AT89C52控制的8×8点阵LED字符显示器的设计

JIMI

论文编号ZXX259  论文字数:7797,页数:25
 摘  要：本系统设计思路是：利用单片机对整个系统进行总体控制，进行显示所要显示的字符。显示方式分为三种：逐字显示、上滚显示、左滚显示，其中显示字模数据由单片机输入显存，点阵的点亮过程有程序控制，由驱动电路完成，点阵采用单色显示，该显示器电路的特点是：点阵的动态显示过程占用时间比较短，亮度比较高，而且亮度可以改变电阻进行调节。
关键词：LED点阵；嵌入式系统；单片机；显存；

Abstract：This design intent to take 8052 single chip to control entire system generally. The display word-module data is input by single chip to display memory. The lightening process is accomplished by other circuit ( programme  and  drive) automatically.  Dynamic display process engross a little of the time . The lighting is able to be adjusted by changing the resistance . The lighting ways: single , rolling from down , rolling from right.
 Key words：LED lattice；embedded system；single chip；display memory