本 科 生 毕 业 设 计 (论 文) 题目：基于单片机的可控制的 LED 跑马灯设计摘要:近年来随着计算机在社会领域的渗透, 单片机的应用正在不断地走向深化，同时带动传统控制检测日新月益更新。在实时检测和自动控制的单片机应用系统中，单片机往往是作为一个核心部件来使用，仅单片机方面知识是不够的，还应根据具体硬件结构，以及针对具体应用对象特点的软件结合，以作完善。单片机最小系统是在以 STC89C52RC 单片机为基础上扩展，使其能更方便地运用于测试系统中。本设计主要在单片机上扩展 I/O 口，复位电路，晶振电路，LED 显示电路并写好底层程序，做出能应用于跑马灯的最小系统。关键词：最小系统，STC89C52RC, 跑马灯Abstract: With the infiltration in the social field of the computer in recent years, the application of the one-chip computer is moving towards deepening constantly, drive tradition is it measure crescent benefit to upgrade day to control at the same time. In measuring in real time and automatically controlled one-chip computer application system, the one-chip computer often uses as a key part, only one-chip computer respect knowledge is not enough, should also follow the structure of the concrete hardware , and direct against and use the software of target’s characteristic to combine concretly, in order to do perfectly. The smallest system one chip computer is in expands at the base of STC89C52RC one chip computer，make it used more convient in the test system. This design mainly expands I/O in the take on chip computer, reset circuit, crystals circuit, the LED display circuitand writes the first floor procedure.Make for scrolling minimum system.Keyword：minimum system, STC89C52RC, scrolling目录1.绪论..................................42.电路设计方案及功能分析..................................52.1 设计目的....................................................52.2 设计要求....................................................52.3 ...
