【摘要】 阐述利用FPGA+51单片机核的方法实现32×32LED点阵书写显示屏的设计思想和系统实现。通过FPGA作为点阵LED显示屏控制器,高速扫描点阵屏,由光敏二极管电路制成感光光笔。系统实现当光笔触及LED点阵模块表面时,在显示屏上依次实现"点亮、划亮、反显、整屏擦除、笔画擦除、连写多字、对象拖移"等书写显示功能。更多还原

【Abstract】 This paper describes the basic idea and implementation about achieving 32 ×32 LED dot-matrix display with FPGA +51 microcontroller core.As a dot-matrix LED display controller,FPGA high-speed scanning dot matrix screen,and light pen is made by the light-sensitive photodiode.System achiveved when light brush contacts the LED dot matrix module surface,on the screen "light,zoned light,anti-evident,entire screen erase,stroke erase,write continuously more characters,object-drag" and other functions.更多还原