using System;

using System.Collections.Generic;

using System.IO;

using System.IO.Ports;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Data;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Imaging;

using System.Windows.Navigation;

using System.Windows.Shapes;

​

namespace VZprog

{

    /// <summary>

    /// Logika interakcji dla klasy MainWindow.xaml

    /// </summary>

    public partial class MainWindow : Window

    {

        AldlFrame msg = new AldlFrame();

        SerialPort Port = new SerialPort("COM1", 8192, Parity.None, 8, StopBits.One);

​

        public MainWindow()

        {

            InitializeComponent();

        }

​

        private void SerialPortList_SelectionChanged(object sender, SelectionChangedEventArgs e)

        {

            ConnectButton.IsEnabled = true;

        }

​

        private void SerialPortList_DropDownOpened(object sender, EventArgs e)

        {

            string[] ports = SerialPort.GetPortNames();

            SerialPortList.Items.Clear();

            foreach (string port in ports)

            {

                SerialPortList.Items.Add(port);

            }

        }

​

        private void ConnectButton_Click(object sender, RoutedEventArgs e)

        {

            if((string)ConnectButton.Content == "Connect")

            {

                if(SerialPortList.Text != "")

                {

                    SerialPortList.IsEnabled = false;

                    ConnectButton.Content = "Disconnect";

                    Port.PortName = SerialPortList.Text;

                    try

                    {

                        Port.Open();

                    }

                    catch { Exception ex; }

                }

            }

            else

            {

                SerialPortList.IsEnabled = true;

                ConnectButton.Content = "Connect";

                try

                {

                    Port.Close();

                }

                catch { Exception ex; }

            }

        }

​

        private void DataReceivedHandler(object sender, SerialDataReceivedEventArgs e)

        {

            SerialPort Port = (SerialPort)sender;

            msg.AppendByte((byte)Port.ReadByte());

        }

    }

​

​

    public class AldlFrame

    {

        private static byte ByteCount = 0;

        private static byte FramePayload = 0;

​

        public void AppendByte(byte data)

        {

            GetRawData[ByteCount++] = data;

            if (ByteCount > 3) ProcessFrame();

        }

​

        private void ProcessFrame()

        {

            if(GetRawData[1] > 0x55)

            {

                //Correct frame length

                FramePayload = GetRawData[1] - 0x55;

                if(ByteCount == FramePayload + 3) // 2 byte header + 1 byte checksum

                {

                    byte sum = 0;

                    //received whole message

                    foreach (byte b in GetRawData)

                    {

                        sum += b;

                    }

                    if(sum == 0xFF)

                    {

                        //checksum correct

                        MainWindow.RxTextBox.Append(Convert.ToString(GetRawData));

                    }

                }

            }

        }       

​

        public static byte[] GetRawData { get; } = new byte[170];

    }

}