diff --git a/bsp/simulator/application.c b/bsp/simulator/application.c
index 2125b3a37..860f7933a 100644
--- a/bsp/simulator/application.c
+++ b/bsp/simulator/application.c
@@ -107,12 +107,4 @@ int rt_application_init()
 
     return 0;
 }
-
-extern int rt_application_init(void);
-#if 1
-FINSH_FUNCTION_EXPORT(rt_application_init,  app init)
-void testfun()
-{}
-FINSH_FUNCTION_EXPORT(testfun,  test fun)
-#endif
 /*@}*/
diff --git a/bsp/simulator/serial.c b/bsp/simulator/serial.c
index b5e9cb01a..0777bff92 100644
--- a/bsp/simulator/serial.c
+++ b/bsp/simulator/serial.c
@@ -7,7 +7,6 @@
 */
 
 #include "rtthread.h"
-//#ifdef RT_USING_SERIAL
 
 #define _DEBUG_SERIAL 0
 #include "serial.h"
@@ -57,7 +56,6 @@ static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt
 	rt_uint8_t* ptr;
 	rt_err_t err_code;
 
-#if 1
 	ptr = buffer;
 	err_code = RT_EOK;
 
@@ -101,9 +99,8 @@ static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt
 	/* set error code */
 	rt_set_errno(err_code);
 	return (rt_uint32_t)ptr - (rt_uint32_t)buffer;
-#endif
-
 }
+
 static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
 {
 #if _DEBUG_SERIAL==1
@@ -161,4 +158,4 @@ rt_err_t rt_hw_serial_init(void)
   	return rt_hw_serial_register(&serial_device,"sci0",
   		RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_STREAM);
 }
-//#endif
+
diff --git a/bsp/simulator/sst25vfxx_mtd_sim.c b/bsp/simulator/sst25vfxx_mtd_sim.c
index d799a9804..d2c411730 100644
--- a/bsp/simulator/sst25vfxx_mtd_sim.c
+++ b/bsp/simulator/sst25vfxx_mtd_sim.c
@@ -1,7 +1,7 @@
 /*
  * File      : rtdef.h
  * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006 - 2011, RT-Thread Development Team
+ * COPYRIGHT (C) 2006 - 2012, RT-Thread Development Team
  *
  * The license and distribution terms for this file may be
  * found in the file LICENSE in this distribution or at
@@ -9,8 +9,7 @@
  *
  * Change Logs:
  * Date           Author       Notes
- * 2011-12-16     aozima       the first version
- * 2012-02-01     mbbill       MTD device version
+ * 2012-10-21     prife        the first version
  */
 
 #include <rtdevice.h>
diff --git a/bsp/simulator/testfs.c b/bsp/simulator/testfs.c
deleted file mode 100644
index 109a94883..000000000
--- a/bsp/simulator/testfs.c
+++ /dev/null
@@ -1,107 +0,0 @@
-/*
- * File      : application.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Development Team
- *
- * The license and distribution terms for this file may be
- * found in the file LICENSE in this distribution or at
- * http://www.rt-thread.org/license/LICENSE
- *
- * Change Logs:
- * Date           Author       Notes
- * 2009-01-05     Bernard      the first version
- */
-
-#include <rtthread.h>
-#include <stdio.h>
-#include <board.h>
-
-#ifdef RT_USING_DFS
-/* dfs init */
-#include <dfs_init.h>
-/* dfs filesystem:ELM filesystem init */
-#include <dfs_elm.h>
-/* dfs Filesystem APIs */
-#include <dfs_fs.h>
-#endif
-
-#include <dfs_posix.h>
-
-int testfat(void) 
-{
-    int Fd,i;
-	int res;
-
-    Fd = open("/nor/test.txt", O_WRONLY | O_CREAT | O_TRUNC, 0);    //打开文件 
-    if (Fd>=0)
-    {
-        rt_kprintf("begin\n");
-        for (i = 0; i < 94520 ; i++)
-        //for (i = 0; i < 512 ; i++)
-        {
-           res = write(Fd, &i, 1);
-		   if (res < 0)
-		   {
-				rt_kprintf("write %d bytes, then meet a error, break\n", i);
-				break;
-		   }
-        }
-        close(Fd);
-        rt_kprintf("over\n");
-    }
-    else
-    {
-        rt_kprintf("failed\n");
-    }
-    return 0;
-}
-
-static char buf[94520];
-int testfat2(void) 
-{
-    int Fd,i;
-
-    Fd = open("/nor/test2.txt", O_WRONLY | O_CREAT | O_TRUNC, 0);    //打开文件 
-    if (Fd>=0)
-    {
-        rt_kprintf("begin\n");
-        for (i = 0; i < 94520 ; i++)
-        {
-            write(Fd, buf, 1);
-        }
-        close(Fd);
-        rt_kprintf("over\n");
-    }
-    else
-    {
-        rt_kprintf("failed\n");
-    }
-    return 0;
-}
-
-
-int testfat3(void) 
-{
-    int Fd,i;
-
-    Fd = open("/nor/test3.txt", O_WRONLY | O_CREAT | O_TRUNC, 0);    //打开文件 
-    if (Fd>=0)
-    {
-        rt_kprintf("begin\n");
-        {
-            write(Fd, buf, 94520);
-        }
-        close(Fd);
-        rt_kprintf("over\n");
-    }
-    else
-    {
-        rt_kprintf("failed\n");
-    }
-    return 0;
-}
-
-#include <finsh.h>
-FINSH_FUNCTION_EXPORT(testfat, test fs);
-FINSH_FUNCTION_EXPORT(testfat2, test fs);
-FINSH_FUNCTION_EXPORT(testfat3, test fs);
\ No newline at end of file
diff --git a/bsp/simulator/vs2005.vcproj b/bsp/simulator/vs2005.vcproj
index 7ae6740d4..7bd64324a 100644
--- a/bsp/simulator/vs2005.vcproj
+++ b/bsp/simulator/vs2005.vcproj
@@ -279,10 +279,6 @@
 					RelativePath=".\startup.c"
 					>
 				</File>
-				<File
-					RelativePath=".\testfs.c"
-					>
-				</File>
 				<File
 					RelativePath=".\usart_sim.c"
 					>