private void btnRead_Click(object sender, RoutedEventArgs e)
{
if (dev == null)
{
return;
}
Task <String> t = Task.Run(async() =>
{
uint len = dev.GetQueueStatus();
if (len == 0)
{
return(null);
}
byte[] data = new byte[len];
uint read = await dev.ReadAsync(data, len);
if (read != len)
{
return(null);
}
string result = System.Text.Encoding.UTF8.GetString(data, 0, (int)len);
return(result);
});
AppendConsole(t.Result);
}
private async void StartReadingData()
{
while (true) // todo: build in cancellation support
{
try
{
var bytesInQueue = device.GetQueueStatus();
bytesInQueue = Math.Max(bytesInQueue, 1); // to make sure we don't create a cpu eating loop
var buffer = new byte[bytesInQueue];
var bytesRead = await device.ReadAsync(buffer, bytesInQueue);
if (bytesRead != 0)
{
ReadBuffer = ReadBuffer.Concat(buffer.Take((int)bytesRead)).ToArray();
}
}
catch (Exception ex)
{
WriteToLog(string.Format("Exception occurred: {0}", ex.Message));
}
}
}
/// <summary>
/// Tests the Purging of a device
/// </summary>
/// <param name="ftManager">The ftManager instance.</param>
/// <param name="deviceID">The device identifier.</param>
/// <returns>Task{Boolean}.</returns>
public async Task <Boolean> PurgeTest(FTManager ftManager, String deviceID)
{
try
{
int errorCode = (int)ERROR_CODES.SUCCESS;
double start = DateTime.Now.TimeOfDay.TotalSeconds;
String s = "\r\n\r\nStarted PurgeLoopbackTest\r\n";
AppendLogFile(s);
AppendConsole(s);
Boolean res = await Task.Run <Boolean>(async() =>
{
for (int i = 0; i < 100; i++)
{
byte[] dataTx = new byte[10];
byte[] dataRx = new byte[10];
// Create device list...
var devList = ftManager.GetDeviceList();
if (devList.Count == 0)
{
errorCode = (int)ERROR_CODES.NO_DEVICES_FOUND;
}
// Find device in the list again...
IFTDevice dev = ftManager.OpenByDeviceID(deviceID);
if (dev == null)
{
errorCode = (int)ERROR_CODES.FAILED_TO_OPEN;
}
await SetUARTSettings(dev);
// Generate some random data...
Random rnd = new Random();
for (int j = 0; j < dataTx.Length; j++)
{
dataTx[j] = (byte)rnd.Next(0, 0xff);
}
// Write then read back the data...
await dev.WriteAsync(dataTx, (uint)dataTx.Length);
dev.Purge(true, false);
for (int j = 0; j < dataTx.Length; j++)
{
dataTx[j] = (byte)rnd.Next(0, 0xff);
}
// Write then read back the data...
await dev.WriteAsync(dataTx, (uint)dataTx.Length);
uint count = await dev.ReadAsync(dataRx, (uint)dataTx.Length);
if (count < dataTx.Length)
{
errorCode = (int)ERROR_CODES.FAILED_TO_READ_ALL_DATA;
dev.Close();
return(false);
}
for (int j = 0; j < dataTx.Length; j++)
{
if (dataTx[j] != dataRx[j])
{
errorCode = (int)ERROR_CODES.DATA_INTEGRITY;
return(false);
}
}
dev.Close();
}
return(true);
}).AsAsyncOperation();
double finish = DateTime.Now.TimeOfDay.TotalSeconds;
s = String.Format(
@"Finished PurgeLoopbackTest:
Result: {0}
ErrorCode: {1}
Duration: {2}secs",
res.ToString().ToLower(),
errorCode,
Math.Round(finish - start, 2));
AppendLogFile(s);
AppendConsole(s);
return(res);
}
catch
{
return(false);
}
}
private async Task MultiThreadedReadWrite()
{
int errorCode = (int)ERROR_CODES.SUCCESS;
// Create device list...
var devList = ftManager.GetDeviceList();
if (devList.Count == 0)
{
errorCode = (int)ERROR_CODES.NO_DEVICES_FOUND;
}
// Find device in the list again...
IFTDevice dev = ftManager.OpenByDeviceID(devList[0].DeviceId);
if (dev == null)
{
errorCode = (int)ERROR_CODES.FAILED_TO_OPEN;
return;
}
await SetUARTSettings(dev);
byte[] dataTx = new byte[10];
byte[] dataRx = new byte[10];
var task1 = Windows.System.Threading.ThreadPool.RunAsync(
async(workItem) =>
{
while (true)
{
// Generate some random data...
Random rnd = new Random();
for (int j = 0; j < dataTx.Length; j++)
{
dataTx[j] = (byte)rnd.Next(0, 0xff);
}
await dev.WriteAsync(dataTx, (uint)10);
}
}).AsTask();
var task2 = Windows.System.Threading.ThreadPool.RunAsync(
async(workItem) =>
{
while (true)
{
uint count = await dev.ReadAsync(dataRx, (uint)10);
if (count < 10)
{
return;
}
}
}).AsTask();
#if DAVE
var task1 = Windows.System.Threading.ThreadPool.RunAsync(
async(workItem) =>
{
byte[] dataTx = new byte[10];
byte[] dataRx = new byte[10];
// Create device list...
var devList = ftManager.GetDeviceList();
if (devList.Count == 0)
{
errorCode = (int)ERROR_CODES.NO_DEVICES_FOUND;
}
// Find device in the list again...
IFTDevice dev = ftManager.OpenByDeviceID(devList[0].DeviceId);
if (dev == null)
{
errorCode = (int)ERROR_CODES.FAILED_TO_OPEN;
return;
}
await SetUARTSettings(dev);
// Generate some random data...
Random rnd = new Random();
for (int j = 0; j < dataTx.Length; j++)
{
dataTx[j] = (byte)rnd.Next(0, 0xff);
}
// Write then read back the data...
await dev.Write(dataTx, (uint)10);
uint count = dev.Read(dataRx, (uint)10);
if (count < 10)
{
errorCode = (int)ERROR_CODES.FAILED_TO_READ_ALL_DATA;
return;
}
for (int j = 0; j < 10; j++)
{
if (dataTx[j] != dataRx[j])
{
errorCode = (int)ERROR_CODES.DATA_INTEGRITY;
return;
}
}
dev.Close();
}).AsTask();
//await task1;
task1.Wait();
#endif
#if DAVE
while (task1.Status == TaskStatus.Running)
{
;
}
var task2 = Windows.System.Threading.ThreadPool.RunAsync(
async(workItem) =>
{
byte[] dataTx = new byte[10];
byte[] dataRx = new byte[10];
// Create device list...
var devList = ftManager.GetDeviceList();
if (devList.Count == 0)
{
errorCode = (int)ERROR_CODES.NO_DEVICES_FOUND;
return;
}
// Find device in the list again...
IFTDevice dev = ftManager.OpenByDeviceID(devList[0].DeviceId);
if (dev == null)
{
errorCode = (int)ERROR_CODES.FAILED_TO_OPEN;
return;
}
await SetUARTSettings(dev);
// Generate some random data...
Random rnd = new Random();
for (int j = 0; j < dataTx.Length; j++)
{
dataTx[j] = (byte)rnd.Next(0, 0xff);
}
// Write then read back the data...
await dev.Write(dataTx, (uint)10);
uint count = dev.Read(dataRx, (uint)10);
if (count < 10)
{
errorCode = (int)ERROR_CODES.FAILED_TO_READ_ALL_DATA;
return;
}
for (int j = 0; j < 10; j++)
{
if (dataTx[j] != dataRx[j])
{
errorCode = (int)ERROR_CODES.DATA_INTEGRITY;
return;
}
}
dev.Close();
}).AsTask();
await task2;
#endif
}
/// <summary>
/// Tests the QueueStatus property of an IFTDevice.
/// </summary>
/// <param name="ftManager">The ftManager instance.</param>
/// <param name="deviceID">The device identifier.</param>
/// <returns>Task{Boolean}.</returns>
public async Task <Boolean> QueueStatusTest(FTManager ftManager, String deviceID)
{
try
{
String s = "";
double start = 0;
int errorCode = (int)ERROR_CODES.SUCCESS;
uint TOTAL_BYTES = 32769;
uint PACKET_SIZE = 1024;
uint iterations = TOTAL_BYTES / PACKET_SIZE;
Boolean res = await Task.Run <Boolean>(async() =>
{
byte[] dataTx = new byte[TOTAL_BYTES];
byte[] dataRx = new byte[TOTAL_BYTES];
// Generate some random data...
Random rnd = new Random();
for (int j = 0; j < dataTx.Length; j++)
{
dataTx[j] = (byte)rnd.Next(0, 0xff);
}
// Create device list...
var devList = ftManager.GetDeviceList();
if (devList.Count == 0)
{
errorCode = (int)ERROR_CODES.NO_DEVICES_FOUND;
}
// Find device in the list again...
IFTDevice dev = ftManager.OpenByDeviceID(deviceID);
if (dev == null)
{
errorCode = (int)ERROR_CODES.FAILED_TO_OPEN;
}
await SetUARTSettings(dev);
start = DateTime.Now.TimeOfDay.TotalSeconds;
s = "\r\n\r\nStarted QueueStatusTest\r\n";
AppendLogFile(s);
AppendConsole(s);
await dev.WriteAsync(dataTx, 128);
dev.Purge(true, false);
for (int j = 0; j < TOTAL_BYTES; j++)
{
dataTx[j] = (byte)j;
}
await dev.ResetAsync();
await dev.WriteAsync(dataTx, 10);
while (dev.GetQueueStatus() != 10)
{
//return false;
}
if (await dev.ReadAsync(dataRx, 10) != 10)
{
return(false);
}
for (int j = 0; j < 10; j++)
{
if (dataTx[j] != dataRx[j])
{
errorCode = (int)ERROR_CODES.DATA_INTEGRITY;
return(false);
}
}
dev.Close();
return(true);
}).AsAsyncOperation();
double finish = DateTime.Now.TimeOfDay.TotalSeconds;
s = String.Format(
@"Finished QueueStatusTest:
Result: {0}
ErrorCode: {1}
Duration: {2}secs",
res.ToString().ToLower(),
errorCode,
Math.Round(finish - start, 2));
AppendLogFile(s);
AppendConsole(s);
return(res);
}
catch
{
return(false);
}
}
/// <summary>
/// Loopback test that transmits 1MB of data to the device and reads it back.
/// </summary>
public async Task <Boolean> LoopbackTest(FTManager ftManager, String deviceID)
{
try
{
String s = "";
double start = 0;
int errorCode = (int)ERROR_CODES.SUCCESS;
int TOTAL_BYTES = 65535;
int PACKET_SIZE = 1024;
int iterations = TOTAL_BYTES / PACKET_SIZE;
Boolean res = await Task.Run <Boolean>(async() =>
{
byte[] dataTx = new byte[TOTAL_BYTES];
byte[] dataRx = new byte[PACKET_SIZE];
// Generate some random data...
Random rnd = new Random();
for (int j = 0; j < dataTx.Length; j++)
{
dataTx[j] = (byte)rnd.Next(0, 0xff);
}
// Create device list...
var devList = ftManager.GetDeviceList();
if (devList.Count == 0)
{
errorCode = (int)ERROR_CODES.NO_DEVICES_FOUND;
}
// Find device in the list again...
IFTDevice dev = ftManager.OpenByDeviceID(deviceID);
if (dev == null)
{
errorCode = (int)ERROR_CODES.FAILED_TO_OPEN;
}
await SetUARTSettings(dev);
start = DateTime.Now.TimeOfDay.TotalSeconds;
s = "\r\n\r\nStarted LoopbackTest\r\n";
AppendLogFile(s);
AppendConsole(s);
for (int i = 0; i < iterations; i++)
{
byte[] buf = new byte[PACKET_SIZE];
Buffer.BlockCopy(dataTx, i *PACKET_SIZE, buf, 0, PACKET_SIZE);
// Write then read back the data...
double t1 = DateTime.Now.TimeOfDay.TotalSeconds;
await dev.WriteAsync(buf, (uint)PACKET_SIZE);
double t2 = DateTime.Now.TimeOfDay.TotalSeconds;
double t3 = DateTime.Now.TimeOfDay.TotalSeconds;
uint count = await dev.ReadAsync(dataRx, (uint)PACKET_SIZE);
double t4 = DateTime.Now.TimeOfDay.TotalSeconds;
if (count < PACKET_SIZE)
{
errorCode = (int)ERROR_CODES.FAILED_TO_READ_ALL_DATA;
return(false);
}
double span = t4 - t3;
//AppendConsole(span.ToString());
double t5 = DateTime.Now.TimeOfDay.TotalSeconds;
for (int j = 0; j < PACKET_SIZE; j++)
{
if (buf[j] != dataRx[j])
{
errorCode = (int)ERROR_CODES.DATA_INTEGRITY;
return(false);
}
}
double t6 = DateTime.Now.TimeOfDay.TotalSeconds;
}
dev.Close();
return(true);
}).AsAsyncOperation();
double finish = DateTime.Now.TimeOfDay.TotalSeconds;
s = String.Format(
@"Finished LoopbackTest:
Result: {0}
ErrorCode: {1}
Duration: {2}secs",
res.ToString().ToLower(),
errorCode,
Math.Round(finish - start, 2));
AppendLogFile(s);
AppendConsole(s);
return(res);
}
catch
{
return(false);
}
}
public async Task <IEnumerable <byte> > ReadAsync(byte[] buffer, uint bytesInQueue)
{
var bytesRead = await ftDevice.ReadAsync(buffer, bytesInQueue).AsTask();
return(buffer.Take((int)bytesRead));
}