DS12C887电子时钟(附程序)

DS12C887电子时钟(附程序) 下面附有实物图和引脚接法图及程序时钟实物图 LCD1602引脚连接 P1.0 P1.1 P1.2 P0.0~P0.7 DS12C887引脚连接(打叉的表示不接) 蜂鸣器引脚连接按键引脚连接 P1.3 P3.4 P3.5 P3.6 P3.7 源程序 #in...

下面附有实物图和引脚接法图及程序时钟实物图 LCD1602引脚连接 P1.0 P1.1 P1.2 P0.0~P0.7 DS12C887引脚连接(打叉的表示不接) 蜂鸣器引脚连接按键引脚连接 P1.3 P3.4 P3.5 P3.6 P3.7 源程序 #include #include #define uint unsigned int #define uchar unsigned char sbit lcdrs=P1^0; sbit rw=P1^1; sbit lcden=P1^2; sbit s1=P3^4; //功能键 sbit s2=P3^5; //增大键 sbit s3=P3^6; //减小键 sbit s4=P3^7; //闹铃查看键 sbit beep=P1^3;//蜂鸣器 sbit dscs=P1^7; sbit dsas=P1^6; sbit dsrw=P1^5; sbit dsds=P1^4; sbit dsirq=P3^3; //中断 bit flag1,flag_ri;//定义标志位 flag1设置闹铃 uchar count,s1num,flag,t0_num; char miao,shi,fen,year,month,day,week,amiao,afen,ashi; char code table[]=" 20 - - "; // 20 - - uchar code table1[]=" : : "; // : : void write_ds(uchar,uchar); uchar read_ds(uchar);void set_time(); void read_alarm();void set_alarm(uchar,uchar,uchar); void delayms(uint z) //延时毫秒的程序 { uint x,y; for(x=z;x>0;x--) for(y=112;y>0;y--); } void di() { beep=0; delayms(100); beep=1; } void write_cmd(uchar cmd) { lcden=0; lcdrs=0; P0=cmd; _nop_(); lcden=1; delayms(1); lcden=0; _nop_(); } void write_dat(uchar dat) { lcden=0; lcdrs=1; P0=dat; _nop_(); lcden=1; delayms(1); lcden=0; _nop_(); } void lcdint() { lcden=0; write_cmd(0x38); // 显示模式设置 write_cmd(0x0c); //开显示，不显示光标，不闪烁 write_cmd(0x06); //写一个字符后地址加1，屏幕不移 write_cmd(0x01); //清屏 delayms(1); } void init() { uchar num; rw=0; EA=1;//开总中断 EX1=1;//开外部中断1 IT1=1;//外部中断下降沿触发 flag1=0; t0_num=0;s1num=0;week=1; /* write_ds(0x0A,0x20);//打开振荡器 write_ds(0x0B,0x26);//设置24小时模式，数据二进制格式，开启闹铃中断 set_time();//设置上电默认时间,调试的时候用 */ lcdint(); write_cmd(0x80); for(num=0;num<15;num++) { write_dat(table[num]); } write_cmd(0xc0); for(num=0;num<11;num++) { write_dat(table1[num]); } } void write_sfm(uchar add,char date) //写时间,2位一起写 { char shi,ge; shi=date/10;ge=date%10; write_cmd(0xc0+add); write_dat(0x30+shi); write_dat(0x30+ge); } void write_nyr(uchar add,char date)//年月日 { char shi,ge; shi=date/10;ge=date%10; write_cmd(0x80+add); write_dat(0x30+shi); write_dat(0x30+ge); } void write_week(char we)//星期 { write_cmd(0x80+12); switch(we) { case 1: write_dat('M');write_dat('O');write_dat('N');break; case 2: write_dat('T');write_dat('U');write_dat('E');break; case 3: write_dat('W');write_dat('E');write_dat('D');break; case 4: write_dat('T');write_dat('H');write_dat('U');break; case 5: write_dat('F');write_dat('R');write_dat('I');break; case 6: write_dat('S');write_dat('A');write_dat('T');break; case 7: write_dat('S');write_dat('U');write_dat('N');break; } } void keyscan() { if(flag_ri==1) { if((s1==0)||(s2==0)||(s3==0)||(s4==0))//按任意键取消闹钟报警 { delayms(5); if((s1==0)||(s2==0)||(s3==0)||(s4==0)) { while(!(s1&&s2&&s3&&s4));di(); flag_ri=0; } } } if(s1==0) //如果功能按键1按下 { delayms(5); //去抖动 if(s1==0) { while(!s1); //等待松手 s1num++; //记下次数 di(); //蜂鸣器响 if(flag1==1) //设置闹铃为1时才对s1num调整，只调秒，分，时 { if(s1num>3) { s1num=1; } } flag=1; //在调整时间时标志位flag为1，不进行正常操作 switch(s1num) { case 1:write_cmd(0xc0+10); write_cmd(0x0f); break; //按一下秒钟指针显示闪烁 case 2:write_cmd(0xc0+7); break; case 3:write_cmd(0xc0+4); break; case 4:write_cmd(0x80+12); break; case 5:write_cmd(0x80+9); break; case 6:write_cmd(0x80+6); break; case 7:write_cmd(0x80+3); break; default: //用default可以解决s1num跑飞 s1num=0; write_cmd(0x0c); //按了8次关闪烁，flag=0,退出调整，显示时间 flag=0; write_ds(0,miao); //将调整后的时间写入ds12c887 write_ds(2,fen); write_ds(4,shi); write_ds(6,week); write_ds(7,day); write_ds(8,month); write_ds(9,year); break; } } } if(s1num!=0) //S1有按下过，检测S2，S3 { if(s2==0) //如果按键2按下执行加 { delayms(5); if(s2==0) { while(!s2);di(); switch(s1num) { case 1: miao++; if(miao>59) { miao=0; } write_sfm(10,miao); write_cmd(0x80+0x40+10); break; case 2: fen++; if(fen>59) { fen=0; } write_sfm(7,fen); write_cmd(0x80+0x40+7); break; case 3: shi++; if(shi>23) { shi=0; } write_sfm(4,shi); write_cmd(0x80+0x40+4); break; case 4: week++; if(week>7) { week=1; } write_week(week); write_cmd(0x80+12); break; case 5: day++; if(day>31) { day=1; } write_nyr(9,day); write_cmd(0x80+9); break; case 6: month++; if(month>12) { month=1; } write_nyr(6,month); write_cmd(0x80+6); break; case 7: year++; if(year>99) { year=0; } write_nyr(3,year); write_cmd(0x80+3); break; } } } if(s3==0) { delayms(5); if(s3==0) { while(!s3);di(); switch(s1num) { case 1: miao--; if(miao<0) { miao=59; } write_sfm(10,miao); write_cmd(0x80+0x40+10); break; case 2: fen--; if(fen<0) { fen=59; } write_sfm(7,fen); write_cmd(0x80+0x40+7); break; case 3: shi--; if(shi<0) { shi=23; } write_sfm(4,shi); write_cmd(0x80+0x40+4); break; case 4: week--; if(week<1) { week=7; } write_week(week); write_cmd(0x80+12); break; case 5: day--; if(day<1) { day=31; } write_nyr(9,day); write_cmd(0x80+9); break; case 6: month--; if(month<1) { month=12; } write_nyr(6,month); write_cmd(0x80+6); break; case 7: year--; if(year<0) { year=99; } write_nyr(3,year); write_cmd(0x80+3); break; } } } } if(s4==0) { delayms(5); if(s4==0) { while(!s4);di(); flag1=~flag1; //闹铃调好后再按一次键返回 if(flag1==0) //退出闹钟设置保存数值 { flag=0; //启动时间显示 write_cmd(0x80+0x40); write_dat(' '); write_dat(' '); write_cmd(0x0c); //清屏下，否则光标乱跳（闹铃调时间时） write_ds(1,miao); write_ds(3,fen); write_ds(5,shi); } else //设置闹钟 { read_alarm(); //读原始数据 miao=amiao; fen=afen; shi=ashi; write_cmd(0xc0); write_dat('R');write_dat('i'); write_cmd(0x80+0x40); write_sfm(4,ashi); write_sfm(7,afen); write_sfm(10,amiao); } } } } void write_ds(uchar add,uchar date)//写12c887函数 { dscs=0; dsas=1; dsds=1; dsrw=1; P0=add; //写地址 dsas=0; dsrw=0; P0=date; //写数据 dsrw=1; dsas=1; dscs=1; } uchar read_ds(uchar add) //读12c887 { uchar ds_date; dsas=1; dsds=1; dsrw=1; dscs=0; P0=add; dsas=0; dsds=0; P0=0xff; ds_date=P0; dsds=1; dsas=1; dscs=1; return ds_date; } /*void set_time() //初始化 { write_ds(0,0); //秒 write_ds(1,10); //秒闹铃 write_ds(2,34); //分钟 write_ds(3,34); //分钟闹铃 write_ds(4,15); //小时 write_ds(5,15); //小时闹铃 write_ds(6,5); //星期 write_ds(7,20); //日 write_ds(8,5); //月 write_ds(9,11); //年 }*/ void read_alarm() { amiao=read_ds(1); afen=read_ds(3); ashi=read_ds(5); } void main() { init(); while(1) { keyscan(); //键盘不断扫描 if(flag_ri==1) //如果闹铃时间到 { di(); delayms(100); di(); delayms(500); } if(flag==0&&flag1==0) { keyscan(); year=read_ds(9); month=read_ds(8); day=read_ds(7); week=read_ds(6); shi=read_ds(4); fen=read_ds(2); miao=read_ds(0); write_sfm(10,miao); write_sfm(7,fen); write_sfm(4,shi); write_week(week); write_nyr(3,year); write_nyr(6,month); write_nyr(9,day); } } } void exter()interrupt 2 //闹铃外部中断1 { uchar c; //闹铃时间到 flag_ri=1; c=read_ds(0x0c); //读C寄存器表示响应中断 }

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DS12C887电子时钟(附程序)

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