文档介绍：摘要
LED是英文light emitting diode(发光二极管)的缩写。由镓(Ga)与***(As)、磷(P)、氮(N)、铟(In)的化合物制成的二极管,当电子与空穴复合时能辐射出可见光,因而可以用来制成发光二极管。在电路及仪器中作为指示灯,或者组成文字或数字显示。并且不同的元素化合形成的二极管会发出不同颜色的可见光。LED行业发展迅速并已成为一个具有一定规模的新兴产业,而且从总体上来看,宏观环境也非常有利于LED行业的发展,可以说LED行业前景广阔,市场潜力巨大。
本设计实现了基于单片机AT89C51的16×64 LED点阵的图形的滚动显示。本文主要介绍了LED点阵显示的硬件电路的设计思路以及各个部分的功能及原理和相应程序设计的设计思路和功能。该设计使用取模软件对所要显示的图形进行取模,采用C语言编写其显示程序,利用KeilC集成开发平台生成HEX文件,在Proteus中对硬件电路的时钟、复位、驱动、16×64点阵进行设计并通过译码器等与AT89C51芯片连接,进而对系统进行仿真调试。本设计具有使用性强,操作简单易实现等优点。
关键字:单片机,二极管,LED点阵,图形显示,硬件电路
The Design of LED Mobile Displayed Based on Single-Chip puter
ABSTRACT
The LED is light emitting diode. Diode is made of gallium (Ga) and arsenic (As), phosphorus (P) and nitrogen (N), indium (In) elements, when electrons and holes integrate can radiate light, thus it can be used to make light emitting diode. In the circuit and equipment it act as light, or display the words or figures. And if the diode has different elements it will emits different colors of visible light. LED industry has developed rapidly and has became a new industry which has a certain scale , and on the whole, macro environment is beneficial to the LED industry develop, so the LED industry has prospect, huge market potential.
This design has realized scroll of graphics on 16 x 64 LED which based on AT89C51. This article mainly introduced the he function and principle of hardware circuit of LED dot matrix display, each part and the design idea and function of corresponding design using the modulus software to get the model of graphics, using C language to write the display program, HEX file generated by KeilC integrated development platform. The clock, reset, drives, 16 ×64 LED dot matrix of hardware circuit will be designed and connect with AT89C51 in the Proteus, and then do system simulation and debugging. This design has the advantage of usability is strong, easy to realize operation etc.
KEY WORDS: Single chip puter,Diode,LED dot matrix ,Graphic display,
Hardware circuit