|
public GetRxBytesAvailable ( |
||
| RxQueue | The number of bytes available to be read. | |
| Результат | 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;
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;
}
}
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;
}
}
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");
}
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);
}
}
}
// 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;
}
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;
}
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();
}