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I would like to know how many clocks cycles the FFTv4_1 require? Does anyone know how to determine the required clock cycles? I am using the System Generator 9.2i version.

Thank you so much!

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    \$\begingroup\$ Simulate in Modelsim? Also, surely there will be a report that you can generate to get timing information like this. The manual is likely the best place for this info - I just checked and it has a detailed chapter on timing analysis (p329 onwards) \$\endgroup\$ – Oli Glaser Sep 1 '11 at 15:10
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calculating the FFT is not a "FIXED" clock cycle operation. It depends largely on the sample block size and the number of Add/Multiply/Address Fetches are calculated. the FFT algorithm takes care of the ADD/Mutliple/Address Fetching optimization. However, you need to specify the number of samples this is being applied to.

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