Hi Ivan,
You should be able to build an FPGA image with 2 FFT blocks and 2 window
blocks. I have done something similar on the E310 where I have 2 FFT
blocks and then 2 custom blocks which pass/discard selected FFT bins (and
is actually reasonably similar to the window block). A couple of points:
Yes, I really get an error
The packing of instances into the device could not be ovailable,
however, the unplaced instances require 9681 slices. Please analyze
your design to determine if the number of LUTs, FFs, and / or control
sets can be reduced.
ERROR: [Place 30-99] Placer failed with error:
