51单片机可调的ds1302时钟程序

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MCU:AT89S52 芯片或AT89C522. 晶振:12MHz功能：多功能时钟+温度计/#inelude <reg52. h>#inelude vintrins . h>訂开始 LJ-雲匕®务如1痒3月计ttVl. •呈T』d"吐拠席射■ w耳pg文宇■［豹…SS时軽件思冃说#define uehar #define uint unsigned char unsigned intsbit s1_bit =P1A 0; // 定义S1 控制口 sbit s2_bit =P01； // 定义 S2控制口 sbit s3_bit =P02; // 定义 S3控制口 sbit dq_ds18b20 =P3A3;// 定义控制 DS18B20 sbit speak =P3A7; //定义蜂鸣器控制口sbit clk_ds1302 =P3A6; // 定义控制 DS1302勺时钟线 sbit io_ds1302 =P3A5;//定义控制DS1302勺串行数据 sbit rest_ds1302 =P3A4;#define smg_data P0 //定义数码管数据口void delay_3us(); //3US 的延时程序 void delay_8us(ui nt t);//8US 延时基准程序void delay_50us(ui nt t); //void display1(uchar dis_data); void display2(uchar dis_data); void display3(uchar dis_data); void display4(uchar dis_data); void display5(uchar dis_data); void display6(uchar dis_data);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); 示子程序 void dis_sa n( uchar s6,uchar s5,uchar s4,uchar s3,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 DS130写一个字节的数据 uchar r_1byte_ds1302(); // 从DS130读一个字节的数据//DS18B20测温函数定义延时50*T 微妙函数的声明//数码管1显示子程序 //数码管2显示子程序 //数码管3显示子程序 //数码管4显示子程序 //数码管5显示子程序 //数码管6显示子程序//显 s2,ucharvoid w_1byte_ds18b20(uchar value); // 向DS18B2写一个字节ucharr_1byte_ds18b20( void ); // 从DS18B2读取一个字节的数据voidrest_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_co un t, minu te_c oun t,sec on d_co un t,msec ond_count;uchar clock_hour,clock_m inu te;uchar coun tdow n_sec ond;uchar coun tdow n_hour,co un tdow n_min ute;uchar clock_en; //闹钟关闭和开启的标志，1开启，0关闭uchar flag1,sec on d_flag,za ncun 1,za ncun 2,za ncun3;uchar zancun4 ,za ncun 5,za ncun 6,za ncun7;uchar clock_flag,co un tdow n_flag;uchar msec on d_mi nute,msec on d_sec on d,mseco nd_mseco nd,mseco nd_flag; // 秒表相关参数uint speak_c ount;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]; 〃二{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0msecond_second =0;msec on d_msec ond =0;speak =1;//关闭蜂鸣器speak_co unt =0;clock_hour =0;clock_m inute =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ini t_t0();TRO =1;//// set_ds1302();〃设置DS1302勺初始时间//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 timerO() interrupt 1{TH0=(65536-50000)/256;TL0=(65536 - 50000)%256; t0_crycle ++;if (t0_crycle ==2) // 0.1 秒{t0_crycle =0;msec on d_flag =1;msec ond_count ++;if (msecond_count==10)//1 秒{ _msec on d_co unt =0;sec on d_flag =1;}}}//**************************************************//显示处理函数void judge_dis(){if (flag1 ==0){if (second_flag ==1){ _zancun7 ++;sec on d_flag =0;} _if (zancun7 <1){if (temp_flag2 ==1){ 一readtemp_ds18b20(); // 读取温度temp_flag2 =0;厂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 =sec on d_co unt&0xf0;zancun6 >>=4;dis(za ncun4 ,hour_co unt &0x0f,za ncun5,minu te_co unt &0x0f,za ncun 6,sec ond_ cou nt &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,zancunl %10,zancun2/ 10,zancun2 %0,12,12,1); break;case 7:dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2 %0,12,12,2); break;case 8:dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2 %0,12,12,3); break;case 9: //进入修改时间，时间分位个位闪烁dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2 %0,12,12,4); break;case 10: //进入修改闹钟，闹钟小时十位闪烁dis_san(zancunl / 10,zancunl %10,zancun2/ 10,zancun2 %0,12,zancun3,1); break;case 11://进入修改闹钟，闹钟小时个位闪烁dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2%0,12,zancun3,2); break;case 12: //进入修改闹钟，闹钟小时十位闪烁dis_sa n(zan cu n1 / 10,za ncun1 %10,za ncun 2/ 10,za ncu n2%0,12,za ncun 3,3);break;case 13: //进入修改闹钟，闹钟小时个位闪烁dis_sa n(zan cu n1 / 10,za ncun1 %10,za ncun 2/ 10,za ncu n2%0,12,za ncun 3,4);break;case 14: //进入修改闹钟的开关dis_sa n(zan cu n1 / 10,za ncun1 %10,za ncun 2/ 10,za ncu n2%0,12,za ncun 3,6);break;case 15:dis_sa n(zancun1 / 10,za ncun1 %10,za ncun 2/ 10,za ncun 2%0,za ncun3/ 10,za ncun 3%10,1);break;case 16:dis_san(zancun1 / 10,zancunl %10,zancun2/10,zancun2%0,zancun3/ 10,zancun3%10,2);break;case 17:dis_san(zancun1 / 10,zancunl %10,zancun2/ 10,zancun2%0,zancun3/ 10,zancun 3%10,3);break;case 18:dis_sa n(zancun1 / 10,za ncun1 %10,za ncun 2/ 10,za ncun 2%0,za ncun3/ 10,za ncun 3%10,4);break;case 19:dis_sa n(zancun1 / 10,za ncun1 %10,za ncun 2/ 10,za ncun 2%0,za ncun3/ 10,za ncun 3%10,5);break;case 20:dis_sa n(zancun1 / 10,za ncun1 %10,za ncun 2/ 10,za ncun 2%0,za ncun3/ 10,za ncun 3%10,6);break;case 21:if (second_flag ==1){ _sec on d_flag =0;countdown_second --;if (countdown_second ==255){ _coun tdow n_sec ond =59;countdown_minute --;if (countdown_minute ==255){ _coun tdow n_min ute =59;countdown_hour --;if (countdown_hour ==255){flag1 =22;coun tdow n_min ute =0;coun tdow n_hour =0;coun tdow n_sec ond =0;coun tdow n_flag=1;_ } } } }dis(countdown_hour / 10,countdown_hour %10,countdown_minute / 10,countdown _minute%10,countdown_second/ 10,countdown_second%10); //break; case 22:{ speak =1;}dis(countdown_hour / 10,countdown_hour %10,countdown_minute / 10,countdown _minute%10,countdown_second/ 10,countdown_second%10); //break; case 23: dis(msecond_minute / 10,msecond_minute%10,msecond_second/ 10,msecond_sec on d%10,mseco nd_msec on d%0,12);break; case 24:if (msecond_flag ==1) { _msec on d_flag =0; msec on d_msec ond ++;if (msecond_msecon (==10){msec on d_msec ond =0; msec on d_sec ond ++;if (msecond_second==60) { _msecond_second =0; msec ond_minute ++;if (countdown_flag { _speak=0;if (second_flag { _sec on d_flag coun tdow n_flag} _ } else>0 &&countdown_flag <7)==1) =0； ++；if (msecond_minute==1OO) { _msec ond_minute =99;flagl =23;}}}}dis(msecond_minute / 10,msecond_minute%10,msecond_second/ 10,msecond_sec on d%10,mseco nd_msec on d%0,12);break;case 25:dis(zancun3 / 10,zancun3 %0,zancun2 / 10,zancun2 %10,zancun1 /10,zancun1 %0 );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=0;{delay_50us(1); //延时，去除机械抖动 if (s2_bit ==0) { switch (flagl) { flag1 =6; zancun4 =hour_count &0xf0;zancun4 >>=4; zancun6 =hour_count &0x0f;zancun1=zancun4*10+zancun6; //zancun 1=hour_co unt; zancun5 =minute_count &0xf0; zancun5 >>=4; zancun6 =minute_count &0x0f; zancun2 =za ncun5* 10+za ncun6; case 1: //在显示SET 状态下按S2牛，进入修改时间 // zancun2=minu te_co unt; break; case 2: //在显示SET2犬态下按S2,进入设置闹钟 zancunl =clock_hour; zancun2 =clock_m inu te; flagl =10; break; case 6: //修改时钟小时十位状态下按 case 7: //修改时钟小时个位状态下按 case 8: //修改时钟分钟十位状态下按 case 9: //修改时钟分钟个位状态下按 〃zancun4=za ncun 1/10; 测S:SM tab23[2] =zancun1/10* 16+za ncu n1%10; tab23[1] hour_c ount minu te_c ount sec ond_co unt tab23[0]set_ds1302(); flag1//zancun 5=za ncun2&0 xf0; //zancun 5>>=4; =zancun2/10* 16+za ncu n2%10; =tab23[2]; =tab23[1]; =0; //设置DS130的初始时间 =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S2 case 13: //修改闹钟分钟个位状态下按S2 case 14: //修改闹钟使能状态下按S2clock_hour clock_m inute clock_e n flag1=zancun1; =zancun2; =zancun3;=0;break;case 3:flagl =15;zancunl =co un tdow n_hour;zancun2 =co un tdow n_minu te;zancun3 =co un tdow n_sec ond;break;case 15:case 16:case 17:case 18:case 19:case 20:coun tdow n_hour =zancun1;coun tdow n_minute =za ncun2;coun tdow n_sec ond =za ncun3;flag1 =21;coun tdow n_flag =0;break;case 22:flag1 =21;break;case 21:flag1 =22;break;case 4:flag1 =23; //秒表暂停msec ond_minute =0;msecond_second =0;msec on d_msec ond =0;break;case 23:flag1 =24;break;case 24:flag1 =23;break;case 5:flagl =25;//进入计数器模式zancunl =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 =zancun 1%10;break;case 7: //修改时间小时的个位数za ncun1 =za ncu n1/10* 10+(za ncun1 %10+1) %10;if (zancun1 >=24)zancun1 =20;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za ncun2 =za ncun2/10* 10+(za ncun2 %10+1) %10;break;case 10: //修改闹钟小时的十位数zancunl +=10;if (zancunl >=24)zancunl =zancun 1%10; break;case 11: //修改闹钟小时的个位数zancunl =za ncu n1/10* 10+(za ncun1 %10+1) %10;if (zancun1 >=24)zancun1 =20;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zan cu n2 =za ncun2/10* 10+(za ncun2 %10+1) %10;break;case 14:zancun3 A=1;break;case 15: //修改倒计时小时的十位数zancun1 +=10;if (zancun1 >=100)zancun 1 -=100; break;case 16: //修改倒计时小时的个位数zancun1 =za ncu n1/10* 10+(za ncun1 %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zan cu n2 =za ncun2/10* 10+(za ncun2 %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zan cu n3 =za ncun3/10* 10+(za ncun3 %10+1) %10;break;case 21:case 22: //coun tdow n_hour =zancun1;coun tdow n_minute =za ncun2;coun tdow n_sec ond =za ncun3;flagl =21;break;case 23:case 24: //秒表复位flag1 =24;msec ond_minute =0;msecond_second =0;msec on d_msec ond =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 +=za ncun6;zancun5=minute_count &0xf0;if (san ==1){zancun5 >>=4;zancun6 =minute_count &0x0f;zancun5 *=10;zancun5 +=za ncun6;if (msecond_count<=5) {speak =0; speak_co unt ++;}else{speak =1;}}else{speak =1;}}〃****************************************////闪烁显示子程序void dis_sa n( uchar s6,uchar s5,uchar s4,uchar s3,uchars1,uchar san){if (clock_hour ==zancun4 &&clock_minute ==zancun5){ 一 一if (clock_en { _ speak_co unt clock_flag speak_co unt} _ } else{clock_flag =0;} _if{ (clock_flag ==1 ==1&&clock_flag ==0)=0; //开启蜂鸣器=1;=0;&&speak_count <400)s2,ucharif (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);}}else{display3(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);}}else{ display6(s1);}}〃****************************************//时钟显示程序void dis(uchar s6,uchar s5,uchar s4,uchar s3,uchar s2,uchar s1) { display1(s6);display2(s5);display3(s4);display4(s3);display5(s2);display6(s1);}〃********************************************************************************************void init_tO(){ _TMOD0x01;〃设定定时器工作方式1,定时器定时50毫秒TH0=(65536-50000)/256;TL0=(65536- 50000)%256;EA=1; //开总中断ET0=1; //允许定时器0中断t0_crycle =0; //定时器中断次数计数单元}//LED处理函数void dis_led(){if (msecond_count<5){ _Ied1_bit =1;Ied2_bit =1;}else{led1_bit =0;led2_bit =0;}}〃***************************************************************//功能：把数据1显示在数码管1上void display6(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit6 =0; // 锁存数据delay_50us(40); dis_bit6 =1;}〃***************************************************************//功能：把数据1显示在数码管1上void display5(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit5 =0; // 锁存数据delay_50us(40);dis_bit5 =1;} _〃***************************************************************//功能：把数据1显示在数码管1上void display4(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit4 =0; // 锁存数据delay_50us(40);dis_bit4 =1;} 〃***************************************************************//功能：把数据1显示在数码管1上void display3(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit3 =0; // 锁存数据delay_50us(40);dis_bit3 =1;}〃***************************************************************//功能：把数据1显示在数码管1上void display1(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit1 =0; // 锁存数据delay_50us(40);dis_bit1 =1;}〃***************************************************************//功能：把数据1显示在数码管1上void display2(uchar dis_data){ _smg_data =tabl1[dis_data]; // 送显示断码dis_bit2 =0; // 锁存数据delay_50us(40);dis_bit2 =1;}〃******************************************************************* *******************************// 函数名称：void delay_50US(unsigned int t)//功能：延时50*t(us)void delay_50us(uint t){ _unsigned char j;for (;t >0;t --){for (j =19;j >0;j --);}}〃******************************************************************* ************〃8微秒延时基准程序void delay_8us(uint t){while (-- t);}************〃3微秒延时程序void delay_3us() {}〃******************************************************************* ************//子程序功能：向DS18B2写一字节的数据void w_1byte_ds18b20(uchar value){uchar i =0;for (i =0;i <8;i ++){dq_ds18b20 =1;delay_3us();dq_ds18b20 =0; delay_8us(2);if ( value & 0x01) dq_ds18b20 =1; 〃DQ = 1 delay_50us(1); // 延时50us 以上delay_8us(2);value >>=1;}dq_ds18b20 =1; //DQ = 1}//读一个字节uchar r_1byte_ds18b20( void){ 一一uchar i =0;uchar value = 0;for (i =0;i <8;i ++){value >>=1;dq_ds18b20 =0;// DQ_L;delay_3us();dq_ds18b20 =1; 〃DQ_H;delay_8us(2);if (dq_ds18b20==1) value |= 0x80;delay_8us(6); // 延时40us}dq_ds18b20 =1;return value ;}11 ・**************************************************〃ds18b20复位子程序void rest_ds18b20( void){rest:delay_3us(); // 稍做延时delay_3us();dq_ds18b20 =1;delay_3us();dq_ds18b20 =0;// DQ_L; delay_50us(11); 〃480us<T<960usdq_ds18b20 =1; // 拉高总线delay_8us(5);if (dq_ds18b20==1){return ;}delay_50us(2); // 延时90usif (dq_ds18b20==1){return ;}else{goto rest;}}〃****************************************************//读取温度void readtemp_ds18b20( void){ _uchar temp32;rest_ds18b20();w_1byte_ds18b20(0xcc); //跳过读序列号的操作w_1byte_ds18b20(0x44); // 启动温度转换delay_8us(2);rest_ds18b20();w_1byte_ds18b20(0xcc); //跳过读序列号的操作w_1byte_ds18b20(0xbe); //读取温度寄存器等(共可读9个寄存器)前两个就是温度templ =r_1byte_ds18b20();temph =r_1byte_ds18b20();if ((temph &0xf0)) //判断温度的正负性{temp_flag =0; //温度为负数标志temph =-temph;tempi =-templ;t_x =tabl3[templ & OxOf]; // 计算温度的小数temp32 =temph & OxOf;temp32 <<=4;tempi >>=4;temp32 =temp32 | tempi;t_b =temp32/100%10; //计算温度的百位数据t_s =temp32/10%0;〃计算温度的十位数据t_g =temp32%0;〃计算温度的个位数据5else //为正数{t_x =tabl3[templ & 0x0f]; // 计算温度的小数temp32 =temph & 0x0f;temp32 <<=4;templ >>=4;temp32 =temp32 | templ;t_b =temp32/100%10; //计算温度的百位数据t_s =temp32/10%0;〃计算温度的十位数据t_g =temp32%0;〃计算温度的个位数据temp_flag =1;} _}void dis_temp() //温度显示函数{ _if (temp_flag =1){ _if (t_b ==0){dis(12,12,t_s,t_g,13,12);}else{dis(12,t_b,t_s,t_g,13,12);}}else{dis(14,t_b,t_s,t_g,13,12);}}/ / """""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" / / , ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ############ //;子程序名：w_1byte_ds1302//；功能：向DS130写一个字节的数据void w_1byte_ds1302(uchar t){uchar i;for (i =0;i <8;i ++){if (t & 0x01){io_ds1302=1;}else{io_ds1302 =0;}clk_ds1302 =1;delay_3us();delay_3us();clk_ds1302 =0;delay_3us();delay_3us();t >>=1;}}/ / , ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ######//;子程序名：r_1byte_ds1302()//;功能：从DS130读一个字节的数据uchar r_1byte_ds1302(){ 一一uchar i,temp11 =0;io_ds1302 =1;//置10为1,准备读入数据for (i =0;i <8;i ++){temp11 >>=1;if (io_ds1302) temp11 |= 0x80;clk_ds1302 =1;delay_3us();delay_3us();clk_ds1302 =0;delay_3us();}return (temp11);}/ / """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""/ / , JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ JJ """""""""""""""ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff//;子程序名：setbds1302//;功能：设置DS130初始时间,并启动计时void set_ds1302(){uchar i,j;rest_ds1302 =0;delay_3us();clk_ds1302 =0;delay_3us();rest_ds1302 =1;delay_3us();w_1byte_ds1302(0x8e); // 写控制命令字delay_3us();w_1byte_ds1302(0x00); // 写保护关闭clk_ds1302 =1;delay_3us();for (i =0,j =0x80;i <7;i ++,j +=2){rest_ds1302 =0;delay_3us();clk_ds1302 =0;delay_3us();rest_ds1302 =1;delay_3us();w_1byte_ds1302(j);delay_3us();w_1byte_ds1302(tab23[i]);delay_3us();delay_3us();clk_ds1302 =1;delay_3us();rest_ds1302 =0;delay_3us();delay_3us();} _rest_ds1302 =0;delay_3us();clk_ds1302 =0;delay_3us();rest_ds1302 =1;delay_3us();w_1byte_ds1302(0x8e); delay_3us();w_1byte_ds1302(0x80); clk_ds1302 =1;delay_3us();rest_ds1302 =0;delay_3us();}/ / """"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""" / / , ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff //；子程序名：get1302void get_ds1302(){ _uchar temp11[7],i,j;for (i =0;i <7;i ++){temp11[i] =0;}for (i =0,j =0x81;i <7;i ++,j +=2){rest_ds1302 =0;delay_3us();clk_ds1302 =0;delay_3us();delay_3us();w_1byte_ds1302(j);temp11[i] =r_1byte_ds1302();delay_3us();clk_ds1302 =1;delay_3us();rest_ds1302 =0;delay_3us();} _if (temp11[0] != 0xff){second_count =temp11[0]; }if (temp11[1] != 0xff) // 数据验证{minute_count =temp11[1]; }if (temp11[2] != 0xff) // 数据验证{hour_count =temp11[2]; }// date=temp[3];//mon th=temp[4];// week=temp[5];//year=temp[6];}/*===================================================================调试要求：1. MCU:AT89S52 芯片或AT89C522. 晶振:12MHz功能：多功能时钟+温度计/#inelude <reg52. h>#inelude vintrins . h>sbit dis_bit1 =P2A 7; //定义数码管控制口sbit dis_bit2 =卩2八6;//定义数码管控制口sbit dis_bit3 =卩2八4;//定义数码管控制口sbit dis_bit4 =卩2八3;//定义数码管控制口sbit dis_bit5 =卩2八1； //定义数码管控制口sbit dis_bit6 =P2A0； //定义数码管控制口sbit led1_bit =卩2八2; // 定时 LED 勺控制口sbit led2_bit =卩2八5; // 定时 LED 勺控制口sbit s1_bit =P1A0; // 定义S1 控制口sbit s2_bit =P01； // 定义 S2空制口sbit s3_bit =P02; // 定义 S3控制口sbit dq_ds18b20 =P3A3;// 定义控制 DS18B20 sbit speak =P3A7; //定义蜂鸣器控制口sbit clk_ds1302 =P3A6; // 定义控制 DS1302勺时钟线 sbit io_ds1302 =P3A5;//定义控制DS1302勺串行数据sbit rest_ds1302 =P3A4;#define smg_data P0 //定义数码管数据口 void delay_3us(); //3US 的延时程序 void delay_8us(ui nt t); //8US 延时基准程序void delay_50us(ui nt t); // void display1(uehardis_data); voiddisplay2(uehar dis_data); void display3(uehar dis_data); void display4(uehar dis_data); void display5(uehar dis_data); void display6(uehar dis_data);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(uehar s6,uehar s5,uehar s4,uehar s3,uehar s2,uehar s1); 示子程序 void dis_sa n( uchar s6,uehar s5,uehar s4,uehar s3,uehars1,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#define uehar#define uintunsigned char unsigned int延时50*T 微妙函数的声明//数码管1显示子程序 //数码管2显示子程序 //数码管3显示子程序//数码管4显示子程序//数码管5显示子程序//数码管6显示子程序 //显s2,ueharvoid w_1byte_ds1302(uchar t); // 向DS130写一个字节的数据uchar r_1byte_ds1302(); // 从DS130读一个字节的数据〃*******************************************************************//DS18B20测温函数定义void w_1byte_ds18b20(uchar value); // 向DS18B2写一个字节ucharr_1byte_ds18b20( void ); // 从DS18B2读取一个字节的数据voidrest_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_co un t, minu te_c oun t,sec on d_co un t,msec ond_count;uchar clock_hour,clock_m inu te;uchar coun tdow n_sec ond;uchar coun tdow n_hour,co un tdow n_min ute;uchar clock_en; //闹钟关闭和开启的标志，1开启，0关闭uchar flag1,sec on d_flag,za ncun 1,za ncun 2,za ncun3;uchar zancun4 ,za ncun 5,za ncun 6,za ncun7;uchar clock_flag,co un tdow n_flag;uchar msec on d_mi nute,msec on d_sec on d,mseco nd_mseco nd,mseco nd_flag; // 秒表相关参数uint speak_c ount;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，小数位上电时默认的uchar tab23[3]; 〃二{0x40,0x59,0x23,0x28,0x11,0x06,0x09};//时间//主程序void main(){P3 =0x00;flag1 =0;zancun3 =0;msecond_minute =0; //置秒表相关参数为0msecond_second =0;msec on d_msec ond =0;speak =1;//关闭蜂鸣器speak_co unt =0;clock_hour =0;clock_m inute =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ini t_t0();TR0 =1;//// set_ds1302();〃设置DS130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) // 0.1 秒{t0_crycle =0;msec on d_flag =1;msec ond_count ++;if (msecond_count==10)//1 秒。

采用51单片机控制的DS1302时钟程序/*********************************************************************/ /* 实时时钟模块时钟芯片型号：DS1302 *//*//*********************************************************************/ sbit T_CLK = P2^7; /*实时时钟时钟线引脚 */sbit T_IO = P1^4; /*实时时钟数据线引脚 */sbit T_RST = P1^5; /*实时时钟复位线引脚 *//******************************************************************** ** 名称: v_RTInputByte* 说明:* 功能: 往DS1302写入1Byte数据* 调用:* 输入: ucDa 写入的数据* 返回值: 无***********************************************************************/ void v_RTInputByte(uchar ucDa){uchar i;ACC = ucDa;for(i=8; i>0; i--){T_IO = ACC0; /*相当于汇编中的 RRC */T_CLK = 1;T_CLK = 0;ACC = ACC >> 1;}}/******************************************************************** ** 名称: uchar uc_RTOutputByte* 说明:* 功能: 从DS1302读取1Byte数据* 调用:* 输入:* 返回值: ACC***********************************************************************/ uchar uc_RTOutputByte(void){uchar i;for(i=8; i>0; i--){ACC = ACC >>1; /*相当于汇编中的 RRC */ACC7 = T_IO;T_CLK = 1;T_CLK = 0;}return(ACC);}/******************************************************************** ** 名称: v_W1302* 说明: 先写地址，后写命令/数据* 功能: 往DS1302写入数据* 调用: v_RTInputByte()* 输入: ucAddr: DS1302地址, ucDa: 要写的数据* 返回值: 无***********************************************************************/ void v_W1302(uchar ucAddr, uchar ucDa){T_RST = 0;T_CLK = 0;T_RST = 1;v_RTInputByte(ucAddr); /* 地址，命令 */v_RTInputByte(ucDa); /* 写1Byte数据*/T_CLK = 1;T_RST =0;}/******************************************************************** ** 名称: uc_R1302* 说明: 先写地址，后读命令/数据* 功能: 读取DS1302某地址的数据* 调用: v_RTInputByte() , uc_RTOutputByte()* 输入: ucAddr: DS1302地址* 返回值: ucDa :读取的数据***********************************************************************/ uchar uc_R1302(uchar ucAddr){uchar ucDa;T_RST = 0;T_CLK = 0;T_RST = 1;v_RTInputByte(ucAddr); /* 地址，命令 */ucDa = uc_RTOutputByte(); /* 读1Byte数据 */T_CLK = 1;T_RST =0;return(ucDa);}/******************************************************************** ** 名称: v_BurstW1302T* 说明: 先写地址，后写数据(时钟多字节方式)* 功能: 往DS1302写入时钟数据(多字节方式)* 调用: v_RTInputByte()* 输入: pSecDa: 时钟数据地址格式为: 秒分时日月星期年控制* 8Byte (BCD码) 1B 1B 1B 1B 1B 1B 1B 1B* 返回值: 无***********************************************************************/ void v_BurstW1302T(uchar *pSecDa){uchar i;v_W1302(0x8e,0x00); /* 控制命令,WP=0,写操作?*/T_RST = 0;T_CLK = 0;T_RST = 1;v_RTInputByte(0xbe); /* 0xbe:时钟多字节写命令 */for (i=8;i>0;i--) /*8Byte = 7Byte 时钟数据 + 1Byte 控制*/{v_RTInputByte(*pSecDa);/* 写1Byte数据*/pSecDa++;}T_CLK = 1;T_RST =0;}/******************************************************************** ** 名称: v_BurstR1302T* 说明: 先写地址，后读命令/数据(时钟多字节方式)* 功能: 读取DS1302时钟数据* 调用: v_RTInputByte() , uc_RTOutputByte()* 输入: pSecDa: 时钟数据地址格式为: 秒分时日月星期年* 7Byte (BCD码) 1B 1B 1B 1B 1B 1B 1B* 返回值: ucDa :读取的数据***********************************************************************/ void v_BurstR1302T(uchar *pSecDa){uchar i;T_RST = 0;T_CLK = 0;T_RST = 1;v_RTInputByte(0xbf); /* 0xbf:时钟多字节读命令 */for (i=8; i>0; i--){*pSecDa = uc_RTOutputByte(); /* 读1Byte数据 */pSecDa++;}T_CLK = 1;T_RST =0;}/******************************************************************** ** 名称: v_BurstW1302R* 说明: 先写地址，后写数据(寄存器多字节方式)* 功能: 往DS1302寄存器数写入数据(多字节方式)* 调用: v_RTInputByte()* 输入: pReDa: 寄存器数据地址* 返回值: 无***********************************************************************/ void v_BurstW1302R(uchar *pReDa){uchar i;v_W1302(0x8e,0x00); /* 控制命令,WP=0,写操作?*/T_RST = 0;T_CLK = 0;T_RST = 1;v_RTInputByte(0xfe); /* 0xbe:时钟多字节写命令 */for (i=31;i>0;i--) /*31Byte 寄存器数据 */{v_RTInputByte(*pReDa); /* 写1Byte数据*/pReDa++;}T_CLK = 1;T_RST =0;}/******************************************************************** ** 名称: uc_BurstR1302R* 说明: 先写地址，后读命令/数据(寄存器多字节方式)* 功能: 读取DS1302寄存器数据* 调用: v_RTInputByte() , uc_RTOutputByte()* 输入: pReDa: 寄存器数据地址* 返回值: 无***********************************************************************/ void v_BurstR1302R(uchar *pReDa){uchar i;T_RST = 0;T_CLK = 0;T_RST = 1;v_RTInputByte(0xff); /* 0xbf:时钟多字节读命令 */for (i=31; i>0; i--) /*31Byte 寄存器数据 */{*pReDa = uc_RTOutputByte(); /* 读1Byte数据 */pReDa++;}T_CLK = 1;T_RST =0;}/******************************************************************** ** 名称: v_Set1302* 说明:* 功能: 设置初始时间* 调用: v_W1302()* 输入: pSecDa: 初始时间地址。

#include <reg52.h>#include <intrins.h>#include <string.h>#define uint unsigned int#define uchar unsigned charsbit led = P2^3;//led代替闹铃sbit IO = P1^3; //定义1302管脚//6sbit SCLK = P1^4;//7sbit RST = P1^5; //5sbit RS = P2^2;//定义1602管脚sbit RW = P2^1;sbit EN = P2^0;sbit key1=P3^4;//选择//调时键盘sbit key2=P3^5;//加sbit key3=P3^6;//减sbit key4=P3^7;//确定sbit key11=P1^6;//选择//闹钟键盘sbit key22=P1^7;//加sbit key33=P3^0;//减sbit key44=P3^1;//确定uchar x1=0,x;int hour=8,minute=0;//闹钟的初始时间8:00uchar DateTime[9]; //秒，分，时，日，周，月，年 address,uchar lcd1[]={"DATE 00-00-00 "};uchar lcd2[]={"TIME 00:00:00 "};/***************延时*************/void delayms(uchar x)//延时毫秒程序{ uchar i,j;for(i=x;i>0;i--)for(j=110;j>0;j--);}void delayus(uchar x)//延时微秒程序{ uchar i;for(i=0;i<x;i++);}/********1302的驱动程序***********///写入数据,dat:要写入的数据void DS1302WriteByte(uchar dat){uchar i;SCLK=0;//初始时钟线置为0delayus(2);for(i=0;i<8;i++)//开始传输8个字节的数据{IO=dat&0x01;//取最低位，注意DS1302的数据和地址都是从最低位开始传输的delayus(2);SCLK=1;//时钟线拉高，制造上升沿，SDA的数据被传输delayus(2);SCLK=0;//时钟线拉低，为下一个上升沿做准备dat>>=1;//数据右移一位，准备传输下一位数据}}/********1302的驱动程序**********///功能: 读取数据,dat:读取的数据uchar DS1302ReadByte(){ uchar i;uchar dat;delayus(2);for(i=0;i<8;i++){dat>>=1;//要返回的数据左移一位if(IO==1)//当数据线为高时，证明该位数据为1dat|=0x80;//要传输数据的当前值置为1,若不是,则为0SCLK=1;//拉高时钟线delayus(2);SCLK=0;//制造下降沿delayus(2);}return dat;//返回读取出的数据/16*10+dat%16}/*********1302的驱动程序*********///从cmd相应地址中读取一个字节的数据uchar DS1302Read(uchar cmd)//cmd:要写入的控制字节,dat:读取的数据{uchar dat;RST=0;//初始CE线置为0SCLK=0;//初始时钟线置为0RST=1;//初始CE置为1，传输开始DS1302WriteByte(cmd);//传输命令字，要读取的时间/日历地址dat=DS1302ReadByte();//读取要得到的时间/日期SCLK=1;//时钟线拉高RST=0;//读取结束，CE置为0，结束数据的传输return dat;//返回得到的时间/日期}/**********1302的驱动程序*********///向cmd相应地址中写一个字节的数据void DS1302Write(uchar cmd, uint dat)//cmd:要写入的控制字,dat:要写入的数据{RST=0; //初始CE线置为0SCLK=0; //初始时钟线置为0RST=1; //初始CE置为1，传输开始DS1302WriteByte(cmd); //传输命令字，要写入的时间/日历地址DS1302WriteByte(dat); //写入要修改的时间/日期SCLK=1; //时钟线拉高RST=0; //读取结束，CE置为0，结束数据的传输}/*************初始化ds1302********///给1302写入日期和时钟的值void chushihuaDS1302(void){DS1302Write(0x8e,0x00);//写保护关DS1302Write(0x80,0x10); //初始秒DS1302Write(0x82,0x02);//初始分钟DS1302Write(0x84,0x15); //初始为24小时模式,初始时DS1302Write(0x86,0x01); //1日DS1302Write(0x88,0x08);//8月DS1302Write(0x8c,0x13);//2013年DS1302Write(0x8a,0x04);//星期4// DS1302Write(0x90,0x01); //充电//DS1302Write(0xc0,0xf0); //初始化一次标示//DS1302Write(0x8e,0x80);//写保护开}/************以下是1602的程序******************//******************************///向1602内写命令void write_order(uchar order){RS=0;P0=order;delayms(5);EN=1;delayms(5);EN=0;}/******************************///向1602内写数据void write_date(uchar date){RS=1;P0=date;delayms(5);EN=1;delayms(5);EN=0;}/******************************///lcd1602的初始化void chushihuaLCD1602(){ EN=0;write_order(0x38);write_order(0x0c);write_order(0x06);write_order(0x01);}/*************其他操作*****************/void gettime(){ uchar i,n;for(i=0,n=1;i<7,n<15;i++,n=n+2){ DateTime[i]=DS1302Read(0x80+n);delayus(1);}}void zhuanhuan(){ gettime();lcd1[5]=((DateTime[6]>>4)+0x30);lcd1[6]=((DateTime[6]&0x0f)+0x30);delayus(2);//年lcd1[14]=((DateTime[5]>>4)+0x30);lcd1[15]=((DateTime[5]&0x0f)+0x30);delayus(2);//周lcd1[11]=((DateTime[3]>>4)+0x30);lcd1[12]=((DateTime[3]&0x0f)+0x30);delayus(2);//日lcd1[8]=((DateTime[4]>>4)+0x30);lcd1[9]=((DateTime[4]&0x0f)+0x30);delayus(2);//月lcd2[5]=((DateTime[2]>>4)+0x30);lcd2[6]=((DateTime[2]&0x0f)+0x30);delayus(2);//时lcd2[8]=((DateTime[1]>>4)+0x30);lcd2[9]=((DateTime[1]&0x0f)+0x30);delayus(2);//分lcd2[11]=((DateTime[0]>>4)+0x30);lcd2[12]=((DateTime[0]&0x0f)+0x30);delayus(2);//秒if(DateTime[7]==DateTime[2] & DateTime[8]==DateTime[1]){led = 1;delayms(150);led = 0;}/**/}/***********************/void jianpan() //键盘调时{ uchar x2,address,max,min;int item;if(key1==0){ delayms(10);if(key1==0){ x1++;if(x1>=7) x1=1;switch(x1){ case 1: lcd2[15]='Y';x2=1;address=0x8c; max=99;min=0;break;//年case 2: lcd2[15]='M';x2=2;address=0x88; max=12;min=1;break;//月case 3: lcd2[15]='D';x2=3;address=0x86; max=31;min=1;break;//天case 4: lcd2[15]='H';x2=4;address=0x84; max=23;min=0;break;//时case 5: lcd2[15]='F';x2=5;address=0x82; max=59;min=0;break;//分case 6: lcd2[15]='W';x2=6;address=0x8A; max=7;min=1;break;//周}}while(!key1);}item=(DS1302Read(address+1)/16)*10 + (DS1302Read(address+1))%16;if(key2==0){ delayms(10);if(key2==0){ if(x2==1) {item++;}else if(x2==2) {item++;}else if(x2==3) {item++;}else if(x2==4) {item++;}else if(x2==5) {item++;}else if(x2==6) {item++;}}while(!key2);}if(key3==0){ delayms(10);if(key3==0){ if(x2==1) {item--;}else if(x2==2) {item--;}else if(x2==3) {item--;}else if(x2==4) {item--;}else if(x2==5) {item--;}else if(x2==6) {item--;}}while(!key3);}if(key4==0){ delayms(10);if(key4==0){ lcd2[15]=' ';x1=0;x2=0;}while(!key4);}//led=0;delayms(5000);led=1;if(item>max) item=min;if(item<min) item=max;DS1302Write(0x8e,0x00);//允许写操作delayms(10);DS1302Write(address,(item/10)*16+item%10); //写入DS1302 //转成BCD码delayms(20);DS1302Write(0x8e,0x80);//写保护,禁止写操作}void naozhong()//设定闹钟{ uchar da,xiao,i;if(key11==0){ delayms(10);if(key11==0){ x++;if(x>=4) x=1;switch(x){case 2: lcd2[13]='H';i=1;da=23;xiao=0;lcd2[14]=((hour>>4)+0x30);lcd2[15]=((hour&0x0f)+0x30);delayus(2);break;//时case 1: lcd2[13]='M';i=2;da=59;xiao=0;lcd2[14]=((minute>>4)+0x30);lcd2[15]=((minute&0x0f)+0x30);delayus(2);break;//分case 3: lcd2[13]=' ';lcd2[14]=' ';lcd2[15]=' ';x=0;i=0;break;}}while(!key11);}if(key22==0){ delayms(10);if(key22==0){ if(i==1){ hour=((hour/16)*10)+(hour%16);hour++;if(hour>da) hour=xiao;hour=(hour/10)*16+hour%10;lcd2[14]=((hour>>4)+0x30);lcd2[15]=((hour&0x0f)+0x30);delayus(2);}else if(i==2){ minute=((minute/16)*10)+(minute%16);minute++;if(minute>da) minute=xiao;minute=(minute/10)*16+minute%10;lcd2[14]=((minute>>4)+0x30);lcd2[15]=((minute&0x0f)+0x30);delayus(2);}}while(!key22);}if(key33==0){ delayms(10);if(key33==0){ if(i==1){ hour=((hour/16)*10)+(hour%16);hour--;if(hour<xiao) hour=da;hour=(hour/10)*16+hour%10;lcd2[14]=((hour>>4)+0x30);lcd2[15]=((hour&0x0f)+0x30);delayus(2);}else if(i==2){ minute=((minute/16)*10)+(minute%16);minute--;if(minute<xiao) minute=da;minute=(minute/10)*16+minute%10;lcd2[14]=((minute>>4)+0x30);lcd2[15]=((minute&0x0f)+0x30);delayus(2);}}while(!key33);}DateTime[7]=hour;DateTime[8]=minute;}/**/void wzd0() interrupt 0//外部中断0{jianpan();//}void wzd1() interrupt 2//外部中断1{naozhong();}void main(){uchar k;EA=1;EX0=1;IT0=1;PX0=1;EX1=1;IT1=1;PX1=0;RW=0;led=0;chushihuaLCD1602();if( (DS1302Read(0x81) & 0x80) ) chushihuaDS1302();//chushihuaDS1302();while(1){zhuanhuan();write_order(0x80);//lcd的第一行for(k=0;k<16;k++){ write_date(lcd1[k]);delayus(2);}write_order(0x80+0x40);//lcd的第二行for(k=0;k<16;k++){ write_date(lcd2[k]);delayus(2);}}}。

/*****************************************************///DS1302+数码管+3个独立按键//// 精确定时/////*****************************************************/ /****************************************************************/// 利用ds1302精确定时，同时按键可调时间。

//// 每操作一次时钟，都会有蜂鸣器响大约200ms，以提示操作。

///***************************************************************/#include<reg52.h>#include"ds1302.h"uchar code tab[]={ 0x3F,/*0*/0x06,/*1*/0x5B,/*2*/0x4F,/*3*/0x66,/*4*/0x6D,/*5*/0x7D,/*6*/0x07,/*7*/0x7F,/*8*/0x6F,/*9*/} ;//共阴码char clock1[3]={0};int i,j=0,flag1=0;void delay(uint xms){uint x,y;for(x=xms;x>0;x--)for(y=110;y>0;y--);}void init()//初始化{//RST=0;//SCLK=0;//write_1302(0x80,0x00);//写控制字，允许写//write_1302(0x90,0x00);//禁止涡流充电TMOD=0x01;TH0=(65536-50000)/256;TL0=(65536-50000)%256;EA=1;ET0=1;TR0=1;}void display(uchar miaog,uchar miaos,uchar feng,uchar fens,uchar shig,uchar shis)//数码管动态显示{P2=0x7f;P0=tab[miaog];delay(5);P2=0xbf;P0=tab[miaos];delay(5);P2=0xdf;P0=0xc0;delay(5);P2=0xef;P0=tab[feng];delay(5);P2=0xf7;P0=tab[fens];delay(5);P2=0xfb;P0=0xc0;delay(5);P2=0xfd;P0=tab[shig];delay(5);P2=0xfe;P0=tab[shis];delay(5);}write_sfm(uchar miao,uchar fen,uchar shi) //写入到数码管{uchar miaog,miaos,feng,fens,shig,shis;miaog=miao%10;miaos=miao/10;feng=fen%10;fens=fen/10;shig=shi%10;shis=shi/10;display(miaog,miaos,feng,fens,shig,shis);}void didi() //发声程序{buzzer=0;delay(50);buzzer=1;}void keyscan()//按键扫描程序{uchar temp;if(key1==0) //功能键{if(key1==0){while(!key1);key1n=key1n++;if(key1n==5)key1n=1;switch(key1n){case 1://didi();temp=(miao)/10*16+(miao)%10;//将秒转化成bcd码，没这句秒就变化，不知为什么write_1302 (0x8e,0x00); //禁止写保护write_1302 (0x80,0x80|temp); //时钟暂停write_1302 (0x8e,0x80); //允许写保护break;case 2 ://didi();break;case 3 ://didi();break;case 4 ://didi();temp=miao/10*16+miao%10;write_1302 (0x8e,0x00); //禁止写保护write_1302 (0x80,0x00|temp);//时钟开始write_1302 (0x8e,0x80); //允许写保护break;}}}if(key4==0) //闹钟键{if(key4==0){while(!key4);keyn++;if(keyn==4)keyn=0;while(keyn){EA=0; //闹钟键if(key4==0)if(key4==0){while(!key4);keyn++;if(keyn==4)keyn=0;}write_sfm(clock1[2],clock1[1],clock1[0]);if(keyn==1) //时修改{if(key3==0) //减键{//delay(3);if(key3==0){while(!key3);clock1[0]--;if(clock1[0]<0)clock1[0]=24;}}if(key2==0) //加键{//delay(3);if(key2==0){while(!key2);clock1[0]++;if(clock1[0]>24)clock1[0]=0;}}}if(keyn==2) //分修改{if(key3==0) //减键{//delay(3);if(key3==0){while(!key3);clock1[1]--;if(clock1[1]<0)clock1[1]=59;}}if(key2==0) //加键{//delay(3);if(key2==0){while(!key2);clock1[1]++;if(clock1[1]>59)clock1[1]=0;}}}if(keyn==3) //秒修改{if(key3==0) //减键{//delay(3);if(key3==0){while(!key3);clock1[2]--;if(clock1[2]<0)clock1[2]=59;}}if(key2==0) //加键{//delay(3);if(key2==0){while(!key2);clock1[2]++;if(clock1[2]>59)clock1[2]=0;}}}}} EA=1;}if(key1n!=0) //当按下功能键key1，按以下才有用{if(key2==0) //加键{delay(3);if(key2==0){while(!key2);switch(key1n){case 1 : //didi(); //秒temp=(miao+1)/10*16+(miao+1)%10;if(miao==59)temp=0;write_1302 (0x8e,0x00); //禁止写保护write_1302 (0x80,0x80|temp);write_1302 (0x8e,0x80); //允许写保护break;case 2 : // didi(); //分temp=(fen+1)/10*16+(fen+1)%10;if(fen==59)temp=0;write_1302 (0x8e,0x00); //禁止写保护write_1302 (0x82,temp);write_1302 (0x8e,0x80); //允许写保护break;case 3 :// didi();temp=(shi+1)/10*16+(shi+1)%10; //时if(shi==23)temp=0;write_1302 (0x8e,0x00); //禁止写保护write_1302 (0x84,temp);write_1302 (0x8e,0x80); //允许写保护break;}}}if(key3==0) //减键{delay(3);if(key3==0){while(!key3);switch(key1n){case 1 ://didi();temp=(miao-1)/10*16+(miao-1)%10; //秒if(miao==0)temp=89;write_1302 (0x8e,0x00); //禁止写保护write_1302 (0x80,0x80|temp);write_1302 (0x8e,0x80); //允许写保护break;case 2 ://didi();temp=(fen-1)/10*16+(fen-1)%10; //分if(fen==0)temp=89;write_1302 (0x8e,0x00); //禁止写保护write_1302 (0x82,temp);write_1302 (0x8e,0x80); //允许写保护break;case 3 ://didi();temp=(shi-1)/10*16+(shi-1)%10; //时if(shi==0)temp=35;write_1302 (0x8e,0x00); //禁止写保护write_1302 (0x84,temp);write_1302 (0x8e,0x80); //允许写保护break;}}}}//write_1302(0x80,miao|0x80);//miao++;/* if(key2==0){if(key2==0){while(!key2);write_1302(0x80,miao|0x00);//打开1302振荡器}}*/}void main(){init();//buzzer=0;//miao=20;//fen=10;//shi=23;while(1){miao = BCD_Decimal(read_1302(0x81));fen = BCD_Decimal(read_1302(0x83));shi = BCD_Decimal(read_1302(0x85));keyscan();if((miao==clock1[2])&&(fen==clock1[1])&&(shi==clock1[0])) {flag1=1;for(i=0;i<10;i++)didi();}if(j==100) for(i=0;i<10;i++) didi();if(j==200) {for(i=0;i<10;i++)didi();flag1=0;j=0;}}}void tiemr0() interrupt 1{if(flag1) j++;TH0=(65536-50000)/256;TL0=(65536-50000)%256;write_sfm(miao,fen,shi); }。

51单⽚机ds1302实时时钟程序#ifndef __DS1302_H_#define __DS1302_H_//---包含头⽂件---//#include#include//---重定义关键词---//#ifndefuchar#define uchar unsigned char#endif#ifndefuint#define uint unsigned int#endif//---定义ds1302使⽤的IO⼝---//sbit DSIO=P3^4;sbit RST=P3^5;sbit SCLK=P3^6;//---定义全局函数---//void Ds1302Write(ucharaddr, uchardat); uchar Ds1302Read(ucharaddr);void Ds1302Init();void Ds1302ReadTime();//---加⼊全局变量--//extern uchar TIME[7]; //加⼊全局变量#endif #include"ds1302.h"//---DS1302写⼊和读取时分秒的地址命令---////---秒分时⽇⽉周年最低位读写位;-------//uchar code READ_RTC_ADDR[7] = {0x81, 0x83, 0x85, 0x87, 0x89, 0x8b, 0x8d};uchar code WRITE_RTC_ADDR[7] = {0x80, 0x82, 0x84, 0x86, 0x88, 0x8a, 0x8c};//---DS1302时钟初始化2013年1⽉1⽇星期⼆12点00分00秒。

---////---存储顺序是秒分时⽇⽉周年,存储格式是⽤BCD码---//uchar TIME[7] = {0, 0, 0x12, 0x01, 0x01, 0x02, 0x13};/************************************************************************ * 函数名: Ds1302Write* 函数功能: 向DS1302命令（地址+数据）* 输⼊: addr,dat* 输出: ⽆************************************************************************* void Ds1302Write(ucharaddr, uchardat){uchar n;RST = 0;_nop_();SCLK = 0;//先将SCLK置低电平。

#ifndef __DS1302_H__#define __DS1302_H__#define uchar unsigned char#define uint unsigned int#includesbit SCLK = P3^2;sbit IO = P2^4;sbit RST = P3^3;#define R_Second 0x81#define W_Second 0x80#define R_Minute 0x83#define W_Minute 0x82#define R_Hour 0x85#define W_Hour 0x84h#define R_Day 0x87#define W_Day 0x86_n_#define R_Month 0x89澝儙#define W_Month 0x88 #define R_Week 0x8B#define W_Week 0x渢#define R_Year 0x8D#define W_Year 0x8C?^•#define R_Control 0xu _簭_•void DS1302_Write_Byte(uchar Date;?void Write_DS1302(uchar Adr,uchar Date;uchar Read_DS1302(uchar Adr;void Init_DS1302(;'#endifW燊/************************************************************** 函數名稱 _Z_k謃?缧?_恄漀騋单字节写葅发亽輸入參數：写的字节U輸出參數 -_无M;1,?備<5%注：**************************************************************/F _void DS1302_Write_Byte(uchar Date{琿彆 uchar i;G for(i = 0;i < 8;i++{ if(Date & 0x01IO = 1;else_鞺穢齄 IO = 0;O _ SCLK = 1;3┋SCLK = 0;}诰搕謃鋃乓莗れ擾葞U/************************************************************** ： uchar DS1302_Read_Byte(•函數功能：单字节读恳輸入參數蛈w{-无E轆儡：|3?o读出的数据備注：**************************************************************/ uchar DS1302_Read_Byte(!b{uchar i,Temp = 0;for(i = 0;i < 8;i++{ Temp = Temp >> 1;(_eTemp = Temp | 0x80;SCLK = 1;}return Temp;Y仞_Gv'€+枊瞒~0壇糪f?_6篢2擺Pz;函數功能：写数据輸入參數 &率郷骋確_F澼 G?_弒]u_q无蘤窓膠注巓钌鑪**************************************************************/v嗣趉{藁mSCLK = 0;RST = 1;DS1302_Write_Byte(Adr;濒 DS1302_Write_Byte(Date;i Mc}n/************************************************************** 殧泛曋ㄖ嬪i： uchar Read_DS1302(uchar Adr齙鳑扼蝊_╛嵖??>輸入參數檟_范:U?T啃禈輸出參數：读出的数据拥&__ 注：_**************************************************************/ uchar Read_DS1302(uchar Adr{uchar Temp = 0;RST = 0;4_RST = 1;DS1302_Write_Byte(Adr;Temp = DS1302_Read_Byte(;RST = 0;潵擾?_獐衉}悱qG_?帶燙ㄚ負焉/************************************************************** 函數名稱：_函數功能陕鮛€_kE_P_w?鋃DS1302o齙：无?輸出參數： U _?眶備注：@_2•蒧void Init_DS1302(癬窥Q_u瞪I _%~唼? _镈 Write_DS1302(W_Month,0x09;中_# 疴FWrite_DS1302(W_Minute,0x11;Write_DS1302(W_Second,0x23;Write_DS1302(W_Control,0x80;_Ts}<。

#include<reg52.h>#include<intrins.h>#define uchar unsigned char#define uint unsigned intuchar table0[]={0x30,0x31,0x32,0x33,0x34,0x35,0x36,0x37,0x38,0x39}; //液晶显示数字0——9代码sbit SCLK=P1^0;sbit DATA=P1^1;sbit CE=P1^2;sbit RS=P2^0;sbit RW=P2^1;sbit EN=P2^2;sbit FB=P0^7;sbit start=P1^4;sbit stop=P1^5;uchar i;/*******************延时n微秒函数*****************/void delaynus(uchar n) //n us延时函数{// uchar i;for(i=n;i>0;i--);}/*******************写数据函数*****************/void write1302(uchar add,uchar dat){CE=0;SCLK=0;CE=1;for(i=0;i<8;i++) //写入地址{DATA=add&0x01;SCLK=1;SCLK=0;add>>=1;}for(i=0;i<8;i++) //写入数据{DATA=dat&0x01;SCLK=1;SCLK=0;dat>>=1;}SCLK=1;CE=0;}/*******************读数据函数*****************/uchar read1302(uchar add){uchar dat;CE=0;SCLK=0;CE=1;for(i=8;i>0;i--) //写入地址{DATA=add&0x01;SCLK=1;SCLK=0;add>>=1;}for(i=8;i>0;i--) //读出数据/********************为神马？？？**************************/{dat>>=1;if(DATA==1)dat=dat|0x80;SCLK=1;SCLK=0;}SCLK=1;CE=0;return dat;}/*******************DS1302初始化函数*****************/void init1302(){uchar flag;flag=read1302(0x81);if(flag&0x80){write1302(0x8e,0x00);write1302(0x80,0x00);write1302(0x82,(((1/10)<<4)|(1%10)));write1302(0x84,(((20/10)<<4)|(20%10)));write1302(0x86,(((19/10)<<4)|(19%10)));write1302(0x88,(((7/10)<<4)|(7%10)));write1302(0x8a,((2/10)<<4)|(2%10));write1302(0x8c,(((11/10)<<4)|(11%10)));write1302(0x90,0xa5); //充电。

//DS1302时钟芯片程序#include <reg52.h>#define uchar unsigned char#define uint unsigned intsbit CLK=P2^3; //定义口sbit IO=P2^4;sbit RST=P2^5;sbit ACC7=ACC^7;sbit ACC0=ACC^0;uchar a[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}, //定义数码管显示码b[8]={0x00,0x00,0x12,0x23,0x11,0x07,0x08,0xbe},//写入时钟数据,最后be突发访问c[7],s,s1,ml1,mh1,ml2,mh2,ml3,mh3; //c存放读.出时钟数据void delay(uint z) // 延时{uint i;uchar j;for(i=z;i>0;i--)for(j=200;j>0;j++);}// 显示子程序void display(uchar mh1,uchar ml1,uchar mh2,uchar ml2,uchar mh3,uchar ml3){uchar x,k,r;for(k=0;k<80;k++){for(r=0;r<8;r++){x=P2&0XF8;P2=x+r ;if(r==2||r==5){ P0=0XBF;delay(3);}//------秒-------if(r==0){P0=a[ml1] ;delay(3) ;}if(r==1){P0=a[mh1] ;delay(3) ;}//------fen---------if(r==3){P0=a[ml2] ;delay(3) ;}if(r==4){P0=a[mh2] ;delay(3) ;}//-----shi---------if(r==6){P0=a[ml3] ;delay(3) ;}if(r==7){P0=a[mh3] ;delay(3) ;}delay(3);}}}//********DS1302读写程序************void w(uchar u) //写入1位字节{uchar i;ACC = u;for(i=8; i>0; i--){IO = ACC0;CLK = 1;CLK = 0;ACC = ACC >> 1;}}uchar r(void) //读出1位字节{uchar i;for(i=8; i>0; i--){ACC = ACC >>1;ACC7 = IO;CLK = 1;CLK = 0;}return(ACC);}void W1302(uchar ucAddr, uchar ucDa){RST = 0;CLK = 0;RST = 1;w(ucAddr); // 地址，命令w(ucDa); //写1Byte数据CLK = 1;RST = 0;}void wclock(uchar *p) //写入时钟多字节数据{uchar i;// W1302(0x80,0x00); //停止时钟W1302(0x8e,0x00); // 允许写RST=0;CLK=0;RST=1;w(0xbe); //写多字节命令for(i=8;i>0;i--){w(*p); //按数组指针逐个写入,写入数据在主函数调用时指向b数组p++;}W1302(0x00,0x50); //启动定时器CLK=1;RST=0;}void rclock(uchar *p) //读出时钟多字节数据{uchar i;RST=0;CLK=0;RST=1;w(0xbf);for(i=7;i>0;i--){*p=r();p++;}CLK=1;RST=0;}void main(void){uchar mh,ml,fh,fl,sh,sl,z,v,q,e,y,t,k;wclock(b);while(1){rclock(c);mh=(c[0]&0xf0)>>4;ml=c[0]&0x0f;fh=(c[1]&0xf0)>>4;fl=c[1]&0x0f;sh=(c[2]&0xf0)>>4;sl=c[2]&0x0f;display(mh,ml,fh,fl,sh,sl);if(mh==3&&ml==0){ for(k=0;k<3;k++){z=(c[3]&0xf0)>>4;v=c[3]&0x0f;q=(c[4]&0xf0)>>4;e=c[4]&0x0f;y=(c[6]&0xf0)>>4;t=c[6]&0x0f;display(z,v,q,e,y,t);}}}}。

==================主程序================= #include <reg51.h>。

#include "ds1302.h"#include "LCD1602.h"void change();uchar times[9];uchar date[9];main(){LCD_init();//LCD初始化init_1302(time_1302);gotoxy(1,1);LCD_display("Time:");gotoxy(1,2);LCD_display("Date:");times[8]='\0';//date[8]='\0';while(1){get_1302(time_1302);change();gotoxy(7,1);LCD_display(times);gotoxy(7,2);LCD_display(date);}}/*=========================== 转换子程序===========================*/void change(){// 时间的转换times[0]=time_1302[2]/10+'0';times[1]=time_1302[2]%10+'0';times[2]=':';times[3]=time_1302[1]/10+'0';times[4]=time_1302[1]%10+'0';times[5]=':';times[6]=time_1302[0]/10+'0';times[7]=time_1302[0]%10+'0';// 日期的转换date[0]=time_1302[6]/10+'0';date[1]=time_1302[6]%10+'0';date[2]='-';date[3]=time_1302[4]/10+'0';date[4]=time_1302[4]%10+'0';date[5]='-';date[6]=time_1302[3]/10+'0';date[7]=time_1302[3]%10+'0';}======================================================DS1302驱动程序=============#define uchar unsigned charuchar time_1302[7]={0x00,0x00,0x00,0x03,0x07,0x03,0x08};//设置时间初始值数组// 秒分时号月份星期年sbit T_IO=P1^0; //与硬件相关的连线clk为DS1302的时钟信号线sbit T_CLK=P1^1; //DAT为DS1302的I/O数据线sbit T_RST=P1^2; //RST为DS1302的RST信号线uchar bdata datbyte;sbit datbyte0=datbyte^0;sbit datbyte7=datbyte^7;void get_1302(uchar time[]);void write_ds1302(uchar dat);uchar r_1302(uchar add);void w_1302(uchar add,uchar dat);uchar read_ds1302(void);void init_1302(uchar *time);/*==========================================D S 1 3 0 2 初始化===========================================*/void init_1302(uchar *time){uchar i, add;//uchar time_bcd[7];add=0x80;//0写入，1读出w_1302(0x8e,0x00);for(i=0;i<7;i++){w_1302(add,*time);add+=2;time++;}w_1302(0x8e,0x80);}//===========================// 读取当前时间//===========================void get_1302(uchar time[]){uchar i;uchar add=0x81;w_1302(0x8e,0x00);for(i=0;i<7;i++){time[i]=r_1302(add);add+=2;}w_1302(0x8e,0x80);}/*================================= DS1302写入一个字节（上升沿有效）=================================*/void write_ds1302(uchar dat){uchar i;datbyte=dat;for(i=0;i<8;i++){T_IO=datbyte0;T_CLK=1;T_CLK=0;datbyte=datbyte>>1;}}/*======================================= DS1302读取一个字节（下降沿有效）=======================================*/uchar read_ds1302(void){uchar i;for(i=0;i<8;i++){datbyte=datbyte>>1;datbyte7=T_IO;T_CLK=1;T_CLK=0;}return(datbyte);}/*========================================= 指定位置读取数据=========================================*/uchar r_1302(uchar add){uchar temp,dat1,dat2;T_RST=0;T_CLK=0;T_RST=1;write_ds1302(add);temp=read_ds1302();T_CLK=1;T_RST=0;dat1=temp/16;dat2=temp%16;temp=dat1*10+dat2;return(temp);}/*========================================== 指定位置写入数据==========================================*/void w_1302(uchar add,uchar dat){T_RST=0;T_CLK=0;T_RST=1;write_ds1302(add);write_ds1302(dat/10<<4|dat%10);T_CLK=1;T_RST=0;}=========================================== =============LCD1602驱动程序================#define LCD_DB P0//定义LCD的数据端口sbit LCD_RS=P2^0;sbit LCD_RW=P2^1;sbit LCD_E=P2^2;#define uchar unsigned char#define uint unsigned int//===========延时子函数======================== void delay_lcd(uint x){uint i,j;for(i=x;i>0;i--)for(j=0;j<2;j++);}//==================写指令函数================= void LCD_write_command(uchar command){LCD_DB=command;LCD_RS=0;//指令LCD_RW=0;//写入LCD_E=1;LCD_E=0;delay_lcd(1);//等待执行完毕。

51单片机+带字库液晶12864+DS1302数字时钟C 源程序（无按键修改功 能）过两天的搜索与调试，在别人程序的基础上，不断修改，终于调试成功了 这个程序。

目前还不能修改时间与日期，只是以预定时间以始。

适用于开发板：51单片机（AT89S52 +带字库液晶12864（ST7920）+DS1302实时时钟）实现功能：简单，数字时钟 +日期（以后会不断完美）。

C 语言源程序如下：#include <reg52.h>#include <intrins.h> #define uchar unsigned char #define uint unsigned int /*DS1302 端 口设置 */sbit SCK=P3A 6;sbit SDA=P3A4;sbit RST = P3A5;bitReadRTC_Flag;/* 12864 端口定义 */ #define LCD_data P0 sbit LCD_RS = P2A4;sbit LCD_RW = P2A5; sbit LCD_EN = P2A 6;//液晶使能控制sbit PSB 二卩2八1； //并口控制 //DS1302 时钟 //DS1302 IO // DS1302 复位 //读DS1302全局变量//带字库液晶 12864数据口// 寄存器选择输入// 液晶读/写控制sbit RES=P2A3;uchar code dis1[] = {"电子设计天地"}；// 液晶显示的汉字uchar code dis2[] = {"有志者，事竟成!"}；uchar code dis4[] = {'0','1','2','3','4','5','6','7','8','9'}；unsigned char temp；#define delayNOP()； {_nop_()；_nop_()；_nop_()；_nop_()；}；void lcd_pos(uchar X,uchar Y)； //确定显示位置unsigned char l_tmpdate[7]={0,7,16,19,10,1,9};〃秒分时日月周年09-10-19 16:07:00code unsigned charwrite_rtc_address[7]={0x80,0x82,0x84,0x86,0x88,0x8a,0x8c}; //秒分时日月周年最低位读写位code unsigned charread_rtc_address[7]={0x81,0x83,0x85,0x87,0x89,0x8b,0x8d};void Write_Ds1302_byte(unsigned char temp);void Write_Ds1302( unsigned char address,unsigned char dat );unsigned char Read_Ds1302 ( unsigned char address );void Read_RTC(void);//read RTCvoid Set_RTC(void); //set RTCvoid InitTIMER0(void);//inital timer0/*******************************************************************//**//* 延时函数 *//* *//******************************************************************* /void delay(unsigned int m) // 延时程序 {unsigned int i,j;for(i=0;i<m;i++)**************************************************//*检查LCD 忙状态*//*lcd_busy 为1时，忙，等待。

DS1302时钟芯片C51驱动程序/**********************************************程序名称:DS1302时钟芯片C51驱动程序简要说明:read_clockS函数为读取时钟数据调用Set_time即可调整时间并写入DS1302sel为调整标志，可通过外部按键来更改其值来源:整理杜洋程序文档所得**********************************************///定义头文件#include/************************************************************** ****///定义DS1302时钟接口sbit clock_clk = P1 ^ 0; //ds1302_clk（时钟线）sbit clock_dat = P1 ^ 1; //ds1302_dat（数据线）sbit clock_Rst = P1 ^ 2; //ds1302_Rst（复位线）/************************************************************** ****///定义累加器A中的各位sbit a0 = ACC ^ 0;sbit a1 = ACC ^ 1;sbit a2 = ACC ^ 2;sbit a3 = ACC ^ 3;sbit a4 = ACC ^ 4;sbit a5 = ACC ^ 5;sbit a6 = ACC ^ 6;sbit a7 = ACC ^ 7;/************************************************************** ****///定义全局变量unsigned char yy,mo,dd,xq,hh,mm,ss; //定义时间映射全局变量/************************************************************** ****///声明unsigned char clock_in(void);void clock_out(unsigned char dd);void Init_1302(void);unsigned char read_clock(unsigned char ord);void read_clockS(void);void Set_time(unsigned char sel);void write_clock(unsigned char ord, unsigned char dd);/************************************************************** ****///常用时钟数据读取void read_clockS(void){ss = read_clock(0x81); //读取秒数据mm = read_clock(0x83); //读取分钟数据hh = read_clock(0x85); //小时dd = read_clock(0x87); //日mo = read_clock(0x89); //月xq = read_clock(0x8b); //星期yy = read_clock(0x8d); //年}/************************************************************** ****///调时用加1或减1程序void Set_time(unsigned char sel){//根据选择调整的相应项目加1或减1并写入DS1302,sel为调整项标志，通过外部程序来影响它signed char address,item;signed char max,mini;if(sel==6) {address=0x80; max=0;mini=0;} //秒7if(sel==5) {address=0x82; max=59;mini=0;} //分钟6if(sel==4) {address=0x84; max=23;mini=0;} //小时5if(sel==3) {address=0x8a; max=7;mini=1;} //星期4if(sel==2) {address=0x86; max=31;mini=1;} //日3if(sel==1) {address=0x88; max=12;mini=1;} //月2if(sel==0) {address=0x8c; max=99; mini=0;} //年1//读取1302某地址上的数值转换成10进制赋给itemitem=((read_clock(address+1))/16)*10 + (read_clock(address+1))%16;if(ADD_KEY == 0){item++;} //增加键（ADD_KEY）按下，数加1if(DEC_KEY == 0){item--;} //减少键（DEC_KEY）按下，数减 1 if(item>max) item=mini; //查看数值有效范围if(itemwrite_clock(0x8e,0x00); //允许写操作write_clock(address,(item/10)*16+item%10);//转换成16进制写入1302write_clock(0x8e,0x80); //写保护，禁止写操作}/************************************************************** ****///设置1302的初始时间void Init_1302(void)//（2009年1月1日00时00分00秒星期一）{write_clock(0x8e,0x00); //允许写操作write_clock(0x8c,0x09); //年write_clock(0x8a,0x01); //星期write_clock(0x88,0x01); //月write_clock(0x86,0x01); //日write_clock(0x84,0x00); //小时write_clock(0x82,0x00); //分钟write_clock(0x80,0x00); //秒write_clock(0x90,0xa5); //充电write_clock(0x8e,0x80); //禁止写操作}/************************************************************** ****///DS1302写数据（底层协议）void write_clock(unsigned char ord, unsigned char dd){clock_clk=0;clock_Rst=0;clock_Rst=1;clock_out(ord);clock_out(dd);clock_Rst=0;clock_clk=1;}/************************************************************** ****///1302驱动程序（底层协议）void clock_out(unsigned char dd){ACC=dd;clock_dat=a0; clock_clk=1; clock_clk=0;clock_dat=a1; clock_clk=1; clock_clk=0;clock_dat=a2; clock_clk=1; clock_clk=0;clock_dat=a3; clock_clk=1; clock_clk=0;clock_dat=a4; clock_clk=1; clock_clk=0;clock_dat=a5; clock_clk=1; clock_clk=0;clock_dat=a6; clock_clk=1; clock_clk=0;clock_dat=a7; clock_clk=1; clock_clk=0;}/************************************************************** ****///DS1302写入字节（底层协议）unsigned char clock_in(void){clock_dat=1;a0=clock_dat;clock_clk=1; clock_clk=0; a1=clock_dat;clock_clk=1; clock_clk=0; a2=clock_dat;clock_clk=1; clock_clk=0; a3=clock_dat;clock_clk=1; clock_clk=0; a4=clock_dat;clock_clk=1; clock_clk=0; a5=clock_dat;clock_clk=1; clock_clk=0; a6=clock_dat;clock_clk=1; clock_clk=0; a7=clock_dat;return(ACC);}/************************************************************** ****///DS1302读数据（底层协议）unsigned char read_clock(unsigned char ord){unsigned char dd=0;clock_clk=0;clock_Rst=0;clock_Rst=1;clock_out(ord);dd=clock_in();clock_Rst=0;clock_clk=1;return(dd);}/************************************************************** ****/。

/*============================================================使用1602液晶显示DS1302+c51时钟[注:AT89C51使用12M晶振]=============================================================*/#include <AT89x51.h>#include <string.h>#define LCM_RW P2_1 //定义引脚#define LCM_RS P2_0#define LCM_E P2_2#define LCM_Data P0#define Busy 0x80 //用于检测LCM状态字中的Busy标识#define uchar unsigned charsbit T_CLK=P2^3;sbit T_IO =P2^4;sbit T_RST=P2^5;sbit ACC0=ACC^0;sbit ACC7=ACC^7;sbit LED=P2^0; //背光灯输出(因本实验板无此功能所以此项功能无效)sbit system=P1^1; //模式sbit TimerUp=P1^2; //时间加sbit TimerDown=P1^0; //时间减sbit Speaker=P3^7; //蜂鸣器void Set(uchar,uchar); //根据选择调整相应项目void RTInputByte(uchar); //输入1Byte */uchar RTOutputByte(void); //输出1Byte */void W1302(uchar, uchar); //向DS1302写入一个字节uchar R1302(uchar); //从DS1302读出一个字节void Set1302(uchar * ); //设置时间void KeySound(); //按键音void ClockSound(); //闹铃蜂鸣声uchar id,msec,model,LedTime,d;bit a,b; //闪烁标志位uchar inittime[7]={0x00,0x10,0x19,0x29,0x03,0x04,0x06}; //初始化后设置为：06年3月29日星期3 19点10分0秒void Out_LCM(void); //显示屏幕void model0(void); //显示输出void model1(void);void model2(void);void model3(void);void model4(void);void model5(void);void model6(void);void id_case1_key(); //项目调整void Modset(); //模式键处理void WriteDataLCM(uchar WDLCM);void WriteCommandLCM(uchar WCLCM,BuysC);uchar ReadStatusLCM(void);void LCMInit(void);void OutputInformation(uchar X, uchar Y, uchar DData);void DisplayListChar(uchar X, uchar Y, uchar code *DData);void Delay5Ms(void);void Delay400Ms(void);void systemsetup(void); //进入系统设置uchar code systemp[]={"System.setup"}; //字符串输出(系统设定) uchar code TIMER[]={"Time"}; //字符串输出(时间) uchar code DATE[]={"Date"}; //字符串输出(日期) uchar code alarmclock[]={"Clock"}; //字符串输出（闹铃）uchar code lamp[]={"Lamp"}; //字符串输出（背光灯）uchar code reset[]={"Reset"}; //字符串输出（时间归零）uchar code exit[]={"Exit"}; //字符串输出（退出）uchar code set[]={"Set"}; //字符串输出（设置）uchar code sec[]={"sec"}; //字符串输出（秒）uchar code ClockSet[]={"ClockSet"}; //字符串输出（闹铃设置）uchar code ClockOn[]={"ON"}; //字符串输出（ON）uchar code ClockOff[]={"OFF"}; //字符串输出（OFF）void timesetup(void); //时间设置void datesetup(void); //日期设置void alarmclockset(void); //闹铃设置void lampsetup(void); //背光灯设置void timereset(void); //时间清零void main(void){Speaker=1; //关闭蜂鸣器LED=0; //打开LED ,低电平有效，外接9012驱动Delay400Ms(); //启动等待，等LCM讲入工作状态LCMInit(); //LCM初始化TMOD=0x01; //16位定时TH0=0x3c; //50msTL0=0xb0;EA=1;TR0=1;ET0=1;while(1){if(TimerDown==0) //左移键按下后把背光灯打开{Delay5Ms();if(TimerDown==0){KeySound(); //蜂鸣声LED=0; //打开背光灯LedTime=R1302(0xc1)/16*10+R1302(0xc1)%16;} //取出背光灯时间并转换为十进制数}b=1; //模式键是否动作标志。

//DS1302时钟程序#include <stc89c52.h>#include <intrins.h>#define uchar unsigned char#define uint unsigned int/******************************************************************** ///少占鱼制作河北正定欢迎您长沙航空职业技术学院//2010 年QQ:411656434//版权所有:#define LCD1602_RS P2_5 //定义引脚#define LCD1602_RW P2_6#define LCD1602_E P2_7#define LCD1602_IO P0#define Busy 0x80 //用于检测LCD1602状态字中的Busy标识const uchar num[]=" 3456789+";uchar code a[] = {" E N v"};void WriteData(uchar DAT);void WriteCommand(uchar command,BuysC);uchar ReadData(void);void Readbusy(void);void LCD1602_Init(void);void DisplayOneChar(uchar X, uchar Y, uchar DData);void Displaystring(uchar X, uchar Y, uchar *DData);void Delay5Ms(void);void Delay400Ms(void);void delayms(uint);void delays(uint m) ;void delayus(uchar x) ;sbit DS1302_CLK =P2^0;// P1^0;sbit DS1302_IO =P2^1;// P1^1;sbit DS1302_RST =P2^2;// P1^2;uchar shuju;unsigned char time[]={0x11,0x03,0x28,0x01,0x12,0x39,0x00};// 初始化时间年月日星期时分秒uchar Display_Buffer[12]={"12:25:00"};//时、分、秒的格式uchar riqi[12]={"11-03-28"};//年、月、日的格式uchar xingqi[5]="week";//星期unsigned char second,minute,hour,week,day,month,year;/******************1602函数********************************//******************************************************************** /void delays(uint m){uint i,j;for(i=0;i<m;i++){for(j=0;j<1000;j++){;}}}void Delay(void){unsigned char i;unsigned int j;for(i=0;i<200;i++)for(j=300;j>0;j--);}/******************************************************************** *********函数功能:向DS1302送一字节数据子程序入口参数:出口参数:********************************************************************* ********/void InputByte(unsigned char BYTE){char i;for(i=8;i>0;i--){ //前面在read_ds1302()函数里已经把CLK清0了DS1302_CLK=0;//这里再清0一次，看着清楚。