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AR# 15383

LogiCORE 64-pt FFT v2.0 - The RESULT signal is not reset properly in the 64-point FFT v2.0


General Description: 
The RESULT signal of a 64-point FFT v2.0 does not reset properly between transform results. The RESULT signal will go High 128 clock cycles early and stay High for 192 clock cycles instead of 64.


This problem is caused when an internal counter inside the core does not reset properly. 
To work around this issue, reset the FFT Core before every transform. 
This problem has been fixed in the xFFT Core that is now available.
AR# 15383
Date Created 09/03/2007
Last Updated 05/14/2014
Status Archive
Type General Article