基于LPC2210的LED显示屏控制系统设计

当LED显示器采用8位/16位微处理器时,存在运行速度慢、寻址能力弱和功耗大等问题。文中采用32位ARM7微处理器LPC2210为核心控制器件,完成LED显示屏控制系统的设计。系统采用可扩展、模块化设计,以LED显示屏的显示电路和ARM微处理器控制电路为核心,并通过LPC2210微处理器自带的锁相环（PLL）,对系统进行倍频设计,有效提高了系统的可扩展性。通过对各模块的调度可方便实现点阵LED屏以双色、多样化方式显示各种信息,也可通过简单的级联实现屏的扩展。

Design of LED Display Control Systems Based on LPC2210

When the LED displays use 8/16 bit microprocessors,there are such problems as slow running speed,poor capacity of addressing and great power consumption.The paper adopts the 32 bit ARM7 microprocessor LPC2210 as the core control device to design the LED display control system.The system uses a scalable and modular design with the LED screen display circuit and the ARM microprocessor control circuit as the core,and frequency-doubles the system design through its own microprocessor LPC2210 PLL(PLL)to improve ...