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National Instruments Corporation
49
NI 5450 Calibration Procedure
14. Initiate a waveform acquisition using the niScope Initiate
Acquisition VI.
15. Acquire a waveform using the niScope Fetch (poly) VI. Select the
Cluster instance of the VI. The first point in the waveform array is
the
Measured Positive Trigger Gain
used in step 19.
LabVIEW VI
C/C++ Function Call
Call
niScope_InitiateAcquisition
with the following parameter:
vi
: The instrument handle from
niScope_init
LabVIEW VI
C/C++ Function Call
Call
niScope_Fetch
with the following
parameter:
vi
: The instrument handle from
niScope_init
timeout
:
2.0
channelList
: The
ChannelList
value listed
in Table 15 (NI 5152) or Table 16
(NI 5153/5154) for the current iteration
numSamples
:
–1