摘要
概述了PS/2键盘/鼠标的原理,论述了一种在单片机控制下,基于RS-485电平与TTL电平转换,具有本地及远程输入能力的多键盘/鼠标系统,并给出了电路原理图和软件流程图.本系统可用于组建多媒体会议室或教室,与其它实现方法相比,可以实现低投入、简单的安装和维护.
The principal of PS/2 keyboard and mouse is described, and a new design is proposed to implement a multi-keyboard and mouse system with local and remote input. And the system is controlled by single-chip microcomputer and based of transforming between RS-485 level and TTL level. Then the circuit diagram and the flow diagram are presented. The system can be used to equip a multimedia assembly room or classroom,and by contrast with other implementations, some characters such as simply setting and maintenance are (exhibited) in the system.
出处
《西安工程科技学院学报》
2004年第2期164-168,共5页
Journal of Xi an University of Engineering Science and Technology
