11-16-2016 10:44 PM
I wish to implement Bandpass filter with Variable Bandwidth (like 16k, 32k, 64k and so on). I have filter coefficients for various bandwidth. I have Vivado 2015 with FIR compiler v7.2. I wish to use Multiple band BPF co-coefficients into single IP. please guide for various step required to build such Filter.
11-17-2016 08:59 AM
11-17-2016 09:35 PM
How to select different bands of filter which I/o Pin is used to select different band. i wish to implement bpf with 6 different bands how do i select different bands. please provide example if possible or any other help.
11-18-2016 07:36 AM
You select different bands with different coefficient sets. So you'd write some logic to decide which coefficients to use based on your IO activity and use the reload or config interface to change them as necessary.
11-23-2016 10:18 PM
I have designed system with FIR Compiler V7.2 also attach required logic so that coefficients can be feed from Distributed Memory ROM to the FIR compiler. Whenever i wish to reload data to FIP ip i apply active high at reload_tvalid_signal and applied reload_tlast as soon as my all coefficients are all loaded. I try to check reponse at output of FIR compiler but with all different coefficients FIR output remains same. will you please figure out my mistake.
11-24-2016 08:23 AM
Can you post some screenshots of the simulation waveforms?
After reloading, you need to send a packet on the config interface to commit those changes. Did you do that?
11-24-2016 08:39 PM
I have implemented 2 filters each with 347 coefficients which are reloaded at start of system by using Channel selection mux.I have given same input to both filters but response remains same both for low pass and high pass i guess coefficients are reloaded. Please check simulation images and correct my mistake.
Thank You @ bwiec
12-01-2016 01:41 PM
03-14-2019 07:42 PM
I have the similar trouble when using the FIR IP V7.2，I have tried to select filter coefficients set but it seemed not working, and my IP setings and simulation waveforms are as follows