节电控制装置中键盘显示电路设计  

Design of Keyboard and Display Circuit in Energy-saving Equipment

作　　者：刘志峰[1] 冯振伟[1] 李杨[1] 杨文通[1] 

机构地区：[1]北京工业大学机械工程与应用电子技术学院,北京100022

出　　处：《微计算机信息》2007年第04Z期97-98,24,共3页Control & Automation

基　　金：北京市自然科学基金重点项目(4031001-1)

摘　　要：本文针对节电控制系统键盘和显示电路,简要介绍了键盘及LED驱动芯片ZLG7290的功能,结构和工作原理,给出了单片机与ZLG7290的硬件接口电路设计,并采用汇编语言实现了单片机对ZLG7290的读写,其设计简单可靠,编程容易,成本低,在各种工业控制系统中具有广泛的应用前景.　The functions,configuration and principium of the keyboard and led driver ZLG7290 are introduced in this paper for keyboard and led circuit design,which based on a kind of energy-saving equipment .It also presents the interface of the Single-chip and ZLG7290 and implements the read-write procedure by programming with assemble language. 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：ZLG7290 I2C 单片机 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]