LED点阵显示器作为一种新兴的显示器件,是由多个独立的LED发光二极管封装而成。
本文介绍了基于单片机(89C51) 的一种8×8 LED 汉字显示屏的设计与制作过程,内容包括 LED 汉字显示屏的硬件电路、PCB 设计、程序设计与调试等方面,涉及到单片机电子产品设计与制造过程中的各个环节。
以8×8LED点阵显示器，单片机89C51作控制器，探讨简单的汉字、英文字母和动态图象显示技术。
为阐明用单片机控制双色显示屏的方法，对LED显示模块单元如何进行信号控制及信号传输中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用电路可大大减少CPU 的辅助时间，提高数据的发送速度。
关键词：LED、驱动电路、单片机
Abstract
LED dot matrix display as a new display is LED by a number of independent light-emitting diode package from.
In this paper, Introduced a simple 8 × 8 LED display based on single-chip microcomputer (89C51) of Chinese characters design and production process, including character LED display hardware, PCB design, programming and debugging, etc., related to a single machine design and manufacture of electronic products in all aspects of the process.
Use 8 × 8LED dot displays, for single-chip controller 89C51 explore simple Chinese characters, English letters and the dynamic image display technology.
To clarify the use of single-chip dual-color display control method, LED display module unit how to signal control and signal transmission in the study of driver issues.
Discussion of the single-chip control system to send the issue of critical data, results show that the parallel data input, serial output data and clock synchronization circuits dedicated to significantly reduce the CPU support time and increase the speed of data sent.
