Knowledge Base Article

Why is the last output frame of the FFT IP core missing EOP?

Description

Due to a problem with the FFT IP core in Quartus® Prime Standard Software version 18.1, you may observe that the last output frame of the FFT IP core is missing EOP when both the Input Order and Output Order are configured to Natural and there are intervals with sink_valid = 0 between input frames.

Resolution

Configure the Output Order in FFT IP to be Digit Reverse.

Updated 1 month ago
Version 3.0
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