可编程键盘/显示器接口在建筑机械控制系统中的应用

Application of Programming Keyboard/CRT Interface in the Architecture Machinery Micro－ control System

本文通过在开发螺旋钢箍机的过程中，对多种键盘／显示器接口电路进行的分析，为读者推荐了一种用 8279扩展的较实用的键盘／显示器接口电路的设计方案。它具有结构简单、稳定性强、可靠性高、编程容易等优点 .

This paper analyzes a kid of interface of keyboard＆ LED through developing the helix steel band machine,recommends a way of designing an interface circuit of keyboard＆ LED.with 8279.It is an advantage of simple structure,strong stability,high accuracy and easy programming.