C++ (Cpp) HAL_UART_ISR_TX_AVAIL Examples

Example #1

File: _hal_uart_isr.c Project: DeqingSun/CC2541WristBandHack

/******************************************************************************
 * @fn      HalUARTWriteISR
 *
 * @brief   Write a buffer to the UART.
 *
 * @param   buf - pointer to the buffer that will be written, not freed
 *          len - length of
 *
 * @return  length of the buffer that was sent
 *****************************************************************************/
static uint16 HalUARTWriteISR(uint8 *buf, uint16 len)
{
  uint16 cnt;

  // Enforce all or none.
  if (HAL_UART_ISR_TX_AVAIL() < len)
  {
    return 0;
  }

  for (cnt = 0; cnt < len; cnt++)
  {
    isrCfg.txBuf[isrCfg.txTail] = *buf++;
    isrCfg.txMT = 0;

    if (isrCfg.txTail >= HAL_UART_ISR_TX_MAX-1)
    {
      isrCfg.txTail = 0;
    }
    else
    {
      isrCfg.txTail++;
    }

    // Keep re-enabling ISR as it might be keeping up with this loop due to other ints.
    IEN2 |= UTXxIE;
  }

  return cnt;
}

Example #2

File: _hal_uart_isr.c Project: LILCMU/WRATIOT

/******************************************************************************
 * @fn      HalUARTWriteISR
 *
 * @brief   Write a buffer to the UART.
 *
 * @param   buf - pointer to the buffer that will be written, not freed
 *          len - length of
 *
 * @return  length of the buffer that was sent
 *****************************************************************************/
uint16 HalUARTWriteISR(uint8 *buf, uint16 len)
{
  uint16 cnt;

  // Enforce all or none.
  if (HAL_UART_ISR_TX_AVAIL() < len)
  {
    return 0;
  }

  for (cnt = 0; cnt < len; cnt++)
  {
    isrCfg.txBuf[isrCfg.txTail] = *buf++;
    isrCfg.txMT = 0;

    if (isrCfg.txTail >= HAL_UART_ISR_TX_MAX-1)
    {
      isrCfg.txTail = 0;
    }
    else
    {
      isrCfg.txTail++;
    }

    UTXxIF = 1;
  }

  return cnt;
}