摘要
为了用较少单片机IO实现64键盘,通过对矩阵扫描阵列键盘进行优化,设计了一种基于逐行扫描的8×8阵列键盘系统,采用简洁的外部电路并只占用8+2个IO口实现64键盘,给出了详细的设计电路和软件代码,该设计可在10个IO以上的单片机上应用。
In order to realize 64 keyboard with less MCU IO,an 8×8 array keyboard system based on progressive scan is designed by optimizing the matrix scan array keyboard in this paper,in this system the 64 keyboard is realized by using a simple external circuit and only 8+2 IO ports,the detailed design circuit and software code are given,the design can be applied to more than 10 IO single-chip computers.
作者
方波
赵静
Fang Bo;Zhao Jing(Guangdong Mechanical&Electronical College of Technology,Guangzhou Guangdong 510515)
出处
《现代工业经济和信息化》
2020年第6期57-59,共3页
Modern Industrial Economy and Informationization
关键词
单片机
64键盘
简洁电路
扫描阵列
MCU
sixty-four keyboard
simple circuit
scanning matrix
