ASIC/FPGA Design and Verification Out Source Services

FFT system C project - 8 point FFT using DIT algorithm.

1. The test-bench injects three simple cases to the FFT design: two square waves and a up going ramp. This is shown nicely by the analog option of the free VCD viewer, gtkwave (GTK wave useful links) .
   
   
   
   


2. Both the design and the reference models gets the same input. The result from each of them is printed and compared in a table.


3. There are two refernce models. One uses the fast FT algorithm. This one was downloaded from the WEB. The second I simply wrote and it does not use the fats FT algorithm. The results are shown below:
   
   


4. The accuracy of the results can be improved by increasing the multiply factor. Please see example at: FFT accuracy issues .


5. Return to the FFT main page. FFT main page .

Please let me know what you think on this FFT work.

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Butterfly system C module for an FFT

Some tips to work on bits, using perl.

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