msp430 Flash Löschen und beschreiben

void Flash_writedown_ADC( void ) 

  {

  USIGN16 *Flash_Segment;

  Flash_Segment = (USIGN16*)0xF000;   /* Flash Segment start address */

  USIGN8 i_wort = 0;

  USIGN8 i_ADC  = 0;

  STOP_WATCHDOG;// Hold Watchdog, it will be switched on by the next SERVE_WATCHDOG.

  FCTL2 = FWKEY | FSSEL_1 | FN0;             /* select MCLK for flash timing */

  FCTL1 = FWKEY + ERASE;          // Set Erase bit

  FCTL3 = FWKEY;                  // Clear Lock bit

  *Flash_Segment = 0;              //Dummy write to erase Flash segment 

  while (! (FCTL3 & WAIT) );  // Wait while not ready

  FCTL1 = FWKEY + BLKWRT + WRT; // Enable block-write operation

    for (USIGN16 i=0; i < 256; i++) 

    {

    Flash_Segment[i] = eADC_ConfigDaten[i_ADC]._Word[i_wort] ;  

    if(++i_wort>=32)

      {

       i_ADC++;

       i_wort=0;

      }

    }

     SERVE_WATCHDOG;

  _NOP();

  RESET_CPU; //RESET!

  }