PC机键盘剖析和应用

The Analysis and Application of the PC Keyboard

本文介绍标准微机键盘与PC机的接口规范 ,分析键盘的串口通讯协议和接口的工作时序 ,提出一种全新的利用键盘接口实现单片机系统和PC机通信以及单片机和PC机键盘通信的方案 ,并给出设计实例。

This paper introduces standard microcomputer keyboard and interface criterion of Personal Computer,analyzes serial port communication protocol of keyboard and the order of the working time of interface,puts forward a bran_new scheme that we can realize the communication between Single_chip Microprocessor system and Personal Computer and the communication between Single_chip Microprocessor and the keyboard of Personal Computer by using keyboard interface,and at the same time presents a correlative example of designing.The example provides an effective approach for the communication between exterior Single_chip Microprocessor system and Personal Computer and the communication between Single)chip Microprocessor and the keyboard of Personal Compute.