FFT IP Core: User Guide

ID 683374
Date 11/06/2017
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3.4.1.3. Enabling the Streaming FFT

  1. You must assert the sink_valid signal for the FFT to assert source_valid (and a valid data output).
  2. To extract the final frames of data from the FFT, you need to provide several frames where the sink_valid signal is asserted and apply the sink_sop and sink_eop signals in accordance with the Avalon-ST specification.