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#include
#include #define uchar unsigned char #define uint unsigned int ***it rs=P1^0;//寄存器选择 ***it rw=P1^1;//读写信号线 ***it lcden=P1^2;//led使能端 ***it scl=P1^3;//时钟线 ***it rst=P1^5;//复位线 ***it io=P1^4;//数据口 ***it key_set_time=P3^4;//设置时间键 ***it key_add=P3^5;//加键 ***it key_minus=P3^6;//减键 ***it key_set_alarm=P3^7;//设置闹钟键 ***it bee=P1^6;//蜂鸣器接口 ***it dq=P1^7;//ds18b20测温 uchar getTimebuf[7];//存放时间数据 uchar time[]={"11:00:00"};//时间格式字符串 uchar date[]={"2014-12-17"};//日期格式字符串 uchar weeklist[]={"SunMonTueWedThuFriSat"};//星期字符列表 uchar week[]={"Wed"};//星期格式字符串 int count;//设定秒分时日月星期年的时候count的值分别为1235647 int alarm;//是否进入闹钟设置界面 123分别代表开关 分 小时的设置 int isOpen;//闹钟是否开启 默认不开启 int fen,shi;//闹钟的分钟小时 int isRing;//闹钟是否在响 uchar isInit_1302;//是否初始化时钟完毕 int num; int temperature;//温度 int temp_flag;//温度正负标志 void delay(uint x){ int y; while(x--){ for(y=100;y>0;y--); } } void write_1602com(uchar com){ //1602写指令 rs=0; lcden=0; P2=com; delay(5); lcden=1; delay(5); lcden=0; } void write_1602data(uchar dat){ //1602写数据 rs=1; lcden=0; P2=dat; delay(5); lcden=1; delay(5); lcden=0; } void init_1602(){ //初始化1602液晶 rw=0; lcden=0; write_1602com(0x38);//设置显示模式 write_1602com(0x0c);//显示开关及光标是否显示和闪动 write_1602com(0x06);//光标移动方向 write_1602com(0x01);//清屏 } void write_ds1302_byte(uchar temp){ //ds1302写一个字节数据 uchar i; for(i=0;i<8;i++){ io=temp&0x01;//将数据放到IO口上 scl=0;//scl为低时准备数据 scl=1;//上升沿写入 temp>>=1; } } void write_ds1302(uchar add,uchar dat){ //向地址add写入数据dat rst=0; scl=0; rst=1; write_ds1302_byte(add); write_ds1302_byte(dat); scl=1; rst=0; } uchar read_ds1302(uchar add){ //ds1302读数据 uchar i,dat; rst=0; scl=0; rst=1; write_ds1302_byte(add);//首先写入要读的数据处的地址 for(i=0;i<8;i++){ if(io==1){ dat|=0x80; } scl=1; scl=0;//下降沿读取数据 dat>>=1; } scl=1; rst=0; return dat; } void read_time(uchar curr_time[]){ uchar i; uchar ucAddr = 0x81; for (i=0;i<7;i++){ curr_time[i] = read_ds1302(ucAddr);//格式为: 秒 分 时 日 月 星期 年 ucAddr += 2; } } void set_time(uchar *pSecDa){ //设定时间 uchar i; uchar ucAddr = 0x80; write_ds1302(0x8e,0x00); for(i =7;i>0;i--){ write_ds1302(ucAddr,*pSecDa); //秒 分 时 日 月 星期 年 pSecDa++; ucAddr+=2; } write_ds1302(0x8e,0x80); } void init_ds1302(){ //ds1302初始化 isInit_1302=read_ds1302(0x81);//读出时钟状态 if(isInit_1302&0x80){//说明没有初始化 write_ds1302(0x8e,0x00);//关闭写保护 以后一直开着 write_ds1302(0x90,0xa5); //辅助电源充电命令 一个二极管 一个2K电阻 write_ds1302(0x80,0x00);//秒 CH置0 开启时钟 write_ds1302(0x82,0x59);//分 write_ds1302(0x84,0x10);//时 write_ds1302(0x86,0x07);//日 write_ds1302(0x88,0x05);//月 write_ds1302(0x8a,0x04);//星期 write_ds1302(0x8c,0x14);//年 write_ds1302(0x8e,0x80); } } char int_to_char(int temp){ //把0到9对应的数字转为字符 char x='0'; switch(temp){ case 0:x='0';break; case 1:x='1';break; case 2:x='2';break; case 3:x='3';break; case 4:x='4';break; case 5:x='5';break; case 6:x='6';break; case 7:x='7';break; case 8:x='8';break; case 9:x='9';break; } return x; } int ds18b20_read_temp(); void display(){ uchar bai,shi,ge,point,fuhao; read_time(getTimebuf);//时时读取时间 time[6]=(getTimebuf[0])/16+48;//格式化时间秒 time[7]=(getTimebuf[0])%16+48; time[3]=(getTimebuf[1])/16+48;//格式化时间分 time[4]=(getTimebuf[1])%16+48; time[0]=(getTimebuf[2])/16+48;//格式化时间小时 time[1]=(getTimebuf[2])%16+48; date[8]=getTimebuf[3]/16+48;//格式化日期日 date[9]=getTimebuf[3]%16+48; date[5]=getTimebuf[4]/16+48;//格式化日期月 date[6]=getTimebuf[4]%16+48; date[2]=getTimebuf[6]/16+48;//格式化日期年 date[3]=getTimebuf[6]%16+48; week[0]=weeklist[(getTimebuf[5]%7)*3];//格式化星期 week[1]=weeklist[(getTimebuf[5]%7)*3+1]; week[2]=weeklist[(getTimebuf[5]%7)*3+2]; write_1602com(0x80+1); for(num=0;num<10;num++){ write_1602data(date[num]); } write_1602data(' '); for(num=0;num<3;num++){ write_1602data(week[num]); } write_1602com(0x80+0x40); for(num=0;num<8;num++){ write_1602data(time[num]); } //显示温度值 write_1602com(0x80+0x40+8);//设置数据指针 temperature=ds18b20_read_temp(); bai=temperature/1000+0x30; shi=temperature%1000/100+0x30; ge=temperature%100/10+0x30; point=temperature%100%10+0x30; if(temp_flag==1){//说明为正数 不显示符号位 125.6 25.7两种 fuhao=0x20;//显示空白 if(bai==0x30){ bai=0x20;//如果百位为0 不显示 if(shi==0x30){ shi=0x20;//如果百位为0 十位也为0 都不显示 } } write_1602data(fuhao); write_1602data(bai); write_1602data(shi); }else{ fuhao=0x2d;//显示负号 -2.5 -25.8两种 write_1602data(0x20);//因为负数最低到55，所以不显示百位 if(shi==0x30){ write_1602data(0x20); write_1602data(fuhao); }else{ write_1602data(fuhao); write_1602data(shi); } } write_1602data(ge); write_1602data('.'); write_1602data(point); write_1602data(0xdf); write_1602data('C'); } void display_alarm(uchar add,int dat){ //把设定的时分显示出来 int x,y; x=dat/10; y=dat%10; write_1602com(add); write_1602data(int_to_char(x)); write_1602com(add+1);//防止写后地址自动向后加一 光标闪烁看不到 write_1602data(int_to_char(y)); write_1602com(add+1); } void init_alarm(){ //闹钟设置界面 只有首次进入才执行 uchar code x[]="SET ALARM"; uchar i; if(alarm==0){ write_1602com(0x01);//清屏 write_1602com(0x80+3);//设置数据指针 for(i=0;i<9;i++){ write_1602data(x[i]); } display_alarm(0x80+0x40+5,shi);//载入闹钟的时分 write_1602com(0x80+0x40+7); write_1602data(':'); display_alarm(0x80+0x40+8,fen); if(isOpen){//初始化的时候如果已经设定闹钟则显示ON write_1602com(0x80+0x40+13); write_1602data(' '); write_1602data('O'); write_1602data('N'); }else{ write_1602com(0x80+0x40+13); write_1602data('O'); write_1602data('F'); write_1602data('F'); } } } void key_scan(){ int i; uchar code tips1[]="SET SUCCESS";//闹钟设置成功的提示 uchar code tips2[]="CANCEL SUCCESS";//取消闹钟的提示 if(key_set_time==0){//检测是否按下 delay(10);//消抖 if(key_set_time==0){//再次检测是否按下 while(!key_set_time);//检测是否松开 delay(10);//延时消抖 while(!key_set_time);//再次检测是否松开 if(alarm==0){//当没有显示闹钟界面时才显示时间设定 count++; write_ds1302(0x80,0x80);//让时钟停止 if(count==8){ //继续走时，说明时间已经设定好了 write_1602com(0x0c);//让光标消失 write_ds1302(0x80,0);//让时钟继续 set_time(getTimebuf);//写入新的时间 count=0; return; } switch(count){ case 1: write_1602com(0x80+0x40+7);//在秒的位置 break; case 2: write_1602com(0x80+0x40+4);//在分的位置 break; case 3: write_1602com(0x80+0x40+1);//在时的位置 break; case 4: write_1602com(0x80+14);//在星期的位置 break; case 5: write_1602com(0x80+10);//在日的位置 break; case 6: write_1602com(0x80+7);//在月的位置 break; case 7: write_1602com(0x80+4);//在年的位置 break; } write_1602com(0x0f);//让光标闪烁 } } } if(key_add==0){//检测是否按下 delay(10);//消抖 if(key_add==0){//再次检测是否按下 while(!key_add);//检测是否松开 delay(10);//延时消抖 while(!key_add);//再次检测是否松开 if(count!=0){ switch(count){ case 1: //在秒的位置 getTimebuf[0]++; if(getTimebuf[0]==0x5a){ getTimebuf[0]=0; } if(getTimebuf[0]==0x4a){ getTimebuf[0]=0x50; } if(getTimebuf[0]==0x3a){ getTimebuf[0]=0x40; } if(getTimebuf[0]==0x2a){ getTimebuf[0]=0x30; } if(getTimebuf[0]==0x1a){ getTimebuf[0]=0x20; } if(getTimebuf[0]==0x0a){ getTimebuf[0]=0x10; } time[6]=(getTimebuf[0])/16+48;//格式化时间秒 time[7]=(getTimebuf[0])%16+48; write_1602com(0x80+0x40+6);//在秒的位置 write_1602data(time[6]); write_1602com(0x80+0x40+7);//在秒的位置 write_1602data(time[7]); write_1602com(0x80+0x40+7);//让光标在秒的位置闪烁 break; case 2: //在分的位置 getTimebuf[1]++; if(getTimebuf[1]==0x5a){ getTimebuf[1]=0; } if(getTimebuf[1]==0x4a){ getTimebuf[1]=0x50; } if(getTimebuf[1]==0x3a){ getTimebuf[1]=0x40; } if(getTimebuf[1]==0x2a){ getTimebuf[1]=0x30; } if(getTimebuf[1]==0x1a){ getTimebuf[1]=0x20; } if(getTimebuf[1]==0x0a){ getTimebuf[1]=0x10; } time[3]=(getTimebuf[1])/16+48;//格式化时间分 time[4]=(getTimebuf[1])%16+48; write_1602com(0x80+0x40+3);//在分的位置 write_1602data(time[3]); write_1602com(0x80+0x40+4);//在分的位置 write_1602data(time[4]); write_1602com(0x80+0x40+4);//让光标在分的位置闪烁 break; case 3: //在时的位置 getTimebuf[2]++; if(getTimebuf[2]==0x24){ getTimebuf[2]=0; } if(getTimebuf[2]==0x1a){ getTimebuf[2]=0x20; } if(getTimebuf[2]==0x0a){ getTimebuf[2]=0x10; } time[0]=(getTimebuf[2])/16+48;//格式化时间小时 time[1]=(getTimebuf[2])%16+48; write_1602com(0x80+0x40+0);//在小时的位置 write_1602data(time[0]); write_1602com(0x80+0x40+1); write_1602data(time[1]); write_1602com(0x80+0x40+1); break; case 4: //在星期的位置 getTimebuf[5]++; if(getTimebuf[5]==0x08){ getTimebuf[5]=0x01; } if((getTimebuf[5]%10)*3==21){//轮完了 重新开始 week[0]=weeklist[0]; week[1]=weeklist[1]; week[2]=weeklist[2]; }else{ week[0]=weeklist[(getTimebuf[5]%10)*3];//格式化星期 week[1]=weeklist[(getTimebuf[5]%10)*3+1]; week[2]=weeklist[(getTimebuf[5]%10)*3+2]; } write_1602com(0x80+12); write_1602data(week[0]); write_1602com(0x80+13); write_1602data(week[1]); write_1602com(0x80+14); write_1602data(week[2]); write_1602com(0x80+14); break; case 5: //在日的位置 getTimebuf[3]++; if(getTimebuf[3]==0x32){ getTimebuf[3]=0x01; } if(getTimebuf[3]==0x2a){ getTimebuf[3]=0x30; } if(getTimebuf[3]==0x1a){ getTimebuf[3]=0x20; } if(getTimebuf[3]==0x0a){ getTimebuf[3]=0x10; } date[8]=(getTimebuf[3])/16+48; date[9]=(getTimebuf[3])%16+48; write_1602com(0x80+9); write_1602data(date[8]); write_1602com(0x80+10); write_1602data(date[9]); write_1602com(0x80+10); break; case 6: //在月的位置 getTimebuf[4]++; if(getTimebuf[4]==0x13){ getTimebuf[4]=0x01; } if(getTimebuf[4]==0x0a){ getTimebuf[4]=0x10; } date[5]=(getTimebuf[4])/16+48; date[6]=(getTimebuf[4])%16+48; write_1602com(0x80+6); write_1602data(date[5]); write_1602com(0x80+7); write_1602data(date[6]); write_1602com(0x80+7); break; case 7: //在年的位置 getTimebuf[6]++; if(getTimebuf[6]==0x9a){ getTimebuf[6]=0x00; } if(getTimebuf[6]==0x8a){ getTimebuf[6]=0x90; } if(getTimebuf[6]==0x7a){ getTimebuf[6]=0x80; } if(getTimebuf[6]==0x6a){ getTimebuf[6]=0x70; } if(getTimebuf[6]==0x5a){ getTimebuf[6]=0x60; } if(getTimebuf[6]==0x4a){ getTimebuf[6]=0x50; } if(getTimebuf[6]==0x3a){ getTimebuf[6]=0x40; } if(getTimebuf[6]==0x2a){ getTimebuf[6]=0x30; } if(getTimebuf[6]==0x1a){ getTimebuf[6]=0x20; } if(getTimebuf[6]==0x0a){ getTimebuf[6]=0x10; } date[2]=(getTimebuf[6])/16+48; date[3]=(getTimebuf[6])%16+48; write_1602com(0x80+3); write_1602data(date[2]); write_1602com(0x80+4); write_1602data(date[3]); write_1602com(0x80+4); break; } } if(alarm!=0){ switch(alarm){ case 1: //调节闹钟的开与关 if(isOpen==0){ isOpen=1; write_1602com(0x80+0x40+13); write_1602data(' '); write_1602data('O'); write_1602data('N'); }else{ isOpen=0; write_1602com(0x80+0x40+13); write_1602data('O'); write_1602data('F'); write_1602data('F'); } //防止写后地址自动向后加一 光标闪烁看不到 write_1602com(0x80+0x40+15); break; case 2: //调节闹钟的分 fen++; if(fen==60){ fen=0; } display_alarm(0x80+0x40+8,fen); break; case 3: //调节闹钟的小时 shi++; if(shi==24){ shi=0; } display_alarm(0x80+0x40+5,shi); break; } } } } if(key_minus==0){//检测是否按下 delay(10);//消抖 if(key_minus==0){//再次检测是否按下 while(!key_minus);//检测是否松开 delay(10);//延时消抖 while(!key_minus);//再次检测是否松开 if(count!=0){ switch(count){ case 1: //在秒的位置 getTimebuf[0]--; if(getTimebuf[0]==0xff){ getTimebuf[0]=0x59; } if(getTimebuf[0]==0x4f){ getTimebuf[0]=0x49; } if(getTimebuf[0]==0x3f){ getTimebuf[0]=0x39; } if(getTimebuf[0]==0x2f){ getTimebuf[0]=0x29; } if(getTimebuf[0]==0x1f){ getTimebuf[0]=0x19; } if(getTimebuf[0]==0x0f){ getTimebuf[0]=0x09; } time[6]=(getTimebuf[0])/16+48;//格式化时间秒 time[7]=(getTimebuf[0])%16+48; write_1602com(0x80+0x40+6);//在秒的位置 write_1602data(time[6]); write_1602com(0x80+0x40+7);//在秒的位置 write_1602data(time[7]); write_1602com(0x80+0x40+7);//让光标在秒的位置闪烁 break; case 2: //在分的位置 getTimebuf[1]--; if(getTimebuf[1]==0xff){ getTimebuf[1]=0x59; } if(getTimebuf[1]==0x4f){ getTimebuf[1]=0x49; } if(getTimebuf[1]==0x3f){ getTimebuf[1]=0x39; } if(getTimebuf[1]==0x2f){ getTimebuf[1]=0x29; } if(getTimebuf[1]==0x1f){ getTimebuf[1]=0x19; } if(getTimebuf[1]==0x0f){ getTimebuf[1]=0x09; } time[3]=(getTimebuf[1])/16+48;//格式化时间分 time[4]=(getTimebuf[1])%16+48; write_1602com(0x80+0x40+3);//在分的位置 write_1602data(time[3]); write_1602com(0x80+0x40+4);//在分的位置 write_1602data(time[4]); write_1602com(0x80+0x40+4);//让光标在分的位置闪烁 break; case 3: //在时的位置 getTimebuf[2]--; if(getTimebuf[2]==0xff){ getTimebuf[2]=0x23; } if(getTimebuf[2]==0x1f){ getTimebuf[2]=0x19; } if(getTimebuf[2]==0x0f){ getTimebuf[2]=0x09; } time[0]=(getTimebuf[2])/16+48;//格式化时间小时 time[1]=(getTimebuf[2])%16+48; write_1602com(0x80+0x40+0);//在小时的位置 write_1602data(time[0]); write_1602com(0x80+0x40+1); write_1602data(time[1]); write_1602com(0x80+0x40+1); break; case 4: //在星期的位置 getTimebuf[5]--; if(getTimebuf[5]==0){ getTimebuf[5]=0x07; } if((getTimebuf[5]%10)*3==21){//轮完了 重新开始 week[0]=weeklist[0]; week[1]=weeklist[1]; week[2]=weeklist[2]; }else{ week[0]=weeklist[(getTimebuf[5]%10)*3];//格式化星期 week[1]=weeklist[(getTimebuf[5]%10)*3+1]; week[2]=weeklist[(getTimebuf[5]%10)*3+2]; } write_1602com(0x80+12); write_1602data(week[0]); write_1602com(0x80+13); write_1602data(week[1]); write_1602com(0x80+14); write_1602data(week[2]); write_1602com(0x80+14); break; case 5: //在日的位置 getTimebuf[3]--; if(getTimebuf[3]==0){ getTimebuf[3]=0x31; } if(getTimebuf[3]==0x2f){ getTimebuf[3]=0x29; } if(getTimebuf[3]==0x1f){ getTimebuf[3]=0x19; } if(getTimebuf[3]==0x0f){ getTimebuf[3]=0x09; } date[8]=(getTimebuf[3])/16+48; date[9]=(getTimebuf[3])%16+48; write_1602com(0x80+9); write_1602data(date[8]); write_1602com(0x80+10); write_1602data(date[9]); write_1602com(0x80+10); break; case 6: //在月的位置 getTimebuf[4]--; if(getTimebuf[4]==0){ getTimebuf[4]=0x12; } if(getTimebuf[4]==0x0f){ getTimebuf[4]=0x09; } date[5]=(getTimebuf[4])/16+48; date[6]=(getTimebuf[4])%16+48; write_1602com(0x80+6); write_1602data(date[5]); write_1602com(0x80+7); write_1602data(date[6]); write_1602com(0x80+7); break; case 7: //在年的位置 getTimebuf[6]--; if(getTimebuf[6]==0xff){ getTimebuf[6]=0x99; } if(getTimebuf[6]==0x8f){ getTimebuf[6]=0x89; } if(getTimebuf[6]==0x7f){ getTimebuf[6]=0x79; } if(getTimebuf[6]==0x6f){ getTimebuf[6]=0x69; } if(getTimebuf[6]==0x5f){ getTimebuf[6]=0x59; } if(getTimebuf[6]==0x4f){ getTimebuf[6]=0x49; } if(getTimebuf[6]==0x3f){ getTimebuf[6]=0x39; } if(getTimebuf[6]==0x2f){ getTimebuf[6]=0x29; } if(getTimebuf[6]==0x1f){ getTimebuf[6]=0x19; } if(getTimebuf[6]==0x0f){ getTimebuf[6]=0x09; } date[2]=(getTimebuf[6])/16+48; date[3]=(getTimebuf[6])%16+48; write_1602com(0x80+3); write_1602data(date[2]); write_1602com(0x80+4); write_1602data(date[3]); write_1602com(0x80+4); break; } } if(alarm!=0){ switch(alarm){ case 1: //调节闹钟的开与关 if(isOpen==0){ isOpen=1; write_1602com(0x80+0x40+13); write_1602data(' '); write_1602data('O'); write_1602data('N'); }else{ isOpen=0; write_1602com(0x80+0x40+13); write_1602data('O'); write_1602data('F'); write_1602data('F'); } //防止写后地址自动向后加一 光标闪烁看不到 write_1602com(0x80+0x40+15); break; case 2: //调节闹钟的分 fen--; if(fen<0){ fen=59; } display_alarm(0x80+0x40+8,fen); break; case 3: //调节闹钟的小时 shi--; if(shi<0){ shi=23; } display_alarm(0x80+0x40+5,shi); break; } } } } if(key_set_alarm==0){//检测是否按下 delay(10);//消抖 if(key_set_alarm==0){//再次检测是否按下 while(!key_set_alarm);//检测是否松开 delay(10);//延时消抖 while(!key_set_alarm);//再次检测是否松开 if(count==0){//时间在正常走动的时候才能设置闹钟 init_alarm(); alarm++;//说明进入闹钟设置界面 if(alarm==4){ alarm=0;//说明闹钟设置完毕 write_1602com(0x01);//清屏以便显示时间 write_1602com(0x0c);//关闭光标 //显示设置成功或取消的提示 if(isOpen){ write_1602com(0x80+2); for(i=0;i<11;i++){ write_1602data(tips1[i]); } }else{ write_1602com(0x80+1); for(i=0;i<14;i++){ write_1602data(tips2[i]); } } //延时2ms后清屏显示时间 delay(2000); write_1602com(0x01); }else{ switch(alarm){ case 1: write_1602com(0x80+0x40+15); break; case 2: write_1602com(0x80+0x40+9); break; case 3: write_1602com(0x80+0x40+6); break; } write_1602com(0x0f); } } } } } void beep(){ //检测闹钟 并且报警 if(time[0]==int_to_char(shi/10)&&time[1]==int_to_char(shi%10)&&time[3]==int_to_char(fen/10)&&time[4]==int_to_char(fen%10)){ isRing=1;//闹钟响起，此时如果进入闹钟设置界面 改变时分，闹钟就关闭了 bee=0; delay(250); bee=1; delay(250); }else{ isRing=0;//关闭闹钟或者一分钟后闹钟自动关闭 bee=1; } } void delay1(int i){ while(i--); } void ds18b20_init(){ uchar x=0; dq = 1; //DQ复位 delay1(8); //稍做延时 dq = 0; //单片机将DQ拉低 delay1(80); //精确延时 大于 480us dq = 1; //拉高总线 delay1(14); x=dq; //稍做延时后 如果x=0则初始化成功 x=1则初始化失败 delay1(20); } uchar ds18b20_read(){ //读一个字节 uchar i=0; uchar dat = 0; for (i=8;i>0;i--) { dq = 0; // 给脉冲信号 dat>>=1; dq = 1; // 给脉冲信号 if(dq) dat|=0x80; delay1(4); } return(dat); } void ds18b20_write(char dat){ //写一个字节 uchar i=0; for (i=8; i>0; i--) { dq = 0; dq = dat&0x01; delay1(5); dq = 1; dat>>=1; } } int ds18b20_read_temp(){ //读取温度 uchar low; uchar high; unsigned long tmp; float value; int t;//温度 ds18b20_init(); ds18b20_write(0xCC); //跳过读序列号的操作 ds18b20_write(0x44); //启动温度转换 ds18b20_init(); ds18b20_write(0xCC); //跳过读序列号的操作 ds18b20_write(0xBE); //读取温度寄存器 共九个 前两个代表温度 low=ds18b20_read();//低八位数据 high=ds18b20_read();//高八位数据 tmp=high; tmp<<=8; tmp=tmp|low; //此处有正负之分 if(tmp>=63488){//ffff f000 0000 0000-->(f800) temp_flag=0; //8位全为1时，加1才进位 if((~low)==0xff){//判断low取反加1之后是否进位 high=(~high)+1; low=0; }else{ high=~high; low=(~low)+1; } tmp=high*256+low; }else{ temp_flag=1; } value=tmp*0.0625; t=value*10+((temp_flag==1)?+0.5:-0.5);//放大十倍输出并四舍五入 return t; } void main(){ init_1602(); init_ds1302(); while(1){ display(); if(isOpen){//只有开启闹钟的时候才检测 beep();//不断检测闹钟 } key_scan(); if(count==0&&alarm==0){//没有设定时间 也没有在闹钟界面的时候时间才显示 display(); } } } |
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2014-12-18 11:52:32
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应该是时间不对，缩短送数据的时间试一试。
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我是小白啦 第一次要做出实物 这程序还在读懂的过程 能告诉我哪里能缩短送数据的时间吗 麻烦了 |
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2014-12-18 20:18:58
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你用的是指令延时，使用定时器延时，应该不会出现这种情况。
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程序一定是复制了几个组合在一起的，
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我的是时间正常，而温度不正常
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