DE2开发板的全套资料，包含例程，原理图以及接口介绍文档等！-DE2 development board of the full set of information, including routine, schematic and interface descr iption documents and so on!

DE2开发板上LCD显示器的工作原理说明，包括显示器的真值表，以及字符库的调用方法。-DE2 development board and LCD display shows the working principle, including the display of the truth table, and character library method call.