›› 2015, Vol. 28 ›› Issue (2): 134-.

• 论文 • 上一篇    下一篇

基于FPGA的参数可调RS422接口电路设计实现

王俊超,王恒亮   

  1. (西安电子科技大学 电子信息攻防对抗与仿真重点实验室,陕西 西安 710071)
  • 出版日期:2015-02-15 发布日期:2015-02-16
  • 作者简介:王俊超(1989—),男,硕士研究生。研究方向:嵌入式设备电器检测模拟装置开发。E-mail:wjcxidian@gmail.com。王恒亮(1989—),男,硕士研究生。研究方向:嵌入式Linux系统移植和应用。

Design and Realization of RS422 Interface Circuit with Adjustable Parameters Based on FPGA

WANG Junchao,WANG Hengliang   

  1. (Ministry of Education Key Laboratory of Electronic Information Countermeasure and Simulation,Xidian University,Xi'an 710071,China)
  • Online:2015-02-15 Published:2015-02-16

摘要:

介绍了一种基于FPGA的波特率可变、数据位和停止位长度可调、奇偶校验功能可选的RS422串行信号接口电路设计。该设计以Altera的Cyclone系列芯片EP3C80F780I7作为控制芯片,以ADI的ADM2687EBRIZ作为RS422差分信号处理芯片。此外,该设计所有运算功能均采用硬件逻辑实现,具有可靠性高、通用性强的特点。

关键词: FPGA, RS422, 接口电路

Abstract:

This paper introduces a design of RS422 signal processing interface circuit based on FPGA with adjustable baud rate,length of data and stop bit,and optional parity function.The design uses Altera Cyclone chips EP3C80F780I7 for control,and the differential signal processing chip ADM2687EBRIZ ADIfor the RS422 processing.All operational functions of the design are accomplished by hardware logic.The design has characteristics of high reliability and versatility.

Key words: FPGA;RS422;interface circuit

中图分类号: 

  • TN79