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Altera_Forum
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18 years ago

FFT timing?

Hi I need to perform a 256 point FFT operation. I use the SOP and EOP signals to indicate the start and end of operation with sink_ready always high. My simulation suggests that the input data is per...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
18 years ago

I know that the output is incorrect because I reverse the process of the original FFT operation with an IFFT operation.I have experimented more ans there seems to be a correlation between when the systems does not work and when if functions. If I remove/add ouput pins from the design it changes the response of the system? I need the output pins to view the results of the simulation but by remiving and adding them I am changing the system. Should I make the output pins virtual, as they are currently only unassigned?