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Altera_Forum
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13 years ago

interfacing to FFT megafunction (Avalon ST)

Hi all, I am struggling to implement the FFT megafunction. IT builds and works ok with the generated testbench, but I cannot seem to wrap up the Avalon interface correctly Am I being a ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Yes, the Avalon-ST bus is picky.

Make sure you have exactly the FFT size between the sink_sop and sink_eop signals. Otherwise your results will be incorrect. When simulating, validate the the sink_error = 2'b00 and the source_error == 2'b00

Pete