File content as of revision 0:57ed1971604d:

#define     TEST_ON_MBED

#ifdef      TEST_ON_MBED
#include    "mbed.h"
#else
#include    <lpc17xx.h>
#include    <absacc.h>
#endif

void            IAP_Write(void);

#ifdef      TEST_ON_MBED
unsigned char   *a;
unsigned char   ram_buffer[ 5 + 3 ];
#else
unsigned char   a[5] at(0x10000400);
#endif

unsigned int    command[ 5 ];
unsigned int    result[ 5 ];
typedef void    (*IAP)( unsigned int [], unsigned int[] );

IAP iap_entry   = (IAP)0x1FFF1FF1;

#define         FLASH_TARGET_ADDR   ((char *)0x00008100)

int main(void)
{
    unsigned char   i = 0;

    a   = (unsigned char *)((unsigned long)ram_buffer & ~0x3);

    for( i = 0; i < 5; i++ )
        a[ i ]  = i;

    for( i = 0; i < 5; i++ )
        printf( "RAM : *((char *)0x%08X) == 0x%02X\r\n", (unsigned long)a + i, *(a + i) );

    IAP_Write();

    char    *cp = FLASH_TARGET_ADDR;

    for( i = 0; i < 5; i++, cp++ )
        printf( "RAM : *((char *)0x%08X) == 0x%02X\r\n", (unsigned long)cp, *cp );
}

void IAP_Write(void)
{
    command[0]  = 50;          //  "prepare" cmmand
    command[1]  =  8;           //  Start sector number is 8
    command[2]  =  8;           //  Finish sector number is 8
    iap_entry( command, result );

    printf( "error code for \"prepare\" = %d\r\n", result[ 0 ] );


    command[0]  = 51;                               //  "copy from ram to flash" command
    command[1]  = (unsigned int)FLASH_TARGET_ADDR;  //  Addrees of Flash 
    command[2]  = (unsigned int)a;                  //  Addrees of Sram 
    command[3]  = 256;                              //  How many bytes want to transfer
    command[4]  = 96000;                            //  Frequency in khz
    iap_entry( command, result );

    printf( "error code for \"copy from ram to flash\" = %d\r\n", result[ 0 ] );
}