嵌入式电子闹钟时钟课程设计_电子闹钟课程设计

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#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);