DS12C887电子时钟附程序.docx
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DS12C887电子时钟附程序.docx
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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
P1.0P1.1P1.2
P0.0~P0.7
.下载可编辑.
....
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
.下载可编辑.
....
源程序
#include
#include
#defineuintunsignedint
#defineucharunsignedchar
sbitlcdrs=P1^0;
sbitrw=P1^1;
sbitlcden=P1^2;
sbits1=P3^4;
//
功能键
sbits2=P3^5;
//
增大键
sbits3=P3^6;
//
减小键
sbits4=P3^7;
//
闹铃查看键
sbitbeep=P1^3;//
蜂鸣器
sbitdscs=P1^7;
sbitdsas=P1^6;
sbitdsrw=P1^5;
sbitdsds=P1^4;
sbitdsirq=P3^3;//
中断
bitflag1,flag_ri;//
定义标志位
flag1设置闹铃
ucharcount,s1num,flag,t0_num;
charmiao,shi,fen,year,month,day,week,amiao,afen,ashi;
charcodetable[]="20--";//20--
ucharcodetable1[]=":
:
";//:
:
voidwrite_ds(uchar,uchar);ucharread_ds(uchar);voidset_time();voidread_alarm();voidset_alarm(uchar,uchar,uchar);
voiddelayms(uintz)//延时毫秒的程序
{
uintx,y;
for(x=z;x>0;x--)
for(y=112;y>0;y--);
}
voiddi()
{
beep=0;
delayms(100);
beep=1;
}
voidwrite_cmd(ucharcmd)
{
lcden=0;
lcdrs=0;
P0=cmd;
_nop_();
.下载可编辑.
....
lcden=1;
delayms
(1);
lcden=0;
_nop_();
}
voidwrite_dat(uchardat)
{
lcden=0;
lcdrs=1;
P0=dat;
_nop_();
lcden=1;
delayms
(1);
lcden=0;
_nop_();
}
voidlcdint()
{
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);
}
voidinit()
{
ucharnum;
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++)
.下载可编辑.
....
{
write_dat(table1[num]);
}
}
voidwrite_sfm(ucharadd,chardate)//写时间,2位一起写
{
charshi,ge;
shi=date/10;ge=date%10;
write_cmd(0xc0+add);
write_dat(0x30+shi);
write_dat(0x30+ge);
}
voidwrite_nyr(ucharadd,chardate)//年月日
{
charshi,ge;
shi=date/10;ge=date%10;
write_cmd(0x80+add);
write_dat(0x30+shi);
write_dat(0x30+ge);
}
voidwrite_week(charwe)//星期
{
write_cmd(0x80+12);
switch(we)
{
case1:
write_dat('M');write_dat('O');write_dat('N');break;
case2:
write_dat('T');write_dat('U');write_dat('E');break;
case3:
write_dat('W');write_dat('E');write_dat('D');break;
case4:
write_dat('T');write_dat('H');write_dat('U');break;
case5:
write_dat('F');write_dat('R');write_dat('I');break;
case6:
write_dat('S');write_dat('A');write_dat('T');break;
case7:
write_dat('S');write_dat('U');write_dat('N');break;
}
}
voidkeyscan()
{
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();
.下载可编辑.
....
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)
{
case1:
write_cmd(0xc0+10);write_cmd(0x0f);break;//按一下秒
钟指针显示闪烁
case2:
write_cmd(0xc0+7);break;
case3:
write_cmd(0xc0+4);break;
case4:
write_cmd(0x80+12);break;
case5:
write_cmd(0x80+9);break;
case6:
write_cmd(0x80+6);break;
case7:
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;
.下载可编辑.
....
}
}
}
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)
{
case1:
miao++;
if(miao>59)
{
miao=0;
}
write_sfm(10,miao);
write_cmd(0x80+0x40+10);
break;
case2:
fen++;
if(fen>59)
{
fen=0;
}
write_sfm(7,fen);
write_cmd(0x80+0x40+7);
break;
case3:
shi++;
if(shi>23)
{
shi=0;
}
write_sfm(4,shi);
write_cmd(0x80+0x40+4);
break;
case4:
week++;
if(week>7)
{
.下载可编辑.
....
week=1;
}
write_week(week);
write_cmd(0x80+12);
break;
case5:
day++;
if(day>31)
{
day=1;
}
write_nyr(9,day);
write_cmd(0x80+9);
break;
case6:
month++;
if(month>12)
{
month=1;
}
write_nyr(6,month);
write_cmd(0x80+6);
break;
case7:
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)
{
case1:
.下载可编辑.
....
miao--;
if(miao<0)
{
miao=59;
}
write_sfm(10,miao);
write_cmd(0x80+0x40+10);
break;
case2:
fen--;
if(fen<0)
{
fen=59;
}
write_sfm(7,fen);
write_cmd(0x80+0x40+7);
break;
case3:
shi--;
if(shi<0)
{
shi=23;
}
write_sfm(4,shi);
write_cmd(0x80+0x40+4);
break;
case4:
week--;
if(week<1)
{
week=7;
}
write_week(week);
write_cmd(0x80+12);
break;
case5:
day--;
if(day<1)
{
day=31;
}
write_nyr(9,day);
write_cmd(0x80+9);
break;
.下载可编辑.
....
case6:
month--;
if(month<1)
{
month=12;
}
write_nyr(6,month);
write_cmd(0x80+6);
break;
case7:
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;
.下载可编辑.
....
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);
}
}
}
}
voidwrite_ds(ucharadd,uchardate)//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;
}
ucharread_ds(ucharadd)//读12c887
{
uchards_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;
returnds_date;
}
/*voidset_time()//初始化
{
.下载可编辑.
....
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
}*/
voidread_alarm()
{
amiao=read_ds
(1);
afen=read_ds(3);
ashi=read_ds(5);
}
voidmain()
{
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);
.下载可编辑.
....
write_nyr(3,year);
write_nyr(6,month);
write_nyr(9,day);
}
}
}
voidexter()interrupt2//闹铃外部中断1
{
ucharc;//闹铃时间到
flag_ri=1;
c=read_ds(0x0c);//读C寄存器表示响应中断
}
.下载可编辑.
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