/// <summary> /// CBUSの設定を変更する /// </summary> /// <param name="configs"></param> public void SetCBusConfig(CBUSConfig configs) { if (!IsOpen()) { throw new InvalidOperationException("Connection is not opened yet."); } // EEPROM読込み eeprom = new FT232R_EEPROM_STRUCTURE(); FT_STATUS ret = ftdi.ReadFT232REEPROM(eeprom); if (ret != FT_STATUS.FT_OK) { throw new InvalidOperationException("Failed to read EEPROM. FT_STATUS=" + ret); } // 設定が異なる場合のみ、EEPROMに書き込み if (eeprom.Cbus0 != configs.cbus0 || eeprom.Cbus1 != configs.cbus1 || eeprom.Cbus2 != configs.cbus2 || eeprom.Cbus3 != configs.cbus3) { eeprom.Cbus0 = configs.cbus0; eeprom.Cbus1 = configs.cbus1; eeprom.Cbus2 = configs.cbus2; eeprom.Cbus3 = configs.cbus3; ret = ftdi.WriteFT232REEPROM(eeprom); if (ret != FT_STATUS.FT_OK) { throw new InvalidOperationException("Failed to write EEPROM. FT_STATUS=" + ret); } } }
//************************************************************************** // WriteFT232REEPROM //************************************************************************** // Intellisense comments /// <summary> /// Writes the specified values to the EEPROM of an FT232R or FT245R device. /// Calls FT_EE_Program in FTD2XX DLL /// </summary> /// <returns>FT_STATUS value from FT_EE_Program in FTD2XX DLL</returns> /// <param name="ee232r">The EEPROM settings to be written to the device</param> /// <remarks>If the strings are too long, they will be truncated to their maximum permitted lengths</remarks> /// <exception cref="FT_EXCEPTION">Thrown when the current device does not match the type required by this method.</exception> public FT_STATUS WriteFT232REEPROM(FT232R_EEPROM_STRUCTURE ee232r) { // Initialise ftStatus to something other than FT_OK FT_STATUS ftStatus = FT_STATUS.FT_OTHER_ERROR; FT_ERROR ftErrorCondition = FT_ERROR.FT_NO_ERROR; // If the DLL hasn't been loaded, just return here if (hFTD2XXDLL == IntPtr.Zero) return ftStatus; // Check for our required function pointers being set up if (pFT_EE_Program != IntPtr.Zero) { tFT_EE_Program FT_EE_Program = (tFT_EE_Program)Marshal.GetDelegateForFunctionPointer(pFT_EE_Program, typeof(tFT_EE_Program)); if (ftHandle != IntPtr.Zero) { FT_DEVICE DeviceType = FT_DEVICE.FT_DEVICE_UNKNOWN; // Check that it is an FT232R or FT245R that we are trying to write GetDeviceType(ref DeviceType); if (DeviceType != FT_DEVICE.FT_DEVICE_232R) { // If it is not, throw an exception ftErrorCondition = FT_ERROR.FT_INCORRECT_DEVICE; ErrorHandler(ftStatus, ftErrorCondition); } // Check for VID and PID of 0x0000 if ((ee232r.VendorID == 0x0000) | (ee232r.ProductID == 0x0000)) { // Do not allow users to program the device with VID or PID of 0x0000 return FT_STATUS.FT_INVALID_PARAMETER; } FT_PROGRAM_DATA eedata = new FT_PROGRAM_DATA(); // Set up structure headers eedata.Signature1 = 0x00000000; eedata.Signature2 = 0xFFFFFFFF; eedata.Version = 2; // Allocate space from unmanaged heap eedata.Manufacturer = Marshal.AllocHGlobal(32); eedata.ManufacturerID = Marshal.AllocHGlobal(16); eedata.Description = Marshal.AllocHGlobal(64); eedata.SerialNumber = Marshal.AllocHGlobal(16); // Check lengths of strings to make sure that they are within our limits // If not, trim them to make them our maximum length if (ee232r.Manufacturer.Length > 32) ee232r.Manufacturer = ee232r.Manufacturer.Substring(0, 32); if (ee232r.ManufacturerID.Length > 16) ee232r.ManufacturerID = ee232r.ManufacturerID.Substring(0, 16); if (ee232r.Description.Length > 64) ee232r.Description = ee232r.Description.Substring(0, 64); if (ee232r.SerialNumber.Length > 16) ee232r.SerialNumber = ee232r.SerialNumber.Substring(0, 16); // Set string values eedata.Manufacturer = Marshal.StringToHGlobalAnsi(ee232r.Manufacturer); eedata.ManufacturerID = Marshal.StringToHGlobalAnsi(ee232r.ManufacturerID); eedata.Description = Marshal.StringToHGlobalAnsi(ee232r.Description); eedata.SerialNumber = Marshal.StringToHGlobalAnsi(ee232r.SerialNumber); // Map non-string elements to structure // Standard elements eedata.VendorID = ee232r.VendorID; eedata.ProductID = ee232r.ProductID; eedata.MaxPower = ee232r.MaxPower; eedata.SelfPowered = Convert.ToUInt16(ee232r.SelfPowered); eedata.RemoteWakeup = Convert.ToUInt16(ee232r.RemoteWakeup); // 232R specific fields eedata.PullDownEnableR = Convert.ToByte(ee232r.PullDownEnable); eedata.SerNumEnableR = Convert.ToByte(ee232r.SerNumEnable); eedata.UseExtOsc = Convert.ToByte(ee232r.UseExtOsc); eedata.HighDriveIOs = Convert.ToByte(ee232r.HighDriveIOs); // Override any endpoint size the user has selected and force 64 bytes // Some users have been known to wreck devices by setting 0 here... eedata.EndpointSize = 64; eedata.PullDownEnableR = Convert.ToByte(ee232r.PullDownEnable); eedata.SerNumEnableR = Convert.ToByte(ee232r.SerNumEnable); eedata.InvertTXD = Convert.ToByte(ee232r.InvertTXD); eedata.InvertRXD = Convert.ToByte(ee232r.InvertRXD); eedata.InvertRTS = Convert.ToByte(ee232r.InvertRTS); eedata.InvertCTS = Convert.ToByte(ee232r.InvertCTS); eedata.InvertDTR = Convert.ToByte(ee232r.InvertDTR); eedata.InvertDSR = Convert.ToByte(ee232r.InvertDSR); eedata.InvertDCD = Convert.ToByte(ee232r.InvertDCD); eedata.InvertRI = Convert.ToByte(ee232r.InvertRI); eedata.Cbus0 = ee232r.Cbus0; eedata.Cbus1 = ee232r.Cbus1; eedata.Cbus2 = ee232r.Cbus2; eedata.Cbus3 = ee232r.Cbus3; eedata.Cbus4 = ee232r.Cbus4; eedata.RIsD2XX = Convert.ToByte(ee232r.RIsD2XX); // Call FT_EE_Program ftStatus = FT_EE_Program(ftHandle, eedata); // Free unmanaged buffers Marshal.FreeHGlobal(eedata.Manufacturer); Marshal.FreeHGlobal(eedata.ManufacturerID); Marshal.FreeHGlobal(eedata.Description); Marshal.FreeHGlobal(eedata.SerialNumber); } } else { if (pFT_EE_Program == IntPtr.Zero) { MessageBox.Show("Failed to load function FT_EE_Program."); } } return ftStatus; }
//************************************************************************** // ReadFT232REEPROM //************************************************************************** // Intellisense comments /// <summary> /// Reads the EEPROM contents of an FT232R or FT245R device. /// Calls FT_EE_Read in FTD2XX DLL /// </summary> /// <returns>An FT232R_EEPROM_STRUCTURE which contains only the relevant information for an FT232R and FT245R device.</returns> /// <exception cref="FT_EXCEPTION">Thrown when the current device does not match the type required by this method.</exception> public FT_STATUS ReadFT232REEPROM(FT232R_EEPROM_STRUCTURE ee232r) { // Initialise ftStatus to something other than FT_OK FT_STATUS ftStatus = FT_STATUS.FT_OTHER_ERROR; FT_ERROR ftErrorCondition = FT_ERROR.FT_NO_ERROR; // If the DLL hasn't been loaded, just return here if (hFTD2XXDLL == IntPtr.Zero) return ftStatus; // Check for our required function pointers being set up if (pFT_EE_Read != IntPtr.Zero) { tFT_EE_Read FT_EE_Read = (tFT_EE_Read)Marshal.GetDelegateForFunctionPointer(pFT_EE_Read, typeof(tFT_EE_Read)); if (ftHandle != IntPtr.Zero) { FT_DEVICE DeviceType = FT_DEVICE.FT_DEVICE_UNKNOWN; // Check that it is an FT232R or FT245R that we are trying to read GetDeviceType(ref DeviceType); if (DeviceType != FT_DEVICE.FT_DEVICE_232R) { // If it is not, throw an exception ftErrorCondition = FT_ERROR.FT_INCORRECT_DEVICE; ErrorHandler(ftStatus, ftErrorCondition); } FT_PROGRAM_DATA eedata = new FT_PROGRAM_DATA(); // Set up structure headers eedata.Signature1 = 0x00000000; eedata.Signature2 = 0xFFFFFFFF; eedata.Version = 2; // Allocate space from unmanaged heap eedata.Manufacturer = Marshal.AllocHGlobal(32); eedata.ManufacturerID = Marshal.AllocHGlobal(16); eedata.Description = Marshal.AllocHGlobal(64); eedata.SerialNumber = Marshal.AllocHGlobal(16); // Call FT_EE_Read ftStatus = FT_EE_Read(ftHandle, eedata); // Retrieve string values ee232r.Manufacturer = Marshal.PtrToStringAnsi(eedata.Manufacturer); ee232r.ManufacturerID = Marshal.PtrToStringAnsi(eedata.ManufacturerID); ee232r.Description = Marshal.PtrToStringAnsi(eedata.Description); ee232r.SerialNumber = Marshal.PtrToStringAnsi(eedata.SerialNumber); // Free unmanaged buffers Marshal.FreeHGlobal(eedata.Manufacturer); Marshal.FreeHGlobal(eedata.ManufacturerID); Marshal.FreeHGlobal(eedata.Description); Marshal.FreeHGlobal(eedata.SerialNumber); // Map non-string elements to structure to be returned // Standard elements ee232r.VendorID = eedata.VendorID; ee232r.ProductID = eedata.ProductID; ee232r.MaxPower = eedata.MaxPower; ee232r.SelfPowered = Convert.ToBoolean(eedata.SelfPowered); ee232r.RemoteWakeup = Convert.ToBoolean(eedata.RemoteWakeup); // 232R specific fields ee232r.UseExtOsc = Convert.ToBoolean(eedata.UseExtOsc); ee232r.HighDriveIOs = Convert.ToBoolean(eedata.HighDriveIOs); ee232r.EndpointSize = eedata.EndpointSize; ee232r.PullDownEnable = Convert.ToBoolean(eedata.PullDownEnableR); ee232r.SerNumEnable = Convert.ToBoolean(eedata.SerNumEnableR); ee232r.InvertTXD = Convert.ToBoolean(eedata.InvertTXD); ee232r.InvertRXD = Convert.ToBoolean(eedata.InvertRXD); ee232r.InvertRTS = Convert.ToBoolean(eedata.InvertRTS); ee232r.InvertCTS = Convert.ToBoolean(eedata.InvertCTS); ee232r.InvertDTR = Convert.ToBoolean(eedata.InvertDTR); ee232r.InvertDSR = Convert.ToBoolean(eedata.InvertDSR); ee232r.InvertDCD = Convert.ToBoolean(eedata.InvertDCD); ee232r.InvertRI = Convert.ToBoolean(eedata.InvertRI); ee232r.Cbus0 = eedata.Cbus0; ee232r.Cbus1 = eedata.Cbus1; ee232r.Cbus2 = eedata.Cbus2; ee232r.Cbus3 = eedata.Cbus3; ee232r.Cbus4 = eedata.Cbus4; ee232r.RIsD2XX = Convert.ToBoolean(eedata.RIsD2XX); } } else { if (pFT_EE_Read == IntPtr.Zero) { MessageBox.Show("Failed to load function FT_EE_Read."); } } return ftStatus; }