public void DAQ_TaskFunction()
{
float[] data = acquisitionUnit.ReadData(numValuesAtOnce);
if (data.Length > 0)
{
for (int i = 0; i < data.Length; ++i)
{
f[i % numChannels][(i / numChannels)] = f[i % numChannels][(i / numChannels) + (data.Length / numChannels)]; //left shift of the values
f[i % numChannels][(i / numChannels) + (data.Length / numChannels)] = f[i % numChannels][(i / numChannels) + (2 * data.Length / numChannels)];
f[i % numChannels][(i / numChannels) + (2 * data.Length / numChannels)] = f[i % numChannels][(i / numChannels) + (3 * data.Length / numChannels)];
f[i % numChannels][(i / numChannels) + (3 * data.Length / numChannels)] = f[i % numChannels][(i / numChannels) + (4 * data.Length / numChannels)];
f[i % numChannels][(i / numChannels) + (4 * data.Length / numChannels)] = data[i];
}
FFT_isRunning = true;
Filter_isRunning = true; // Make sure there are data to filter before filtering them
}
//
if (t2 > (120 * 1000 / DAQ_hThread_PERIOD)) //refresh the buffer to avoid overflow : introduce artefact every 2minutes, but doesn't really bother the detection
{
acquisitionUnit.StopAcquisition();
acquisitionUnit.StartAcquisition(devices);
t2 = 0;
}
++t2;
}
//-------------------------------------------------------------------------------------------------------------------------------------------------------------------
public void DAQ_TaskInit() // data acquisition
{
DAQ_isRunning = true;
acquisitionUnit = new DataAcquisitionUnit();
//determine how many bytes should be read and processed at once by the processing thread (not the acquisition thread!)
numChannels = 0;
foreach (DeviceConfiguration deviceConfiguration in devices.Values)
{
numChannels += (deviceConfiguration.SelectedChannels.Count + Convert.ToInt32(deviceConfiguration.TriggerLineEnabled));
}
numValuesAtOnce = (int)Math.Floor(numScans * numChannels * NumSecondsRunning);
acquisitionUnit.StartAcquisition(devices);
f = new double[numChannels][];
for (int j = 0; j < numChannels; ++j)
{
f[j] = new double[(int)Math.Floor(5 * numScans * NumSecondsRunning)]; //save 5*NumSecondsRunning
}
}
public void DAQ_TaskInit()
{
DAQ_isRunning = true;
//data = new double[] { 1.0, 2.0, 3.3, 4.7 };
acquisitionUnit = new DataAcquisitionUnit();
//create device configurations
Dictionary <string, DeviceConfiguration> devices = CreateDefaultDeviceConfigurations("UB-2011.11.15");
//determine how many bytes should be read and processed at once by the processing thread (not the acquisition thread!)
numScans = 512;
numChannels = 0;
foreach (DeviceConfiguration deviceConfiguration in devices.Values)
{
numChannels += (deviceConfiguration.SelectedChannels.Count + Convert.ToInt32(deviceConfiguration.TriggerLineEnabled));
}
numValuesAtOnce = numScans * numChannels;
acquisitionUnit.StartAcquisition(devices);
f = new double[numChannels][];
for (int j = 0; j < numChannels; ++j)
{
f[j] = new double[numScans * NumSecondsRunning];
}
x = 0;
}