基于Altera DE2的摩斯电码译码器设计  

The Morse code decoder based on the Altera DE2

作　　者：周雁 赵芳芳 ZHOU Yan;ZHAO Fang-fang(School of Information Science and Technology,Tibet University,Lhasa 850000,China;Confidential Affairs Bureau of Tibetan Autonomous Prefecture of Golog,Golog 814000,China)

机构地区：[1]西藏大学信息科学技术学院,西藏拉萨850000 [2]青海省果洛藏族自治州委机要局,青海果洛814000

出　　处：《电子设计工程》2019年第6期160-164,共5页Electronic Design Engineering

摘　　要：摩斯电码是非常经典的一种时通时断的信号代码,它是根据点和横排列顺序的差异表达不同的英文字母、数字以及某些标点符号。论文以Verilog HDL语言为硬件描述语言,运用Altera DE2实验开发板,使用按键进行摩斯电码的输入,根据按键时长不同识别出"."和"-",然后对电码进行译码,并显示到实验板的液晶屏上。设计中加入了不同的LED灯来辅助辨别按键时长、是否完成一个字母的输入,以及辅助判断输入是否有误。测试发现,该译码器输出结果正确,实现了预设功能。Morse code,was invented to express different English letters,Numbers and punctuation marks.It is a kind of classic signal code within breaking of.This design took Verilog HDL language as coding language,use the Altera DE2 board as design platform.In this design,a key was pushed to input the Morse code’s,and“.”and“-”was recognized base on different time when the key was pushed;and then,they were decoded to different chars and displayed on the“LCD1602”screen.Different lights were used as an aid to identify different inputs,whether to finish a letter,and whether the inputs are correct.The tests show that the output of the decoder is correct,and the preset function is realized.

关 键 词：摩斯电码 译码器 AlteraDE2 EDA 

分 类 号：TN702[电子电信—电路与系统]