基于USB的LED灯光控制器的设计与实现  

Design and Implementation of LED Lighting Controller Based on USB

作　　者：张道[1] 白瑞林[1] 庄车[1] 

机构地区：[1]江南大学智能控制研究所,江苏无锡214122

出　　处：《自动化仪表》2008年第5期38-41,共4页Process Automation Instrumentation

摘　　要：提出了一种在LED灯光控制领域实现同步和回放控制方式的解决方案,并在实际的LED灯光显示屏中得以实现。对其系统原理、软硬件结构进行了论述,重点分析了LPC2148 USB模块编程要点、块存储设备SD卡在同步和回放方式下的作用以及由CPLD和SRAM构建码流缓冲的大容量FIFO存储器的软件实现方法。测试结果表明,该控制器播放灯光景致流畅、易于操作,实现了一种新的LED灯光控制方式。The solution of synchronous and playback control mode in LED lighting control area is proposed; and its practical application on LED lighting display panel is implemented. The principle and hardware and software structure of the system are expounded ; the main points in programming of LPC2148 USB module, the function of block storage device SD card in synchronous and playback control mode, and the software implementing method of large capacity FIFO buffer structured by CPLD and SRAM are analyzed emphatically. The result of test illustrates that the controller plays the light scene smoothly under simple operation, and that it brings a new LED lighting control pattern to us.

关 键 词：通用串行总线 LED灯光 先进先出 安全数码卡 控制器 

分 类 号：TP332.3[自动化与计算机技术—计算机系统结构]