Design of LCD Display Drive Based on PXA255 Microprocessor

Computer Engineering and Applications ›› 2007, Vol. 43 ›› Issue (7): 101-103.

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Design of LCD Display Drive Based on PXA255 Microprocessor

Received:2006-08-28 Revised:1900-01-01 Online:2007-03-01 Published:2007-03-01

基于PXA255微处理器的液晶显示驱动设计

姚胜兴

湖南工学院电气与信息工程系

通讯作者: 姚胜兴

Abstract

Abstract: The embedded microprocessor PXA255 and it’s integrated LCD controller are introduced, the basic principle of TFT-LCD is also analyzed. Combining with their characteristics and the timing sequence, the hardware drive interface circuits are designed, then making Linux as embedded operation system, the correspond drive software is designed. As the result, the clear and stable pictures can be shown on the LCD. Because the software can be well transplanted, thus the display drive is the same with not only the building automation system, but also the other embedded systems with a few changes.

Key words: PXA255, embedded system, LCD, display driving

摘要： 介绍了嵌入式微处理器PXA255及其集成的LCD控制器，分析了TFT-LCD的基本原理，结合它们的特点和工作时序，设计了LCD的硬件驱动接口电路，以Linux为嵌入式操作系统，设计了相应的驱动程序，能显示清晰稳定的画面，由于Linux平台下的驱动程序具有很强的移植性，因而该显示驱动不仅适用于楼宇自动化系统，略作变化后还可应用于其它嵌入式系统中。

关键词: PXA255, 嵌入式系统, LCD, 显示驱动

姚胜兴. 基于PXA255微处理器的液晶显示驱动设计[J]. 计算机工程与应用, 2007, 43(7): 101-103.

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Design of LCD Display Drive Based on PXA255 Microprocessor

基于PXA255微处理器的液晶显示驱动设计

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