public EECommDeviceUART(string model, int busAddr, ScanConfigurationUART scanConf, bool uniAdapter) : base(scanConf)
{
_busAddr = busAddr;
_isUniAdapter = uniAdapter;
ModelText = model;
}
/// <summary>
/// Copy constructor.
/// </summary>
public ScanConfigurationUART(ScanConfigurationUART other)
{
if (other != null)
{
Port = other.Port;
ComPortSettings = new ComPortSettings(other.ComPortSettings);
}
}
/// <summary>
/// Ensures connection status. Connects device if necessary.
/// </summary>
public override void EnsureConnection()
{
lock (_lock_serPort)
{
ScanConfigurationUART uartConf = (ScanConfigurationUART)ScanConfigurationActive;
uartConf.UnauthorizedAccess = false;
try
{
if (_serPort == null)
{
_serPort = new System.IO.Ports.SerialPort()
{
PortName = uartConf.Port,
BaudRate = uartConf.ComPortSettings.Baudrate,
Parity = uartConf.ComPortSettings.Parity,
DataBits = uartConf.ComPortSettings.Databits,
StopBits = uartConf.ComPortSettings.Stopbits,
Handshake = uartConf.ComPortSettings.Handshake,
DtrEnable = true,
RtsEnable = true // Request-to-send (RS232 adapter power supply)
};
System.Threading.Thread.Sleep(200);
}
if (!_serPort.IsOpen)
{
_serPort.Open();
Connected = true;
}
}
catch (Exception exc)
{
// Check for UnauthorizedAccessException (port is in use by
// another program)
if (exc is UnauthorizedAccessException)
{
// Do not pass along this exception.
uartConf.UnauthorizedAccess = true;
}
else
{
throw exc;
}
}
}
}
