问题描述
我要读我的串行端口，但只有当数据来源（我想没有轮询）。
I want read my serial port but only when data comes(I want not polling).
这是我要做的事。
Schnittstelle = new SerialPort("COM3");
Schnittstelle.BaudRate = 115200;
Schnittstelle.DataBits = 8;
Schnittstelle.StopBits = StopBits.Two;
....
然后我启动一个线程
And then I start a thread
beginn = new Thread(readCom);
beginn.Start();
在我readCom里我读连续（轮询:(）
and in my readCom I'm reading continuous (polling :( )
private void readCom()
{
try
{
while (Schnittstelle.IsOpen)
{
Dispatcher.BeginInvoke(new Action(() =>
{
ComWindow.txtbCom.Text = ComWindow.txtbCom.Text + Environment.NewLine + Schnittstelle.ReadExisting();
ComWindow.txtbCom.ScrollToEnd();
}));
beginn.Join(10);
}
}
catch (ThreadAbortException)
{
}
catch (Exception ex)
{
System.Windows.Forms.MessageBox.Show(ex.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
我要当一个中断来临YOUT读取。但是，我怎么能做到这一点？
I want yout read when a Interrupt is coming. But how can I do that ?
推荐答案
您将有一个事件处理程序添加到DataReceived事件检索。
You will have to add an eventHandler to the DataReceived event.
下面是msdn.microsoft.com一个例子，有些编辑：查看评论：
Below is an example from msdn.microsoft.com, with some edits: see comments!:
public static void Main()
{
SerialPort mySerialPort = new SerialPort("COM1");
mySerialPort.BaudRate = 9600;
mySerialPort.Parity = Parity.None;
mySerialPort.StopBits = StopBits.One;
mySerialPort.DataBits = 8;
mySerialPort.Handshake = Handshake.None;
mySerialPort.DataReceived += new SerialDataReceivedEventHandler(DataReceivedHandler);
mySerialPort.Open();
Console.WriteLine("Press any key to continue...");
Console.WriteLine();
Console.ReadKey();
mySerialPort.Close();
}
private static void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)
{
SerialPort sp = (SerialPort)sender;
string indata = sp.ReadExisting();
Debug.Print("Data Received:");
Debug.Print(indata);
}
每当数据到来时，DataReceivedHandler将触发您的信息打印到控制台。我想你应该能够做到这一点在你的code。
Everytime data comes in, the DataReceivedHandler will trigger and prints your data to the console. I think you should be able to do this in your code.
这篇关于C＃只读串行口，当数据来源的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！