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https://github.com/NawfalMotii79/PLFM_RADAR.git
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Jason
89dc9156c7
mti_canceller previously armed has_previous and refreshed prev_chirp_was_long only when range_bin_d1 == NUM_RANGE_BINS - 1. range_bin_decimator can early-terminate a chirp before reaching the last bin (overflow guard at range_bin_decimator.v:306, watchdog at :314), so on every such chirp MTI never armed and stayed muted forever on every subsequent chirp until reset. Detect chirp boundary internally using bin-0 arrival after at least one non-zero bin in the prior chirp. effective_has_previous lifts has_previous=1 the cycle chirp_boundary fires so the new chirp's bin-0 is subtracted (read-before-write on prev[0] correctly returns the previous chirp's bin-0). prev_chirp_was_long now updates on every range_valid_d1 (no-op within a chirp; OLD value still visible at the chirp_boundary cycle for the waveform_changed compare). Pass-through clears saw_nonzero_bin_in_chirp so the first MTI-enabled chirp after a pass-through run is correctly muted. No port changes. tb_mti_canceller T13 added: feed a 32/64-bin partial chirp followed by a full chirp, verify the second chirp is NOT muted (would fail without the fix). MTI Canceller goes from 40 -> 43 checks, all passing. Local regression: 32/34 PASS (same as baseline; the two failing tests are pre-existing RX-NEW-3 FFT throughput).