U_BOOT的官方文档，自己整理自ELDK的网站，希望能给嵌入式开发的朋友们带来帮助 -U_BOOT official documents, organize their own self-ELDK the website, hope that they will be embedded development friends help

基于busybox-1.13.1的根文件系统制作，在arm9开发板中调试成功，附有配制过程的详细说明文档。-Busybox-1.13.1-based root file system of production, in arm9 debug development board in the success of the process with the preparation of a detailed descr iption of