Integration and System Considerations
PFI Lines
PFI lines are multipurpose programmable function input/outputs. These lines serve as connections to virtually all internal timing signals. NI signal generators have up to six digital lines that can accept or generate a trigger, generate a marker, accept or generate a Reference clock. The function of each PFI line is independent.
If you are using LabVIEW to program your signal generator and you want to connect external signal generators to the PFI lines, you can use the niFgen Configure Sample Clock Source VI, the niFgen Configure Reference Clock VI, or the niFgen Configure Trigger VI to route external signals to internal sources. You can use the niFgen Export Signal VI to route internal signals to the PFI lines on the front panel.
If you are using LabWindows/CVI to program your signal generator, you can use the niFgen_ConfigureSampleClockSource function, the niFgen_ConfigureReferenceClock function, or the niFgen_ConfigureTriggerSource function to route external signals to internal sources. You can use the niFgen_ExportSignal function to route internal signals to the PFI lines on the front panel.
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Caution If you enable a PFI line for output, do not connect any external signal source to it; doing so can damage the device, the computer, and the connected equipment. |
Related Topics
NI PXI-5404 PFI 0 Connector
NI PXI/PCI-5421/5422/5441 CH 0 Connector