摘要
本设计以51系列单片机为主控芯片,通过行列驱动,控制16×16的双色点阵,构成了一款多色点阵显示系统。该系统可显示图形或文字,显示内容能够移动,并有三种不同颜色的变化。电路工作时采用了动态扫描的方式,行驱动使用了373锁存器,列驱动使用了154译码器和245驱动芯片,可以节省单片机I/O口。电路还有串行口通信功能,连接上位机进行实时显示信息更新。显示屏幕可以根据需要进行扩展。
This paper describes a display system, it takes 51 series microcomputer as the main control chip, to connect the row and column drivers, to control a 16 ？á16 double-color dot matrix screen. The system can display graphics or text, the display content can be shifted, and there are three different color to show. The circuit works with the method of the dynamic scanning, it takes 373 latch as line driver, 154 decoder and 245 driver chips as column driver, it can save the MCU I/O port.The circuit has the function of serial communication, it can connect PC to update the real-time display information.The display screen can also be extended.
出处
《自动化技术与应用》
2014年第12期109-113,共5页
Techniques of Automation and Applications
基金
江苏省高等学校大学生实践创新训练计划2012年立项项目(2012-2012JSSPITP4035)
关键词
51单片机
多色点阵
显示
串口通信
51 microcomputer
multicolor dot matrix
display
serial communication
