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Apache-2.0

Qingyun-tools

定制青云开发板系统,并将系统镜像烧录至SD卡的脚本工具,基于华为Atlas 200 AI加速模块的开发文档

编译系统内核

如果您需要特别定制自己的青云开发板系统,为系统添加一些自定义的功能,请遵循本节的步骤,配置并编译开发板的Linux系统内核。

本工具支持在青云开发板上直接编译,也支持使用x64 Linux服务器(含虚拟机与WSL)交叉编译。若要在青云开发板上直接编译,建议使用Windows TerminalMobaXterm等现代终端模拟器,通过SSH连接青云的系统终端。

下载内核源代码压缩包

首先,请前往华为的技术支持网站,获取您所需版本的Atlas 200软件包Atlas-200-sdk_<版本号>.zip目前支持6.0.021.0.4.9版本的SDK

⚠️注意

软件包分为商业版社区版

若使用商业版,需要注册成为华为的商用客户才能获取软件包

  1. 请小心地将青云开发板上的Atlas 200 AI加速模块拆下,模块背面右下角的贴纸处记录了产品的序列号——从第一行“SN:”字样后开始,到第三行结束,共16个字符。
  2. 获取序列号后,请根据华为网站的引导,使用产品序列号注册成为华为的商业用户。您注册成功后即可获得软件包等资料的下载权限。

成功下载Atlas-200-sdk_<版本号>.zip压缩文件后,将其中的Ascend310-source-minirc.tar.gz压缩包拷贝到本工具的packages/目录下,内核源代码压缩包准备完毕。

下载交叉编译工具链

⚠️注意
仅供交叉编译参考。若是在开发板系统上直接编译,则不用执行此步骤。

请前往该网站获取交叉编译工具链的压缩包gcc-linaro-5.4.1-2017.05-x86_64_aarch64-linux-gnu.tar.xz,然后将压缩包直接放置在packages/目录下。
如果下载出现异常,可以使用国内天翼云盘链接下载:

https://cloud.189.cn/web/share?code=niquM3u6N3Ar(访问码:gjk1)

预设的内核配置

我们为开发者提供了一些预设好的内核配置文件。configs/目录下准备了适用于特定版本SDK的,开启了不同功能的内核配置文件(版本号参照Atlas-200-sdk_<版本号>.zip,尚未测试版本号不匹配的情况)。
configs/Ascend310_21.0.4.9/universal/mini_defconfig配置文件,它适用于21.0.4.9版本的SDK,且提供了最通用的设备驱动支持。详情请见对应配置文件旁的README.mduserfilelist.csv

运行内核编译脚本

scripts/build_kernel脚本用于配置并编译开发板的Linux系统内核。

⚠️注意
脚本默认处于交叉编译模式。如需在开发板系统上直接编译,请先打开脚本文件,修改配置:

NEED_CROSS_COMPILE=false # 关闭交叉编译模式。若在x64 Linux服务器上编译则无需关闭

在仓库根目录下直接执行脚本,详细情况请阅读下面的脚本说明

./scripts/build_kernel

📘脚本说明

  1. 脚本执行时会首先进行初始化。初始化时脚本将查看系统源代码、编译工具链等文件是否存在,最终相应文件会被解压至新建的build/目录中。

  2. 初始化完毕后,脚本会在终端中输出操作菜单。用户键入相应的菜单项数字后,回车即可执行。

  3. 首次运行脚本时,建议先选择执行展示编译内核前需要安装的依赖,安装相关依赖。依赖满足后,建议执行清空编译结果后,重新配置并编译内核,完整走一遍内核编译的流程。

  4. 在进行内核配置时,用户需要选择一个预设的内核配置方案。之后用户可以直接按照这个配置方案编译内核,或者基于该配置进行个性化修改。

  5. 编译完毕后,内核镜像与系统模块将输出至build/source/output/目录,同时也会生成用于驱动打包的build/source/repack/目录。编译过程中生成的其它文件位于build/source/kernel/out/目录。

  6. 清空编译结果会删除build/source/output/build/source/kernel/out/目录,但并不会修改build/source/repack/目录。在“更新配置文件”和“重构驱动包”时请特别注意该目录下文件的修改日期,不要将旧文件误打包了。

更新配置文件

重构驱动包

制作启动镜像包

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简介

🛠️ 定制青云开发板系统,并将系统镜像烧录至SD卡的脚本工具。基于华为Atlas 200 AI加速模块的开发文档。 展开 收起
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