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.
出处
《电子器件》
CAS
2008年第2期420-422,共3页
Chinese Journal of Electron Devices
作者简介
王佳(1983-),女,硕士研究生,研究方向为微电子与固体电子学、嵌入式系统设计,wangjia_nj@163.com;
张哲(1976-),男,东南大学电子工程系博士研究生、讲师。