/* Unlocks the FLASH control register and program memory access.  */
void FLASH_Unlock(void)
/* Unlocks the FLASH control register and program memory access.  */
void FLASH_Unlock(void)
{
  if((FLASH->CR & FLASH_CR_LOCK) != RESET)
  {
    FLASH->KEYR = FLASH_FKEY1;
    FLASH->KEYR = FLASH_FKEY2;
  }
}