public CommsLib(String param, processDataRx process_data)
{
process_decoded = process_data;
phys_connection = new CommsCon();
if (phys_connection.connect(param, process_raw))
{
connected = true;
}
else
{
phys_connection = null;
connected = false;
}
}
public bool connect(String parameter, processDataRx process_rx_data)
{
process_data = process_rx_data;
try
{
serial_port = new SerialPort(parameter);
//
// We know now that the baud rate must be 460800 because we will only be communicating with the
// the unit via USB. The actual COM port will vary with the machine so we shouldn't
// restrict ourselves.
//
// Setup the serial port
serial_port.BaudRate = 460800;
serial_port.Parity = Parity.None;
serial_port.DataBits = 8;
serial_port.StopBits = StopBits.One;
serial_port.Handshake = Handshake.None;
serial_port.ReadBufferSize = 0x10000;
serial_port.RtsEnable = true;
// Try to open it
serial_port.Open();
// Clear out the buffers
serial_port.DiscardInBuffer();
serial_port.DiscardOutBuffer();
serial_port.ReceivedBytesThreshold = 1;
// Write 'x' to the unit
serial_port.Write("x\r\n");
int loops = 10;
while (loops > 0)
{
if (serial_port.BytesToRead > 12)
{
String sdata = serial_port.ReadLine();
break;
}
System.Threading.Thread.Sleep(10);
loops--;
}
serial_port.DiscardInBuffer();
serial_port.DiscardOutBuffer();
if (loops == 0)
{
//02 00 20 E0 03
byte[] cmd = new byte[] { 0x02, 0x00, 0x20, 0xE0, 0x03 };
serial_port.Write(cmd, 0, cmd.Length);
loops = 10;
while (loops > 0)
{
if (serial_port.BytesToRead > 12)
{
String sdata = serial_port.ReadExisting();
break;
}
System.Threading.Thread.Sleep(10);
loops--;
}
serial_port.DiscardInBuffer();
serial_port.DiscardOutBuffer();
if (loops == 0)
{
serial_port.Close();
serial_port = null;
return(false);
}
}
}
catch (Exception)
{
serial_port.Close();
serial_port = null;
return(false);
}
serial_port.DataReceived += new SerialDataReceivedEventHandler(receive_data);
return(true);
}
