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EEPW首頁(yè) > 嵌入式系統(tǒng) > 設(shè)計(jì)應(yīng)用 > DS1302控制代碼

DS1302控制代碼

作者：時(shí)間：2016-12-01 來(lái)源：網(wǎng)絡(luò)

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/*******************************************

修改小時(shí)

*******************************************/

if(cnt==5)

{

temp=read_1302(0x85);

shi=((temp&0x70)>>4)*10+(temp&0x0F);

if(K2==0)

{

delay(5);

if(K2==0)//K2鍵實(shí)現(xiàn)加

{

while(!K2);

delay(5);

while(!K2);//確保K2鍵松開

shi++;

if(shi>=24)

{

shi=0;

}

write_1302(0x8e,0x00);

write_1302(0x84,(shi/10)<<4|(shi%10));

DisplayHours(shi);

write_1302(0x8e,0x80);

}

}

if(K3==0)

{

delay(5);

if(K3==0)//K3鍵實(shí)現(xiàn)減

{

while(!K3);

delay(5);

while(!K3);//確保K3鍵松開

shi--;

if(shi==-1)

{

shi=23;

}

write_1302(0x8e,0x00);

write_1302(0x84,(shi/10)<<4|(shi%10));

DisplayHours(shi);

write_1302(0x8e,0x80);

}

}

}

/*******************************************

修改分鐘

*******************************************/

if(cnt==6)

{

temp=read_1302(0x83);

fen=((temp&0x70)>>4)*10+(temp&0x0F);

if(K2==0)

{

delay(5);

if(K2==0)//K2鍵實(shí)現(xiàn)加

{

while(!K2);

delay(5);

while(!K2);//確保K2鍵松開

fen++;

if(fen>=60)

{

fen=0;

}

write_1302(0x8e,0x00);

write_1302(0x82,(fen/10)<<4|(fen%10));

DisplayMinutes(fen);

write_1302(0x8e,0x80);

}

}

if(K3==0)

{

delay(5);

if(K3==0)//K3鍵實(shí)現(xiàn)減

{

while(!K3);

delay(5);

while(!K3);//確保K3鍵松開

fen--;

if(fen==-1)

{

fen=59;

}

write_1302(0x8e,0x00);

write_1302(0x82,(fen/10)<<4|(fen%10));

DisplayMinutes(fen);

write_1302(0x8e,0x80);

}

}

}

/*******************************************

修改秒鐘

*******************************************/

if(cnt==7)

{

temp=read_1302(0x81);

miao=((temp&0x70)>>4)*10+(temp&0x0F);

if(K2==0)

{

delay(5);

if(K2==0)//K2鍵實(shí)現(xiàn)加

{

while(!K2);

delay(5);

while(!K2);//確保K2鍵松開

miao++;

if(miao>=60)

{

miao=0;

}

write_1302(0x8e,0x00);

write_1302(0x80,(miao/10)<<4|(miao%10));

DisplaySeconds(miao);

write_1302(0x8e,0x80);

}

}

if(K3==0)

{

delay(5);

if(K3==0)//K3鍵實(shí)現(xiàn)減

{

while(!K3);

delay(5);

while(!K3);//確保K3鍵松開

miao--;

if(miao==-1)

{

miao=59;

}

write_1302(0x8e,0x00);

write_1302(0x80,(miao/10)<<4|(miao%10));

DisplaySeconds(miao);

write_1302(0x8e,0x80);

}

}

}

if(cnt==8)

{

cnt=0;

}

}

/*************************************

主函數(shù)

*************************************/

void main()

{

lcdInit();

flag1302=read_1302(0x81);

if(flag1302&0x80)//秒鐘的最高位為1才需要初始化

{

Init_1302();

}

while(1)

{

change();

read_date();

}

}

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