基于PXA270处理器的18象素位深显示驱动设计与实现  

Design and Realization of 18 Bit per Pixel Display Driver Based on PXA270 Processor

作　　者：王佳[1] 张哲[1] 胡晨[1] 

机构地区：[1]东南大学国家专用集成电路系统工程中心,南京210096

出　　处：《电子器件》2008年第2期420-422,共3页Chinese Journal of Electron Devices

摘　　要：基于PXA270处理器和WinCE操作系统,根据显示屏的时序特性,设计实现18bit/pixel,象素位深)存储模式下的LCD显示驱动。重点介绍了在帧缓冲区中采用18bit/pixel Packed(Bit Per Pixel_Packed,压缩象素位深)方式存储象素的处理方法,以及LCD控制器、屏接口硬件设计和显示驱动底层流程。实验表明,采用18bit/pixelP acked的存储方式画质显示更为鲜明,视频文件播放更加流畅,采用BMQ软件测试系统总分达到745分。Based on PXA270 processor and WinCE operating system, 18 bit/pixel LCD display driver is designed according to the LCD function timings. The emphasis is about 18 bit/pixel Packed mode in frame buffer. The paper also introduces LCD controller, LCD interface circuit and PDD driver. Experiment shows that under the 18 bit/pixel Packed mode,picture quality is more bright and video is more fluent and test score win 745 by BMQ.

关 键 词：嵌入式系统 LCD 显示时序 18 bit/pixel Packed 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]