diff --git a/APP_Framework/lib/SQLite/README.md b/APP_Framework/lib/SQLite/README.md
index a8f4dc2ae..3e68afcee 100644
--- a/APP_Framework/lib/SQLite/README.md
+++ b/APP_Framework/lib/SQLite/README.md
@@ -14,12 +14,15 @@ SQLite 是一个小型，快速，独立的高可靠性全功能 SQL 数据库
 | rtthread_io_methods.c    | rt-thread为sqlite提供的底层文件IO接口                            |
 | rtthread_mutex.c         | rt-thread为sqlite提供的互斥量操作接口                            |
 | rtthread_vfs.c           | rt-thread为sqlite提供的VFS(虚拟文件系统)接口                     |
+| xizi_io_methods.c        | xizi为sqlite提供的底层文件IO接口                                 |
+| xizi_mutex.c             | xizi为sqlite提供的互斥量操作接口                                 |
+| xizi_vfs.c               | xizi为sqlite提供的VFS(虚拟文件系统)接口                          |
 | dbhelper.c               | sqlite3操作接口封装，简化应用                                    |
 | dbhelper.h               | dbhelper头文件，向外部声明封装后的接口，供用户调用               |
 | student_dao.c            | 简单的DAO层例程，简单展示了对dbhelper的使用方法                  |
 | student_dao.h            | 数据访问对象对外接口声明，线程可通过调用这些接口完成对该表的操作 |
 
-## 获取
+## RT-Thread获取
 
 在ENV中配置如下
 
@@ -41,14 +44,39 @@ RT-Thread online packages  --->
 ## 依赖
 - RT-Thread 3.X+
 - DFS组件
+
+## XiZi获取
+
+在menuconfig中配置如下
+
+```c
+LIB_USING_SQLITE  ---> 
+        [*]   Enable SQLite example
+        (1024) Set SQL statements max length
+        (64) Set SQL database filename fullpath max length
+```
+
+配置项说明：
+
+| 名称                         | 说明                                                |
+| -----------------------------| --------------------------------------------------- |
+| Enable example               | 选择是否使能DAO层例程，例程是模拟了学生成绩录入查询 |
+| SQL statements max length    | SQL语句最大长度，请根据实际业务需求设置。           |
+| filename fullpath max length | SQL数据库文件名最大长度，请根据实际业务需求设置。           |
+
+## 依赖
+- XiZi_IIoT
+- shell线程栈不少于32KB
+- TF卡驱动支持，并挂载FATFS文件系统
+
 ## dbhelp接口说明
 
 dbhelp是对sqlite3操作接口的封装，目的是使用户更加简单地操作sqlite。
 
 ### 数据库文件完整路径
-数据库文件的默认存放完整路径是"/rt.db"，用户可根据实际需求在dbhelper.h中修改。
+数据库文件的默认存放完整路径是"/rt.db"或"xiuos.db"，用户可根据实际需求在dbhelper.h中修改。
 ```c
-#define DB_NAME "/rt.db"
+#define DB_NAME "/rt.db" 、"xiuos.db"
 ```
 ### 初始化
 dbhelp初始化，其中包含了sqlite的初始化及互斥量创建。用户无需再对数据库及锁初始化。
diff --git a/APP_Framework/lib/SQLite/dbhelper.c b/APP_Framework/lib/SQLite/dbhelper.c
index 0bed5866e..f31ef32fc 100644
--- a/APP_Framework/lib/SQLite/dbhelper.c
+++ b/APP_Framework/lib/SQLite/dbhelper.c
@@ -56,7 +56,7 @@ Modification:
 #endif
 
 #ifdef ADD_XIZI_FEATURES
-#define DEFAULT_DB_NAME "/xiuos.db"
+#define DEFAULT_DB_NAME "xiuos.db"
 #endif
 
 #ifdef ADD_RTTHREAD_FEATURES
@@ -98,7 +98,7 @@ int db_helper_init(void)
     ret = PrivMutexCreate(&db_mutex_lock, 0);
     if (ret < 0)
     {
-        printf("rt_mutex_create dbmtx failed!\n");
+        printf("mutex_create dbmtx failed!\n");
         return -1;
     }
     return 0;
diff --git a/APP_Framework/lib/SQLite/student_dao.c b/APP_Framework/lib/SQLite/student_dao.c
index 4ca974c54..992c6a8f1 100644
--- a/APP_Framework/lib/SQLite/student_dao.c
+++ b/APP_Framework/lib/SQLite/student_dao.c
@@ -570,12 +570,11 @@ static void list_by_score(int ls, int hs, enum order_type order)
     return;
 }
 
-static void stu(uint8_t argc, char **argv)
+static int stu(int argc, char *argv[])
 {
     if (argc < 2)
     {
         list_all();
-        return;
     }
     else
     {
@@ -706,15 +705,22 @@ static void stu(uint8_t argc, char **argv)
             PrivFree(s);
         }
     }
+    return 0;
 }
-PRIV_SHELL_CMD_FUNCTION(stu, student add del update query, PRIV_SHELL_CMD_FUNC_ATTR);
+PRIV_SHELL_CMD_FUNCTION(stu, student add del update query, PRIV_SHELL_CMD_MAIN_ATTR);
 
 static int create_student_tbl(void)
 {
-    int fd = 0;
+    int fd = -1;
+
+    //init sqlite3
+    db_helper_init();
+
     db_set_name("/stu_info.db");
-    fd = PrivOpen(db_get_name(), O_RDONLY);
+
+    fd = PrivOpen("/stu_info.db", O_RDONLY);
     printf(db_get_name());
+    printf(" fd %d\n", fd);
     if (fd < 0)
     {
         /* there is not the .db file.create db and table */
diff --git a/APP_Framework/lib/SQLite/xizi_port/xizi_io_methods.c b/APP_Framework/lib/SQLite/xizi_port/xizi_io_methods.c
index c40328ae2..67918ae9f 100644
--- a/APP_Framework/lib/SQLite/xizi_port/xizi_io_methods.c
+++ b/APP_Framework/lib/SQLite/xizi_port/xizi_io_methods.c
@@ -408,7 +408,7 @@ static int _xizi_io_sector_size(sqlite3_file *file_id)
 
 static int _xizi_io_device_characteristics(sqlite3_file *file_id)
 {
-    return 0;
+    return SQLITE_IOCAP_SAFE_APPEND;
 }
 
 /*
diff --git a/APP_Framework/lib/SQLite/xizi_port/xizi_mutex.c b/APP_Framework/lib/SQLite/xizi_port/xizi_mutex.c
index 1ac2b1f07..4175850fa 100644
--- a/APP_Framework/lib/SQLite/xizi_port/xizi_mutex.c
+++ b/APP_Framework/lib/SQLite/xizi_port/xizi_mutex.c
@@ -122,7 +122,7 @@ static sqlite3_mutex * _xizi_mtx_alloc(int id)
     {
         case SQLITE_MUTEX_FAST:
         case SQLITE_MUTEX_RECURSIVE:
-            p = PrivMalloc(sizeof(sqlite3_mutex));
+            p = sqlite3_malloc(sizeof(sqlite3_mutex));
 
             if (p != NULL) {
                 PrivMutexCreate(&p->mutex, 0);
diff --git a/APP_Framework/lib/SQLite/xizi_port/xizi_vfs.c b/APP_Framework/lib/SQLite/xizi_port/xizi_vfs.c
index 757cf381f..7bca033c0 100644
--- a/APP_Framework/lib/SQLite/xizi_port/xizi_vfs.c
+++ b/APP_Framework/lib/SQLite/xizi_port/xizi_vfs.c
@@ -101,7 +101,7 @@ int _gettimeofday(struct timeval *tp, void *ignore)
 
 static int _Access(const char *pathname, int mode)
 {
-    int fd;
+    int fd = -1;
 
     fd = PrivOpen(pathname, O_RDONLY);
 
diff --git a/Ubiquitous/XiZi_IIoT/fs/shared/src/iot-vfs.c b/Ubiquitous/XiZi_IIoT/fs/shared/src/iot-vfs.c
index 8d42a6f1d..2d3421d1a 100644
--- a/Ubiquitous/XiZi_IIoT/fs/shared/src/iot-vfs.c
+++ b/Ubiquitous/XiZi_IIoT/fs/shared/src/iot-vfs.c
@@ -449,7 +449,7 @@ int open(const char *path, int flags, ...)
     abspath = GetAbsolutePath(path);
     mp = GetMountPoint(abspath);
     if (mp == NULL) {
-        SYS_ERR("%s: mount point not found\n", __func__);
+        SYS_ERR("%s: mount point not found path %s abspath %s\n", __func__, path, abspath);
         ret = -EINVAL;
         goto err;
     }