开关阵列状态识别的单片机实现  

Realization of Switch Array State Recognition by Chip Microcomputer

作　　者：陈建明[1] 郭世明[1] 田庆华[1] 

机构地区：[1]西南交通大学,四川成都610031

出　　处：《电子工程师》2003年第5期36-37,43,共3页Electronic Engineer

摘　　要：应用非编码键盘扫描方式实现了开关阵列的单片机设计 ,即键盘重键的识别和处理。利用高阻态输出封锁非扫描行 (列 )的方法建立电路模型 ,介绍了单片机系统的硬件接口及原理 。In this paper, design of the switch array (namely, the recognition and performing of the repetitive key of keyboard) with chip microcomputer is realized by using the scan of non code keyboard. At the same time, the circuit is modeled using the high resistance output to confine non scan row (column), and the hardware interface of chip microcomputer and its principle are introduced, and also, the communication between the system and its master machine and its software realization are presented.

关 键 词：单片机 测控系统 开关阵列 非编码键盘 状态识别 电路模型 硬件接口 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构] TP334.23[自动化与计算机技术—计算机科学与技术]