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

单片机键盘扫描程序，用单片机仿真软件通过，希望对大家有所帮助，谢谢大家的支持。-Single-chip scanner keyboard, through the use of single-chip simulation software, we would like to help, I would like to thank everyone' s support.