大屏幕LED显示控制系统的设计  

Design of Large LED-screen Display Control System

作　　者：赵才荣[1] 丁铁夫[1] 郑喜凤[1] 刘高霞[1] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所

出　　处：《液晶与显示》2005年第6期564-569,共6页Chinese Journal of Liquid Crystals and Displays

基　　金：国家科技创新基金资助项目(No.020262112(0540))

摘　　要：根据LED显示模块结构特点,结合CPLD技术实现LED屏的动态扫描显示,设计了一种大屏幕LED显示控制系统。该系统以DSP芯片TMS320LF2407为控制核心,完成与PC机的通讯;在可编程逻辑器件EP1K30辅助下,同时完成数据存储与更新、显示画面的刷新、动画处理、循环显示等。利用Visual C++,编写了上位机的用户界面程序以及与下位机的串行通信程序。该系统能脱机和连续长期运行,成本较低。According to the characteristics of the LED module structure, combining the technology of CPLD,the dynamic scanning display of the LED display screen was realized. A kind of large LEDscreen display control system was designed. Under the control of core chip TMS320LF2407,the system finished the communication with the PC; at the same time, with the help of programmable logic device EPIK30, the control system finished the data store and update,cartoon processing, circulation showing etc. User interface and serial communication program were written with Visual C＋ ＋. This system can work in off-line state and run for a long time in succession, and the cost is relatively lower.

关 键 词：LED显示 动态扫描显示 串口通信 

分 类 号：TN873.92[电子电信—信息与通信工程]