此为友善之臂micro2440开发板的使用手册，更新时间是2009年2月28日。,This is a friendly arm on the development board micro2440 user' s manual, update time is February 28, 2009.

此为友善之臂micro2440板的核心板原理图，更新时间是2009年2月28日。-This is a friendly arm of the core board micro2440 board schematic, update time is February 28, 2009.