ArdupilotMega.ArduinoSTK.downloadflash C# (CSharp) Метод

        public byte[] downloadflash(short length)
        {
            if (!this.IsOpen)
            {
                throw new Exception("Port Not Open");
            }
            byte[] data = new byte[length];

            this.ReadTimeout = 1000;

            byte[] command = new byte[] { (byte)'t', (byte)(length >> 8), (byte)(length & 0xff), (byte)'F', (byte)' ' };
            this.Write(command, 0, command.Length);

            if (this.ReadByte() == 0x14)
            { // 0x14

                int read = length;
                while (read > 0)
                {
                    //Console.WriteLine("offset {0} read {1}", length - read, read);
                    read -= this.Read(data, length - read, read);
                    //System.Threading.Thread.Sleep(1);
                }

                if (this.ReadByte() != 0x10)  // 0x10
                    throw new Exception("Lost Sync 0x10");
            }
            else
            {
                throw new Exception("Lost Sync 0x14");
            }
            return data;
        }

        private void BUT_copy1280_Click(object sender, EventArgs e)
        {
            ArduinoSTK port = new ArduinoSTK();
            port.BaudRate = 57600;
            port.DataBits = 8;
            port.StopBits = StopBits.One;
            port.Parity = Parity.None;
            port.DtrEnable = true;

            try
            {
                port.PortName = ArdupilotMega.MainV2.comportname;

                Console.WriteLine("Open Port");
                port.Open();
                Console.WriteLine("Connect AP");
                if (port.connectAP())
                {
                    Console.WriteLine("Download AP");
                    byte[] EEPROM = new byte[1024 * 4];

                    for (int a = 0; a < 4 * 1024; a += 0x100)
                    {
                        port.setaddress(a);
                        port.download(0x100).CopyTo(EEPROM, a);
                    }
                    Console.WriteLine("Verify State");
                    if (port.keepalive())
                    {
                        StreamWriter sw = new StreamWriter(Path.GetDirectoryName(Application.ExecutablePath) + Path.DirectorySeparatorChar + @"EEPROM1280.bin");
                        BinaryWriter bw = new BinaryWriter(sw.BaseStream);
                        bw.Write(EEPROM, 0, EEPROM.Length);
                        bw.Close();

                        Console.WriteLine("Download AP");
                        byte[] FLASH = new byte[1024 * 128];

                        for (int a = 0; a < FLASH.Length; a += 0x100)
                        {
                            port.setaddress(a);
                            port.downloadflash(0x100).CopyTo(FLASH, a);
                        }

                        sw = new StreamWriter(Path.GetDirectoryName(Application.ExecutablePath) + Path.DirectorySeparatorChar + @"FLASH1280.bin");
                        bw = new BinaryWriter(sw.BaseStream);
                        bw.Write(FLASH, 0, FLASH.Length);
                        bw.Close();

                    }
                    else
                    {
                        MessageBox.Show("Communication Error - Bad data");
                    }
                }
                else
                {
                    MessageBox.Show("Communication Error - no connection");
                }
                port.Close();
            }
            catch (Exception ex) { MessageBox.Show("Port Error? " + ex.ToString()); if (port != null && port.IsOpen) { port.Close(); } }
        }