mirror of
https://github.com/NawfalMotii79/PLFM_RADAR.git
synced 2026-06-08 22:47:16 +00:00
Jason
a1a8fa7107
Replaces plfm_chirp_controller_enhanced (5-state FSM with hardcoded LONG/SHORT timings + 60-entry inline short LUT) with plfm_chirp_controller_v2, a pure DAC playback driver: IDLE -> CHIRP -> IDLE keyed off a 1-cycle dst_chirp_valid pulse, with sample count selected by dst_wave_sel (SHORT=120 / MEDIUM=600 / LONG=3600). Inter-chirp timing (LISTEN, GUARD, frame boundaries) is now owned exclusively by chirp_scheduler. Scheduler -> TX bridge: cdc_async_fifo (Cummings style #2, WIDTH=2 DEPTH=4) crosses {wave_sel} from clk_100m to clk_120m_dac, with chirp_pulse as src_valid. frame_pulse rides a separate toggle CDC for chirp_counter clear and the new_chirp_frame status output. mixers_enable now also gates the scheduler so it stays in S_IDLE while the radar is "off" — without this gate the first chirp_pulse fires at reset and gets dropped before mixers come up. Files: - NEW plfm_chirp_controller_v2.v DAC playback driver (3 LUTs, FSM) - DEL plfm_chirp_controller.v legacy controller (382 lines) - DEL long_chirp_lut.mem legacy LUT (3600 lines), replaced by tx_long_lut.mem from PR-B - chirp_scheduler.v + mixers_enable input (master quiesce) - radar_receiver_final.v + sched_*_out output ports + mixers_enable_100m - radar_system_top.v wire sched_*_out -> tx_inst.sched_*; pass stm32_mixers_enable_100m to rx_inst - radar_transmitter.v full rewrite: drop new_chirp edge detector + toggle CDC, instantiate cdc_async_fifo for {wave_sel}, toggle CDC for frame_pulse, plfm_chirp_controller_v2 in place of _enhanced - tb/tb_chirp_controller.v + tb/tb_chirp_contract.v rewritten for v2 contract (43/43 unit + 10/10 contract green) - tb/tb_radar_receiver_final.v + .mixers_enable_100m(1'b1) pin - run_regression.sh, scripts/200t/build_200t.tcl file-list bumped Test summary: - tb_chirp_controller_v2: 43/43 PASS - tb_chirp_contract: 10/10 contracts upheld - tb_rxb_fullchain: peak 24033 ~80x (parity with PR-D) - tb_mti_canceller: 43/43 PASS - tb_system_e2e: 33/49 (1 new vs 34/49 PR-D baseline: G2.2 new_chirp_frame, intentional v2 frame-pulse semantics — fires once per Doppler frame instead of once per stm32 chirp toggle. TB needs widening in PR-H to wait the full frame.)