diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/README.md b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/README.md
index ac6520e45..e880c502b 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/README.md
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/README.md
@@ -62,31 +62,32 @@ cd kconfig-frontends
 
 ### 编译工具链：
 
-RISC-V: riscv-none-embed-，默认安装到Ubuntu的/opt/，下载源码并解压。[下载网址 http://101.36.126.201:8011/gnu-mcu-eclipse.tar.bz2](http://101.36.126.201:8011/gnu-mcu-eclipse.tar.bz2)
+RISC-V: riscv-nuclei-elf-，默认安装到Ubuntu的/opt/，下载源码并解压。[下载网址 https://www.nucleisys.com/download.php]
+![vscode](img/riscv_gnu.png)
 
 ```shell
-$ tar -xjf gnu-mcu-eclipse.tar.bz2 -C /opt/
+$ tar -xjf nuclei_riscv_newlibc_prebuilt_linux64_2020.08.tar.bz2 -C /opt/
 ```
 
 将上述解压的编译工具链的路径添加到board/hifive1-rev-B/config.mk文件当中，例如：
 
 ```
-export CROSS_COMPILE ?=/opt/gnu-mcu-eclipse/riscv-none-gcc/8.2.0-2.1-20190425-1021/bin/riscv-none-embed-
+export CROSS_COMPILE ?=/opt/Nuclei/gcc/bin/riscv-nuclei-elf-
 ```
 
 若已存在`export CROSS_COMPILE ?=xxxx`   应该将原有的语句注释，再写入上面的语句。
 
-# 在gapuino board 上创建第一个应用
+# 在gd32vf103_rvstar board 上创建第一个应用
 
-## 1.gapuino board 简介
+## 1.gd32vf103_rvstar board 简介
 
 | 硬件 | 描述 |
 | -- | -- |
-|芯片型号| gap8 |
+|芯片型号| gd32vf103 |
 |架构| RV32IMAC |
-|主频| 200+MHz |
-|片内SRAM| 512KB |
-| 外设 | UART、SPI、I2C |
+|主频| 108MHz |
+|片内SRAM| 32KB |
+| 外设 | Timer（高级16位定时器，通用16位定时器）、U(S)ART、I2C、SPI/I2S、CAN、USBFS、ADC（16路外部通道）、DAC、EXMC、GPIO |
 
 XiUOS板级当前支持使用UART。
 
@@ -108,7 +109,7 @@ XiUOS板级当前支持使用UART。
 1.在VScode终端下执行以下命令，生成配置文件
 
 ```
-make BOARD=gapuino menuconfig
+make BOARD=gd32vf103_rvstar menuconfig
 ```
 
 2.在menuconfig界面配置需要关闭和开启的功能，按回车键进入下级菜单，按Y键选中需要开启的功能，按N键选中需要关闭的功能，配置结束后选择Exit保存并退出
@@ -118,40 +119,38 @@ make BOARD=gapuino menuconfig
 3.继续执行以下命令，进行编译
 
 ```
-make BOARD=gapuino
+make BOARD=gd32vf103_rvstar
 ```
 
-4.如果编译正确无误，build文件夹下会产生XiUOS_gapuino.elf、XiUOS_gapuino.bin文件。
+4.如果编译正确无误，build文件夹下会产生XiUOS_gd32vf103_rvstar.elf、XiUOS_gd32vf103_rvstar.bin文件。
 
 >注：最后可以执行以下命令，清除配置文件和编译生成的文件
 
 ```
-make BOARD=gapuino distclean
+make BOARD=gd32vf103_rvstar distclean
 ```
 
-## 3. 烧写及执行
+## 3. 烧写及调试执行
 
-gapuino支持jtag，可以通过jtag进行烧录和调试。
-调试烧写需要下载gap sdk和openocd,下载配置方法参见以下文档：
-https://greenwaves-technologies.com/setting-up-sdk/
+rvstar支持openocd，可以通过openocd和gdb进行调试。
+调试需要下载openocd和nuclei sdk,下载配置方法参见以下文档：
+https://doc.nucleisys.com/nuclei_sdk/quickstart.html#figure-quickstart-5
 
-在SDK 和openocd安装完成以后，按照如下步骤进行调试：
+openocd安装完成以后，按照如下步骤进行调试：
 
-1、进入sdk目录路径下
+1、进入xiuos目录路径下
 ```
-cd ~/gap_sdk 
+cd ~/xiuos/Ubiquitous/XiUOS 
 ```
 
-2、在当前终端输入
-```
-source sourceme.sh 
-```
-出现如下图所示的界面，输入7选择单板名称；
-![choose](./img/choose_board.png)
+2、编译生成elf文件
 
-3、先按开发板的复位键，再在当前终端输入
+
+3、使用USB先和串口连接好开发板，进入openocd目录下，再在当前终端输入
 ```
-gap8-openocd  -f interface/ftdi/gapuino_ftdi.cfg -f target/gap8.tcl -f tcl/jtag_boot_entry.tcl 
+cd ~/Nuclei/openocd/0.10.0-15/bin
+
+./openocd -f ~/nuclei-sdk/SoC/gd32vf103/Board/gd32vf103v_rvstar/openocd_gd32vf103.cfg 
 ```
 在当前终端连接openocd，连接如下图所示：
 ![openocd](./img/openocd.png)
@@ -164,7 +163,7 @@ screen /dev/ttyUSB0 115200
 
 5、打开一个新的终端，进入编译生成的elf路径,输入例如：
 ```
-riscv32-unknown-elf-gdb build/XiUOS_gapuino.elf -ex "target remote localhost:3333"
+riscv-nuclei-elf-gdb build/XiUOS_gd32vf103_rvstar.elf -ex "target remote localhost:3333"
 ```
 结果如下图所示：
 ![gdb](./img/gdb_load.png)
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/board.c b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/board.c
index 3e1ee1d3c..0655641fd 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/board.c
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/board.c
@@ -12,7 +12,7 @@
 
 /**
 * @file board.c
-* @brief support gap8 init configure and start-up
+* @brief support rvstar init configure and start-up
 * @version 1.0 
 * @author AIIT XUOS Lab
 * @date 2021-09-02
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/board.h b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/board.h
index 750debd41..fee208c50 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/board.h
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/board.h
@@ -12,7 +12,7 @@
 
 /**
 * @file board.h
-* @brief define gapuino-board init configure and start-up function
+* @brief define rvstar-board init configure and start-up function
 * @version 1.0 
 * @author AIIT XUOS Lab
 * @date 2021-09-02
@@ -20,14 +20,14 @@
 
 /*************************************************
 File name: board.h
-Description: define gapuino-board init configure and start-up function
+Description: define rvstar-board init configure and start-up function
 Others: 
 History: 
 1. Date: 2021-09-02
 Author: AIIT XUOS Lab
 Modification: 
-1. define gapuino-board InitBoardHardware
-2. define gapuino-board data and bss struct
+1. define rvstar-board InitBoardHardware
+2. define rvstar-board data and bss struct
 *************************************************/
 #ifndef BOARD_H__
 #define BOARD_H__
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/config.mk b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/config.mk
index b2ec28c46..203020e6f 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/config.mk
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/config.mk
@@ -1,20 +1,4 @@
 
-# export CFLAGS := -mcmodel=medany -march=rv32imac -mabi=ilp32 -fno-common -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -O0 -ggdb -fgnu89-inline -Werror
-# export AFLAGS := -c -mcmodel=medany -march=rv32imac -mabi=ilp32 -x assembler-with-cpp -ggdb
-# export LFLAGS := --specs=nano.specs --specs=nosys.specs -nostartfiles -Wl,--gc-sections,-Map=XiUOS_gd32vf103.map,-cref,-u,_start -T $(BSP_ROOT)/link.lds
-
-# export APPLFLAGS := -mcmodel=medany -march=rv32imac -mabi=ilp32 -nostartfiles -Wl,--gc-sections,-Map=XiUOS_app.map,-cref,-u, -T $(BSP_ROOT)/link_userspace.lds
-
-# export CXXFLAGS := -mcmodel=medany -march=rv32imac -mabi=ilp32 -fno-common -ffunction-sections -fdata-sections -fstrict-volatile-bitfields -O0 -ggdb -Werror
-
-# export CROSS_COMPILE ?=/opt/Nuclei/gcc/bin/riscv-nuclei-elf-
-
-# export DEFINES := -DHAVE_CCONFIG_H -DHAVE_SIGINFO
-
-# export ARCH = risc-v
-# export MCU =  GD32VF103
-
-
 export CFLAGS :=  -march=rv32imac -mabi=ilp32 -fno-common -ffunction-sections -fdata-sections  -O0 -ggdb -fgnu89-inline -Werror
 export AFLAGS :=  -march=rv32imac -mabi=ilp32 -x assembler-with-cpp -ggdb
 export LFLAGS :=  -march=rv32imac -mabi=ilp32 -nostartfiles -Wl,--gc-sections,-Map=XiUOS_gd32vf103.map,-cref,-u,_start -T $(BSP_ROOT)/link.lds
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/gd32vf103v_rvstar.c b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/gd32vf103v_rvstar.c
index 6d592b002..f60645331 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/gd32vf103v_rvstar.c
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/gd32vf103v_rvstar.c
@@ -5,6 +5,15 @@
  *  \version 2020-02-05, V1.0.0, rvstar board functions for GD32VF103
  */
 
+/**
+* @file gd32vf103_rvstar.c
+* @brief add from nuclei SDK
+*                https://github.com/Nuclei-Software/nuclei-sdk
+* @version 1.1
+* @author AIIT XUOS Lab
+* @date 2021-12-03
+*/
+
 /*
     Copyright (c) 2019, GigaDevice Semiconductor Inc.
 
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/gdb_load.png b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/gdb_load.png
new file mode 100644
index 000000000..854815a2d
Binary files /dev/null and b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/gdb_load.png differ
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/menuconfig.png b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/menuconfig.png
new file mode 100644
index 000000000..183423223
Binary files /dev/null and b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/menuconfig.png differ
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/openocd.png b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/openocd.png
new file mode 100644
index 000000000..356b7254d
Binary files /dev/null and b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/openocd.png differ
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/riscv_gnu.png b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/riscv_gnu.png
new file mode 100644
index 000000000..f065e9f09
Binary files /dev/null and b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/riscv_gnu.png differ
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/terminal.png b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/terminal.png
new file mode 100644
index 000000000..602810bd6
Binary files /dev/null and b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/terminal.png differ
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/vscode.jpg b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/vscode.jpg
new file mode 100644
index 000000000..b9bacff78
Binary files /dev/null and b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/img/vscode.jpg differ
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/gpio/gd32vf103_gpio.c b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/gpio/gd32vf103_gpio.c
index 7e36269a0..ce6c0bb0f 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/gpio/gd32vf103_gpio.c
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/gpio/gd32vf103_gpio.c
@@ -32,6 +32,15 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI
 OF SUCH DAMAGE.
 */
 
+/**
+* @file gd32vf103_gpio.c
+* @brief add from nuclei SDK
+*                https://github.com/Nuclei-Software/nuclei-sdk
+* @version 1.1
+* @author AIIT XUOS Lab
+* @date 2021-12-03
+*/
+
 #include "gd32vf103_gpio.h"
 
 #define AFIO_EXTI_SOURCE_MASK              ((uint8_t)0x03U)         /*!< AFIO exti source selection mask*/
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/include/connect_uart.h b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/include/connect_uart.h
index 1bfa45689..fe141d160 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/include/connect_uart.h
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/include/connect_uart.h
@@ -12,10 +12,10 @@
 
 /**
 * @file connect_uart.h
-* @brief define gap8-board uart function and struct
+* @brief define rvstar uart function 
 * @version 1.1
 * @author AIIT XUOS Lab
-* @date 2021-07-27
+* @date 2021-12-03
 */
 
 #ifndef CONNECT_UART_H
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/sys_clock/gd32vf103_rcu.c b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/sys_clock/gd32vf103_rcu.c
index 49edb5815..edd36af4d 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/sys_clock/gd32vf103_rcu.c
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/sys_clock/gd32vf103_rcu.c
@@ -32,6 +32,15 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI
 OF SUCH DAMAGE.
 */
 
+/**
+* @file gd32vf103_rcu.c
+* @brief add from nuclei SDK
+*                https://github.com/Nuclei-Software/nuclei-sdk
+* @version 1.1
+* @author AIIT XUOS Lab
+* @date 2021-12-03
+*/
+
 #include "gd32vf103_rcu.h"
 
 
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/sys_clock/gd32vf103_soc.c b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/sys_clock/gd32vf103_soc.c
index f09165fd7..43b90e694 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/sys_clock/gd32vf103_soc.c
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/sys_clock/gd32vf103_soc.c
@@ -1,3 +1,12 @@
+/**
+* @file gd32vf103_soc.c
+* @brief add from nuclei SDK
+*                https://github.com/Nuclei-Software/nuclei-sdk
+* @version 1.1
+* @author AIIT XUOS Lab
+* @date 2021-12-03
+*/
+
 #include "nuclei_sdk_soc.h"
 #include <core_feature_timer.h>
 
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/system_gd32vf103.c b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/system_gd32vf103.c
index d3e4a2272..294830816 100644
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/system_gd32vf103.c
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/system_gd32vf103.c
@@ -23,6 +23,16 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+
+/**
+* @file system_gd32vf103.c
+* @brief add from nuclei SDK
+*                https://github.com/Nuclei-Software/nuclei-sdk
+* @version 1.1
+* @author AIIT XUOS Lab
+* @date 2021-12-03
+*/
+
 #include <stdint.h>
 #include <stdio.h>
 #include "nuclei_sdk_hal.h"
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/uart/connect_uart.c b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/uart/connect_uart.c
index 988e6d0e2..7f929ada1 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/uart/connect_uart.c
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/uart/connect_uart.c
@@ -12,10 +12,10 @@
 
 /**
 * @file connect_usart.c
-* @brief support gap8-board uart function and register to bus framework
+* @brief supportrvstar-board uart function and register to bus framework
 * @version 1.1
 * @author AIIT XUOS Lab
-* @date 2021-09-02
+* @date 2021-12-03
 */
 
 #include <xiuos.h>
diff --git a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/uart/gd32vf103_usart.c b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/uart/gd32vf103_usart.c
index f2c44268b..9269ace87 100755
--- a/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/uart/gd32vf103_usart.c
+++ b/Ubiquitous/XiUOS/board/gd32vf103_rvstar/third_party_driver/uart/gd32vf103_usart.c
@@ -32,6 +32,15 @@ ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSI
 OF SUCH DAMAGE.
 */
 
+/**
+* @file gd32vf103_usart.c
+* @brief add from nuclei SDK
+*                https://github.com/Nuclei-Software/nuclei-sdk
+* @version 1.1
+* @author AIIT XUOS Lab
+* @date 2021-12-03
+*/
+
 #include "gd32vf103_usart.h"
 
 /*!