Fork of RTC-DS1307 by
Diff: Rtc_Ds1307.cpp
- Revision:
- 9:5627b407e097
- Parent:
- 8:d0e66fa78e79
- Child:
- 10:73081912baf2
--- a/Rtc_Ds1307.cpp Sun Jun 23 19:24:57 2013 +0000 +++ b/Rtc_Ds1307.cpp Wed Jun 26 21:05:46 2013 +0000 @@ -2,7 +2,7 @@ #include "Rtc_Ds1307.h" #ifndef DEBUG -#define DEBUG +//#define DEBUG #endif #include "debug.h" @@ -205,17 +205,19 @@ RtcCls::RtcCls(PinName sda, PinName scl, PinName sqw, bool bUseSqw) : Rtc_Ds1307(sda, scl), m_sqw(sqw), m_bUseSqw(bUseSqw), m_bAlarmEnabled(false), m_alarmfunc(NULL) { + Time_rtc t; + // query time from device + getTime(t); + // sync the time with MBED RTC + struct tm now = {t.sec, t.min, t.hour, t.date, t.mon-1, t.year-1900}; + m_time = mktime(&now); + set_time(m_time); + // Only register the callback and start the SQW if requested to do so. Otherwise the system // will use the MBED built-in RTC. if (m_bUseSqw) { - Time_rtc t; // start the wave setSquareWaveOutput(true, RS1Hz); - // query time - getTime(t); - struct tm now = {t.sec, t.min, t.hour, t.date, t.mon-1, t.year-1900}; - m_time = mktime(&now); - set_time(m_time); // register callback from now on the time will be maintained by the square wave input m_sqw.rise(this, &RtcCls::_callback); }