diff --git a/bsp/lpc408x/applications/startup.c b/bsp/lpc408x/applications/startup.c
index 0ce6fb7df..bcab985a6 100644
--- a/bsp/lpc408x/applications/startup.c
+++ b/bsp/lpc408x/applications/startup.c
@@ -19,7 +19,7 @@
 #include "board.h"
 
 extern int rt_application_init(void);
-
+extern void sram_init(void);
 /**
  * This function will startup RT-Thread RTOS.
  */
diff --git a/bsp/lpc408x/project.uvprojx b/bsp/lpc408x/project.uvprojx
index 369c0d6a9..14f721caf 100644
--- a/bsp/lpc408x/project.uvprojx
+++ b/bsp/lpc408x/project.uvprojx
@@ -369,7 +369,7 @@
               <MiscControls></MiscControls>
               <Define>CORE_M4, RT_USING_ARM_LIBC</Define>
               <Undefine></Undefine>
-              <IncludePath>Libraries/Device/NXP/LPC407x_8x_177x_8x/Include;Libraries/CMSIS/Include;Libraries/Drivers/include;applications;.;drivers;../../include;../../libcpu/arm/cortex-m4;../../libcpu/arm/common;../../components/pthreads;../../components/libc/armlibc;../../components/drivers/include;../../components/drivers/include;../../components/finsh</IncludePath>
+              <IncludePath>Libraries/Device/NXP/LPC407x_8x_177x_8x/Include;Libraries/CMSIS/Include;Libraries/Drivers/include;applications;.;drivers;../../include;../../libcpu/arm/cortex-m4;../../libcpu/arm/common;..\..\components\libc\pthreads;../../components/libc/armlibc;../../components/drivers/include;../../components/drivers/include;../../components/finsh</IncludePath>
             </VariousControls>
           </Cads>
           <Aads>
@@ -607,6 +607,11 @@
               <FileType>1</FileType>
               <FilePath>.\drivers\drv_lpccan.c</FilePath>
             </File>
+            <File>
+              <FileName>drv_sdram.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>.\drivers\drv_sdram.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -720,62 +725,62 @@
             <File>
               <FileName>clock_time.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/clock_time.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\clock_time.c</FilePath>
             </File>
             <File>
               <FileName>mqueue.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/mqueue.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\mqueue.c</FilePath>
             </File>
             <File>
               <FileName>pthread.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/pthread.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\pthread.c</FilePath>
             </File>
             <File>
               <FileName>pthread_attr.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/pthread_attr.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\pthread_attr.c</FilePath>
             </File>
             <File>
               <FileName>pthread_barrier.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/pthread_barrier.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\pthread_barrier.c</FilePath>
             </File>
             <File>
               <FileName>pthread_cond.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/pthread_cond.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\pthread_cond.c</FilePath>
             </File>
             <File>
               <FileName>pthread_mutex.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/pthread_mutex.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\pthread_mutex.c</FilePath>
             </File>
             <File>
               <FileName>pthread_rwlock.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/pthread_rwlock.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\pthread_rwlock.c</FilePath>
             </File>
             <File>
               <FileName>pthread_spin.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/pthread_spin.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\pthread_spin.c</FilePath>
             </File>
             <File>
               <FileName>pthread_tls.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/pthread_tls.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\pthread_tls.c</FilePath>
             </File>
             <File>
               <FileName>sched.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/sched.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\sched.c</FilePath>
             </File>
             <File>
               <FileName>semaphore.c</FileName>
               <FileType>1</FileType>
-              <FilePath>../../components/pthreads/semaphore.c</FilePath>
+              <FilePath>..\..\components\libc\pthreads\semaphore.c</FilePath>
             </File>
           </Files>
         </Group>
diff --git a/bsp/lpc408x/rtconfig.h b/bsp/lpc408x/rtconfig.h
index 9b04e63aa..ce8d0dc90 100644
--- a/bsp/lpc408x/rtconfig.h
+++ b/bsp/lpc408x/rtconfig.h
@@ -151,7 +151,7 @@
 // </section>
 
 // <section name="RT_USING_LWIP" description="lwip, a lightweight TCP/IP protocol stack" default="true" >
-#define RT_USING_LWIP
+//#define RT_USING_LWIP
 // <bool name="RT_LWIP_ICMP" description="Enable ICMP protocol" default="true" />
 #define RT_LWIP_ICMP
 // <bool name="RT_LWIP_IGMP" description="Enable IGMP protocol" default="false" />