diff --git a/bsp/stm32f20x/applications/SConscript b/bsp/stm32f20x/applications/SConscript
new file mode 100644
index 0000000000..362b92fcdf
--- /dev/null
+++ b/bsp/stm32f20x/applications/SConscript
@@ -0,0 +1,11 @@
+Import('RTT_ROOT')
+Import('rtconfig')
+from building import *
+
+cwd     = os.path.join(str(Dir('#')), 'applications')
+src	= Glob('*.c')
+CPPPATH = [cwd, str(Dir('#'))]
+
+group = DefineGroup('Applications', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
\ No newline at end of file
diff --git a/bsp/stm32f20x/applications/application.c b/bsp/stm32f20x/applications/application.c
new file mode 100644
index 0000000000..25316dbaa4
--- /dev/null
+++ b/bsp/stm32f20x/applications/application.c
@@ -0,0 +1,97 @@
+/*
+ * 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
+ */
+
+/**
+ * @addtogroup STM32
+ */
+/*@{*/
+
+#include <board.h>
+#include <rtthread.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
+
+#ifdef RT_USING_LWIP
+#include <lwip/sys.h>
+#include <lwip/api.h>
+#include <netif/ethernetif.h>
+#include "stm32f2x7_eth.h"
+#endif
+
+void rt_init_thread_entry(void* parameter)
+{
+/* Filesystem Initialization */
+#ifdef RT_USING_DFS
+	{
+		/* init the device filesystem */
+		dfs_init();
+
+#ifdef RT_USING_DFS_ELMFAT
+		/* init the elm chan FatFs filesystam*/
+		elm_init();
+
+		/* mount sd card fat partition 1 as root directory */
+		if (dfs_mount("sd0", "/", "elm", 0, 0) == 0)
+		{
+			rt_kprintf("File System initialized!\n");
+		}
+		else
+			rt_kprintf("File System initialzation failed!\n");
+#endif
+	}
+#endif
+
+/* LwIP Initialization */
+#ifdef RT_USING_LWIP
+	{
+		extern void lwip_sys_init(void);
+
+		/* register ethernetif device */
+		eth_system_device_init();
+	
+		/* initialize eth interface */
+		rt_hw_stm32_eth_init();
+	
+		/* re-init device driver */
+		rt_device_init_all();
+
+		/* init lwip system */
+		lwip_sys_init();
+		rt_kprintf("TCP/IP initialized!\n");
+	}
+#endif
+}
+
+int rt_application_init()
+{
+	rt_thread_t tid;
+
+	tid = rt_thread_create("init",
+								rt_init_thread_entry, RT_NULL,
+								2048, RT_THREAD_PRIORITY_MAX/3, 20);
+
+	if (tid != RT_NULL)
+		rt_thread_startup(tid);
+
+	return 0;
+}
+
+/*@}*/
diff --git a/bsp/stm32f20x/applications/startup.c b/bsp/stm32f20x/applications/startup.c
new file mode 100644
index 0000000000..2ce6b62a11
--- /dev/null
+++ b/bsp/stm32f20x/applications/startup.c
@@ -0,0 +1,149 @@
+/*
+ * 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://openlab.rt-thread.com/license/LICENSE
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2006-08-31     Bernard      first implementation
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+
+#include <stm32f2xx.h>
+#include "board.h"
+
+/**
+ * @addtogroup STM32
+ */
+
+/*@{*/
+
+extern int  rt_application_init(void);
+#ifdef RT_USING_FINSH
+extern void finsh_system_init(void);
+extern void finsh_set_device(const char* device);
+#endif
+
+#ifdef __CC_ARM
+extern int Image$$RW_IRAM1$$ZI$$Limit;
+#elif __ICCARM__
+#pragma section="HEAP"
+#else
+extern int __bss_end;
+#endif
+
+#ifdef  DEBUG
+/*******************************************************************************
+* Function Name  : assert_failed
+* Description    : Reports the name of the source file and the source line number
+*                  where the assert error has occurred.
+* Input          : - file: pointer to the source file name
+*                  - line: assert error line source number
+* Output         : None
+* Return         : None
+*******************************************************************************/
+void assert_failed(u8* file, u32 line)
+{
+	rt_kprintf("\n\r Wrong parameter value detected on\r\n");
+	rt_kprintf("       file  %s\r\n", file);
+	rt_kprintf("       line  %d\r\n", line);
+
+	while (1) ;
+}
+#endif
+
+/**
+ * This function will startup RT-Thread RTOS.
+ */
+void rtthread_startup(void)
+{
+	/* init board */
+	rt_hw_board_init();
+
+	/* show version */
+	rt_show_version();
+
+	/* init tick */
+	rt_system_tick_init();
+
+	/* init kernel object */
+	rt_system_object_init();
+
+	/* init timer system */
+	rt_system_timer_init();
+
+#ifdef RT_USING_HEAP
+#if STM32_EXT_SRAM
+	rt_system_heap_init((void*)STM32_EXT_SRAM_BEGIN, (void*)STM32_EXT_SRAM_END);
+#else
+	#ifdef __CC_ARM
+		rt_system_heap_init((void*)&Image$$RW_IRAM1$$ZI$$Limit, (void*)STM32_SRAM_END);
+	#elif __ICCARM__
+	    rt_system_heap_init(__segment_end("HEAP"), (void*)STM32_SRAM_END);
+	#else
+		/* init memory system */
+		rt_system_heap_init((void*)&__bss_end, (void*)STM32_SRAM_END);
+	#endif
+#endif
+#endif
+
+	/* init scheduler system */
+	rt_system_scheduler_init();
+
+#ifdef RT_USING_DFS
+	/* init sdcard driver */
+#if STM32_USE_SDIO
+	rt_hw_sdcard_init();
+#else
+	rt_hw_msd_init();
+#endif
+#endif
+
+	rt_hw_rtc_init();
+
+	/* init all device */
+	rt_device_init_all();
+
+	/* init application */
+	rt_application_init();
+
+#ifdef RT_USING_FINSH
+	/* init finsh */
+	finsh_system_init();
+	finsh_set_device("uart1");
+#endif
+
+    /* init timer thread */
+    rt_system_timer_thread_init();
+
+	/* init idle thread */
+	rt_thread_idle_init();
+
+	/* start scheduler */
+	rt_system_scheduler_start();
+
+	/* never reach here */
+	return ;
+}
+
+int main(void)
+{
+	/* disable interrupt first */
+	rt_hw_interrupt_disable();
+
+	/* init system setting */
+	SystemInit();
+
+	/* startup RT-Thread RTOS */
+	rtthread_startup();
+
+	return 0;
+}
+
+/*@}*/