一线AD键盘设计  

One line AD keyboard design

作　　者：杨红[1] 李生明[1] 冯如进 YANG Hong;LI Shengming;FENG Rujin(College of Electromechanical Engineering, Qingyuan Polytechnic, Qingyuan 511510,China)

机构地区：[1]清远职业技术学院机电与汽车工程学院,广东清远511510

出　　处：《清远职业技术学院学报》2017年第6期36-38,共3页Journal of Qingyuan Polytechnic

摘　　要：在单片机系统设计时,键盘是经常用到的输入设备,传统的矩阵式键盘端口占用量大,本文将键盘与AD转换器结合,提出了一种基于AD转换的一线AD键盘设计方法,在系统开发时,它只需占用单片机的一根IO端口,相比传统键盘具有明显的优势。In the single-chip microcomputer system design,the keyboard is often used in input devices,the traditional ma原trix keyboard port large footprint,this paper combines the keyboard and AD converter,this paper proposes a first-line AD key原board design method based on the AD conversion,in the system development,it will only take MCU one IO port,compared with the traditional keyboard has obvious advantages.

关 键 词：一线键盘 单片机 ADC 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]