Differences Between RTSI/PXI Lines And PFI Lines In HSDIO Devices Hardware: Digital I/O (DIO)>>High-Speed>>PXI-6551, Digital I/O (DIO)>>High-Speed>>PXI-6552, Digital I/O (DIO)>>High-Speed>>PCI-6551, Digital I/O (DIO)>>High-Speed>>PCI-6552, Digital I/O (DIO)>>High-Speed>>PXI-6541, Digital I/O (DIO)>>High-Speed>>PXI-6542, Digital I/O (DIO)>>High-Speed>>PCI-6541, Digital I/O (DIO)>>High-Speed>>PCI-6542, Digital I/O (DIO)>>High-Speed>>PCI-6561, Digital I/O (DIO)>>High-Speed>>PCI-6562, Digital I/O (DIO)>>High-Speed>>PXI-6561, Digital I/O (DIO)>>High-Speed>>PXI-6562
Problem: I am seeing unexpected behavior when using the RTSI/PXI lines of my HSDIO devices. What am I doing wrong? Solution: This behavior may be caused by a fundamental difference in the HSDIO cards RTSI/PXI and PFI lines. The difference is:
In summary, if you need triggers and events synchronous with the clock, use the HSDIO cards PFI lines. The block diagrams in the help file (linked below) show how the RTSI connector does not go to the same circuitry as the PFI lines. Related Links: Product Manuals: NI Digital Waveform Generator/Analyzer Help Attachments:
Report Date: 10/15/2007 Last Updated: 10/30/2007 Document ID: 4EED91JX |
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