Exemplo n.º 1
0
        private void SetupSLCanPort(ICommsSerial port)
        {
            //check if we started from within mavlink - if not get settings from menu and create port
            if (port == null || !port.IsOpen)
            {
                switch (MainV2._connectionControl.CMB_serialport.Text)
                {
                case "TCP":
                    port = new TcpSerial();
                    break;

                case "UDP":
                    port = new UdpSerial();
                    break;

                case "WS":
                    port = new WebSocket();
                    break;

                case "UDPCl":
                    port = new UdpSerialConnect();
                    break;

                default:
                    port = new SerialPort()
                    {
                        PortName = MainV2._connectionControl.CMB_serialport.Text,
                        BaudRate = int.Parse(MainV2._connectionControl.CMB_baudrate.Text)
                    };
                    break;
                }
            }

            if (can == null)
            {
                can = new DroneCAN.DroneCAN();
            }

            can.SourceNode = 127;

            can.NodeAdded += (id, msg) =>
            {
                this.BeginInvoke((Action) delegate
                {
                    allnodes.Add(new DroneCANModel()
                    {
                        ID     = id,
                        Name   = "?",
                        Health = msg.health.ToString(),
                        Mode   = msg.mode.ToString(),
                        Uptime = TimeSpan.FromSeconds(msg.uptime_sec),
                        VSC    = msg.vendor_specific_status_code
                    });

                    uAVCANModelBindingSource.ResetBindings(false);
                });
            };

            if (!port.IsOpen)
            {
                try
                {
                    port.Open();
                }
                catch (Exception)
                {
                    CustomMessageBox.Show(Strings.CheckPortSettingsOr);
                    return;
                }
            }

            if (chk_log.Checked)
            {
                can.LogFile = Settings.Instance.LogDir + Path.DirectorySeparatorChar +
                              DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss") + ".can";
            }

            var prd = new ProgressReporterDialogue();

            prd.UpdateProgressAndStatus(-1, "Trying to connect");
            prd.DoWork          += sender => can.StartSLCAN(port.BaseStream);
            prd.btnCancel.Click += (sender, args) =>
            {
                prd.doWorkArgs.CancelAcknowledged = true;
                port.Close();
            };
            prd.RunBackgroundOperationAsync();

            if (prd.doWorkArgs.CancelRequested || prd.doWorkArgs.ErrorMessage != null)
            {
                return;
            }

            can.SetupFileServer();

            can.SetupDynamicNodeAllocator();

            can.MessageReceived += (frame, msg, transferID) =>
            {
                if (msg.GetType() == typeof(DroneCAN.DroneCAN.uavcan_protocol_NodeStatus))
                {
                    var ns = msg as DroneCAN.DroneCAN.uavcan_protocol_NodeStatus;

                    var nodes = allnodes.Where((a) => a.ID == frame.SourceNode);

                    if (nodes.Count() > 0 && nodes.First().Name == "?")
                    {
                        var statetracking = new DroneCAN.DroneCAN.statetracking();
                        // get node info
                        DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_req gnireq =
                            new DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_req()
                        {
                        };
                        gnireq.encode(DroneCAN.DroneCAN.dronecan_transmit_chunk_handler, statetracking);

                        var slcan = can.PackageMessageSLCAN(frame.SourceNode, 30, 0, gnireq);
                        can.WriteToStreamSLCAN(slcan);
                    }

                    foreach (var item in nodes)
                    {
                        switch (ns.health)
                        {
                        case (byte)DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_HEALTH_OK:
                            item.Health = "OK";
                            break;

                        case (byte)DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_HEALTH_WARNING:
                            item.Health = "WARNING";
                            break;

                        case (byte)DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_HEALTH_ERROR:
                            item.Health = "ERROR";
                            break;

                        case (byte)DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_HEALTH_CRITICAL:
                            item.Health = "CRITICAL";
                            break;
                        }

                        switch (ns.mode)
                        {
                        case (byte)DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_MODE_OPERATIONAL:
                            item.Mode = "OPERATIONAL";
                            break;

                        case (byte)DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_MODE_INITIALIZATION:
                            item.Mode = "INITIALIZATION";
                            break;

                        case (byte)DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_MODE_MAINTENANCE:
                            item.Mode = "MAINTENANCE";
                            break;

                        case (byte)DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_MODE_SOFTWARE_UPDATE:
                            item.Mode = "SOFTWARE_UPDATE";
                            break;

                        case (byte)DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_MODE_OFFLINE:
                            item.Mode = "OFFLINE";
                            break;
                        }

                        item.Uptime = TimeSpan.FromSeconds(ns.uptime_sec);
                    }

                    _updatePending = true;
                }
                else if (msg.GetType() == typeof(DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_res))
                {
                    var gnires = msg as DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_res;

                    var nodes = allnodes.Where((a) => a.ID == frame.SourceNode);

                    foreach (var item in nodes)
                    {
                        item.Name            = ASCIIEncoding.ASCII.GetString(gnires.name, 0, gnires.name_len);
                        item.HardwareVersion = gnires.hardware_version.major + "." + gnires.hardware_version.minor;
                        item.SoftwareVersion = gnires.software_version.major + "." + gnires.software_version.minor + "." +
                                               gnires.software_version.vcs_commit.ToString("X");
                        item.SoftwareCRC = gnires.software_version.image_crc;
                        item.HardwareUID = gnires.hardware_version.unique_id.Select(a => a.ToString("X2")).Aggregate((a, b) =>
                        {
                            return(a + " " + b);
                        });
                        item.RawMsg = gnires;
                        item.VSC    = gnires.status.vendor_specific_status_code;
                    }

                    _updatePending = true;
                }
                else if (msg.GetType() == typeof(DroneCAN.DroneCAN.uavcan_protocol_debug_LogMessage))
                {
                    var debug = msg as DroneCAN.DroneCAN.uavcan_protocol_debug_LogMessage;

                    this.BeginInvoke((Action) delegate()
                    {
                        DGDebug.Rows.Insert(0, new object[]
                        {
                            frame.SourceNode, debug.level.value,
                            ASCIIEncoding.ASCII.GetString(debug.source, 0, debug.source_len),
                            ASCIIEncoding.ASCII.GetString(debug.text, 0, debug.text_len)
                        });
                        if (DGDebug.Rows.Count > 100)
                        {
                            DGDebug.Rows.RemoveAt(DGDebug.Rows.Count - 1);
                        }
                    });
                }
            };
        }
Exemplo n.º 2
0
        static void Main(string[] args)
        {
            Console.CancelKeyPress += Console_CancelKeyPress;

            if (args.Length < 2)
            {
                Console.WriteLine("usage: UAVCANFlasher com1 flow-crc.bin");
                Console.WriteLine("this program will flash the firmware to every connected uavcan node. DONT connect devices that its not intended for");
                Console.ReadKey();
                return;
            }

            var portname      = args[0];
            var firmware_name = args[1];

            var port = new MissionPlanner.Comms.SerialPort(args[0], 115200);

            port.Open();

            if (!File.Exists(firmware_name))
            {
                Console.WriteLine("firmware file not found");
                Console.ReadKey();
                return;
            }

            MAVLinkInterface mav = new MAVLinkInterface();

            mav.BaseStream = port;
            mav.getHeartBeat();

            try
            {
                mav.GetParam((byte)mav.sysidcurrent, (byte)mav.compidcurrent, "CAN_SLCAN_TIMOUT");
                mav.GetParam((byte)mav.sysidcurrent, (byte)mav.compidcurrent, "CAN_SLCAN_SERNUM");

                mav.setParam("CAN_SLCAN_TIMOUT", 2, true);

                mav.setParam("CAN_SLCAN_SERNUM", 0, true); // usb
            }
            catch { }

            DroneCAN.DroneCAN can = new DroneCAN.DroneCAN();

            can.SourceNode = 127;

            //can.Update();


            // updater
            var       firmware_namebytes = ASCIIEncoding.ASCII.GetBytes(Path.GetFileName(firmware_name.ToLower()));
            ulong     firmware_crc       = ulong.MaxValue;
            Exception exception          = null;
            Dictionary <int, DateTime> lastseenDateTimes = new Dictionary <int, DateTime>();

            DroneCAN.DroneCAN.MessageRecievedDel updatedelegate = (frame, msg, transferID) =>
            {
                if (frame.IsServiceMsg && frame.SvcDestinationNode != can.SourceNode)
                {
                    return;
                }

                if (frame.SourceNode == 0)
                {
                    return;
                }

                lastseenDateTimes[frame.SourceNode] = DateTime.Now;

                if (msg.GetType() == typeof(DroneCAN.DroneCAN.uavcan_protocol_file_BeginFirmwareUpdate_res))
                {
                    var bfures = msg as DroneCAN.DroneCAN.uavcan_protocol_file_BeginFirmwareUpdate_res;
                    if (bfures.error != 0)
                    {
                        exception = new Exception(frame.SourceNode + " Begin Firmware Update returned an error");
                    }
                }
                else if (msg.GetType() == typeof(DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_res))
                {
                    var gnires = msg as DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_res;
                    Console.WriteLine("GetNodeInfo: seen '{0}' from {1}",
                                      ASCIIEncoding.ASCII.GetString(gnires.name).TrimEnd('\0'), frame.SourceNode);
                    if (firmware_crc != gnires.software_version.image_crc || firmware_crc == ulong.MaxValue)
                    {
                        if (gnires.status.mode != DroneCAN.DroneCAN.uavcan_protocol_NodeStatus.UAVCAN_PROTOCOL_NODESTATUS_MODE_SOFTWARE_UPDATE)
                        {
                            Console.WriteLine("Update node " + frame.SourceNode);
                            var req_msg =
                                new DroneCAN.DroneCAN.uavcan_protocol_file_BeginFirmwareUpdate_req()
                            {
                                image_file_remote_path = new DroneCAN.DroneCAN.uavcan_protocol_file_Path()
                                {
                                    path = firmware_namebytes
                                },
                                source_node_id = can.SourceNode
                            };
                            req_msg.image_file_remote_path.path_len = (byte)firmware_namebytes.Length;

                            var slcan = can.PackageMessageSLCAN(frame.SourceNode, frame.Priority, transferID, req_msg);
                            can.WriteToStreamSLCAN(slcan);
                        }
                        else
                        {
                            //exception = new Exception("already in update mode");
                            return;
                        }
                    }
                    else
                    {
                        Console.WriteLine(frame.SourceNode + " CRC matchs");
                    }
                }
            };
            can.MessageReceived += updatedelegate;

            // getfile crc
            using (var stream = File.OpenRead(firmware_name))
            {
                string app_descriptor_fmt = "<8cQI";
                var    SHARED_APP_DESCRIPTOR_SIGNATURES = new byte[][] {
                    new byte[] { 0xd7, 0xe4, 0xf7, 0xba, 0xd0, 0x0f, 0x9b, 0xee },
                    new byte[] { 0x40, 0xa2, 0xe4, 0xf1, 0x64, 0x68, 0x91, 0x06 }
                };

                var app_descriptor_len = 8 * 1 + 8 + 4;

                var location = GetPatternPositions(stream, SHARED_APP_DESCRIPTOR_SIGNATURES[0]);
                stream.Seek(0, SeekOrigin.Begin);
                var location2 = GetPatternPositions(stream, SHARED_APP_DESCRIPTOR_SIGNATURES[1]);

                if (location.Count > 0 || location2.Count > 0)
                {
                    var offset = location.Count > 0 ? location[0] : location2[0];
                    stream.Seek(offset, SeekOrigin.Begin);
                    byte[] buf = new byte[app_descriptor_len];
                    stream.Read(buf, 0, app_descriptor_len);
                    firmware_crc = BitConverter.ToUInt64(buf, 8);
                }
            }

            can.NodeAdded += (id, status) =>
            {
                Console.WriteLine(id + " Node status seen");
                // get node info
                DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_req gnireq = new DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_req()
                {
                };

                var slcan = can.PackageMessageSLCAN((byte)id, 30, 0, gnireq);

                can.WriteToStreamSLCAN(slcan);
            };

            DroneCAN.DroneCAN.uavcan_protocol_NodeStatus node;
            can.FileSendComplete += (id, file) =>
            {
                Console.WriteLine(id + " File send complete " + file);

                can.NodeList.TryRemove(id, out node);
                lastseenDateTimes.Remove(id);
            };

            can.StartSLCAN(port.BaseStream);

            can.ServeFile(args[1]);

            can.SetupFileServer();

            can.SetupDynamicNodeAllocator();

            Console.WriteLine("Ready.. " + portname + " -> " + firmware_name);
            run = true;
            while (run)
            {
                Thread.Sleep(100);

                foreach (var lastseenDateTime in lastseenDateTimes.ToArray())
                {
                    if (lastseenDateTime.Value.AddSeconds(3) < DateTime.Now)
                    {
                        can.NodeList.TryRemove(lastseenDateTime.Key, out node);
                        lastseenDateTimes.Remove(lastseenDateTime.Key);
                        Console.WriteLine(lastseenDateTime.Key + " Remove old node - 3 seconds of no data");
                    }
                }

                if (exception != null)
                {
                    Console.WriteLine(exception.ToString());
                    exception = null;
                }
            }
        }
        public void startslcan(byte canport)
        {
            but_slcanmode1.Enabled = false;
            but_slcanmode2.Enabled = false;

            try
            {
                if (!MainV2.comPort.BaseStream.IsOpen)
                {
                    if (CustomMessageBox.Show(
                            "You are not currently connected via mavlink. Please make sure the device is already in slcan mode or this is the slcan serialport.",
                            "SLCAN", CustomMessageBox.MessageBoxButtons.OKCancel) != CustomMessageBox.DialogResult.OK)
                    {
                        return;
                    }
                }

                if (MainV2.comPort.BaseStream.IsOpen)
                {
                    var cport = MainV2.comPort.MAV.param["CAN_SLCAN_CPORT"].Value;
                    MainV2.comPort.setParam((byte)MainV2.comPort.sysidcurrent, (byte)MainV2.comPort.compidcurrent,
                                            "CAN_SLCAN_CPORT", canport, true);
                    if (cport == 0)
                    {
                        CustomMessageBox.Show("Reboot required" + " after setting CPORT. Please reboot!",
                                              Strings.ERROR);
                        return;
                    }

                    MainV2.comPort.setParam((byte)MainV2.comPort.sysidcurrent, (byte)MainV2.comPort.compidcurrent,
                                            "CAN_SLCAN_TIMOUT", 2, true);
                    MainV2.comPort.setParam((byte)MainV2.comPort.sysidcurrent, (byte)MainV2.comPort.compidcurrent,
                                            "CAN_P" + canport + "_DRIVER", 1);
                    //MainV2.comPort.setParam((byte)MainV2.comPort.sysidcurrent, (byte)MainV2.comPort.compidcurrent, "CAN_SLCAN_SERNUM", 0, true); // usb
                    // blind send
                    var paramname = "CAN_SLCAN_SERNUM";
                    var req       = new MAVLink.mavlink_param_set_t
                    {
                        target_system    = (byte)MainV2.comPort.sysidcurrent,
                        target_component = (byte)MainV2.comPort.compidcurrent,
                        param_type       = (byte)MainV2.comPort
                                           .MAVlist[(byte)MainV2.comPort.sysidcurrent, (byte)MainV2.comPort.compidcurrent]
                                           .param_types[paramname],
                        param_id = paramname.MakeBytesSize(16)
                    };
                    MainV2.comPort.sendPacket(req, (byte)MainV2.comPort.sysidcurrent,
                                              (byte)MainV2.comPort.compidcurrent);
                    MainV2.comPort.sendPacket(req, (byte)MainV2.comPort.sysidcurrent,
                                              (byte)MainV2.comPort.compidcurrent);
                }
            }
            catch
            {
            }

            {
                // grab the connected port
                var port = MainV2.comPort.BaseStream;

                // place an invalid port in its place
                if (port != null)
                {
                    MainV2.comPort.BaseStream = new Comms.SerialPort()
                    {
                        PortName = port.PortName, BaudRate = port.BaudRate
                    }
                }
                ;

                //check if we started from within mavlink - if not get settings from menu and create port
                if (port == null || !port.IsOpen)
                {
                    switch (MainV2._connectionControl.CMB_serialport.Text)
                    {
                    case "TCP":
                        port = new TcpSerial();
                        break;

                    case "UDP":
                        port = new UdpSerial();
                        break;

                    case "WS":
                        port = new WebSocket();
                        break;

                    case "UDPCl":
                        port = new UdpSerialConnect();
                        break;

                    default:
                        port = new SerialPort()
                        {
                            PortName = MainV2._connectionControl.CMB_serialport.Text,
                            BaudRate = int.Parse(MainV2._connectionControl.CMB_baudrate.Text)
                        };
                        break;
                    }
                }

                if (can == null)
                {
                    can = new DroneCAN.DroneCAN();
                }

                can.SourceNode = 127;

                can.NodeAdded += (id, msg) =>
                {
                    this.BeginInvoke((Action) delegate
                    {
                        allnodes.Add(new DroneCANModel()
                        {
                            ID     = id,
                            Name   = "?",
                            Health = msg.health.ToString(),
                            Mode   = msg.mode.ToString(),
                            Uptime = TimeSpan.FromSeconds(msg.uptime_sec),
                            VSC    = msg.vendor_specific_status_code
                        });

                        uAVCANModelBindingSource.ResetBindings(false);
                    });
                };

                if (!port.IsOpen)
                {
                    try
                    {
                        port.Open();
                    }
                    catch (Exception)
                    {
                        CustomMessageBox.Show(Strings.CheckPortSettingsOr);
                        return;
                    }
                }

                if (chk_log.Checked)
                {
                    can.LogFile = Settings.Instance.LogDir + Path.DirectorySeparatorChar +
                                  DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss") + ".can";
                }

                var prd = new ProgressReporterDialogue();
                prd.UpdateProgressAndStatus(-1, "Trying to connect");
                prd.DoWork          += sender => can.StartSLCAN(port.BaseStream);
                prd.btnCancel.Click += (sender, args) =>
                {
                    prd.doWorkArgs.CancelAcknowledged = true;
                    port.Close();
                };
                prd.RunBackgroundOperationAsync();

                if (prd.doWorkArgs.CancelRequested || prd.doWorkArgs.ErrorMessage != null)
                {
                    return;
                }

                can.SetupFileServer();

                can.SetupDynamicNodeAllocator();

                can.MessageReceived += (frame, msg, transferID) =>
                {
                    if (msg.GetType() == typeof(DroneCAN.DroneCAN.uavcan_protocol_NodeStatus))
                    {
                        var ns = msg as DroneCAN.DroneCAN.uavcan_protocol_NodeStatus;

                        var nodes = allnodes.Where((a) => a.ID == frame.SourceNode);

                        if (nodes.Count() > 0 && nodes.First().Name == "?")
                        {
                            var statetracking = new DroneCAN.DroneCAN.statetracking();
                            // get node info
                            DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_req gnireq = new DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_req()
                            {
                            };
                            gnireq.encode(DroneCAN.DroneCAN.dronecan_transmit_chunk_handler, statetracking);

                            var slcan = can.PackageMessage(frame.SourceNode, 30, 0, gnireq);
                            can.WriteToStream(slcan);
                        }

                        foreach (var item in nodes)
                        {
                            switch (ns.health)
                            {
                            case (byte)DroneCAN.DroneCAN.UAVCAN_PROTOCOL_NODESTATUS_HEALTH_OK:
                                item.Health = "OK";
                                break;

                            case (byte)DroneCAN.DroneCAN.UAVCAN_PROTOCOL_NODESTATUS_HEALTH_WARNING:
                                item.Health = "WARNING";
                                break;

                            case (byte)DroneCAN.DroneCAN.UAVCAN_PROTOCOL_NODESTATUS_HEALTH_ERROR:
                                item.Health = "ERROR";
                                break;

                            case (byte)DroneCAN.DroneCAN.UAVCAN_PROTOCOL_NODESTATUS_HEALTH_CRITICAL:
                                item.Health = "CRITICAL";
                                break;
                            }
                            switch (ns.mode)
                            {
                            case (byte)DroneCAN.DroneCAN.UAVCAN_PROTOCOL_NODESTATUS_MODE_OPERATIONAL:
                                item.Mode = "OPERATIONAL";
                                break;

                            case (byte)DroneCAN.DroneCAN.UAVCAN_PROTOCOL_NODESTATUS_MODE_INITIALIZATION:
                                item.Mode = "INITIALIZATION";
                                break;

                            case (byte)DroneCAN.DroneCAN.UAVCAN_PROTOCOL_NODESTATUS_MODE_MAINTENANCE:
                                item.Mode = "MAINTENANCE";
                                break;

                            case (byte)DroneCAN.DroneCAN.UAVCAN_PROTOCOL_NODESTATUS_MODE_SOFTWARE_UPDATE:
                                item.Mode = "SOFTWARE_UPDATE";
                                break;

                            case (byte)DroneCAN.DroneCAN.UAVCAN_PROTOCOL_NODESTATUS_MODE_OFFLINE:
                                item.Mode = "OFFLINE";
                                break;
                            }
                            item.Uptime = TimeSpan.FromSeconds(ns.uptime_sec);
                        }

                        _updatePending = true;
                    }
                    else if (msg.GetType() == typeof(DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_res))
                    {
                        var gnires = msg as DroneCAN.DroneCAN.uavcan_protocol_GetNodeInfo_res;

                        var nodes = allnodes.Where((a) => a.ID == frame.SourceNode);

                        foreach (var item in nodes)
                        {
                            item.Name            = ASCIIEncoding.ASCII.GetString(gnires.name, 0, gnires.name_len);
                            item.HardwareVersion = gnires.hardware_version.major + "." + gnires.hardware_version.minor;
                            item.SoftwareVersion = gnires.software_version.major + "." + gnires.software_version.minor + "." + gnires.software_version.vcs_commit.ToString("X");
                            item.SoftwareCRC     = gnires.software_version.image_crc;
                            item.HardwareUID     = gnires.hardware_version.unique_id.Select(a => a.ToString("X2")).Aggregate((a, b) =>
                            {
                                return(a + " " + b);
                            });
                            item.RawMsg = gnires;
                            item.VSC    = gnires.status.vendor_specific_status_code;
                        }

                        _updatePending = true;
                    }
                    else if (msg.GetType() == typeof(DroneCAN.DroneCAN.uavcan_protocol_debug_LogMessage))
                    {
                        var debug = msg as DroneCAN.DroneCAN.uavcan_protocol_debug_LogMessage;

                        this.BeginInvoke((Action) delegate()
                        {
                            DGDebug.Rows.Insert(0, new object[]
                            {
                                frame.SourceNode, debug.level.value,
                                ASCIIEncoding.ASCII.GetString(debug.source, 0, debug.source_len),
                                ASCIIEncoding.ASCII.GetString(debug.text, 0, debug.text_len)
                            });
                            if (DGDebug.Rows.Count > 100)
                            {
                                DGDebug.Rows.RemoveAt(DGDebug.Rows.Count - 1);
                            }
                        });
                    }
                };
            }
        }

        DroneCAN.DroneCAN can = new DroneCAN.DroneCAN();