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AR# 24437

LogiCORE Fast Fourier Transform (xFFT) v4.1 - Why is the multiplier usage always zero when targeting Virtex-II/-II Pro and Spartan-3/E/A?

Description

Why is the multiplier usage always zero when targeting Virtex-II/-II Pro and Spartan-3/E/A?

Solution

The LogiCORE Fast Fourier Transform (FFT) v4.0 and v4.1 can only report the multiplier usage for Virtex-4 and Virtex-5 devices. 

 

Please see (Xilinx Answer Record 29209) for a detailed list of LogiCORE Fast Fourier Transform (FFT) Release Notes and Known Issues.

AR# 24437
Date Created 09/04/2007
Last Updated 05/21/2014
Status Archive
Type General Article