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文章 2022-12-14 来自：开发者社区

鸿蒙移植i.mx6ull(四) 编译Liteos-a与APP（下）

3.2 编译hello程序使用Clang时，我们要指定很多参数：为哪类CPU编译程序(ARM还是Risc-V)，CPU架构是什么(cortex A7还是cortex A15)，头文件/库文件在哪？在为Liteos-a编译程序时，以hello程序为例，可以执行以下命令：cd /home/book/doc_and_source_for_openharmony/apps/hello clang -.....

文章 2022-12-14 来自：开发者社区

鸿蒙移植i.mx6ull(四) 编译Liteos-a与APP（上）

1. 下载源码并编译1.1 在Ubuntu中安装开发环境确保Ubuntu能上网之后，使用下面命令一键配置/初始化开发环境(其实就是安装tftp，nfs，vim等软件，此脚本只支持Ubuntu-16.04/Ubuntu-18.04)。注意：为了方便大家复制，这些命令写成了多行，你要把它们复制到记事本，合并成一行，注意空格：book@100ask: ~ $ wget --no-check-cert....

文章 2022-12-13 来自：开发者社区

嵌入式linux/鸿蒙开发板(IMX6ULL）开发（三十三）APP怎么读取按键值

1.APP怎么读取按键值APP读取按键值，需要有按键驱动程序。为什么要讲按键驱动程序？ APP去读按键的方法有4种：① 查询方式② 休眠-唤醒方式③ poll方式④ 异步通知方式通过这4种方式的学习，我们可以掌握如下知识：① 驱动的基本技能：中断、休眠、唤醒、poll等机制。这些基本技能是驱动开发的基础，其他大型驱动复杂的地方是它的框架及设计思想，但是基本技术就这些。② APP开发的基本技能：....

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