NI 5450 Calibration Procedure
48
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12. 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 Trigger Offset
used in step 19 of this section, and in step 5
of the
section.
13. Configure an edge trigger using the niScope Configure Trigger (poly)
VI. Select the Analog Edge Ref Trigger instance of the VI.
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
Channel List
value
in Table 15 (NI 5152) or Table 16
(NI 5153/5154) for the current iteration
numSamples
:
–1
LabVIEW VI
C/C++ Function Call
Call
niScope_Configure
TriggerEdge
with the following
parameters:
vi
: The instrument handle from
niScope_init
triggerCoupling
:
NISCOPE_VAL_DC
slope
: The
Trigger
Slope
value listed
in Table 15 (NI 5152) or Table 16
(NI 5153/5154) for the current
iteration
triggerSource
: The
Trigger Source
value listed in Table 15 (NI 5152) or
Table 16 (NI 5153/5154)
level
: The
Positive Trigger Level
value
in Table 15 (NI 5152) or Table 16
(NI 5153/5154) for the current
iteration
holdoff
:
0
delay
:
0