Jason 5f3002a4d1 merge(wave2): manual resolution of 6 shared files — fft-2048 × p0 audit ...

Hand-merged files modified on both fix/pre-bringup-audit-p0 and
feat/fft-2048-upgrade. Wave 1 (commit 60e49c7) took 20 files from fft
verbatim; this wave resolves the overlap.

- run_regression.sh: 3-way merge. Adopts fft's ${RECEIVER_RTL[@]} array
  refactor and drops the self-blessing golden pair from p0. Skip count
  bumped to 5.

- usb_data_interface.v (FT601/200T): p0 FSM + clock-loss watchdog kept
  wholesale; widened stream_control 3 -> 6 bits to carry fft's extended
  mode bits through the CDC sync chain and the 0xFF status word.

- mti_canceller.v: fft's BRAM-inferred 512-range-bin implementation as
  the base, with p0's F-6.3 saturation counter grafted onto the d1
  pipeline stage. Overflow detection uses the top-two-bits disagreement
  on diff_{i,q}_full (DATA_WIDTH+1 signed).

- radar_receiver_final.v: fft's 2048-pt / 512-bin structure + p0
  diagnostic plumbing (ADC overrange sticky+CDC, DDC diagnostics,
  tx_frame_start edge detector replacing chirp_counter frame sync,
  mti_saturation_count, range_decim_watchdog).

- radar_system_top.v: clean 3-way merge, orthogonal regions
  (+38 / -27).

- usb_data_interface_ft2232h.v (FT2232H/50T): fft's per-frame bulk BRAM
  rewrite kept wholesale. Ported two p0 items that are orthogonal to
  the write FSM:
    * ft_clk-loss watchdog (heartbeat + 2FF ASYNC_REG sync + 16-bit
      timeout) ORed into a 2FF sync'd ft_effective_reset_n for the FSM.
    * rd_cmd_complete flag so RD_DEASSERT can distinguish a legitimate
      3-byte completion from an ft_rxf_n abort that also zeros
      rd_byte_cnt.

Deliberately NOT taken from 2401f5f: cic_decimator_4x_enhanced.v and
ddc_400m.v reset-strategy changes. Those conflict with p0's shipped
registered-sync-reset + max_fanout=25 distribution, which is already
timing-clean on the production build.

2026-04-21 02:12:04 +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

…

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

…

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

…

adc_clk_mmcm.v

…

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

…

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

…

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

…

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

…

fft_twiddle_1024.mem

…

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

…

fpga_self_test.v

…

frequency_matched_filter.v

…

latency_buffer.v

…

long_chirp_lut.mem

…

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

merge(wave2): manual resolution of 6 shared files — fft-2048 × p0 audit

2026-04-21 02:12:04 +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

…

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

merge(wave2): manual resolution of 6 shared files — fft-2048 × p0 audit

2026-04-21 02:12:04 +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

…

radar_system_top_te0713_dev.v

…

radar_system_top_te0713_umft601x_dev.v

…

radar_system_top.v

merge(wave2): manual resolution of 6 shared files — fft-2048 × p0 audit

2026-04-21 02:12:04 +05:45

radar_transmitter.v

…

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

merge(wave2): manual resolution of 6 shared files — fft-2048 × p0 audit

2026-04-21 02:12:04 +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

…

short_chirp_q.mem

…

usb_data_interface_ft2232h.v

merge(wave2): manual resolution of 6 shared files — fft-2048 × p0 audit

2026-04-21 02:12:04 +05:45

usb_data_interface.v

merge(wave2): manual resolution of 6 shared files — fft-2048 × p0 audit

2026-04-21 02:12:04 +05:45

xfft_16.v

…