Marcel Reath / RTC8563

Dependents:   rtc_class

Files at this revision

API Documentation at this revision

Revision 0:f11a8d59f4c8, committed 2015-04-22

Comitter:
MarcelReath
Date:
Wed Apr 22 18:09:53 2015 +0000
Commit message:
Marcel Reath

Changed in this revision

RTC8563.cpp Show annotated file Show diff for this revision Revisions of this file
RTC8563.h Show annotated file Show diff for this revision Revisions of this file
const.h Show annotated file Show diff for this revision Revisions of this file 
diff -r 000000000000 -r f11a8d59f4c8 RTC8563.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RTC8563.cpp	Wed Apr 22 18:09:53 2015 +0000
@@ -0,0 +1,55 @@
+//
+//  @ Project : RTC Date Time Clock
+//  @ File Name : RTC8563.cpp
+//  @ Date : 06.04.2015
+//  @ Author : Franz Pucher
+//  @ Copyright : pe@bulme.at
+//
+ 
+#include "mbed.h"
+#include "const.h"
+ 
+#include "RTC8563.h"
+ 
+RTC8563::RTC8563() : i2c(p28, p27)  // delete void and add call to base constructor 
+{
+    // Initialise I2C
+    i2c.frequency(40000);              
+    char init1[2] = {0x6, 0x00};
+    char init2[2] = {0x7, 0xff};
+    i2c.write(0x40, init1, 2);
+    i2c.write(0x40, init2, 2);
+}
+ 
+RTC8563::RTC8563(PinName sda, PinName scl) : i2c(sda, scl) 
+{
+   // Initialise I2C
+    i2c.frequency(40000);              
+    char init1[2] = {0x6, 0x00};
+    char init2[2] = {0x7, 0xff};
+    i2c.write(0x40, init1, 2);
+    i2c.write(0x40, init2, 2);
+}
+ 
+char RTC8563::rtc_read(char address)
+{
+    char value;
+    i2c.start();
+    i2c.write(RTC8563_ADR);
+    i2c.write(address);
+    i2c.start();
+    i2c.write(RTC8563_ADR | _READ);
+    value = i2c.read(0);
+    i2c.stop();
+ 
+    return value;
+}
+ 
+void RTC8563::rtc_write(char address, char value)
+{
+    i2c.start();
+    i2c.write(RTC8563_ADR);
+    i2c.write(address);
+    i2c.write(value);
+    i2c.stop();
+}

diff -r 000000000000 -r f11a8d59f4c8 RTC8563.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RTC8563.h	Wed Apr 22 18:09:53 2015 +0000
@@ -0,0 +1,27 @@
+//
+//  @ Project : RTC8563
+//  @ File Name : RTC8563.h
+//  @ Date : 06.04.2015
+//  @ Author : Franz Pucher
+//  @ Copyright : pe@bulme.at
+//
+#include "mbed.h"
+#include "const.h"
+ 
+#if !defined(_RTC8563_H)
+#define _RTC8563_H
+ 
+class RTC8563
+{
+public:
+    RTC8563();          // delete void
+    RTC8563(PinName sda, PinName scl);
+    char rtc_read(char address);
+    void rtc_write(char address, char value);
+    void rtc_init();
+    void rtc_alarm();
+protected:
+    I2C i2c;
+};
+ 
+#endif  //_RTC8563_H
\ No newline at end of file

diff -r 000000000000 -r f11a8d59f4c8 const.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/const.h	Wed Apr 22 18:09:53 2015 +0000
@@ -0,0 +1,36 @@
+/***********************************
+name:   const.h    Version: 0.1
+author: PE HTL BULME
+email:  pe@bulme.at
+description:
+  Named constants definitions for registers 
+  PCF8563 RTC on HIMBED M0 - LPC11U24 
+***********************************/
+ 
+#ifndef CONST_H
+#define CONST_H
+ 
+// Address of RTC
+const int RTC8563_ADR = 0xA2;
+// Control and status
+const int CONTROL1 = 0x00;
+const int CONTROL2 = 0x01;
+// Time and date
+const int SECONDS = 0x02;   
+const int MINUTES = 0x03;
+const int HOURS = 0x04;
+const int DAYS = 0x05;
+const int WEEKDAYS = 0x06;
+const int MONTHS = 0x07;
+const int YEARS = 0x08;
+// Alarm
+const int MINUTE_ALARM = 0x09;
+const int HOUR_ALARM = 0x0A;
+const int DAY_ALARM = 0x0B;
+const int WEEKDAY_ALARM = 0x0C;
+// Clock and timer
+const int CLOCKOUT_FREQ = 0x0D;
+const int TIMER_CINTROL = 0x0E;
+const int _READ = 0x01;
+ 
+#endif
\ No newline at end of file