C＃SerialPort.ReadLine与终端串行读取的区别

Question

What are the differences between this C# code running inside Unity:

    SerialPort stream = new SerialPort ( "/dev/cu.usbserial-A9Y59ZJV", 9600 );
    stream.ReadTimeout = 1000;
    stream.Open();

    while( stream.IsOpen )
    {
        try
        {
            Debug.Log( stream.ReadLine() );
        }
        catch (TimeoutException e)
        {
            Debug.LogError (name + " timed out reading from Arduino: " + e);
        }
    }
}

and running the Unix terminal command:

screen /dev/cu.usbserial-A9Y59ZJV 9600 –L

The C# Code throws TimeoutExceptions. The Terminal command reads data (it comes in ever second)

The two are not ran at the same time. The unity code is in reality split into Start() and Update() messages properly.

Answer 1

I realised my mistake while writing the question, but am answering incase someone else has the same problem.

Be careful with the difference between "\\r\\n" and "\\n". C#s SerialPort expects different values depending on platform .

If you're sending data without the receiving platforms version of a newline, you cannot use ReadLine . Use ReadByte instead.