AN 464: DFT/IDFT Reference Design

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ID 683644
Date 5/30/2018
Public
Document Table of Contents
Document Table of Contents x
About the DFT/IDFT Reference Design Functional Description for the DFT/IDFT Reference Design Getting Started with the DFT/IDFT Reference Design Running the Fixed-Point Model for the DFT/IDFT Reference Design Performance of DFT/IDFT Reference Design Document Revision History for AN 464: DFT/IDFT Reference Design
Functional Description for the DFT/IDFT Reference Design x
Parameters for the DFT/IDFT Reference Design Signals for the DFT/IDFT Reference Design
Getting Started with the DFT/IDFT Reference Design x
System Requirements for the DFT/IDFT Reference Design Installing the DFT/IDFT Reference Design Simulating the DFT/IDFT Reference Design with the Avalon-ST Testbench Simulating the Reference design with the Command Line Regression Test Synthezising the DFT/IDFT Reference Design
Running the Fixed-Point Model for the DFT/IDFT Reference Design x
Fixed-Point Model Parameters
About the DFT/IDFT Reference Design
Functional Description for the DFT/IDFT Reference Design
Getting Started with the DFT/IDFT Reference Design
Running the Fixed-Point Model for the DFT/IDFT Reference Design
Performance of DFT/IDFT Reference Design
Document Revision History for AN 464: DFT/IDFT Reference Design

Simulating the DFT/IDFT Reference Design with the Avalon-ST Testbench

The Avalon-ST testbench and script uses a single fixed set of parameters and runs a sequence of transforms with the transform length changing. This testbench quickly demonstrates the integration of the reference design and the Avalon-ST interfaces.
  1. Open the ModelSim simulator.
  2. Change the directory to/sim_top.
  3. Type the following command: 
    source ltefft_top.tclr
    Ignore the address out of range warnings.
  4. Compare the output file output_data.txt with the expected output expected_output_data_random_16_blocks.txt, to ensure they match except for the block length comments in the expected file.
    The test input file is input_stream_random_17_blocks.txt. The sequence of sizes are listed in the readme_random_17_blocks.txt file in the \sim_top directory.
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