LabVIEW 2013, FPGA Module, PXI-7841R When trying to close my Host VI after not changing anything, I am prompted to resave it along with several subVIs. When checking the reason for saving, all of the listed subVIs were recompiled. After doing some digging, it appears that all of the subVIs that were recompiled have FPGA VI Refnum controls or indicators on their front panel; and in fact, every VI in my project that has an FPGA Refnum front panel control or indicator is on the list. However, I'm also passing a cluster (typedef) of front panel controls to subVIs so that the controls can be updated while the subVIs run. I included the FPGA VI reference in that cluster for wiring convenience; whenever I need to access it, I just unbundle it from the cluster and run it into the necessary function or subVI. None of the subVIs that have this typedef cluster (that contains the FPGA VI refnum control) get recompiled automatically. Why does having an FPGA VI reference control/indicator on the front panel force recompilation, but having the same reference in a cluster control on the front panel not force it? Is this a bug or a feature?

LabVIEW

FPGA VI refnums on front panel always force recompile

Author

Noah, any ideas?

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I have been trying to reproduce the issue but I am not seeing it. What configurations do you have your Open FPGA VI reference? Do you have Dynamic mode turned on? Do you have any file conflicts in your project?

Noah | Applications Engineer | National Instruments

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LabVIEW

FPGA VI refnums on front panel always force recompile

Re: FPGA VI refnums on front panel always force recompile

Re: FPGA VI refnums on front panel always force recompile