U-Boot源码, 开发板常用的BOOT，能兼容大部分小机。-U-Boot source code, development board commonly used BOOT, compatible with the majority of small aircraft.

上传的是uboot的源码，经过本人修改，保证能编译通过的源码。且带有uboot详解质料（uboot详解.pdf），适合新手学习，移植。-Upload uboot source code to ensure that the source code can be compiled by after I modify. And with the uboot Detailed material (uboot Detailed. Pdf), suitable for novice learning t