public void SealLeak(
[Values(10000, 20000, 50000)] double sampleRate
)
{
Converters.Clear();
Converters.Register("V", "V",
// just an identity conversion for now, to pass Validate()
(IMeasurement m) => m);
HekaDAQInputStream.RegisterConverters();
HekaDAQOutputStream.RegisterConverters();
Assert.That(HekaDAQController.AvailableControllers().Count(), Is.GreaterThan(0));
foreach (var daq in HekaDAQController.AvailableControllers())
{
const double epochDuration = 10; //s
//Configure DAQ
daq.InitHardware();
try
{
daq.SampleRate = new Measurement((decimal)sampleRate, "Hz");
var controller = new Controller();
controller.Clock = daq;
controller.DAQController = daq;
const decimal expectedBackgroundVoltage = 3.2m;
var expectedBackground = new Measurement(expectedBackgroundVoltage, "V");
var dev0 = new UnitConvertingExternalDevice("Device0", "Manufacturer", controller, expectedBackground)
{
MeasurementConversionTarget = "V",
Clock = daq
};
dev0.BindStream(daq.GetStreams("ANALOG_OUT.0").First() as IDAQOutputStream);
dev0.BindStream(daq.GetStreams("ANALOG_IN.0").First() as IDAQInputStream);
controller.DiscardedEpoch += (c, args) => Console.WriteLine("Discarded epoch: " + args.Epoch);
// Setup Epoch
var e = new Epoch("HekaIntegration");
HekaDAQController cDAQ = daq;
var stim = new DelegatedStimulus("TEST_ID", "V", new Dictionary <string, object>(),
(parameters, duration) =>
DataForDuration(duration, cDAQ.SampleRate),
parameters => Option <TimeSpan> .None()
);
e.Stimuli[dev0] = stim;
e.Background[dev0] = new Epoch.EpochBackground(expectedBackground, daq.SampleRate);
//Run single epoch
var fakeEpochPersistor = new FakeEpochPersistor();
new TaskFactory().StartNew(() =>
{
Thread.Sleep(TimeSpan.FromSeconds(epochDuration));
controller.CancelEpoch();
},
TaskCreationOptions.LongRunning
);
controller.RunEpoch(e, fakeEpochPersistor);
}
finally
{
if (daq.HardwareReady)
{
daq.CloseHardware();
}
}
}
}
public void MaxBandwidth(
[Values(20000)] decimal sampleRate,
[Values(1)] int nEpochs,
[Values(4)] int nOut,
[Values(8)] int nIn
)
{
Logging.ConfigureConsole();
Converters.Clear();
HekaDAQInputStream.RegisterConverters();
HekaDAQOutputStream.RegisterConverters();
Assert.That(HekaDAQController.AvailableControllers().Count(), Is.GreaterThan(0));
foreach (var daq in HekaDAQController.AvailableControllers())
{
const double epochDuration = 10; //s
daq.InitHardware();
try
{
daq.SampleRate = new Measurement(sampleRate, "Hz");
var controller = new Controller {
Clock = daq, DAQController = daq
};
HekaDAQController daq1 = daq;
var outDevices = Enumerable.Range(0, nOut)
.Select(i =>
{
var dev0 = new UnitConvertingExternalDevice("Device_OUT_" + i, "Manufacturer", controller,
new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq1
};
dev0.BindStream((IDAQOutputStream)daq1.GetStreams("ANALOG_OUT." + i).First());
return(dev0);
})
.ToList();
var inDevices = Enumerable.Range(0, nIn)
.Select(i =>
{
var dev0 = new UnitConvertingExternalDevice("Device_IN_" + i, "Manufacturer", controller,
new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq1
};
dev0.BindStream((IDAQInputStream)daq1.GetStreams("ANALOG_IN." + i).First());
return(dev0);
})
.ToList();
for (int j = 0; j < nEpochs; j++)
{
// Setup Epoch
var e = new Epoch("HekaIntegration");
var nSamples = (int)TimeSpan.FromSeconds(epochDuration).Samples(daq.SampleRate);
IList <IMeasurement> stimData = Enumerable.Range(0, nSamples)
.Select(i => new Measurement((decimal)(8 * Math.Sin(((double)i) / (nSamples / 10.0))), "V") as IMeasurement)
.ToList();
foreach (var outDev in outDevices)
{
e.Stimuli[outDev] = new RenderedStimulus((string)"RenderedStimulus", (IDictionary <string, object>) new Dictionary <string, object>(),
(IOutputData) new OutputData(stimData, daq.SampleRate));
e.Background[outDev] = new Epoch.EpochBackground(new Measurement(0, "V"), daq.SampleRate);
}
foreach (var inDev in inDevices)
{
e.Responses[inDev] = new Response();
}
//Run single epoch
var fakeEpochPersistor = new FakeEpochPersistor();
controller.RunEpoch(e, fakeEpochPersistor);
Assert.That((bool)e.StartTime, Is.True);
Assert.That((DateTimeOffset)e.StartTime, Is.LessThanOrEqualTo(controller.Clock.Now));
Assert.That(fakeEpochPersistor.PersistedEpochs, Contains.Item(e));
}
}
finally
{
if (daq.HardwareReady)
{
daq.CloseHardware();
}
}
}
}
public void ShouldSetStreamBackgroundOnStop(
[Values(10000, 20000)] double sampleRate
)
{
Converters.Clear();
Converters.Register("V", "V",
// just an identity conversion for now, to pass Validate()
(IMeasurement m) => m);
HekaDAQInputStream.RegisterConverters();
HekaDAQOutputStream.RegisterConverters();
Assert.That(HekaDAQController.AvailableControllers().Count(), Is.GreaterThan(0));
foreach (var daq in HekaDAQController.AvailableControllers())
{
const double epochDuration = 1; //s
//Configure DAQ
daq.InitHardware();
try
{
daq.SampleRate = new Measurement((decimal)sampleRate, "Hz");
var controller = new Controller();
controller.Clock = daq;
controller.DAQController = daq;
const decimal expectedBackgroundVoltage = -3.2m;
var expectedBackground = new Measurement(expectedBackgroundVoltage, "V");
var dev0 = new UnitConvertingExternalDevice("Device0", "Manufacturer", controller, expectedBackground)
{
MeasurementConversionTarget = "V"
};
dev0.BindStream(daq.GetStreams("ANALOG_OUT.0").First() as IDAQOutputStream);
dev0.BindStream(daq.GetStreams("ANALOG_IN.0").First() as IDAQInputStream);
dev0.Clock = daq;
controller.DiscardedEpoch += (c, args) => Console.WriteLine("Discarded epoch: " + args.Epoch);
// Setup Epoch
var e = new Epoch("HekaIntegration");
var nSamples = (int)TimeSpanExtensions.Samples(TimeSpan.FromSeconds(epochDuration), daq.SampleRate);
IList <IMeasurement> stimData = (IList <IMeasurement>)Enumerable.Range(0, nSamples)
.Select(i => new Measurement((decimal)(8 * Math.Sin(((double)i) / (nSamples / 10.0))), "V") as IMeasurement)
.ToList();
var stim = new RenderedStimulus((string)"RenderedStimulus", (IDictionary <string, object>) new Dictionary <string, object>(),
(IOutputData) new OutputData(stimData, daq.SampleRate, false));
e.Stimuli[dev0] = stim;
e.Responses[dev0] = new Response();
e.Background[dev0] = new Epoch.EpochBackground(expectedBackground, daq.SampleRate);
//Run single epoch
var fakeEpochPersistor = new FakeEpochPersistor();
controller.RunEpoch(e, fakeEpochPersistor);
Thread.Sleep(TimeSpan.FromMilliseconds(100)); //allow DAC to settle
var actual = ((HekaDAQController)controller.DAQController).ReadStreamAsyncIO(
daq.GetStreams("ANALOG_IN.0").First() as IDAQInputStream);
//Should be within +/- 0.025 volts
Assert.That(actual.Data.First().QuantityInBaseUnit, Is.InRange(expectedBackground.QuantityInBaseUnit - (decimal)0.025,
expectedBackground.QuantityInBaseUnit + (decimal)0.025));
}
finally
{
if (daq.HardwareReady)
{
daq.CloseHardware();
}
}
}
}
public void RenderedStimulus(
[Values(10000, 20000, 50000)] double sampleRate,
[Values(2)] int nEpochs
)
{
Logging.ConfigureConsole();
Converters.Clear();
Converters.Register("V", "V",
// just an identity conversion for now, to pass Validate()
(IMeasurement m) => m);
HekaDAQInputStream.RegisterConverters();
HekaDAQOutputStream.RegisterConverters();
Assert.That(HekaDAQController.AvailableControllers().Count(), Is.GreaterThan(0));
foreach (var daq in HekaDAQController.AvailableControllers())
{
const double epochDuration = 5; //s
daq.InitHardware();
try
{
daq.SampleRate = new Measurement((decimal)sampleRate, "Hz");
var controller = new Controller {
Clock = daq, DAQController = daq
};
var dev0 = new UnitConvertingExternalDevice("Device0", "Manufacturer", controller, new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq
};
dev0.BindStream((IDAQOutputStream)daq.GetStreams("ANALOG_OUT.0").First());
dev0.BindStream((IDAQInputStream)daq.GetStreams("ANALOG_IN.0").First());
var dev1 = new UnitConvertingExternalDevice("Device1", "Manufacturer", controller, new Measurement(0, "V"))
{
MeasurementConversionTarget = "V",
Clock = daq
};
dev1.BindStream((IDAQOutputStream)daq.GetStreams("ANALOG_OUT.1").First());
dev1.BindStream((IDAQInputStream)daq.GetStreams("ANALOG_IN.1").First());
for (int j = 0; j < nEpochs; j++)
{
// Setup Epoch
var e = new Epoch("HekaIntegration");
var nSamples = (int)TimeSpan.FromSeconds(epochDuration).Samples(daq.SampleRate);
IList <IMeasurement> stimData = (IList <IMeasurement>)Enumerable.Range(0, nSamples)
.Select(i => new Measurement((decimal)(8 * Math.Sin(((double)i) / (nSamples / 10.0))), "V") as IMeasurement)
.ToList();
e.Stimuli[dev0] = new RenderedStimulus((string)"RenderedStimulus", (IDictionary <string, object>) new Dictionary <string, object>(),
(IOutputData) new OutputData(stimData, daq.SampleRate));
e.Responses[dev0] = new Response();
e.Background[dev0] = new Epoch.EpochBackground(new Measurement(0, "V"), daq.SampleRate);
e.Stimuli[dev1] = new RenderedStimulus((string)"RenderedStimulus", (IDictionary <string, object>) new Dictionary <string, object>(),
(IOutputData) new OutputData(Enumerable.Range(0, nSamples)
.Select(i => new Measurement((decimal)(8 * Math.Sin(((double)i) / (nSamples / 10.0))), "V"))
.ToList(),
daq.SampleRate));
e.Responses[dev1] = new Response();
e.Background[dev1] = new Epoch.EpochBackground(new Measurement(0, "V"), daq.SampleRate);
//Run single epoch
var fakeEpochPersistor = new FakeEpochPersistor();
controller.RunEpoch(e, fakeEpochPersistor);
Assert.That((bool)e.StartTime, Is.True);
Assert.That((DateTimeOffset)e.StartTime, Is.LessThanOrEqualTo(controller.Clock.Now));
Assert.That(e.Responses[dev0].Duration, Is.EqualTo(((TimeSpan)e.Duration))
.Within(TimeSpanExtensions.FromSamples(1,
daq.
SampleRate)));
Assert.That(e.Responses[dev1].Duration, Is.EqualTo(((TimeSpan)e.Duration))
.Within(TimeSpanExtensions.FromSamples(1,
daq.
SampleRate)));
Assert.That(fakeEpochPersistor.PersistedEpochs, Contains.Item(e));
var failures0 =
e.Responses[dev0].Data.Select(
(t, i) => new { index = i, diff = t.QuantityInBaseUnit - stimData[i].QuantityInBaseUnit })
.Where(dif => Math.Abs(dif.diff) > (decimal)MAX_VOLTAGE_DIFF);
foreach (var failure in failures0.Take(10))
{
Console.WriteLine("{0}: {1}", failure.index, failure.diff);
}
/*
* According to Telly @ Heka, a patch cable may introduce 3-4 offset points
*/
Assert.That(failures0.Count(), Is.LessThanOrEqualTo(4));
/*
* //Since we only have one patch cable on the test rig,
* //we're not checking second device response values
*
* var failures1 =
* e.Responses[dev1].Data.Data.Select(
* (t, i) => new { index = i, diff = t.QuantityInBaseUnit - stimData[i].QuantityInBaseUnit })
* .Where(dif => Math.Abs(dif.diff) > MAX_VOLTAGE_DIFF);
*
* foreach (var failure in failures1.Take(10))
* Console.WriteLine("{0}: {1}", failure.index, failure.diff);
*
* Assert.That(failures1.Count(), Is.EqualTo(0));
*/
}
}
finally
{
if (daq.HardwareReady)
{
daq.CloseHardware();
}
}
}
}