DS1302控制代码
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/*******************************************
修改小时
*******************************************/
if(cnt==5)
{
temp=read_1302(0x85);
shi=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
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键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
shi--;
if(shi==-1)
{
shi=23;
}
write_1302(0x8e,0x00);
write_1302(0x84,(shi/10)<<4|(shi%10));
DisplayHours(shi);
write_1302(0x8e,0x80);
}
}
}
/*******************************************
修改分钟
*******************************************/
if(cnt==6)
{
temp=read_1302(0x83);
fen=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
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键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
fen--;
if(fen==-1)
{
fen=59;
}
write_1302(0x8e,0x00);
write_1302(0x82,(fen/10)<<4|(fen%10));
DisplayMinutes(fen);
write_1302(0x8e,0x80);
}
}
}
/*******************************************
修改秒钟
*******************************************/
if(cnt==7)
{
temp=read_1302(0x81);
miao=((temp&0x70)>>4)*10+(temp&0x0F);
if(K2==0)
{
delay(5);
if(K2==0)//K2键实现加
{
while(!K2);
delay(5);
while(!K2);//确保K2键松开
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键实现减
{
while(!K3);
delay(5);
while(!K3);//确保K3键松开
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;
}
}
/*************************************
主函数
*************************************/
void main()
{
lcdInit();
flag1302=read_1302(0x81);
if(flag1302&0x80)//秒钟的最高位为1才需要初始化
{
Init_1302();
}
while(1)
{
change();
read_date();
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