public static void Read(FT_HANDLE handle, byte[] buffer) { uint bytesReturned; FT_STATUS status = FT_Read(handle, buffer, (uint)buffer.Length, out bytesReturned); if (status != FT_STATUS.FT_OK || bytesReturned != buffer.Length) { throw new InvalidOperationException(); } }
public static byte ReadByte(FT_HANDLE handle) { byte buffer; uint bytesReturned; var status = FT_ReadByte(handle, out buffer, 1, out bytesReturned); if (status != FT_STATUS.FT_OK || bytesReturned != 1) { throw new InvalidOperationException(); } return(buffer); }
public static byte ReadByte(FT_HANDLE handle) { byte[] buffer = new byte[1]; uint bytesReturned; FT_STATUS status = FT_Read(handle, buffer, 1, out bytesReturned); if (status != FT_STATUS.FT_OK || bytesReturned != 1) { throw new InvalidOperationException(); } return(buffer[0]); }
public static FT_STATUS Write(FT_HANDLE handle, byte[] buffer) { uint bytesWritten; var status = FT_Write(handle, buffer, (uint)buffer.Length, out bytesWritten); if (bytesWritten != buffer.Length) { return(FT_STATUS.FT_FAILED_TO_WRITE_DEVICE); } return(status); }
public static int BytesToRead(FT_HANDLE handle) { uint amountInRxQueue; uint amountInTxQueue; uint eventStatus; if (FT_GetStatus(handle, out amountInRxQueue, out amountInTxQueue, out eventStatus) == FT_STATUS.FT_OK) { return((int)amountInRxQueue); } return(0); }
public static extern FT_STATUS FT_GetStatus(FT_HANDLE handle, out uint amountInRxQueue, out uint amountInTxQueue, out uint eventStatus);
public TBalancerGroup(ISettings settings) { uint numDevices = 0; try { if (FTD2XX.FT_CreateDeviceInfoList(out numDevices) != FT_STATUS.FT_OK) { report.AppendLine("Status: FT_CreateDeviceInfoList failed"); return; } } catch (DllNotFoundException) { return; } catch (EntryPointNotFoundException) { return; } catch (BadImageFormatException) { return; } for (int i = 0; i < numDevices; i++) { byte[] serialNumberBuf = new byte[255]; byte[] descriptionBuf = new byte[255]; FT_HANDLE ftHandle = default; uint flags = 0; uint type = 0; uint id = 0; uint locId = 0; if (FTD2XX.FT_GetDeviceInfoDetail(i, ref flags, ref type, ref id, ref locId, serialNumberBuf, descriptionBuf, out ftHandle) != FT_STATUS.FT_OK) { continue; } // For whatever reason, the returned strings contain lots of garbage past the first binary 0 string serialNumber = Encoding.UTF8.GetString(serialNumberBuf); string description = Encoding.UTF8.GetString(descriptionBuf); TrimToSize(ref serialNumber); TrimToSize(ref description); FT_DEVICE deviceType = (FT_DEVICE)type; report.Append("Device Index: "); report.AppendLine(i.ToString(CultureInfo.InvariantCulture)); report.Append("Device Type: "); report.AppendLine(deviceType.ToString()); report.Append("Description: "); report.AppendLine(description); report.Append("Serial number: "); report.AppendLine(serialNumber); FTD2XX.FT_Close(ftHandle); ftHandle = default; // the T-Balancer always uses an FT232BM if (deviceType != 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(); } } }
public static extern FT_STATUS FT_SetDataCharacteristics(FT_HANDLE handle, byte wordLength, byte stopBits, byte parity);
public static extern FT_STATUS FT_SetBaudRate(FT_HANDLE handle, uint baudRate);
public static extern FT_STATUS FT_Close(FT_HANDLE handle);
public static extern FT_STATUS FT_Open(int device, out FT_HANDLE handle);
public static extern FT_STATUS FT_ReadByte(FT_HANDLE handle, out byte buffer, uint bytesToRead, out uint bytesReturned);
public static extern FT_STATUS FT_Read(FT_HANDLE handle, [Out] byte[] buffer, uint bytesToRead, out uint bytesReturned);
public static extern FT_STATUS FT_Purge(FT_HANDLE handle, FT_PURGE mask);
public static extern FT_STATUS FT_Write(FT_HANDLE handle, byte[] buffer, uint bytesToWrite, out uint bytesWritten);
public static extern FT_STATUS FT_SetTimeouts(FT_HANDLE handle, uint readTimeout, uint writeTimeout);
public static extern FT_STATUS FT_SetFlowControl(FT_HANDLE handle, FT_FLOW_CONTROL flowControl, byte xon, byte xoff);