我正在尝试与另一台机器建立串行连接。我正在使用虚拟串行端口仿真器来尝试这个。我在超级终端上使用的设置如下所示。我可以看到 portopen 是true，但我无法检查我是否可以写或读。当我尝试ReadLine它提供的方法时TimeoutException，当它是 readExisting 命令时，它什么也不做。DataReceived也永远不会触发。你能帮我解决这个问题吗？
private void Page1_Load(object sender, EventArgs e)
{
//Port name can be identified by checking the ports
// section in Device Manager after connecting your device
serialPort1.PortName = "COM14"; // that one works for me
//Provide the name of port to which device is connected
//default values of hardware[check with device specification document]
serialPort1.BaudRate = 115200;
serialPort1.Parity = Parity.None;
serialPort1.DataBits = 8;
serialPort1.StopBits = StopBits.One;
serialPort1.Handshake = Handshake.None;
serialPort1.RtsEnable = true;
serialPort1.DtrEnable = true;
serialPort1.ReceivedBytesThreshold = 8;
serialPort1.ReadTimeout = 2000;
serialPort1.DataReceived += new SerialDataReceivedEventHandler(serialPort1_DataReceived); //
// Writes data to the Serial Port output buffer
//opens the port
serialPort1.Open();
}
private void serialPort1_DataReceived(object sender, SerialDataReceivedEventArgs e)
{
inputData = serialPort1.ReadExisting();
this.Invoke((MethodInvoker)delegate { DoUpdate(); });
}
public void DoUpdate()
{
textOutput.Text = (textOutput.Text + inputData);
}
private void btnReadExist_Click(object sender, EventArgs e)
{
if ((serialPort1.IsOpen == true))
{
serialPort1.WriteLine("something");
string read= serialPort1.ReadExisting();
//string output = serialPort1.ReadLine();
textOutput.Text += read;
}
}
private void Page1_FormClosed(object sender,System.Windows.Forms.FormClosedEventArgs e)
{
// Close the Serial Port
serialPort1.Close();
}