Merge pull request #417 from BernardXiong/master

[BSP] Add more features for STM32F4.

38 files changed, 1242 insertions, 2260 deletions

diff --git a/bsp/realview-a8/SConstruct b/bsp/realview-a8/SConstruct
index e67d72291f..6d57bc4025 100644
--- a/bsp/realview-a8/SConstruct
+++ b/bsp/realview-a8/SConstruct
@@ -31,8 +31,12 @@ if GetDepend('RT_USING_VMM'):
                   ldfile = rtconfig.LINK_SCRIPT)) != 0:
         print 'failed to generate linker script %s' % rtconfig.LINK_SCRIPT
         sys.exit(255)
-# if the linker script changed, relink the target
-Depends(TARGET, rtconfig.LINK_SCRIPT)
+    # if the linker script changed, relink the target
+    Depends(TARGET, rtconfig.LINK_SCRIPT)
+else:
+    # we should use none-vmm link script
+    link_flags = str(env['LINKFLAGS'])
+    env['LINKFLAGS'] = link_flags.replace('_vmm.lds', '.lds')
 
 # make a building
 DoBuilding(TARGET, objs)
diff --git a/bsp/realview-a8/applications/application.c b/bsp/realview-a8/applications/application.c
index e65878bce5..1b7cb790a3 100644
--- a/bsp/realview-a8/applications/application.c
+++ b/bsp/realview-a8/applications/application.c
@@ -15,32 +15,18 @@
 #include <rtthread.h>
 #include <components.h>
 
-#include <pthread.h>
-
-void *test_task(void *parameter)
+void init_thread(void* parameter)
 {
-    int count = 0;
-
-    while (1)
-    {
-        rt_thread_delay(RT_TICK_PER_SECOND);
-        rt_kprintf("count = %d\n", count ++);
-    }
-
-    return RT_NULL;
+    rt_components_init();
 }
 
 int rt_application_init()
 {
-    // pthread_t tid;
-
-    /* do component initialization */
-    rt_components_init();
-#ifdef RT_USING_NEWLIB
-    libc_system_init(RT_CONSOLE_DEVICE_NAME);
-#endif
+    rt_thread_t tid;
 
-    // pthread_create(&tid, RT_NULL, test_task, RT_NULL);
+    tid = rt_thread_create("init", init_thread, RT_NULL, 
+        1024, RT_THREAD_PRIORITY_MAX/3, 10);
+    if (tid != RT_NULL) rt_thread_startup(tid);
 
     return 0;
 }
diff --git a/bsp/realview-a8/drivers/board.c b/bsp/realview-a8/drivers/board.c
index 8312a4e85f..fd64075456 100644
--- a/bsp/realview-a8/drivers/board.c
+++ b/bsp/realview-a8/drivers/board.c
@@ -38,11 +38,11 @@
 #define SYS_CTRL                         __REG32(REALVIEW_SCTL_BASE)
 
 #ifdef RT_USING_VMM
- #include <vmm.h>
- static rt_uint32_t timer_hw_base = 0;
- #define TIMER_HW_BASE                  (timer_hw_base)
+#include <vmm.h>
+static rt_uint32_t timer_hw_base = 0;
+#define TIMER_HW_BASE                  (timer_hw_base)
 #else
- #define TIMER_HW_BASE                  REALVIEW_TIMER2_3_BASE
+#define TIMER_HW_BASE                  REALVIEW_TIMER2_3_BASE
 #endif
 
 void rt_hw_timer_ack(void)
diff --git a/bsp/realview-a8/drivers/serial.c b/bsp/realview-a8/drivers/serial.c
index 011d10fb99..7df953a282 100644
--- a/bsp/realview-a8/drivers/serial.c
+++ b/bsp/realview-a8/drivers/serial.c
@@ -32,7 +32,7 @@
 
 #include "serial.h"
 #ifdef RT_USING_VMM
- #include <vmm.h>
+#include <vmm.h>
 #endif
 
 struct hw_uart_device
@@ -165,8 +165,8 @@ int rt_hw_uart_init(void)
     config.parity    = PARITY_NONE;
     config.stop_bits = STOP_BITS_1;
     config.invert    = NRZ_NORMAL;
-	config.bufsz     = RT_SERIAL_RB_BUFSZ;
-	
+    config.bufsz     = RT_SERIAL_RB_BUFSZ;
+
 #ifdef RT_USING_UART0
     uart = &_uart0_device;
 #ifdef RT_USING_VMM
@@ -194,7 +194,7 @@ int rt_hw_uart_init(void)
 
     /* register UART1 device */
     rt_hw_serial_register(&_serial1, "uart1",
-        RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX, uart);
     /* enable Rx and Tx of UART */
     UART_CR(uart->hw_base) = (1 << 0) | (1 << 8) | (1 << 9);
 #endif
diff --git a/bsp/realview-a8/rtconfig.h b/bsp/realview-a8/rtconfig.h
index b32ae454ce..9ef916998e 100644
--- a/bsp/realview-a8/rtconfig.h
+++ b/bsp/realview-a8/rtconfig.h
@@ -107,8 +107,8 @@
 // </section>
 
 // <section name="LIBC" description="C Runtime library setting" default="always" >
-// <bool name="RT_USING_NEWLIB" description="Using newlib library, only available under GNU GCC" default="true" />
-#define RT_USING_NEWLIB
+// <bool name="RT_USING_LIBC" description="Using libc library" default="true" />
+#define RT_USING_LIBC
 // <bool name="RT_USING_PTHREADS" description="Using POSIX threads library" default="true" />
 #define RT_USING_PTHREADS
 // </section>
@@ -147,7 +147,7 @@
 #define RT_USING_LOGTRACE
 
 // <section name="RT_USING_VMM" description="Enable RT-Thread hypervisor" default="true" >
-#define RT_USING_VMM
+// #define RT_USING_VMM
 // </section>
 
 #endif
diff --git a/bsp/realview-a8/rtconfig.py b/bsp/realview-a8/rtconfig.py
index 85f36831b3..f921c68217 100644
--- a/bsp/realview-a8/rtconfig.py
+++ b/bsp/realview-a8/rtconfig.py
@@ -21,8 +21,6 @@ if os.getenv('RTT_EXEC_PATH'):
 	EXEC_PATH = os.getenv('RTT_EXEC_PATH')
 
 BUILD = 'debug'
-VMM = True
-#VMM = False
 
 if PLATFORM == 'gcc':
     # toolchains
@@ -40,10 +38,7 @@ if PLATFORM == 'gcc':
     DEVICE = ' -march=armv7-a -mtune=cortex-a8 -mfpu=vfpv3-d16 -ftree-vectorize -ffast-math -mfloat-abi=softfp'
     CFLAGS = DEVICE + ' -Wall'
     AFLAGS = ' -c' + DEVICE + ' -x assembler-with-cpp -D__ASSEMBLY__'
-    if VMM:
-        LINK_SCRIPT = 'realview_vmm.lds'
-    else:
-        LINK_SCRIPT = 'realview.lds'
+    LINK_SCRIPT = 'realview_vmm.lds'
     LFLAGS = DEVICE + ' -Wl,--gc-sections,-Map=realview.map,-cref,-u,system_vectors'+\
                       ' -T %s' % LINK_SCRIPT
 
diff --git a/bsp/stm32f40x/SConstruct b/bsp/stm32f40x/SConstruct
index a58e07aa4b..99c2876aab 100644
--- a/bsp/stm32f40x/SConstruct
+++ b/bsp/stm32f40x/SConstruct
@@ -8,7 +8,12 @@ else:
     RTT_ROOT = os.path.normpath(os.getcwd() + '/../..')
 
 sys.path = sys.path + [os.path.join(RTT_ROOT, 'tools')]
-from building import *
+try:
+    from building import *
+except:
+    print 'Cannot found RT-Thread root directory, please check RTT_ROOT'
+    print RTT_ROOT
+    exit(-1)
 
 TARGET = 'rtthread-stm32f4xx.' + rtconfig.TARGET_EXT
 
diff --git a/bsp/stm32f40x/drivers/board.c b/bsp/stm32f40x/drivers/board.c
index 0414916a5a..ba46e903ea 100644
--- a/bsp/stm32f40x/drivers/board.c
+++ b/bsp/stm32f40x/drivers/board.c
@@ -17,6 +17,8 @@
 
 #include "stm32f4xx.h"
 #include "board.h"
+#include "usart.h"
+#include "gpio.h"
 
 /**
  * @addtogroup STM32
@@ -91,7 +93,9 @@ void rt_hw_board_init()
     /* Configure the SysTick */
     SysTick_Configuration();
 
-    rt_hw_usart_init();
+    stm32_hw_usart_init();
+    stm32_hw_pin_init();
+    
 #ifdef RT_USING_CONSOLE
     rt_console_set_device(CONSOLE_DEVICE);
 #endif
diff --git a/bsp/stm32f40x/drivers/board.h b/bsp/stm32f40x/drivers/board.h
index b3a1cb4a08..97b506c146 100644
--- a/bsp/stm32f40x/drivers/board.h
+++ b/bsp/stm32f40x/drivers/board.h
@@ -40,11 +40,6 @@
 #define STM32_SRAM_SIZE         128
 #define STM32_SRAM_END          (0x20000000 + STM32_SRAM_SIZE * 1024)
 
-//#define RT_USING_UART1
-#define RT_USING_UART2
-//#define RT_USING_UART3
-//#define RT_USING_UART6
-
 // <o> Console on USART: <0=> no console <1=>USART 1 <2=>USART 2 <3=> USART 3
 // 	<i>Default: 1
 #define STM32_CONSOLE_USART		2
@@ -63,11 +58,6 @@ void rt_hw_board_init(void);
 
 #define FINSH_DEVICE_NAME   CONSOLE_DEVICE
 
-void rt_hw_usart_init(void);
-
-/* SD Card init function */
-void rt_hw_msd_init(void);
-
 #endif
 
 // <<< Use Configuration Wizard in Context Menu >>>
diff --git a/bsp/stm32f40x/drivers/gpio.c b/bsp/stm32f40x/drivers/gpio.c
new file mode 100644
index 0000000000..88819f73b5
--- /dev/null
+++ b/bsp/stm32f40x/drivers/gpio.c
@@ -0,0 +1,213 @@
+/*
+ * File      : gpio.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2015, 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
+ * 2015-01-05     Bernard      the first version
+ */
+
+#include <rthw.h>
+#include <rtdevice.h>
+#include <board.h>
+
+#ifdef RT_USING_PIN
+
+/* STM32 GPIO driver */
+struct pin_index
+{
+    int index;
+    uint32_t rcc;
+    GPIO_TypeDef *gpio;
+    uint32_t pin;
+};
+
+static const struct pin_index pins[] =
+{
+    { 0, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_7},
+    { 1, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_6},
+    { 2, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_8},
+    { 3, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_11},
+    { 4, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_14},
+    { 5, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_13},
+    { 6, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_11},
+    { 7, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_9},
+
+    { 8, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_12},
+    { 9, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_13},
+    {10, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_14},
+    {11, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_15},
+    {12, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_6},
+    {13, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_5},
+
+    {14, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_8},
+    {15, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_9},
+    {16, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_5},
+    {17, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_6},
+    {18, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_6},
+    {19, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_7},
+    {20, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_9},
+    {21, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_8},
+
+    {22, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_12},
+    {23, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_2},
+    {24, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_1},
+    {25, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_0},
+    {26, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_9},
+    {27, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_13},
+    {28, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_15},
+    {29, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_12},
+    {30, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_10},
+    {31, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_8},
+    {32, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_7},
+    {33, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_4},
+    {34, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_3},
+    {35, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_2},
+    {36, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_1},
+    {37, RCC_AHB1Periph_GPIOE, GPIOE, GPIO_Pin_0},
+    {38, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_11},
+    {39, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_10},
+    {40, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_7},
+    {41, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_3},
+    {42, RCC_AHB1Periph_GPIOD, GPIOD, GPIO_Pin_4},
+    {43, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_8},
+    {44, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_15},
+    {45, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_14},
+    {46, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_11},
+    {47, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_5},
+    {48, RCC_AHB1Periph_GPIOC, GPIOC, GPIO_Pin_10},
+    {49, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_15},
+    {50, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_4},
+    {51, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_7},
+    {52, RCC_AHB1Periph_GPIOB, GPIOB, GPIO_Pin_3},
+    {53, RCC_AHB1Periph_GPIOA, GPIOA, GPIO_Pin_4},
+};
+
+#define ITEM_NUM(items) sizeof(items)/sizeof(items[0])
+const struct pin_index *get_pin(uint8_t pin)
+{
+    const struct pin_index *index;
+
+    if (pin < ITEM_NUM(pins))
+    {
+        index = &pins[pin];
+    }
+    else
+    {
+        index = RT_NULL;
+    }
+
+    return index;
+};
+
+void stm32_pin_write(rt_device_t dev, rt_base_t pin, rt_base_t value)
+{
+    const struct pin_index *index;
+
+    index = get_pin(pin);
+    if (index == RT_NULL)
+    {
+        return;
+    }
+
+    if (value == PIN_LOW)
+    {
+        GPIO_ResetBits(index->gpio, index->pin);
+    }
+    else
+    {
+        GPIO_SetBits(index->gpio, index->pin);
+    }
+}
+
+int stm32_pin_read(rt_device_t dev, rt_base_t pin)
+{
+    int value;
+    const struct pin_index *index;
+
+    value = PIN_LOW;
+
+    index = get_pin(pin);
+    if (index == RT_NULL)
+    {
+        return value;
+    }
+
+    if (GPIO_ReadInputDataBit(index->gpio, index->pin) == Bit_RESET)
+    {
+        value = PIN_LOW;
+    }
+    else
+    {
+        value = PIN_HIGH;
+    }
+
+    return value;
+}
+
+void stm32_pin_mode(rt_device_t dev, rt_base_t pin, rt_base_t mode)
+{
+    const struct pin_index *index;
+    GPIO_InitTypeDef  GPIO_InitStructure;
+
+    index = get_pin(pin);
+    if (index == RT_NULL)
+    {
+        return;
+    }
+
+    /* GPIO Periph clock enable */
+    RCC_AHB1PeriphClockCmd(index->rcc, ENABLE);
+
+    /* Configure GPIO_InitStructure */
+    GPIO_InitStructure.GPIO_Pin     = index->pin;
+    GPIO_InitStructure.GPIO_OType   = GPIO_OType_PP;
+    GPIO_InitStructure.GPIO_Speed   = GPIO_Speed_100MHz;
+
+    if (mode == PIN_MODE_OUTPUT)
+    {
+        /* output setting */
+        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_OUT;
+        GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+    }
+    else if (mode == PIN_MODE_INPUT)
+    {
+        /* input setting: not pull. */
+        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
+        GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
+    }
+    else if (mode == PIN_MODE_INPUT_PULLUP)
+    {
+        /* input setting: pull up. */
+        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
+        GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP;
+    }
+    else
+    {
+        /* input setting:default. */
+        GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
+        GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_DOWN;
+    }
+    GPIO_Init(index->gpio, &GPIO_InitStructure);
+}
+
+const static struct rt_pin_ops _stm32_pin_ops =
+{
+    stm32_pin_mode,
+    stm32_pin_write,
+    stm32_pin_read,
+};
+
+int stm32_hw_pin_init(void)
+{
+    rt_device_pin_register("pin", &_stm32_pin_ops, RT_NULL);
+    return 0;
+}
+INIT_BOARD_EXPORT(stm32_hw_pin_init);
+
+#endif
diff --git a/bsp/stm32f40x/drivers/gpio.h b/bsp/stm32f40x/drivers/gpio.h
new file mode 100644
index 0000000000..a4947b100d
--- /dev/null
+++ b/bsp/stm32f40x/drivers/gpio.h
@@ -0,0 +1,19 @@
+/*
+ * File      : gpio.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2015, 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
+ * 2015-01-05     Bernard      the first version
+ */
+#ifndef GPIO_H__
+#define GPIO_H__
+
+int stm32_hw_pin_init(void);
+
+#endif
diff --git a/bsp/stm32f40x/drivers/serial.c b/bsp/stm32f40x/drivers/serial.c
deleted file mode 100644
index 2ec3f8ec2d..0000000000
--- a/bsp/stm32f40x/drivers/serial.c
+++ /dev/null
@@ -1,418 +0,0 @@
-/*
- * File      : serial.c
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2009, 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
- * 2009-02-05     Bernard      first version
- * 2009-10-25     Bernard      fix rt_serial_read bug when there is no data
- *                             in the buffer.
- * 2010-03-29     Bernard      cleanup code.
- */
-
-#include "serial.h"
-#include <stm32f4xx_dma.h>
-#include <stm32f4xx_usart.h>
-
-static void rt_serial_enable_dma(DMA_Stream_TypeDef* dma_channel,
-    rt_uint32_t address, rt_uint32_t size);
-
-/**
- * @addtogroup STM32
- */
-/*@{*/
-
-/* RT-Thread Device Interface */
-static rt_err_t rt_serial_init (rt_device_t dev)
-{
-    struct stm32_serial_device* uart = (struct stm32_serial_device*) dev->user_data;
-
-    if (!(dev->flag & RT_DEVICE_FLAG_ACTIVATED))
-    {
-        if (dev->flag & RT_DEVICE_FLAG_INT_RX)
-        {
-            rt_memset(uart->int_rx->rx_buffer, 0,
-                sizeof(uart->int_rx->rx_buffer));
-            uart->int_rx->read_index = 0;
-            uart->int_rx->save_index = 0;
-        }
-
-        if (dev->flag & RT_DEVICE_FLAG_DMA_TX)
-        {
-            RT_ASSERT(uart->dma_tx->dma_channel != RT_NULL);
-            uart->dma_tx->list_head = uart->dma_tx->list_tail = RT_NULL;
-
-            /* init data node memory pool */
-            rt_mp_init(&(uart->dma_tx->data_node_mp), "dn",
-                uart->dma_tx->data_node_mem_pool,
-                sizeof(uart->dma_tx->data_node_mem_pool),
-                sizeof(struct stm32_serial_data_node));
-        }
-
-        /* Enable USART */
-        USART_Cmd(uart->uart_device, ENABLE);
-
-        dev->flag |= RT_DEVICE_FLAG_ACTIVATED;
-    }
-
-    return RT_EOK;
-}
-
-static rt_err_t rt_serial_open(rt_device_t dev, rt_uint16_t oflag)
-{
-    return RT_EOK;
-}
-
-static rt_err_t rt_serial_close(rt_device_t dev)
-{
-    return RT_EOK;
-}
-
-static rt_size_t rt_serial_read (rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
-{
-    rt_uint8_t* ptr;
-    rt_err_t err_code;
-    struct stm32_serial_device* uart;
-
-    ptr = buffer;
-    err_code = RT_EOK;
-    uart = (struct stm32_serial_device*)dev->user_data;
-
-    if (dev->flag & RT_DEVICE_FLAG_INT_RX)
-    {
-        /* interrupt mode Rx */
-        while (size)
-        {
-            rt_base_t level;
-
-            /* disable interrupt */
-            level = rt_hw_interrupt_disable();
-
-            if (uart->int_rx->read_index != uart->int_rx->save_index)
-            {
-                /* read a character */
-                *ptr++ = uart->int_rx->rx_buffer[uart->int_rx->read_index];
-                size--;
-
-                /* move to next position */
-                uart->int_rx->read_index ++;
-                if (uart->int_rx->read_index >= UART_RX_BUFFER_SIZE)
-                    uart->int_rx->read_index = 0;
-            }
-            else
-            {
-                /* set error code */
-                err_code = -RT_EEMPTY;
-
-                /* enable interrupt */
-                rt_hw_interrupt_enable(level);
-                break;
-            }
-
-            /* enable interrupt */
-            rt_hw_interrupt_enable(level);
-        }
-    }
-    else
-    {
-        /* polling mode */
-        while ((rt_uint32_t)ptr - (rt_uint32_t)buffer < size)
-        {
-            while (uart->uart_device->SR & USART_FLAG_RXNE)
-            {
-                *ptr = uart->uart_device->DR & 0xff;
-                ptr ++;
-            }
-        }
-    }
-
-    /* set error code */
-    rt_set_errno(err_code);
-    return (rt_uint32_t)ptr - (rt_uint32_t)buffer;
-}
-
-static void rt_serial_enable_dma(DMA_Stream_TypeDef* dma_channel,
-    rt_uint32_t address, rt_uint32_t size)
-{
-    RT_ASSERT(dma_channel != RT_NULL);
-
-    /* disable DMA */
-    DMA_Cmd(dma_channel, DISABLE);
-
-    /* set buffer address */
-    dma_channel->M0AR = address;
-    /* set size */
-    dma_channel->NDTR = size;
-
-    /* enable DMA */
-    DMA_Cmd(dma_channel, ENABLE);
-}
-
-static rt_size_t rt_serial_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
-{
-    rt_uint8_t* ptr;
-    rt_err_t err_code;
-    struct stm32_serial_device* uart;
-
-    err_code = RT_EOK;
-    ptr = (rt_uint8_t*)buffer;
-    uart = (struct stm32_serial_device*)dev->user_data;
-
-    if (dev->flag & RT_DEVICE_FLAG_INT_TX)
-    {
-        /* interrupt mode Tx, does not support */
-        RT_ASSERT(0);
-    }
-    else if (dev->flag & RT_DEVICE_FLAG_DMA_TX)
-    {
-        /* DMA mode Tx */
-
-        /* allocate a data node */
-        struct stm32_serial_data_node* data_node = (struct stm32_serial_data_node*)
-            rt_mp_alloc (&(uart->dma_tx->data_node_mp), RT_WAITING_FOREVER);
-        if (data_node == RT_NULL)
-        {
-            /* set error code */
-            err_code = -RT_ENOMEM;
-        }
-        else
-        {
-            rt_uint32_t level;
-
-            /* fill data node */
-            data_node->data_ptr     = ptr;
-            data_node->data_size    = size;
-
-            /* insert to data link */
-            data_node->next = RT_NULL;
-
-            /* disable interrupt */
-            level = rt_hw_interrupt_disable();
-
-            data_node->prev = uart->dma_tx->list_tail;
-            if (uart->dma_tx->list_tail != RT_NULL)
-                uart->dma_tx->list_tail->next = data_node;
-            uart->dma_tx->list_tail = data_node;
-
-            if (uart->dma_tx->list_head == RT_NULL)
-            {
-                /* start DMA to transmit data */
-                uart->dma_tx->list_head = data_node;
-
-                /* Enable DMA Channel */
-                rt_serial_enable_dma(uart->dma_tx->dma_channel,
-                    (rt_uint32_t)uart->dma_tx->list_head->data_ptr,
-                    uart->dma_tx->list_head->data_size);
-            }
-
-            /* enable interrupt */
-            rt_hw_interrupt_enable(level);
-        }
-    }
-    else
-    {
-        /* polling mode */
-        if (dev->flag & RT_DEVICE_FLAG_STREAM)
-        {
-            /* stream mode */
-            while (size)
-            {
-                if (*ptr == '\n')
-                {
-                    while (!(uart->uart_device->SR & USART_FLAG_TXE));
-                    uart->uart_device->DR = '\r';
-                }
-
-                while (!(uart->uart_device->SR & USART_FLAG_TXE));
-                uart->uart_device->DR = (*ptr & 0x1FF);
-
-                ++ptr; --size;
-            }
-        }
-        else
-        {
-            /* write data directly */
-            while (size)
-            {
-                while (!(uart->uart_device->SR & USART_FLAG_TXE));
-                uart->uart_device->DR = (*ptr & 0x1FF);
-
-                ++ptr; --size;
-            }
-        }
-    }
-
-    /* set error code */
-    rt_set_errno(err_code);
-
-    return (rt_uint32_t)ptr - (rt_uint32_t)buffer;
-}
-
-static rt_err_t rt_serial_control (rt_device_t dev, rt_uint8_t cmd, void *args)
-{
-    struct stm32_serial_device* uart;
-
-    RT_ASSERT(dev != RT_NULL);
-
-    uart = (struct stm32_serial_device*)dev->user_data;
-    switch (cmd)
-    {
-    case RT_DEVICE_CTRL_SUSPEND:
-        /* suspend device */
-        dev->flag |= RT_DEVICE_FLAG_SUSPENDED;
-        USART_Cmd(uart->uart_device, DISABLE);
-        break;
-
-    case RT_DEVICE_CTRL_RESUME:
-        /* resume device */
-        dev->flag &= ~RT_DEVICE_FLAG_SUSPENDED;
-        USART_Cmd(uart->uart_device, ENABLE);
-        break;
-    }
-
-    return RT_EOK;
-}
-
-/*
- * serial register for STM32
- * support STM32F103VB and STM32F103ZE
- */
-rt_err_t rt_hw_serial_register(rt_device_t device, const char* name, rt_uint32_t flag, struct stm32_serial_device *serial)
-{
-    RT_ASSERT(device != RT_NULL);
-
-    if ((flag & RT_DEVICE_FLAG_DMA_RX) ||
-        (flag & RT_DEVICE_FLAG_INT_TX))
-    {
-        RT_ASSERT(0);
-    }
-
-    device->type        = RT_Device_Class_Char;
-    device->rx_indicate = RT_NULL;
-    device->tx_complete = RT_NULL;
-    device->init        = rt_serial_init;
-    device->open        = rt_serial_open;
-    device->close       = rt_serial_close;
-    device->read        = rt_serial_read;
-    device->write       = rt_serial_write;
-    device->control     = rt_serial_control;
-    device->user_data   = serial;
-
-    /* register a character device */
-    return rt_device_register(device, name, RT_DEVICE_FLAG_RDWR | flag);
-}
-
-/* ISR for serial interrupt */
-void rt_hw_serial_isr(rt_device_t device)
-{
-    struct stm32_serial_device* uart = (struct stm32_serial_device*) device->user_data;
-
-    if(USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
-    {
-        /* interrupt mode receive */
-        RT_ASSERT(device->flag & RT_DEVICE_FLAG_INT_RX);
-
-        /* save on rx buffer */
-        while (uart->uart_device->SR & USART_FLAG_RXNE)
-        {
-            rt_base_t level;
-
-            /* disable interrupt */
-            level = rt_hw_interrupt_disable();
-
-            /* save character */
-            uart->int_rx->rx_buffer[uart->int_rx->save_index] = uart->uart_device->DR & 0xff;
-            uart->int_rx->save_index ++;
-            if (uart->int_rx->save_index >= UART_RX_BUFFER_SIZE)
-                uart->int_rx->save_index = 0;
-
-            /* if the next position is read index, discard this 'read char' */
-            if (uart->int_rx->save_index == uart->int_rx->read_index)
-            {
-                uart->int_rx->read_index ++;
-                if (uart->int_rx->read_index >= UART_RX_BUFFER_SIZE)
-                    uart->int_rx->read_index = 0;
-            }
-
-            /* enable interrupt */
-            rt_hw_interrupt_enable(level);
-        }
-
-        /* clear interrupt */
-        USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
-
-        /* invoke callback */
-        if (device->rx_indicate != RT_NULL)
-        {
-            rt_size_t rx_length;
-
-            /* get rx length */
-            rx_length = uart->int_rx->read_index > uart->int_rx->save_index ?
-                UART_RX_BUFFER_SIZE - uart->int_rx->read_index + uart->int_rx->save_index :
-                uart->int_rx->save_index - uart->int_rx->read_index;
-
-            device->rx_indicate(device, rx_length);
-        }
-    }
-
-    if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
-    {
-        /* clear interrupt */
-        USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
-    }
-}
-
-/*
- * ISR for DMA mode Tx
- */
-void rt_hw_serial_dma_tx_isr(rt_device_t device)
-{
-    rt_uint32_t level;
-    struct stm32_serial_data_node* data_node;
-    struct stm32_serial_device* uart = (struct stm32_serial_device*) device->user_data;
-
-    /* DMA mode receive */
-    RT_ASSERT(device->flag & RT_DEVICE_FLAG_DMA_TX);
-
-    /* get the first data node */
-    data_node = uart->dma_tx->list_head;
-    RT_ASSERT(data_node != RT_NULL);
-
-    /* invoke call to notify tx complete */
-    if (device->tx_complete != RT_NULL)
-        device->tx_complete(device, data_node->data_ptr);
-
-    /* disable interrupt */
-    level = rt_hw_interrupt_disable();
-
-    /* remove list head */
-    uart->dma_tx->list_head = data_node->next;
-    if (uart->dma_tx->list_head == RT_NULL) /* data link empty */
-        uart->dma_tx->list_tail = RT_NULL;
-
-    /* enable interrupt */
-    rt_hw_interrupt_enable(level);
-
-    /* release data node memory */
-    rt_mp_free(data_node);
-
-    if (uart->dma_tx->list_head != RT_NULL)
-    {
-        /* transmit next data node */
-        rt_serial_enable_dma(uart->dma_tx->dma_channel,
-            (rt_uint32_t)uart->dma_tx->list_head->data_ptr,
-            uart->dma_tx->list_head->data_size);
-    }
-    else
-    {
-        /* no data to be transmitted, disable DMA */
-        DMA_Cmd(uart->dma_tx->dma_channel, DISABLE);
-    }
-}
-
-/*@}*/
diff --git a/bsp/stm32f40x/drivers/serial.h b/bsp/stm32f40x/drivers/serial.h
deleted file mode 100644
index 62c24a729e..0000000000
--- a/bsp/stm32f40x/drivers/serial.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * File      : serial.h
- * This file is part of RT-Thread RTOS
- * COPYRIGHT (C) 2009 - 2010, 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      first version
- * 2010-03-29     Bernard      remove interrupt tx and DMA rx mode.
- */
-#ifndef __RT_HW_SERIAL_H__
-#define __RT_HW_SERIAL_H__
-
-#include <rthw.h>
-#include <rtthread.h>
-
-/* STM32F40x library definitions */
-#include <stm32f4xx.h>
-
-#define UART_RX_BUFFER_SIZE		64
-#define UART_TX_DMA_NODE_SIZE	4
-
-/* data node for Tx Mode */
-struct stm32_serial_data_node
-{
-	rt_uint8_t *data_ptr;
-	rt_size_t  data_size;
-	struct stm32_serial_data_node *next, *prev;
-};
-struct stm32_serial_dma_tx
-{
-	/* DMA Channel */
-	DMA_Stream_TypeDef* dma_channel;
-
-	/* data list head and tail */
-	struct stm32_serial_data_node *list_head, *list_tail;
-
-	/* data node memory pool */
-	struct rt_mempool data_node_mp;
-	rt_uint8_t data_node_mem_pool[UART_TX_DMA_NODE_SIZE *
-		(sizeof(struct stm32_serial_data_node) + sizeof(void*))];
-};
-
-struct stm32_serial_int_rx
-{
-	rt_uint8_t  rx_buffer[UART_RX_BUFFER_SIZE];
-	rt_uint32_t read_index, save_index;
-};
-
-struct stm32_serial_device
-{
-	USART_TypeDef* uart_device;
-
-	/* rx structure */
-	struct stm32_serial_int_rx* int_rx;
-
-	/* tx structure */
-	struct stm32_serial_dma_tx* dma_tx;
-};
-
-rt_err_t rt_hw_serial_register(rt_device_t device, const char* name, rt_uint32_t flag, struct stm32_serial_device *serial);
-
-void rt_hw_serial_isr(rt_device_t device);
-void rt_hw_serial_dma_tx_isr(rt_device_t device);
-
-#endif
diff --git a/bsp/stm32f40x/drivers/stm32f4xx_it.c b/bsp/stm32f40x/drivers/stm32f4xx_it.c
index 6c4ea2226a..c2dd528276 100644
--- a/bsp/stm32f40x/drivers/stm32f4xx_it.c
+++ b/bsp/stm32f40x/drivers/stm32f4xx_it.c
@@ -55,16 +55,6 @@ void NMI_Handler(void)
 }
 
 /**
-  * @brief  This function handles Hard Fault exception.
-  * @param  None
-  * @retval None
-  */
-//void HardFault_Handler(void)
-//{
-//    // definition in libcpu/arm/cortex-m4/context_*.S
-//}
-
-/**
   * @brief  This function handles Memory Manage exception.
   * @param  None
   * @retval None
@@ -113,100 +103,6 @@ void SVC_Handler(void)
 }
 
 /**
-  * @brief  This function handles Debug Monitor exception.
-  * @param  None
-  * @retval None
-  */
-//void DebugMon_Handler(void)
-//{
-    // defined in gdb/libcpu/cortexm/gdb_gcc.S
-//}
-
-/**
-  * @brief  This function handles PendSVC exception.
-  * @param  None
-  * @retval None
-  */
-//void PendSV_Handler(void)
-//{
-//    // defined in libcpu/arm/cortex-m4/context_*.S
-//}
-
-/**
-  * @brief  This function handles SysTick Handler.
-  * @param  None
-  * @retval None
-  */
-//void SysTick_Handler(void)
-//{
-//    // defined in boarc.c
-//}
-
-/******************************************************************************/
-/*                 STM32F4xx Peripherals Interrupt Handlers                   */
-/*  Add here the Interrupt Handler for the used peripheral(s) (PPP), for the  */
-/*  available peripheral interrupt handler's name please refer to the startup */
-/*  file (startup_stm32f4xx.s).                                               */
-/******************************************************************************/
-
-/**
-  * @brief  This function handles PPP interrupt request.
-  * @param  None
-  * @retval None
-  */
-/*void PPP_IRQHandler(void)
-{
-}*/
-
-void USART1_IRQHandler(void)
-{
-#ifdef RT_USING_UART1
-    extern struct rt_device uart1_device;
-	extern void rt_hw_serial_isr(struct rt_device *device);
-
-    /* enter interrupt */
-    rt_interrupt_enter();
-
-    rt_hw_serial_isr(&uart1_device);
-
-    /* leave interrupt */
-    rt_interrupt_leave();
-#endif
-}
-
-void USART2_IRQHandler(void)
-{
-#ifdef RT_USING_UART2
-    extern struct rt_device uart2_device;
-	extern void rt_hw_serial_isr(struct rt_device *device);
-
-    /* enter interrupt */
-    rt_interrupt_enter();
-
-    rt_hw_serial_isr(&uart2_device);
-
-    /* leave interrupt */
-    rt_interrupt_leave();
-#endif
-}
-
-void USART3_IRQHandler(void)
-{
-#ifdef RT_USING_UART3
-    extern struct rt_device uart3_device;
-	extern void rt_hw_serial_isr(struct rt_device *device);
-
-    /* enter interrupt */
-    rt_interrupt_enter();
-
-    rt_hw_serial_isr(&uart3_device);
-
-    /* leave interrupt */
-    rt_interrupt_leave();
-#endif
-}
-
-/**
   * @}
   */
 
diff --git a/bsp/stm32f40x/drivers/usart.c b/bsp/stm32f40x/drivers/usart.c
index d352081d2b..2b21748ac2 100644
--- a/bsp/stm32f40x/drivers/usart.c
+++ b/bsp/stm32f40x/drivers/usart.c
@@ -12,85 +12,22 @@
  * 2009-01-05     Bernard      the first version
  * 2010-03-29     Bernard      remove interrupt Tx and DMA Rx mode
  * 2012-02-08     aozima       update for F4.
+ * 2012-07-28     aozima       update for ART board.
  */
 
 #include "stm32f4xx.h"
 #include "usart.h"
 #include "board.h"
-#include <serial.h>
 
-/*
- * Use UART1 as console output and finsh input
- * interrupt Rx and poll Tx (stream mode)
- *
- * Use UART2 with interrupt Rx and poll Tx
- * Use UART3 with DMA Tx and interrupt Rx -- DMA channel 2
- *
- * USART DMA setting on STM32
- * USART1 Tx --> DMA Channel 4
- * USART1 Rx --> DMA Channel 5
- * USART2 Tx --> DMA Channel 7
- * USART2 Rx --> DMA Channel 6
- * USART3 Tx --> DMA Channel 2
- * USART3 Rx --> DMA Channel 3
- */
-
-#ifdef RT_USING_UART1
-struct stm32_serial_int_rx uart1_int_rx;
-struct stm32_serial_device uart1 =
-{
-    USART1,
-    &uart1_int_rx,
-    RT_NULL
-};
-struct rt_device uart1_device;
-#endif
+#include <rtdevice.h>
 
-#ifdef RT_USING_UART2
-struct stm32_serial_int_rx uart2_int_rx;
-struct stm32_serial_device uart2 =
-{
-    USART2,
-    &uart2_int_rx,
-    RT_NULL
-};
-struct rt_device uart2_device;
-#endif
-
-#ifdef RT_USING_UART3
-struct stm32_serial_int_rx uart3_int_rx;
-struct stm32_serial_dma_tx uart3_dma_tx;
-struct stm32_serial_device uart3 =
-{
-    USART3,
-    &uart3_int_rx,
-    &uart3_dma_tx
-};
-struct rt_device uart3_device;
-#endif
-
-#ifdef RT_USING_UART6
-struct stm32_serial_int_rx uart6_int_rx;
-struct stm32_serial_device uart6 =
-{
-    USART6,
-    &uart6_int_rx,
-    RT_NULL
-};
-struct rt_device uart6_device;
-#endif
-
-//#define USART1_DR_Base  0x40013804
-//#define USART2_DR_Base  0x40004404
-//#define USART3_DR_Base  0x40004804
-
-/* USART1_REMAP = 0 */
-#define UART1_GPIO_TX       GPIO_Pin_9
-#define UART1_TX_PIN_SOURCE GPIO_PinSource9
-#define UART1_GPIO_RX       GPIO_Pin_10
-#define UART1_RX_PIN_SOURCE GPIO_PinSource10
-#define UART1_GPIO          GPIOA
-#define UART1_GPIO_RCC      RCC_AHB1Periph_GPIOA
+/* UART GPIO define. */
+#define UART1_GPIO_TX       GPIO_Pin_6
+#define UART1_TX_PIN_SOURCE GPIO_PinSource6
+#define UART1_GPIO_RX       GPIO_Pin_7
+#define UART1_RX_PIN_SOURCE GPIO_PinSource7
+#define UART1_GPIO          GPIOB
+#define UART1_GPIO_RCC      RCC_AHB1Periph_GPIOB
 #define RCC_APBPeriph_UART1 RCC_APB2Periph_USART1
 #define UART1_TX_DMA        DMA1_Channel4
 #define UART1_RX_DMA        DMA1_Channel5
@@ -102,58 +39,248 @@ struct rt_device uart6_device;
 #define UART2_GPIO          GPIOA
 #define UART2_GPIO_RCC      RCC_AHB1Periph_GPIOA
 #define RCC_APBPeriph_UART2 RCC_APB1Periph_USART2
+#define UART2_TX_DMA        DMA1_Channel4
+#define UART2_RX_DMA        DMA1_Channel5
 
-/* USART3_REMAP[1:0] = 00 */
-#define UART3_GPIO_TX       GPIO_Pin_10
-#define UART3_TX_PIN_SOURCE GPIO_PinSource10
-#define UART3_GPIO_RX       GPIO_Pin_11
-#define UART3_RX_PIN_SOURCE GPIO_PinSource11
-#define UART3_GPIO          GPIOB
-#define UART3_GPIO_RCC      RCC_AHB1Periph_GPIOB
+#define UART3_GPIO_TX       GPIO_Pin_8
+#define UART3_TX_PIN_SOURCE GPIO_PinSource8
+#define UART3_GPIO_RX       GPIO_Pin_9
+#define UART3_RX_PIN_SOURCE GPIO_PinSource9
+#define UART3_GPIO          GPIOD
+#define UART3_GPIO_RCC      RCC_AHB1Periph_GPIOD
 #define RCC_APBPeriph_UART3 RCC_APB1Periph_USART3
 #define UART3_TX_DMA        DMA1_Stream1
 #define UART3_RX_DMA        DMA1_Stream3
 
-#define UART6_GPIO_TX       GPIO_Pin_6
-#define UART6_TX_PIN_SOURCE GPIO_PinSource6
-#define UART6_GPIO_RX       GPIO_Pin_7
-#define UART6_RX_PIN_SOURCE GPIO_PinSource7
-#define UART6_GPIO          GPIOC
-#define UART6_GPIO_RCC      RCC_AHB1Periph_GPIOC
-#define RCC_APBPeriph_UART6 RCC_APB2Periph_USART6
+/* STM32 uart driver */
+struct stm32_uart
+{
+    USART_TypeDef *uart_device;
+    IRQn_Type irq;
+};
+
+static rt_err_t stm32_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
+{
+    struct stm32_uart *uart;
+    USART_InitTypeDef USART_InitStructure;
+
+    RT_ASSERT(serial != RT_NULL);
+    RT_ASSERT(cfg != RT_NULL);
+
+    uart = (struct stm32_uart *)serial->parent.user_data;
+
+    if (cfg->baud_rate == BAUD_RATE_9600)
+        USART_InitStructure.USART_BaudRate = 9600;
+    else if (cfg->baud_rate == BAUD_RATE_115200)
+        USART_InitStructure.USART_BaudRate = 115200;
+
+    if (cfg->data_bits == DATA_BITS_8)
+        USART_InitStructure.USART_WordLength = USART_WordLength_8b;
+
+    if (cfg->stop_bits == STOP_BITS_1)
+        USART_InitStructure.USART_StopBits = USART_StopBits_1;
+    else if (cfg->stop_bits == STOP_BITS_2)
+        USART_InitStructure.USART_StopBits = USART_StopBits_2;
+
+    USART_InitStructure.USART_Parity = USART_Parity_No;
+    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
+    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
+    USART_Init(uart->uart_device, &USART_InitStructure);
+
+    /* Enable USART */
+    USART_Cmd(uart->uart_device, ENABLE);
+
+    return RT_EOK;
+}
+
+static rt_err_t stm32_control(struct rt_serial_device *serial, int cmd, void *arg)
+{
+    struct stm32_uart *uart;
+
+    RT_ASSERT(serial != RT_NULL);
+    uart = (struct stm32_uart *)serial->parent.user_data;
+
+    switch (cmd)
+    {
+    case RT_DEVICE_CTRL_CLR_INT:
+        /* disable rx irq */
+        UART_DISABLE_IRQ(uart->irq);
+        /* disable interrupt */
+        USART_ITConfig(uart->uart_device, USART_IT_RXNE, DISABLE);
+        break;
+    case RT_DEVICE_CTRL_SET_INT:
+        /* enable rx irq */
+        UART_ENABLE_IRQ(uart->irq);
+        /* enable interrupt */
+        USART_ITConfig(uart->uart_device, USART_IT_RXNE, ENABLE);
+        break;
+    }
+
+    return RT_EOK;
+}
+
+static int stm32_putc(struct rt_serial_device *serial, char c)
+{
+    struct stm32_uart *uart;
+
+    RT_ASSERT(serial != RT_NULL);
+    uart = (struct stm32_uart *)serial->parent.user_data;
+
+    while (!(uart->uart_device->SR & USART_FLAG_TXE));
+    uart->uart_device->DR = c;
+
+    return 1;
+}
+
+static int stm32_getc(struct rt_serial_device *serial)
+{
+    int ch;
+    struct stm32_uart *uart;
+
+    RT_ASSERT(serial != RT_NULL);
+    uart = (struct stm32_uart *)serial->parent.user_data;
+
+    ch = -1;
+    if (uart->uart_device->SR & USART_FLAG_RXNE)
+    {
+        ch = uart->uart_device->DR & 0xff;
+    }
+
+    return ch;
+}
+
+static const struct rt_uart_ops stm32_uart_ops =
+{
+    stm32_configure,
+    stm32_control,
+    stm32_putc,
+    stm32_getc,
+};
+
+#if defined(RT_USING_UART1)
+/* UART1 device driver structure */
+struct stm32_uart uart1 =
+{
+    USART1,
+    USART1_IRQn,
+};
+struct rt_serial_device serial1;
+
+void USART1_IRQHandler(void)
+{
+    struct stm32_uart *uart;
+
+    uart = &uart1;
+
+    /* enter interrupt */
+    rt_interrupt_enter();
+    if (USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
+    {
+        rt_hw_serial_isr(&serial1, RT_SERIAL_EVENT_RX_IND);
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
+    }
+    if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
+    {
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
+    }
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /* RT_USING_UART1 */
+
+#if defined(RT_USING_UART2)
+/* UART2 device driver structure */
+struct stm32_uart uart2 =
+{
+    USART2,
+    USART2_IRQn,
+};
+struct rt_serial_device serial2;
+
+void USART2_IRQHandler(void)
+{
+    struct stm32_uart *uart;
+
+    uart = &uart2;
+
+    /* enter interrupt */
+    rt_interrupt_enter();
+    if (USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
+    {
+        rt_hw_serial_isr(&serial2, RT_SERIAL_EVENT_RX_IND);
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
+    }
+    if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
+    {
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
+    }
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /* RT_USING_UART2 */
+
+#if defined(RT_USING_UART3)
+/* UART3 device driver structure */
+struct stm32_uart uart3 =
+{
+    USART3,
+    USART3_IRQn,
+};
+struct rt_serial_device serial3;
+
+void USART3_IRQHandler(void)
+{
+    struct stm32_uart *uart;
+
+    uart = &uart3;
+
+    /* enter interrupt */
+    rt_interrupt_enter();
+    if (USART_GetITStatus(uart->uart_device, USART_IT_RXNE) != RESET)
+    {
+        rt_hw_serial_isr(&serial3, RT_SERIAL_EVENT_RX_IND);
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_RXNE);
+    }
+    if (USART_GetITStatus(uart->uart_device, USART_IT_TC) != RESET)
+    {
+        /* clear interrupt */
+        USART_ClearITPendingBit(uart->uart_device, USART_IT_TC);
+    }
+
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /* RT_USING_UART3 */
 
 static void RCC_Configuration(void)
 {
 #ifdef RT_USING_UART1
-    /* Enable USART2 GPIO clocks */
+    /* Enable UART1 GPIO clocks */
     RCC_AHB1PeriphClockCmd(UART1_GPIO_RCC, ENABLE);
-    /* Enable USART2 clock */
+    /* Enable UART1 clock */
     RCC_APB2PeriphClockCmd(RCC_APBPeriph_UART1, ENABLE);
-#endif
+#endif /* RT_USING_UART1 */
 
 #ifdef RT_USING_UART2
-    /* Enable USART2 GPIO clocks */
+    /* Enable UART2 GPIO clocks */
     RCC_AHB1PeriphClockCmd(UART2_GPIO_RCC, ENABLE);
-    /* Enable USART2 clock */
+    /* Enable UART2 clock */
     RCC_APB1PeriphClockCmd(RCC_APBPeriph_UART2, ENABLE);
-#endif
+#endif /* RT_USING_UART1 */
 
 #ifdef RT_USING_UART3
-    /* Enable USART3 GPIO clocks */
+    /* Enable UART3 GPIO clocks */
     RCC_AHB1PeriphClockCmd(UART3_GPIO_RCC, ENABLE);
-    /* Enable USART3 clock */
+    /* Enable UART3 clock */
     RCC_APB1PeriphClockCmd(RCC_APBPeriph_UART3, ENABLE);
-
-    /* DMA clock enable */
-    RCC_APB1PeriphClockCmd(RCC_AHB1Periph_DMA1, ENABLE);
-#endif
-
-#ifdef RT_USING_UART6
-    /* Enable USART6 GPIO clocks */
-    RCC_AHB1PeriphClockCmd(UART6_GPIO_RCC, ENABLE);
-    /* Enable USART6 clock */
-    RCC_APB2PeriphClockCmd(RCC_APBPeriph_UART6, ENABLE);
-#endif
+#endif /* RT_USING_UART3 */
 }
 
 static void GPIO_Configuration(void)
@@ -173,17 +300,17 @@ static void GPIO_Configuration(void)
     /* Connect alternate function */
     GPIO_PinAFConfig(UART1_GPIO, UART1_TX_PIN_SOURCE, GPIO_AF_USART1);
     GPIO_PinAFConfig(UART1_GPIO, UART1_RX_PIN_SOURCE, GPIO_AF_USART1);
-#endif
+#endif /* RT_USING_UART1 */
 
 #ifdef RT_USING_UART2
     /* Configure USART2 Rx/tx PIN */
-    GPIO_InitStructure.GPIO_Pin = UART2_GPIO_TX | UART2_GPIO_RX;
+    GPIO_InitStructure.GPIO_Pin = UART2_GPIO_RX | UART2_GPIO_TX;
     GPIO_Init(UART2_GPIO, &GPIO_InitStructure);
 
     /* Connect alternate function */
     GPIO_PinAFConfig(UART2_GPIO, UART2_TX_PIN_SOURCE, GPIO_AF_USART2);
     GPIO_PinAFConfig(UART2_GPIO, UART2_RX_PIN_SOURCE, GPIO_AF_USART2);
-#endif
+#endif /* RT_USING_UART2 */
 
 #ifdef RT_USING_UART3
     /* Configure USART3 Rx/tx PIN */
@@ -193,217 +320,74 @@ static void GPIO_Configuration(void)
     /* Connect alternate function */
     GPIO_PinAFConfig(UART3_GPIO, UART3_TX_PIN_SOURCE, GPIO_AF_USART3);
     GPIO_PinAFConfig(UART3_GPIO, UART3_RX_PIN_SOURCE, GPIO_AF_USART3);
-#endif
-
-#ifdef RT_USING_UART6
-    /* Configure USART6 Rx/tx PIN */
-    GPIO_InitStructure.GPIO_Pin = UART6_GPIO_TX | UART6_GPIO_RX;
-    GPIO_Init(UART6_GPIO, &GPIO_InitStructure);
-
-    /* Connect alternate function */
-    GPIO_PinAFConfig(UART6_GPIO, UART6_TX_PIN_SOURCE, GPIO_AF_USART6);
-    GPIO_PinAFConfig(UART6_GPIO, UART6_RX_PIN_SOURCE, GPIO_AF_USART6);
-#endif
+#endif /* RT_USING_UART3 */
 }
 
-static void NVIC_Configuration(void)
+static void NVIC_Configuration(struct stm32_uart *uart)
 {
     NVIC_InitTypeDef NVIC_InitStructure;
 
-#ifdef RT_USING_UART1
     /* Enable the USART1 Interrupt */
-    NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
+    NVIC_InitStructure.NVIC_IRQChannel = uart->irq;
+    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 3;
     NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
     NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
     NVIC_Init(&NVIC_InitStructure);
-#endif
-
-#ifdef RT_USING_UART2
-    /* Enable the USART2 Interrupt */
-    NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;
-    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
-    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
-    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-    NVIC_Init(&NVIC_InitStructure);
-#endif
-
-#ifdef RT_USING_UART3
-    /* Enable the USART3 Interrupt */
-    NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;
-    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
-    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-    NVIC_Init(&NVIC_InitStructure);
-
-    /* Enable the DMA1 Channel2 Interrupt */
-    NVIC_InitStructure.NVIC_IRQChannel = DMA1_Stream1_IRQn;
-    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
-    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-    NVIC_Init(&NVIC_InitStructure);
-#endif
-
-#ifdef RT_USING_UART6
-    /* Enable the USART6 Interrupt */
-    NVIC_InitStructure.NVIC_IRQChannel = USART6_IRQn;
-    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
-    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
-    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
-    NVIC_Init(&NVIC_InitStructure);
-#endif
-}
-
-static void DMA_Configuration(void)
-{
-#if defined (RT_USING_UART3)
-    DMA_InitTypeDef DMA_InitStructure;
-
-//  /* Configure DMA Stream */
-//  DMA_InitStructure.DMA_Channel = DMA_CHANNEL;
-//  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)SRC_Const_Buffer;
-//  DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)DST_Buffer;
-//  DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToMemory;
-//  DMA_InitStructure.DMA_BufferSize = (uint32_t)BUFFER_SIZE;
-//  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Enable;
-//  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
-//  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
-//  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
-//  DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
-//  DMA_InitStructure.DMA_Priority = DMA_Priority_High;
-//  DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
-//  DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
-//  DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
-//  DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
-//  DMA_Init(DMA_STREAM, &DMA_InitStructure);
-
-  /* Configure DMA Stream */
-  DMA_InitStructure.DMA_Channel = DMA_Channel_0;
-  DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)(&USART3->DR);
-  DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)0;
-  DMA_InitStructure.DMA_DIR = DMA_DIR_MemoryToPeripheral;
-  DMA_InitStructure.DMA_BufferSize = (uint32_t)0;
-  DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
-  DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
-  DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
-  DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
-  DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
-  DMA_InitStructure.DMA_Priority = DMA_Priority_High;
-  DMA_InitStructure.DMA_FIFOMode = DMA_FIFOMode_Disable;
-  DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_Full;
-  DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;
-  DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;
-
-  DMA_DeInit(UART3_TX_DMA);
-  DMA_Init(UART3_TX_DMA, &DMA_InitStructure);
-
-//    /* fill init structure */
-//    DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
-//    DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
-//    DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
-//    DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
-//    DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
-//    DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
-//    DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
-//
-//    /* DMA1 Channel5 (triggered by USART3 Tx event) Config */
-//    DMA_DeInit(UART3_TX_DMA);
-//    DMA_InitStructure.DMA_PeripheralBaseAddr = USART3_DR_Base;
-//    DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
-//    DMA_InitStructure.DMA_MemoryBaseAddr = (u32)0;
-//    DMA_InitStructure.DMA_BufferSize = 0;
-//    DMA_Init(UART3_TX_DMA, &DMA_InitStructure);
-    DMA_ITConfig(UART3_TX_DMA, DMA_IT_TC | DMA_IT_TE, ENABLE);
-//    DMA_ClearFlag(DMA1_FLAG_TC5);
-#endif
 }
 
-volatile USART_TypeDef * uart2_debug = USART2;
-/*
- * Init all related hardware in here
- * rt_hw_serial_init() will register all supported USART device
- */
-void rt_hw_usart_init()
+int stm32_hw_usart_init(void)
 {
-    USART_InitTypeDef USART_InitStructure;
+    struct stm32_uart *uart;
+    struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
 
     RCC_Configuration();
-
     GPIO_Configuration();
 
-    NVIC_Configuration();
-
-    DMA_Configuration();
-
-    /* uart init */
 #ifdef RT_USING_UART1
-    USART_InitStructure.USART_BaudRate = 115200;
-    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
-    USART_InitStructure.USART_StopBits = USART_StopBits_1;
-    USART_InitStructure.USART_Parity = USART_Parity_No;
-    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
-    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
-    USART_Init(USART1, &USART_InitStructure);
+    uart = &uart1;
+
+    serial1.ops    = &stm32_uart_ops;
+    serial1.config = config;
 
-    /* register uart1 */
-    rt_hw_serial_register(&uart1_device, "uart1",
-        RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
-        &uart1);
+    NVIC_Configuration(&uart1);
 
-    /* enable interrupt */
-    USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
-#endif
+    /* register UART1 device */
+    rt_hw_serial_register(&serial1,
+                          "uart1",
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
+                          uart);
+#endif /* RT_USING_UART1 */
 
 #ifdef RT_USING_UART2
-    USART_InitStructure.USART_BaudRate = 115200;
-    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
-    USART_InitStructure.USART_StopBits = USART_StopBits_1;
-    USART_InitStructure.USART_Parity = USART_Parity_No;
-    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
-    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
-    USART_Init(USART2, &USART_InitStructure);
+    uart = &uart2;
 
-    /* register uart2 */
-    rt_hw_serial_register(&uart2_device, "uart2",
-        RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
-        &uart2);
+    serial2.ops    = &stm32_uart_ops;
+    serial2.config = config;
 
-    /* Enable USART2 DMA Rx request */
-    USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
-#endif
+    NVIC_Configuration(&uart2);
 
-#ifdef RT_USING_UART3
-    USART_InitStructure.USART_BaudRate = 115200;
-    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
-    USART_InitStructure.USART_StopBits = USART_StopBits_1;
-    USART_InitStructure.USART_Parity = USART_Parity_No;
-    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
-    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
-    USART_Init(USART3, &USART_InitStructure);
-
-//    uart3_dma_tx.dma_channel= UART3_TX_DMA;
+    /* register UART1 device */
+    rt_hw_serial_register(&serial2,
+                          "uart2",
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
+                          uart);
+#endif /* RT_USING_UART2 */
 
-    /* register uart3 */
-    rt_hw_serial_register(&uart3_device, "uart3",
-        RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX | RT_DEVICE_FLAG_DMA_TX,
-        &uart3);
+#ifdef RT_USING_UART3
+    uart = &uart3;
 
-    /* Enable USART3 DMA Tx request */
-    USART_DMACmd(USART3, USART_DMAReq_Tx , ENABLE);
+    serial3.ops    = &stm32_uart_ops;
+    serial3.config = config;
 
-    /* enable interrupt */
-    USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);
-#endif
+    NVIC_Configuration(&uart3);
 
-#ifdef RT_USING_UART6
-    USART_InitStructure.USART_BaudRate = 9600;
-    USART_InitStructure.USART_WordLength = USART_WordLength_8b;
-    USART_InitStructure.USART_StopBits = USART_StopBits_1;
-    USART_InitStructure.USART_Parity = USART_Parity_No;
-    USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
-    USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
-    USART_Init(USART6, &USART_InitStructure);
+    /* register UART3 device */
+    rt_hw_serial_register(&serial3,
+                          "uart3",
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
+                          uart);
+#endif /* RT_USING_UART3 */
 
-    /* register uart6 */
-    rt_hw_serial_register(&uart6_device, "uart6",
-        RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
-        &uart6);
-#endif
+    return 0;
 }
+INIT_BOARD_EXPORT(stm32_hw_usart_init);
diff --git a/bsp/stm32f40x/drivers/usart.h b/bsp/stm32f40x/drivers/usart.h
index 48925df880..3faf85fcde 100644
--- a/bsp/stm32f40x/drivers/usart.h
+++ b/bsp/stm32f40x/drivers/usart.h
@@ -18,6 +18,9 @@
 #include <rthw.h>
 #include <rtthread.h>
 
-void rt_hw_usart_init(void);
+#define UART_ENABLE_IRQ(n)            NVIC_EnableIRQ((n))
+#define UART_DISABLE_IRQ(n)           NVIC_DisableIRQ((n))
+
+int stm32_hw_usart_init(void);
 
 #endif
diff --git a/bsp/stm32f40x/project.uvopt b/bsp/stm32f40x/project.uvopt
deleted file mode 100644
index 9661193e93..0000000000
--- a/bsp/stm32f40x/project.uvopt
+++ /dev/null
@@ -1,1206 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no" ?>
-<ProjectOpt xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="project_opt.xsd">
-
-  <SchemaVersion>1.0</SchemaVersion>
-
-  <Header>### uVision Project, (C) Keil Software</Header>
-
-  <Extensions>
-    <cExt>*.c</cExt>
-    <aExt>*.s*; *.src; *.a*</aExt>
-    <oExt>*.obj</oExt>
-    <lExt>*.lib</lExt>
-    <tExt>*.txt; *.h; *.inc</tExt>
-    <pExt>*.plm</pExt>
-    <CppX>*.cpp</CppX>
-  </Extensions>
-
-  <DaveTm>
-    <dwLowDateTime>0</dwLowDateTime>
-    <dwHighDateTime>0</dwHighDateTime>
-  </DaveTm>
-
-  <Target>
-    <TargetName>rt-thread</TargetName>
-    <ToolsetNumber>0x4</ToolsetNumber>
-    <ToolsetName>ARM-ADS</ToolsetName>
-    <TargetOption>
-      <CLKADS>25000000</CLKADS>
-      <OPTTT>
-        <gFlags>1</gFlags>
-        <BeepAtEnd>1</BeepAtEnd>
-        <RunSim>1</RunSim>
-        <RunTarget>0</RunTarget>
-      </OPTTT>
-      <OPTHX>
-        <HexSelection>1</HexSelection>
-        <FlashByte>65535</FlashByte>
-        <HexRangeLowAddress>0</HexRangeLowAddress>
-        <HexRangeHighAddress>0</HexRangeHighAddress>
-        <HexOffset>0</HexOffset>
-      </OPTHX>
-      <OPTLEX>
-        <PageWidth>79</PageWidth>
-        <PageLength>66</PageLength>
-        <TabStop>8</TabStop>
-        <ListingPath>.\build\</ListingPath>
-      </OPTLEX>
-      <ListingPage>
-        <CreateCListing>1</CreateCListing>
-        <CreateAListing>1</CreateAListing>
-        <CreateLListing>1</CreateLListing>
-        <CreateIListing>0</CreateIListing>
-        <AsmCond>1</AsmCond>
-        <AsmSymb>1</AsmSymb>
-        <AsmXref>0</AsmXref>
-        <CCond>1</CCond>
-        <CCode>0</CCode>
-        <CListInc>0</CListInc>
-        <CSymb>0</CSymb>
-        <LinkerCodeListing>0</LinkerCodeListing>
-      </ListingPage>
-      <OPTXL>
-        <LMap>1</LMap>
-        <LComments>1</LComments>
-        <LGenerateSymbols>1</LGenerateSymbols>
-        <LLibSym>1</LLibSym>
-        <LLines>1</LLines>
-        <LLocSym>1</LLocSym>
-        <LPubSym>1</LPubSym>
-        <LXref>0</LXref>
-        <LExpSel>0</LExpSel>
-      </OPTXL>
-      <OPTFL>
-        <tvExp>1</tvExp>
-        <tvExpOptDlg>0</tvExpOptDlg>
-        <IsCurrentTarget>1</IsCurrentTarget>
-      </OPTFL>
-      <CpuCode>0</CpuCode>
-      <DllOpt>
-        <SimDllName>SARMCM3.DLL</SimDllName>
-        <SimDllArguments>-MPU</SimDllArguments>
-        <SimDlgDllName>DCM.DLL</SimDlgDllName>
-        <SimDlgDllArguments>-pCM4</SimDlgDllArguments>
-        <TargetDllName>SARMCM3.DLL</TargetDllName>
-        <TargetDllArguments>-MPU</TargetDllArguments>
-        <TargetDlgDllName>TCM.DLL</TargetDlgDllName>
-        <TargetDlgDllArguments>-pCM4</TargetDlgDllArguments>
-      </DllOpt>
-      <DebugOpt>
-        <uSim>0</uSim>
-        <uTrg>1</uTrg>
-        <sLdApp>1</sLdApp>
-        <sGomain>1</sGomain>
-        <sRbreak>1</sRbreak>
-        <sRwatch>1</sRwatch>
-        <sRmem>1</sRmem>
-        <sRfunc>1</sRfunc>
-        <sRbox>1</sRbox>
-        <tLdApp>1</tLdApp>
-        <tGomain>1</tGomain>
-        <tRbreak>1</tRbreak>
-        <tRwatch>1</tRwatch>
-        <tRmem>1</tRmem>
-        <tRfunc>0</tRfunc>
-        <tRbox>1</tRbox>
-        <sRunDeb>0</sRunDeb>
-        <sLrtime>0</sLrtime>
-        <nTsel>8</nTsel>
-        <sDll></sDll>
-        <sDllPa></sDllPa>
-        <sDlgDll></sDlgDll>
-        <sDlgPa></sDlgPa>
-        <sIfile></sIfile>
-        <tDll></tDll>
-        <tDllPa></tDllPa>
-        <tDlgDll></tDlgDll>
-        <tDlgPa></tDlgPa>
-        <tIfile></tIfile>
-        <pMon>STLink\ST-LINKIII-KEIL.dll</pMon>
-      </DebugOpt>
-      <TargetDriverDllRegistry>
-        <SetRegEntry>
-          <Number>0</Number>
-          <Key>DLGTARM</Key>
-          <Name>(1010=-1,-1,-1,-1,0)(1007=-1,-1,-1,-1,0)(1008=-1,-1,-1,-1,0)(1009=-1,-1,-1,-1,0)(1012=-1,-1,-1,-1,0)</Name>
-        </SetRegEntry>
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diff --git a/bsp/stm32f40x/project.uvproj b/bsp/stm32f40x/project.uvproj
index a2734d98af..da6c71a151 100644
--- a/bsp/stm32f40x/project.uvproj
+++ b/bsp/stm32f40x/project.uvproj
@@ -343,7 +343,7 @@
               <MiscControls />
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               <Undefine />
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+              <IncludePath>applications;.;Libraries/STM32F4xx_StdPeriph_Driver/inc;Libraries/CMSIS/ST/STM32F4xx/Include;Libraries/CMSIS/Include;drivers;../../include;../../libcpu/arm/cortex-m4;../../libcpu/arm/common;../../components/finsh;../../components/drivers/include;../../components/drivers/include;../../components/drivers/include</IncludePath>
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               <FileType>1</FileType>
-              <FilePath>applications\application.c</FilePath>
+              <FilePath>applications/application.c</FilePath>
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               <FileName>startup.c</FileName>
               <FileType>1</FileType>
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-              <FileType>1</FileType>
-              <FilePath>drivers\board.c</FilePath>
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-              <FileType>1</FileType>
-              <FilePath>drivers\serial.c</FilePath>
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-              <FilePath>drivers\stm32f4xx_it.c</FilePath>
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-          <Files>
-            <File>
-              <FileName>usart.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>drivers\usart.c</FilePath>
+              <FilePath>applications/startup.c</FilePath>
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-              <FilePath>Libraries\CMSIS\ST\STM32F4xx\Source\Templates\system_stm32f4xx.c</FilePath>
+              <FilePath>Libraries/CMSIS/ST/STM32F4xx/Source/Templates/system_stm32f4xx.c</FilePath>
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               <FileName>misc.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\misc.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/misc.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_adc.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_adc.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_adc.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_can.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_can.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_can.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_crc.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_crc.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_crc.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_cryp.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_cryp.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_cryp.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_cryp_aes.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_cryp_aes.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_cryp_aes.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_cryp_des.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_cryp_des.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_cryp_des.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_cryp_tdes.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_cryp_tdes.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_cryp_tdes.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_dac.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_dac.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_dac.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_dbgmcu.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_dbgmcu.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_dbgmcu.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_dcmi.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_dcmi.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_dcmi.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_dma.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_dma.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_dma.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_exti.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_exti.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_exti.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_flash.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_flash.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_flash.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_fsmc.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_fsmc.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_fsmc.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_gpio.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_gpio.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_gpio.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_hash.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_hash.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_hash.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_hash_md5.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_hash_md5.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_hash_md5.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_hash_sha1.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_hash_sha1.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_hash_sha1.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_i2c.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_i2c.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_i2c.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_iwdg.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_iwdg.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_iwdg.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_pwr.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_pwr.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_pwr.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_rcc.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_rcc.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_rcc.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_rng.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_rng.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_rng.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_rtc.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_rtc.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_rtc.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_sdio.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_sdio.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_sdio.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_spi.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_spi.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_spi.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_syscfg.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_syscfg.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_syscfg.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_tim.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_tim.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_tim.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_usart.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_usart.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_usart.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>stm32f4xx_wwdg.c</FileName>
               <FileType>1</FileType>
-              <FilePath>Libraries\STM32F4xx_StdPeriph_Driver\src\stm32f4xx_wwdg.c</FilePath>
+              <FilePath>Libraries/STM32F4xx_StdPeriph_Driver/src/stm32f4xx_wwdg.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>startup_stm32f4xx.s</FileName>
               <FileType>2</FileType>
-              <FilePath>Libraries\CMSIS\ST\STM32F4xx\Source\Templates\arm\startup_stm32f4xx.s</FilePath>
+              <FilePath>Libraries/CMSIS/ST/STM32F4xx/Source/Templates/arm/startup_stm32f4xx.s</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
+          <GroupName>Drivers</GroupName>
+          <Files>
+            <File>
+              <FileName>board.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers/board.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>gpio.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers/gpio.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>stm32f4xx_it.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers/stm32f4xx_it.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>usart.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers/usart.c</FilePath>
             </File>
           </Files>
         </Group>
@@ -668,84 +668,84 @@
             <File>
               <FileName>clock.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\clock.c</FilePath>
+              <FilePath>../../src/clock.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>device.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\device.c</FilePath>
+              <FilePath>../../src/device.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>idle.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\idle.c</FilePath>
+              <FilePath>../../src/idle.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>ipc.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\ipc.c</FilePath>
+              <FilePath>../../src/ipc.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>irq.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\irq.c</FilePath>
+              <FilePath>../../src/irq.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>kservice.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\kservice.c</FilePath>
+              <FilePath>../../src/kservice.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>mem.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\mem.c</FilePath>
+              <FilePath>../../src/mem.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>mempool.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\mempool.c</FilePath>
+              <FilePath>../../src/mempool.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>object.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\object.c</FilePath>
+              <FilePath>../../src/object.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>scheduler.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\scheduler.c</FilePath>
+              <FilePath>../../src/scheduler.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>thread.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\thread.c</FilePath>
+              <FilePath>../../src/thread.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>timer.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\src\timer.c</FilePath>
+              <FilePath>../../src/timer.c</FilePath>
             </File>
           </Files>
         </Group>
@@ -755,35 +755,35 @@
             <File>
               <FileName>cpuport.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\libcpu\arm\cortex-m4\cpuport.c</FilePath>
+              <FilePath>../../libcpu/arm/cortex-m4/cpuport.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>context_rvds.S</FileName>
               <FileType>2</FileType>
-              <FilePath>..\..\libcpu\arm\cortex-m4\context_rvds.S</FilePath>
+              <FilePath>../../libcpu/arm/cortex-m4/context_rvds.S</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>backtrace.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\libcpu\arm\common\backtrace.c</FilePath>
+              <FilePath>../../libcpu/arm/common/backtrace.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>div0.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\libcpu\arm\common\div0.c</FilePath>
+              <FilePath>../../libcpu/arm/common/div0.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>showmem.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\libcpu\arm\common\showmem.c</FilePath>
+              <FilePath>../../libcpu/arm/common/showmem.c</FilePath>
             </File>
           </Files>
         </Group>
@@ -791,93 +791,152 @@
           <GroupName>finsh</GroupName>
           <Files>
             <File>
+              <FileName>shell.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../../components/finsh/shell.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>symbol.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../../components/finsh/symbol.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
               <FileName>cmd.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\cmd.c</FilePath>
+              <FilePath>../../components/finsh/cmd.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>finsh_compiler.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_compiler.c</FilePath>
+              <FilePath>../../components/finsh/finsh_compiler.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>finsh_error.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_error.c</FilePath>
+              <FilePath>../../components/finsh/finsh_error.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>finsh_heap.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_heap.c</FilePath>
+              <FilePath>../../components/finsh/finsh_heap.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>finsh_init.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_init.c</FilePath>
+              <FilePath>../../components/finsh/finsh_init.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>finsh_node.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_node.c</FilePath>
+              <FilePath>../../components/finsh/finsh_node.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>finsh_ops.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_ops.c</FilePath>
+              <FilePath>../../components/finsh/finsh_ops.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>finsh_parser.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_parser.c</FilePath>
+              <FilePath>../../components/finsh/finsh_parser.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>finsh_var.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../../components/finsh/finsh_var.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>finsh_vm.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../../components/finsh/finsh_vm.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
               <FileName>finsh_token.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_token.c</FilePath>
+              <FilePath>../../components/finsh/finsh_token.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
+          <GroupName>DeviceDrivers</GroupName>
+          <Files>
+            <File>
+              <FileName>serial.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../../components/drivers/serial/serial.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
-              <FileName>finsh_var.c</FileName>
+              <FileName>pin.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_var.c</FilePath>
+              <FilePath>../../components/drivers/misc/pin.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
-              <FileName>finsh_vm.c</FileName>
+              <FileName>completion.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\finsh_vm.c</FilePath>
+              <FilePath>../../components/drivers/src/completion.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
-              <FileName>shell.c</FileName>
+              <FileName>dataqueue.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\shell.c</FilePath>
+              <FilePath>../../components/drivers/src/dataqueue.c</FilePath>
             </File>
           </Files>
           <Files>
             <File>
-              <FileName>symbol.c</FileName>
+              <FileName>pipe.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../../components/drivers/src/pipe.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>portal.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../../components/drivers/src/portal.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>ringbuffer.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../../components/drivers/src/ringbuffer.c</FilePath>
+            </File>
+          </Files>
+          <Files>
+            <File>
+              <FileName>workqueue.c</FileName>
               <FileType>1</FileType>
-              <FilePath>..\..\components\finsh\symbol.c</FilePath>
+              <FilePath>../../components/drivers/src/workqueue.c</FilePath>
             </File>
           </Files>
         </Group>
diff --git a/bsp/stm32f40x/rtconfig.h b/bsp/stm32f40x/rtconfig.h
index 9c347969b2..88dfd0b616 100644
--- a/bsp/stm32f40x/rtconfig.h
+++ b/bsp/stm32f40x/rtconfig.h
@@ -2,14 +2,11 @@
 #ifndef __RTTHREAD_CFG_H__
 #define __RTTHREAD_CFG_H__
 
-/* RT_GDB_STUB */
-//#define RT_USING_GDB
-
 /* RT_NAME_MAX*/
 #define RT_NAME_MAX	   8
 
 /* RT_ALIGN_SIZE*/
-#define RT_ALIGN_SIZE	8
+#define RT_ALIGN_SIZE	4
 
 /* PRIORITY_MAX */
 #define RT_THREAD_PRIORITY_MAX	32
@@ -20,7 +17,6 @@
 /* SECTION: RT_DEBUG */
 /* Thread Debug */
 #define RT_DEBUG
-
 #define RT_USING_OVERFLOW_CHECK
 
 /* Using Hook */
@@ -62,6 +58,16 @@
 /* SECTION: Device System */
 /* Using Device System */
 #define RT_USING_DEVICE
+#define RT_USING_DEVICE_IPC
+/* Using serial framework */
+#define RT_USING_SERIAL
+
+#define RT_USING_UART1
+#define RT_USING_UART2
+#define RT_USING_UART3
+
+/* Using GPIO pin framework */
+#define RT_USING_PIN
 
 /* SECTION: Console options */
 #define RT_USING_CONSOLE
@@ -75,7 +81,14 @@
 #define FINSH_USING_DESCRIPTION
 
 /* SECTION: device filesystem */
+/* Using Device file system */
 /* #define RT_USING_DFS */
+/* the max number of mounted filesystem */
+#define DFS_FILESYSTEMS_MAX			2
+/* the max number of opened files 		*/
+#define DFS_FD_MAX					4
+
+/* Using ELM FATFS */
 //#define RT_USING_DFS_ELMFAT
 #define RT_DFS_ELM_WORD_ACCESS
 /* Reentrancy (thread safe) of the FatFs module.  */
@@ -87,12 +100,8 @@
 /* Maximum sector size to be handled. */
 #define RT_DFS_ELM_MAX_SECTOR_SIZE  512
 
-#define RT_USING_DFS_ROMFS
-
-/* the max number of mounted filesystem */
-#define DFS_FILESYSTEMS_MAX			2
-/* the max number of opened files 		*/
-#define DFS_FD_MAX					4
+/* Using ROM file system */
+// #define RT_USING_DFS_ROMFS
 
 /* SECTION: lwip, a lighwight TCP/IP protocol stack */
 /* #define RT_USING_LWIP */
@@ -151,4 +160,7 @@
 #define CHECKSUM_GEN_IP                 0
 #define CHECKSUM_GEN_UDP                0
 
+/* RT_GDB_STUB */
+//#define RT_USING_GDB
+
 #endif
diff --git a/bsp/stm32f40x/rtconfig.py b/bsp/stm32f40x/rtconfig.py
index d22162626d..d1f081370e 100644
--- a/bsp/stm32f40x/rtconfig.py
+++ b/bsp/stm32f40x/rtconfig.py
@@ -6,16 +6,16 @@ CPU='cortex-m4'
 CROSS_TOOL='keil'
 
 if os.getenv('RTT_CC'):
-	CROSS_TOOL = os.getenv('RTT_CC')
+    CROSS_TOOL = os.getenv('RTT_CC')
 
 # cross_tool provides the cross compiler
 # EXEC_PATH is the compiler execute path, for example, CodeSourcery, Keil MDK, IAR
 if  CROSS_TOOL == 'gcc':
-	PLATFORM 	= 'gcc'
-	EXEC_PATH 	= r'E:/Program Files/CodeSourcery/Sourcery G++ Lite/bin'
+    PLATFORM 	= 'gcc'
+    EXEC_PATH 	= r'E:/Program Files/CodeSourcery/Sourcery G++ Lite/bin'
 elif CROSS_TOOL == 'keil':
-	PLATFORM 	= 'armcc'
-	EXEC_PATH 	= r'C:/Keil'
+    PLATFORM 	= 'armcc'
+    EXEC_PATH 	= r'C:/Keil'
 elif CROSS_TOOL == 'iar':
     print '================ERROR============================'
     print 'Not support iar yet!'
diff --git a/components/drivers/include/drivers/pin.h b/components/drivers/include/drivers/pin.h
new file mode 100644
index 0000000000..704114cf99
--- /dev/null
+++ b/components/drivers/include/drivers/pin.h
@@ -0,0 +1,79 @@
+/*
+ * File      : pin.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2015, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-01-20     Bernard      the first version
+ */
+
+#ifndef PIN_H__
+#define PIN_H__
+
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* pin device and operations for RT-Thread */
+struct rt_device_pin
+{
+    struct rt_device parent;
+    const struct rt_pin_ops *ops;
+};
+
+#define PIN_LOW                 0x00
+#define PIN_HIGH                0x01
+
+#define PIN_MODE_OUTPUT         0x00
+#define PIN_MODE_INPUT          0x01
+#define PIN_MODE_INPUT_PULLUP   0x02
+
+struct rt_device_pin_mode
+{
+    rt_uint16_t pin;
+    rt_uint16_t mode;
+};
+struct rt_device_pin_status
+{
+    rt_uint16_t pin;
+    rt_uint16_t status;
+};
+
+struct rt_pin_ops
+{
+    void (*pin_mode)(struct rt_device *device, rt_base_t pin, rt_base_t mode);
+    void (*pin_write)(struct rt_device *device, rt_base_t pin, rt_base_t value);
+    int (*pin_read)(struct rt_device *device, rt_base_t pin);
+
+    /* TODO: add GPIO interrupt */
+};
+
+int rt_device_pin_register(const char *name, const struct rt_pin_ops *ops, void *user_data);
+
+void rt_pin_mode(rt_base_t pin, rt_base_t mode);
+void rt_pin_write(rt_base_t pin, rt_base_t value);
+int  rt_pin_read(rt_base_t pin);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/components/drivers/include/rtdevice.h b/components/drivers/include/rtdevice.h
index dc9761032e..bb01da2d12 100644
--- a/components/drivers/include/rtdevice.h
+++ b/components/drivers/include/rtdevice.h
@@ -358,5 +358,9 @@ rt_inline void rt_work_init(struct rt_work* work, void (*work_func)(struct rt_wo
 #include "drivers/watchdog.h"
 #endif
 
+#ifdef RT_USING_PIN
+#include "drivers/pin.h"
+#endif
+
 #endif /* __RT_DEVICE_H__ */
 
diff --git a/components/drivers/misc/SConscript b/components/drivers/misc/SConscript
new file mode 100644
index 0000000000..7f269d4ee9
--- /dev/null
+++ b/components/drivers/misc/SConscript
@@ -0,0 +1,14 @@
+from building import *
+
+cwd = GetCurrentDir()
+src = [] 
+CPPPATH = [cwd + '/../include']
+group = []
+
+if GetDepend(['RT_USING_PIN']):
+    src = src + ['pin.c']
+
+if len(src):
+    group = DefineGroup('DeviceDrivers', src, depend = [''], CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/components/drivers/misc/pin.c b/components/drivers/misc/pin.c
new file mode 100644
index 0000000000..d83c3d2f03
--- /dev/null
+++ b/components/drivers/misc/pin.c
@@ -0,0 +1,118 @@
+/*
+ * File      : pin.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2015, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2015-01-20     Bernard      the first version
+ */
+
+#include <drivers/pin.h>
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+#endif
+
+static struct rt_device_pin _hw_pin;
+static rt_size_t _pin_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t size)
+{
+    struct rt_device_pin_status *status;
+    struct rt_device_pin *pin = (struct rt_device_pin *)dev;
+
+    /* check parameters */
+    RT_ASSERT(pin != RT_NULL);
+
+    status = (struct rt_device_pin_status *) buffer;
+    if (status == RT_NULL || size != sizeof(*status)) return 0;
+
+    status->status = pin->ops->pin_read(dev, status->pin);
+    return size;
+}
+
+static rt_size_t _pin_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t size)
+{
+    struct rt_device_pin_status *status;
+    struct rt_device_pin *pin = (struct rt_device_pin *)dev;
+
+    /* check parameters */
+    RT_ASSERT(pin != RT_NULL);
+
+    status = (struct rt_device_pin_status *) buffer;
+    if (status == RT_NULL || size != sizeof(*status)) return 0;
+
+    pin->ops->pin_write(dev, (rt_base_t)status->pin, (rt_base_t)status->status);
+
+    return size;
+}
+
+static rt_err_t  _pin_control(rt_device_t dev, rt_uint8_t cmd, void *args)
+{
+    struct rt_device_pin_mode *mode;
+    struct rt_device_pin *pin = (struct rt_device_pin *)dev;
+
+    /* check parameters */
+    RT_ASSERT(pin != RT_NULL);
+
+    mode = (struct rt_device_pin_mode *) args;
+    if (mode == RT_NULL) return -RT_ERROR;
+
+    pin->ops->pin_mode(dev, (rt_base_t)mode->pin, (rt_base_t)mode->mode);
+
+    return 0;
+}
+
+int rt_device_pin_register(const char *name, const struct rt_pin_ops *ops, void *user_data)
+{
+    _hw_pin.parent.type         = RT_Device_Class_Miscellaneous;
+    _hw_pin.parent.rx_indicate  = RT_NULL;
+    _hw_pin.parent.tx_complete  = RT_NULL;
+
+    _hw_pin.parent.init         = RT_NULL;
+    _hw_pin.parent.open         = RT_NULL;
+    _hw_pin.parent.close        = RT_NULL;
+    _hw_pin.parent.read         = _pin_read;
+    _hw_pin.parent.write        = _pin_write;
+    _hw_pin.parent.control      = _pin_control;
+
+    _hw_pin.ops                 = ops;
+    _hw_pin.parent.user_data    = user_data;
+
+    /* register a character device */
+    rt_device_register(&_hw_pin.parent, "pin", RT_DEVICE_FLAG_RDWR);
+
+    return 0;
+}
+
+/* RT-Thread Hardware PIN APIs */
+void rt_pin_mode(rt_base_t pin, rt_base_t mode)
+{
+    _hw_pin.ops->pin_mode(&_hw_pin.parent, pin, mode);
+}
+FINSH_FUNCTION_EXPORT_ALIAS(rt_pin_mode, pinMode, set hardware pin mode);
+
+void rt_pin_write(rt_base_t pin, rt_base_t value)
+{
+    _hw_pin.ops->pin_write(&_hw_pin.parent, pin, value);
+}
+FINSH_FUNCTION_EXPORT_ALIAS(rt_pin_write, pinWrite, write value to hardware pin);
+
+int  rt_pin_read(rt_base_t pin)
+{
+    return _hw_pin.ops->pin_read(&_hw_pin.parent, pin);
+}
+FINSH_FUNCTION_EXPORT_ALIAS(rt_pin_read, pinRead, read status from hardware pin);
diff --git a/src/kservice.c b/src/kservice.c
index fef284e8af..b5dc92b091 100644
--- a/src/kservice.c
+++ b/src/kservice.c
@@ -513,7 +513,7 @@ void rt_show_version(void)
     rt_kprintf("- RT -     Thread Operating System\n");
     rt_kprintf(" / | \\     %d.%d.%d build %s\n",
                RT_VERSION, RT_SUBVERSION, RT_REVISION, __DATE__);
-    rt_kprintf(" 2006 - 2013 Copyright by rt-thread team\n");
+    rt_kprintf(" 2006 - 2015 Copyright by rt-thread team\n");
 }
 RTM_EXPORT(rt_show_version);
 
diff --git a/tools/as.sh b/tools/as.sh
new file mode 100755
index 0000000000..d4f30f418c
--- /dev/null
+++ b/tools/as.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+astyle --style=allman --indent=spaces=4 --pad-oper --pad-header --unpad-paren --suffix=none --align-pointer=name --lineend=linux --convert-tabs --verbose $1
diff --git a/tools/building.py b/tools/building.py
index f12452ed7d..cafad2047a 100644
--- a/tools/building.py
+++ b/tools/building.py
@@ -1,3 +1,27 @@
+#
+# File      : building.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import os
 import sys
 import string
diff --git a/tools/codeblocks.py b/tools/codeblocks.py
index 78f9629cbb..cb07956e73 100644
--- a/tools/codeblocks.py
+++ b/tools/codeblocks.py
@@ -1,3 +1,27 @@
+#
+# File      : codeblocks.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import os
 import sys
 import string
diff --git a/tools/cscope.py b/tools/cscope.py
index 18568b4c35..daeda52f9d 100644
--- a/tools/cscope.py
+++ b/tools/cscope.py
@@ -1,3 +1,27 @@
+#
+# File      : cscope.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import os
 
 def _get_src(project):
diff --git a/tools/iar.py b/tools/iar.py
index 40b8408971..fda3fd8768 100644
--- a/tools/iar.py
+++ b/tools/iar.py
@@ -1,3 +1,27 @@
+#
+# File      : iar.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import os
 import sys
 import string
diff --git a/tools/keil.py b/tools/keil.py
index 8f8b926804..9d6b14b81a 100644
--- a/tools/keil.py
+++ b/tools/keil.py
@@ -1,3 +1,27 @@
+#
+# File      : keil.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import os
 import sys
 import string
diff --git a/tools/sconsui.py b/tools/sconsui.py
index eddccb49f4..3542c36278 100644
--- a/tools/sconsui.py
+++ b/tools/sconsui.py
@@ -1,6 +1,30 @@
 #! /usr/bin/env python
 #coding=utf-8
 
+#
+# File      : sconsui.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import sys
 
 py2 = py30 = py31 = False
diff --git a/tools/ua.py b/tools/ua.py
index 19384c5eba..31d2641031 100644
--- a/tools/ua.py
+++ b/tools/ua.py
@@ -1,3 +1,27 @@
+#
+# File      : ua.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import os
 import sys
 from utils import _make_path_relative
diff --git a/tools/utils.py b/tools/utils.py
index d1b0944939..0fa8cc742e 100644
--- a/tools/utils.py
+++ b/tools/utils.py
@@ -1,3 +1,27 @@
+#
+# File      : utils.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import sys
 import os
 
diff --git a/tools/vs.py b/tools/vs.py
index 1dce0ddaa7..bd1c7a4b24 100644
--- a/tools/vs.py
+++ b/tools/vs.py
@@ -1,3 +1,27 @@
+#
+# File      : vs.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import os
 import sys
 import string
diff --git a/tools/vs2012.py b/tools/vs2012.py
index 3e751e940e..14da3dcace 100644
--- a/tools/vs2012.py
+++ b/tools/vs2012.py
@@ -1,3 +1,27 @@
+#
+# File      : vs2012.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import os
 import sys
 import string
diff --git a/tools/win32spawn.py b/tools/win32spawn.py
index 8adc64306b..9b878bf69f 100644
--- a/tools/win32spawn.py
+++ b/tools/win32spawn.py
@@ -1,3 +1,27 @@
+#
+# File      : win32spawn.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 import os
 import threading
 import Queue
diff --git a/tools/wizard.py b/tools/wizard.py
index 4b2186fadb..41e90775d8 100755
--- a/tools/wizard.py
+++ b/tools/wizard.py
@@ -1,6 +1,30 @@
 #! /usr/bin/env python
 #coding=utf-8
 
+#
+# File      : wizard.py
+# This file is part of RT-Thread RTOS
+# COPYRIGHT (C) 2006 - 2015, RT-Thread Development Team
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# Change Logs:
+# Date           Author       Notes
+# 2015-01-20     Bernard      Add copyright information
+#
+
 """
 wizard.py - a script to generate SConscript in RT-Thread RTOS.