Jason 60e49c7da6 feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3) ...

File-scoped cherry-pick from feat/fft-2048-upgrade (e9705e4) for modules
that only the fft branch modified:

  RTL:
    cfar_ca.v                        512-row CFAR
    chirp_memory_loader_param.v      2-segment × 2048-sample loader
    doppler_processor.v              16384-deep doppler memory
    fft_engine.v                     2048-pt FFT
    matched_filter_multi_segment.v   2-seg overlap-save, BRAM overlap_cache
    matched_filter_processing_chain.v
    radar_mode_controller.v          XOR edge detector
    radar_params.vh                  (new) single source of truth
    range_bin_decimator.v            2048 -> 512 output bins
    rx_gain_control.v

  Memory:
    fft_twiddle_2048.mem             (new) 2048-pt FFT twiddles
    long_chirp_seg0_{i,q}.mem        2048-sample seg 0 (was 1024)
    long_chirp_seg1_{i,q}.mem        2048-sample seg 1 (was 1024)
    long_chirp_seg{2,3}_{i,q}.mem    deleted (4-seg -> 2-seg collapse)

  Gen:
    tb/cosim/gen_chirp_mem.py        regen script for mem files above

Waves 2 and 3 follow: manual merge for dual-modified files
(radar_system_top, usb_data_interface_ft2232h, mti_canceller,
radar_receiver_final), and CFAR pipeline from 2401f5f keeping p0's
CIC/DDC reset strategy.

2026-04-21 01:52:32 +05:45

..

constraints

fix(fpga): extend ADC hold waiver to include adc_or_p (F-0.1 follow-up)

2026-04-20 23:28:58 +05:45

formal

fix(rtl,gui,cosim,formal): adapt surrounding files for dual 16-pt FFT (follow-up to PR #33)

2026-04-06 23:15:50 +03:00

scripts

Revert "fix(fpga): F-0.9 option A — BUFIO+BUFR for 50T ft_clkout (SRCC pin)"

2026-04-20 21:47:19 +05:45

tb

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

.gitignore

CIC comb pipeline registers, BUFG sim guard, system TB fix, regression runner

2026-03-19 11:31:46 +02:00

ad9484_interface_400m.v

fix(fpga): F-0.1 wire AD9484 OR overrange pin into diagnostics

2026-04-20 15:48:34 +05:45

adc_clk_mmcm_integration.md

Gap 7 MMCM jitter cleaner + CIC comb CREG pipeline + XDC clock-name fix

2026-03-19 22:59:46 +02:00

adc_clk_mmcm.v

fix: FPGA timing margins (WNS +0.002→+0.080ns) + 11 bug fixes from code review

2026-04-14 00:08:26 +05:45

cdc_modules.v

fix(pre-bringup): second-batch P1/P2/P3 audit findings

2026-04-20 14:28:22 +05:45

cfar_ca.v

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

chirp_memory_loader_param.v

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

cic_decimator_4x_enhanced.v

fix(fpga): audit F-2026-04-20-A/B — CIC reset fan-out + BUFIO→BUFG max_delay

2026-04-20 20:20:43 +05:45

dac_interface_single.v

Migrate hardware platform from XC7A50T to XC7A200T-2FBG484I

2026-03-16 22:24:22 +02:00

ddc_400m.v

fix(pre-bringup): second-batch P1/P2/P3 audit findings

2026-04-20 14:28:22 +05:45

ddc_input_interface.v

Fix ddc_input_interface 18->16 bit overflow: add saturation at positive full scale

2026-03-16 18:14:06 +02:00

doppler_processor.v

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

edge_detector.v

Fix all 10 CDC bugs from report_cdc audit, add overflow guard in range_bin_decimator

2026-03-17 13:48:47 +02:00

fft_engine.v

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

fft_twiddle_16.mem

Fix staggered-PRF Doppler processing with dual 16-point FFTs

2026-03-27 23:05:28 +02:00

fft_twiddle_1024.mem

Replace FFT stubs with synthesizable radix-2 DIT engine, fix BRAM inference

2026-03-16 10:25:07 +02:00

fft_twiddle_2048.mem

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

fir_lowpass.v

fix(rtl): force FIR adder tree to fabric to free 30 DSPs for FFT butterfly on 50T

2026-04-07 14:45:47 +03:00

fpga_self_test.v

fix: FPGA timing margins (WNS +0.002→+0.080ns) + 11 bug fixes from code review

2026-04-14 00:08:26 +05:45

frequency_matched_filter.v

Convert async→sync reset on DSP/BRAM datapath registers for timing closure

2026-03-17 20:11:13 +02:00

latency_buffer.v

Phase 1 hardware bring-up prep: ILA debug probes, CDC waivers, programming scripts

2026-03-18 01:28:42 +02:00

long_chirp_lut.mem

Fix Bug #11 (platform SPI transmit-only), FPGA B2 (chirp BRAM migration), FPGA B3 (DSP48 pipelining)

2026-03-19 10:31:16 +02:00

long_chirp_seg0_i.mem

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

long_chirp_seg0_q.mem

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

long_chirp_seg1_i.mem

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

long_chirp_seg1_q.mem

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

matched_filter_multi_segment.v

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

matched_filter_processing_chain.v

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

mti_canceller.v

fix(pre-bringup): resolve P0 + quick-win P1 findings from 2026-04-19 audit

2026-04-20 13:48:36 +05:45

nco_400m_enhanced.v

fix(fpga): registered reset fan-out at 400 MHz; default USB to FT2232H

2026-04-18 20:34:52 +05:45

plfm_chirp_controller.v

E2E integration test + RTL fixes: mixer sequencing, USB data-pending flags, receiver toggle wiring (19/19 FPGA)

2026-03-20 01:45:00 +02:00

radar_mode_controller.v

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

radar_params.vh

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

radar_receiver_final.v

fix(fpga): F-0.1 wire AD9484 OR overrange pin into diagnostics

2026-04-20 15:48:34 +05:45

radar_system_top_50t.v

Revert "fix(fpga): move IBUF+BUFIO+BUFR into 50T wrapper (same scope as pad)"

2026-04-20 21:47:19 +05:45

radar_system_top_te0712_dev.v

Add TE0712/TE0701 split target with dedicated top, XDC, and build flow

2026-03-18 03:57:26 +02:00

radar_system_top_te0713_dev.v

Update heartbeat dev target: LVCMOS33 for Bank 16 FT601 compat, add comments

2026-03-19 16:47:59 +02:00

radar_system_top_te0713_umft601x_dev.v

feat(fpga): make FT2232H default USB interface, rewrite FT601 write FSM, add clock-loss watchdog

2026-04-16 16:18:52 +05:45

radar_system_top.v

Revert "fix(fpga): F-0.9 option A — BUFIO+BUFR for 50T ft_clkout (SRCC pin)"

2026-04-20 21:47:19 +05:45

radar_transmitter.v

Fix CDC reset domain bug (P0), strengthen testbenches with 31 structural assertions

2026-03-17 19:38:09 +02:00

range_bin_decimator.v

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

run_regression.sh

fix(fpga): registered reset fan-out at 400 MHz; default USB to FT2232H

2026-04-18 20:34:52 +05:45

rx_gain_control.v

feat(fpga): integrate 2048-pt FFT upgrade — non-conflicting RTL (wave 1/3)

2026-04-21 01:52:32 +05:45

short_chirp_i.mem

Regenerate chirp .mem files, add USB testbench, convert radar_system_tb to Verilog-2001

2026-03-16 19:53:40 +02:00

short_chirp_q.mem

Regenerate chirp .mem files, add USB testbench, convert radar_system_tb to Verilog-2001

2026-03-16 19:53:40 +02:00

usb_data_interface_ft2232h.v

feat(fpga): make FT2232H default USB interface, rewrite FT601 write FSM, add clock-loss watchdog

2026-04-16 16:18:52 +05:45

usb_data_interface.v

fix: clarify comments — AGC width, dual-USB docstring, BE datasheet ref

2026-04-16 17:51:09 +05:45

xfft_16.v

fix(test,docs): remove dead xfft_32 files, update test infra for dual-16 FFT, add regression guide

2026-04-07 02:51:48 +03:00