The FFT-based FPGA design, very classic, can use

fft2
....\address.vhd
....\blockdram.vhd
....\cfft.bsf
....\cfft.vhd
....\cfft4.vhd
....\db
....\..\altsyncram_6ai1.tdf
....\..\fft2.asm.qmsg
....\..\fft2.atom.rvd
....\..\fft2.cbx.xml
....\..\fft2.cmp.bpm
....\..\fft2.cmp.cdb
....\..\fft2.cmp.ecobp
....\..\fft2.cmp.hdb
....\..\fft2.cmp.logdb
....\..\fft2.cmp.rdb
....\..\fft2.cmp.tdb
....\..\fft2.cmp0.ddb
....\..\fft2.cmp_bb.cdb
....\..\fft2.cmp_bb.hdb
....\..\fft2.cmp_bb.logdb
....\..\fft2.cmp_bb.rcf
....\..\fft2.dbp
....\..\fft2.db_info
....\..\fft2.eco.cdb
....\..\fft2.eda.qmsg
....\..\fft2.eds_overflow
....\..\fft2.fit.qmsg
....\..\fft2.hier_info
....\..\fft2.hif
....\..\fft2.map.bpm
....\..\fft2.map.cdb
....\..\fft2.map.ecobp
....\..\fft2.map.hdb
....\..\fft2.map.logdb
....\..\fft2.map.qmsg
....\..\fft2.map_bb.cdb
....\..\fft2.map_bb.hdb
....\..\fft2.map_bb.logdb
....\..\fft2.pre_map.cdb
....\..\fft2.pre_map.hdb
....\..\fft2.psp
....\..\fft2.pss
....\..\fft2.rpp.qmsg
....\..\fft2.rtlv.hdb
....\..\fft2.rtlv_sg.cdb
....\..\fft2.rtlv_sg_swap.cdb
....\..\fft2.sgate.rvd
....\..\fft2.sgate_sm.rvd
....\..\fft2.sgdiff.cdb
....\..\fft2.sgdiff.hdb
....\..\fft2.signalprobe.cdb
....\..\fft2.sim.cvwf
....\..\fft2.sim.hdb
....\..\fft2.sim.qmsg
....\..\fft2.sim.rdb
....\..\fft2.sld_design_entry.sci
....\..\fft2.sld_design_entry_dsc.sci
....\..\fft2.sta.qmsg
....\..\fft2.sta.rdb
....\..\fft2.syn_hier_info
....\..\fft2.tan.qmsg
....\..\fft2.tis_db_list.ddb
....\..\prev_cmp_fft2.asm.qmsg
....\..\prev_cmp_fft2.eda.qmsg
....\..\prev_cmp_fft2.fit.qmsg
....\..\prev_cmp_fft2.map.qmsg
....\..\prev_cmp_fft2.qmsg
....\..\prev_cmp_fft2.sim.qmsg
....\..\prev_cmp_fft2.tan.qmsg
....\..\ram0_blockdram_ebeab5ec.hdl.mif
....\..\wed.wsf
....\div4limit.vhd
....\fft2.asm.rpt
....\fft2.done
....\fft2.eda.rpt
....\fft2.fit.rpt
....\fft2.fit.smsg
....\fft2.fit.summary
....\fft2.flow.rpt
....\fft2.map.rpt
....\fft2.map.summary
....\fft2.merge.rpt
....\fft2.pin
....\fft2.pof
....\fft2.qpf
....\fft2.qsf
....\fft2.qws
....\fft2.sdc
....\fft2.sim.rpt
....\fft2.sof
....\fft2.tan.rpt
....\fft2.tan.summary
....\fft2.vwf
....\fft2_assignment_defaults.qdf
....\fft2_nativelink_simulation.rpt
....\mulfactor.vhd
....\p2r_cordic.vhd
....\p2r_CordicPipe.vhd

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