Updates

mipi_test_interactive.py

@@ -1535,37 +1535,30 @@ def run_interactive_test() -> None:
 
 def run_continuous_test() -> None:
     """
-    Continuous LP capture loop — no kiosk restart between iterations.
+    Continuous LP capture loop — pipeline restart per iteration.
 
-    Designed for periodic flicker that repeats roughly every second once the
-    display pipeline has started.  The kiosk is started once; the scope
-    re-arms on the NORMAL LP trigger (VBLANK LP-11 → LP-01 falling edge on
-    Ch3) after each capture, effectively sampling one random display frame
-    every ~7 s.
+    The pipeline (kiosk) is stopped and restarted on every iteration so the
+    scope captures the startup LP-11→LP-01 transition that triggers the flicker.
+    The scope is configured and armed BEFORE _start_video() is called so that
+    the first HS burst after pipeline load is always captured.
 
-    With flicker on ~1/60 frames the expected time to first catch is
-    ~60 × 7 s ≈ 7 minutes of unattended running.
+    Sequence per iteration:
+      1. _stop_video()            — tear down pipeline
+      2. _configure_for_lp()     — set scope channels + trigger (takes ~400 ms)
+      3. _start_video()           — reload pipeline (LP transition fires ~1-2 s later)
+      4. _arm_and_wait()          — scope captures first LP-11→LP-01 on Ch3
+      5. Transfer + LP analysis
+      6. If suspect: LP bit decode + byte comparison vs last clean capture
 
-    When the LP rule-based detector flags a suspect:
-      • The LP file already on disk (10 GSa/s, 100 ps/sample) is decoded
-        directly using single-ended CLK+/DAT0+ thresholds — no extra capture.
-      • proto_decoder checks the HS-SYNC byte position (misalignment) and the
-        Lane 0 pixel content (corruption).
-      • compare_lp_captures() shows byte-level diffs vs the last clean capture.
-
-    Press Ctrl+C to stop.  No report is written (raw LP/proto CSVs are kept).
+    Press Ctrl+C to stop.  No HTML report is written; raw LP CSVs are kept in data/.
     """
     import proto_decoder as _pd
 
     print("\n===== CONTINUOUS CAPTURE MODE =====")
-    print("Kiosk starts once.  Scope re-arms on each VBLANK trigger (no restart).")
-    print("LP-only per iteration; LP bit decode fires directly on LP suspect files.")
+    print("Pipeline restart per iteration — captures startup LP transition.")
+    print("LP bit decode fires automatically on flicker suspects.")
     print("Press Ctrl+C to stop.\n")
 
-    _start_video()
-    print("Waiting 5 s for display pipeline to stabilise...")
-    time.sleep(5.0)
-
     iteration       = 1
     clean_count     = 0
     flicker_count   = 0
@@ -1575,11 +1568,20 @@ def run_continuous_test() -> None:
         while True:
             ts = datetime.now().strftime("%Y%m%d_%H%M%S")
 
-            # ── LP capture ──────────────────────────────────────────────────
+            # ── Stop pipeline, configure scope, then restart pipeline ─────────
+            _stop_video()
+            time.sleep(0.3)
+
+            # Configure scope while pipeline is down — scope will be ready before
+            # the first LP edge fires after _start_video().
             _configure_for_lp()
             _set_timebase(LP_SCALE, LP_POINTS)
             scope.write(f":TIMebase:POSition {LP_TRIG_OFFSET:.2E}")
-            ok = _arm_and_wait(timeout=5)
+
+            _start_video()
+
+            # ── LP capture on startup transition ─────────────────────────────
+            ok = _arm_and_wait(timeout=10)
             scope.write(":TIMebase:POSition 0")
             _restore_hs_config()
 
@@ -1598,7 +1600,7 @@ def run_continuous_test() -> None:
                 iteration += 1
                 continue
 
-            # ── LP analysis (quiet) ──────────────────────────────────────────
+            # ── LP analysis ──────────────────────────────────────────────────
             lp_summaries, suspects = _analyze_lp_files(ts, iteration)
 
             if not suspects:
@@ -1662,7 +1664,7 @@ def main_menu() -> None:
         print("3. CONFIGURE PSU (DEFAULT 24V / 1.5A)")
         print("4. PSU OUTPUT ON/OFF (CH1)")
         print("5. START INTERACTIVE FLICKER TEST  (kiosk restart per iteration)")
-        print("6. START CONTINUOUS CAPTURE TEST   (no restart; LP bit decode on flicker)")
+        print("6. START CONTINUOUS CAPTURE TEST   (no restart; proto decode on flicker)")
         print("7. EXIT")
 
         choice = input("\nSELECT OPTION (1-7): ").strip()