Read from Flash SPI2

Hi,

unsigned long LDR[] = {#include "test.ldr"};

I write successfully the 0xAD28 into flash as follow:

void Write_flash(unsigned char Block_ID, unsigned long* flash_page_data_buff, unsigned long long data_count)
{
if(Block_ID > FLASH_BLOCK_COUNT-1) {
printf("\nERROR: Invalid Flash Block ID\n");
while(1) asm("nop;"); }

printf("\n\n============================================================\n");
printf("\nPogramming the Flash from Block %d:\n", Block_ID);

unsigned long PRGM_ADDR = Block_ID * FLASH_BLOCK_SIZE;
while(data_count >= FLASH_PAGE_SIZE)
{
Write_flash_page(PRGM_ADDR, flash_page_data_buff, FLASH_PAGE_SIZE);
data_count -= FLASH_PAGE_SIZE;
flash_page_data_buff += FLASH_PAGE_SIZE;
PRGM_ADDR += FLASH_PAGE_SIZE;
}

if(data_count != 0x00)
{
Write_flash_page(PRGM_ADDR, flash_page_data_buff, data_count);
flash_page_data_buff += data_count;
PRGM_ADDR += data_count;
}
printf("Flash Programming Completed\n ");
printf("\n============================================================\n\n");
}

but when I want to read from flash, I get only 0xFF, as follow:

void Compare_flash(unsigned char Block_ID, unsigned long* flash_page_data_buff, unsigned long long data_count)
{
unsigned char temp_rd_byte, result = 1;
unsigned long long RD_count;

if(Block_ID > FLASH_BLOCK_COUNT-1) {
printf("\nERROR: Invalid Flash Block ID\n");
while(1) asm("nop;"); }

unsigned int READ_ADDR = Block_ID * FLASH_BLOCK_SIZE;
printf("\n\n============================================================\n");
printf("\nVerifying the Flash contents from Block %d:\n", Block_ID);

Select_Slave(); // Select Flash
flash_byte_access(FLASH_RD_DAT); // send sector erase command (0x64KB)
flash_byte_access(READ_ADDR >> 16); // send block address
flash_byte_access(READ_ADDR >> 8);
flash_byte_access(READ_ADDR);

for(RD_count=0; RD_count<data_count; RD_count++)
{
// *flash_page_data_buff++ = (flash_byte_access(DUMMY_BYTE));
temp_rd_byte = (flash_byte_access(DUMMY_BYTE));
if(temp_rd_byte != *flash_page_data_buff++)
{
result = 0;
break;
}
}
Deselect_Slave(); // deselct_flash;

if(result)
printf("\nSUCCESS: DATA written and verified to flash\n");
else
printf("\nERROR: DATA writing or verification unsuccessful\n");
printf("\n============================================================\n\n");
}

Any idea?