本光盘提供了 嵌入式系统一些通用模块源代码，比如 键盘扫描器，显示器接口，计量器和输入输出，大部分代码是用可移植的C语所写。-the CD provided some common embedded system module source code, for example, the keyboard scanner, display interface, metering and input and output, with most of the code is portable C la