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Altera_Forum
Honored Contributor
Honored ContributorMegaCore FFT in Quartus
I'm working on using the MegaFunction FFT in Quartus on an Altera DE2 board, but have had issues finding documentation of the inputs/outputs to the function. I've scoured these forums for a while, bu...
Altera_ForumHonored Contributor
Honored Contributor --- Quote Start --- I get a "can't place pins" error on the audio_in and audio_out --- Quote End --- Cause the audio codec has a serial interface, you can't place a parallel bus for input respectively output. You need to use a serial transceiver and transmitter as in the DE2 demonstration projects. Although I don't know the FFT core from own applications, I see that source_valid is an output from the core. Thus it can't be set without causing an error. But users with detailed knowledge of FFT core may give suggestions related to your code.
