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。
This paper describes the basic idea and implementation about achieving 32 × 32 LED dot- malrix display with FPGA ＋51 microcontroller core. As a dot-matrix LED display controller, FPGA high-speed scanning dot malrix screen, and light pen is made by the light-sensitive photodiode. System achiveved when light brush contacts the LED dot malrix module surface, on the screen ＂light, zoned light, anti-evident, entire screen erase, stroke erase, write continuously more characters, object-drag＂ and other functions.
出处
《自动化与仪器仪表》
2010年第3期123-125,共3页
Automation & Instrumentation
