diff --git a/board/BDW01-STM32L496VG/doc/5.对接腾讯云与腾讯连连-定位器.md b/board/BDW01-STM32L496VG/doc/5.对接腾讯云与腾讯连连-定位器.md
index e93053ed..cbf79bfa 100644
--- a/board/BDW01-STM32L496VG/doc/5.对接腾讯云与腾讯连连-定位器.md
+++ b/board/BDW01-STM32L496VG/doc/5.对接腾讯云与腾讯连连-定位器.md
@@ -51,7 +51,7 @@ ATGM336H：中科微定位模块
 ### 4.1 软件开发工具的下载安装
 我们使用的软件开发工具是Keil公司的MDK(Microcontroller Development kit)，MDK官网下载地址：[http://www2.keil.com/mdk5](http://www2.keil.com/mdk5)
 
-下载的版本最好在5.24或5.24以上，本次介绍以5.25版本为例，双击MDK524应用程序文件，接着点击next>>。
+下载的版本最好在5.24或5.24以上，本次介绍以5.33版本为例，双击MDK533应用程序文件，接着点击next>>。
 
 ![](./image/mtkdl01.png)
 
@@ -93,7 +93,7 @@ BDW01开发板板载USB转串口芯片，所以使用USB线将开发板连接到
 工具下载网址：[http://www.daxia.com/download/sscom.rar](http://www.daxia.com/download/sscom.rar)
 下载完成后，解压，双击打开串口调试助手执行程序，直接使用。
 ![](./image/ch340ins02.png)
-使用USB线一端接开发板LOG USB串口，另一端连接到电脑，前面安装完CH340转串口芯片的驱动，打开电脑的设备管理器，就可以在端口列表查看PC与开发板之间连接端口号，然后在串口调试助手-端口号处，选择PC和开发板之间的连接端口(我这里显示的是COM15，所以要在串口调试助手中选择COM15)。
+使用USB线一端接开发板LOG USB串口，另一端连接到电脑，前面安装完CH340转串口芯片的驱动，打开电脑的设备管理器，就可以在端口列表查看PC与开发板之间连接端口号，然后在串口调试助手-端口号处，选择PC和开发板之间的连接端口(我这里显示的是COM10，所以要在串口调试助手中选择COM10)。
 ![](./image/ch340ins03.png)
 再根据开发板串口波特率设置串口调试助手-波特率，开发板程序波特率设置为115200，所以在串口调试助手中选择115200波特率。最后打开串口就可以使用了。
 
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