Diff: ds1307.h

Revision:

0:9570e313fcba

diff -r 000000000000 -r 9570e313fcba ds1307.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ds1307.h	Sat Dec 12 07:35:54 2015 +0000
@@ -0,0 +1,44 @@
+#ifndef DS1307_H
+#define DS1307_H
+#include "mbed.h"
+ 
+#define DS1307_addr 0xD0    // this is fixed by Dallas
+#define DS1307_freq 100000  // this is the Dallas spec for operating i2c for this device
+#define DS1307_sec 0x00     // seconds
+#define DS1307_min  0x01    // min
+#define DS1307_hour 0x02    // hours
+#define DS1307_day  0x03    // day
+#define DS1307_date 0x04    // date
+#define DS1307_month 0x05   // month
+#define DS1307_year 0x06    // year
+#define DS1307_sqrout 0x07  // square output register
+#define DS1307_ramstart 0x08    // register address that ram starts at
+#define DS1307_lastreg 0x3F // this is the last register in the device (note also this register is used to address everything so it gets clobbered)
+#define DS1307_lastram 0x3E // last usable ram by this class as the lastreg is clobbered by code for normal operation
+ class DS1307 {
+public:
+DS1307( PinName sda, PinName slc) ;                 // constructor
+ 
+    ~DS1307();                                          // destructor
+  int read( int addr, int quantity, char *data);      // to read some of the 63 bytes from DS1307
+ int read(int addr, int *data);
+ int write( int addr, int quantity, char *data); 
+ int write( int addr, int data );                    // to write one byte only
+ int start_clock(void);    
+  int stop_clock(void);                               // stop clock
+ int twelve_hour(void);    
+ int twentyfour_hour(void);   
+ int settime(int sec, int min, int hour, int day, int date, int month, int year); 
+ int gettime(int *sec, int *min, int *hour, int *day, int *date, int *month, int *year);  // to get the current time information
+ 
+ 
+protected:
+    I2C ds1307i2c;
+    int dectobcd( int );
+    int bcdtodec( int );
+    int hilow_check( int, int, int);
+ 
+};
+ 
+#endif
+            
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