基于嵌入式Linux的矩阵键盘设备驱动的设计

Design of Matrix Keyboard Device Driver Based on Embedded Linux

主要针对嵌入式系统的键盘驱动的特点,以Intel PXA255处理器为核心,采用嵌入式Linux操作系统,设计了基于行列扫描的键盘驱动程序,解决了防抖动及重键问题。驱动开发完成后,通过测试,结果证明驱动程序工作高效、稳定。

Keyboard driver based on ranks scan is designed by using embedded Linux operating system.The feature of embedded system keyboard driver is considered and the Intel PXA255 processor is used as the core of the design.The problem of jumping and multi-key is resolved.The test results prove that the driver is efficient and stabile.