[Tinyos-devel] UartStream interface

[Roman Lim]

Hi

I just used the new UartStream interface (on tmote sky) and observed, 
that the sendDone event is signaled a bit early.
if the application releases the resource after this event, the last byte 
in the buffer is not sent.

I would suggest to change the following event in 
/tinyos-2.x/tos/chips/msp430/usart/Msp430UartP.nc
to something like this:

  async event void UsartInterrupts.txDone() {
    if ( m_tx_pos < m_tx_len ) {
      call Usart.tx( m_tx_buf[ m_tx_pos++ ] );
    }
    else {
      uint8_t* buf = m_tx_buf;
      while (!call Usart.isTxEmpty());
      m_tx_buf = NULL;
      signal UartStream.sendDone( buf, m_tx_len, SUCCESS );
    }
  }

regards
Roman