基于单片机控制的led点阵显示屏设计本科学位论文.doc

信号控制及信号传输的驱动问题进行了研究。讨论了单片机控制系统中关键的数据

处理以及发送问题，结果表明采用并行数据输入、串行数据及同步时钟输出的专业

电路可大大减少 CPU 的辅助时间，提高数据的发送速度。

上位机软件修改显示内容和显示效果等等。把图形内码存储在空闲的单片机程序存

储器空间。因为采用串行传输方式，使本系统的可扩展性得到提升，便于多个显示

单元的级联。

hold of method, show the mold piece how the unit carry on the row or column

signal control and signal to deliver to the LED medium of drove a problem

to research. Discussing a problem of singlechip in a control system how dose

it processing the key data and sending out,result indicate adoption parallel

communication, string data in line and synchronous the clock output's

appropriation electric circuit can reduce CPU assistant time consumedly, the

exaltation data sends out speed.

The LED display dynameic scan can show the way at the same time six 16*16

dot matrix chinese characters, and pc software can modify the content and

effect shows,and so on. IAP used in the application of programmable

Keywords; LED; Surface Mount Assembilies; Display; Driver; Scan