File content as of revision 0:e2f78ce2a5cf:

#include "mbed.h"
#include "FreescaleIAP.h"
 
int flashwrite() {    
    
    int address = flash_size() - SECTOR_SIZE;           //Write in last sector
    int *data = (int*)address;
    
    //By default flash is initialized at 0xFF, this is signed -1, so now we know
    //the program runs for the first time. You of course need to make sure your program
    //never writes -1 to this variable if you use this method
    
    //Alternatively you could also do the same, but with a seperate "initial run" variable added,
    //so your other variables can take any value
    if (data[0] == -1) {
        printf("Initial run\r\n");
        printf("Writing 42 and 42\r\n");
        erase_sector(address);
        int newvalues[2] = {42, 42};
        program_flash(address,(char*) newvalues, 8);     //Two integers of 4 bytes = 8 bytes
        while(1);
    }
    printf("Current = %d and %d, new is %d and %d\r\n", data[0], data[1], data[0]+1, data[1]-1);
    int newvalues[2] = {data[0]+1, data[1]-1};
    erase_sector(address);
    program_flash(address, (char*) newvalues, 8);
    while(1);
}