CC2538 external interrupt

Hello YiKai Chen ,

Thank you for response .

I am using the GPIOB and here the code.

void HalKeyConfig( bool interruptEnable, halKeyCBack_t cback)
{
#if (HAL_KEY == TRUE)
  /* Enable/Disable Interrupt or */
  Hal_KeyIntEnable = interruptEnable;
 
  /* Register the callback fucntion */
  pHal_KeyProcessFunction = cback;  
 
  /* Determine if interrupt is enable or not */
  if ( Hal_KeyIntEnable )
  {
    
    /* Initialize key handler to use interrupts */
    bspKeyInit(BSP_KEY_MODE_ISR);
    
    /* Map function dirKeyIsr to UP, LEFT, RIGHT and DOWN keys */
    bspKeyIntRegister((BSP_KEY_LEFT|BSP_KEY_RIGHT),
                      &interrupt_keybd);
    
    /* Map function selectKeyIsr to SELECT key */
    bspKeyIntRegister(BSP_KEY_SELECT, &interrupt_keybd);
    
    /* Enable interrupts on all keys */
    bspKeyIntEnable(BSP_KEY_ALL);
    
    IntPrioritySet(INT_GPIOB, HAL_INT_PRIOR_KEY);              
    IntPrioritySet(INT_GPIOD, HAL_INT_PRIOR_KEY);     
    
    /* Cancel polling if there is one active */
    osal_stop_timerEx(Hal_TaskID, HAL_KEY_EVENT);
  }
  else
  {
    bspKeyInit(BSP_KEY_MODE_POLL);
    
    if( cback != NULL)
    {
      /* Start polling if callback function is setup*/
      osal_set_event(Hal_TaskID, HAL_KEY_EVENT);
    }
  }
#endif /* HAL_KEY */
}

#define BSP_KEY_DIR_BASE        GPIO_B_BASE     //!< Base for left/right/up/down
#define BSP_KEY_SEL_BASE        GPIO_D_BASE     //!< Base for Select
#define BSP_KEY_1               GPIO_PIN_4      //!< PC4
#define BSP_KEY_2               GPIO_PIN_5      //!< PC5
//#define BSP_KEY_3               GPIO_PIN_6      //!< PC6
//#define BSP_KEY_4               GPIO_PIN_7      //!< PC7
#define BSP_KEY_5               GPIO_PIN_4      //!< PA3
#define BSP_KEY_ALL             (BSP_KEY_1| \
                                 BSP_KEY_2| \
                                 BSP_KEY_5)     //!< Bitmask of all keys
#define BSP_KEY_LEFT            BSP_KEY_1
#define BSP_KEY_RIGHT           BSP_KEY_2
//#define BSP_KEY_UP              BSP_KEY_3
//#define BSP_KEY_DOWN            BSP_KEY_4
#define BSP_KEY_SELECT          BSP_KEY_5
#define BSP_KEY_DIR_ALL         (BSP_KEY_LEFT|  \
                                 BSP_KEY_RIGHT)  //!< Bitmask of all dir. keys

void interrupt_keybd(void)
{
  /* Clear the Power interrupt registers */
  SysCtrlPowIntClear();
 
#if (HAL_KEY == TRUE)
  /* Read the key before it gone */
  halIntKeys = hal_key_int_keys();
 
  if (halIntKeys && (pHal_KeyProcessFunction))
  {
    (pHal_KeyProcessFunction) (halIntKeys, HAL_KEY_STATE_NORMAL);
  }
#endif /* HAL_KEY */
 
  CLEAR_SLEEP_MODE();
}