说明：  此书为华恒试验箱实验指导书和HHARM9-EDU 软硬件系统概述，操作指南。开发环境为uclinux,指导书中详细介绍了开发环境的建立及一些驱动程序代码。
(This book for guidance华恒experimental chamber HHARM9-EDU book and an overview of hardware and software system, operational guidelines. Development environment for uclinux, guide book detailing the establishment of development environment and some driver code.)