add makesd/for_1.7x.0.0/README_EN.md.

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+# for_1.7x.0.0
+
+## File List
+
+- Entry script for SD card making: **make_sd_card.py**
+
+- Entry script for SD card making: **make_ubuntu_sd.sh**
+
+- Entry script for SD card making: **ubuntu-18.04.xxserver-arm64.iso**.[click jump](http://cdimage.ubuntu.com/ubuntu/releases/18.04/release/)
+
+- Entry script for SD card making: **Ascend310-firmware-xxx-minirc.run**, **Ascend310-aicpu_kernels-xxx-minirc.tar.gz**, **Ascend-acllib-xxx-ubuntu18.04.aarch64-minirc.run**.[click jump](https://www.huaweicloud.com/ascend/resource/Software)
+
+## Procedure
+
+**Before starting SD card making, prepare the environment as follows.**
+
+1. Download the software packages required for SD card making from  
+	**https://www.huaweicloud.com/intl/en-us/ascend/resource/Software**  
+	![下载制卡包](https://images.gitee.com/uploads/images/2020/0729/140246_96db39de_5395865.png)
+
+2. 下载制卡脚本和ubuntu18.04-arm.iso。  
+	在本地环境普通用户（以ascend用户为例）的$HOME目录下执行以下命令，下载tools仓代码。  
+	**git clone https://gitee.com/ascend/tools.git**  
+	（注：如果没有安装git，执行sudo apt-get install git 安装git）  
+
+	执行以下命令，进入C73制卡目录。  
+	**cd $HOME/tools/makesd/for_1.7x.0.0/**  
+	```powershell  
+	ascend@ubuntu:~$ git clone https://gitee.com/ascend/tools.git
+	Cloning into 'tools'...
+	remote: Enumerating objects: 273, done.
+	remote: Counting objects: 100% (273/273), done.
+	remote: Compressing objects: 100% (263/263), done.
+	remote: Total 273 (delta 128), reused 0 (delta 0), pack-reused 0
+	Receiving objects: 100% (273/273), 533.57 KiB | 877.00 KiB/s, done.
+	Resolving deltas: 100% (128/128), done.
+	ascend@ubuntu:~$ cd tools/
+	amexec/  .git/    img2bin/ makesd/  
+	ascend@ubuntu:~$ cd tools/makesd/for_1.7x.0.0/
+	ascend@ubuntu:~/tools/makesd/for_1.7x.0.0$ ls
+	make_sd_card.py  make_ubuntu_sd.sh  README.md
+	ascend@ubuntu:~/tools/makesd/for_1.7x.0.0$ ^C
+	ascend@ubuntu:~/tools/makesd/for_1.7x.0.0$ 
+	```  
+	执行以下命令下载ubuntu18.04-arm.iso镜像。  
+	**wget http://cdimage.ubuntu.com/ubuntu/releases/18.04/release/ubuntu-18.04.4-server-arm64.iso**  
+	（文件大小为953M，下载约要10min）  
+	
+	下载完成后，执行以下命令，给脚本和iso镜像加权限。  
+	**chmod 755 make_sd_card.py make_ubuntu_sd.sh ubuntu-18.04.4-server-arm64.iso**  
+	
+3. 将之前下载的制卡所需包放置到该目录（普通用户的 $HOME/tools/makesd/for_1.7x.0.0）下。  
+	```powershell  
+	ascend@ubuntu:~/tools/makesd/for_1.7x.0.0$ ll
+	total 80920
+	drwxr-xr-x 2 ascend ascend     4096 Jul 28 04:33 ./
+	drwxr-xr-x 4 ascend ascend     4096 Jul 28 04:23 ../
+	-rw-r--r-- 1 ascend ascend   173441 Jul 28 04:32 Ascend310-aicpu_kernels-1.73.5.1.b050-minirc.tar.gz
+	-rw-r--r-- 1 ascend ascend   449942 Jul 28 04:32 Ascend310-firmware-1.73.5.1.b050-minirc.run
+	-rw-r--r-- 1 ascend ascend  4457767 Jul 28 04:33 Ascend-acllib-1.73.5.1.b050-ubuntu18.04.aarch64-minirc.run
+	-rwxr-xr-x 1 ascend ascend    17633 Jul 28 04:23 make_sd_card.py*
+	-rwxr-xr-x 1 ascend ascend    23797 Jul 28 04:23 make_ubuntu_sd.sh*
+	-rw-r--r-- 1 ascend ascend      438 Jul 28 04:23 README.md
+	-rwxr-xr-x 1 ascend ascend 82800726 Jul 28 04:27 ubuntu-18.04.4-server-arm64.iso*
+	ascend@ubuntu:~/tools/makesd/for_1.7x.0.0$ 
+	```  
+
+4. 将插有SD卡的读卡器连接Ubuntu服务器，制作SD卡：  
+
+	执行以下命令，切换root用户，准备制卡。  
+	**su root**
+
+	执行以下命令，执行脚本准备制卡  
+	**python3 make_sd_card.py local /dev/sdb**  
+	（说明：/dev/sdb 是SD卡的设备名，可以在root用户下执行fdisk -l查看。）  
+	![mksd2](https://images.gitee.com/uploads/images/2020/0729/140246_f7c541a0_5395865.png)  
+	如图，制卡过程中，提示是否继续安装，输入**Y**。  
+	等待约7min，提示**Make SD Card successfully!**,则制卡成功。  
+	
+5. 上电Atlas 200DK开发板。  
+	将制好的卡放入Atlas 200DK开发板，上电后连接Ubuntu服务器。  
+	**注：开发板升级过程中会有两个灯闪烁，当四个灯常亮时即为升级成功，升级过程约5-10min**