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NI PXIe-6674T Calibration Procedure

b. Set a writable NI-Sync property node to pass FALSE to the 

Use PLL?

 attribute.

c. Call niSync Connect Clock Terminals VI to connect CLKIN to PXI_CLK10_IN.

d. Call niSync Close VI to close the handle.

LabVIEW Block Diagram

NI-SYNC C Function Call

Call 

niSync_SetAttributeViBoolean

 

with the following parameters:

vi

: “

<

SessionHandle

>

terminalName

: “”

attributeID

NISYNC_ATTR_CLKIN_USE_PLL

attributeValue

VI_FALSE

LabVIEW Block Diagram

NI-SYNC C Function Call

Call 

niSync_ConnectClkTerminals

 

with the following parameters:

vi

: “

<

SessionHandle

>

sourceTerminal

NISYNC_VAL_CLKIN

destinationTerminal

NISYNC_VAL_CLK10

LabVIEW Block Diagram

NI-SYNC C Function Call

Call 

niSync_close

 with the 

following parameter:

vi

: “

<

SessionHandle

>

Summary of Contents for PXIe-6674T

Page 1: ...vironments ADEs and programming languages including LabVIEW LabWindows CVI and Microsoft Visual C When you install the drivers you need to install support for only the ADE or programming language you...

Page 2: ...temperature of approximately 23 C 5 C Keep relative humidity below 80 percent Use shielded copper wire for all cable connections to the device Ensure the NI PXIe 6674T has been continuously powered f...

Page 3: ...Installation Guide for details about configuring the PXI Express equipment Verification The following steps outline the procedure for measuring the 10 MHz oscillator frequency on the NI PXIe 6674T and...

Page 4: ...unction Call Call niSync_SetAttributeViBoolean with the following parameters vi SessionHandle terminalName attributeID NISYNC_ATTR_CLKIN_USE_PLL attributeValue VI_FALSE LabVIEW Block Diagram NI SYNC C...

Page 5: ...handle for the device b Call niSync Measure Frequency VI to measure the frequency of the oscillator Table 1 Measurement Duration Device Measure Accuracy Required Measurement Duration NI PXIe 6674T 0...

Page 6: ...limit and high limit range listed under the Calibration Measurement Target Frequency Range in Table 3 the board is considered to be calibrated and no adjustment is needed LabVIEW Block Diagram NI SYNC...

Page 7: ...ives a frequency as close as possible to 10 MHz 1 Complete steps a to c to set the oscillator control voltage The range of acceptable voltage values is 0 0 V to 4 095 V with frequency increasing as vo...

Page 8: ...ency range for your module as shown in Table 3 Adjustment Target Frequency Ranges Adjust the oscillator control voltage up to increase the frequency and down to decrease the frequency 5 Commit the cal...

Page 9: ...e oscillator frequency operation by repeating the steps listed in the Verification section Re verifying after making the adjustments ensures that the NI PXIe 6674T is operating within its test limits...

Page 10: ...ur complete resource for technical support At ni com support you have access to everything from troubleshooting and application development self help resources to email and phone assistance from NI Ap...

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