How can I get the Coefficients of scaling for the Butterworth filter FPGA version
I am trying to program a FPGA application where I need to be able to change the cutoff frequency of the filter. I see that I can do a terminal for the coefficients of the filter on the VI express Butterworth filter, but how to generate the coefficients of different cut-off frequencies of filter? When I use the VI of Coefficients of Butterworth host-side small floating-point values rather than the large fixed point values I see on the side turns FPGAS.
Thank you
David R. Asher
Hi David,
8.5 or 8.6, there is an example of navigation that contains the Subvi design filter you need:
examples\R Series\FPGA Fundamentals\Analysis and Control\Filter and filter Butterworth Reconfigurable DC-RMS\Using-R - series.lvproj
In LabVIEW 2009, there is a new palette in my computer: Interface FPGA > scaling, with a new VI of Coefficients of Butterworth on this subject. Who will produce the coefficients quantified, you need in the format expected by the FPGA Butterworth filter.
Kind regards
Jim
Tags: NI Software
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