RM48L952 EEPROM can't write data

Hi Sir:

I can't write data to EEPROM( Flash at bank7) ,

I write 1 Byte to address:0xf0200000(bank7 sector0)

result : total 60 bytes set to 0x00 , refresh , and then return to 0xff

this program code at below:

void _EEPROM_Program_1Byte(void)
{
Fapi_StatusType oReturnCheck = Fapi_Status_Success;
FwpWriteByteAccessorType * oFwpWriteByteAccessor = FWPWRITE_BYTE_ACCESSOR_ADDRESS;
FwpWriteByteAccessorType * oFwpWriteEccByteAccessor = FWPWRITE_ECC_BYTE_ACCESSOR_ADDRESS;
FwpWriteDWordAccessorType * oFwpWriteDWordAccessor = FWPWRITE_DWORD_ACCESSOR_ADDRESS;

oReturnCheck = Fapi_initializeFlashBanks(220); /* Example code is assuming operating

frequency of 220 MHz */    /* The return value= 0x08 of this function call ,so no check oReturnCheck

temporarily at below */

// if((oReturnCheck == Fapi_Status_Success) &&

// (FLASH_CONTROL_REGISTER->FmStat.FMSTAT_BITS.BUSY != Fapi_Status_FsmBusy))

   if((FLASH_CONTROL_REGISTER->FmStat.FMSTAT_BITS.BUSY != Fapi_Status_FsmBusy))
  {
   oReturnCheck = Fapi_setActiveFlashBank(Fapi_FlashBank7);

   oReturnCheck = Fapi_enableEepromBankSectors(0x002,0x0); /*erase sector , 0x1 :settor 0 , 0x2:sector1 ,      ox4:sector2 , 0x8:sector3*/

   FLASH_CONTROL_REGISTER->Fbprot.u32Register = 1U; /* Disable Level 1 Protection */
/* Enable all sectors of current bank for erase and program. For EEPROM banks with more
than 16 sectors, this must be 0xFFFF */
   FLASH_CONTROL_REGISTER->Fbse.u32Register = 0xFFFF;
   FLASH_CONTROL_REGISTER->Fbprot.u32Register = 0U; /* Enable Level 1 Protection */
/*Unlock FSM registers for writing */
   FLASH_CONTROL_REGISTER->FsmWrEna.u32Register = 0x5U;
/* Set command to "Clear the Status Register" */
   FLASH_CONTROL_REGISTER->FsmCommand.FSM_COMMAND_BITS.FSMCMD = Fapi_ClearStatus;

/* Execute the Clear Status command */

   FLASH_CONTROL_REGISTER->FsmExecute.FSM_EXECUTE_BITS.FSMEXECUTE = 0x15U;
/* Write address to FADDR register */
   FLASH_CONTROL_REGISTER->Faddr.u32Register = 0xf0200000U;  //bank7 sector0

   oFwpWriteByteAccessor[2] = 0xA5;

/* Set command to "Program" */
   FLASH_CONTROL_REGISTER->FsmCommand.FSM_COMMAND_BITS.FSMCMD = Fapi_ProgramData;
/* Execute the Program command */
   FLASH_CONTROL_REGISTER->FsmExecute.FSM_EXECUTE_BITS.FSMEXECUTE = 0x15U;
/* re-lock FSM registers to prevent writing */
   FLASH_CONTROL_REGISTER->FsmWrEna.u32Register = 0x2U;

////
/* Wait for FSM to finish */
   while(FLASH_CONTROL_REGISTER->FmStat.FMSTAT_BITS.BUSY == Fapi_Status_FsmBusy);
/* Check the FSM Status to see if there were no errors */
     if (FLASH_CONTROL_REGISTER->FmStat.u32Register != 0)
     {
       /* Put Error handling code here */

     }
   }


}