Jason d36a4c93e2 fix(fpga): audit F-2026-04-20-A/B — CIC reset fan-out + BUFIO→BUFG max_delay ...

A: cic_decimator_4x_enhanced.v reset_h max_fanout 50→25. More replicas
mean each drives fewer DSP48 RSTB loads, letting Vivado place each
closer to its consumers. Targets the rep__24 → comb_reg[4]/RSTB path
that failed clk_mmcm_out0 intra by -10 ps (1.4 ns of pure routing).

B: adc_clk_mmcm.xdc BUFIO↔BUFG max_delay 2.500→2.700 ns. The 2.5 ns
target was tighter than achievable for the IDDR (ILOGIC) → FDRE (fabric
SLICE) re-registration. The effective window is the BUFIO↔BUFG phase
relationship (not the clock period), so 2.7 ns remains safe. Fixes the
adc_dco_p→clk_mmcm_out0 inter path -113 ps failure on lane 7.

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

..

constraints

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

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

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

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

tb

test(fpga): F-3.2 add DDC cosim fuzz runner with seed sweep

2026-04-20 15:48:34 +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

Pipeline CFAR noise computation: break critical path for timing closure

2026-03-20 05:24:08 +02:00

chirp_memory_loader_param.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

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

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

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

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

FFT engine: merge SHIFT into WRITE (5→4 cycle butterfly, 20% throughput) + barrel-shift twiddle index

2026-03-20 00:20:59 +02:00

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

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

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

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

long_chirp_seg0_q.mem

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

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

long_chirp_seg1_i.mem

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

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

long_chirp_seg1_q.mem

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

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

long_chirp_seg2_i.mem

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

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

long_chirp_seg2_q.mem

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

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

long_chirp_seg3_i.mem

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

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

long_chirp_seg3_q.mem

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

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

matched_filter_multi_segment.v

Fix matched filter synth errors: overlap_copy_count part-select width, add FSM default

2026-03-19 20:53:29 +02:00

matched_filter_processing_chain.v

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

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

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

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

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

fix(fpga): wire F-0.1 adc_or_p/n through 50T wrapper + remove xdc control-flow

2026-04-20 16:08:13 +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

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

2026-04-20 15:48:34 +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

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

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

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

2026-04-13 23:35:10 +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