diff --git a/components/external/SQLite-3.8.1/SQLiteLib/README b/components/external/SQLite-3.8.1/SQLiteLib/README
index 6dc72c888..3fcb18799 100644
--- a/components/external/SQLite-3.8.1/SQLiteLib/README
+++ b/components/external/SQLite-3.8.1/SQLiteLib/README
@@ -10,6 +10,8 @@
     * SQLite compile macro
     */
     #define RT_USING_SQLITE
+2.
+    关注SQLite目录下的src/sqlite_config_rtthread.h
     #define SQLITE_MINIMUM_FILE_DESCRIPTOR  0
     #define SQLITE_OMIT_LOAD_EXTENSION 1 
     #define SQLITE_OMIT_WAL 
@@ -20,11 +22,11 @@
     #define SQLITE_THREADSAFE 1
     #define HAVE_READLINE 0 
     #define NDEBUG
-    #define _HAVE_SQLITE_CONFIG_H 
+    #define _HAVE_SQLITE_CONFIG_H
     #define BUILD_sqlite
-    #define SQLITE_OS_OTHER 1 
-    #define SQLITE_OS_RTT 1
-2.
+    #define SQLITE_OS_OTHER 1
+    #define SQLITE_OS_RTTHREAD 1
+3.
     用test目录下的test10.c来进行测试.
     推荐用mini2440bsp，因为板子的ram较大。
 
diff --git a/components/external/SQLite-3.8.1/SQLiteLib/sqlite3.c b/components/external/SQLite-3.8.1/SQLiteLib/sqlite3.c
index 778e79928..789d6d1f4 100644
--- a/components/external/SQLite-3.8.1/SQLiteLib/sqlite3.c
+++ b/components/external/SQLite-3.8.1/SQLiteLib/sqlite3.c
@@ -25,6 +25,71 @@
 #ifndef SQLITE_API
 # define SQLITE_API
 #endif
+/************** Begin file sqlite_config_rtthread.h **************************/
+#ifndef _SQLITE_CONFIG_RTTHREAD_H_
+#define _SQLITE_CONFIG_RTTHREAD_H_
+/*
+* SQLite compile macro
+*/
+#ifndef SQLITE_MINIMUM_FILE_DESCRIPTOR
+#define SQLITE_MINIMUM_FILE_DESCRIPTOR  0
+#endif
+
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
+#define SQLITE_OMIT_LOAD_EXTENSION 1
+#endif
+
+//#ifndef #define SQLITE_OMIT_WAL
+#define SQLITE_OMIT_WAL
+//#endif
+
+#ifndef SQLITE_RTTHREAD_NO_WIDE
+#define SQLITE_RTTHREAD_NO_WIDE 1
+#endif
+
+#ifndef SQLITE_ENABLE_LOCKING_STYLE
+#define SQLITE_ENABLE_LOCKING_STYLE 0
+#endif
+
+#ifndef SQLITE_DISABLE_LOCKING_STYLE
+#define SQLITE_DISABLE_LOCKING_STYLE 1
+#endif
+
+#ifndef SQLITE_TEMP_STORE
+#define SQLITE_TEMP_STORE 1
+#endif
+
+#ifndef SQLITE_THREADSAFE
+#define SQLITE_THREADSAFE 1
+#endif
+
+#ifndef HAVE_READLINE
+#define HAVE_READLINE 0
+#endif
+
+#ifndef NDEBUG
+#define NDEBUG
+#endif
+
+#ifndef _HAVE_SQLITE_CONFIG_H
+#define _HAVE_SQLITE_CONFIG_H
+#endif
+
+#ifndef BUILD_sqlite
+#define BUILD_sqlite
+#endif
+
+#ifndef SQLITE_OS_OTHER
+#define SQLITE_OS_OTHER 1
+#endif
+
+#ifndef SQLITE_OS_RTTHREAD
+#define SQLITE_OS_RTTHREAD 1
+#endif
+
+#endif
+
+/************** End of sqlite_config_rtthread.h ******************************/
 /************** Begin file sqlite3.h *****************************************/
 /*
 ** 2001 September 15
@@ -22649,6 +22714,7 @@ SQLITE_PRIVATE const char *sqlite3OpcodeName(int i){
 #if SQLITE_OS_RTTHREAD               /* This file is used for rt-thread only */
 
 /* #include <rtthread.h> */
+#include <dfs_posix.h>
 
 /*
 ** Include code that is common to all os_*.c files
@@ -22863,6 +22929,51 @@ SQLITE_API int sqlite3_open_file_count = 0;
 /************** End of os_common.h *******************************************/
 /************** Continuing where we left off in os_rtthread.c ****************/
 
+#ifndef RT_USING_NEWLIB
+
+#ifndef EINTR
+#define EINTR        4  /* Interrupted system call */
+#endif
+
+#ifndef ENOLCK
+#define ENOLCK      46  /* No record locks available */
+#endif
+
+#ifndef EACCES
+#define EACCES      13  /* Permission denied */
+#endif
+
+#ifndef EPERM
+#define EPERM        1  /* Operation not permitted */
+#endif
+
+#ifndef ETIMEDOUT
+#define ETIMEDOUT   145 /* Connection timed out */
+#endif
+
+#ifndef ENOTCONN
+#define ENOTCONN    134 /* Transport endpoint is not connected */
+#endif
+
+#if defined(__GNUC__) || defined(__ADSPBLACKFIN__)
+int _gettimeofday(struct timeval *tp, void *ignore) __attribute__((weak));
+int _gettimeofday(struct timeval *tp, void *ignore)
+#elif defined(__CC_ARM)
+__weak int _gettimeofday(struct timeval *tp, void *ignore)
+#elif defined(__IAR_SYSTEMS_ICC__)
+    #if __VER__ > 540
+    __weak
+    #endif
+int _gettimeofday(struct timeval *tp, void *ignore)
+#else
+int _gettimeofday(struct timeval *tp, void *ignore)
+#endif
+{
+    return 0;
+}
+
+#endif /* RT_USING_NEWLIB */
+
 /*
 ** Compiling and using WAL mode requires several APIs that are not
 ** available in rt-thread.
@@ -23019,7 +23130,7 @@ static int sqlite3_os_type = 0;
 #  define SYSCALL sqlite3_syscall_ptr
 #endif
 
-#include <dfs_posix.h>
+/* #include <dfs_posix.h> */
 
 static int _Access(const char *pathname, int mode)
 {
@@ -23110,10 +23221,10 @@ static struct rtthread_syscall {
 #define osFstat     ((int(*)(int,struct stat*))aSyscall[5].pCurrent)
 
   { "read",         (sqlite3_syscall_ptr)read,       0  },
-#define osRead      ((ssize_t(*)(int,void*,size_t))aSyscall[6].pCurrent)
+#define osRead      ((int(*)(int,void*,size_t))aSyscall[6].pCurrent)
 
   { "write",        (sqlite3_syscall_ptr)write,      0  },
-#define osWrite     ((ssize_t(*)(int,const void*,size_t))aSyscall[7].pCurrent)
+#define osWrite     ((int(*)(int,const void*,size_t))aSyscall[7].pCurrent)
 
   { "unlink",       (sqlite3_syscall_ptr)unlink,           0 },
 #define osUnlink    ((int(*)(const char*))aSyscall[8].pCurrent)
@@ -23465,9 +23576,9 @@ static int sqliteErrorFromPosixError(int posixError, int sqliteIOErr) {
     return SQLITE_OK;
 #endif
 
-  case EAGAIN:
+  case DFS_STATUS_EAGAIN:
   case ETIMEDOUT:
-  case EBUSY:
+  case DFS_STATUS_EBUSY:
   case EINTR:
   case ENOLCK:
     /* random NFS retry error, unless during file system support
@@ -23506,17 +23617,17 @@ static int sqliteErrorFromPosixError(int posixError, int sqliteIOErr) {
     /* invalid fd, unless during file system support introspection, in which
      * it actually means what it says */
 #endif
-  case EIO:
-  case EBADF:
-  case EINVAL:
+  case DFS_STATUS_EIO:
+  case DFS_STATUS_EBADF:
+  case DFS_STATUS_EINVAL:
   case ENOTCONN:
-  case ENODEV:
-  case ENXIO:
-  case ENOENT:
+  case DFS_STATUS_ENODEV:
+  case DFS_STATUS_ENXIO:
+  case DFS_STATUS_ENOENT:
 #ifdef ESTALE                     /* ESTALE is not defined on Interix systems */
   case ESTALE:
 #endif
-  case ENOSYS:
+  case DFS_STATUS_ENOSYS:
     /* these should force the client to close the file and reconnect */
 
   default:
@@ -23573,11 +23684,14 @@ static void verifyDbFile(rtthreadFile *pFile){
     pFile->ctrlFlags |= UNIXFILE_WARNED;
     return;
   }
+#warning " struct \"stat\" has no field \"st_nlink\""
+#ifndef RT_USING_SQLITE
   if( buf.st_nlink==0 && (pFile->ctrlFlags & UNIXFILE_DELETE)==0 ){
     sqlite3_log(SQLITE_WARNING, "file unlinked while open: %s", pFile->zPath);
     pFile->ctrlFlags |= UNIXFILE_WARNED;
     return;
   }
+#endif
 }
 
 /*
@@ -23760,7 +23874,7 @@ static int dotlockLock(sqlite3_file *id, int eFileLock) {
   if( rc<0 ){
     /* failed to open/create the lock directory */
     int tErrno = errno;
-    if( EEXIST == tErrno ){
+    if( DFS_STATUS_EEXIST == tErrno ){
       rc = SQLITE_BUSY;
     } else {
       rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
@@ -23811,11 +23925,11 @@ static int dotlockUnlock(sqlite3_file *id, int eFileLock) {
   /* To fully unlock the database, delete the lock file */
   assert( eFileLock==NO_LOCK );
   rc = osRmdir(zLockFile);
-  if( rc<0 && errno==ENOTDIR ) rc = osUnlink(zLockFile);
+  if( rc<0 && errno==DFS_STATUS_ENOTDIR ) rc = osUnlink(zLockFile);
   if( rc<0 ){
     int tErrno = errno;
     rc = 0;
-    if( ENOENT != tErrno ){
+    if( DFS_STATUS_ENOENT != tErrno ){
       rc = SQLITE_IOERR_UNLOCK;
     }
     if( IS_LOCK_ERROR(rc) ){
@@ -24258,7 +24372,7 @@ static int rtthreadWrite(
   SimulateDiskfullError(( wrote=0, amt=1 ));
 
   if( amt>0 ){
-    if( wrote<0 && pFile->lastErrno!=ENOSPC ){
+    if( wrote<0 && pFile->lastErrno!=DFS_STATUS_ENOSPC ){
       /* lastErrno set by seekAndWrite */
       return SQLITE_IOERR_WRITE;
     }else{
@@ -25090,7 +25204,7 @@ static int rtthreadOpen(
 
     fd = robust_open(zName, openFlags, openMode);
     OSTRACE(("OPENX   %-3d %s 0%o\n", fd, zName, openFlags));
-    if( fd<0 && errno!=EISDIR && isReadWrite && !isExclusive ){
+    if( fd<0 && errno!=DFS_STATUS_EISDIR && isReadWrite && !isExclusive ){
       /* Failed to open the file for read/write access. Try read-only. */
       flags &= ~(SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE);
       openFlags &= ~(O_RDWR|O_CREAT);
@@ -25148,7 +25262,7 @@ static int rtthreadDelete(
   UNUSED_PARAMETER(NotUsed);
   SimulateIOError(return SQLITE_IOERR_DELETE);
   if( osUnlink(zPath)==(-1) ){
-    if( errno==ENOENT ){
+    if( errno==DFS_STATUS_ENOENT ){
       rc = SQLITE_IOERR_DELETE_NOENT;
     }else{
       rc = rtthreadLogError(SQLITE_IOERR_DELETE, "unlink", zPath);
@@ -25179,6 +25293,17 @@ static int rtthreadDelete(
 **
 ** Otherwise return 0.
 */
+
+#ifndef F_OK
+# define F_OK 0
+#endif
+#ifndef R_OK
+# define R_OK 4
+#endif
+#ifndef W_OK
+# define W_OK 2
+#endif
+
 static int rtthreadAccess(
   sqlite3_vfs *NotUsed,   /* The VFS containing this xAccess method */
   const char *zPath,      /* Path of the file to examine */
diff --git a/components/external/SQLite-3.8.1/make/Makefile b/components/external/SQLite-3.8.1/make/Makefile
index f8d829eee..ba1b0b9ea 100644
--- a/components/external/SQLite-3.8.1/make/Makefile
+++ b/components/external/SQLite-3.8.1/make/Makefile
@@ -346,6 +346,8 @@ SRC += \
   parse.h \
   config.h \
   sqlite3.h
+  
+SRC += $(TOP)/src/sqlite_config_rtthread.h
 
 # Source code to the test files.
 #
diff --git a/components/external/SQLite-3.8.1/src/os_rtthread.c b/components/external/SQLite-3.8.1/src/os_rtthread.c
index a1d6b7017..fb51b5368 100644
--- a/components/external/SQLite-3.8.1/src/os_rtthread.c
+++ b/components/external/SQLite-3.8.1/src/os_rtthread.c
@@ -16,12 +16,58 @@
 #if SQLITE_OS_RTTHREAD               /* This file is used for rt-thread only */
 
 #include <rtthread.h>
+#include <dfs_posix.h>
 
 /*
 ** Include code that is common to all os_*.c files
 */
 #include "os_common.h"
 
+#ifndef RT_USING_NEWLIB
+
+#ifndef EINTR
+#define EINTR        4  /* Interrupted system call */
+#endif
+
+#ifndef ENOLCK
+#define ENOLCK      46  /* No record locks available */
+#endif
+
+#ifndef EACCES
+#define EACCES      13  /* Permission denied */
+#endif
+
+#ifndef EPERM
+#define EPERM        1  /* Operation not permitted */
+#endif
+
+#ifndef ETIMEDOUT
+#define ETIMEDOUT   145 /* Connection timed out */
+#endif
+
+#ifndef ENOTCONN
+#define ENOTCONN    134 /* Transport endpoint is not connected */
+#endif
+
+#if defined(__GNUC__) || defined(__ADSPBLACKFIN__)
+int _gettimeofday(struct timeval *tp, void *ignore) __attribute__((weak));
+int _gettimeofday(struct timeval *tp, void *ignore)
+#elif defined(__CC_ARM)
+__weak int _gettimeofday(struct timeval *tp, void *ignore)
+#elif defined(__IAR_SYSTEMS_ICC__)
+    #if __VER__ > 540
+    __weak
+    #endif
+int _gettimeofday(struct timeval *tp, void *ignore)
+#else
+int _gettimeofday(struct timeval *tp, void *ignore)
+#endif
+{
+    return 0;
+}
+
+#endif /* RT_USING_NEWLIB */
+
 /*
 ** Compiling and using WAL mode requires several APIs that are not
 ** available in rt-thread.
@@ -269,10 +315,10 @@ static struct rtthread_syscall {
 #define osFstat     ((int(*)(int,struct stat*))aSyscall[5].pCurrent)
 
   { "read",         (sqlite3_syscall_ptr)read,       0  },
-#define osRead      ((ssize_t(*)(int,void*,size_t))aSyscall[6].pCurrent)
+#define osRead      ((int(*)(int,void*,size_t))aSyscall[6].pCurrent)
 
   { "write",        (sqlite3_syscall_ptr)write,      0  },
-#define osWrite     ((ssize_t(*)(int,const void*,size_t))aSyscall[7].pCurrent)
+#define osWrite     ((int(*)(int,const void*,size_t))aSyscall[7].pCurrent)
 
   { "unlink",       (sqlite3_syscall_ptr)unlink,           0 },
 #define osUnlink    ((int(*)(const char*))aSyscall[8].pCurrent)
@@ -624,9 +670,9 @@ static int sqliteErrorFromPosixError(int posixError, int sqliteIOErr) {
     return SQLITE_OK;
 #endif
 
-  case EAGAIN:
+  case DFS_STATUS_EAGAIN:
   case ETIMEDOUT:
-  case EBUSY:
+  case DFS_STATUS_EBUSY:
   case EINTR:
   case ENOLCK:
     /* random NFS retry error, unless during file system support
@@ -665,17 +711,17 @@ static int sqliteErrorFromPosixError(int posixError, int sqliteIOErr) {
     /* invalid fd, unless during file system support introspection, in which
      * it actually means what it says */
 #endif
-  case EIO:
-  case EBADF:
-  case EINVAL:
+  case DFS_STATUS_EIO:
+  case DFS_STATUS_EBADF:
+  case DFS_STATUS_EINVAL:
   case ENOTCONN:
-  case ENODEV:
-  case ENXIO:
-  case ENOENT:
+  case DFS_STATUS_ENODEV:
+  case DFS_STATUS_ENXIO:
+  case DFS_STATUS_ENOENT:
 #ifdef ESTALE                     /* ESTALE is not defined on Interix systems */
   case ESTALE:
 #endif
-  case ENOSYS:
+  case DFS_STATUS_ENOSYS:
     /* these should force the client to close the file and reconnect */
 
   default:
@@ -732,11 +778,14 @@ static void verifyDbFile(rtthreadFile *pFile){
     pFile->ctrlFlags |= UNIXFILE_WARNED;
     return;
   }
+#warning " struct \"stat\" has no field \"st_nlink\""
+#ifndef RT_USING_SQLITE
   if( buf.st_nlink==0 && (pFile->ctrlFlags & UNIXFILE_DELETE)==0 ){
     sqlite3_log(SQLITE_WARNING, "file unlinked while open: %s", pFile->zPath);
     pFile->ctrlFlags |= UNIXFILE_WARNED;
     return;
   }
+#endif
 }
 
 /*
@@ -919,7 +968,7 @@ static int dotlockLock(sqlite3_file *id, int eFileLock) {
   if( rc<0 ){
     /* failed to open/create the lock directory */
     int tErrno = errno;
-    if( EEXIST == tErrno ){
+    if( DFS_STATUS_EEXIST == tErrno ){
       rc = SQLITE_BUSY;
     } else {
       rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK);
@@ -970,11 +1019,11 @@ static int dotlockUnlock(sqlite3_file *id, int eFileLock) {
   /* To fully unlock the database, delete the lock file */
   assert( eFileLock==NO_LOCK );
   rc = osRmdir(zLockFile);
-  if( rc<0 && errno==ENOTDIR ) rc = osUnlink(zLockFile);
+  if( rc<0 && errno==DFS_STATUS_ENOTDIR ) rc = osUnlink(zLockFile);
   if( rc<0 ){
     int tErrno = errno;
     rc = 0;
-    if( ENOENT != tErrno ){
+    if( DFS_STATUS_ENOENT != tErrno ){
       rc = SQLITE_IOERR_UNLOCK;
     }
     if( IS_LOCK_ERROR(rc) ){
@@ -1417,7 +1466,7 @@ static int rtthreadWrite(
   SimulateDiskfullError(( wrote=0, amt=1 ));
 
   if( amt>0 ){
-    if( wrote<0 && pFile->lastErrno!=ENOSPC ){
+    if( wrote<0 && pFile->lastErrno!=DFS_STATUS_ENOSPC ){
       /* lastErrno set by seekAndWrite */
       return SQLITE_IOERR_WRITE;
     }else{
@@ -2249,7 +2298,7 @@ static int rtthreadOpen(
 
     fd = robust_open(zName, openFlags, openMode);
     OSTRACE(("OPENX   %-3d %s 0%o\n", fd, zName, openFlags));
-    if( fd<0 && errno!=EISDIR && isReadWrite && !isExclusive ){
+    if( fd<0 && errno!=DFS_STATUS_EISDIR && isReadWrite && !isExclusive ){
       /* Failed to open the file for read/write access. Try read-only. */
       flags &= ~(SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE);
       openFlags &= ~(O_RDWR|O_CREAT);
@@ -2307,7 +2356,7 @@ static int rtthreadDelete(
   UNUSED_PARAMETER(NotUsed);
   SimulateIOError(return SQLITE_IOERR_DELETE);
   if( osUnlink(zPath)==(-1) ){
-    if( errno==ENOENT ){
+    if( errno==DFS_STATUS_ENOENT ){
       rc = SQLITE_IOERR_DELETE_NOENT;
     }else{
       rc = rtthreadLogError(SQLITE_IOERR_DELETE, "unlink", zPath);
@@ -2338,6 +2387,17 @@ static int rtthreadDelete(
 **
 ** Otherwise return 0.
 */
+
+#ifndef F_OK
+# define F_OK 0
+#endif
+#ifndef R_OK
+# define R_OK 4
+#endif
+#ifndef W_OK
+# define W_OK 2
+#endif
+
 static int rtthreadAccess(
   sqlite3_vfs *NotUsed,   /* The VFS containing this xAccess method */
   const char *zPath,      /* Path of the file to examine */
diff --git a/components/external/SQLite-3.8.1/src/sqlite_config_rtthread.h b/components/external/SQLite-3.8.1/src/sqlite_config_rtthread.h
new file mode 100644
index 000000000..5b4fb1858
--- /dev/null
+++ b/components/external/SQLite-3.8.1/src/sqlite_config_rtthread.h
@@ -0,0 +1,62 @@
+#ifndef _SQLITE_CONFIG_RTTHREAD_H_
+#define _SQLITE_CONFIG_RTTHREAD_H_
+/*
+* SQLite compile macro
+*/
+#ifndef SQLITE_MINIMUM_FILE_DESCRIPTOR
+#define SQLITE_MINIMUM_FILE_DESCRIPTOR  0
+#endif
+
+#ifndef SQLITE_OMIT_LOAD_EXTENSION
+#define SQLITE_OMIT_LOAD_EXTENSION 1
+#endif
+
+//#ifndef #define SQLITE_OMIT_WAL
+#define SQLITE_OMIT_WAL
+//#endif
+
+#ifndef SQLITE_RTTHREAD_NO_WIDE
+#define SQLITE_RTTHREAD_NO_WIDE 1
+#endif
+
+#ifndef SQLITE_ENABLE_LOCKING_STYLE
+#define SQLITE_ENABLE_LOCKING_STYLE 0
+#endif
+
+#ifndef SQLITE_DISABLE_LOCKING_STYLE
+#define SQLITE_DISABLE_LOCKING_STYLE 1
+#endif
+
+#ifndef SQLITE_TEMP_STORE
+#define SQLITE_TEMP_STORE 1
+#endif
+
+#ifndef SQLITE_THREADSAFE
+#define SQLITE_THREADSAFE 1
+#endif
+
+#ifndef HAVE_READLINE
+#define HAVE_READLINE 0
+#endif
+
+#ifndef NDEBUG
+#define NDEBUG
+#endif
+
+#ifndef _HAVE_SQLITE_CONFIG_H
+#define _HAVE_SQLITE_CONFIG_H
+#endif
+
+#ifndef BUILD_sqlite
+#define BUILD_sqlite
+#endif
+
+#ifndef SQLITE_OS_OTHER
+#define SQLITE_OS_OTHER 1
+#endif
+
+#ifndef SQLITE_OS_RTTHREAD
+#define SQLITE_OS_RTTHREAD 1
+#endif
+
+#endif
diff --git a/components/external/SQLite-3.8.1/tool/mksqlite3c.tcl b/components/external/SQLite-3.8.1/tool/mksqlite3c.tcl
index 4b01a34f7..89d73a664 100644
--- a/components/external/SQLite-3.8.1/tool/mksqlite3c.tcl
+++ b/components/external/SQLite-3.8.1/tool/mksqlite3c.tcl
@@ -228,6 +228,7 @@ proc copy_file {filename} {
 # inlining opportunities.
 #
 foreach file {
+   sqlite_config_rtthread.h 
    sqlite3.h
    sqliteInt.h