Single chip electronic perpetual calendar with lunar calendar display-EEWORLD

Collect

temp=(miao)/10*16+(miao)%10; //Convert decimal into DCB code required by DS1302

write_1302(0x8e,0x00); //Allow writing, disable write protection

write_1302(0x80,0x80|temp); //Write the adjusted second data BCD code to the second register 80H in DS1302

write_1302(0x8e,0x80); //Open write protection

//write_1602com(0x0b);

break;

case 5:

fen--;

if(fen==-1)

fen=59;

write_sfm(3,fen);

write_1602com(er+4); //Because the LCD mode is set to write data, the pointer automatically increases by one, so here it is written back to the original position

temp=(fen)/10*16+(fen)%10; //Convert decimal to DCB code required by DS1302

write_1302(0x8e,0x00); //Allow writing, disable write protection

write_1302(0x82,temp); //Write the adjusted sub-data BCD code to the sub-register 82H in DS1302

write_1302(0x8e,0x80); //Open write protection

break;

case 4:

he--;

if(shi==-1)

it=23;

write_sfm(0,shi);

temp=(shi)/10*16+(shi)%10; //Convert decimal into DCB code required by DS1302

write_1302(0x8e,0x00); //Allow writing, disable write protection

write_1302(0x84,temp); //Write the adjusted hour data BCD code to hour register 84H in DS1302

write_1302(0x8e,0x80); //Open write protection

write_1602com(er+1); //Because the LCD mode is set to write data, the pointer automatically increases by one, so the cursor needs to return to its original position

break;

case 4:week--;

if(week==0)

week=7;

write_1602com(yh+0x0C); //Specify the position of weekly data display after 'add'

write_week(week); //Specify the weekly data display content

temp=(week)/10*16+(week)%10; //Convert decimal to DCB code required by DS1302

write_1302(0x8e,0x00); //Allow writing, disable write protection

write_1302(0x8a,temp); //Write the adjusted week data BCD code to the week register 8aH in DS1302

write_1302(0x8e,0x80); //Open write protection

write_1602com(yh+0x0e);//Because the LCD mode is set to write data, the pointer automatically increases by one, so the cursor needs to return to its original position

break;

case 3:

ri--;

if((yue==1)||(yue==3)||(yue==5)||(yue==7)||(yue==8)||(yue==10)||(yue==12))

{

if(ri==0)

ri=31;

}

else

{

if(yue==2)

{

if(p_r==1)

{

if(ri==0)

ri=29;

}

else

{

if(ri==0)

ri=28;

}

else

{

if(ri==0)

ri=30;

}

Conver_week(nian,yue,ri);

write_week(week);

write_nyr(9,ri);

temp=(ri)/10*16+(ri)%10; //Convert decimal into DCB code required by DS1302

write_1302(0x8e,0x00); //Allow writing, disable write protection

write_1302(0x86,temp); //Write the adjusted date data BCD code to date register 86H in DS1302

write_1302(0x8e,0x80); //Open write protection

write_1602com(yh+10);//Because the LCD mode is set to write data, the pointer automatically increases by one, so the cursor needs to return to its original position

break;

case 2:

yue--;

if(yue==0)

yue=12;

if((yue==4)||(yue==6)||(yue==9)||(yue==11))

{

if(ri>30)

ri=1;

}

else

{

if(yue==2)

{

if(p_r==1)

{

if(ri>29)

ri=1;

}

else

{

if(ri>28)

ri=1;

}

Conver_week(nian,yue,ri);

write_week(week);

write_nyr(6,yue);

temp=(yue)/10*16+(yue)%10; //Convert decimal into DCB code required by DS1302

write_1302(0x8e,0x00); //Allow writing, disable write protection

write_1302(0x88,temp); //Write the adjusted month data BCD code to month register 88H in DS1302

write_1302(0x8e,0x80); //Open write protection

write_1602com(yh+7);//Because the LCD mode is set to write data, the pointer automatically increases by one, so the cursor needs to return to its original position

break;

case 1:

our--

if(nian==-1)

ours=99;

nian_temp=2000+nian;

if((nian_temp%400==0)||((nian_temp%100!=0)&&(nian_temp%4==0))) //Judge whether it is a leap year

p_r=1;

else

p_r=0;

Conver_week(nian,yue,ri);

write_week(week);