public static string GenerateWave(string sourceDevice = "Dev1", double freq = 100, double amp = 2,
string waveType = "sine")
{
waveType = waveType.ToLower();
AOFunctionGenerationType type = AOFunctionGenerationType.Sine; //default value
if (waveType.Equals("square"))
{
type = AOFunctionGenerationType.Square;
}
else if (waveType.Equals("triangle"))
{
type = AOFunctionGenerationType.Triangle;
}
NationalInstruments.DAQmx.Task myTask = new NationalInstruments.DAQmx.Task();
try
{
if (amp < 0)
{
amp *= -1;
}
if (amp > 5)
{
amp = 5;
}
myTask.AOChannels.CreateFunctionGenerationChannel(sourceDevice + "/fgen",
"fgen",
type,
freq, //freq
amp); //amplitude
// verify the task before doing the waveform calculations
myTask.Control(TaskAction.Verify);
myTask.Stop();
myTask.AOChannels[0].FunctionGenerationType = type;
myTask.AOChannels[0].FunctionGenerationFrequency = freq;
myTask.AOChannels[0].FunctionGenerationAmplitude = amp;
myTask.Start();
}
catch (DaqException err)
{
myTask.Dispose();
return("Fail" + err.Message);
}
myTask.Dispose();
return("OK");
}
public void GenerateWave(string device = "Dev1", double freq = 100, double amp = 2,
AOFunctionGenerationType type = AOFunctionGenerationType.Sine)
{
try
{
if (myTask == null)
{
myTask = new NationalInstruments.DAQmx.Task();
if (amp < 0)
{
amp *= -1;
}
if (amp > 5)
{
amp = 5;
}
myTask.AOChannels.CreateFunctionGenerationChannel(device + "/fgen",
"fgen",
type,
freq, //freq
amp); //amplitude
// verify the task before doing the waveform calculations
myTask.Control(TaskAction.Verify);
}
else
{
myTask.Stop();
myTask.AOChannels[0].FunctionGenerationType = type;
myTask.AOChannels[0].FunctionGenerationFrequency = freq;
myTask.AOChannels[0].FunctionGenerationAmplitude = amp;
}
myTask.Start();
}
catch (DaqException err)
{
MessageBox.Show(err.Message);
myTask.Dispose();
myTask = null;
}
}
