diff --git a/bsp/nuvoton_m05x/Libraries/CMSIS/Nuvoton/M051Series/Source/ARM/startup_M051Series.s b/bsp/nuvoton_m05x/Libraries/CMSIS/Nuvoton/M051Series/Source/ARM/startup_M051Series.s
index 7cc01d3ec1c7b033e146bfffde323b1d558767e7..b8e08d5bcd0fb5f3a0799bfa105129a439d97754 100644
--- a/bsp/nuvoton_m05x/Libraries/CMSIS/Nuvoton/M051Series/Source/ARM/startup_M051Series.s
+++ b/bsp/nuvoton_m05x/Libraries/CMSIS/Nuvoton/M051Series/Source/ARM/startup_M051Series.s
@@ -10,7 +10,7 @@
 ; *
 ; ******************************************************************************/
 
-Stack_Size      EQU     0x00000200
+Stack_Size      EQU     0x00000100
 
                 AREA    STACK, NOINIT, READWRITE, ALIGN=3
 Stack_Mem       SPACE   Stack_Size
diff --git a/bsp/nuvoton_m05x/applications/application.c b/bsp/nuvoton_m05x/applications/application.c
index bf48aeb4a3d12ecd18d4c64b680d78f103732135..652c12a1a0a17e18b97ccfb6c60b039573861552 100644
--- a/bsp/nuvoton_m05x/applications/application.c
+++ b/bsp/nuvoton_m05x/applications/application.c
@@ -56,7 +56,7 @@ static void rt_init_thread_entry(void* parameter)
     /* Create led thread */
     led_thread = rt_thread_create("led",
     		led_thread_entry, RT_NULL,
-    		256, 20, 20);
+    		128, 20, 20);
     if(led_thread != RT_NULL)
     	rt_thread_startup(led_thread);
 }
diff --git a/bsp/nuvoton_m05x/drivers/board.c b/bsp/nuvoton_m05x/drivers/board.c
index 8c9bd8ea76073584e6f622c53ff6f1863c714dab..15beaa6d853583a70c1bd88d47f01dfc478df7d6 100644
--- a/bsp/nuvoton_m05x/drivers/board.c
+++ b/bsp/nuvoton_m05x/drivers/board.c
@@ -14,9 +14,8 @@
 
 #include <rthw.h>
 #include <rtthread.h>
-
 #include "board.h"
-
+#include "usart.h"
 /* RT_USING_COMPONENTS_INIT */
 #ifdef  RT_USING_COMPONENTS_INIT
 #include <components.h>
@@ -44,7 +43,7 @@ void NVIC_Configuration(void)
 * @param  nCount: specifies the delay time length.
 * @retval None
 */
-static void Delay(__IO uint32_t nCount)
+static void delay(__IO uint32_t nCount)
 {
 	/* Decrement nCount value */
 	while (nCount != 0)
@@ -53,6 +52,30 @@ static void Delay(__IO uint32_t nCount)
 	}
 }
 
+static void rt_hw_system_init(void)
+{
+    /*---------------------------------------------------------------------------------------------------------*/
+    /* Init System Clock                                                                                       */
+    /*---------------------------------------------------------------------------------------------------------*/
+    SYS_UnlockReg();
+    /* Enable Internal RC 22.1184MHz clock */
+    CLK_EnableXtalRC(CLK_PWRCON_OSC22M_EN_Msk);
+
+    /* Waiting for Internal RC clock ready */
+    CLK_WaitClockReady(CLK_CLKSTATUS_OSC22M_STB_Msk);
+
+    /* Switch HCLK clock source to Internal RC and HCLK source divide 1 */
+    CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HIRC, CLK_CLKDIV_HCLK(1));
+
+    /* Set core clock as PLL_CLOCK from PLL */
+    CLK_SetCoreClock(BOARD_PLL_CLOCK);
+
+    /* Set SysTick clock source to HCLK source divide 2 */
+    CLK_SetSysTickClockSrc(CLK_CLKSEL0_STCLK_S_HCLK_DIV2);
+    
+    SYS_LockReg();
+}
+
 /**
  * This is the timer interrupt service routine.
  *
@@ -75,10 +98,13 @@ void rt_hw_board_init()
 	/* NVIC Configuration */
 	NVIC_Configuration();
 
+    /* Configure the system clock */
+    rt_hw_system_init();
 	/* Configure the SysTick */
 	SysTick_Config(SystemCoreClock / RT_TICK_PER_SECOND);
 
 	/* Initial usart deriver, and set console device */
+	rt_hw_usart_init();
 #ifdef RT_USING_CONSOLE
 	rt_console_set_device(RT_CONSOLE_DEVICE_NAME);
 #endif
diff --git a/bsp/nuvoton_m05x/drivers/board.h b/bsp/nuvoton_m05x/drivers/board.h
index e2f4ed673f720290dbf7c73833c34ed3534b2f1a..6c68944025b22a3bcb3d622d736b7662d4f5325e 100644
--- a/bsp/nuvoton_m05x/drivers/board.h
+++ b/bsp/nuvoton_m05x/drivers/board.h
@@ -18,6 +18,8 @@
 
 #include "M051Series.h"
 
+#define BOARD_PLL_CLOCK           50000000
+
 /* board configuration */
 // <o> Internal SRAM memory size[Kbytes]
 //	<i>Default: 64
diff --git a/bsp/nuvoton_m05x/drivers/usart.c b/bsp/nuvoton_m05x/drivers/usart.c
new file mode 100644
index 0000000000000000000000000000000000000000..91afa4130e3f13b357390284447b623b37113110
--- /dev/null
+++ b/bsp/nuvoton_m05x/drivers/usart.c
@@ -0,0 +1,133 @@
+/*
+ * File      : usart.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006-2014, 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
+ * 2014-11-29     Bright       the first version
+ */
+
+#include "M051Series.h"
+#include <rtdevice.h>
+#include "usart.h"
+
+
+static rt_err_t m05x_configure(struct rt_serial_device *serial, struct serial_configure *cfg)
+{
+    UART_T* uart;
+
+    uart = (UART_T *)serial->parent.user_data;
+#if defined(RT_USING_UART0)
+    if (uart == UART0) {
+        /* Enable UART module clock */
+        CLK_EnableModuleClock(UART0_MODULE);
+        /* Select UART module clock source */
+        CLK_SetModuleClock(UART0_MODULE, CLK_CLKSEL1_UART_S_PLL, CLK_CLKDIV_UART(1));
+
+        /* Set P3 multi-function pins for UART0 RXD and TXD */
+        SYS->P3_MFP &= ~(SYS_MFP_P30_Msk | SYS_MFP_P31_Msk);
+        SYS->P3_MFP |= (SYS_MFP_P30_RXD0 | SYS_MFP_P31_TXD0);
+        
+        /* Reset IP */
+        SYS_ResetModule(UART0_RST);
+        /* Configure UART0 and set UART0 Baudrate */
+        UART_Open(UART0, cfg->baud_rate);
+        
+        /* Enable Interrupt */
+        UART_EnableInt(UART0, UART_IER_RDA_IEN_Msk);
+    }
+#endif /* RT_USING_UART0 */
+
+#if defined(RT_USING_UART1)
+#endif /* RT_USING_UART1 */
+    return RT_EOK;
+}
+
+static rt_err_t m05x_control(struct rt_serial_device *serial, int cmd, void *arg)
+{
+    UART_T* uart;
+    uart = (UART_T *)serial->parent.user_data;
+
+    switch (cmd)
+    {
+        case RT_DEVICE_CTRL_CLR_INT: {
+                /* Disable Interrupt */
+                UART_DisableInt(uart, UART_IER_RDA_IEN_Msk);
+            break;
+        }
+        case RT_DEVICE_CTRL_SET_INT: {
+                UART_EnableInt(uart, UART_IER_RDA_IEN_Msk);
+            break;
+        }
+    }
+
+    return RT_EOK;
+}
+
+static int m05x_putc(struct rt_serial_device *serial, char c)
+{
+    UART_T* uart;
+    uart = (UART_T *)serial->parent.user_data;
+    if (UART_IS_TX_FULL(uart)) {
+        UART_WAIT_TX_EMPTY(uart);
+        
+    }
+    UART_WRITE(uart, c);
+    return 1;
+}
+
+static int m05x_getc(struct rt_serial_device *serial)
+{
+    int ch = -1;
+    UART_T* uart;
+    uart = (UART_T *)serial->parent.user_data;
+
+    if (UART_IS_RX_READY(uart))
+        ch = UART_READ(uart);
+    return ch;
+}
+
+static const struct rt_uart_ops m05x_uart_ops =
+{
+    m05x_configure,
+    m05x_control,
+    m05x_putc,
+    m05x_getc,
+};
+
+#if defined(RT_USING_UART0)
+struct rt_serial_device serial0;
+
+void UART0_IRQHandler(void)
+{
+    /* enter interrupt */
+    rt_interrupt_enter();
+
+    if (UART_IS_RX_READY(UART0)) {
+        rt_hw_serial_isr(&serial0, RT_SERIAL_EVENT_RX_IND);
+    }
+    /* leave interrupt */
+    rt_interrupt_leave();
+}
+#endif /* RT_USING_UART0 */
+
+void rt_hw_usart_init(void)
+{
+#ifdef RT_USING_UART0
+    struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
+    config.baud_rate = BAUD_RATE_115200;
+    serial0.ops    = &m05x_uart_ops;
+    serial0.config = config;
+
+    /* register UART0 device */
+    rt_hw_serial_register(&serial0, "uart0",
+                          RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_INT_RX,
+                          UART0);
+#endif /* RT_USING_UART0 */
+
+}
diff --git a/bsp/nuvoton_m05x/drivers/usart.h b/bsp/nuvoton_m05x/drivers/usart.h
new file mode 100644
index 0000000000000000000000000000000000000000..ba66eba2732e2e72a3c78e952a9bde289984fa7f
--- /dev/null
+++ b/bsp/nuvoton_m05x/drivers/usart.h
@@ -0,0 +1,26 @@
+/*
+ * File      : usart.c
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006-2014, 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
+ * 2014-11-29     Bright       the first version
+ */
+
+#ifndef __USART_H__
+#define __USART_H__
+
+#include <rthw.h>
+#include <rtthread.h>
+
+#define RT_USING_UART0
+//#define RT_USING_UART1
+
+void rt_hw_usart_init(void);
+
+#endif
diff --git a/bsp/nuvoton_m05x/project.uvprojx b/bsp/nuvoton_m05x/project.uvprojx
index 8972ab2de93673820dfc3894e349fa4e678a0ea7..a1d4df386c3fc74fdfe1b00a22f72d605cb02ffd 100644
--- a/bsp/nuvoton_m05x/project.uvprojx
+++ b/bsp/nuvoton_m05x/project.uvprojx
@@ -207,8 +207,8 @@
             <AdsLsun>1</AdsLsun>
             <AdsLven>1</AdsLven>
             <AdsLsxf>1</AdsLsxf>
-            <RvctClst>1</RvctClst>
-            <GenPPlst>1</GenPPlst>
+            <RvctClst>0</RvctClst>
+            <GenPPlst>0</GenPPlst>
             <AdsCpuType>"Cortex-M0"</AdsCpuType>
             <RvctDeviceName></RvctDeviceName>
             <mOS>0</mOS>
@@ -363,7 +363,7 @@
               <MiscControls></MiscControls>
               <Define>INIT_SYSCLK_AT_BOOTING</Define>
               <Undefine></Undefine>
-              <IncludePath>.;..\..\components\drivers\include;..\..\components\init;..\..\include;..\..\libcpu\arm\common;..\..\libcpu\arm\cortex-m0;Libraries\CMSIS\Include;Libraries\CMSIS\Nuvoton\M051Series\Include;Libraries\StdDriver\inc;applications;drivers</IncludePath>
+              <IncludePath>.;..\..\components\drivers\include;..\..\components\finsh;..\..\components\init;..\..\include;..\..\libcpu\arm\common;..\..\libcpu\arm\cortex-m0;Libraries\CMSIS\Include;Libraries\CMSIS\Nuvoton\M051Series\Include;Libraries\StdDriver\inc;applications;drivers</IncludePath>
             </VariousControls>
           </Cads>
           <Aads>
@@ -396,7 +396,7 @@
             <ScatterFile>.\nuvoton_m05x.sct</ScatterFile>
             <IncludeLibs></IncludeLibs>
             <IncludeLibsPath></IncludeLibsPath>
-            <Misc> --keep __rt_init* </Misc>
+            <Misc> --keep __fsym_* --keep __vsym_*   --keep __rt_init* </Misc>
             <LinkerInputFile></LinkerInputFile>
             <DisabledWarnings></DisabledWarnings>
           </LDads>
@@ -431,6 +431,11 @@
               <FileType>1</FileType>
               <FilePath>drivers\led.c</FilePath>
             </File>
+            <File>
+              <FileName>usart.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>drivers\usart.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
@@ -648,6 +653,76 @@
             </File>
           </Files>
         </Group>
+        <Group>
+          <GroupName>finsh</GroupName>
+          <Files>
+            <File>
+              <FileName>shell.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\shell.c</FilePath>
+            </File>
+            <File>
+              <FileName>symbol.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\symbol.c</FilePath>
+            </File>
+            <File>
+              <FileName>cmd.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\cmd.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_compiler.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_compiler.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_error.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_error.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_heap.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_heap.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_init.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_init.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_node.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_node.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_ops.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_ops.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_parser.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_parser.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_var.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_var.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_vm.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_vm.c</FilePath>
+            </File>
+            <File>
+              <FileName>finsh_token.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\..\components\finsh\finsh_token.c</FilePath>
+            </File>
+          </Files>
+        </Group>
         <Group>
           <GroupName>Components</GroupName>
           <Files>
diff --git a/bsp/nuvoton_m05x/rtconfig.h b/bsp/nuvoton_m05x/rtconfig.h
index a8d3a488113291ad3435e1bf21b1abfdecbeea51..7face48d7bb04b0ee6106eabfdb18e888c147ced 100644
--- a/bsp/nuvoton_m05x/rtconfig.h
+++ b/bsp/nuvoton_m05x/rtconfig.h
@@ -10,7 +10,7 @@
 
 /* PRIORITY_MAX */
 #define RT_THREAD_PRIORITY_MAX	32
-
+#define IDLE_THREAD_STACK_SIZE 128
 /* Tick per Second */
 #define RT_TICK_PER_SECOND	100
 
@@ -54,7 +54,6 @@
 
 /* Using Small MM */
 #define RT_USING_SMALL_MEM
-#define RT_USING_TINY_SIZE
 
 // <bool name="RT_USING_COMPONENTS_INIT" description="Using RT-Thread components initialization" default="true" />
 #define RT_USING_COMPONENTS_INIT
@@ -68,19 +67,20 @@
 #define RT_USING_SERIAL
 
 /* SECTION: Console options */
-//#define RT_USING_CONSOLE
+#define RT_USING_CONSOLE
 /* the buffer size of console*/
-#define RT_CONSOLEBUF_SIZE	128
+#define RT_CONSOLEBUF_SIZE	64
 // <string name="RT_CONSOLE_DEVICE_NAME" description="The device name for console" default="uart1" />
-#define RT_CONSOLE_DEVICE_NAME	    "uart1"
+#define RT_CONSOLE_DEVICE_NAME	    "uart0"
 
 
 
 /* SECTION: finsh, a C-Express shell */
-//#define RT_USING_FINSH
+#define RT_USING_FINSH
 /* configure finsh parameters */
 #define FINSH_THREAD_PRIORITY 25
-#define FINSH_THREAD_STACK_SIZE	1024
+#define FINSH_THREAD_STACK_SIZE	512
+#define FINSH_USING_HISTORY 0
 #define FINSH_HISTORY_LINES	1
 /* Using symbol table */
 #define FINSH_USING_SYMTAB