FFT IP Core: User Guide

ID 683374
Date 11/06/2017
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3.4.1.1. Using the Streaming FFT

When the data transfer is complete, the FFT deasserts sink_sop and loads the data samples in natural order.
Figure 11. FFT Streaming Data Flow Simulation Waveform

When the final sample loads, the source asserts sink_eop and sink_valid for the last data transfer.

Figure 12. FFT Streaming Data Flow Input Flow Control
  1. Deassert the system reset, The data source asserts sink_valid to indicate to the FFT function that valid data is available for input.
  2. Assert both the sink_valid and the sink_ready for a successful data transfer.