public void DelegatesSampleRateToController()
{
var c = new NIDAQController();
var s = new NIDAQOutputStream("none", 0, c);
var srate = new Measurement(1000, "Hz");
c.SampleRate = srate;
Assert.That(s.SampleRate, Is.EqualTo(c.SampleRate));
Assert.Throws<NotSupportedException>(() => s.SampleRate = srate);
}
private void WriteSingleDigital(NIDAQOutputStream stream, double value)
{
using (var t = new DAQTask())
{
t.DOChannels.CreateChannel(stream.PhysicalName, "", ChannelLineGrouping.OneChannelForAllLines);
var writer = new DigitalSingleChannelWriter(t.Stream);
writer.WriteSingleSamplePort(true, (UInt32) value);
}
}
private void WriteSingle(NIDAQOutputStream stream, IMeasurement value)
{
var quantity = (double) Converters.Convert(value, stream.DAQUnits).QuantityInBaseUnits;
if (stream.PhysicalChannelType == PhysicalChannelTypes.AO)
WriteSingleAnalog(stream, quantity);
else if (stream.PhysicalChannelType == PhysicalChannelTypes.DOPort)
WriteSingleDigital(stream, quantity);
}
private void WriteSingleAnalog(NIDAQOutputStream stream, double value)
{
using (var t = new DAQTask())
{
t.AOChannels.CreateVoltageChannel(stream.PhysicalName, "", Device.AOVoltageRanges.Min(),
Device.AOVoltageRanges.Max(), AOVoltageUnits.Volts);
var writer = new AnalogSingleChannelWriter(t.Stream);
writer.WriteSingleSample(true, value);
}
}
public void SetStreamBackground(NIDAQOutputStream stream)
{
if (stream != null)
{
WriteSingle(stream, stream.Background);
}
}