diff --git a/bsp/lpc2148/application.c b/bsp/lpc2148/application.c
index 6c1f0113cc..9eaeb365c4 100644
--- a/bsp/lpc2148/application.c
+++ b/bsp/lpc2148/application.c
@@ -1,23 +1,23 @@
-/*
- * File      : app.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
- * 2006-06-05     Bernard      the first version
+/*
+ * File      : app.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
+ * 2006-06-05     Bernard      the first version
  */
-
+
 #include <rtthread.h>
 #include <finsh.h>
-
-/**
- * @addtogroup LPC2148
- */
+
+/**
+ * @addtogroup LPC2148
+ */
 /*@{*/
 
 #ifdef RT_USING_DFS
@@ -42,99 +42,100 @@
 /* thread phase init */
 void rt_init_thread_entry(void *parameter)
 {
-/* Filesystem Initialization */
+    /* Filesystem Initialization */
 #ifdef RT_USING_DFS
-	{
-		/* init the device filesystem */
-		dfs_init();
-		/* init the efsl filesystam*/
-		efsl_init();
+    {
+        /* init the device filesystem */
+        dfs_init();
+        /* init the efsl filesystam*/
+        efsl_init();
 
-		/* mount sd card fat partition 1 as root directory */
-		if (dfs_mount("sd0", "/", "efs", 0, 0) == 0)
-			rt_kprintf("File System initialized!\n");
-		else
-			rt_kprintf("File System init failed!\n");
-	}
+        /* mount sd card fat partition 1 as root directory */
+        if (dfs_mount("sd0", "/", "efs", 0, 0) == 0)
+            rt_kprintf("File System initialized!\n");
+        else
+            rt_kprintf("File System init failed!\n");
+    }
 #endif
 
-/* LwIP Initialization */
+    /* LwIP Initialization */
 #ifdef RT_USING_LWIP
-	{
-		extern void lwip_sys_init(void);
-	
-		/* init lwip system */
-		lwip_sys_init();
-		rt_kprintf("TCP/IP initialized!\n");
-	}
+    {
+        extern void lwip_sys_init(void);
+
+        /* init lwip system */
+        lwip_sys_init();
+        rt_kprintf("TCP/IP initialized!\n");
+    }
 #endif
 }
-
+
 /************** LED BLINK *******************/
 #include "lpc214x.h"
-#define LED1 ( 1<<16) //P1
-#define LED2 ( 1<<17) //P1
-#define LED3 ( 1<<18) //P1
-#define LED4 ( 1<<19) //P1
-char thread3_stack[512];
-struct rt_thread thread3;
-void thread3_entry(void* parameter)
+#define LED1     (1<<16) //P1
+#define LED2     (1<<17) //P1
+#define LED3     (1<<18) //P1
+#define LED4     (1<<19) //P1
+char thread_led1_stack[512];
+struct rt_thread thread_led1;
+void thread_led1_entry(void* parameter)
 {
- volatile unsigned int i;
- IO1DIR |= LED1;
- while(1)
- {
- IO1CLR = LED1;
- rt_thread_delay(20);
- IO1SET = LED1;
- rt_thread_delay(20);
- }
+    volatile unsigned int i;
+    IO1DIR |= LED1;
+    while(1)
+    {
+        IO1CLR = LED1;
+        rt_thread_delay( RT_TICK_PER_SECOND/3 ); /* delay 0.3s */
+        IO1SET = LED1;
+        rt_thread_delay( RT_TICK_PER_SECOND/3 );
+    }
 }
 
-char thread4_stack[512];
-struct rt_thread thread4;
-void thread4_entry(void* parameter)
+char thread_led2_stack[512];
+struct rt_thread thread_led2;
+void thread_led2_entry(void* parameter)
 {
- volatile unsigned int i;
- IO1DIR |= LED2;
- while(1)
- {
- IO1CLR = LED2;
- rt_thread_delay(30);
- IO1SET = LED2;
- rt_thread_delay(30);
- }
+    volatile unsigned int i;
+    IO1DIR |= LED2;
+    while(1)
+    {
+        IO1CLR = LED2;
+        rt_thread_delay( RT_TICK_PER_SECOND/2 ); /* delay 0.5s */
+        IO1SET = LED2;
+        rt_thread_delay( RT_TICK_PER_SECOND/2 );
+    }
 }
 /************** LED BLINK *******************/
-
-int rt_application_init()
-{
-	rt_thread_init(&thread3,
-		"led1",
-		thread3_entry, RT_NULL,
-		&thread3_stack[0], sizeof(thread3_stack),
-		20, 10);
-
-	rt_thread_init(&thread4,
-		"led2",
-		thread4_entry, RT_NULL,
-		&thread4_stack[0], sizeof(thread4_stack),
-		25, 8);
-	rt_thread_startup(&thread3);
-	rt_thread_startup(&thread4);
 
-	{
-		rt_thread_t init_thread;
-	
-		init_thread = rt_thread_create("init",
-									rt_init_thread_entry, RT_NULL,
-									1024, 8, 5);
-		rt_thread_startup(init_thread);
-	}
-	
-	rt_kprintf("enter list() to get function list!\n");
-
-	return 0;
+int rt_application_init()
+{
+    rt_thread_init(&thread_led1,
+                   "led1",
+                   thread_led1_entry, RT_NULL,
+                   &thread_led1_stack[0], sizeof(thread_led1_stack),
+                   20, 10);
+
+    rt_thread_init(&thread_led2,
+                   "led2",
+                   thread_led2_entry, RT_NULL,
+                   &thread_led2_stack[0], sizeof(thread_led2_stack),
+                   25, 8);
+    rt_thread_startup(&thread_led1);
+    rt_thread_startup(&thread_led2);
+
+    /* inint SD-crad and dm9000 */
+    {
+        rt_thread_t init_thread;
+
+        init_thread = rt_thread_create("init",
+                                       rt_init_thread_entry, RT_NULL,
+                                       1024, 8, 5);
+        rt_thread_startup(init_thread);
+    }
+
+    rt_kprintf("\r\nenter list() to get function list!\r\n");
+
+    return 0;
 }
-
-/*@}*/
+
+/*@}*/
diff --git a/bsp/lpc2148/project.Opt b/bsp/lpc2148/project.Opt
index 55b3f79ea0..d8e0936042 100644
--- a/bsp/lpc2148/project.Opt
+++ b/bsp/lpc2148/project.Opt
@@ -10,106 +10,52 @@
  CppX (*.cpp)
  DaveTm { 0,0,0,0,0,0,0,0 }
 
-Target (RT-Thread/LPC2148), 0x0004 // Tools: 'ARM-ADS'
+Target (RT-Thread-LPC2148), 0x0004 // Tools: 'ARM-ADS'
 GRPOPT 1,(Startup),1,0,0
 GRPOPT 2,(Kernel),0,0,0
 GRPOPT 3,(LPC214x),0,0,0
 GRPOPT 4,(finsh),0,0,0
-GRPOPT 5,(Filesystem),0,0,0
-GRPOPT 6,(LwIP),0,0,0
 
-OPTFFF 1,1,1,150994944,0,0,0,0,<.\application.c><application.c> 
+OPTFFF 1,1,1,637534208,0,119,136,0,<.\application.c><application.c> { 44,0,0,0,0,0,0,0,1,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,110,0,0,0,145,0,0,0,100,4,0,0,240,1,0,0 }
 OPTFFF 1,2,1,0,0,0,0,0,<.\board.c><board.c> 
-OPTFFF 1,3,1,0,0,0,0,0,<.\startup.c><startup.c> 
-OPTFFF 1,4,1,0,0,0,0,0,<.\dm9000.c><dm9000.c> 
-OPTFFF 1,5,1,0,0,0,0,0,<.\sd.c><sd.c> 
-OPTFFF 1,6,5,0,0,0,0,0,<.\rtconfig.h><rtconfig.h> 
-OPTFFF 2,7,1,0,0,0,0,0,<..\..\src\clock.c><clock.c> 
-OPTFFF 2,8,1,150994944,0,0,0,0,<..\..\src\device.c><device.c> 
-OPTFFF 2,9,1,0,0,0,0,0,<..\..\src\ipc.c><ipc.c> 
-OPTFFF 2,10,1,0,0,0,0,0,<..\..\src\mempool.c><mempool.c> 
-OPTFFF 2,11,1,0,0,0,0,0,<..\..\src\object.c><object.c> 
-OPTFFF 2,12,1,0,0,0,0,0,<..\..\src\timer.c><timer.c> 
-OPTFFF 2,13,1,0,0,0,0,0,<..\..\src\idle.c><idle.c> 
-OPTFFF 2,14,1,0,0,0,0,0,<..\..\src\irq.c><irq.c> 
-OPTFFF 2,15,1,0,0,0,0,0,<..\..\src\mem.c><mem.c> 
-OPTFFF 2,16,1,0,0,0,0,0,<..\..\src\scheduler.c><scheduler.c> 
-OPTFFF 2,17,1,0,0,0,0,0,<..\..\src\slab.c><slab.c> 
-OPTFFF 2,18,1,0,0,0,0,0,<..\..\src\thread.c><thread.c> 
-OPTFFF 2,19,1,0,0,0,0,0,<..\..\src\kservice.c><kservice.c> 
-OPTFFF 3,20,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\serial.c><serial.c> 
-OPTFFF 3,21,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\interrupt.c><interrupt.c> 
-OPTFFF 3,22,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\cpu.c><cpu.c> 
-OPTFFF 3,23,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\trap.c><trap.c> 
-OPTFFF 3,24,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\stack.c><stack.c> 
-OPTFFF 3,25,2,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\start_rvds.s><start_rvds.s> 
-OPTFFF 3,26,2,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\context_rvds.s><context_rvds.s> 
-OPTFFF 4,27,1,0,0,0,0,0,<..\..\finsh\finsh_compiler.c><finsh_compiler.c> 
-OPTFFF 4,28,1,0,0,0,0,0,<..\..\finsh\finsh_error.c><finsh_error.c> 
-OPTFFF 4,29,1,0,0,0,0,0,<..\..\finsh\finsh_heap.c><finsh_heap.c> 
-OPTFFF 4,30,1,0,0,0,0,0,<..\..\finsh\finsh_init.c><finsh_init.c> 
-OPTFFF 4,31,1,0,0,0,0,0,<..\..\finsh\finsh_node.c><finsh_node.c> 
-OPTFFF 4,32,1,0,0,0,0,0,<..\..\finsh\finsh_ops.c><finsh_ops.c> 
-OPTFFF 4,33,1,0,0,0,0,0,<..\..\finsh\finsh_token.c><finsh_token.c> 
-OPTFFF 4,34,1,0,0,0,0,0,<..\..\finsh\finsh_var.c><finsh_var.c> 
-OPTFFF 4,35,1,0,0,0,0,0,<..\..\finsh\finsh_vm.c><finsh_vm.c> 
-OPTFFF 4,36,1,0,0,0,0,0,<..\..\finsh\shell.c><shell.c> 
-OPTFFF 4,37,1,0,0,0,0,0,<..\..\finsh\symbol.c><symbol.c> 
-OPTFFF 4,38,1,0,0,0,0,0,<..\..\finsh\cmd.c><cmd.c> 
-OPTFFF 4,39,1,0,0,0,0,0,<..\..\finsh\finsh_parser.c><finsh_parser.c> 
-OPTFFF 5,40,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_util.c><dfs_util.c> 
-OPTFFF 5,41,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_cache.c><dfs_cache.c> 
-OPTFFF 5,42,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_fs.c><dfs_fs.c> 
-OPTFFF 5,43,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_init.c><dfs_init.c> 
-OPTFFF 5,44,1,301989888,0,0,0,0,<..\..\filesystem\dfs\src\dfs_posix.c><dfs_posix.c> 
-OPTFFF 5,45,1,0,0,0,0,0,<..\..\filesystem\dfs\src\dfs_raw.c><dfs_raw.c> 
-OPTFFF 5,46,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\base\plibc.c><plibc.c> 
-OPTFFF 5,47,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\base\efs.c><efs.c> 
-OPTFFF 5,48,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\base\extract.c><extract.c> 
-OPTFFF 5,49,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\base\partition.c><partition.c> 
-OPTFFF 5,50,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\dir.c><dir.c> 
-OPTFFF 5,51,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\fat.c><fat.c> 
-OPTFFF 5,52,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\file.c><file.c> 
-OPTFFF 5,53,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\fs.c><fs.c> 
-OPTFFF 5,54,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\ls.c><ls.c> 
-OPTFFF 5,55,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\ui.c><ui.c> 
-OPTFFF 5,56,1,0,0,0,0,0,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\time.c><time.c> 
-OPTFFF 6,57,1,0,0,0,0,0,<..\..\net\lwip\src\netif\etharp.c><etharp.c> 
-OPTFFF 6,58,1,150994944,0,0,0,0,<..\..\net\lwip\src\netif\ethernetif.c><ethernetif.c> 
-OPTFFF 6,59,1,0,0,0,0,0,<..\..\net\lwip\src\core\udp.c><udp.c> 
-OPTFFF 6,60,1,0,0,0,0,0,<..\..\net\lwip\src\core\dhcp.c><dhcp.c> 
-OPTFFF 6,61,1,0,0,0,0,0,<..\..\net\lwip\src\core\dns.c><dns.c> 
-OPTFFF 6,62,1,0,0,0,0,0,<..\..\net\lwip\src\core\init.c><init.c> 
-OPTFFF 6,63,1,0,0,0,0,0,<..\..\net\lwip\src\core\memp_tiny.c><memp_tiny.c> 
-OPTFFF 6,64,1,0,0,0,0,0,<..\..\net\lwip\src\core\netif.c><netif.c> 
-OPTFFF 6,65,1,0,0,0,0,0,<..\..\net\lwip\src\core\pbuf.c><pbuf.c> 
-OPTFFF 6,66,1,0,0,0,0,0,<..\..\net\lwip\src\core\raw.c><raw.c> 
-OPTFFF 6,67,1,0,0,0,0,0,<..\..\net\lwip\src\core\stats.c><stats.c> 
-OPTFFF 6,68,1,0,0,0,0,0,<..\..\net\lwip\src\core\sys.c><sys.c> 
-OPTFFF 6,69,1,0,0,0,0,0,<..\..\net\lwip\src\core\tcp.c><tcp.c> 
-OPTFFF 6,70,1,0,0,0,0,0,<..\..\net\lwip\src\core\tcp_in.c><tcp_in.c> 
-OPTFFF 6,71,1,0,0,0,0,0,<..\..\net\lwip\src\core\tcp_out.c><tcp_out.c> 
-OPTFFF 6,72,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\ip_frag.c><ip_frag.c> 
-OPTFFF 6,73,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\autoip.c><autoip.c> 
-OPTFFF 6,74,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\icmp.c><icmp.c> 
-OPTFFF 6,75,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\igmp.c><igmp.c> 
-OPTFFF 6,76,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\inet.c><inet.c> 
-OPTFFF 6,77,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\inet_chksum.c><inet_chksum.c> 
-OPTFFF 6,78,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\ip.c><ip.c> 
-OPTFFF 6,79,1,0,0,0,0,0,<..\..\net\lwip\src\core\ipv4\ip_addr.c><ip_addr.c> 
-OPTFFF 6,80,1,0,0,0,0,0,<..\..\net\lwip\src\api\tcpip.c><tcpip.c> 
-OPTFFF 6,81,1,0,0,0,0,0,<..\..\net\lwip\src\api\api_lib.c><api_lib.c> 
-OPTFFF 6,82,1,0,0,0,0,0,<..\..\net\lwip\src\api\api_msg.c><api_msg.c> 
-OPTFFF 6,83,1,0,0,0,0,0,<..\..\net\lwip\src\api\err.c><err.c> 
-OPTFFF 6,84,1,0,0,0,0,0,<..\..\net\lwip\src\api\netbuf.c><netbuf.c> 
-OPTFFF 6,85,1,0,0,0,0,0,<..\..\net\lwip\src\api\netdb.c><netdb.c> 
-OPTFFF 6,86,1,0,0,0,0,0,<..\..\net\lwip\src\api\netifapi.c><netifapi.c> 
-OPTFFF 6,87,1,0,0,0,0,0,<..\..\net\lwip\src\api\sockets.c><sockets.c> 
-OPTFFF 6,88,1,0,0,0,0,0,<..\..\net\lwip\src\arch\sys_arch_init.c><sys_arch_init.c> 
-OPTFFF 6,89,1,0,0,0,0,0,<..\..\net\lwip\src\arch\sys_arch.c><sys_arch.c> 
+OPTFFF 1,3,1,33554434,0,2,18,0,<.\startup.c><startup.c> { 44,0,0,0,2,0,0,0,3,0,0,0,255,255,255,255,255,255,255,255,252,255,255,255,226,255,255,255,44,0,0,0,58,0,0,0,46,4,0,0,112,1,0,0 }
+OPTFFF 1,4,5,0,0,0,0,0,<.\rtconfig.h><rtconfig.h> 
+OPTFFF 2,5,1,0,0,0,0,0,<..\..\src\clock.c><clock.c> 
+OPTFFF 2,6,1,150994944,0,0,0,0,<..\..\src\device.c><device.c> 
+OPTFFF 2,7,1,0,0,0,0,0,<..\..\src\ipc.c><ipc.c> 
+OPTFFF 2,8,1,0,0,0,0,0,<..\..\src\mempool.c><mempool.c> 
+OPTFFF 2,9,1,0,0,0,0,0,<..\..\src\object.c><object.c> 
+OPTFFF 2,10,1,0,0,0,0,0,<..\..\src\timer.c><timer.c> 
+OPTFFF 2,11,1,553648128,0,0,0,0,<..\..\src\idle.c><idle.c> 
+OPTFFF 2,12,1,0,0,0,0,0,<..\..\src\irq.c><irq.c> 
+OPTFFF 2,13,1,0,0,0,0,0,<..\..\src\mem.c><mem.c> 
+OPTFFF 2,14,1,0,0,0,0,0,<..\..\src\scheduler.c><scheduler.c> 
+OPTFFF 2,15,1,0,0,0,0,0,<..\..\src\slab.c><slab.c> 
+OPTFFF 2,16,1,0,0,0,0,0,<..\..\src\thread.c><thread.c> 
+OPTFFF 2,17,1,0,0,0,0,0,<..\..\src\kservice.c><kservice.c> 
+OPTFFF 3,18,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\serial.c><serial.c> 
+OPTFFF 3,19,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\interrupt.c><interrupt.c> 
+OPTFFF 3,20,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\cpu.c><cpu.c> 
+OPTFFF 3,21,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\trap.c><trap.c> 
+OPTFFF 3,22,1,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\stack.c><stack.c> 
+OPTFFF 3,23,2,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\start_rvds.s><start_rvds.s> 
+OPTFFF 3,24,2,0,0,0,0,0,<..\..\libcpu\arm\lpc214x\context_rvds.s><context_rvds.s> 
+OPTFFF 4,25,1,0,0,0,0,0,<..\..\finsh\finsh_compiler.c><finsh_compiler.c> 
+OPTFFF 4,26,1,0,0,0,0,0,<..\..\finsh\finsh_error.c><finsh_error.c> 
+OPTFFF 4,27,1,0,0,0,0,0,<..\..\finsh\finsh_heap.c><finsh_heap.c> 
+OPTFFF 4,28,1,0,0,0,0,0,<..\..\finsh\finsh_init.c><finsh_init.c> 
+OPTFFF 4,29,1,0,0,0,0,0,<..\..\finsh\finsh_node.c><finsh_node.c> 
+OPTFFF 4,30,1,0,0,0,0,0,<..\..\finsh\finsh_ops.c><finsh_ops.c> 
+OPTFFF 4,31,1,0,0,0,0,0,<..\..\finsh\finsh_token.c><finsh_token.c> 
+OPTFFF 4,32,1,0,0,0,0,0,<..\..\finsh\finsh_var.c><finsh_var.c> 
+OPTFFF 4,33,1,0,0,0,0,0,<..\..\finsh\finsh_vm.c><finsh_vm.c> 
+OPTFFF 4,34,1,0,0,0,0,0,<..\..\finsh\shell.c><shell.c> 
+OPTFFF 4,35,1,0,0,0,0,0,<..\..\finsh\symbol.c><symbol.c> 
+OPTFFF 4,36,1,0,0,0,0,0,<..\..\finsh\cmd.c><cmd.c> 
+OPTFFF 4,37,1,0,0,0,0,0,<..\..\finsh\finsh_parser.c><finsh_parser.c> 
 
 
-TARGOPT 1, (RT-Thread/LPC2148)
+TARGOPT 1, (RT-Thread-LPC2148)
  ADSCLK=12000000
   OPTTT 1,1,1,0
   OPTHX 1,65535,0,0,0
@@ -123,7 +69,7 @@ TARGOPT 1, (RT-Thread/LPC2148)
   OPTDBG 48125,6,()()()()()()()()()() (Segger\JLTAgdi.dll)()()()
   OPTKEY 0,(DLGDARM)((134=-1,-1,-1,-1,0)(135=-1,-1,-1,-1,0)(153=-1,-1,-1,-1,0)(154=-1,-1,-1,-1,0)(108=-1,-1,-1,-1,0)(106=-1,-1,-1,-1,0)(105=-1,-1,-1,-1,0)(145=-1,-1,-1,-1,0)(147=-1,-1,-1,-1,0)(80=-1,-1,-1,-1,0)(104=-1,-1,-1,-1,0)(100=-1,-1,-1,-1,0)(101=-1,-1,-1,-1,0)(160=-1,-1,-1,-1,0)(161=-1,-1,-1,-1,0)(113=556,103,931,655,0)(112=-1,-1,-1,-1,0)(137=-1,-1,-1,-1,0)(138=-1,-1,-1,-1,0)(117=-1,-1,-1,-1,0)(146=-1,-1,-1,-1,0)(110=-1,-1,-1,-1,0)(111=-1,-1,-1,-1,0)(114=-1,-1,-1,-1,0)(141=-1,-1,-1,-1,0)(142=-1,-1,-1,-1,0)(143=-1,-1,-1,-1,0)(144=-1,-1,-1,-1,0)(115=-1,-1,-1,-1,0)(116=-1,-1,-1,-1,0))
   OPTKEY 0,(ARMDBGFLAGS)(-T5F)
-  OPTDF 0xB0
+  OPTDF 0x90
   OPTLE <>
   OPTLC <>
 EndOpt
diff --git a/bsp/lpc2148/project.Uv2 b/bsp/lpc2148/project.Uv2
index f1f82c90c8..18a86744a4 100644
--- a/bsp/lpc2148/project.Uv2
+++ b/bsp/lpc2148/project.Uv2
@@ -1,20 +1,16 @@
 ### uVision2 Project, (C) Keil Software
 ### Do not modify !
 
-Target (RT-Thread/LPC2148), 0x0004 // Tools: 'ARM-ADS'
+Target (RT-Thread-LPC2148), 0x0004 // Tools: 'ARM-ADS'
 
 Group (Startup)
 Group (Kernel)
 Group (LPC214x)
 Group (finsh)
-Group (Filesystem)
-Group (LwIP)
 
 File 1,1,<.\application.c><application.c>
 File 1,1,<.\board.c><board.c>
 File 1,1,<.\startup.c><startup.c>
-File 1,1,<.\dm9000.c><dm9000.c>
-File 1,1,<.\sd.c><sd.c>
 File 1,5,<.\rtconfig.h><rtconfig.h>
 File 2,1,<..\..\src\clock.c><clock.c>
 File 2,1,<..\..\src\device.c><device.c>
@@ -49,59 +45,9 @@ File 4,1,<..\..\finsh\shell.c><shell.c>
 File 4,1,<..\..\finsh\symbol.c><symbol.c>
 File 4,1,<..\..\finsh\cmd.c><cmd.c>
 File 4,1,<..\..\finsh\finsh_parser.c><finsh_parser.c>
-File 5,1,<..\..\filesystem\dfs\src\dfs_util.c><dfs_util.c>
-File 5,1,<..\..\filesystem\dfs\src\dfs_cache.c><dfs_cache.c>
-File 5,1,<..\..\filesystem\dfs\src\dfs_fs.c><dfs_fs.c>
-File 5,1,<..\..\filesystem\dfs\src\dfs_init.c><dfs_init.c>
-File 5,1,<..\..\filesystem\dfs\src\dfs_posix.c><dfs_posix.c>
-File 5,1,<..\..\filesystem\dfs\src\dfs_raw.c><dfs_raw.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\base\plibc.c><plibc.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\base\efs.c><efs.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\base\extract.c><extract.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\base\partition.c><partition.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\dir.c><dir.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\fat.c><fat.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\file.c><file.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\fs.c><fs.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\ls.c><ls.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\ui.c><ui.c>
-File 5,1,<..\..\filesystem\dfs\filesystems\efsl\src\fs\vfat\time.c><time.c>
-File 6,1,<..\..\net\lwip\src\netif\etharp.c><etharp.c>
-File 6,1,<..\..\net\lwip\src\netif\ethernetif.c><ethernetif.c>
-File 6,1,<..\..\net\lwip\src\core\udp.c><udp.c>
-File 6,1,<..\..\net\lwip\src\core\dhcp.c><dhcp.c>
-File 6,1,<..\..\net\lwip\src\core\dns.c><dns.c>
-File 6,1,<..\..\net\lwip\src\core\init.c><init.c>
-File 6,1,<..\..\net\lwip\src\core\memp_tiny.c><memp_tiny.c>
-File 6,1,<..\..\net\lwip\src\core\netif.c><netif.c>
-File 6,1,<..\..\net\lwip\src\core\pbuf.c><pbuf.c>
-File 6,1,<..\..\net\lwip\src\core\raw.c><raw.c>
-File 6,1,<..\..\net\lwip\src\core\stats.c><stats.c>
-File 6,1,<..\..\net\lwip\src\core\sys.c><sys.c>
-File 6,1,<..\..\net\lwip\src\core\tcp.c><tcp.c>
-File 6,1,<..\..\net\lwip\src\core\tcp_in.c><tcp_in.c>
-File 6,1,<..\..\net\lwip\src\core\tcp_out.c><tcp_out.c>
-File 6,1,<..\..\net\lwip\src\core\ipv4\ip_frag.c><ip_frag.c>
-File 6,1,<..\..\net\lwip\src\core\ipv4\autoip.c><autoip.c>
-File 6,1,<..\..\net\lwip\src\core\ipv4\icmp.c><icmp.c>
-File 6,1,<..\..\net\lwip\src\core\ipv4\igmp.c><igmp.c>
-File 6,1,<..\..\net\lwip\src\core\ipv4\inet.c><inet.c>
-File 6,1,<..\..\net\lwip\src\core\ipv4\inet_chksum.c><inet_chksum.c>
-File 6,1,<..\..\net\lwip\src\core\ipv4\ip.c><ip.c>
-File 6,1,<..\..\net\lwip\src\core\ipv4\ip_addr.c><ip_addr.c>
-File 6,1,<..\..\net\lwip\src\api\tcpip.c><tcpip.c>
-File 6,1,<..\..\net\lwip\src\api\api_lib.c><api_lib.c>
-File 6,1,<..\..\net\lwip\src\api\api_msg.c><api_msg.c>
-File 6,1,<..\..\net\lwip\src\api\err.c><err.c>
-File 6,1,<..\..\net\lwip\src\api\netbuf.c><netbuf.c>
-File 6,1,<..\..\net\lwip\src\api\netdb.c><netdb.c>
-File 6,1,<..\..\net\lwip\src\api\netifapi.c><netifapi.c>
-File 6,1,<..\..\net\lwip\src\api\sockets.c><sockets.c>
-File 6,1,<..\..\net\lwip\src\arch\sys_arch_init.c><sys_arch_init.c>
-File 6,1,<..\..\net\lwip\src\arch\sys_arch.c><sys_arch.c>
 
 
-Options 1,0,0  // Target 'RT-Thread/LPC2148'
+Options 1,0,0  // Target 'RT-Thread-LPC2148'
  Device (LPC2148)
  Vendor (NXP (founded by Philips))
  Cpu (IRAM(0x40000000-0x40007FFF) IROM(0-0x7FFFF) CLOCK(12000000) CPUTYPE(ARM7TDMI))
diff --git a/bsp/lpc2148/rtconfig.h b/bsp/lpc2148/rtconfig.h
index 14d1ef4e1a..e554b70d2d 100644
--- a/bsp/lpc2148/rtconfig.h
+++ b/bsp/lpc2148/rtconfig.h
@@ -84,7 +84,7 @@
 /* #define RT_USING_CPLUSPLUS */
 
 /* SECTION: DFS options */
-#define RT_USING_DFS
+/* #define RT_USING_DFS */
 /* the max number of mounted filesystem */
 #define DFS_FILESYSTEMS_MAX			2
 /* the max number of opened files 		*/
@@ -94,7 +94,7 @@
 
 /* SECTION: lwip, a lighwight TCP/IP protocol stack */
 /* Using lighweight TCP/IP protocol stack*/
-#define RT_USING_LWIP
+/* #define RT_USING_LWIP */
 
 /* Trace LwIP protocol*/
 /* #define RT_LWIP_DEBUG */
diff --git a/bsp/lpc2148/startup.c b/bsp/lpc2148/startup.c
index eb9b5d065b..a29819b06d 100644
--- a/bsp/lpc2148/startup.c
+++ b/bsp/lpc2148/startup.c
@@ -1,24 +1,24 @@
-/*
- * File      : startup.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2006, RT-Thread Develop 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
- * 2009-02-16     Bernard      first implementation
- */
-
-#include <rthw.h>
-#include <rtthread.h>
+/*
+ * File      : startup.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006, RT-Thread Develop 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
+ * 2009-02-16     Bernard      first implementation
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
 #ifdef RT_USING_FINSH
 #include <finsh.h>
 #endif
-
-#include "board.h"
+
+#include "board.h"
 #ifdef RT_USING_LWIP
 #include <netif/ethernetif.h>
 #include "dm9000.h"
@@ -26,18 +26,18 @@
 #ifdef RT_USING_DFS
 #include "sd.h"
 #endif
-
-/**
- * @addtogroup lpc2148
- */
-
-/*@{*/
-
-#ifdef RT_USING_FINSH
-extern void finsh_system_init(void);
-#endif
-
-extern int  rt_application_init(void);
+
+/**
+ * @addtogroup lpc2148
+ */
+
+/*@{*/
+
+#ifdef RT_USING_FINSH
+extern void finsh_system_init(void);
+#endif
+
+extern int  rt_application_init(void);
 extern void rt_show_version(void);
 #ifdef RT_USING_DEVICE
 extern rt_err_t rt_hw_serial_init(void);
@@ -46,95 +46,95 @@ extern rt_err_t rt_hw_serial_init(void);
 extern void finsh_system_init(void);
 #endif
 
-#ifdef __CC_ARM
+#ifdef __CC_ARM
 extern int Image$$RW_IRAM1$$ZI$$Limit;
 #else
 extern int __bss_end;
 #endif
 
-/**
- * This function will startup RT-Thread RTOS.
- */
-void rtthread_startup(void)
-{
-	/* init hardware interrupt */
-	rt_hw_interrupt_init();
-
-	/* init board */
-	rt_hw_board_init();
-
-	/* init tick */
-	rt_system_tick_init();
-
-	/* init kernel object */
-	rt_system_object_init();
-
-	rt_show_version();
-
-	/* init timer system */
-	rt_system_timer_init();
-
+/**
+ * This function will startup RT-Thread RTOS.
+ */
+void rtthread_startup(void)
+{
+    /* init hardware interrupt */
+    rt_hw_interrupt_init();
+
+    /* init board */
+    rt_hw_board_init();
+
+    /* init tick */
+    rt_system_tick_init();
+
+    /* init kernel object */
+    rt_system_object_init();
+
+    rt_show_version();
+
+    /* init timer system */
+    rt_system_timer_init();
+
 #ifdef RT_USING_HEAP
 #ifdef __CC_ARM
-	rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)0x40008000);
-#else
-	/* init memory system */
-	rt_system_heap_init((void*)&__bss_end, (void*)0x40008000);
-#endif
+    rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)0x40008000);
+#else
+    /* init memory system */
+    rt_system_heap_init((void*)&__bss_end, (void*)0x40008000);
 #endif
-
-	/* init scheduler system */
-	rt_system_scheduler_init();
-
-#ifdef RT_USING_HOOK /* if the hook is used */
-	/* set idle thread hook */
-	rt_thread_idle_sethook(0);
+#endif
+
+    /* init scheduler system */
+    rt_system_scheduler_init();
+
+#ifdef RT_USING_HOOK /* if the hook is used */
+    /* set idle thread hook */
+    rt_thread_idle_sethook(0);
 #endif
 
 #ifdef RT_USING_DEVICE
 #ifdef RT_USING_DFS
-	/* init sd card */
-	rt_hw_sdcard_init();
+    /* init sd card */
+    rt_hw_sdcard_init();
 #endif
 
 #ifdef RT_USING_LWIP
-	eth_system_device_init();
-	/* init ethernetif device */
-	rt_hw_dm9000_init();
+    eth_system_device_init();
+    /* init ethernetif device */
+    rt_hw_dm9000_init();
 #endif
 
-	/* init hardware serial device */
-	rt_hw_serial_init();
+    /* init hardware serial device */
+    rt_hw_serial_init();
 
-	/*init all registed devices*/
-	rt_device_init_all();
+    /*init all registed devices*/
+    rt_device_init_all();
 #endif
-
-	/* init application */
-	rt_application_init();
-
-#ifdef RT_USING_FINSH
-	/* init finsh */
-	finsh_system_init();
-	finsh_set_device("uart1");
-#endif
-
-	/* init idle thread */
-	rt_thread_idle_init();
-
-	/* start scheduler */
-	rt_system_scheduler_start();
-
-	/* never reach here */
-	return ;
+
+    /* init application */
+    rt_application_init();
+
+#ifdef RT_USING_FINSH
+    /* init finsh */
+    finsh_system_init();
+    finsh_set_device("uart1");
+#endif
+
+    /* init idle thread */
+    rt_thread_idle_init();
+
+    /* start scheduler */
+    rt_system_scheduler_start();
+
+    /* never reach here */
+    return ;
 }
-
+
 int main (void)
 {
-	/* invoke rtthread_startup */
-	rtthread_startup();
+    /* invoke rtthread_startup */
+    rtthread_startup();
 
-	return 0;
+    return 0;
 }
-
-/*@}*/
+
+/*@}*/