From bd4edea20d5ddf3c22c083866001cc3030767361 Mon Sep 17 00:00:00 2001
From: helei <helei@nky.com>
Date: Sun, 9 Aug 2026 10:10:59 +0800
Subject: [PATCH] =?UTF-8?q?V1.4-Chinese=20BL=EF=BC=9A=E5=9B=9E=E9=80=80?=
 =?UTF-8?q?=E5=88=86=E6=94=AF=E8=B7=B3=E8=BD=AC=E5=89=8D=E6=A0=A1=E9=AA=8C?=
 =?UTF-8?q?APP=E6=9C=89=E6=95=88=E6=80=A7=EF=BC=8C=E4=BF=AE=E5=A4=8D?=
 =?UTF-8?q?=E5=8F=AA=E5=88=B7BL=E6=97=B6=E7=9B=B2=E8=B7=B3=E7=A9=BA?=
 =?UTF-8?q?=E7=89=87?=
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Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 V1.4-Chinese/STM32F103_BootLoader/m_app/ota_boot.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/V1.4-Chinese/STM32F103_BootLoader/m_app/ota_boot.c b/V1.4-Chinese/STM32F103_BootLoader/m_app/ota_boot.c
index a18f06f..f0c8596 100644
--- a/V1.4-Chinese/STM32F103_BootLoader/m_app/ota_boot.c
+++ b/V1.4-Chinese/STM32F103_BootLoader/m_app/ota_boot.c
@@ -538,11 +538,16 @@ void Start_BootLoader(void)
 		}
 	}
 
-	/* 3. 回退状态：直接跳转当前 APP1 */
+	/* 3. 回退状态：跳转当前 APP1（先校验，防止 APP 被擦除后跳入空片） */
 	if (info_ok && info.update_state == W25Q64_STATE_ROLLBACK)
 	{
-		IAP_ExecuteApp(Application_1_Addr);
-		return;
+		if (Verify_Firmware(Application_1_Addr, Application_Size))
+		{
+			IAP_ExecuteApp(Application_1_Addr);
+			return;
+		}
+		log_warn("[BL] 回退状态但 APP1 无效，清除 OTA 标志");
+		W25Q64_OTA_ClearNew();
 	}
 
 	/* 4. 没有 OTA 任务：直接启动 APP1 */