基于嵌入式Linux的矩阵键盘模块的设计  

Design of matrix keyboard device module based on embedded Linux

作　　者：傅超[1,2] 张昌华[1,2] 孟劲松[1,2] 

机构地区：[1]电子科技大学能源科学与工程学院,四川成都611731 [2]电子科技大学电力系统广域测量与控制四川省重点实验室,四川成都611731

出　　处：《微型机与应用》2012年第21期7-10,共4页Microcomputer & Its Applications

摘　　要：针对嵌入式系统的键盘驱动特点,以Linux 2.6.21内核为例,提出了一种基于嵌入式Linux的矩阵键盘的实现方案。介绍了矩阵键盘的结构及原理,设计了基于Platform机制的矩阵键盘驱动程序,并解决了按键去抖及重键问题。通过测试实践,证明该驱动程序工作高效、稳定可靠。Mainly considering the characteristics of the embedded system keyboard driver, taking Linux 2.6.21 kernel as the example, the paper proposes an implementation scheme of matrix keyboard based on embedded Linux. The structure and working principle of matrix keyboard were introduced and the matrix keyboard driver based on the platform mechanism was designed, which resolved the Problem of jumping and multi-key. Finally, the driver was proved to be efficient, stable and reliable by the test practice results.

关 键 词：嵌入式LINUX Platform机制 矩阵键盘 键盘驱动程序 

分 类 号：TP311[自动化与计算机技术—计算机软件与理论]