#include //头文件 #include #define uchar unsigned char //宏定义 #define uint unsigned int //位定义
sbit rs=P2^5; //液晶位定义 sbit lcden=P2^7; sbit s1=P2^0; //时间功能切换按键 sbit s2=P2^1; //按键加 sbit s3=P2^3; //按键减
sbit s4=P2^4; //闹钟功能切换键 sbit rst=P1^5; //ds1302引脚定义 sbit io=P1^6; sbit sclk=P1^7; sbit beep=P3^0; //蜂鸣器
uchar num,count,shi,fen,miao,s1num,s2num, year,month,day,week,flag,flag1,year1,month1, day1,week1,shi1,fen1,miao1,year2,month2, day2,week2,shi2,fen2,miao2,year5,month5, day5,week5,shi5,fen5,miao5,wk,ashi,afen; //参数定义
uchar code table[]=\"20 - - \"; //液晶固定显示 uchar code table1[]=\" : : 00:00\"; /* uchar time_dat[7]={12,1,6,6,12,59,59}; //年周月日时分秒 uchar write_add[7]={0x8c,0x8a,0x88,0x86,0x84,0x82,0x80}; uchar read_add[7]={0x8d,0x8b,0x89,0x87,0x85,0x83,0x81}; */ void write_com(uchar com); //液晶写指令函数 void write_data(uchar date); //液晶写数据函数
void write_ds1302(uchar add,uchar dat); //ds1302芯片写指令函数 void set_rtc(); //ds1302时间设置函数 void time_pros(); //ds1302进制转换函数 void read_rtc(); //ds1302读时间函数 void alarm(); //闹钟函数
void delay(uint z) //延时函数 { uint x,y; for(x=z;x>0;x--) for(y=110;y>0;y--); } void init() //初始化 { lcden=0; flag=0; flag1=0; write_com(0x38); write_com(0x0c); write_com(0x06); write_com(0x01); write_com(0x80); //液晶固定显示，第一行 for(num=0;num
write_com(0x80+0x40); //液晶显示第二行 for(num=0;num
void write_com(uchar com)//1602液晶写指令 { rs=0; P0=com; delay(5); lcden=1; delay(5); lcden=0; }
void write_data(uchar date)//1602液晶写写数据 { rs=1; P0=date; delay(5); lcden=1; delay(5); lcden=0; }
void write_sfm(uchar add,uchar date)//时分秒 { uchar shi3,ge; shi3=date/10; ge=date%10; write_com(0x80+0x40+add); write_data(0x30+shi3); write_data(0x30+ge); }
void write_nyr(uchar ad,uchar date)//年月日 { uchar shi4,ge2; shi4=date/10; ge2=date%10; write_com(0x80+ad); write_data(0x30+shi4); write_data(0x30+ge2); }
void write_week(uchar wk) //星期按西方星期设置{ write_com(0x80+11); switch(wk) { case 1: write_data(\'S\'); delay(5); write_data(\'U\'); delay(5); write_data(\'N\'); break;
case 2: write_data(\'M\'); delay(5); write_data(\'O\'); delay(5); write_data(\'N\'); break;
case 3: write_data(\'T\');
星期天为第一天 delay(5); write_data(\'U\'); delay(5); write_data(\'E\'); break;
case 4: write_data(\'W\'); delay(5); write_data(\'E\'); delay(5); write_data(\'D\'); break;
case 5: write_data(\'T\'); delay(5); write_data(\'H\'); delay(5); write_data(\'U\'); break;
case 6: write_data(\'F\'); delay(5); write_data(\'R\'); delay(5); write_data(\'T\'); break;
case 7: write_data(\'S\'); delay(5); write_data(\'A\'); delay(5); write_data(\'T\'); break;
} }
void keyscan() //{ if(s1==0) { delay(5);
按键函数 if(s1==0) { write_com(0x0f); s1num++; //记录按键次数 flag=1; flag1=1; while(!s1);
switch(s1num)//光标闪烁点定位 { case 1:write_com(0x80+0x40+6); //秒 break;
case 2:write_com(0x80+0x40+3); //分 break;
case 3:write_com(0x80+0x40+0); //时 break;
case 4:write_com(0x80+11); //星期 break; case 5:write_com(0x80+8); //日 break;
case 6:write_com(0x80+5); //月 break;
case 7:write_com(0x80+2); //年 break;
case 8:s1num=0; write_com(0x0c);//设置开显示光标不显示 关闭时间设置
set_rtc(); flag=0; break; }
} }
if(s1num!=0) //按键加减 { if(s2==0) //加按键函数 { delay(10); if(s2==0) {
while(!s2); switch(s1num) //根据功能键相应次数做出调节 { case 1: miao++; //秒加 if(miao==60) miao=0; write_sfm(6,miao); write_com(0x80+0x40+6); break;
case 2: fen++; // if(fen==60) fen=0; write_sfm(3,fen); write_com(0x80+0x40+3); break;
case 3: shi++; // if(shi==24) shi=0; write_sfm(0,shi); write_com(0x80+0x40+0); break;
case 4: week++; // if(week==8) week=1; write_week(week); write_com(0x80+11); break;
case 5: day++; // if(day==32) day=1; write_nyr(8,day); write_com(0x80+8); break;
case 6: month++; //分加 时加 星期加日加 月加
if(month==13) month=1; write_nyr(5,month); write_com(0x80+5); break;
case 7: year++; //年加 if(year==100) year=0; write_nyr(2,year); write_com(0x80+2); break;
}
}
}
if(s3==0) //减按键函数同上 { delay(10); if(s3==0) { while(!s3); switch(s1num) //根据功能键相应次数做出调节 { case 1: miao--; if(miao==-1) miao=59; write_sfm(6,miao); write_com(0x80+0x40+6); break;
case 2: fen--; if(fen==-1) fen=59; write_sfm(3,fen); write_com(0x80+0x40+3); break;
case 3: shi--; if(shi==-1) shi=23; write_sfm(0,shi); write_com(0x80+0x40+0); break;
case 4: week--; if(week==-1) week=7; write_week(week); write_com(0x80+11); break;
case 5: day--; if(day==-1) day=31; write_nyr(8,day); write_com(0x80+8); break;
case 6: month--; if(month==-1) month=12; write_nyr(5,month); write_com(0x80+5); break;
case 7: year--; if(year==-1) year=99; write_nyr(2,year); write_com(0x80+2); break;
}
} }
}
if(s4==0) // { delay(5);
闹钟按键 if(s4==0) { write_com(0x0f); //光标闪烁 s2num++; //记录按键次数 flag=1; while(!s4); switch(s2num)//光标闪烁点定位 { case 1:write_com(0x80+0x40+13); //分 break;
case 2:write_com(0x80+0x40+10); //时 break;
case 3:write_com(0x0c); //关闭闹钟设置 flag=0; s2num=0; break;
}
} }
if(s2num!=0) //闹钟设置 { if(s2==0) //闹钟加 { delay(10); if(s2==0) { while(!s2); switch(s2num) //根据功能键相应次数做出调节 { case 1: afen++; if(afen==60) afen=0; write_sfm(13,afen); write_com(0x80+0x40+13); break;
case 2: ashi++; if(ashi==24) ashi=0; write_sfm(10,ashi); write_com(0x80+0x40+10); break;
} } }
if(s3==0) //闹钟减 { delay(10); if(s3==0) { while(!s3); switch(s2num) //根据功能键相应次数做出调节 { case 1: afen--; if(afen==-1) afen=59; write_sfm(13,afen); write_com(0x80+0x40+13); break;
case 2: ashi--; if(ashi==-1) ashi=23; write_sfm(10,ashi); write_com(0x80+0x40+10); break;
} } }
} }
void wirte_ds1302_byte(uchar dat) //ds1302字节写 { uchar i; for(i=0;i>1; sclk=1; } }
void write_ds1302(uchar add,uchar dat) //ds1302写函数 { rst=0; _nop_();// 空操作 sclk=0; _nop_(); rst=1; _nop_(); wirte_ds1302_byte(add); wirte_ds1302_byte(dat); rst=0; io=1; sclk=1; }
uchar read_ds1302(uchar add) //ds1302{ uchar i,value; rst=0; _nop_();// 空操作 sclk=0; _nop_(); rst=1; _nop_(); wirte_ds1302_byte(add); for(i=0;i>1; sclk=0; if(io) { value=value|0x80; } sclk=1; } rst=0; _nop_();// 空操作 sclk=0; _nop_();
读函数 sclk=1; io=1; return value; }
void set_rtc() //ds1302时间设置 { write_ds1302(0x8e,0x00); //关写保护
year1=year/10; //转换为十六进制 year=year%10; year=year+year1*16; write_ds1302(0x8c,year);
week1=week/10; week=week%10; week=week+week1*16; write_ds1302(0x8a,week);
month1=month/10; month=month%10; month=month+month1*16; write_ds1302(0x88,month);
day1=day/10; day=day%10; day=day+day1*16; write_ds1302(0x86,day);
shi1=shi/10; shi=shi%10; shi=shi+shi1*16; write_ds1302(0x84,shi);
fen1=fen/10; fen=fen%10; fen=fen+fen1*16; write_ds1302(0x82,fen);
miao1=miao/10; miao=miao%10; miao=miao+miao1*16; write_ds1302(0x80,miao);
write_ds1302(0x8e,0x80); //开写保护 flag1=0; }
void read_rtc() //从ds1302中读时间 { year2=read_ds1302(0x8d); week2=read_ds1302(0x8b); month2=read_ds1302(0x89); day2=read_ds1302(0x87); shi2=read_ds1302(0x85); fen2=read_ds1302(0x83); miao2=read_ds1302(0x81); }
void time_pros() //进制 {
year5=year2/16; year2=year2%16; year2=year2+year5*10;
month5=month2/16; month2=month2%16; month2=month2+month5*10;
day5=day2/16; day2=day2%16; day2=day2+day5*10;
shi5=shi2/16; shi2=shi2%16; shi2=shi2+shi5*10;
fen5=fen2/16; fen2=fen2%16; fen2=fen2+fen5*10;
miao5=miao2/16; miao2=miao2%16; miao2=miao2+miao5*10;
从ds1302中读出的时间转换为十
}
void display() //显示函数 { write_sfm(6,miao2); write_com(0x80+0x40+6);
write_sfm(3,fen2); write_com(0x80+0x40+3);
write_sfm(0,shi2); write_com(0x80+0x40+0);
write_week(week2); write_com(0x80+11);
write_nyr(8,day2); write_com(0x80+8);
write_nyr(5,month2); write_com(0x80+5);
write_nyr(2,year2); write_com(0x80+2);
if((ashi==shi2)&&(afen==fen2)) { alarm(); } }
void alarm() // 闹钟 { beep=0; delay(1000); beep=1; } void main() //主函数 { init(); //初始化 while(1) { keyscan(); //按键函数
if(flag==0) { keyscan(); read_rtc(); time_pros(); display(); }
} }
