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。
The embedded microprocessor PXA255 and its integrated LCD controller are introduced,the basic principle of TFTLCD 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,the display drive can be used in not only the building automation system,but also the other embedded systems with a few changes.
出处
《计算机工程与应用》
CSCD
北大核心
2007年第7期101-103,107,共4页
Computer Engineering and Applications
基金
湖南省教育厅科研项目(the Research Project of Department of Education of Hunan Province
China under Grant No.02B026)
