RTC on DS1307 - converting values - SOLVED

Forum 2005-2010 (read only) General Frequently-Asked Questions
#1

Hi,

I have RTC built on DS1307.

This is how I read the data:

void getClock() 
{ 
  Wire.beginTransmission(DS1307); 
  Wire.send(R_SECS); 
  Wire.endTransmission(); 
  Wire.requestFrom(DS1307, 8); 
  second = Wire.receive(); 
  minute = Wire.receive(); 
  hour   = Wire.receive(); 
  wkDay  = Wire.receive(); 
  day    = Wire.receive(); 
  month  = Wire.receive(); 
  year   = Wire.receive(); 
  ctrl   = Wire.receive(); 
}

I would like to get month, second, hour etc. as a decimal value.
How can I convert the data I get to decimal?

I’ve found the solution:

byte DS1305::decToBcd(const int dec) {
      return ((dec / 10 * 16) + (dec % 10));
}

int DS1305::bcdToDec(const byte bcd) {
      return ((bcd / 16 * 10) + (bcd % 16));
}
#2