private SerialPort CreateSerialPort(SerialPortModel model)
{
var serialPort = new SerialPort
{
PortName = model.SelectSerialPort,
BaudRate = model.SelectBaudRate,
DataBits = model.SelectDataBits,
Parity = model.GetParity(),
StopBits = model.GetStopBits()
};
serialPort.DataReceived += SerialPort_DataReceived;
return(serialPort);
}
public bool OpenSP()
{
if (SPserialPort != null && SPserialPort.IsOpen)
{
return(CloseSP());
}
try
{
SPserialPort.PortName = SerialPortModel.SPPort;
SPserialPort.BaudRate = SerialPortModel.SPBaudRate;
SPserialPort.DataBits = SerialPortModel.SPDataBits;
SPserialPort.StopBits = SerialPortModel.GetStopBits(SerialPortModel.SPStopBits.ToString());
SPserialPort.Parity = SerialPortModel.GetParity(SerialPortModel.SPParity.ToString());
SPserialPort.WriteBufferSize = 1048576; /* 输出缓冲区的大小为1048576字节 = 1MB */
SPserialPort.ReadBufferSize = 2097152; /* 输入缓冲区的大小为2097152字节 = 2MB */
/* 字节编码 */
if (SerialPortModel.ASCIIEnable)
{
SPserialPort.Encoding = System.Text.Encoding.ASCII;
}
else if (SerialPortModel.UTF8Enable)
{
SPserialPort.Encoding = System.Text.Encoding.UTF8;
}
else if (SerialPortModel.UTF16Enable)
{
SPserialPort.Encoding = System.Text.Encoding.Unicode;
}
else if (SerialPortModel.UTF32Enable)
{
SPserialPort.Encoding = System.Text.Encoding.UTF32;
}
/* 发送请求（RTS）信号 */
if (SerialPortModel.RtsEnable)
{
SPserialPort.RtsEnable = true;
}
else
{
SPserialPort.RtsEnable = false;
}
/* 数据终端就绪（DTR）信号 */
if (SerialPortModel.DtrEnable)
{
SPserialPort.DtrEnable = true;
}
else
{
SPserialPort.DtrEnable = false;
}
/* 流控制 */
if (SerialPortModel.NoneEnable)
{
SPserialPort.Handshake = Handshake.None;
}
else if (SerialPortModel.RequestToSendEnable)
{
SPserialPort.Handshake = Handshake.RequestToSend;
}
else if (SerialPortModel.XOnXOffEnable)
{
SPserialPort.Handshake = Handshake.XOnXOff;
}
else if (SerialPortModel.RequestToSendXOnXOffEnable)
{
SPserialPort.Handshake = Handshake.RequestToSendXOnXOff;
}
/* 数据接收事件 */
SPserialPort.DataReceived += new SerialDataReceivedEventHandler(SerialPort_DataReceived);
/* 信号状态事件 */
SPserialPort.PinChanged += new SerialPinChangedEventHandler(SerialPortModel.SerialPort_PinChanged);
SPserialPort.Open();
if (SPserialPort.IsOpen)
{
SerialPortModel.SPBrush = Brushes.GreenYellow;
SerialPortModel.OpenCloseSP = "关闭串口";
DepictInfo = string.Format("成功打开串行端口{0}、波特率{1}、数据位{2}、停止位{3}、校验位{4}",
SPserialPort.PortName, SPserialPort.BaudRate.ToString(), SPserialPort.DataBits.ToString(),
SPserialPort.StopBits.ToString(), SPserialPort.Parity.ToString());
SerialPortModel.SPPortEnable = false;
SerialPortModel.SPBaudRateEnable = false;
SerialPortModel.SPDataBitsEnable = false;
SerialPortModel.SPStopBitsEnable = false;
SerialPortModel.SPParityEnable = false;
return(true);
}
else
{
DepictInfo = "串行端口打开失败";
return(false);
}
}
catch (UnauthorizedAccessException e)
{
DepictInfo = string.Format("[{0}]端口访问被拒绝", e.HResult.ToString("X"));
return(false);
}
catch (ArgumentOutOfRangeException e)
{
DepictInfo = string.Format("串口属性{0}是非法的", e.ParamName);
return(false);
}
catch (ArgumentException e)
{
DepictInfo = string.Format("串口{0}不支持", e.ParamName);
return(false);
}
catch (IOException e)
{
DepictInfo = string.Format("[{0}]端口处于无效状态", e.HResult.ToString("X"));
return(false);
}
catch (InvalidOperationException e)
{
DepictInfo = string.Format("[{0}]指定端口已经打开", e.HResult.ToString("X"));
return(false);
}
}