C++ (Cpp) HAL_UART_ISR_RX_AVAIL示例

示例#1

文件： _hal_uart_isr.c 项目： fominok/znp

/******************************************************************************
 * @fn      HalUARTPollISR
 *
 * @brief   Poll a USART module implemented by ISR.
 *
 * @param   none
 *
 * @return  none
 *****************************************************************************/
static void HalUARTPollISR(void)
{
  if (isrCfg.uartCB != NULL)
  {
    uint16 cnt = HAL_UART_ISR_RX_AVAIL();
    uint8 evt = 0;

    if (isrCfg.rxTick)
    {
      // Use the LSB of the sleep timer (ST0 must be read first anyway).
      uint8 decr = ST0 - isrCfg.rxShdw;

      if (isrCfg.rxTick > decr)
      {
        isrCfg.rxTick -= decr;
      }
      else
      {
        isrCfg.rxTick = 0;
      }
    }
    isrCfg.rxShdw = ST0;

    if (cnt >= HAL_UART_ISR_RX_MAX-1)
    {
      evt = HAL_UART_RX_FULL;
    }
    else if (cnt >= HAL_UART_ISR_HIGH)
    {
      evt = HAL_UART_RX_ABOUT_FULL;
    }
    else if (cnt && !isrCfg.rxTick)
    {
      evt = HAL_UART_RX_TIMEOUT;
    }

    if (isrCfg.txMT)
    {
      isrCfg.txMT = 0;
      evt |= HAL_UART_TX_EMPTY;
    }

    if (evt)
    {
      isrCfg.uartCB(HAL_UART_ISR-1, evt);
    }
  }
}

示例#2

文件： _hal_uart_isr.c 项目： DeqingSun/CC2541WristBandHack

/**************************************************************************************************
 * @fn      HalUARTRxAvailISR()
 *
 * @brief   Calculate Rx Buffer length - the number of bytes in the buffer.
 *
 * @param   none
 *
 * @return  length of current Rx Buffer
 **************************************************************************************************/
static uint16 HalUARTRxAvailISR(void)
{
  return HAL_UART_ISR_RX_AVAIL();
}