DS1307.h

00001 // Code by JeeLabs http://news.jeelabs.org/code/
00002 // Released to the public domain! Enjoy!
00003 
00004 /*
00005  * Taken from https://github.com/adafruit/RTClib
00006  * and modified for LPC1768 by Neal Horman July 2012
00007  * Also add support for access to the 56 bytes of
00008  * user accessible battery backed ram.
00009  */
00010 
00011 #ifndef _DS1307_H_
00012 #define _DS1307_H_
00013 
00014 #include "mbed.h"
00015 #include "DateTime.h"
00016 
00017 // RTC based on the DS1307 chip connected via I2C
00018 class RtcDs1307
00019 {
00020 public:
00021     RtcDs1307(I2C &i2c);
00022     bool adjust(const DateTime& dt);
00023     bool isRunning();
00024     DateTime now();
00025     bool commit();
00026     uint8_t &operator[](uint8_t i) { return mRam[(i<sizeof(mRam)-1 ? i+1 : 0)]; };
00027 protected:
00028     I2C &mI2c;
00029     uint8_t mRam[1+56]; // device register address + 56 bytes
00030 };
00031 
00032 #endif