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New Contributor

2 years ago

FFT intel FPGA IP is not working in variable streaming mode.

Hello All, I am using the FFT Intel FPGA IP , in variable streaming mode. The tool version is Intel Quartus Prime pro 21.4 . As soon as the rst_n is high the sink ready signal is going to 'X' sta...

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Kshitij_Intel

Frequent Contributor

2 years ago

Hi,

Please refer 3.2.1. Fixed-Point Variable Streaming FFTs (intel.com) especially, "For the first 8 clock cycles, the samples are fed unmodified through the butterfly unit to the delay feedback unit".

Also, please make sure, you are asserting and de-asserting sink_valid correctly as mentioned in the UG 3.4.2.4. Enabling the Variable Streaming FFT (intel.com).

Thank you

Kshitij Goel

Forum Discussion

FFT intel FPGA IP is not working in variable streaming mode.

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