Ernesto Palacios / Adafruit_RTCLib

Adafruit_RTCLib

Fork of Adafruit_RTCLib by Neal Horman

Diff: DS1307.cpp

Revision:
1:2c4e81ecda67
Parent:
0:7f90c8e04249
--- a/DS1307.cpp	Tue Jul 17 05:49:20 2012 +0000
+++ b/DS1307.cpp	Wed Jul 18 01:28:21 2012 +0000
@@ -4,6 +4,8 @@
 /*
  * Taken from https://github.com/adafruit/RTClib
  * and modified for LPC1768 by Neal Horman July 2012
+ * Also add support for access to the 56 bytes of
+ * user accessible battery backed ram.
  */
 
 #include "mbed.h"
@@ -19,6 +21,7 @@
 
 RtcDs1307::RtcDs1307(I2C &i2c) : mI2c(i2c)
 {
+    // Read the RTC ram into the object RAM image
     mRam[0]=8;
     if(mI2c.write(DS1307_ADDRESS,(const char *)&mRam[0],1,true) == 0)
         mI2c.read(DS1307_ADDRESS,(char *)&mRam[1],sizeof(mRam)-1);