51单片机实现万年历程序文件.docx
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51单片机实现万年历程序文件
51单片机实现万年历
利用AT89S52单片机的P0口来和另外几个口来控制1602液晶的显示和P1口还有其它口来控制ds12887时钟芯片。
设置四个按键,1个定义为时间设置功能键,一个定义为闹钟设置功能键,另外两个用来调节时间的增减。
原理图:
pcb图:
源程序:
#include
#defineuintunsignedint
#defineucharunsignedchar
sbitbeep=P2^0;//蜂鸣器控制口
sbittimeadd=P2^1;//调节时间加
sbittimesub=P2^2;//调节时间减
sbittimeclk=P2^3;//闹钟设定键
sbittimefun=P2^4;//时间设定键
sbitlcdrs=P2^5;//液晶的命令和数据控制口
sbitledrw=P2^6;//液晶的写数据口
sbitlcden=P2^7;//液晶显示模块的使能端
sbittimeds=P3^3;//时钟芯片地址闸
sbittimerw=P3^4;//时钟芯片读写
sbittimeas=P3^5;//时钟芯片地址闸
sbittimeen=P3^6;//时钟芯片片选
ucharcodetable[]="20 - - week";
ucharcodetable1[]=" :
:
";//要显示的字符串
charnum,shi,fen,miao,nian=2000,yue,ri,week,numfun,anumfun,flag,flag1;
ucharleap;
voiddelay(uintx){
uchari,j;
for(i=x;i>0;i--)
for(j=110;j>0;j--);
}
voiddidi()
{
beep=0;
delay(1000);
beep=1;
delay(1000);
}
voidwrite_com(ucharcom){
lcdrs=0;
P0=com;
delay(5);
lcden=1;
delay(20);
lcden=0;
}
voidwrite_date(uchardate){
lcdrs=1;
P0=date;
delay(5);
lcden=1;
delay(20);
lcden=0;
}
voidwrite_sfm(ucharadd,uchardate){
ucharshi,ge;
shi=date/10;
ge=date%10;
write_com(0x80+0x40+add);
write_date(0x30+shi);
write_date(0x30+ge);
}
voidwrite_nyr(ucharadd,uchardate){
ucharshi,ge;
shi=date/10;
ge=date%10;
write_com(0x80+add);
write_date(0x30+shi);
write_date(0x30+ge);
}
voidwrite_zhou(ucharadd,uchardate)
{
write_com(0x80+add);
write_date(0x30+date);
}
voidwrite_ds(ucharadd,uchardate){
timeen=0;
timeas=1;
timeds=1;
timerw=1;
P1=add;
timeas=0;
timerw=0;
P1=date;
timerw=1;
timeas=1;
timeen=1;
}
ucharread_ds(ucharadd){
uchards_date;
timeas=1;
timeds=1;
timerw=1;
timeen=0;
P1=add;
timeas=0;
timeds=0;
P1=0xff;
ds_date=P1;
timeds=1;
timeas=1;
timeen=1;
returnds_date;
}
voidkeyscan(){
if(flag1==1)//用来关闭闹钟铃声
{
if(timeadd==0)
{
delay(5);
if(timeadd==0)
{
while(!
timeadd==0);
flag1=0;
}
}
if(timesub==0)
{
delay(5);
if(timesub==0)
{
while(!
timesub==0);
flag1=0;
}
}
}
if(timefun==0)
{
delay(5);
if(timefun==0)
{
while(!
timefun);
flag=1;
numfun++;
if(numfun==1)
{
write_com(0x80+0x40+0x0a);
write_com(0x0f);
}
if(numfun==2)
{
write_com(0x80+0x40+0x07);
write_com(0x0f);
}
if(numfun==3)
{
write_com(0x80+0x40+0x04);
write_com(0x0f);
}
if(numfun==4)
{
write_com(0x80+0x0f);
write_com(0x0f);
}
if(numfun==5)
{
write_com(0x80+0x09);
write_com(0x0f);
}
if(numfun==6)
{
write_com(0x80+0x06);
write_com(0x0f);
}
if(numfun==7)
{
write_com(0x80+0x03);
write_com(0x0f);
}
if(numfun==8)
{
numfun=0;
flag=0;
}
}
}
if(numfun!
=0)
{
if(timeadd==0)
{
delay(5);
while(!
timeadd);
if(numfun==1)
{
miao++;
if(miao==60)
miao=0;
write_sfm(9,miao);
write_com(0x80+0x40+9);
write_ds(0,miao);
}
if(numfun==2)
{
fen++;
if(fen==60)
fen=0;
write_sfm(6,fen);
write_com(0x80+0x40+6);
write_ds(2,fen);
}
if(numfun==3)
{
shi++;
if(shi==24)
shi=0;
write_sfm(3,shi);
write_com(0x80+0x40+3);
write_ds(4,shi);
}
if(numfun==4)
{
week++;
if(week==8)
week=1;
write_zhou(0x0f,week);
write_com(0x80+0x0f);
write_ds(6,week);
}
if(numfun==5)
{
if(nian==0)
{
switch(yue){
case1:
ri++;if(ri==32)ri=1;break;
case2:
ri++;if(ri==30)ri=1;break;
case3:
ri++;if(ri==32)ri=1;break;
case4:
ri++;if(ri==31)ri=1;break;
case5:
ri++;if(ri==32)ri=1;break;
case6:
ri++;if(ri==31)ri=1;break;
case7:
ri++;if(ri==32)ri=1;break;
case8:
ri++;if(ri==32)ri=1;break;
case9:
ri++;if(ri==31)ri=1;break;
case10:
ri++;if(ri==32)ri=1;break;
case11:
ri++;if(ri==31)ri=1;break;
case12:
ri++;if(ri==32)ri=1;break;
}
}
elseif(leap&&yue==2)
{
ri++;
if(ri==30)
ri=1;
}
elseif(yue==2&&leap==0)
{
ri++;
if(ri==29)
ri=1;
}
else
switch(yue){
case1:
ri++;if(ri==32)ri=1;break;
case3:
ri++;if(ri==32)ri=1;break;
case4:
ri++;if(ri==31)ri=1;break;
case5:
ri++;if(ri==32)ri=1;break;
case6:
ri++;if(ri==31)ri=1;break;
case7:
ri++;if(ri==32)ri=1;break;
case8:
ri++;if(ri==32)ri=1;break;
case9:
ri++;if(ri==31)ri=1;break;
case10:
ri++;if(ri==32)ri=1;break;
case11:
ri++;if(ri==31)ri=1;break;
case12:
ri++;if(ri==32)ri=1;break;
}
write_nyr(8,ri);
write_com(0x80+0x08);
write_ds(7,ri);
}
if(numfun==6)
{
yue++;
if(yue==13)
yue=0;
write_nyr(5,yue);
write_com(0x80+0x05);
write_ds(8,yue);
}
if(numfun==7)
{
nian++;
if(nian==100)
nian=0;
leap=nian%4==0&&nian%100!
=0;
write_nyr(2,nian);
write_com(0x80+2);
write_ds(9,nian);
}
}
if(timesub==0)
{
delay(5);
while(!
timesub);
if(numfun==1)
{
miao--;
if(miao==-1)
miao=59;
write_sfm(9,miao);
write_com(0x80+0x40+9);
write_ds(0,miao);
}
if(numfun==2)
{
fen--;
if(fen==-1)
fen=59;
write_sfm(6,fen);
write_com(0x80+0x40+6);
write_ds(2,fen);
}
if(numfun==3)
{
shi--;
if(shi==-1)
shi=23;
write_sfm(3,shi);
write_com(0x80+0x40+3);
write_ds(4,shi);
}
if(numfun==4)
{
week--;
if(week==0)
week=7;
write_zhou(0x0f,week);
write_com(0x80+0x0f);
write_ds(6,week);
}