Beispiel #1
0
        public override void Update()
        {
            while (FTD2XX.BytesToRead(handle) >= 285)
            {
                ReadData();
            }
            if (FTD2XX.BytesToRead(handle) == 1)
            {
                FTD2XX.ReadByte(handle);
            }

            FTD2XX.Write(handle, new byte[] { 0x38 });
            alternativeRequest.BeginInvoke(null, null);
        }
Beispiel #2
0
        public TBalancerGroup(ISettings settings)
        {
            uint numDevices;

            try {
                if (FTD2XX.FT_CreateDeviceInfoList(out numDevices) != FT_STATUS.FT_OK)
                {
                    report.AppendLine("Status: FT_CreateDeviceInfoList failed");
                    return;
                }
            } catch (DllNotFoundException) { return; }
            catch (ArgumentNullException) { return; }
            catch (EntryPointNotFoundException) { return; }
            catch (BadImageFormatException) { return; }

            FT_DEVICE_INFO_NODE[] info = new FT_DEVICE_INFO_NODE[numDevices];
            if (FTD2XX.FT_GetDeviceInfoList(info, ref numDevices) != FT_STATUS.FT_OK)
            {
                report.AppendLine("Status: FT_GetDeviceInfoList failed");
                return;
            }

            // make sure numDevices is not larger than the info array
            if (numDevices > info.Length)
            {
                numDevices = (uint)info.Length;
            }

            for (int i = 0; i < numDevices; i++)
            {
                report.Append("Device Index: ");
                report.AppendLine(i.ToString(CultureInfo.InvariantCulture));
                report.Append("Device Type: ");
                report.AppendLine(info[i].Type.ToString());

                // the T-Balancer always uses an FT232BM
                if (info[i].Type != FT_DEVICE.FT_DEVICE_232BM)
                {
                    report.AppendLine("Status: Wrong device type");
                    continue;
                }

                FT_HANDLE handle;
                FT_STATUS status = FTD2XX.FT_Open(i, out handle);
                if (status != FT_STATUS.FT_OK)
                {
                    report.AppendLine("Open Status: " + status);
                    continue;
                }

                FTD2XX.FT_SetBaudRate(handle, 19200);
                FTD2XX.FT_SetDataCharacteristics(handle, 8, 1, 0);
                FTD2XX.FT_SetFlowControl(handle, FT_FLOW_CONTROL.FT_FLOW_RTS_CTS, 0x11,
                                         0x13);
                FTD2XX.FT_SetTimeouts(handle, 1000, 1000);
                FTD2XX.FT_Purge(handle, FT_PURGE.FT_PURGE_ALL);

                status = FTD2XX.Write(handle, new byte[] { 0x38 });
                if (status != FT_STATUS.FT_OK)
                {
                    report.AppendLine("Write Status: " + status);
                    FTD2XX.FT_Close(handle);
                    continue;
                }

                bool isValid         = false;
                byte protocolVersion = 0;

                int j = 0;
                while (FTD2XX.BytesToRead(handle) == 0 && j < 2)
                {
                    Thread.Sleep(100);
                    j++;
                }
                if (FTD2XX.BytesToRead(handle) > 0)
                {
                    if (FTD2XX.ReadByte(handle) == TBalancer.STARTFLAG)
                    {
                        while (FTD2XX.BytesToRead(handle) < 284 && j < 5)
                        {
                            Thread.Sleep(100);
                            j++;
                        }
                        int length = FTD2XX.BytesToRead(handle);
                        if (length >= 284)
                        {
                            byte[] data = new byte[285];
                            data[0] = TBalancer.STARTFLAG;
                            for (int k = 1; k < data.Length; k++)
                            {
                                data[k] = FTD2XX.ReadByte(handle);
                            }

                            // check protocol version 2X (protocols seen: 2C, 2A, 28)
                            isValid         = (data[274] & 0xF0) == 0x20;
                            protocolVersion = data[274];
                            if (!isValid)
                            {
                                report.Append("Status: Wrong Protocol Version: 0x");
                                report.AppendLine(
                                    protocolVersion.ToString("X", CultureInfo.InvariantCulture));
                            }
                        }
                        else
                        {
                            report.AppendLine("Status: Wrong Message Length: " + length);
                        }
                    }
                    else
                    {
                        report.AppendLine("Status: Wrong Startflag");
                    }
                }
                else
                {
                    report.AppendLine("Status: No Response");
                }

                FTD2XX.FT_Purge(handle, FT_PURGE.FT_PURGE_ALL);
                FTD2XX.FT_Close(handle);

                if (isValid)
                {
                    report.AppendLine("Status: OK");
                    hardware.Add(new TBalancer(i, protocolVersion, settings));
                }

                if (i < numDevices - 1)
                {
                    report.AppendLine();
                }
            }
        }