大容量图片的存储和访问  

Storage and Access of High-capacity Image

作　　者：周明明[1] 

机构地区：[1]惠州经济职业技术学院计算机系,广东惠州516057

出　　处：《现代电子技术》2011年第3期194-196,共3页Modern Electronics Technique

摘　　要：针对目前大部分企业运用AT89LV52来实现大容量图片存储和访问遇到的问题，提出一种可行的图片分割存储和访问方法。该方法通过扩展外部EPROM，正常显示数据容量超过8KB的图片。利用单片机的P3．4～P3．6口作为控制口实现512KB EPROM的片外寻址，并采用图片分割的方法，实现大容量图片的存储与访问。最后给出了C语言实现图片存储与访问的程序。A practical image segmentation storage and access method is proposed for the problem that most enterprises applied AT89LV52 to realize large capacity image storage and access. Through the expansion of external EPROM, the image da- ta which is more than 8 KB bytes can be normally displayed. The 512 KB EPROM-chip address access can be realized by using a microcontroller＇s Port 3.4 to Port 3.6, and the large capacity image storage and access can be achieved by applying image segmentation method. At last, C language is given to demonstrate the program of image storage and access.

关 键 词：51系列单片机 EPROM 大容量图片 存储 访问 

分 类 号：TN911-34[电子电信—通信与信息系统]