摘要
LED显示屏正因其独特的优点而得到广泛的应用和飞速的发展。本文设计实现了一种基于AVR单片机控制的LED显示屏系统。它在硬件上主要由LED显示屏、Atmega88微处理器芯片、AT45DB041D片外存储器构成。在软件上主要由负责全局控制的主程序、接收串口数据的数据接收子程序和刷新LED显示屏信息的时钟中断子程序构成。
LED display screen is widely used and rapid development because of its unique advantages.In this paper,we design and implement an LED display system based on AVR microcontroller.It mainly includes LED screen,Atmega88 microprocessor,AT45DB041D memory in hardware and the main program,data reception subroutine,clock interrupt subroutine in software.
