├── .gitignore ├── .gitmodules ├── LICENSE ├── README.md ├── barrel_shifter.vhd ├── codegen ├── do_gen_fft ├── do_gen_large_fft ├── gen_fft.py ├── gen_fft_generators.py ├── gen_fft_large.py ├── gen_fft_layouts.py ├── gen_fft_modules.py ├── gen_fft_utils.py ├── gen_roms.sh ├── gen_twiddle_rom.py ├── gen_twiddle_rom_partial.py └── gen_twiddle_rom_simple.py ├── complex_multiply.vhd ├── complex_multiply2.vhd ├── complex_multiply_large.vhd ├── complex_ram.vhd ├── complex_ram_delay.vhd ├── complex_ram_lut.vhd ├── docs ├── diagrams │ ├── dram_optimized_matrix_order.xml │ ├── fft4_serial7.png │ ├── fft4_serial7.xml │ ├── fft4_serial8.xml │ ├── fft4_serial9.xml │ ├── fft_spdf.xml │ ├── fft_spdf_halfstage.svg │ ├── fft_spdf_stage.svg │ ├── overview.png │ ├── overview.xml │ └── spdf.svg ├── ug9001.odt └── ug9001.pdf ├── fft2_no_pipeline.vhd ├── fft2_serial.vhd ├── fft2_serial2.vhd ├── fft4.vhd ├── fft4_no_pipeline.vhd ├── fft4_serial3.vhd ├── fft4_serial4.vhd ├── fft4_serial4_bf.vhd ├── fft4_serial5.vhd ├── fft4_serial5_natural.vhd ├── fft4_serial6.vhd ├── fft4_serial7.vhd ├── fft4_serial8.vhd ├── fft4_serial8_bf.vhd ├── fft4_serial9.vhd ├── fft4_serial9_bf.vhd ├── fft_spdf_halfstage.vhd ├── fft_spdf_stage.vhd ├── fft_types.vhd ├── generated └── fft1024_wide │ ├── fft1024_wide.vhd │ ├── fft1024_wide_ireorderer1.vhd │ ├── fft1024_wide_ireorderer2.vhd │ ├── fft1024_wide_ireorderer4.vhd │ ├── fft1024_wide_large2.vhd │ ├── fft1024_wide_large2axi.vhd │ ├── fft1024_wide_large4.vhd │ ├── fft1024_wide_large4_axi.vhd │ ├── fft1024_wide_large4axi.vhd │ ├── fft1024_wide_oreorderer1.vhd │ ├── fft1024_wide_oreorderer2.vhd │ ├── fft1024_wide_oreorderer4.vhd │ ├── fft1024_wide_sub16.vhd │ ├── fft1024_wide_sub16_2.vhd │ ├── fft1024_wide_sub64.vhd │ ├── fft1024_wide_wrapper1.vhd │ ├── fft1024_wide_wrapper2.vhd │ └── fft1024_wide_wrapper4.vhd ├── gowin └── gwMult18x18.vhd ├── multiply_add.vhd ├── reorder_buffer.vhd ├── spdf_butterfly.vhd ├── sr.vhd ├── sw ├── Makefile ├── axi_fft.C ├── examples │ ├── Makefile │ ├── axi_channelizer_test.C │ ├── axi_fft_test.C │ ├── axi_mipmap_test.C │ ├── axi_speedtest.C │ ├── axi_transposer_test.C │ ├── copy_array.C │ ├── copy_array.H │ └── sdr5_mipmap_loopback_test.C └── include │ └── owocomm │ └── axi_fft.H ├── tests ├── test_dsp48e1_complex_mult.vhd ├── test_dsp48e1_mult.vhd ├── test_fft1024.vhd ├── test_fft1024_golden.py ├── test_fft1024_spdf.vhd ├── test_fft16_2.vhd ├── test_fft16_2_golden.py ├── test_fft16_serial.vhd ├── test_fft16_serial2.vhd ├── test_fft16_serial2_golden.py ├── test_fft16_serial3.vhd ├── test_fft16_serial_golden.py ├── test_fft256_serial.vhd ├── test_fft256_serial_golden.py ├── test_fft4.vhd ├── test_fft4_serial.vhd ├── test_fft4_serial2.vhd ├── test_fft4_serial4.vhd ├── test_fft4_serial4_golden.py ├── test_fft4_serial5.vhd ├── test_fft4_serial5_natural.vhd ├── test_fft4_serial6.vhd ├── test_fft4_serial7.vhd ├── test_fft4_serial8.vhd ├── test_fft4_serial_golden.py ├── test_fft64_serial.vhd ├── 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