I cannot tell what goes wrong, what you expect to happen and what does not happen, too few input. Can you post your complete project together with a more detailled description what you expect to see and what you actually get?
To post the project -
“Create Workspace Bundle”
attached the project
i cant see the attenuation in the scope on 2.5kHZ as I expected...
I tried 10 different frequencies in the range 1-5kHZ with no success...
There is a mismatch between the sps of the ADC (48Ksps) and the definition for the filter (10ksps). I would suggest you to choose the same rate for both (10ksps) to see a more correct result.