/* This function handles External lines 9 to 5 interrupt request.  */
void EXTI9_5_IRQHandler(void)
/* This function handles External lines 9 to 5 interrupt request.  */
void EXTI9_5_IRQHandler(void)
{
  if(EXTI_GetITStatus(KEY_BUTTON_EXTI_LINE) != RESET)
  {  
    EXTI_ClearITPendingBit(KEY_BUTTON_EXTI_LINE);
    STM_EVAL_LEDToggle(LED2);
  }
}