configure butterworth filter

[IñigoP]

Hello,

I have a butterworth filter, with 6 channels, implemented in the FPGA. Which value I need to put in the channel index?

[Bob_Schor]

Does the LabVIEW Help not provide "help"?  Do you know enough Signal Analysis to understand Butterworth Filters?  What (precisely) are you trying to accomplish?

Bob Schor

[IñigoP]

I've tried with the help, but it isn't enough documentation about this input. I want to filter the signal with a cufoff frequency of 10 times the frequency of the fundamental signal I want to measure. The thing is that the frequency of my signal changes in function of the speed, that's why I'm doing this, changing the frequency of the filter to measure it properly.

I'm trying to use this vi to obtain the butterworth coefficients and send them to the fpga (where the filter is implemented).