16X16点阵LED字符显示屏的设计毕业论文.doc

16X16 点阵 LED 字符显示屏的设计 1 16X16 点阵 LED 字符显示屏的设计摘要: 随着社会的发展,各式电子产品已在人们的日常生活中日渐占据主导地位,其中当然也包括信息的传播。现在,在一些单位内部、医院和公共场所的监控系统中,常要发布流动的信息。字符显示器为单位内部、公共场所的监控系统发布信息提供了完整的方案。通过指令方便地修改和显示中西文信息,真正实现了信息发布的无纸化。基于 STC89C52RC 单片机的该字符显示器采用单片机做控制器, 24MHZ 晶振, 16×16点阵 LED 显示器。关键词: 单片机 LED 点阵 16X 16 lattice LED character display design Abstract: With the development of society, various types of electronic products have already occupied the leading position day by day in daily life, among them certainly include the spread of information too. Now, inside some units, in the monitoring systems of the hospital and public place, often release the information of flowing. Have released information and offered the intact scheme in monitoring system by inside the unit , public field of the character display. Revising and showing the information of the Chinese and western language conveniently through the order, the ones that have really realized information issue are with no paper his character display of the opportunity puter adopts STC89C52RC puter todo the controller ,24 MHZ is shaken brilliantly ,16×16 lattice open LED display altogether . Keywords: Monolithic LED Lattice 16X16 点阵 LED 字符显示屏的设计 2 目录绪论 1 LED 显示器的基本知识……………………………………… 4 显示器的基础...........................................................................................4 ……………………………………………………………… 6. …………………………………………………………… 7 2 系统的设计…………………………………………………… 8 系统硬件的设计………………………………………………………… 8 系统主要程序的设计…………………………………………………… 8 列驱动电路……………………………………………………………… 9 行驱动电路……………………………………………………………… 10 3 调试及性能分析……………………………………………… 10 4 结论………………………………………………………….. 12 5 致谢…………………………………………………………… 13 6参考文献……………………………………………………… 14 附录 16X16 点阵 LED 字符显示屏的设计 3 绪论 1923 年,罗塞夫(lossen .o. w) 在研究半导体 sic 时有杂质的 p-n 结中有光发射,研制出了发光二极管(led : light emitting diode) ,一直不受重视。随着电子工业的快速发展,在 60年代,显示技术得到迅速发展,人们研究出 pdp 激光显示等离子显示板、 lcd 液晶显示器、发光二极管 led 、电致变色显示 ecd 、电泳显示 epid , 等多种显示技术。由于半导体的制作和加工工艺逐步成熟和完善,发光二极管已日趋在固体显示器中占主导地位。 led 之所以受到广泛重视并得到迅速发展