one shot pulse PXI-5406 VB6 DAQmx

[Big_Guy]

I have a one shot pulse that is generated by a counter that I need to trigger a one shot sine wave from a PXI-5406 function generator.

I have tried to do this using the Function Generator softpanel provided by NI and I was able to produce the single sinewave output.  When I tried to apply it using VB and DAQmx, it didn't work. 

I copied the settings to my program that I used in the FunctionGenerator SoftPanel.  The settings are as follow:

Mode---Frequency sweep of standard functions

TriggerType---Hardware

TriggerSource---PFI1

TriggerMode---Stepped

SignalOutput---Sinewave

StartFrequency---1000

StopFrequency---1000

Discrete Steps---2

Spacing---Linear

Amplitude---3

DCOffset---0 VDC

Below is my code that I am having problems with.  Please help me out.

    
    CheckError (niFgen_init("FunctionGenerator", True, True, GeneratorHandle))
    CheckError (niFgen_AbortGeneration(GeneratorHandle))
       
    CheckError (niFgen_ConfigureOutputMode(GeneratorHandle, NIFGEN_VAL_OUTPUT_FUNC))
    CheckError (niFgen_ConfigureStandardWaveform(GeneratorHandle, "0", NIFGEN_VAL_WFM_SINE, 3.0, 0, 1000, 0))
   
    CheckError (niFgen_ConfigureTriggerMode(GeneratorHandle, "0", NIFGEN_VAL_STEPPED))
    CheckError (niFgen_ConfigureDigitalEdgeStartTrigger(GeneratorHandle, "PFI1", NIFGEN_VAL_RISING_EDGE))
    
    CheckError (niFgen_ConfigureOutputEnabled(GeneratorHandle, "0", True))
    CheckError (niFgen_InitiateGeneration(GeneratorHandle))

Thanks in advance for all your help.    

[Evan_C]

The settings you are using in the Soft Front Panel are using Frequency List Mode, not Standard Function Mode.  You should be able to achieve the same behavior in your VB code by changing it to use Frequency List Mode and the same settings as your Soft Front Panel.  For an example on how to program NI-FGEN Frequency List Mode in VB, see the VB example nifgenSweepGeneratorExample that gets installed with NI-FGEN.

Hope this helps.