pxi 5142 infinite acq

[species]

Hi,

i have problem to start infinite acq in pxi5142 board

1) card is set to complex acq

2) ddc is enabled

3) ddc freq translation is enabled

4) I am trying to set cont. acq with this function

niScope_ConfigureTriggerSoftware (vi, 0.0, 0.0);

5) but during niScope_InitiateAcquisition I am getting 

error that software trigger is not available... only: none, immediate, edge

6) what i need is to start infinite, continous acq,

niScope_SetAttributeViInt32(m_hVi, VI_NULL, NISCOPE_ATTR_FETCH_RELATIVE_TO, NISCOPE_VAL_READ_POINTER)

and fetch the data with 

niScope_FetchComplex

What I can do ?

/rb

[HSD · Accepted solution]

Are you setting the NISCOPE_ATTR_REF_TRIGGER_DETECTOR_LOCATION attribute to  

NISCOPE_VAL_DDC_OUTPUT?

Either set it to  

NISCOPE_VAL_ANALOG_DETECTION_CIRCUIT or leave it unset.

[species]

hmmm it looks like that it works now!

Big big thanks... !