niRFSG Configure Ref Clock

NI-RFSG LabVIEW

niRFSG Configure Ref Clock

Configures the NI-RFSG device reference clock. The reference clock ensures that the NI-RFSG devices are operating from a common timebase. The NI-RFSG device must be in the Configuration state before you call this VI.

Supported Devices: NI 5650/5651/5652/5670/5671/5672

niRFSG Configure Ref Clock

cio.gif

instrument handle identifies your instrument session. instrument handle is obtained from either the niRFSG Initialize VI or the niRFSG Initialize With Options VI.

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clock source specifies the source of the reference clock signal.

Only certain combinations of clock source and PXI Chassis Clk 10 Source Setting are valid, as shown in the following table.

clock source Setting Valid PXI Chassis Clk 10 Source Setting
Onboard Clock None, Onboard Clock
RefIn (external) None, RefIn
PXI_CLK10 None (PXI 10 MHz oscillator)

RefIn (Reference signal connected to the REF_IN connector of the upconverter; backplane locked to REF_IN; upconverter locked to backplane)

NI-RFSG sets the Reference Clock Source property to this value.

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clock rate (Hz) specifies the reference clock rate, expressed in hertz. The default value, 10 MHz, is the only supported value.

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error in accepts error information from previously called VIs. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

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status is either TRUE (X) for an error, or FALSE (?) for no error or warning. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

ci32.gif

code identifies the error or warning. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

cstr.gif

source describes the origin of the error or warning. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

iio.gif

instrument handle out passes a reference to your instrument session to the next VI. instrument handle out is obtained from the niRFSG Initialize VI or the niRFSG Initialize With Options VI and identifies a particular instrument session.

icclst.gif

error out passes error or warning information out of a VI to be used by other VIs. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

ibool.gif

status is either TRUE (X) for an error, or FALSE (?) for no error or warning. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

ii32.gif

code identifies the error or warning. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.

istr.gif

source describes the origin of the error or warning. The pop-up option Explain Error (or Explain Warning) gives more information about the error displayed.