摘要
设计了一种彩色点阵LED大屏幕的控制器,该控制器采用单片机读取存储在SD上的点阵数据文件,按帧串行地输出到LED控制芯片并刷新LED屏幕显示。该控制器能够存储并动态显示灵活多样的文字或者动画,具有性价比高、体积小等优点。
A controller for driving color LED display is designed in this paper. This LED controller reads dot matrix data storied in SD card, sends to LED control chip in series by frame, and refreshes the LED to display. This LED controller can store and display character or animation, with high performance price ratio and small volume.
出处
《微型机与应用》
2014年第18期29-31,34,共4页
Microcomputer & Its Applications
基金
国家自然科学基金项目(51167004)
广西自然科学基金项目(2013GXNSFBA019250)
