From aef9d4effe91e98fc0205e940aef8dbacc7782bf Mon Sep 17 00:00:00 2001
From: YuanHongbin <975559679@qq.com>
Date: Tue, 14 Jul 2026 17:24:52 +0800
Subject: [PATCH] =?UTF-8?q?feat:=20boot=E5=8D=87=E7=BA=A7=E5=90=8E?=
 =?UTF-8?q?=E9=80=9A=E7=9F=A5APP=E6=93=A6=E9=99=A4=E5=A4=96=E9=83=A8Flash?=
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升级开始时设置 AppFlag=APP_BOOT_UPGRADE_FLAG 写入BINFO_BASE

升级完成后不再清零 AppFlag，供APP启动时检测

dev_boot.h 新增 APP_BOOT_UPGRADE_FLAG(0x5A5A55A5) 定义
---
 App/app_update.c  | 3 ++-
 device/dev_boot.h | 3 +--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/App/app_update.c b/App/app_update.c
index 5dc374d..78efe35 100644
--- a/App/app_update.c
+++ b/App/app_update.c
@@ -84,7 +84,6 @@ static void update_on_download(uint8_t* frame, int len, uint8_t* pload, int size
 
                     if (crc_rom == g_update.cfg.Crc32Check)
                     {
-                        g_update.cfg.AppFlag = 0;
                         g_update.cfg.UpdateFlag = 0;
                         g_update.cfg.PackageNum = 0;
 
@@ -188,6 +187,8 @@ int app_update_entry(struct pt  *pt)
     if (g_update.cfg.UpdateFlag == APP_UPDATE_FLAG)
     {
         g_update.isNeedUpdate = 1;
+        g_update.cfg.AppFlag = APP_BOOT_UPGRADE_FLAG;
+        dev_boot_write_param(g_update.cfg);
     }
     else
     {
diff --git a/device/dev_boot.h b/device/dev_boot.h
index 4545252..e688f79 100644
--- a/device/dev_boot.h
+++ b/device/dev_boot.h
@@ -5,6 +5,7 @@
 
 #define	APP_START_FLAG						0x55AA5A5A
 #define	APP_UPDATE_FLAG						0xA5A5AA55
+#define	APP_BOOT_UPGRADE_FLAG					0x5A5A55A5
 
 #define	BOOT_BASE							(FLASH_BASE)
 #define	BOOT_SIZE							(4*FLASH_SECTOR_SIZE)
@@ -15,8 +16,6 @@
 #define BOOT_PARA_ADDRESS				    (APP_ADDRESS + APP_SIZE)
 #define	BOOT_PARA_SIZE					    (FLASH_SECTOR_SIZE)
 
-#define	APP_START_FLAG		0x55AA5A5A
-#define	APP_UPDATE_FLAG		0xA5A5AA55
 
 typedef struct {
 	uint32_t AppFlag;