基于USB存储设备的显示信息配置方法及精简文件协议的实现  

Display Data Configuring Method Based on USB Storage Device and Realization of Simplified File Protoco

作　　者：邓春健[1] 李文生[1] 傅瑜[1] 吕燚[1] 黄杰勇[1] 

机构地区：[1]电子科技大学中山学院,广东中山528402

出　　处：《液晶与显示》2008年第5期633-637,共5页Chinese Journal of Liquid Crystals and Displays

基　　金：广东省科技计划项目资助(No.2007B010200032);中山市科技计划项目资助(No.20073A162);电子科技大学中山学院科研启动基金项目资助(No.2007YKQ14)

摘　　要：移动式LED显示器常由于场地、通信布线不便等原因不能方便、直接地通过PC传输显示信息,针对这类应用设计一种基于USB存储设备配置显示信息的软硬件接口方案,即先把在PC机编辑好的显示信息按一定的文件格式存储在USB存储设备,然后显示屏通过USB接口读取显示信息播放。然而要实现完整的文件协议却存在程序量过大,开发过程要编写、调试大量的代码等难点,文章通过对FAT文件系统剖析,提出几种简化或避开文件协议的数据存储与提取方法来解决这一问题。Display information can not be directly transmitted to mobile LED display from PC for location or inconvenient installation of communication wiring. A software and hardware interface scheme, which configures display data by USB storage device and aims at such applications, was designed. In this way, display data edited on PC was stored in USB storage device with a file storage format, then LED display attracts data from the device to display. However realization of the whole FAT file protocol needs so many programs that we must write or debug a lot of source codes. Methods of simplified file protocol for configuring display information were presented to settle that problem by analyzing FAT file system.

关 键 词：移动式LED显示器 显示接口 FAT文件系统 

分 类 号：TN873.91[电子电信—信息与通信工程] TP39[自动化与计算机技术—计算机应用技术]