基于ARM的交通诱导屏脱机控制卡的设计

Design of an off-Line Control Card for Traffic Guiding Display Based on ARM

为解决LED显示屏视频控制卡不能脱离PC机独立工作的局限性,设计了一种交通诱导屏脱机控制卡.系统以ARM7芯片S3C44B0X为控制核心,完成与PC机的100M UDP网络通信及显示信息的存储和更新;在FPGA的辅助下,采用双体RAM显示控制实现显示屏的动态扫描和刷新.该系统在实际的应用中得到验证,取得了良好的效果.

To resolve the disadvantage of video control card for LED display screen not working well independently of PC, an off-line Control Card for Traffic Guiding Display is designed, in which ARM7 core chip S3C44B0X is used to accomplish 100M UDP network communication with PC, display-data storage and update; and with the assistant of FPGA, dynamic scanning and renovation of the screen are realized by method of couple RAM control. This system has been testified in practical application and fulfill good performanc...