mirror of
https://github.com/NawfalMotii79/PLFM_RADAR.git
synced 2026-06-08 14:44:56 +00:00
Jason
8865e9a0ef
RTL (P0 pre-bringup findings R-1/R-2/R-3/R-5/R-6): - mti_canceller: add use_long_chirp input and waveform-boundary mute so the long->short transition in mode 01 no longer subtracts across heterogeneous waveforms (R-1). Prev buffer is overwritten in-flight at the boundary so the next same-waveform chirp subtracts cleanly. - ad9484_interface_400m: 2FF sync of mmcm_locked into the 400 MHz domain before gating reset_n_gated (R-6). - cic_decimator_4x_enhanced: correct max_fanout narrative (R-3). - ad9484_interface_400m: strip stale pblock comment, note 3.0 ns max_delay instead (R-2). - mti_canceller / doppler_processor: 200T-20km WARNING banners flagging the broken 4096-bin path (R-5). 9-bit BRAM address aliases silently until rewritten. - adc_clk_mmcm.xdc: relax set_max_delay from 2.700 -> 3.000 ns, closes WNS with headroom on 50T build. - radar_receiver_final: wire use_long_chirp into mti_inst. Architecture-bump finalization (2048-pt range FFT, 512 range bins, 32 Doppler bins -> 16384 output cells per frame): - tb/cosim/radar_scene.py: FFT_SIZE 1024 -> 2048, RANGE_BINS 64 -> 512. - tb/gen_mf_golden_ref.py: N 1024 -> 2048. - Regenerate all affected hex goldens (MF cases 1-4, Doppler inputs + py goldens, receiver integration golden_doppler.mem 2048 -> 16384). - tb_radar_receiver_final: widen range_bin_out 6 -> 9 bits, bump GOLDEN_ENTRIES 2048 -> 16384, expand bitmaps/arrays to 512 bins, update all check messages and thresholds. - tb_mti_canceller, tb_fullchain_mti_cfar_realdata: tie/pass use_long_chirp so compile still works after RTL port add. Test-suite hardening (coverage audit findings): - tb_mti_canceller T12: 10 new assertions exercising R-1 waveform- boundary mute across a long/long/short/short/long sequence. Catches a regression that re-enables subtraction across the boundary. - tb_fir_lowpass: replace tautological check(1'b1, ...) on coefficient symmetry with a real hierarchical check coeff[k]===coeff[31-k]; replace always-pass overflow check with a well-driven (not X/Z) assertion on filter_overflow. - tb_matched_filter_processing_chain: replace three always-pass peak- bin placeholders with peak-to-mean-|out| > 2x ratio checks (catches flat/zero output that the old tautologies silently accepted). - tb_cdc_modules M2: replace always-pass narrow-pulse check with a well-defined-output assertion on the synchronizer. - tb_nco_400m: replace always-pass freq-switch check with a swing + no-X assertion across 200 post-switch samples. - tb_system_e2e G12.1: replace check(1, ...) with test_num > 20 so it catches a stalled TB that skipped prior groups. - tb_multiseg_cosim TEST 4: replace always-pass placeholder with a bitmap that asserts segment_request visited all 4 values. - tb_mf_chain_synth and tb_fullchain_mti_cfar_realdata: add DEPRECATED headers plus \$fatal guards (ifndef ALLOW_STALE_*) so they cannot be silently re-enabled in CI with stale 1024-bin goldens against current 2048-pt RTL. Regression: 32 passed, 0 failed. MTI TB grew 30 -> 39 checks; receiver integration grew 17 -> 18 checks with 16384/16384 golden match at tolerance +/- 2 LSB.