CC2640中，矩阵键盘问题

使用2640的片子，

首先我开启了矩阵键盘读回行相应IO口的中断：

  PIN_setConfig(hKeyPins, PIN_BM_IRQ, Board_KEY_ROW0  | PIN_IRQ_BOTHEDGES);
  PIN_setConfig(hKeyPins, PIN_BM_IRQ, Board_KEY_ROW1  | PIN_IRQ_BOTHEDGES);
  PIN_setConfig(hKeyPins, PIN_BM_IRQ, Board_KEY_ROW2  | PIN_IRQ_BOTHEDGES);
  PIN_setConfig(hKeyPins, PIN_BM_IRQ, Board_KEY_ROW3  | PIN_IRQ_BOTHEDGES);

然后，在Board_key.c中的中断处理函数：Board_keyCallback中添加获取健值的代码，使用单列拉高的方式，

COL0  
  {
    PIN_setOutputValue(hKeyPins, Board_KEY_COL1, 1);
    PIN_setOutputValue(hKeyPins, Board_KEY_COL2, 1);
    PIN_setOutputValue(hKeyPins, Board_KEY_COL0, 0);          //拉低0列;
    PAW_Delay_ms(25);
    if(PIN_getInputValue(Board_KEY_ROW1) == 0)
    {
       keysPressed |= KEY_UP;
    }
    if(PIN_getInputValue(Board_KEY_ROW2) == 0)
    {
      keysPressed |= KEY_LEFT;
    }
    if(PIN_getInputValue(Board_KEY_ROW3) == 0)
    {
      keysPressed |= KEY_DOWN;
    }
  }
//COL1  
  {
    PIN_setOutputValue(hKeyPins, Board_KEY_COL0, 1);
    PIN_setOutputValue(hKeyPins, Board_KEY_COL2, 1);
    PIN_setOutputValue(hKeyPins, Board_KEY_COL1, 0);       //拉低0列;
    PAW_Delay_ms(25);
    if(PIN_getInputValue(Board_KEY_ROW2) == 0)
    {
      keysPressed |= KEY_SELECT;
    }
    if(PIN_getInputValue(Board_KEY_ROW3) == 0)
    {
      keysPressed |= KEY_RIGHT;
    }
  }
//COL2  
  {
    PIN_setOutputValue(hKeyPins, Board_KEY_COL0, 1);
    PIN_setOutputValue(hKeyPins, Board_KEY_COL1, 1);
    PIN_setOutputValue(hKeyPins, Board_KEY_COL2, 0); 
    PAW_Delay_ms(25);
    if(PIN_getInputValue(Board_KEY_ROW1) == 0)
    {
      keysPressed |= KEY_MUTE;
    }
    if(PIN_getInputValue(Board_KEY_ROW2) == 0)
    {
      keysPressed |= KEY_VOLUME_UP;
    }
    if(PIN_getInputValue(Board_KEY_ROW3) == 0)
    {
      keysPressed |= KEY_VOLUME_DOWN;
    }

但是 并没有成功。

请问2640的按键中断处理函数中是否能添加引脚处理？