Low pass filter not working properly

[EKANSH_CSIO]

Hi Everyone,

I am currently working on designing a lock in amplifier on a red pitaya board(STEMLab 125-14) using LabVIEW software. I am facing issues using the low pass filter in the setup. The output signal of the low pass filter isn't what it is supposed to be. Any help would be appreciated.

Thanks!

I have attached the vi and a screenshot of the front panel when it is running (input signals are 49kHz and 50kHz).

-Ekansh

[wiebe@CARYA]

Why is sample fr set to 1?

[GerdW]

Hi Ekansh,

why is there so much duplicated code? (Ever heard the term "subVI" before?)

Why did you even duplicate all those "dead code" constructs???

Why are there so many 1-frame sequence structures? They don't serve any purpose!