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NI PXIe-6672 Calibration Procedure
10
ni.com
b.
Set a writable NI-Sync property node to pass the constant
2.0475
to the
Oscillator Voltage
attribute.
c.
Call niSync Close VI to close the session handle.
Proceed with the following steps to find the correct oscillator control
voltage.
2.
After setting the control voltage, measure the frequency again with the
NI-Sync Measure Frequency VI to measure PFI 0, as shown in Step 3
of the
section.
Complete steps a–c to measure PFI 0.
a.
Call niSync Initialize VI to set up a handle for the device.
LabVIEW Block Diagram
NI-SYNC C Function Call
Call
niSync_SetAttributeViBoolean
with the following parameters:
vi
:
“<
SessionHandle>”
terminalName
:
““
attributeID
:
NISYNC_ATTR_OSCILLATOR_VOLTAGE
attributeValue
:
2.0475
LabVIEW Block Diagram
NI-SYNC C Function Call
Call
niSync_close
with the following
parameter:
vi
:
“<
SessionHandle>”
LabVIEW Block Diagram
NI-SYNC C Function Call
Call
niSync_init
with the following
parameters:
resourceName
:
Dev1
idQuery
:
NULL
resetDevice
:
VI_FALSE
vi
: *
SessionHandle