本设计是要实现幻灯片放映功能，修改并融合了LCD单个图片显示程序和LED跑马灯程序，编写程序使LCD图片刷新和跑马灯同时运行，并且运行频率可以分别设定。-This design is to achieve a slide show function, modify and integration of the LCD picture display program and a single LED Marquee procedures, programming the LCD image to refresh and marquees run simultaneously, and the operating frequency can be set separately.