File content as of revision 0:c368b419bdf1:

// show how the DS1307 class works
 #include "ds1307.h"
 #include "mbed.h"
 
 //Serial pc(USBTX, USBRX); // tx, rx  for debug and usb pc comunications
 
 DS1307 my1307(A4,A5); // start DS1307 class and give it pins for connections of the DS1307 device
 
 int sec = 0;
 int min = 0;
 int hours = 0;
 int day = 0;
 int date = 0;
 int month = 0;
 int year = 0;
 
 void test_rw(int test) {
     if (test == 0) printf("Last R/W operaion passed!\n\r");
     else printf("Last R/W operation failed!\n\r");
 }
 
 int main() {
     while(1){
     int junk = 0;
 
     sec = 24;       // 24 seconds
     min = 13;       // 13 min
     hours = 13;     // 1 pm
     day = 4;        // wednesday
     date = 20;      // June 20
     month = 6;
     year = 12;      // 2012
                     // set time to these values on the ds1307 connected device
 
     test_rw(my1307.settime( sec, min, hours, day, date, month, year));
     printf("seconds set are %.2d \n\r",sec);
     printf("min set are %.2d \n\r",min);
     printf("hour set are %.2d \n\r",hours);
     printf("day set are %.2d \n\r",day);
     printf("date set are %.2d \n\r",date);
     printf("month set are %.2d \n\r",month);
     printf("year set are %.2d \n\r",year);
     wait(3);
                     // now read the time of the DS1307 device and see what time it is
                     // note that because of the 3 second wait this time should be 3 seconds past what it was set to earlier
 
     test_rw(my1307.gettime( &sec, &min, &hours, &day, &date, &month, &year));
     printf("seconds read are %.2d \n\r",sec);
     printf("min read are %.2d \n\r",min);
     printf("hour read are %.2d \n\r",hours);
     printf("day read are %.2d \n\r",day);
     printf("date read are %.2d \n\r",date);
     printf("month read are %.2d \n\r",month);
     printf("year read are %.2d \n\r",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.
     printf("Value written to register 0x20 %.2x \n\r",junk);
     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
     printf("Value read from register 0x20 %.2x \n\r",junk);
 }
 }