public Device[] AcquireDevicesOnSerialPort(SerialPort sp, byte max_addr)
        {
            Console.WriteLine("\nSending PING to serial port {0}... ", sp.PortName);
            Console.CursorVisible = false;

            bool intro = true;
            int  cx = 0, cy = 0;

            int timeout = 100;
            int counter = 0;

            sp.ReadTimeout = 20;
            byte[]           buffer    = new byte[1024];
            MessageExtractor me        = new MessageExtractor();
            List <Device>    endpoints = new List <Device>();

            // scan through 0x00 - 0xEF. Range 0xF0 - 0xFF is reserved
            max_addr = Math.Min(max_addr, (byte)0xF0);

            for (int i = 0x00; i < max_addr; i++)
            {
                //i = 0x12;
                if (intro)
                {
                    Console.Write(" Looking for device ");
                    cx    = Console.CursorLeft;
                    cy    = Console.CursorTop;
                    intro = false;
                }

                Console.SetCursorPosition(cx, cy);
                Console.ForegroundColor = ConsoleColor.Green;
                Console.Write("0x{0:X2}", i);
                Console.ForegroundColor = ConsoleColor.Gray;


                // send ping do selected device
                sp.DiscardInBuffer();
                sp.DiscardOutBuffer();
                me.Discard();

                Message ping_message = new Message((byte)i, MessageType.Ping);
                Message msg          = SendAndWaitForResponse(new Device(sp, i), ping_message, timeout, false, 0);

                if (msg != null)
                {
                    Console.WriteLine(" Found!");
                    counter++;
                    intro = true;
                    endpoints.Add(new Device(sp, i));
                }

                //break;
            }

            Console.SetCursorPosition(0, cy);
            Console.WriteLine(" Done. Found {0} devices on serial port {1}.", counter, sp.PortName);
            Console.CursorVisible = true;
            return(endpoints.ToArray());
        }
Exemplo n.º 2
0
        private void Ack(object obj)
        {
            ScanningTask task = obj as ScanningTask;
            int          col  = 0;

            ColorConsole.WriteXY(0, task.Row, task.SerialPort.PortName);
            col += 3 + 3 + 1;

            var sp        = task.SerialPort;
            var me        = new MessageExtractor();
            int timeout   = 100;
            var endpoints = new List <BootloaderClient>();

            foreach (byte scanned_address in task.AddressList)
            {
                // Show scanned address
                int ccol = col;
                ColorConsole.WriteXY(ccol, task.Row, ConsoleColor.Green, $"0x{scanned_address:X2}");

                // send ping do selected device
                sp.DiscardInBuffer();
                sp.DiscardOutBuffer();
                me.Discard();

                Message ping_message = new Message(scanned_address, MessageType.Ping);
                Message msg          = SendAndWaitForResponse(new BootloaderClient(sp, scanned_address), ping_message, timeout, false, 0);

                if (msg != null)
                {
                    endpoints.Add(new BootloaderClient(sp, scanned_address));
                }


                // Show list of found clients
                ccol += 5;
                ColorConsole.WriteXY(ccol, task.Row, ConsoleColor.Yellow, "[" + string.Join(",", endpoints.Select(x => x.BootloaderAddress.ToString("X2"))) + "]");
            }

            lock (task.EndpointsCollection)
                task.EndpointsCollection.AddRange(endpoints);
        }
Exemplo n.º 3
0
        private Message SendAndWaitForResponse(BootloaderClient ep, Message request, int timeout, bool throw_timeout_exception = true, int retries = 3)
        {
            Debug.Assert(ep.BootloaderAddress == request.Address);

            MessageExtractor me = new MessageExtractor();

            byte[] buffer = new byte[1024];
            byte[] empty  = new byte[128 + 4 + 5];

            Message msg = null;

            while (retries-- >= 0)
            {
                // setup serial port
                ep.Port.DiscardInBuffer();
                ep.Port.DiscardOutBuffer();
                ep.Port.ReadTimeout = 200;

                // send data
                ep.Port.Write(request.Binary, 0, request.BinarySize);
                Thread.Sleep(0);
                //Debug.WriteLine("sent " + request.BinarySize.ToString());

                // and wait for response
                DateTime start = DateTime.Now;
                do
                {
                    int read = -1;
                    try {
                        read = ep.Port.Read(buffer, 0, buffer.Length);
                    }
                    catch (TimeoutException tex) {
                        Debug.WriteLine("TO");
                        continue; // ignore timeouts
                    }
                    catch (Exception ex) {
                        Debug.WriteLine("EX");
                        break; // shit happens
                    }

                    me.AddData(buffer, read);
                    if (me.TryExtract(ref msg, request.Address, request.Type))
                    {
                        break; // ok, got message!
                    }
                } while ((DateTime.Now - start).TotalMilliseconds <= timeout && timeout != -1);

                // if message was correctly received then stop communication
                if (msg != null)
                {
                    break;
                }
                Debug.WriteLine("RETRY");
            }
            if (msg == null && throw_timeout_exception)
            {
                throw new TimeoutException(string.Format("No response from bootloader device 0x{0:X2} on {1}", ep.BootloaderAddress, ep.Port.PortName));
            }

            return(msg);
        }