AT89C52控制的8×8点阵LED字符显示器的设计
论文编号:DZXX259 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
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