键盘显示控制芯片ZLG7289A在仪器仪表中的应用  

Application of key and display chip ZLG7289A in the instrument and meter

作　　者：李海真[1] 孙运强[1] 王晨光[1] 

机构地区：[1]中北大学信息与通信工程学院,太原030051

出　　处：《国外电子测量技术》2008年第2期58-60,共3页Foreign Electronic Measurement Technology

摘　　要：键盘及显示电路是现代仪器仪表中的重要组成部分,主要用于完成各种参数的设置和数据显示,本文对仪器仪表中普遍使用的键盘显示接口技术进行了分析,提出了一种基于可编程键盘显示专用芯片ZLG7289A实现键盘显示的设计方法。文中简要介绍了ZLG7289A的功能、结构和工作原理,并通过实例从硬件和软件两方面阐述了其在仪器仪表的应用。该设计具有接口简单,外围元件少、编程容易等特点,在仪器仪表控制系统中具有广泛的应用前景。Key and display circuit is the important component part of instrument and meter, can accomplish parameter setting and data displaying, this paper analyzes the technology of Key and display interface, and provides a method of key and display operating with programmed and specialized chip ZLG7289A. In this paper the functions, configuration and operation principium of ZLG7289A are presented , and application in instrument and meter field from hardware and soft ware via example is elaborated. Because of the simpleness, credibility, easy programming and low cost, the design has a broad application foreground in various industry control system.

关 键 词：ZLG7289A 键盘显示 仪器仪表 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]