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any recommendations?
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Yes, read about MACC filters - that is what you are designing.
The Xilinx Virtex-4 Xtreme DSP guide has a pretty good description. The Microsemi DSP guide (for the SmartFusion2/Igloo2) also goes over this architecture. I don't recall if I ever found a good Altera example. The Stratix Cookbook might have an example. The trick is to use RAMs for the coefficient storage and input samples. You can also exploit symmetry, eg., even symmetry of taps can be exploited using a preadder.
That should give you enough hints. If you get stuck, ask for more help.
Cheers,
Dave
Honored Contributor
