diff --git a/Kconfig.liteos_m.boards b/Kconfig.liteos_m.boards
index da2ff2daab3aa8c4847f56ce8e1fcc1dbc419214..e9076ee918087bde8ffe318aa9c398d210aa9ba8 100644
--- a/Kconfig.liteos_m.boards
+++ b/Kconfig.liteos_m.boards
@@ -12,4 +12,3 @@
 # limitations under the License.
 
 orsource "*/Kconfig.liteos_m.board"
-
diff --git a/README.en.md b/README.en.md
deleted file mode 100644
index 4a0cbbd292ef249880fd469d4a79eec3788d42b5..0000000000000000000000000000000000000000
--- a/README.en.md
+++ /dev/null
@@ -1,36 +0,0 @@
-# device_board_espressif
-
-#### Description
-{**When you're done, you can delete the content in this README and update the file with details for others getting started with your repository**}
-
-#### Software Architecture
-Software architecture description
-
-#### Installation
-
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### Instructions
-
-1.  xxxx
-2.  xxxx
-3.  xxxx
-
-#### Contribution
-
-1.  Fork the repository
-2.  Create Feat_xxx branch
-3.  Commit your code
-4.  Create Pull Request
-
-
-#### Gitee Feature
-
-1.  You can use Readme\_XXX.md to support different languages, such as Readme\_en.md, Readme\_zh.md
-2.  Gitee blog [blog.gitee.com](https://blog.gitee.com)
-3.  Explore open source project [https://gitee.com/explore](https://gitee.com/explore)
-4.  The most valuable open source project [GVP](https://gitee.com/gvp)
-5.  The manual of Gitee [https://gitee.com/help](https://gitee.com/help)
-6.  The most popular members  [https://gitee.com/gitee-stars/](https://gitee.com/gitee-stars/)
diff --git a/README.md b/README.md
index 88659a61fd04aa8058a3b5638cae1906f68c6079..21e3566115280dc5420f92a9504e35f1b82081cd 100644
--- a/README.md
+++ b/README.md
@@ -2,15 +2,15 @@
 ## 介绍
 ESP32-DEVKITC_V4是乐鑫一款基于ESP32_WROVER_IE的小型开发板。单模组采用了ESP32系列的ESP32-D0WD-V3芯片（xtensa 32-bit LX6 双核处理器），CPU时钟频率可调节为80MHz到240MHz，配置4MB SPI flash和8MB SPI PSRAM，集成传统蓝牙、低功耗蓝牙和Wi-Fi。可以用于低功耗传感器网络和要求极高的任务，例如语音编码、音频流和 MP3 解码等。
 
-开发板外观图片。
+开发板正面图片：
 
 ![ESP32正面照片](https://gitee.com/baochenjin/device_board_espressif/raw/master/figures/ESP32正面照片.jpg)
 
-开发板底板图片。
+开发板背面图片：
 
 ![ESP32背面照片](https://gitee.com/baochenjin/device_board_espressif/raw/master/figures/ESP32背面照片.jpg)
 
-开发板功能块图。
+开发板功能块图：
 
 ![ESP32-WROVER_IE功能图](https://gitee.com/baochenjin/device_board_espressif/raw/master/figures/ESP32-WROVER_IE功能图.png)
 
@@ -52,7 +52,8 @@ ESP32-DEVKITC_V4是乐鑫一款基于ESP32_WROVER_IE的小型开发板。单模
 ## 搭建开发环境
 
 ### 系统要求
-OpenHarmony在基于Xtensa 32-bit LX6芯片的ESP32-WROVER-IE模组，依赖liteos_m内核，内核依赖LX6架构配置，编译依赖a乐鑫官方提供的xtensa-esp32-elf-gcc 8.2.0版本
+系统要求基于Xtensa LX6结构的liteos_m内核操作系统，采用乐鑫官方提供的xtensa-esp32-elf-gcc 8.2.0版本的toolchain。
+
 OpenHarmony需要按照官方文档介绍安装环境https://gitee.com/openharmony-sig/device_soc_espressif/blob/master/README.md，然后编译出烧录包，按照文档介绍烧录。
 
 ### 工具要求
@@ -79,7 +80,3 @@ https://gitee.com/openharmony-sig/device_soc_espressif/blob/master/README.md
 https://gitee.com/openharmony-sig/device_soc_espressif/blob/master/README.md
 
 https://www.espressif.com/zh-hans/support/documents/technical-documents?keys=&field_type_tid%5B%5D=681
-
-## 联系
-
-**********
\ No newline at end of file
diff --git a/esp32_devkitc_v4/Kconfig.liteos_m.board b/esp32_devkitc_v4/Kconfig.liteos_m.board
index 0e76fc3288acd3dbf5cf065f6cdd4823a1becf42..ac76ec6a4dffd5f460603a36dc7c5bca5550820c 100644
--- a/esp32_devkitc_v4/Kconfig.liteos_m.board
+++ b/esp32_devkitc_v4/Kconfig.liteos_m.board
@@ -14,4 +14,3 @@
 config BOARD_ESP32_DEVKITC_V4
     bool "select board esp32"
     depends on SOC_ESP32
-
diff --git a/esp32_devkitc_v4/Kconfig.liteos_m.defconfig.board b/esp32_devkitc_v4/Kconfig.liteos_m.defconfig.board
index 7e3d03180701af915bf966d0aeb0f90551e40678..432f06561052cc5a96ce7c66f34ee272e4ba2892 100644
--- a/esp32_devkitc_v4/Kconfig.liteos_m.defconfig.board
+++ b/esp32_devkitc_v4/Kconfig.liteos_m.defconfig.board
@@ -11,11 +11,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-if BOARD_CB2201
+if BOARD_ESP32_DEVKITC_V4
 config FLASH_SIZE
     int 
     default 16
     help 
         support flash size
-endif #BOARD_CB2201
-
+endif #BOARD_ESP32_DEVKITC_V4
diff --git a/esp32_devkitc_v4/liteos_m/config.gni b/esp32_devkitc_v4/liteos_m/config.gni
index 2723ec2bac674590620bb92f103e1e2e5e295c9c..a23660f179b59b6e1fe395e6d40fdb1893f10dba 100644
--- a/esp32_devkitc_v4/liteos_m/config.gni
+++ b/esp32_devkitc_v4/liteos_m/config.gni
@@ -77,6 +77,7 @@ board_cflags = [
   "-DLFS_MAX_OPEN_DIRS=32",
   "-DMBEDTLS_CMSIS_FILE=\"rtos/liteos/liteos_m/kal/cmsis/cmsis_os.h\"",
   "-DLOSCFG_BASE_CORE_HILOG",
+  "-D__NEED_uintptr_t",
 ]
 
 # config.json parse