/// Read the current data from CMOS memory
void kRTC::kReadRTCDate(WORD* pwYear, BYTE* pbMonth, BYTE* pbDayOfMonth,
BYTE* pbDayOfWeek)
{
BYTE bData;
// Set the register storing year
// to CMOS memory address register (port 0x70)
a_pclPort->kOutPortByte(RTC_CMOSADDRESS, RTC_ADDRESS_YEAR);
// Read year from CMOS data register (port 0x71)
bData = a_pclPort->kInPortByte(RTC_CMOSDATA);
*pwYear = RTC_BCDTOBINARY(bData) + 2000;
// Set the register storing month
// to CMOS memory address register (port 0x70)
a_pclPort->kOutPortByte(RTC_CMOSADDRESS, RTC_ADDRESS_MONTH);
// Read month from CMOS data register (port 0x71)
bData = a_pclPort->kInPortByte(RTC_CMOSDATA);
*pbMonth = RTC_BCDTOBINARY(bData);
// Set the register storing day
// to CMOS memory address register (port 0x70)
a_pclPort->kOutPortByte(RTC_CMOSADDRESS, RTC_ADDRESS_DAYOFMONTH);
// Read day from CMOS data register (port 0x71)
bData = a_pclPort->kInPortByte(RTC_CMOSDATA);
*pbDayOfMonth = RTC_BCDTOBINARY(bData);
// Set the register storing day of week
// to CMOS memory address register (port 0x70)
a_pclPort->kOutPortByte(RTC_CMOSADDRESS, RTC_ADDRESS_DAYOFWEEK);
// Read week from CMOS data register (port 0x71)
bData = a_pclPort->kInPortByte(RTC_CMOSDATA);
*pbDayOfWeek = RTC_BCDTOBINARY(bData);
return;
}
/// Read the current time from CMOS memory
void kRTC::kReadRTCTime(BYTE* pbHour, BYTE* pbMinute, BYTE* pbSecond)
{
BYTE bData;
// Set the register storing hour
// to CMOS memory address register (port 0x70)
a_pclPort->kOutPortByte(RTC_CMOSADDRESS, RTC_ADDRESS_HOUR);
// Read hour from CMOS data register (port 0x71)
bData = a_pclPort->kInPortByte(RTC_CMOSDATA);
*pbHour = RTC_BCDTOBINARY(bData);
// Set the register storing minute
// to CMOS memory address register (port 0x70)
a_pclPort->kOutPortByte(RTC_CMOSADDRESS, RTC_ADDRESS_MINUTE);
// Read minute from CMOS data register (port 0x71)
bData = a_pclPort->kInPortByte(RTC_CMOSDATA);
*pbMinute = RTC_BCDTOBINARY(bData);
// Set the register storing second
// to CMOS memory address register (port 0x70)
a_pclPort->kOutPortByte(RTC_CMOSADDRESS, RTC_ADDRESS_SECOND);
// Read second from CMOS data register (port 0x71)
bData = a_pclPort->kInPortByte(RTC_CMOSDATA);
*pbSecond = RTC_BCDTOBINARY(bData);
return;
}
void kReadRTCTime( BYTE* pbHour, BYTE* pbMinute, BYTE* pbSecond )
{
BYTE bData;
// CMOS 메모리 어드레스 레지스터(포트 0x70)에 시간을 저장하는 레지스터 지정
kOutPortByte( RTC_CMOSADDRESS, RTC_ADDRESS_HOUR );
// 데이터 레지스터에서 시간 얻어옴
bData = kInPortByte( RTC_CMOSDATA );
*pbHour = RTC_BCDTOBINARY( bData );
kOutPortByte( RTC_CMOSADDRESS, RTC_ADDRESS_MINUTE );
bData = kInPortByte( RTC_CMOSDATA );
*pbMinute = RTC_BCDTOBINARY( bData );
kOutPortByte( RTC_CMOSADDRESS, RTC_ADDRESS_SECOND );
bData = kInPortByte( RTC_CMOSDATA );
*pbSecond = RTC_BCDTOBINARY( bData );
}
void kReadRTCDate( WORD* pwYear, BYTE* pbMonth, BYTE* pbDayOfMonth, BYTE* pbDayOfWeek )
{
BYTE bData;
kOutPortByte( RTC_CMOSADDRESS, RTC_ADDRESS_YEAR );
bData = kInPortByte( RTC_CMOSDATA );
*pwYear = RTC_BCDTOBINARY( bData ) + 2000;
kOutPortByte( RTC_CMOSADDRESS, RTC_ADDRESS_MONTH );
bData = kInPortByte( RTC_CMOSDATA );
*pbMonth = RTC_BCDTOBINARY( bData );
kOutPortByte( RTC_CMOSADDRESS, RTC_ADDRESS_DAYOFMONTH );
bData = kInPortByte( RTC_CMOSDATA );
*pbDayOfMonth = RTC_BCDTOBINARY( bData );
kOutPortByte( RTC_CMOSADDRESS, RTC_ADDRESS_DAYOFWEEK );
bData = kInPortByte( RTC_CMOSDATA );
*pbDayOfWeek = RTC_BCDTOBINARY( bData );
}
