From df8e59803a131b83385e78d2a58c025527731930 Mon Sep 17 00:00:00 2001
From: wangfq <wangfq@collectpublish.net>
Date: Mon, 29 Jun 2026 10:48:48 +0800
Subject: [PATCH] =?UTF-8?q?tune:=20=E5=86=BB=E7=BB=93=E8=B6=85=E6=97=B6=20?=
 =?UTF-8?q?30s=E2=86=9210s=20(FREEZE=5FTIMEOUT=203000=E2=86=921000)?=
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---
 utilities/at32f421_freertos_demo/inc/TaskLoop.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utilities/at32f421_freertos_demo/inc/TaskLoop.h b/utilities/at32f421_freertos_demo/inc/TaskLoop.h
index 282d16e..6d4e557 100644
--- a/utilities/at32f421_freertos_demo/inc/TaskLoop.h
+++ b/utilities/at32f421_freertos_demo/inc/TaskLoop.h
@@ -38,7 +38,7 @@
 #define   ALFA_FAST       128           // 快速 IIR α = 128/256 = 0.5  (@10ms → τ≈28ms, 用于检测)
 #define   MAX_SLOPE_RATE  5             // 斜率限幅: 单次最大变化 5% (物理限制, 拒绝 EMI 尖峰)
 #define   ENTRY_CONFIRM   3             // 进入确认: 连续 N 次低于阈值才判定有车
-#define   FREEZE_TIMEOUT  3000          // 基线冻结超时: ~30s @ 10ms/tick, 持续偏高后强制更新基线
+#define   FREEZE_TIMEOUT  1000          // 基线冻结超时: ~10s @ 10ms/tick, 持续偏高且稳定后强制更新基线
 #define   FREEZE_STABILITY_RATE  2       // 冻结稳定性窗口: 参考值的 ±2% (CAPVD 需在此范围内才累计超时)
 
 /*===========================================================================