PLFM_RADAR

History

Jason 7742b517b6 fix(fpga): implement 5 P0 invariant fixes with adversarial testbenches

Fixes 5 critical cross-layer invariant violations found during
system-level analysis. Each fix has a dedicated adversarial testbench
that actively tries to break the fix under race conditions, reset
mid-operation, overflow, and pathological input patterns.

RTL fixes:
- Fix #1: Replace flawed cdc_adc_to_processing with Gray-coded async
  FIFO (cdc_async_fifo) for DDC 400->100 MHz CDC path. Pre-fetch
  show-ahead architecture with CDC-safe registered reads.
- Fix #2: XOR toggle detection for mc_new_chirp in matched filter
  (cross-clock-domain safe vs level-sensitive).
- Fix #3: ST_WAIT_LISTEN state with configurable listen_delay to
  prevent matched filter re-trigger during chirp dead time.
- Fix #4: Overlap-save output trim in matched filter to suppress
  circular convolution artifacts at segment boundaries.
- Fix #7: Falling-edge frame_complete pulse in doppler_processor
  (was stuck high, causing continuous AGC resets).

RTL cleanup:
- Refactor CDC synchronizer arrays from memory arrays to scalar regs
  for explicit ASYNC_REG flop naming and synthesis constraint clarity.

Testbenches (70 checks total, all passing):
- tb_p0_async_fifo.v: 20 checks (fill, overflow, reset, streaming,
  show-ahead capacity, pathological data patterns)
- tb_p0_mf_adversarial.v: 33 checks (toggle detection, listen state,
  overlap trim, rapid chirp sequences, reset recovery)
- tb_p0_frame_pulse.v: 17 checks (pulse width, idle behavior,
  processing duration sweep, regression vs old stuck-high bug)

Regression: 24/24 pass (--quick), 57/57 existing CDC tests pass.
Golden references updated for doppler output timing change.

2026-04-17 01:53:06 +05:45

cosim

fix(fpga): implement 5 P0 invariant fixes with adversarial testbenches

2026-04-17 01:53:06 +05:45

golden

fix(fpga): implement 5 P0 invariant fixes with adversarial testbenches

2026-04-17 01:53:06 +05:45

ad9484_interface_400m_stub.v

Fix multi-seg/chain handshake deadlock + add radar_receiver_final integration test (10/10 PASS)

2026-03-16 18:51:08 +02:00

cic_dc_output.csv

Achieve timing closure: DSP48E1 pipelines, 4-stage NCO, 28-bit CIC, ASYNC_REG

2026-03-16 01:02:07 +02:00

cic_impulse_output.csv

Achieve timing closure: DSP48E1 pipelines, 4-stage NCO, 28-bit CIC, ASYNC_REG

2026-03-16 01:02:07 +02:00

cic_sine_passband.csv

Achieve timing closure: DSP48E1 pipelines, 4-stage NCO, 28-bit CIC, ASYNC_REG

2026-03-16 01:02:07 +02:00

ddc_120mhz_output.csv

Achieve timing closure: DSP48E1 pipelines, 4-stage NCO, 28-bit CIC, ASYNC_REG

2026-03-16 01:02:07 +02:00

fir_dc_output.csv

Add Phase 0.5 DDC co-simulation suite: bit-accurate Python model, scene generator, and 5/5 scenario validation

2026-03-16 16:01:40 +02:00

fir_impulse_output.csv

Add Phase 0.5 DDC co-simulation suite: bit-accurate Python model, scene generator, and 5/5 scenario validation

2026-03-16 16:01:40 +02:00

fir_sine_passband.csv

Add Phase 0.5 DDC co-simulation suite: bit-accurate Python model, scene generator, and 5/5 scenario validation

2026-03-16 16:01:40 +02:00

gen_mf_golden_ref.py

fix: enforce strict ruff lint (17 rule sets) across entire repo

2026-04-12 14:21:03 +05:45

mf_golden_out_i_case1.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_out_i_case2.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_out_i_case3.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_out_i_case4.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_out_q_case1.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_out_q_case2.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_out_q_case3.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_out_q_case4.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_ref_i_case1.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_ref_i_case2.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_ref_i_case3.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_ref_i_case4.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_ref_q_case1.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_ref_q_case2.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_ref_q_case3.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_ref_q_case4.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_sig_i_case1.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_sig_i_case2.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_sig_i_case3.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_sig_i_case4.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_sig_q_case1.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_sig_q_case2.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_sig_q_case3.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_sig_q_case4.hex

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_golden_summary.txt

Add 3 missing FPGA modules with enhanced testbenches (168/168 pass)

2026-03-15 13:37:10 +02:00

mf_pipeline_output.csv

Add 8 Verilog testbenches with full coverage (144/144 pass)

2026-03-15 06:14:11 +02:00

nco_1mhz_output.csv

Achieve timing closure: DSP48E1 pipelines, 4-stage NCO, 28-bit CIC, ASYNC_REG

2026-03-16 01:02:07 +02:00

nco_120mhz_output.csv

Achieve timing closure: DSP48E1 pipelines, 4-stage NCO, 28-bit CIC, ASYNC_REG

2026-03-16 01:02:07 +02:00

nco_freq_switch.csv

Achieve timing closure: DSP48E1 pipelines, 4-stage NCO, 28-bit CIC, ASYNC_REG

2026-03-16 01:02:07 +02:00

nco_quadrature.csv

Achieve timing closure: DSP48E1 pipelines, 4-stage NCO, 28-bit CIC, ASYNC_REG

2026-03-16 01:02:07 +02:00

radar_system_tb.v

feat(usb): add FT2232H USB 2.0 interface for 50T production board

2026-04-07 19:22:16 +03:00

tb_ad9484_xsim.v

Add new testbenches and fix USB clock forwarding test

2026-03-16 22:24:34 +02:00

tb_cdc_modules.v

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

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

tb_cfar_ca.v

Integrate CA-CFAR detector: replace fixed-threshold comparator with adaptive sliding-window CFAR engine (22/22 regression PASS)

2026-03-20 04:57:34 +02:00

tb_chirp_contract.v

Add 8 Verilog testbenches with full coverage (144/144 pass)

2026-03-15 06:14:11 +02:00

tb_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

tb_cic_decimator.v

Add 8 Verilog testbenches with full coverage (144/144 pass)

2026-03-15 06:14:11 +02:00

tb_ddc_400m.v

Production fixes 1-7: detection bugs, cfar→threshold rename, digital gain control, Doppler mismatch protection, decimator watchdog, bypass_mode dead code removal, range-mode register (21/21 regression PASS)

2026-03-20 04:38:35 +02:00

tb_ddc_cosim.v

2026-03-20 04:38:35 +02:00

tb_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

tb_doppler_cosim.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

tb_doppler_realdata.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

tb_edge_detector.v

Add 8 Verilog testbenches with full coverage (144/144 pass)

2026-03-15 06:14:11 +02:00

tb_fft_engine.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

tb_fir_lowpass.v

FIR DSP48 pipelining (BREG+MREG) + matched filter BRAM migration with overlap cache

2026-03-19 20:39:01 +02:00

tb_fpga_self_test.v

Add radar dashboard GUI with replay mode for real ADI CN0566 data visualization, FPGA self-test module, and co-sim npy arrays

2026-03-20 19:02:06 +02:00

tb_freq_matched_filter.v

Add 8 Verilog testbenches with full coverage (144/144 pass)

2026-03-15 06:14:11 +02:00

tb_fullchain_mti_cfar_realdata.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

tb_fullchain_realdata.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

tb_latency_buffer.v

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

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

tb_matched_filter_processing_chain.v

Fix matched filter golden test paths (40/40 pass, was 37/40)

2026-03-19 12:20:37 +02:00

tb_mf_chain_synth.v

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

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

tb_mf_cosim.v

Add matched-filter co-simulation: bit-perfect validation of Python model vs synthesis-branch RTL (4/4 scenarios, correlation=1.0)

2026-03-16 16:23:01 +02:00

tb_mti_canceller.v

Integrate MTI canceller and DC notch filter for ground clutter removal

2026-03-20 16:39:17 +02:00

tb_multiseg_cosim.v

Fix overlap-save: fill full 1024-sample buffer per segment, zero-pad last partial segment

2026-03-16 19:15:23 +02:00

tb_nco_400m.v

Achieve full timing closure on xc7a100tcsg324-1 at 400 MHz (0 violations)

2026-03-16 15:02:35 +02:00

tb_nco_xsim.v

Fix NCO XSim test 12: widen zero-crossing range for DSP48E1 quantization

2026-03-16 23:23:06 +02:00

tb_p0_async_fifo.v

fix(fpga): implement 5 P0 invariant fixes with adversarial testbenches

2026-04-17 01:53:06 +05:45

tb_p0_frame_pulse.v

fix(fpga): implement 5 P0 invariant fixes with adversarial testbenches

2026-04-17 01:53:06 +05:45

tb_p0_mf_adversarial.v

fix(fpga): implement 5 P0 invariant fixes with adversarial testbenches

2026-04-17 01:53:06 +05:45

tb_radar_mode_controller.v

Gap 2 GUI Settings: runtime chirp timing, stream control gating, status readback (18/18 FPGA, 20/20 MCU)

2026-03-19 23:54:48 +02:00

tb_radar_receiver_final.v

fix: use authoritative tx frame signal for frame sync, consistent ad9523 error path

2026-04-16 00:33:27 +05:45

tb_range_bin_decimator.v

2026-03-20 04:38:35 +02:00

tb_range_fft_realdata.v

Real-data co-simulation: range FFT, Doppler, full-chain all 2048/2048 exact match

2026-03-20 03:19:22 +02:00

tb_rx_gain_control.v

fix: 9 bugs from code review — RTL sign-ext & snapshot, thread safety, protocol fixes

2026-04-13 23:35:10 +05:45

tb_system_e2e.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

tb_threshold_detector.v

2026-03-20 04:38:35 +02:00

tb_usb_data_interface.v

feat: hybrid AGC (FPGA phases 1-3 + GUI phase 6) with timing fix

2026-04-13 19:24:11 +05:45