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Observer
Observer
292 Views
Registered: ‎08-13-2016

FFT IP 16 channels

Hi,

I'd like to use the FFT with 16 channels, but found it can only go to 12 channels (v9.1).  Is there some reason 16 cannot be used? Is it only a GUI constraint?

Thanks!

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Moderator
Moderator
228 Views
Registered: ‎08-16-2018

Re: FFT IP 16 channels

HI @buckd 

It's not the restriction from GUI, but from the IP itself. We have designed the IP for maximum 12 channels. For more than 12 channels, we need to use more than 1 FFT IP. 


/ 7\7     Meher Krishna Patel, PhD
\ \        Senior Product Application Engineer, Xilinx
/ /        
\_\/\7   It is not so much that you are within the cosmos as that the cosmos is within you...
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Observer
Observer
212 Views
Registered: ‎08-13-2016

Re: FFT IP 16 channels

OK. I guess I am curious why 12? - most limitations I've seen are power-of-2 limitations, of which 16 is the closest.

 

Thanks.

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Moderator
Moderator
135 Views
Registered: ‎08-01-2007

Re: FFT IP 16 channels

The power of 2 limitation is for FFT point size, i.e. tranform length, the number of channels means you can have one FFT IP dealing with 12 different input channels.

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