基于单片机的LED显示屏控制系统的解决方案  

The Solution of LED Display′s Control System

作　　者：邓宏贵[1] 彭友斌[1] 李志坚[1] 郭晟伟[1] 

机构地区：[1]中南大学物理学院,长沙410083

出　　处：《光电子技术》2007年第3期203-205,211,共4页Optoelectronic Technology

摘　　要：介绍了单片机DS89C 420与PS/2键盘的软硬件接口技术,分析了硬件汉字库的原理与制作方法,讨论了中文输入法的实现过程,提出了一种基于单片机的LED显示屏控制系统的解决方案。实践证明,基于该方案设计的控制系统能够基本满足显示屏用户的文本发布需求。文章给出了系统具体的硬件设计方案和软件流程图。This article describes the technology of software and hardware interface between DS89C420 and PS/2 keyboard,and analyzes the principle and production approach of Chinese characters library and discusses the input method of Chinese.A method to control the LED display based on MCU is provided.It is proved that the control system can satisfy the users′ requirement to promulgate test information.The detail hardware scheme and software flow is followed.

关 键 词：DS89C420 PS/2键盘 硬件汉字库 发光二极管显示屏 

分 类 号：TN27[电子电信—物理电子学]