基于FPGA的LED点阵显示控制方法  

Method of LED dot array display control based on FPGA

作　　者：蒋中荣 甘俊杰 欧伟明[1] JIANG Zhongrong;GAN Junjie;OU Weiming(College of Electrical and Information Engineering,Hunan University of Technology,Zhuzhou 412007,China;School of Shipping and Naval Architecture,Chongqing Jiaotong University,Chongqing 400074,China)

机构地区：[1]湖南工业大学电气与信息工程学院,湖南株洲412007 [2]重庆交通大学航运与船舶工程学院,重庆400074

出　　处：《现代电子技术》2019年第24期16-19,24,共5页Modern Electronics Technique

基　　金：湖南省自然科学基金项目(2017JJ4024)~~

摘　　要：为了研制基于FPGA的LED点阵显示系统,文中论述显示系统的硬件设计方案,给出16×16 LED点阵与FPGA芯片的接口电路,详细介绍FPGA的基于IP核的设计方法。显示数据存放在FPGA片内,其内部的控制逻辑单元与ROM存储器分别进行设计,很方便地实现了22个字符的左移动态扫描显示。充分利用了FPGA运行速度快、I/O引脚多、设计灵活的特点,该文提出的LED点阵显示控制方法具有较好的实际应用价值。In order to develop the LED dot array display system based on FPGA,the hardware design scheme of the display system is discussed,the interface circuit between the 16×16 LED dotmatrix and the FPGA chip is given,and the design method of FPGA based on IP core is introduced in detail.The display data is stored in the FPGA chip.The control logical unit and ROM memory inside the FPGA chip are designed respectively,and then the left-shift dynamic scan display of 22 characters is conveniently realized.The LED dot-matrix display control method can make full use of the FPGA characteristics of fast running,multiple I/O pins and flexible design,and has good practical application value.

关 键 词：LED 点阵显示 硬件设计 动态扫描 存储机制 硬件调试 

分 类 号：TN873.3-34[电子电信—信息与通信工程]