一种实用键盘/显示电路的设计与实现

Design & Implementation of Applied Electrical Circuit on the Keyboard/Display

结合一项开发工作 ,对常规的键盘 /显示器接口电路做了细致分析 ,采用Intel 82 79实现了键盘 /显示器的扩展。该接口电路设计 ,结构简单 ,稳定性、可靠性较好 ,编程容易 ,具有一定的推广价值。

This paper analyzes an interface of keyboard and LED and recommend a way of designing an interface circuit of keyboard and LED with 8279.It is an advantage of simple structure,strong stability,high raliability and easy programming.