Diff: DS1307.cpp

Revision:

0:b2064b3558b6

Child:

1:ba7154d2d7ca

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DS1307.cpp	Sat Dec 05 10:02:26 2015 +0000
@@ -0,0 +1,46 @@
+#include "mbed.h"
+#include "DS1307.h"
+
+DS1307::DS1307(PinName sda,PinName scl):rtc(sda,scl){}
+void DS1307::settime(int sec,int min,int hour,int day,int date,int month,int year)
+{
+    char data[7][2] = { {0x00, dectobcd(sec)},
+                        {0x01, dectobcd(min)},
+                        {0x02, dectobcd(hour)},
+                        {0x03, dectobcd(day)},
+                        {0x04, dectobcd(date)},
+                        {0x05, dectobcd(month)},
+                        {0x06, dectobcd(year)}  };
+    int i;
+    for(i=0;i<7;i++)
+        {
+            rtc.write(DS1307_ADDRESS, data[i], 2);
+        }
+}
+void DS1307::gettime(int *sec,int *min,int *hour,int *day,int *date,int *month,int *year)
+{
+    char j = 0;
+    char data[7];
+    int i;
+    for(i=0;i<7;i++)
+        {
+            rtc.write(DS1307_ADDRESS, &j, 1);
+            rtc.read(DS1307_ADDRESS, &data[i], 1);
+            j++;
+        }
+     *sec=bcdtodec(data[0]);
+     *min=bcdtodec(data[1]);
+     *hour=bcdtodec(data[2]);
+     *day=bcdtodec(data[3]);
+     *date=bcdtodec(data[4]);
+     *month=bcdtodec(data[5]);
+     *year=bcdtodec(data[6]);
+}
+int DS1307::bcdtodec(int num) 
+{    
+    return 10*(num/16) + num % 16; 
+}
+int DS1307::dectobcd(int num) 
+{
+    return 16*(num/10) + num % 10; 
+}
\ No newline at end of file