Exemplo n.º 1
0
/******************************************************************************
* @fn  halButtonPushed
*
* @brief
*      This function detects if 'S1' is being pushed. The function
*      implements software debounce. Return true only if previuosly called
*      with button not pushed. Return true only once each time the button
*      is pressed.
*
* Parameters:
*
* @param  void
*
* @return uint8
*          1: Button is being pushed
*          0: Button is not being pushed
*
******************************************************************************/
uint8 halButtonPushed(void)
{
    extern volatile uint8 led4State;

    uint8        v= HAL_BUTTON_NONE;

    // Need to set direction because the button is shared with LED4
    MCU_IO_INPUT(HAL_BOARD_IO_BTN_1_PORT, HAL_BOARD_IO_BTN_1_PIN, MCU_IO_TRISTATE);

    if (HAL_BUTTON_1_PUSHED()) {
        HAL_DEBOUNCE(!HAL_BUTTON_1_PUSHED());
        v= HAL_BUTTON_1;
    }
    // Restore for use with LED
    MCU_IO_OUTPUT(HAL_BOARD_IO_LED_4_PORT, HAL_BOARD_IO_LED_4_PIN, led4State);

    return v;
}
Exemplo n.º 2
0
/**************************************************************************************************
 * @fn          halAssertHazardLights
 *
 * @brief       Blink LEDs to indicate an error.
 *
 * @param       none
 *
 * @return      none
 **************************************************************************************************
 */
void halAssertHazardLights(void)
{
  enum
  {
    DEBUG_DATA_RSTACK_HIGH_OFS,
    DEBUG_DATA_RSTACK_LOW_OFS,
    DEBUG_DATA_TX_ACTIVE_OFS,
    DEBUG_DATA_RX_ACTIVE_OFS,

#if (defined HAL_MCU_AVR) || (defined HAL_MCU_CC2430)
    DEBUG_DATA_INT_MASK_OFS,
#elif (defined HAL_MCU_CC2530) || (defined HAL_MCU_CC2533)
    DEBUG_DATA_INT_MASK0_OFS,
    DEBUG_DATA_INT_MASK1_OFS,
#endif

    DEBUG_DATA_SIZE
  };

  uint8 buttonHeld;
  uint8 debugData[DEBUG_DATA_SIZE];

  /* disable all interrupts before anything else */
  HAL_DISABLE_INTERRUPTS();

  /*-------------------------------------------------------------------------------
   *  Initialize LEDs and turn them off.
   */
  HAL_BOARD_INIT();

  HAL_TURN_OFF_LED1();
  HAL_TURN_OFF_LED2();
  HAL_TURN_OFF_LED3();
  HAL_TURN_OFF_LED4();

  /*-------------------------------------------------------------------------------
   *  Master infinite loop.
   */
  for (;;)
  {
    buttonHeld = 0;

    /*-------------------------------------------------------------------------------
     *  "Hazard lights" loop.  A held keypress will exit this loop.
     */
    do
    {
      HAL_LED_BLINK_DELAY();

      /* toggle LEDS, the #ifdefs are in case HAL has logically remapped non-existent LEDs */
#if (HAL_NUM_LEDS >= 1)
      HAL_TOGGLE_LED1();
#if (HAL_NUM_LEDS >= 2)
      HAL_TOGGLE_LED2();
#if (HAL_NUM_LEDS >= 3)
      HAL_TOGGLE_LED3();
#if (HAL_NUM_LEDS >= 4)
      HAL_TOGGLE_LED4();
#endif
#endif
#endif
#endif

      /* escape hatch to continue execution, set escape to '1' to continue execution */
      {
        static uint8 escape = 0;
        if (escape)
        {
          escape = 0;
          return;
        }
      }

      /* break out of loop if button is held long enough */
      if (HAL_PUSH_BUTTON1())
      {
        buttonHeld++;
      }
      else
      {
        buttonHeld = 0;
      }
    }
    while (buttonHeld != 10);  /* loop until button is held specified number of loops */

    /*-------------------------------------------------------------------------------
     *  Just exited from "hazard lights" loop.
     */

    /* turn off all LEDs */
    HAL_TURN_OFF_LED1();
    HAL_TURN_OFF_LED2();
    HAL_TURN_OFF_LED3();
    HAL_TURN_OFF_LED4();

    /* wait for button release */
    HAL_DEBOUNCE(!HAL_PUSH_BUTTON1());

    /*-------------------------------------------------------------------------------
     *  Load debug data into memory.
     */
#ifdef HAL_MCU_AVR
    {
      uint8 * pStack;
      pStack = (uint8 *) SP;
      pStack++; /* point to return address on stack */
      debugData[DEBUG_DATA_RSTACK_HIGH_OFS] = *pStack;
      pStack++;
      debugData[DEBUG_DATA_RSTACK_LOW_OFS] = *pStack;
    }
    debugData[DEBUG_DATA_INT_MASK_OFS] = EIMSK;
#endif

#if (defined HAL_MCU_CC2430)
    debugData[DEBUG_DATA_INT_MASK_OFS] = RFIM;
#elif (defined HAL_MCU_CC2530) || (defined HAL_MCU_CC2533)
    debugData[DEBUG_DATA_INT_MASK0_OFS] = RFIRQM0;
    debugData[DEBUG_DATA_INT_MASK1_OFS] = RFIRQM1;
#endif


#if (defined HAL_MCU_AVR) || (defined HAL_MCU_CC2430) || (defined HAL_MCU_CC2530) || \
    (defined HAL_MCU_CC2533) || (defined HAL_MCU_MSP430)
    debugData[DEBUG_DATA_TX_ACTIVE_OFS] = macTxActive;
    debugData[DEBUG_DATA_RX_ACTIVE_OFS] = macRxActive;
#endif

   /* initialize for data dump loop */
    {
      uint8 iBit;
      uint8 iByte;

      iBit  = 0;
      iByte = 0;

      /*-------------------------------------------------------------------------------
       *  Data dump loop.  A button press cycles data bits to an LED.
       */
      while (iByte < DEBUG_DATA_SIZE)
      {
        /* wait for key press */
        while(!HAL_PUSH_BUTTON1());

        /* turn on all LEDs for first bit of byte, turn on three LEDs if not first bit */
        HAL_TURN_ON_LED1();
        HAL_TURN_ON_LED2();
        HAL_TURN_ON_LED3();
        if (iBit == 0)
        {
          HAL_TURN_ON_LED4();
        }
        else
        {
          HAL_TURN_OFF_LED4();
        }

        /* wait for debounced key release */
        HAL_DEBOUNCE(!HAL_PUSH_BUTTON1());

        /* turn off all LEDs */
        HAL_TURN_OFF_LED1();
        HAL_TURN_OFF_LED2();
        HAL_TURN_OFF_LED3();
        HAL_TURN_OFF_LED4();

        /* output value of data bit to LED1 */
        if (debugData[iByte] & (1 << (7 - iBit)))
        {
          HAL_TURN_ON_LED1();
        }
        else
        {
          HAL_TURN_OFF_LED1();
        }

        /* advance to next bit */
        iBit++;
        if (iBit == 8)
        {
          iBit = 0;
          iByte++;
        }
      }
    }

    /*
     *  About to enter "hazard lights" loop again.  Turn off LED1 in case the last bit
     *  displayed happened to be one.  This guarantees all LEDs are off at the start of
     *  the flashing loop which uses a toggle operation to change LED states.
     */
    HAL_TURN_OFF_LED1();
  }
}