| 基于嵌入式Linux的矩阵键盘设计与实现 |
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| 引用本文： | 李杰,曹宇,朱坚,王超. 基于嵌入式Linux的矩阵键盘设计与实现[J]. 现代电子技术, 2006, 29(24): 81-83 |
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| 作者姓名： | 李杰 曹宇 朱坚 王超 |
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| 作者单位： | 1. 东南大学,国家专用集成电路系统工程中心,江苏,南京,210096
2. 上海计算机软件技术开发中心,上海,201114 |
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| 摘 要： | 提出一种基于嵌入式Linux的矩阵键盘实现方案。分别从硬件和软件的角度详细介绍该方案的实现过程,并介绍嵌入式Linux下字符设备驱动程序的编写。针对实际应用的需要设计实现了对长按键和多键齐按等功能的支持。此方案已经用于PDA等多种手持嵌入式设备中。
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| 关 键 词： | 矩阵键盘 嵌入式Linux 字符设备驱动 多键齐按 |
| 文章编号： | 1004-373X（2006）24-081-03 |
| 收稿时间： | 2006-06-21 |
| 修稿时间： | 2006-06-21 |
Design and Implement of Matrix Keyboard Based on Embedded Linux |
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| LI Jie,CAO Yu,ZHU Jian,WANG Chao. Design and Implement of Matrix Keyboard Based on Embedded Linux[J]. Modern Electronic Technique, 2006, 29(24): 81-83 |
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| Authors: | LI Jie CAO Yu ZHU Jian WANG Chao |
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| Affiliation: | , 1. National ASIC Systenx Engineering Center, Southeast University, Nanjing, 210096, China 2. Shanghai Computer Software Technology Development Center, Shanghai, 201114, China |
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| Abstract: | This paper proposes a scheme of matrix keyboard based on embedded Linux.It introduces the implementation process of the scheme from the points of hardware and software,and also describes how to write character device driver program.According to the need of application,the scheme supplies with many functions to support pressing the button for long time and pressing several buttons concurrently.At present,the scheme has been used in several handed embedded devices such as PDA. |
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| Keywords: | matrix keyboard embedded Linux character device driver pressing several buttons concurrently |
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