You may receive source errors (missing SOP, missing EOP) when attempting to process data through the Altera® FFT IP Core when fftpts_in not being driven or being driven incorrectly.
Device Family: Intel® Arria® 10 GT
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Type: Answers
Area: Intellectual Property
IP Product: FFT/IFFT
Do I need to drive fftpts_in of the FFT IP core, even if I'm not changing the block size?
Description
Workaround/Fix
fftpts_in must be driven, even if one is not dynamically changing the block size. For a fixed block size implementation, it should be driven to match the transform length selected in the parameter editor.