基于SEP4020的嵌入式Linux Framebuffer驱动程序  

Embedded Linux Framebuffer Driver Based on SEP4020

作　　者：程杰[1] 方攀[1] 张黎明[1] 

机构地区：[1]东南大学电子科学与工程学院

出　　处：《电子技术（上海）》2009年第10期1-3,共3页Electronic Technology

摘　　要：论述了Linux中基于Framebuffer的LCD驱动程序的设计方法,主要介绍Framebuffer原理以及Linux操作系统中LCD驱动程序的接口函数。针对具体硬件平台和LCD液晶屏编写了相应的驱动程序,并介绍了在Linux操作系统中使用Framebuffer设备的几种常见方法。硬件平台采用东南大学基于ARM内核研发的SEP4020嵌入式微处理器,软件平台采用Linux2.6.16内核,并最终实现了SEP4020处理器在Linux平台的Framebuffer驱动。In this paper, a method is described to design a Linux LCD driver based on Framebuffer. The Framebuffer theory and the interface function for LCD driver in Linux are introduced. For the specific hardware platform and LCD screen corresponding drive program is written. This paper also presents some common ways to use the Framebuffer for controlling LCD in Linux. SEP4020 embedded microprocessor based on ARM core is used as the hardware platform, and the software platform employs Linux 2.6.16, finally the Framebuffer drive of SEP 4020 in Linux is accomplished.

关 键 词：LINUX驱动程序 FRAMEBUFFER LCD SEP4020 

分 类 号：TP332[自动化与计算机技术—计算机系统结构] TP316.7[自动化与计算机技术—计算机科学与技术]