实验#带温度的LCD1602电子时钟设计一、实验目的学习利用AT89C52进行任务设计，练习使用52单片机内部的定时器进行计时。学习ds1302时钟芯片和ds18b20温度传感器的使用。学习用模块化编程进行较长程序的编写。二、实验要求（1）利用lcd1602液晶显示屏作为显示模块，用AT89C52进行控制，用ds18b02测量显示即时温度，温度报警，用ds1302时钟芯片为单片机提供时间数据。具有定时功能。（2）要求时间和定时时间可调，并且在闹铃报时的时候可以用按键进行关闭。并且可以用按键关闭打开定时功能。（3）利用keiluVision4编译软件进行编译。（4）完成实验要求，写出实验报告。三、软件环境Proteus仿真软件，keiluVision4编译软件四、工作现象本时钟具有显示年月日时分秒星期、温度和温度报警的功能。实验用时钟芯片ds1302来提供秒、分、时、星期、日期、月份和年份的数据，显示部分采用液晶显示模块lcd1602,右上方显示星期，左下角显示温度，右下角显示闹铃的开关状态。用温度传感器ds18b20来测量温度。另外，闹铃用DI(LED-RED)来报时，用D2(LED-RED)做温度报警发声器，闹钟开启用D3来显示。具体各部分功能及操作下面将做介绍：ds1302给单片机at89c52提供年、月、日、时、分、秒、星期，ds18b20采集温度的数据，经单片机的处理送到液晶显示屏lcd1602上显示，实验设置的报警温度为30*c，由于程序有点长，已达到52单片机内存的极限，所以没加调整报警温度的功能，并且在修正时间的过程中只能加，不能减。现在开始介绍具体的操作步骤：keyl为调整时间和日期的按键，按下key1键，lcd1602上的光标按时分星期日月年的顺序进行移动，光标所到处按key3键可以调整相应的数据信息。Key2键是闹钟调整键，本实验只提供了设置时间来调整闹钟，不设计年月日和星期，按下key2键，光标在时分之间切换，光标所到处按key3调整相应数据。Key3键用来开关闹钟，当闹铃开启时，lcd1602的右下角会出现“ON”的字样，同时发光二极管D3点亮当闹铃关闭时，lcd1602右下角则出现“OF”的字样。Key4来关闭正在报时的闹钟，即闹钟响是按key4可关闭闹铃。五、实验电路图_Lr口,I-导应AL”匚一1」G1C1::二XTAL2X28.___..?厂MY3rLOQvcc-j一u.=-:AT匿2trrETrr"ikhmhyR558R6nffiXTy-cEST用ENALE51Fl.Inz3.-AMX3.qpi.5EUZIBiizzmZEq.‘si3,^§3.HAD23.3.3.m3.MAD53空号3.7苕7百士£2222•一P1省DB.僖S2司□,WJP3.尊sg阂37部amER日Bdpn:12;.,D2A『m--H^u5SiEXTvTTSTF2013'2'702■IWTMOF5K2,「嗑.岩IT廿生

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sss^-♦胜.K4■口，冰塞———6I,二E艺D3装中皿."lEXTU六、程序流程图主程序流程图图定时流程图七、程序代码：1、delay延时函数的.h函数:#ifndef__DELAY_H__#define__DELAY_H__#defineuintunsignedint#defineucharunsignedcharvoidlcddelay(uintz);voidds18b20delay(uintt);voidmsdelay(uintz);#endifDelay函数的.c函数：#include"delay.h"voidlcddelay(uintt){uintj,x;for(x=t;x>0;x--)for(j=19;j>0;j--);}voidds18b20delay(uintt){while(t--);}voidmsdelay(uintz){uintx,y;for(x=z;x>0;x--)for(y=110;y>0;y--);}2、液晶lcd1602的.h函数：#ifndef__LCD1602_H__#define__LCD1602_H__#include<reg52.h>#defineuintunsignedint#defineucharunsignedcharsbitrs=P2A0;sbitrw=P2A1;sbite=P2A2;voidlcdxcom(ucharcom);voidlcdinit();voidlcdxshuju(uchardat);voidlcdx_time(ucharadd,uchardate);voidlcdx_day(ucharadd,uchardate);#endif液晶lcd1602的.c函数：#include<reg52.h>#include"lcd1602.h"#include"delay.h"#include"ds1302.h"voidlcdxcom(ucharcom){e=0;rs=0;rw=0;P0=com;lcddelay(10);//500use=1;lcddelay(20);e=0;}voidlcdinit(){lcddelay(300);lcdxcom(0x38);lcddelay(100);lcdxcom(0x38);lcddelay(100);lcdxcom(0x38);lcdxcom(0x38);lcdxcom(0x08);lcdxcom(0x01);lcdxcom(0x06);lcdxcom(0x06);lcdxcom(0x0c);}voidlcdxshuju(uchardat){e=0;rs=0;rs=1;rw=0;P0=dat;lcddelay(10);e=1;lcddelay(20);e=0;}voidlcdx_time(ucharadd,uchardate)//写时分秒函数{ucharshi,ge;shi=date/10;ge=date%10;lcdxcom(0x80+0x40+add);//设置显示位置lcdxshuju(0x30+shi);//送去液晶显示十位lcdxshuju(0x30+ge);//显示各位lcdxcom(0x0c);//设置开始显示，不显示光标}voidlcdx_day(ucharadd,uchardatey/写时分秒函数{ucharshi,ge;shi=date/10;ge=date%10;lcdxcom(0x80+add);//设置显示位置lcdxshuju(0x30+shi);//送去液晶显示十位lcdxshuju(0x30+ge);//显示各位lcdxcom(0x0c);//设置开始显示，不显示光标}3、时钟芯片ds1302的.h函数：#ifndef__DS1302_H__#define__DS1302_H__#include<reg52.h>#defineuintunsignedint#defineucharunsignedcharstaticunsignedcharshi,fen.miao,day;staticunsignedcharyue,week,nian;staticucharm,f,s,t,y,n,x;staticuchardshi=0,dfen=0,dmiao=0;staticucharb=0;sbitsck=P1A0;sbitio=P1A1；sbitrst=P1A2;sbitkey1=P3A4；sbitkey2=P3A5;sbitkey3=P3A6；sbitkey4=P3A7;sbitkey5=P3A3;sbitp=P1A5;sbita=P1A3;voidpd(void);voidzhuan(void);voidwr_ds1302byte(uchardat);voidwr_ds1302(ucharadd,uchardat);ucharr_ds1302(ucharadd);voidsetds1302(void);voidds1302r_time(void);ucharpanduan(ucharyue,uintnian);voidkeyscan(void);voidsetbeep(void);voidnaozhong(void);voidockey(void);#endif时钟芯片ds1302的.c函数：#include"ds1302.h”#include<intrins.h>#include"delay.h"#include"lcd1602.h”uchartimedata口={10,6,12,31,23,59,50};//年周月日时分秒ucharxiedizhi口={0x8c,0x8a,0x88,0x86,0x84,0x82,0x80};//写地址数组uchardudizhi口={0x8d,0x8b,0x89,0x87,0x85,0x83,0x81};//读地址数组uchartable3[]="ONF";voidwr_ds1302byte(uchardat)//写一个字节的数据{uchari;for(i=0;i<8;i++){sck=0;io=dat&0x01;dat>>=1;sck=1;}}voidwr_ds1302(ucharadd,uchardat)//写数据{rst=0;_nop_()；sck=0;_nop_();rst=1;_nop_();wr_ds1302byte(add);wr_ds1302byte(dat);rst=0;_nop_();io=1;sck=1;}ucharr_ds1302(ucharadd){uchari,value;rst=0;_nop_();sck=0;_nop_();rst=1;_nop_();wr_ds1302byte(add);for(i=0;i<8;i++){value>>=1;sck=0;if(io)value=value|0x80;sck=1;}rst=0;_nop_();sck=0;_nop_();sck=1;io=1;returnvalue;}voidsetds1302(void){uchari,j;for(i=0;i<8;i++){j=timedata[i]/10;timedata[i]=timedata[i]%10;timedata[i]=timedata[i]+j*16;}01_451302(0*80,0*00);//去除写保护for(i=0;i<7;i++){wr_ds1302(xiedizhi[i],timedata[i]);}wr_ds1302(0x8e,0x00);//力口除写保护lcdxcom(0xc0+14);lcdxshuju(table3[0]);lcdxshuju(table3⑵)；}voidds1302r_time(void){uchari;for(i=0;i<7;i++){timedata[i]=r_ds1302(dudizhi[i])/16*10+r_ds1302(dudizhi[i])%16;}miao=timedata[6];fen=timedata[5];shi=timedata[4];day=timedata[3];yue=timedata[2];week=timedata[1];nian=timedata[0];}voidzhuan(void){m=timedata[6];f=timedata[5];s=timedata[4];t=timedata[3];y=timedata[2];x=timedata[1];n=timedata[0];}voidpd(void){lcdx_time(10,miao);if(f!=fen)lcdx_time(7,fen);if(s!=shi)lcdx_time(4,shi);if(t!=day)lcdx_day(11,day);if(y!=yue)lcdx_day(8,yue);if(n!=nian)lcdx_day(5,nian);if(x!=week)lcdx_day(14,week);}ucharpanduan(ucharyue,uintnian){ucharr,a;a二((nian%400)==0||((nian%100!=0)&&(nian%4==0)));if((yue==1)||(yue==3)||(yue==5)||(yue==7)||(yue==8)||(yue==10)||(yue==12))r=31;if((yue==4)||(yue==6)||(yue==9)||(yue==11))r=30;if((a==1)&&(yue==2))r=29;if((a==0)&&(yue==2))r=28;returnr;}voidkeyscan(void){ucharz;ucharnum=0;msdelay(500);if(key1==0){msdelay(10);if(key1==0){ds1302r_time();lcdx_time(10,0);while(1){if(key1==0){msdelay(500);num++;if(num==1){lcdxcom(0x80+0x40+4);lcdxcom(0x0f);while((key3==1)&&(key1==1));do{lcdxcom(0x80+0x40+4);lcdxcom(0x0f);while(!key3){shi++;if(shi==24)shi=0;lcdx_time(4,shi);msdelay(300);}}while(key1);}if(num==2){lcdxcom(0xc0+7);lcdxcom(0x0f);while((key3==1)&&(key1==1));do{lcdxcom(0xc0+7);lcdxcom(0x0f);while(!key3){fen++;if(fen==60)fen=0;lcdx_time(7,fen);msdelay(300);}}while(key1);}if(num==3){lcdxcom(0x80+14);lcdxcom(0x0f);while((key3==1)&&(key1==1));do{lcdxcom(0x80+14);lcdxcom(0x0f);while(!key3){week++;if(week==8)week=1;lcdx_day(14,week);msdelay(300);}}while(key1);}if(num==4){lcdxcom(0x80+11);lcdxcom(0x0f);while((key3==1)&&(key1==1));do{lcdxcom(0x80+11);lcdxcom(0x0f);while(!key3){day++;z=panduan(yue,nian);if(day==(z+1))day=0;lcdx_day(11,day);msdelay(300);}}while(key1);}if(num==5){lcdxcom(0x80+8);lcdxcom(0x0f);while((key3==1)&&(key1==1));do{lcdxcom(0x80+8);lcdxcom(0x0f);while(!key3){yue++;if(yue==13)

yue=0;lcdx_day(8,yue);msdelay(300);}}while(key1);}if(num==6){lcdxcom(0x80+5);lcdxcom(0x0f);while((key3==1)&&(key1==1));do{lcdxcom(0x80+5);lcdxcom(0x0f);while(!key3){nian++;if(nian==20)nian=10;lcdx_day(5,nian);msdelay(300);}}while(key1);}if(num==7){timedata[4]=shi;timedata[5]=fen;timedata[6]=0;timedata[3]=day;timedata[2]=yue;timedata[0]=nian;timedata[1]=week;setds1302();num=0;break;}}}}}}voidsetbeep(void){ucharnum=0;msdelay(500);if(key2==0){msdelay(10);if(key2==0){lcdx_time(4,dshi);lcdx_time(7,dfen);lcdx_time(10,0);while(1){if(key2==0)num++;if(num==1){lcdxcom(0xc0+4);lcdxcom(0x0f);while((key3==1)&&(key2==1));do{lcdxcom(0xc0+4);lcdxcom(0x0f);while(!key3){dshi++;if(dshi==24){dshi=0;}lcdx_time(4,dshi);msdelay(300);}}while(key2==1);}if(num==2){lcdxcom(0xc0+7);lcdxcom(0x0f);while((key3==1)&&(key2==1));do{lcdxcom(0xc0+7);lcdxcom(0x0f);while(!key3){dfen++;if(dfen==60){dfen=0;}lcdx_time(7,dfen);msdelay(300);}}while(key2==1);}if(num==3){lcdx_time(4,shi);lcdx_time(7,fen);num=0;break;}msdelay(300);}}}}lcdxshuju(table3[1]);p=0;//定时开标志}}}}4、温度传感器ds18b20的.h函数:#ifndef__DS18B20_H__#define__DS18B20_H__#include<reg52.h>#defineuintunsignedint#defineucharunsignedcharvoidnaozhong(void){sbitds=P2A3;voidds1820init(void);if((b==1)&&(dshi==shi)&&(dfen==fen)&&((miao>=0)&&(miao<=2))){a=0;TR0=1;}}voidds1820xbyte(uchardat);uchards1820rbyte(void);ucharrwendu(void);#endif温度传感器ds18b20的.c函数：#include"ds18b20.h”#include"delay.h"voidds1820init(void)voidockey(void){if(key3==0){msdelay(100);if(key3==0){if(b==1){b=0;//关定时lcdxcom(0xc0+15);lcdxshuju(table3⑵)；p=1;//定时关标志}else{b=1;〃开定时lcdxcom(0xc0+15);voidds1820xbyte(uchardat){uchari;for(i=0;i<8;i++){ds=0;ds=dat&0x01;ds18b20delay(4);ds=1;dat>>=1;}{ucharn;ds=1;ds18b20delay(8);ds=0;ds18b20delay(80);ds=1;

ds18b20delay(8);n=ds;ds18b20delay(8);n=ds;ds18b20delay(4);}voidds1820xbyte(uchardat){uchari;for(i=0;i<8;i++){ds=0;ds=dat&0x01;ds18b20delay(4);ds=1;dat>>=1;}ds18b20delay(4);}uchards1820rbyte(void){uchari,a;for(i=0;i<8;i++){ds=0;ds=1;if(ds)a|=0x80;ds18b20delay(4);}returna;}ucharrwendu(void){ucharb,c;ds1820init();ds1820xbyte(0xcc);/^^romds1820xbyte(0x44);//启动温度测量ds18b20delay(300);ds1820init();ds1820xbyte(0xcc);ds1820xbyte(0xbe);b=ds1820rbyte();c=ds1820rbyte();c<<=4;c+=(b&0xf0)>>4;returnc;}5、主函数mian()：while(1)#include<reg52.h>{#include"lcd1602.c”ds1302r_time();