说明：  本次实验使用 Redhat linux 9.0 操作系统环境安装 uCLinux 的开发库及编译器。新建一 个目录，编写 hello.c 和 makefile 文件。学习在 linux 下的编程和编译过程，以及 ARM 开发板的使用和开发环境的设置。下载已经编译好的文件到嵌入式控制器中运行。
(the experimental use Redhat Linux 9.0 operating system environment of the installation uCLinux development libraries and compilers. A new catalog, prepared hello.c and makefile document. Linux learning in the process of compiling and programming, and the ARM development boards for the use and development environment settings. Download has compiled documents to the embedded controller running.)