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https://github.com/NawfalMotii79/PLFM_RADAR.git
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Jason
53c7f416a7
Bug: 16-bit detect_count was reset only on power-on; increments at three sites (ST_IDLE/ST_BUFFER simple-threshold paths and ST_CFAR_CMP) accumulate across frames. At 178 fps with even 2-3 average detections per frame the counter wraps in 100-180 seconds, breaking any rate-based host telemetry or health check that reads it. Fix: add `detect_count <= 16'd0` in ST_DONE so the counter represents "detections this frame" instead of cumulative-since-boot. Updated $display wording from "total detections" to "frame detections". T13 flipped from "count keeps growing" to "identical-scene frames produce identical counts" (the actual contract a per-frame counter must satisfy). TB snapshots detect_count during ST_DONE because cfar_busy only goes low on ST_IDLE entry — after the reset has fired. Verification: tb_cfar_ca 24/24 PASS, quick regression 31/31 PASS. Note: detect_count output port is now "live" (accumulates during frame, 0 between frames). Audit confirmed no current host telemetry consumes this port. If future host code needs a stable last-frame total, add a detect_count_last_frame snapshot register then.