[英]Reading from serial port asynchronously using Async await method
I'm using this way for reading from serial port : 我用这种方式从串口读取:
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);
}
as we know This kind of API is called the Event-based Asynchronous Pattern (EAP), I want to write above code using Async Await method. 我们知道这种API称为基于事件的异步模式(EAP),我想使用Async Await方法编写上面的代码。
PS : with above code sometime I'm getting wrong data PS:有时上面的代码,我得到错误的数据
Thanks in Advance 提前致谢
You can also read data from SerialPort.BaseStream. 您还可以从SerialPort.BaseStream中读取数据。 Which is of type Stream so supports the awaitable ReadAsync() method.
这是Stream类型,因此支持等待的ReadAsync()方法。 Converting it to a string is up to you, use the proper Encoding.
将其转换为字符串取决于您,使用正确的编码。 The default for SerialPort is ASCIIEncoding.
SerialPort的默认值是ASCIIEncoding。
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