Justin Howard / RTclock

Simple RTC class based on DS1307. Emphasis on simple. Allows you to run at 100k or 400k Hz (for newer DS1307 capable devices). MapTime() allows you to set the time() service to the same as the RTC. Uses struct tm throughout so you can use traditional time functions for manipulation.

Dependents:   AdaFruit_RGBLCD

Diff: RTclock.cpp

Revision:
10:e5eabd3a1ca6
Parent:
9:3a0ba8364ef2
Child:
11:49b987f6ae26
--- a/RTclock.cpp	Sat Aug 30 15:55:28 2014 +0000
+++ b/RTclock.cpp	Tue Sep 02 07:12:09 2014 +0000
@@ -1,13 +1,11 @@
 #include "mbed.h"
 #include "RTclock.h"
 
-RTclock::RTclock(PinName in_nSDA, PinName in_nSCL, EClockType in_eClockType, bool in_bHiSpeed)
-    : RTclock_parent(in_nSDA,in_nSCL)
-    , m_bTwelveHour(false)
+RTclock::RTclock(I2C & in_cI2C, EClockType in_eClockType)
+    : m_bTwelveHour(false)
+    , m_cI2C(in_cI2C)
     , m_eClockType(in_eClockType)
 {        
-    // Frequency depends on chip - most are 100KHz
-    frequency(in_bHiSpeed ? 400000 : 100000);
 }
 
 RTclock::~RTclock()
@@ -78,8 +76,8 @@
 {
     char aBuffer[2] = { (char)in_nAddress, 0 };
     
-    if (0 != RTclock_parent::write(0xd0, aBuffer, 1)) return false;
-    if (0 != RTclock_parent::read(0xd0, out_pBuffer, in_nLength)) return false;
+    if (0 != m_cI2C.write(0xd0, aBuffer, 1)) return false;
+    if (0 != m_cI2C.read(0xd0, out_pBuffer, in_nLength)) return false;
     
     return true;
 }
@@ -200,5 +198,5 @@
     for (size_t i = 0 ; i < in_nLength; i++)
         aBuffer[i + 1] = in_pBuffer[i];
 
-    return RTclock_parent::write(0xd0, aBuffer, in_nLength + 1);
+    return m_cI2C.write(0xd0, aBuffer, in_nLength + 1);
 }