Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Problem with using Inverse FFT Megacore

I have a megacore FFT (length=32768, Buffered Burst) on the fpga and sending it data from the ARM processor (Cyclone V SoC) I can successfully perform FFT on data. But when I use the same cor...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
12 years ago

Hi Kaz. Thanks for that. Keeping the inverse at '1' throughout the frame helped. Now it does calculate the Inverse.

I just always thought it was a pulse because in the guide it said " Inverse FFT calculated if asserted. Only sampled at SOP" So I figured it checks for inverse input only at the sop. I guess that was a bad assumption to make.

Thanks for the help.