时钟电路图：PCB板：单片机程序：/*========================================================= ===========调试要求：:AT89S52芯片或AT89C522.晶振:12MHz功能：多功能时钟+温度计====================================================================*/#include<>#include<>#define uchar unsigned char#define uint unsigned intsbit dis_bit1=P2^7;振:12MHz功能：多功能时钟+温度计=========================================================== =========*/#include<>#include<>#define uchar unsigned char#define uint unsigned intsbit dis_bit1=P2^7;//定义数码管控制口sbit dis_bit2=P2^6;//定义数码管控制口sbit dis_bit3=P2^4;//定义数码管控制口sbit dis_bit4=P2^3;//定义数码管控制口sbit dis_bit5=P2^1;//定义数码管控制口sbit dis_bit6=P2^0;//定义数码管控制口sbit led1_bit=P2^2;//定时LED的控制口sbit led2_bit=P2^5;//定时LED的控制口sbit s1_bit=P1^0; //定义S1控制口sbit s2_bit=P1^1; //定义S2控制口sbit s3_bit=P1^2; //定义S3控制口sbit dq_ds18b20=P3^3;//定义控制DS18B20sbit speak=P3^7; //定义蜂鸣器控制口sbit clk_ds1302=P3^6;//定义控制DS1302的时钟线sbit io_ds1302=P3^5;//定义控制DS1302的串行数据sbit rest_ds1302=P3^4;#define smg_data P0//定义数码管数据口void delay_3us();//3US的延时程序void delay_8us(uint t);//8US延时基准程序void delay_50us(uint t);//延时50*T微妙函数的声明void display1(uchar dis_data);//数码管1显示子程序void display2(uchar dis_data);//数码管2显示子程序void display3(uchar dis_data);//数码管3显示子程序void display4(uchar dis_data);//数码管4显示子程序void display5(uchar dis_data);//数码管5显示子程序void display6(uchar dis_data);//数码管6显示子程序void init_t0();//定时器0初始化函数void dis_led();//LED处理函数void judge_s1();//S1按键处理函数void judge_s2();//S2按键处理函数void judge_s3();//S3按键处理函数void dis(uchar s6,uchar s5,uchar s4,uchar s3,uchar s2,uchar s1);//显示子程序void dis_san(uchar s6,uchar s5,uchar s4,uchar s3,uchar s2,uchar s1,uchar san);//闪烁显示子程序void judge_dis();//显示处理函数void judge_clock();//显示处理函数void set_ds1302();//设置时间void get_ds1302();//读取当前时间void w_1byte_ds1302(uchar t);//向DS1302写一个字节的数据uchar r_1byte_ds1302();//从DS1302读一个字节的数据//********************************************************* **************//DS18B20测温函数定义void w_1byte_ds18b20(uchar value);//向DS18B20写一个字节uchar r_1byte_ds18b20(void);//从DS18B20读取一个字节的数据void rest_ds18b20(void);//DS18B20复位程序void readtemp_ds18b20(void);//读取温度void dis_temp();//温度显示函数//共阳数码管断码表const uchar tabl1[16]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,// 0 1 2 3 4 50x82,0xf8,0x80,0x90,0x86,0x87,0xFF,//6 7 8 9 E T B0xc6,0xbf,0xff};// C -const uchar tabl3[]={0x00,0x01,0x01,0x02,0x03,0x03,0x04,0x04,0x05,0x06, 0x06,0x07,0x08,0x08,0x09,0x09};uchar t0_crycle;uchar hour_count,minute_count,second_count,msecond_count; uchar clock_hour,clock_minute;uchar countdown_second;uchar countdown_hour,countdown_minute;uchar clock_en;//闹钟关闭和开启的标志，1开启，0关闭uchar flag1,second_flag,zancun1,zancun2,zancun3;uchar zancun4,zancun5,zancun6,zancun7;uchar clock_flag,countdown_flag;ucharmsecond_minute,msecond_second,msecond_msecond,msecond_flag; //秒表相关参数uint speak_count;uchar templ,temph,temp_flag;uchar t_b,t_s,t_g,t_x,temp_flag2;//从左到右分别存储温度百位，十位，个位，小数位uchar tab23[3];//={0x40,0x59,0x23,0x28,0x11,0x06,0x09};//上电时默认的时间//主程序void main(){P3=0x00;flag1=0;zancun3=0;msecond_minute=0;//置秒表相关参数为0 msecond_second=0;msecond_msecond=0;speak=1;//关闭蜂鸣器speak_count=0;clock_hour=0;clock_minute=0;clock_flag=0;countdown_flag=0;//倒计时标志位为0clock_en=0;//开机时默认关闭闹钟init_t0();TR0=1;//// set_ds1302();//设置DS1302的初始时间//接下来开始编写让数码管显示的程序while(1){get_ds1302();judge_dis();//显示处理judge_s1();judge_s2();judge_s3();judge_clock();//闹钟处理程序}}void timer0() interrupt 1{TH0=(65536-50000)/256;TL0=(65536-50000)%256;t0_crycle++;if(t0_crycle==2)// 秒{t0_crycle=0;msecond_flag=1;msecond_count++;if(msecond_count==10)//1秒{msecond_count=0;second_flag=1;}}}//************************************************** //显示处理函数void judge_dis(){if(flag1==0){if(second_flag==1){zancun7++;second_flag=0;}if(zancun7<1){if(temp_flag2==1){readtemp_ds18b20();//读取温度 temp_flag2=0;}dis_temp();//温度显示函数}if(zancun7>=1){temp_flag2=1;zancun4=hour_count&0xf0;zancun4>>=4;zancun5=minute_count&0xf0;zancun5>>=4;zancun6=second_count&0xf0;zancun6>>=4;dis(zancun4,hour_count&0x0f,zancun5,minute_count&0x0f,zancu n6,second_count&0x0f);dis_led();if(zancun7==5)zancun7=0;}}if(flag1!=0){switch(flag1){case 1:dis(5,10,11,1,12,12);//显示SET1led1_bit=1;led2_bit=1;break;case 2:dis(5,10,11,2,12,12);//显示SET2break;case 3:dis(5,10,11,3,12,12);//显示SET3break;case 4:dis(5,10,11,4,12,12);//显示SET4break;case 5:dis(5,10,11,5,12,12);//显示SET5break;case 6:dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,12,12,1);break;case 7:dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,12,12,2 );break;case 8:dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,12,12,3 );break;case 9://进入修改时间，时间分位个位闪烁dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,12,12,4 );break;case 10://进入修改闹钟，闹钟小时十位闪烁dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,12,zanc un3,1);break;case 11://进入修改闹钟，闹钟小时个位闪烁dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,12,zanc un3,2);break;case 12://进入修改闹钟，闹钟小时十位闪烁dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,12,zanc un3,3);break;case 13://进入修改闹钟，闹钟小时个位闪烁dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,12,zancun3,4);break;case 14://进入修改闹钟的开关dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,12,zanc un3,6);break;case 15:dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,zancun3 /10,zancun3%10,1);break;case 16:dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,zancun3 /10,zancun3%10,2);break;case 17:dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,zancun3 /10,zancun3%10,3);break;case 18:dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,zancun3 /10,zancun3%10,4);break;case 19:dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,zancun3 /10,zancun3%10,5);break;case 20:dis_san(zancun1/10,zancun1%10,zancun2/10,zancun2%10,zancun3/10,zancun3%10,6);break;case 21:if(second_flag==1){second_flag=0;countdown_second--;if(countdown_second==255){countdown_second=59;countdown_minute--;if(countdown_minute==255){countdown_minute=59; countdown_hour--;if(countdown_hour==255){flag1=22;countdown_minute=0;countdown_hour=0;countdown_second=0;countdown_flag=1;}}}}dis(countdown_hour/10,countdown_hour%10,countdown_minute/10 ,countdown_minute%10,countdown_second/10,countdown_second%1 0);//break;case 22:if(countdown_flag>0 && countdown_flag<7){speak=0;if(second_flag==1){second_flag=0;countdown_flag++;}}else{speak=1;}dis(countdown_hour/10,countdown_hour%10,countdown_minute/10,countdown_minute%10,countdown_second/10,countdown_second%1 0);//break;case 23:dis(msecond_minute/10,msecond_minute%10,msecond_second/10,m second_second%10,msecond_msecond%10,12);break;case 24:if(msecond_flag==1){msecond_flag=0;msecond_msecond++;if(msecond_msecond==10){msecond_msecond=0;msecond_second++;if(msecond_second==60){msecond_second=0;msecond_minute++;if(msecond_minute==100){msecond_minute=99;flag1=23;}}}}dis(msecond_minute/10,msecond_minute%10,msecond_second/10,m second_second%10,msecond_msecond%10,12);break;case 25:dis(zancun3/10,zancun3%10,zancun2/10,zancun2%10,zancun1/10, zancun1%10);break;default:break;}}}//**************************************************//S1按键处理函数void judge_s1(){s1_bit=1;//置IO为1，准备读入收据if(s1_bit==0)//判断是否有按键按下{delay_50us(1);// 延时，去除机械抖动if(s1_bit==0){switch(flag1){case 0:case 1:case 2:case 3:case 4:case 6:case 7:case 8:case 10:case 11:case 12:case 13:case 15:case 16:case 17:case 18:case 19:flag1++;break;case 9:flag1=6;break;case 14:flag1=10;break;case 20:flag1=15;break;case 5:case 21:case 22:case 23://系统从秒表状态复位case 24://系统从秒表状态复位case 25://系统从计数器复位 flag1=0;break;default:break;}while(s1_bit==0){judge_dis();}//等待按键释放}}}//************************************************** //S2按键处理函数void judge_s2(){s2_bit=1;//置IO为1，准备读入收据if(s2_bit==0)//判断是否有按键按下{delay_50us(1);// 延时，去除机械抖动if(s2_bit==0){switch (flag1){case1: //在显示SET1状态下按S2件，进入修改时间 flag1=6;zancun4=hour_count&0xf0;zancun4>>=4;zancun6=hour_count&0x0f;zancun1=zancun4*10+zancun6;//zancun1=hour_count;zancun5=minute_count&0xf0;zancun5>>=4;zancun6=minute_count&0x0f;zancun2=zancun5*10+zancun6;// zancun2=minute_count;break;case 2://在显示SET2状态下按S2，进入设置闹钟 zancun1=clock_hour;zancun2=clock_minute;flag1=10;break;case 6://修改时钟小时十位状态下按S2件case 7://修改时钟小时个位状态下按S2件case 8://修改时钟分钟十位状态下按S2件case 9://修改时钟分钟个位状态下按S2件//zancun4=zancun1/10;tab23[2]=zancun1/10*16+zancun1%10;//zancun5=zancun2&0xf0;//zancun5>>=4;tab23[1]=zancun2/10*16+zancun2%10; hour_count=tab23[2];minute_count=tab23[1];second_count=0;tab23[0]=0;set_ds1302();//设置DS1302的初始时间 flag1=0;break;case 10://修改闹钟小时十位状态下按S2case 11://修改闹钟小时个位状态下按S2case 12://修改闹钟分钟十位状态下按S2case 13://修改闹钟分钟个位状态下按S2case 14://修改闹钟使能状态下按S2clock_hour=zancun1;clock_minute=zancun2;clock_en=zancun3;flag1=0;break;case 3:flag1=15;zancun1=countdown_hour; zancun2=countdown_minute; zancun3=countdown_second;break;case 15:case 16:case 17:case 18:case 19:case 20:countdown_hour=zancun1; countdown_minute=zancun2; countdown_second=zancun3; flag1=21;countdown_flag=0;break;case 22:flag1=21;break;case 21:flag1=22;break;case 4:flag1=23;//秒表暂停msecond_minute=0;msecond_second=0;msecond_msecond=0;break;case 23:flag1=24;break;case 24:flag1=23;break;case 5:flag1=25;//进入计数器模式 zancun1=0;zancun2=0;zancun3=0;break;default:break;}while(s2_bit==0){judge_dis();}//等待按键释放}}}//************************************************** //S3按键处理函数void judge_s3(){s3_bit=1;//置IO为1，准备读入收据if(s3_bit==0)//判断是否有按键按下{delay_50us(1);// 延时，去除机械抖动if(s3_bit==0){switch (flag1){case 6://修改时间小时的十位数zancun1+=10;if(zancun1>=24)zancun1=zancun1%10;break;case 7://修改时间小时的个位数zancun1=zancun1/10*10+(zancun1%10+1)%10;break;case 8://修改时间分钟的十位数zancun2+=10;if(zancun2>=60)zancun2-=60;break;case 9://修改时间分钟的个位数zancun2=zancun2/10*10+(zancun2%10+1)%10;break;case 10://修改闹钟小时的十位数zancun1+=10;if(zancun1>=24)zancun1=zancun1%10;break;case 11://修改闹钟小时的个位数zancun1=zancun1/10*10+(zancun1%10+1)%10;break;case 12://修改闹钟分钟的十位数zancun2+=10;if(zancun2>=60)zancun2-=60;break;case 13://修改闹钟分钟的个位数zancun2=zancun2/10*10+(zancun2%10+1)%10;break;case 14:zancun3^=1;break;case 15://修改倒计时小时的十位数zancun1+=10;if(zancun1>=100)zancun1-=100;break;case 16: //修改倒计时小时的个位数zancun1=zancun1/10*10+(zancun1%10+1)%10;break;case 17://修改倒计时分钟的十位数zancun2+=10;if(zancun2>=60)zancun2-=60;break;case 18: //修改倒计时分钟的个位数zancun2=zancun2/10*10+(zancun2%10+1)%10;break;case 19://修改倒计时秒的十位数zancun3+=10;if(zancun3>=60)zancun3-=60;break;case 20: //修改倒计时秒的个位数zancun3=zancun3/10*10+(zancun3%10+1)%10;break;case 21:case 22://countdown_hour=zancun1;countdown_minute=zancun2;countdown_second=zancun3;flag1=21;break;case 23:case 24://秒表复位flag1=24;msecond_minute=0;msecond_second=0;msecond_msecond=0;break;case 25:zancun1++;if(zancun1==100){zancun1=0;zancun2++;if(zancun2==100){zancun2=0;zancun3++;}}break;default:break;}while(s3_bit==0){judge_dis();}//等待按键释放}}}//**************************************** //显示处理函数void judge_clock(){zancun4=hour_count&0xf0;zancun4>>=4;zancun6=hour_count&0x0f;zancun4*=10;zancun4+=zancun6;zancun5=minute_count&0xf0;zancun5>>=4;zancun6=minute_count&0x0f;zancun5*=10;zancun5+=zancun6;if(clock_hour==zancun4 && clock_minute==zancun5) {if(clock_en==1 && clock_flag==0){speak_count=0;//开启蜂鸣器clock_flag=1;speak_count=0;}}else{clock_flag=0;}if(clock_flag==1 && speak_count<400){if(msecond_count<=5){speak=0;speak_count++;}else{speak=1;}}else{speak=1;}}//****************************************////闪烁显示子程序void dis_san(uchar s6,uchar s5,uchar s4,uchar s3,uchar s2,uchar s1,uchar san){if(san==1){if(msecond_count<5){display1(s6);}}else{display1(s6);}if(san==2){if(msecond_count<5){display2(s5);}}else{display2(s5);}if(san==3){if(msecond_count<5){display3(s4);}}elsedisplay3(s4);}if(san==4){if(msecond_count<5){display4(s3);}}else{display4(s3);}if(san==5)if(msecond_count<5){display5(s2);}}else{display5(s2);}if(san==6){if(msecond_count<5){display6(s1);。