基于单片机的16x16点阵汉字显示屏设计研究

本篇论文介绍了基于单片机的点阵汉字显示屏的设计。LED 点阵显示屏作为一种新兴的显示器件，通常用来显示时间、速度、系统状态等。本设计采用了4个16×16点阵 LED 电子显示屏，并以美国 ATMEL 公司生产的40脚单片机80C51为核心。论文主要介绍了以80C51单片机为控制系统的 LED 点阵电子显示屏的动态设计和开发过程，通过该芯片控制一个行驱动器74LS138和八个列驱动器4049来驱动显示屏显示。该电子显示屏可以显示4个汉字，采用16块8 x 8点阵 LED 显示模块来组成4个16x16点阵显示模式，显示采用动态显示，使得文字能够实现静止显示方式。论文详细介绍了 LED 点阵显示的硬件设计思路、硬件电路各个部分的功能及原理、相应软件的程序设计，以及使用说明等。关键词：80C51单片机; LED; 点阵显示; 动态显示。 Through this thesis, the author aims to provide an in-depth overview of the design and development process for a LED dot matrix display screen based on a single-chip microcomputer (MCU). The LED dot matrix display screen, composed of multiple independent LED light emitting diodes, is capable of displaying numbers or symbols and is commonly used to display time, speed, and system status. The design discussed in this thesis utilizes a 40-pin single-chip microcomputer 80C51 produced by the American company ATMEL as the core control system for the LED dot matrix electronic display screen. The display screen is capable of showing 4 Chinese characters, achieved through the use of 16 8x8 LED display modules to form 4 16x16 dot matrix display modes. The display utilizes dynamic display to allow for static display of text. This thesis provides a detailed introduction to the hardware design concept of the LED dot matrix display, the functions and principles of various parts of the hardware circuit, the program design of the corresponding software, as well as usage instructions. Keywords: 80C51 microcontroller; LED; dot matrix display; dynamic display. Overall, this thesis serves as a comprehensive guide to the design and development of a LED dot matrix display screen based on a single-chip microcomputer, providing valuable insights into both the hardware and software aspects of the LED display technology.