File content as of revision 0:a1b3b73a7312:

// show how the DS1307 class works
 #include "ds1307.h"
 #include "mbed.h"
 #include "TextLCD.h"
 
 DS1307 my1307(p9,p10); // start DS1307 class and give it pins for connections of the DS1307 device
 TextLCD lcd(p21,p22,p23,p24,p25,p26);
 
 int sec;
 int min;
 int hours;
 int day;
 int date;
 int month;
 int year;
 
 void test_rw(int test) {
} 
 
 int main() {
     int junk = 0;
 
while(1){
     wait(0.5);

     test_rw(my1307.gettime( &sec, &min, &hours, &day, &date, &month, &year));

    lcd.cls();
    lcd.locate(0,0);
    lcd.printf("%d:%d:%d",hours,min,sec);
    lcd.locate(0,1);
    lcd.printf("%d/%d/%d",date,month,year);
 
     junk = 0x39;                            // just a junk value do read and write test to DS1307 ram
     test_rw(my1307.write( 0x20, junk));     // this should write the value of junk to register 0x20 (a ram location) in the ds1307.
     junk = 0;                               // clear junk to show that when the register is read from the correct value is obtained
     test_rw(my1307.read( 0x20, &junk));     // this should read register 0x20
 }
 }