Dear All, I am trying to extract 1 channel/band using PFB/FFT (pfb_fir_generic & fft_wideband_real blocks from casper library) and I am getting inconsistent result from a 64 channel PFB/FFT.
I also found that the for 64 channel FFT, the fft_wideband_real block breaks at fft_wideband_real/fft_biplex_real_4x/bi_real_unscr_4x/delay0 (or ../bi_real_unscr_4x/delay1) for BRAM latency > 2. Can this be also a cause for concern ? I have enclosed the plots of the same band for the 64 & 128 channel FFTs. The BW of 1 band is 12.5 MHz for 128 channels and 25 MHz for 64 channels FFT. The design has ASIAA 5g ADCs with fpga running at 200 MHz and same noise source is feeding both ADCs. I am using the sma-wideband repository with commit : ecab6f5 Regards, Amit Bansod
