private void Read()
{
while (_continue)
{
try
{
int bytesToRead = _serialPort.BytesToRead;
if (bytesToRead > 0)
{
bytesToRead = bytesToRead + _readBytes < UART_READ_BUFFER_SIZE ? bytesToRead : UART_READ_BUFFER_SIZE - _readBytes;
_serialPort.Read(_readBuffer, _readBytes, bytesToRead);
_readBytes += bytesToRead;
if (_readBuffer[_readBytes - 1] == '\r')
{
CommandHost.TegamServiceCode_t serviceCode;
byte[] data;
byte[] decodedBuf = new byte[_readBytes + 1];
// decoded what was read from UART
COBS.Decode(Encoding.Default.GetBytes(_readBuffer), (ushort)(_readBytes + 1), ref decodedBuf);
if (CommandHost.Parse(decodedBuf, out serviceCode, out data))
{
switch (serviceCode)
{
case CommandHost.TegamServiceCode_t.TEGAM_ERROR:
MessageBox.Show("Received an error from Tegam 919!", "Error", MessageBoxButton.OK, MessageBoxImage.Error);
break;
case CommandHost.TegamServiceCode_t.TEGAM_BLUETOOTH_GET_ACK:
MessageBox.Show("Current Bluetooth state: " + data[0]);
break;
case CommandHost.TegamServiceCode_t.TEGAM_MODEL_NUMBER_SET_ACK:
//MessageBox.Show("Received ACK for model number set.");
break;
case CommandHost.TegamServiceCode_t.TEGAM_DATA_PACKET_UPD_ACK:
//MessageBox.Show("Received ACK for data packet update.");
break;
case CommandHost.TegamServiceCode_t.TEGAM_SEND_NEXT_READING_SET_REQ:
MessageBox.Show("Received request to send next reading. Value: " + data[0]);
break;
case CommandHost.TegamServiceCode_t.TEGAM_CHANNEL_READINGS_SET_ACK:
//MessageBox.Show("Received ACK for channel readings set.");
break;
}
}
ResetReadBuffer();
}
}
}
catch (TimeoutException) { }
}
}
