1、 1 摘 要 本设计制作出一个三维立体显示图案的 LED 光立方。本产品不仅可以像发 光二极管点阵一样显示平面的静态或动态画面，还可以显示立体的静态或动态 画面，打破了传统的平面显示方案。同时又增加了显示的花样和立体图案显示 效果，可以广泛用于传媒信息显示和各种装饰显示，为将来显示技术的进步和 发展指导了方向，光立方显示比发光二极管点阵更具有视觉效果，而且画面图 案更加非富多彩。 本设计是采用 AT89S52 单片机为核心控制器，八 D 边沿触发器（三态） 74LS573 扩展 I/O 口， 完成硬件电路设计。 通过软件编程控制数据下载到单片机 完成设计图案的显示。软件采用自上而下的模块化设计
2、思想，使系统朝着分布 式、小型化方向发展，增强系统的可扩展性和运行的稳定性。 关键词: 52单片机;74HC573锁存器;8*8*8LED显示; 2 ABSTRACT This design produced a three-dimensional pattern of the LED light cube. This product can not only like a light-emitting diode dot matrix display plane static or dynamic screen can also display three-dimensional stati
3、c or dynamic images，and to break the traditional program.While increasing the display patterns and three-dimensional effect can be widely used to display and decorative display for future progress and development to guide the direction， light cube display more visual effects than the light-emitting
4、diode dot matrix，and the picture is more rich colorful. With a combination of graphics and characters more perfect display characteristics. The design is AT89S52 MCU core controller,eight D edge flip-flop 74LS574 (tri-state) expansion I/O port completion of the hardware circuit design. Programmed by
5、 software to control the data is downloaded to the MCU to complete the designs of the show. This design software is a top-down modular design,the system moving in the direction of distributed，small development,enhance the stability of the systems scalability and running. KEY WORDS: 52KEY WORDS: 52single-chip;74HC573latch;8*8*8 3DLED; 3 目录 1、设计要求与方案1 1.1 设计目的1 1.2 设计要求1 1.3 设计思路1 1.4 设计的总体要求及方案选择2 2、工作原理3 2.1 模块的简介3 2.2 3DLED 光立方工作原理4 3、方案选择5 3.1 电源的选择5 3.2 3D 显示核心控制器5 3.3 I/O 口扩展芯片的选择6 3.4 LED 发光显示二级管
