Not Able to erase Sector 0 when using IAP in LPC2214

Thanks Peter....... My Apology for not putting the

Code in proper format ......

I want to implement the functionality of IAP in LPC2214.... for testing purpose I have taken the sample code from keil..... C:\Keil\ARM\Flash\LPC_IAP_256...In this code I have tried to erase all the sector & write data . I am able to erase all the sectors & write the data successfully.......except sector 0 ? as I try to erase sector 0 and write some data on it ......... it erases all the sectors and not data has been written ? The sample code form keil is ......
As You can see in the main function, we have disable the Interrupt function .........

/* IAP Download Function */

#include "FlashOS.H" // FlashOS Structures

#define M8(adr) (*((volatile unsigned char *) (adr)))

void IAP_download(void);

volatile int ret; // Return Code
unsigned char TempBuf[1024] = " CMS CMS CMS ";
static unsigned char TempBuf2[1024];
unsigned int Cnt;

void IAP_download (void ) { unsigned long n; unsigned short Cnt; ret = Init(0, 48000000, 1); //ret |= EraseChip();

ret |= EraseSector(0x00000000);

ret |= EraseSector(0x00002000);

ret |= EraseSector(0x00004000);

ret |= EraseSector(0x00006000);

ret |= EraseSector(0x00008000);

ret |= EraseSector(0x0000A000);

ret |= EraseSector(0x0000C000);

ret |= EraseSector(0x0000E000);

ret |= EraseSector(0x00010000);

ret |= EraseSector(0x00020000);

ret |= EraseSector(0x00030000);

ret |= EraseSector(0x00032000);

ret |= EraseSector(0x00034000);

ret |= EraseSector(0x00036000);

ret |= EraseSector(0x00038000);

ret |= EraseSector(0x0003A000);

ret |= EraseSector(0x0003C000);

/* Fill the buffer for writeing in Flash Sector */

for (n = 0; n < 1024; n++)

{

buf[n] = ( unsigned char )n;

}

/* Fill the buffer for writeing in Flash Sector */

for (Cnt = 0; Cnt <1024; Cnt++)

{

TempBuf2[Cnt] = '*';

}

ret |= ProgramPage(0x00000000 ,1024, (unsigned char *)TempBuf2 );

ret |= ProgramPage(0x00002000 ,1024, (unsigned char *)TempBuf2 );

ret |= ProgramPage(0x00004000 ,1024, (unsigned char *)TempBuf2 );

ret |= ProgramPage(0x00006000 ,1024, (unsigned char *)TempBuf );

ret |= ProgramPage(0x00008000 ,1024, (unsigned char *)TempBuf2 );

ret |= ProgramPage(0x0000A000 ,1024, (unsigned char *)TempBuf );

ret |= ProgramPage(0x0000C000 ,1024, (unsigned char *)TempBuf2 );

ret |= ProgramPage(0x0000E000 ,1024, (unsigned char *)TempBuf );

ret |= ProgramPage(0x00010000 ,1024, (unsigned char *)TempBuf2 );

ret |= ProgramPage(0x00020000 ,1024, (unsigned char *)TempBuf );

ret |= ProgramPage(0x00030000 ,1024, (unsigned char *)TempBuf2 );

ret |= ProgramPage(0x00032000 ,1024, (unsigned char *)TempBuf );

ret |= ProgramPage(0x00034000 ,1024, (unsigned char *)TempBuf2 );

ret |= ProgramPage(0x00036000 ,1024, (unsigned char *)TempBuf );

ret |= ProgramPage(0x00038000 ,1024, (unsigned char *)TempBuf2 );

ret |= ProgramPage(0x0003A000 ,1024, (unsigned char *)TempBuf );

ret |= ProgramPage(0x0003C000 ,1024, (unsigned char *)TempBuf2 );

while (1); // Wait forever
}

/* Main Function */

#include <lpc21xx.h>
#include <stdio.h>
#include "FlashOS.H"

#define M8(adr) (*((volatile unsigned char *) (adr)))

extern void IAP_download(void);

int main(void)

{

IODIR0 = 0xFFFFFFFF;

IODIR1 = 0xFFFFFFFF;

//#pragma arm

VICIntEnClr = 0xFFFFFFFF; // Disable all interrupt IAP_download( );

// #pragma thumb

while (1);
}

/* FlashDev.c Function */

#include "FlashOS.H" // FlashOS Structures

struct FlashDevice const FlashDevice =

{

FLASH_DRV_VERS, // Driver Version, do not modify!

"LPC2000 IAP 256kB Flash", // Device Name

ONCHIP, // Device Type

0x00000000, // Device Start Address

0x0003E000, // Device Size without Boot Loader

// (248kB)

1024, // Programming Page Size

0, // Reserved, must be 0

0xFF, // Initial Content of Erased Memory

100, // Program Page Timeout 100 mSec

3000, // Erase Sector Timeout 3000 mSec

// Specify Size and Address of Sectors

0x002000, 0x000000, // Sector Size 8kB (8 Sectors)

0x010000, 0x010000, // Sector Size 64kB (2 Sectors)

0x002000, 0x030000, // Sector Size 8kB (7 Sectors)

SECTOR_END
};