问MSR206磁条串口通信

EN

using System;
using System.IO.Ports;
using System.Text;
using System.Threading;

public class MSR206Test
{
    static bool _continue;
    static SerialPort _serialPort;

    public static void Main()
    {
        string message;
        StringComparer stringComparer = StringComparer.OrdinalIgnoreCase;
        _serialPort = new SerialPort("COM7", 9600, Parity.None, 8, StopBits.One);
        _serialPort.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived);
        _serialPort.Open();
        _continue = true;
        Console.WriteLine("Type Command 1 to 6 or QUIT to exit");
        while (_continue)
        {
            message = Console.ReadLine();
            if (stringComparer.Equals("quit", message))
            {
                _continue = false;
            }
            else
            {
                switch (message)
                {
                    case "1":
                        Console.WriteLine("Send ESC > reset");
                        _serialPort.Write(new byte[] { 27, 97 }, 0, 2);

                        break;
                    case "2":
                        Console.WriteLine("2 Sending ESC > firmware version)");
                        _serialPort.Write(new byte[] { 27,   118 }, 0, 2);
                        break;
                    case "3":
                        Console.WriteLine("3 Sending ESC > Serial port test)");
                        _serialPort.Write(new byte[] { 27,   101 }, 0, 2);
                        break;
                    case "4":
                        Console.WriteLine("4 Sending ESC > ram test)");
                        _serialPort.Write(new byte[] { 27, 87 }, 0, 2);
                        break;
                    case "5":
                        Console.WriteLine("5 Sending ESC >  del)");
                        _serialPort.Write(new byte[] { 27, 127 }, 0, 2);
                        break;
                    case "6":
                        Console.WriteLine("6 ESC > flash)");
                        _serialPort.Write(new byte[] { 27, 40 }, 0, 2);
                        break; 
                }
            }
        }

        _serialPort.Close();
    }

    public static void port_DataReceived(object sender, SerialDataReceivedEventArgs e)
    {
        var bytes = _serialPort.BytesToRead;
        var buffer = new byte[bytes];
        _serialPort.Read(buffer, 0, _serialPort.BytesToRead);
        for(var i = 0; i < buffer.Length; i++)
        {
            Console.WriteLine($"Response index ({i}) : " + buffer[i]); 
        }
        var data = Encoding.ASCII.GetString(buffer);
        Console.WriteLine($"Response ({buffer.Length}) : " + data); 
    }
}