GetRxBytesAvailable() public method

Gets the number of bytes available in the receive buffer.
public GetRxBytesAvailable ( UInt32 &RxQueue ) : FT_STATUS
RxQueue System.UInt32 The number of bytes available to be read.
return FT_STATUS
		private void AttemptConnect()
		{
			connected = false;

			UInt32 DeviceCount = 0;
			FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OK;

			// Create new instance of the FTDI device class
			ftdi = new FTDI();

			// Determine the number of FTDI devices connected to the machine
			ftStatus = ftdi.GetNumberOfDevices( ref DeviceCount );

			// Check status
			if(ftStatus != FTDI.FT_STATUS.FT_OK || DeviceCount == 0)
			{
				commStat = CommStatus.NoDevice;
				return;
			}

			commStat = CommStatus.NoElev8;

			// Allocate storage for device info list
			FTDI.FT_DEVICE_INFO_NODE[] DeviceList = new FTDI.FT_DEVICE_INFO_NODE[DeviceCount];

			try
			{
				// Populate our device list
				ftStatus = ftdi.GetDeviceList( DeviceList );

				bool FoundElev8 = false;
				for(int i = 0; i < DeviceCount && FoundElev8 == false; i++)
				{
					if(DeviceList[i].Type != FTDI.FT_DEVICE.FT_DEVICE_X_SERIES) continue;

					for(int baud = 0; baud < 2; baud++)
					{
						ftStatus = ftdi.OpenBySerialNumber( DeviceList[i].SerialNumber );
						if(ftStatus == FTDI.FT_STATUS.FT_OK)
						{
							string portName;
							ftdi.GetCOMPort( out portName );
							if(portName == null || portName == "")
							{
								ftdi.Close();
								continue;
							}

							if(baud == 0) {
								ftdi.SetBaudRate( 115200 );	// try this first
							}
							else {
								ftdi.SetBaudRate( 57600 );	// then try this (xbee)
							}

							ftdi.SetDataCharacteristics( 8, 1, 0 );
							ftdi.SetFlowControl( FTDI.FT_FLOW_CONTROL.FT_FLOW_NONE, 0, 0 );


							txBuffer[0] = (byte)'E';
							txBuffer[1] = (byte)'l';
							txBuffer[2] = (byte)'v';
							txBuffer[3] = (byte)'8';
							uint written = 0;

							for(int j = 0; j < 10 && FoundElev8 == false && !quit; j++)	// Keep pinging until it replies, or we give up
							{
								ftdi.Write( txBuffer, 4, ref written );
								System.Threading.Thread.Sleep( 50 );

								uint bytesAvail = 0;
								ftdi.GetRxBytesAvailable( ref bytesAvail );				// How much data is available from the serial port?
								if(bytesAvail > 0)
								{
									int TestVal = 0;

									while(bytesAvail > 0 && !quit)
									{
										uint bytesRead = 0;
										ftdi.Read( rxBuffer, 1, ref bytesRead );
										if(bytesRead == 1)
										{
											TestVal = (TestVal << 8) | rxBuffer[0];
											if(TestVal == (int)(('E' << 0) | ('l' << 8) | ('v' << 16) | ('8' << 24)) )
											{
												FoundElev8 = true;
												commStat = CommStatus.Connected;
												break;
											}
										}

										if(bytesRead == 0) break;
									}
								}
							}

							if(FoundElev8)
							{
								connected = true;
								if(ConnectionStarted != null) {
									ConnectionStarted();
								}
								break;
							}
							else
							{
								ftdi.Close();
							}
						}
					}
				}
			}

			catch(Exception)
			{
				return;
			}
		}
		private void AttemptConnect()
		{
			connected = false;

			UInt32 DeviceCount = 0;
			FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OK;

			// Create new instance of the FTDI device class
			ftdi = new FTDI();

			// Determine the number of FTDI devices connected to the machine
			ftStatus = ftdi.GetNumberOfDevices( ref DeviceCount );

			// Check status
			if(ftStatus != FTDI.FT_STATUS.FT_OK || DeviceCount == 0)
			{
				commStat = CommStatus.NoDevice;
				return;
			}

			commStat = CommStatus.NoElev8;

			// Allocate storage for device info list
			FTDI.FT_DEVICE_INFO_NODE[] DeviceList = new FTDI.FT_DEVICE_INFO_NODE[DeviceCount];

			try
			{
				// Populate our device list
				ftStatus = ftdi.GetDeviceList( DeviceList );

				bool FoundElev8 = false;
				for(int i = 0; i < DeviceCount && FoundElev8 == false; i++)
				{
					if(DeviceList[i].Type != FTDI.FT_DEVICE.FT_DEVICE_X_SERIES) continue;

					ftStatus = ftdi.OpenBySerialNumber( DeviceList[i].SerialNumber );
					if(ftStatus == FTDI.FT_STATUS.FT_OK)
					{
						string portName;
						ftdi.GetCOMPort( out portName );
						if(portName == null || portName == "")
						{
							ftdi.Close();
							continue;
						}

						ftdi.SetBaudRate( 115200 );
						ftdi.SetDataCharacteristics( 8, 1, 0 );
						ftdi.SetFlowControl( FTDI.FT_FLOW_CONTROL.FT_FLOW_NONE, 0, 0 );


						txBuffer[0] = (byte)0;		// Set it to MODE_None to stop it writing (reset in case it was disconnected)
						txBuffer[1] = (byte)0xff;	// Send 0xff to the Prop to see if it replies
						uint written = 0;

						for(int j = 0; j < 10 && FoundElev8 == false; j++)	// Keep pinging until it replies, or we give up
						{
							ftdi.Write( txBuffer, 2, ref written );
							System.Threading.Thread.Sleep( 50 );

							uint bytesAvail = 0;
							ftdi.GetRxBytesAvailable( ref bytesAvail );				// How much data is available from the serial port?
							if(bytesAvail > 0)
							{
								uint bytesRead = 0;
								ftdi.Read( rxBuffer, 1, ref bytesRead );			// If it comes back with 0xE8 it's the one we want
								if(bytesRead == 1 && rxBuffer[0] == 0xE8)
								{
									FoundElev8 = true;
									commStat = CommStatus.Connected;
									break;
								}
							}
						}

						if(FoundElev8) {
							connected = true;
							txBuffer[0] = 2;	// MODE_Sensors
							written = 0;
							ftdi.Write( txBuffer, 1, ref written );

							if(ConnectionStarted != null) {
								ConnectionStarted();
							}
							break;
						}
						else {
							ftdi.Close();
						}
					}
				}
			}

			catch(Exception)
			{
				return;
			}
		}
Example #3
0
        static void Main(string[] args)
        {
            string deviceSerialNumber = "33VRWQARA";
            FTDI.FT_STATUS status = new FTDI.FT_STATUS();
            FTDI device = new FTDI();
            UInt32 numberOfDevices = 0;
            int sleepTime = 100;

            status = device.GetNumberOfDevices(ref numberOfDevices);
            FTDI.FT_DEVICE_INFO_NODE[] devicelist = new FTDI.FT_DEVICE_INFO_NODE[numberOfDevices];
            status = device.GetDeviceList(devicelist);
            Thread.Sleep(sleepTime);
            if (status == FTDI.FT_STATUS.FT_OK)
                Console.WriteLine("We have {0} devices", numberOfDevices);
            else
                Console.WriteLine("Failed to get number of devices");

            status = device.OpenBySerialNumber(deviceSerialNumber);
            Thread.Sleep(sleepTime);
            if(status == FTDI.FT_STATUS.FT_OK)
                Console.WriteLine("Device {0} is opened", deviceSerialNumber);
            else
                Console.WriteLine("Failed to open {0} device", deviceSerialNumber);

            status = device.SetBitMode(0xff, FTDI.FT_BIT_MODES.FT_BIT_MODE_RESET);
            Thread.Sleep(sleepTime);
            if (status == FTDI.FT_STATUS.FT_OK)
                Console.WriteLine("BitMode is resetted");
            else
                Console.WriteLine("Failed to reset BitMode");

            status = device.SetBitMode(0xff, FTDI.FT_BIT_MODES.FT_BIT_MODE_SYNC_FIFO);
            Thread.Sleep(sleepTime);
            if (status == FTDI.FT_STATUS.FT_OK)
                Console.WriteLine("BitMode is {0}", FTDI.FT_BIT_MODES.FT_BIT_MODE_SYNC_FIFO);
            else
                Console.WriteLine("Failed to set BitMode");

            byte latency = 2;
            device.SetLatency(latency);
            Thread.Sleep(sleepTime);
            if (status == FTDI.FT_STATUS.FT_OK)
                Console.WriteLine("Latency timer value is {0}", latency);
            else
                Console.WriteLine("Failed to set latency");

            uint inTransferSize = 0x10000;
            device.InTransferSize(inTransferSize);
            Thread.Sleep(sleepTime);
            if (status == FTDI.FT_STATUS.FT_OK)
                Console.WriteLine("inTransferSize value is {0}", inTransferSize);
            else
                Console.WriteLine("Failed to set inTransferSize");

            device.SetFlowControl(FTDI.FT_FLOW_CONTROL.FT_FLOW_RTS_CTS, 0x00, 0x00);
            Thread.Sleep(sleepTime);
            if (status == FTDI.FT_STATUS.FT_OK)
                Console.WriteLine("FlowControl is {0}", FTDI.FT_FLOW_CONTROL.FT_FLOW_RTS_CTS);
            else
                Console.WriteLine("Failed to set FlowControl");

            device.Purge(FTDI.FT_PURGE.FT_PURGE_RX);

            uint numBytes = 0;
            //int cycles = 0;
            using(FileStream fs = new FileStream(fileName, FileMode.Create, FileAccess.Write, FileShare.None))
            {
                using (BinaryWriter bw = new BinaryWriter(fs))
                {
                    while (Console.KeyAvailable == false)
                    {
                        device.GetRxBytesAvailable(ref numBytes);
                        if (numBytes >= 1)
                        {
                            //cycles++;
                            byte[] bBuf = new byte[numBytes];
                            device.Read(bBuf, numBytes, ref numBytes);
                            bw.Write(bBuf);

                            //if (cycles == 1)
                            //{
                            //    cycles = 0;
                            //    Console.WriteLine("{0}", bBuf.Length);
                            //}
                        }
                        if (numBytes >= 0x10000)
                        {
                            Console.WriteLine("Buffer overload!");
                        }
                    }

                    //Console.WriteLine("Press 'p' to erase control bytes, 'q' to quite");
                    //ConsoleKeyInfo cki = Console.ReadKey(false);
                    //if (cki.Key == ConsoleKey.Q)
                    //    Environment.Exit(-1);
                    //if (cki.Key == ConsoleKey.P)
                    //{

                    //}
                }
            }
            Console.WriteLine("Key is pressed, end of file writting");
        }
Example #4
0
        static void open(FTDI myFtdiDevice)
        {
            UInt32 ftdiDeviceCount = 0;
            FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OK;

            // Determine the number of FTDI devices connected to the machine
            ftStatus = myFtdiDevice.GetNumberOfDevices(ref ftdiDeviceCount);
            // Check status
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                return;
            }


            // If no devices available, return
            if (ftdiDeviceCount == 0) return;

            Console.WriteLine("Number of FTDI devices: " + ftdiDeviceCount.ToString());


            // Allocate storage for device info list
            FTDI.FT_DEVICE_INFO_NODE[] ftdiDeviceList = new FTDI.FT_DEVICE_INFO_NODE[ftdiDeviceCount];

            // Populate our device list
            ftStatus = myFtdiDevice.GetDeviceList(ftdiDeviceList);

            int oIdx=-1;
            if (ftStatus == FTDI.FT_STATUS.FT_OK)
            {
                for (Int32 i = 0; i < ftdiDeviceCount; i++)
                {
                    if (ftdiDeviceList[i].Type == FTDI.FT_DEVICE.FT_DEVICE_232R)
                    {
                        oIdx = i;
                    }
                }

                if (oIdx < 0)
                {
                    Console.WriteLine("no matching device");
                    return;
                }
            }

            Console.WriteLine("Device Index: " + oIdx.ToString());
            Console.WriteLine("Flags: " + String.Format("{0:x}", ftdiDeviceList[oIdx].Flags));
            Console.WriteLine("Type: " + ftdiDeviceList[oIdx].Type.ToString());
            Console.WriteLine("ID: " + String.Format("{0:x}", ftdiDeviceList[oIdx].ID));
            Console.WriteLine("Location ID: " + String.Format("{0:x}", ftdiDeviceList[oIdx].LocId));
            Console.WriteLine("Serial Number: " + ftdiDeviceList[oIdx].SerialNumber.ToString());
            Console.WriteLine("Description: " + ftdiDeviceList[oIdx].Description.ToString());

            myFtdiDevice.SetDTR(false);
            myFtdiDevice.SetRTS(false);

            // Open first device in our list by serial number
            ftStatus = myFtdiDevice.OpenBySerialNumber(ftdiDeviceList[oIdx].SerialNumber);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to open device (error " + ftStatus.ToString() + ")");
                //Console.ReadKey();
                return;
            }

            myFtdiDevice.SetDTR(false);
            myFtdiDevice.SetRTS(false);

            // Set up device data parameters
            uint baud = 230400;
            if (ConfigurationManager.AppSettings["BaudRate"] != null)
            {
                baud = UInt32.Parse(ConfigurationManager.AppSettings["BaudRate"]);
            }
            ftStatus = myFtdiDevice.SetBaudRate(baud);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to set Baud rate (error " + ftStatus.ToString() + ")");
                //Console.ReadKey();
                return;
            }

            // Set data characteristics - Data bits, Stop bits, Parity
            ftStatus = myFtdiDevice.SetDataCharacteristics(FTDI.FT_DATA_BITS.FT_BITS_8, FTDI.FT_STOP_BITS.FT_STOP_BITS_1, FTDI.FT_PARITY.FT_PARITY_NONE);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to set data characteristics (error " + ftStatus.ToString() + ")");
                //Console.ReadKey();
                return;
            }

            // Set flow control - set RTS/CTS flow control
            ftStatus = myFtdiDevice.SetFlowControl(FTDI.FT_FLOW_CONTROL.FT_FLOW_NONE, 0x11, 0x13);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to set flow control (error " + ftStatus.ToString() + ")");
                //Console.ReadKey();
                return;
            }

            // times out at 100ms
            ftStatus = myFtdiDevice.SetTimeouts(100, 100);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to set timeouts (error " + ftStatus.ToString() + ")");
                //Console.ReadKey();
                return;
            }

            attention();
            Console.WriteLine("CONNECTED. PRESS ANY KEY TO START.");
            Console.WriteLine("CTRL-R: RESET");
            Console.WriteLine("CTRL-P: PROGRAM");
            Console.WriteLine("CTRL-T: SET TIME");
            prompt();

            myFtdiDevice.SetDTR(true);
            Thread.Sleep(100);
            myFtdiDevice.SetDTR(false);

            while (true)
            {
                UInt32 numBytes = 0;
                byte[] buf = new byte[1024];

                while (Console.KeyAvailable)
                {
                    ConsoleKeyInfo cki = Console.ReadKey(true);
                    //Console.WriteLine("{0} (character '{1}')", cki.Key, cki.KeyChar);
                    if ((cki.Modifiers & ConsoleModifiers.Control) != 0)
                    {
                        if (cki.Key.ToString().ToUpper().EndsWith("R"))
                        {
                            attention();
                            Console.WriteLine("\nRESET!");
                            prompt();

                            myFtdiDevice.SetRTS(false);
                            myFtdiDevice.SetDTR(true);
                            Thread.Sleep(100);
                            myFtdiDevice.SetDTR(false);
                            continue;
                        }
                        if (cki.Key.ToString().ToUpper().EndsWith("P"))
                        {
                            attention();

                            Console.WriteLine("\nPROGRAM MODE:");
                            myFtdiDevice.Close();
                            program();

                            string firmwareName = ConfigurationManager.AppSettings["FirmwareName"];
                            LpcProgrammer p = new LpcProgrammer(new StringOutDelegate(myStrDelegate));
                            //p.Prepare();
                            int r = p.Program(firmwareName);

                            attention();
                            Console.WriteLine("\nRETURN VALUE: {0}", r);
                            subdue();

                            throw new Exception("Leaving program mode");
                        }
                        if (cki.Key.ToString().ToUpper().EndsWith("T"))
                        {
                            //  Time: 10:11:0
                            //  Date: 2827.5.9
                            string datePatt = @"yyyy.M.d";
                            string timePatt = @"HH:mm:ss";
                            DateTime dispDt = DateTime.Now;
                            string dtString = "set_date " + dispDt.ToString(datePatt) + "\r";
                            string tmString = "set_time " + dispDt.ToString(timePatt) + "\r";
                            //Console.WriteLine(dtString);
                            //Console.WriteLine(tmString);
                            System.Text.ASCIIEncoding ASCII  = new System.Text.ASCIIEncoding();
                            Byte[] cmdBytes = ASCII.GetBytes(dtString);
                            myFtdiDevice.Write(cmdBytes, cmdBytes.Length, ref numBytes);
                            Thread.Sleep(200);
                            cmdBytes = ASCII.GetBytes(tmString);
                            myFtdiDevice.Write(cmdBytes, cmdBytes.Length, ref numBytes);
                            continue;
                        }
                    }
                    buf[0] = (byte)(cki.KeyChar & 0xff);
                  
                    numBytes = 0;
                    ftStatus = myFtdiDevice.Write(buf, 1, ref numBytes);
                    if (ftStatus != FTDI.FT_STATUS.FT_OK)
                    {
                        throw new Exception("Failed to write to device (error " + ftStatus.ToString() + ")");
                        //return;
                    }
                }

                numBytes = 0;
                ftStatus = myFtdiDevice.GetRxBytesAvailable(ref numBytes);
                if (ftStatus != FTDI.FT_STATUS.FT_OK)
                {
                    throw new Exception("Failed to get number of bytes available to read (error " + ftStatus.ToString() + ")");
                    //return;
                }
                if (numBytes > 0)
                {
                    UInt32 numBytesRead = 0;
                    byte[] buffer = new byte[1024];
                    // Note that the Read method is overloaded, so can read string or byte array data
                    //ftStatus = myFtdiDevice.Read(out readData, 1024, ref numBytesRead);
                    ftStatus = myFtdiDevice.Read(buffer, 1024, ref numBytesRead);
                    if (ftStatus != FTDI.FT_STATUS.FT_OK)
                    {
                        // Wait for a key press
                        throw new Exception("Failed to read data (error " + ftStatus.ToString() + ")");
                        //Console.ReadKey();
                        //return;
                    }
                    string readData = System.Text.Encoding.ASCII.GetString(buffer, 0, (int)numBytesRead);
                    Console.Write(readData);
                }
                else
                {
                    Thread.Sleep(10);
                }

            }
        }
Example #5
0
        // public methods
        /// <summary>
        /// Attempt to open RHA2000-EVAL board connected to USB port.
        /// </summary>
        /// <param name="firmwareID1">Board ID number (1 of 3)</param>
        /// <param name="firmwareID2">Board ID number (2 of 3)</param>
        /// <param name="firmwareID3">Board ID number (3 of 3)</param>
        public void Open(ref int firmwareID1, ref int firmwareID2, ref int firmwareID3)
        {
            // Open FTDI USB device.
            UInt32 ftdiDeviceCount = 0;
            FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OK;

            // Create new instance of the FTDI device class.
            myFtdiDeviceA = new FTDI();

            // Determine the number of FTDI devices connected to the machine.
            ftStatus = myFtdiDeviceA.GetNumberOfDevices(ref ftdiDeviceCount);

            // Check status.
            if (!(ftStatus == FTDI.FT_STATUS.FT_OK))
            {
                UsbException e = new UsbException("USB Setup Error: Failed to get number devices");
                throw e;
            }

            // If no devices available, return.
            if (ftdiDeviceCount == 0)
            {
                UsbException e = new UsbException("No valid USB devices detected");
                throw e;
            }

            // Allocate storage for device info list.
            FTDI.FT_DEVICE_INFO_NODE[] ftdiDeviceList = new FTDI.FT_DEVICE_INFO_NODE[ftdiDeviceCount];

            // Populate our device list.
            ftStatus = myFtdiDeviceA.GetDeviceList(ftdiDeviceList);
            // There could be a status error here, but we're not checking for it...

            // The Intan Technologies RHA2000-EVAL board uses an FTDI FT2232H chip to provide a USB
            // interface to a PC.  Detailed information on this chip may be found at:
            //
            //   http://www.ftdichip.com/Products/ICs/FT2232H.htm
            //
            // The FT2232H supports two independent FIFO channels.  The channel used by the RHA2000-EVAL
            // board is factory-configured with the name "Intan I/O board 1.0 A".  (FTDI provides software
            // routines to open device by its name.)

            ftStatus = myFtdiDeviceA.OpenByDescription("Intan I/O Board 1.0 A");
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                UsbException e = new UsbException("Intan USB device A not found");
                throw e;
            }

            // Set read timeout to 5 seconds, write timeout to infinite
            ftStatus = myFtdiDeviceA.SetTimeouts(5000, 0);
            // There could be status error here, but we're not checking for it...

            this.Stop();

            // Purge receive buffer

            myFtdiDeviceA.Purge(FTDI.FT_PURGE.FT_PURGE_RX);

            // Check board ID and version number
            //
            // The RHA2000-EVAL board is controlled by sending one-byte ASCII command characters over
            // the USB interface.  The 'I' character commands the board to return a 3-byte ID/version
            // number.

            UInt32 numBytesWritten = 0;
            Byte[] myChars = { 73 };   // 'I' = request board ID and version number

            ftStatus = myFtdiDeviceA.Write(myChars, 1, ref numBytesWritten);

            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                UsbException e = new UsbException("Could not write to Intan USB device");
                throw e;
            }

            const UInt32 numBytesToRead = 3;

            // Wait until the desired number of bytes have been received.
            UInt32 numBytesAvailable = 0;

            while (numBytesAvailable < numBytesToRead)
            {
                ftStatus = myFtdiDeviceA.GetRxBytesAvailable(ref numBytesAvailable);

                if (ftStatus != FTDI.FT_STATUS.FT_OK)
                {
                    UsbException e = new UsbException("Failed to get number of USB bytes available to read");
                    throw e;
                }
            }

            // Now that we have the amount of data we want available, read it.

            UInt32 numBytesRead = 0;

            ftStatus = myFtdiDeviceA.Read(readDataBufferA, numBytesToRead, ref numBytesRead);

            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                UsbException e = new UsbException("USB read error");
                throw e;
            }

            firmwareID1 = Convert.ToInt32(readDataBufferA[0]);
            firmwareID2 = Convert.ToInt32(readDataBufferA[1]);
            firmwareID3 = Convert.ToInt32(readDataBufferA[2]);

            Debug.WriteLine("Board ID: " + readDataBufferA[0] + " " + (Convert.ToInt32(readDataBufferA[1])).ToString() + " " + (Convert.ToInt32(readDataBufferA[2])).ToString());

            this.ZCheckOff();
            this.SettleOff();

            // Purge receive buffer.
            myFtdiDeviceA.Purge(FTDI.FT_PURGE.FT_PURGE_RX);

            dataJustStarted = true;
        }
Example #6
0
        static void Main(string[] args)
        {
            UInt32 ftdiDeviceCount = 0;
            FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OK;

            // Create new instance of the FTDI device class
            FTDI myFtdiDevice = new FTDI();

            // Determine the number of FTDI devices connected to the machine
            ftStatus = myFtdiDevice.GetNumberOfDevices(ref ftdiDeviceCount);
            // Check status
            if (ftStatus == FTDI.FT_STATUS.FT_OK)
            {
                Console.WriteLine("Number of FTDI devices: " + ftdiDeviceCount.ToString());
                Console.WriteLine("");
            }
            else
            {
                // Wait for a key press
                Console.WriteLine("Failed to get number of devices (error " + ftStatus.ToString() + ")");
                Console.ReadKey();
                return;
            }

            // If no devices available, return
            if (ftdiDeviceCount == 0)
            {
                // Wait for a key press
                Console.WriteLine("Failed to get number of devices (error " + ftStatus.ToString() + ")");
                Console.ReadKey();
                return;
            }

            // Allocate storage for device info list
            FTDI.FT_DEVICE_INFO_NODE[] ftdiDeviceList = new FTDI.FT_DEVICE_INFO_NODE[ftdiDeviceCount];

            // Populate our device list
            ftStatus = myFtdiDevice.GetDeviceList(ftdiDeviceList);

            if (ftStatus == FTDI.FT_STATUS.FT_OK)
            {
                for (UInt32 i = 0; i < ftdiDeviceCount; i++)
                {
                    Console.WriteLine("Device Index: " + i.ToString());
                    Console.WriteLine("Flags: " + String.Format("{0:x}", ftdiDeviceList[i].Flags));
                    Console.WriteLine("Type: " + ftdiDeviceList[i].Type.ToString());
                    Console.WriteLine("ID: " + String.Format("{0:x}", ftdiDeviceList[i].ID));
                    Console.WriteLine("Location ID: " + String.Format("{0:x}", ftdiDeviceList[i].LocId));
                    Console.WriteLine("Serial Number: " + ftdiDeviceList[i].SerialNumber.ToString());
                    Console.WriteLine("Description: " + ftdiDeviceList[i].Description.ToString());
                    Console.WriteLine("");
                }
            }

            // Open first device in our list by serial number
            ftStatus = myFtdiDevice.OpenBySerialNumber(ftdiDeviceList[1].SerialNumber);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to open device (error " + ftStatus.ToString() + ")");
                Console.ReadKey();
                return;
            }

            // Set up device data parameters
            // Set Baud rate to 9600
            ftStatus = myFtdiDevice.SetBaudRate(9600);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to set Baud rate (error " + ftStatus.ToString() + ")");
                Console.ReadKey();
                return;
            }

            // Set data characteristics - Data bits, Stop bits, Parity
            ftStatus = myFtdiDevice.SetDataCharacteristics(FTDI.FT_DATA_BITS.FT_BITS_8, FTDI.FT_STOP_BITS.FT_STOP_BITS_1, FTDI.FT_PARITY.FT_PARITY_NONE);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to set data characteristics (error " + ftStatus.ToString() + ")");
                Console.ReadKey();
                return;
            }

            // Set flow control - set RTS/CTS flow control

            ftStatus = myFtdiDevice.SetFlowControl(FTDI.FT_FLOW_CONTROL.FT_FLOW_NONE,0,0);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to set flow control (error " + ftStatus.ToString() + ")");
                Console.ReadKey();
                return;
            }

            // Set read timeout to 5 seconds, write timeout to infinite
            ftStatus = myFtdiDevice.SetTimeouts(5000, 0);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to set timeouts (error " + ftStatus.ToString() + ")");
                Console.ReadKey();
                return;
            }

            // Perform loop back - make sure loop back connector is fitted to the device
            // Write string data to the device
            string dataToWrite = "Hello world!";
            UInt32 numBytesWritten = 0;
            // Note that the Write method is overloaded, so can write string or byte array data
            ftStatus = myFtdiDevice.Write(dataToWrite, dataToWrite.Length, ref numBytesWritten);

            myFtdiDevice.Purge(FTDI.FT_PURGE.FT_PURGE_TX);
            if (numBytesWritten != dataToWrite.Length)
            {
                Console.WriteLine("Error writting");
                Console.Read();
                return;
            }

            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to write to device (error " + ftStatus.ToString() + ")");
                Console.ReadKey();
                return;
            }

            // Check the amount of data available to read
            // In this case we know how much data we are expecting,
            // so wait until we have all of the bytes we have sent.
            UInt32 numBytesAvailable = 0;
            do
            {

                ftStatus = myFtdiDevice.GetRxBytesAvailable(ref numBytesAvailable);
                //Console.WriteLine(ftStatus + " " + numBytesAvailable);
                if (ftStatus != FTDI.FT_STATUS.FT_OK)
                {
                    // Wait for a key press
                    Console.WriteLine("Failed to get number of bytes available to read (error " + ftStatus.ToString() + ")");
                    Console.ReadKey();
                    return;
                }
                Thread.Sleep(10);
            } while (numBytesAvailable < dataToWrite.Length);

            // Now that we have the amount of data we want available, read it
            string readData;
            UInt32 numBytesRead = 0;
            // Note that the Read method is overloaded, so can read string or byte array data
            ftStatus = myFtdiDevice.Read(out readData, numBytesAvailable, ref numBytesRead);
            if (ftStatus != FTDI.FT_STATUS.FT_OK)
            {
                // Wait for a key press
                Console.WriteLine("Failed to read data (error " + ftStatus.ToString() + ")");
                Console.ReadKey();
                return;
            }
            Console.WriteLine(readData);

            // Close our device
            ftStatus = myFtdiDevice.Close();

            // Wait for a key press
            Console.WriteLine("Press any key to continue.");
            Console.ReadKey();
            return;
        }
Example #7
0
		void ConnectFTDI()
		{
			UInt32 DeviceCount = 0;
			FTDI.FT_STATUS ftStatus = FTDI.FT_STATUS.FT_OK;

			// Create new instance of the FTDI device class
			ftdi = new FTDI();

			// Determine the number of FTDI devices connected to the machine
			ftStatus = ftdi.GetNumberOfDevices( ref DeviceCount );

			// Check status
			if(ftStatus != FTDI.FT_STATUS.FT_OK || DeviceCount == 0) {
				commStat = CommStatus.NoDevices;
				return;
			}

			commStat = CommStatus.NoElev8;

			// Allocate storage for device info list
			FTDI.FT_DEVICE_INFO_NODE[] DeviceList = new FTDI.FT_DEVICE_INFO_NODE[DeviceCount];

			try
			{
				// Populate our device list
				ftStatus = ftdi.GetDeviceList( DeviceList );

				bool FoundElev8 = false;
				for(int i = 0; i < DeviceCount && FoundElev8 == false; i++)
				{
					if(DeviceList[i].Type != FTDI.FT_DEVICE.FT_DEVICE_X_SERIES) continue;

					ftStatus = ftdi.OpenBySerialNumber( DeviceList[i].SerialNumber );
					if(ftStatus == FTDI.FT_STATUS.FT_OK)
					{
						string portName;
						ftdi.GetCOMPort( out portName );
						if(portName == null || portName == "")
						{
							ftdi.Close();
							continue;
						}

						ftdi.SetBaudRate( 115200 );
						ftdi.SetDataCharacteristics( 8, 1, 0 );
						ftdi.SetFlowControl( FTDI.FT_FLOW_CONTROL.FT_FLOW_NONE, 0, 0 );


						txBuffer[0] = (byte)0xff;	// Send 0xff to the Prop to see if it replies
						uint written = 0;

						for(int j = 0; j < 10 && FoundElev8 == false; j++)	// Keep pinging until it replies, or we give up
						{
							ftdi.Write( txBuffer, 1, ref written );
							System.Threading.Thread.Sleep( 50 );

							uint bytesAvail = 0;
							ftdi.GetRxBytesAvailable( ref bytesAvail );				// How much data is available from the serial port?
							if(bytesAvail > 0)
							{
								uint bytesRead = 0;
								ftdi.Read( rxBuffer, 1, ref bytesRead );			// If it comes back with 0xE8 it's the one we want
								if(bytesRead == 1 && rxBuffer[0] == 0xE8)
								{
									FoundElev8 = true;
									commStat = CommStatus.Connected;
									break;
								}
							}
						}
						if(FoundElev8)
						{
							break;
						}
						else
						{
							ftdi.Close();
						}
					}
				}
			}

			catch(Exception) {
				return;
			}


			Active = true;
			if( ftdi.IsOpen ) {
				currentMode = (Mode)(tcMainTabs.SelectedIndex + 1);
				txBuffer[0] = (byte)currentMode;
				uint written = 0;
				ftdi.Write( txBuffer, 1, ref written );	// Which mode are we in?
			}

			// Start my 'tick timer' - It's set to tick every 20 milliseconds
			// (used to check the comm port periodically instead of using a thread)
			//tickTimer.Start();
		}