04-15-2021 07:03 PM
I am trying to configure a 1024-point FFT IP core. I tried to use unscaled FFT as well as scaled ones but I cannot get the same or almost the same results as Matlab FFT functions. I do not use cyclic prefix. For unscaled, I set the configuration to 16'h0001 and for the scaled version I used 22222 and 22223 for SCALE_SCH but it seems that it does not work. I should mention that for 512-point and 256-point it works. I would really appreciate if you could help to figure it out.
04-19-2021 06:13 AM
04-21-2021 12:11 PM
I have attached codes and an image that shows how I have configured my FFT. I have used Matlab FFT to validate Xilinx FFT output values. The output values of Matlab FFT are not exactly the same as Xilinx FFT, however, they are close. The output values that I have got using the configuration and attached files are way off from Matlab FFT outputs.