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How can I call filter coefficients in bit reversed order for HDL FFT?

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Abdelmoumen Bacetti 2021-6-21

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评论： Abdelmoumen Bacetti 2021-6-21

采纳的回答： Kiran Kintali

Hi everybody

I'm working on a matched filter based on FFT/IFFT for HDL.

For efficiency purposes, I configured the FFT output for bit reversed order and I enabled the xk_index output.

I calculated my matching filter coefficcients of the refernce signal offline as it is always the same.

I know that I have to use this xk_index output to feed the correct coefficient to the complex multiplier. I just don't know how to do it in HDL.

Any help is welcomed.

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Kiran Kintali 2021-6-21

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This question can best addressed by Vivado System Generator support team at https://www.xilinx.com

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Abdelmoumen Bacetti 2021-6-21

Thanks for the hint.

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