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？

可以，按键本身就是中断输入判断

hi,

我在Board_keyCallback;函数中开启了一个SWI定时器：Util_constructClock(&keyReadClock, Board_keyReadHandler,100, 0, false, 0);

static void Board_keyCallback(PIN_Handle hPin, PIN_Id pinId)
{
  keysPressed = 0;

  Util_startClock(&keyReadClock);
  
  if(value == 0x01)
    keysPressed |= KEY_UP;
  if(value == 0x02)
    keysPressed |= KEY_LEFT;
  if(value == 0x03)
    keysPressed |= KEY_DOWN;
  if(value == 0x12)
    keysPressed |= KEY_SELECT;
  if(value == 0x13)
    keysPressed |= KEY_RIGHT;
  if(value == 0x21)
    keysPressed |= KEY_DOWN;  
  if(value == 0x22)
    keysPressed |= KEY_RIGHT;
  if(value == 0x23)
    keysPressed |= KEY_DOWN;

  Util_startClock(&keyChangeClock);
}

之后在Board_keyReadHandler;函数中使用轮询的方式读取矩阵键值：

static void Board_keyReadHandler(UArg a0)
{
  value = keyread();
}

现在问题是，只有第一次能发送健值；而之后都不会进入中断处理函数static void Board_keyCallback(PIN_Handle hPin, PIN_Id pinId)了，

请问是什么原因呢？