基于FPGA的大屏幕扫描控制系统的设计  

Design of FPGA-based large screen scan control system

作　　者：李欢欢[1] 秦实宏[1] 

机构地区：[1]武汉工业学院电气信息工程系,湖北武汉430023

出　　处：《武汉工业学院学报》2010年第3期83-85,共3页Journal of Wuhan Polytechnic University

摘　　要：提出了一种基于FPGA可编程逻辑器件为设计平台的大屏幕显示系统的扫描控制技术。根据系统总体设计要求,分析了其系统的组成部分及原理。在系统中FPGA芯片作为LED显示屏的扫描控制芯片,负责从ARM接收数据信息并实现LED显示屏的刷新。在对系统功能进行分析后,对FPGA芯片的内部功能以模块化的方式进行了设计。本方案实现了LED屏的显示功能,解决了现有LED显示屏难以满足显示区域较大、显示内容切换频繁等方面的问题。并且可支持更大可视区域的稳定显示,存储更多显示内容。This paper presents a scan display control system of large screen based on programmable logic devices（FPGA）.First according to the requirement of the system general design,the structure and principle of the system are analyzed.FPGA serves as the scan controller of the LED display screen in this system.It is responsible for receiving and refreshing display datas from ARM.After analyzing the functions of the system,the FPGA chip＇s internal functions are designed by using modularization method.Then the LED display function is achieved.It resolves the problem that LED display screen can＇t be satisfied with the large display area and the frequently switched display data.This system can support the stability of larger viewable display area and store more display contents.

关 键 词：ARM FPGA 大屏幕 扫描控制器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]