基于PS/2协议的条码扫描器与单片机接口设计  

Interface Design Between the Bar Code Reader and MCU Based on PS/2 Protocol

作　　者：李建国[1] 赵战民[1] 刘卿[1] 

机构地区：[1]石家庄经济学院信息工程学院,石家庄050031

出　　处：《微计算机应用》2008年第12期48-52,共5页Microcomputer Applications

基　　金：石家庄经济学院学生科技基金项目(第XY200708号)

摘　　要：基于对PS/2接口协议和条码扫描器输出数据格式的认识,从触发方式和接收方式两个方面详细分析了单片机读取条码数据的原理与实现方法,同时给出了扫描码与ASCII码的转换程序设计。在应用中,给出了条码扫描器与MCU的接口电路及通行方案,并介绍了单片机对条码数据识别系统一种典型应用方法。The PS/2 protocol and the data signal output style of bar code reader are discussed in this paper, On the basis of this, It detailed analyses the stripe code detect theory and realize methods of MCU in trigger mode and receive mode, also the design of conversion process between scanning code and ASCII code is given. In application, the circuit of interface and communication scheme between bar code reader interface and MCU are provided, It also introduces a typical utility of this system.

关 键 词：PS/2协议 条码扫描器 单片机 接口设计 

分 类 号：TP334.23[自动化与计算机技术—计算机系统结构] TP368.12[自动化与计算机技术—计算机科学与技术]