PC机键盘通信协议及其在单片机应用系统中的实现  

THE PC/AT KEYBOARD COMMUNICATION PROTOCOL & IT’S APPLICATION IN THE SINGLE CHIP MICROCOMPUTER SYSTEM

作　　者：张华[1] 吴斌[2] 刘晓明[2] 刘宗行[2] 王姮 

机构地区：[1]西南科技大学信息与控制工程学院,四川绵阳621002 [2]重庆大学电气工程学院,重庆400044

出　　处：《西南工学院学报》2001年第2期29-34,共6页Journal of Southwest China Institute of Technology

摘　　要：在单片机系统中 ,可能会用到标准的PC机键盘。标准PC机键盘有独立的微处理器 ,它与主控制器的通信必须遵守严格的通信协议及时序关系 ,所传送的数据也有严格的标准。本文对标准PC/AT键盘接口的通信协议及传输时序进行了研究 ,全面介绍了键盘扫描码、系统命令码及键盘响应码 ,解决了单片机系统中应用标准PC键盘的问题 。The standard keyboard of PC is often used on a single chip microcomputer system, which has the stand-along micro-controller. The keyboard's communication with the main controller must be conform to the protocol as well as the clock series, and the data being transferred has the strict rule. In this paper, we introduced the scancode、 system command code and acknowledgement code in detail, solved the problem of the application of PC keyboard on single chip microcomputer system through the study of the PC/AT communication protocol as well as clock series and gave the typical solution.

关 键 词：单片机 键盘 时序 通信协议 

分 类 号：TP334.23[自动化与计算机技术—计算机系统结构]