基于Cortex-M3的异步LED显示控制系统设计

Design of Asynchronous LED Display Control System Based on Cortex-M3

以Cortex-M3为核心,CPLD芯片为扫描控制单元,设计完成异步LED显示屏系统。该系统通过以太网实现与上位机的通信,具有存储及自动播放的能力,能够将上位机发送的内容保存在存储芯片内,并将存储的内容显示在LED屏上,实现具有功能强大、维护方便、画质稳定清晰的异步LED显示屏。

This paper designs a new asynchronous LED display control system based on ARM and CPLD, the core of the system is Cortex-M3, CPLD is the scan control unit, the communication with the PC is accomplished by the Ethemet. It can storage and play automatically, the contents of the host computer can be stored in Flash, the contents can be displayed on the LED screen. The system provides crystal clear and stable picture, and can be maintained conveniently.