你如何阅读Windows 10核心的串口

Question

在Raspberry PI上使用python我使用与下面显示的类似的代码来从串口读取数据:

baud = 9600                 # baud rate
port = '/dev/ttyACM0'       # serial URF port on this computer

ser = serial.Serial(port, baud)
ser.timeout = 0 
var message = ser.read(9);

基本上我只是希望能够从串口读取消息并根据该消息执行操作.

如何使用Windows 10 Core和c#实现这一点,任何人都能指出正确的方向或提供代码示例吗？

提前感谢您收到的任何帮助.

Answer 1

事实证明，PI 上的串行端口还不支持，这非常令人沮丧：https://www.raspberrypi.org/forums/viewtopic.php ?t=109047&p=751638

这是支持的方式：

serialPort = await SerialDevice.FromIdAsync(comPortId);

serialPort.WriteTimeout = TimeSpan.FromMilliseconds(1000); 

serialPort.ReadTimeout = TimeSpan.FromMilliseconds(1000); 

serialPort.BaudRate = 115200;

serialPort.Parity = SerialParity.None; 

serialPort.StopBits = SerialStopBitCount.One; 

serialPort.DataBits = 7; 

serialPort.Handshake = SerialHandshake.None; 

serialPort.IsRequestToSendEnabled = true; 

dataReaderObject = new DataReader(serialPort.InputStream);

  // Set InputStreamOptions to complete the asynchronous read operation when one or more bytes is available
dataReaderObject.InputStreamOptions = InputStreamOptions.Partial;
 // Create a task object to wait for data on the serialPort.InputStream
loadAsyncTask = dataReaderObject.LoadAsync(ReadBufferLength).AsTask(cancellationToken);

// Launch the task and wait
            UInt32 bytesRead = await loadAsyncTask;
            if (bytesRead > 0)
            {
                try
                {
                    var msg = dataReaderObject.ReadString(bytesRead);
                }
                catch (Exception ex ) {
                }
}