Jason 00fbab6c9d Achieve full timing closure on xc7a100tcsg324-1 at 400 MHz (0 violations) ...

Complete FPGA timing closure across all clock domains after 9 iterative
Vivado builds. WNS improved from -48.325ns to +0.018ns (107,886 endpoints).

RTL fixes for 400 MHz timing:
- NCO: 6-stage pipeline with DSP48E1 phase accumulator, registered LUT
  index (Fix D splits address decode from ROM read), distributed RAM
- CIC: explicit DSP48E1 PCOUT->PCIN cascade for 5 integrator stages,
  CREG=1 on integrator_0 to eliminate fabric->DSP setup violation
- DDC: 400 MHz reset synchronizer (async-assert/sync-deassert),
  active-high reset register for DSP48E1 RST ports, posedge output stage
- FIR: 5-stage binary adder tree pipeline (7-cycle latency)
- FFT: 5-cycle butterfly pipeline with registered twiddle index,
  XPM_MEMORY_TDPRAM for data storage
- XDC: CDC false paths, async reset false paths, CIC comb multicycle paths

Final Build 9 timing (all MET):
  adc_dco_p (400 MHz): WNS = +0.278ns
  clk_100m  (100 MHz): WNS = +0.018ns
  clk_120m_dac (120 MHz): WNS = +0.992ns
  ft601_clk_in (100 MHz): WNS = +5.229ns
  Cross-domain (adc_dco_p->clk_100m): WNS = +7.105ns

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

..

tb

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

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

ad9484_interface_400m.v

Fix 6 RTL files + add xfft_32 stub for successful Vivado synthesis

2026-03-15 17:37:59 +02:00

cdc_modules.v

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

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

chirp_lut_init.v

Add files via upload

2026-03-09 00:17:39 +00:00

chirp_memory_loader_param.v

Fix 6 RTL files + add xfft_32 stub for successful Vivado synthesis

2026-03-15 17:37:59 +02:00

cic_decimator_4x_enhanced.v

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

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

cntrt.xdc

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

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

dac_interface_single.v

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2026-03-09 00:17:39 +00:00

ddc_400m.v

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

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

ddc_input_interface.v

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2026-03-09 00:17:39 +00:00

doppler_processor.v

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

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

edge_detector.v

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2026-03-09 00:17:39 +00:00

fft_1024_forward.v

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2026-03-09 00:17:39 +00:00

fft_1024_inverse.v

Fix synthesis blockers in 9 RTL files for Vivado compatibility

2026-03-15 14:53:35 +02:00

fft_engine.v

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

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

fft_twiddle_32.mem

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

2026-03-16 10:25:07 +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

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

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

frequency_matched_filter.v

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2026-03-09 00:17:39 +00:00

latency_buffer_2159.v

Fix 6 RTL files + add xfft_32 stub for successful Vivado synthesis

2026-03-15 17:37:59 +02:00

level_shifter_interface.v

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2026-03-10 01:31:50 +00:00

long_chirp_seg0_i.mem

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2026-03-09 00:17:39 +00:00

long_chirp_seg0_q.mem

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2026-03-09 00:17:39 +00:00

long_chirp_seg1_i.mem

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2026-03-09 00:17:39 +00:00

long_chirp_seg1_q.mem

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2026-03-09 00:17:39 +00:00

long_chirp_seg2_i.mem

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2026-03-09 00:17:39 +00:00

long_chirp_seg2_q.mem

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2026-03-09 00:17:39 +00:00

long_chirp_seg3_i.mem

Add missing long_chirp_seg3 memory files for complete chirp waveform

2026-03-15 18:06:35 +02:00

long_chirp_seg3_q.mem

Add missing long_chirp_seg3 memory files for complete chirp waveform

2026-03-15 18:06:35 +02:00

lvds_to_cmos_400m.v

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2026-03-09 00:17:39 +00:00

matched_filter_multi_segment.v

Fix synthesis blockers in 9 RTL files for Vivado compatibility

2026-03-15 14:53:35 +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

nco_400m_enhanced.v

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

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

plfm_chirp_controller.v

Fix 6 RTL bugs in FPGA signal processing chain

2026-03-15 06:14:04 +02:00

radar_mode_controller.v

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

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

radar_receiver_final.v

Fix 6 RTL files + add xfft_32 stub for successful Vivado synthesis

2026-03-15 17:37:59 +02:00

radar_system_tb.v

Create radar_system_tb.v

2026-03-10 01:35:26 +00:00

radar_system_top.v

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

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

radar_transmitter.v

Add files via upload

2026-03-09 00:17:39 +00:00

range_bin_decimator.v

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

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

short_chirp_i.mem

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2026-03-09 00:17:39 +00:00

short_chirp_q.mem

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2026-03-09 00:17:39 +00:00

usb_data_interface.v

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

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

usb_packet_analyzer.v

Fix synthesis blockers in 9 RTL files for Vivado compatibility

2026-03-15 14:53:35 +02:00

xfft_32.v

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

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