public void SerialPortOpen(string portName, String baudRate, string dataBits, string stopBits, string parity, string handshake)
{
if (serialPort.IsOpen)
{
Close();
}
serialPort.PortName = portName;
serialPort.BaudRate = Convert.ToInt32(baudRate);
serialPort.DataBits = Convert.ToInt16(dataBits);
if (handshake == "None")
{
//Never delete this property
serialPort.RtsEnable = true;
serialPort.DtrEnable = true;
}
SerialPortEventArgs args = new SerialPortEventArgs();
try
{
serialPort.StopBits = (StopBits)Enum.Parse(typeof(StopBits), stopBits);
serialPort.Parity = (Parity)Enum.Parse(typeof(Parity), parity);
serialPort.Handshake = (Handshake)Enum.Parse(typeof(Handshake), handshake);
serialPort.WriteTimeout = 1000; /*Write time out*/
serialPort.Open();
serialPort.DataReceived += new SerialDataReceivedEventHandler(DataReceived);
args.isOpend = true;
}
catch (System.Exception)
{
args.isOpend = false;
}
ComOpenEvent?.Invoke(this, args);
}
/// <summary>
/// Open Serial port
/// </summary>
/// <param name="portName"></param>
/// <param name="baudRate"></param>
public void Open(string portName, string baudRate)
{
if (_sp.IsOpen)
{
Close();
}
_sp.PortName = portName;
_sp.BaudRate = Convert.ToInt32(baudRate);
_sp.DataBits = 8;
/**
* If the Handshake property is set to None the DTR and RTS pins
* are then freed up for the common use of Power, the PC on which
* this is being typed gives +10.99 volts on the DTR pin & +10.99
* volts again on the RTS pin if set to true. If set to false
* it gives -9.95 volts on the DTR, -9.94 volts on the RTS.
* These values are between +3 to +25 and -3 to -25 volts this
* give a dead zone to allow for noise immunity.
* http://www.codeproject.com/Articles/678025/Serial-Comms-in-Csharp-for-Beginners
*/
//Never delete this property
_sp.RtsEnable = true;
_sp.DtrEnable = true;
var args = new SerialPortEventArgs();
try
{
_sp.StopBits = StopBits.One;
_sp.Parity = Parity.None;
_sp.Handshake = Handshake.None;
_sp.WriteTimeout = 1000; /*Write time out*/
_sp.Open();
_sp.DataReceived += DataReceived;
args.IsOpend = true;
}
catch (Exception)
{
args.IsOpend = false;
}
ComOpenEvent?.Invoke(this, args);
}
/// <summary>
/// 串口打开PLUS
/// 端口号，波特率，数据位，停止位，校验，handshake
/// </summary>
/// <param name="portName">端口号</param>
/// <param name="baudRate">波特率</param>
/// <param name="dataBits">数据位</param>
/// <param name="stopBits">停止位</param>
/// <param name="parity">校验</param>
/// <param name="handshake"></param>
public void Open(string portName, String baudRate,
string dataBits, string stopBits, string parity,
string handshake)
{
SerialPortEventArgs Args = new SerialPortEventArgs();
try
{
_serialPort.PortName = portName;
_serialPort.BaudRate = Convert.ToInt32(baudRate);
_serialPort.DataBits = Convert.ToInt32(dataBits);
_serialPort.StopBits = (StopBits)Enum.Parse(typeof(StopBits), stopBits);
_serialPort.Parity = (Parity)Enum.Parse(typeof(Parity), parity);
_serialPort.Handshake = (Handshake)Enum.Parse(typeof(Handshake), handshake);
_serialPort.WriteTimeout = 1000; /*Write time out*/
if (handshake == "None")
{
//Never delete this property
_serialPort.RtsEnable = true;
_serialPort.DtrEnable = true;
}
_serialPort.Open();
_serialPort.DataReceived += SerialPortDataReceived;
Args.isOpened = true;
}
catch (Exception)
{
//Console.WriteLine(ex);
Args.message = $"{portName} open failed";
Args.isOpened = false;
}
if (ComOpenEvent != null)
{
ComOpenEvent.Invoke(this, Args);
}
}