HDLC协议原理及FPGA实现研究  

Research on HDLC protocol principle and implementation based on FPGA

作　　者：仇晓涛 Qiu Xiaotao(CEC Defense Technology Company Limited,Nanjing 210000,China)

机构地区：[1]中电防务科技有限公司,江苏南京210000

出　　处：《无线互联科技》2023年第3期129-131,共3页Wireless Internet Technology

摘　　要：高级数据链路控制(HDLC)协议是在数字通信领域中广泛应用的协议之一,用以在远程用户之间实现资源共享和信息交互。HDLC协议是一种面向比特流的数据链路层协议,其特点有高效性、可靠的透明传输以及强大的差错检测功能。文章介绍了HDLC协议的帧结构,并研究了HDLC协议在发送端如何组帧以及接收端实现解帧的过程,提出一种利用FPGA编程实现HDLC协议的硬件处理方法,将编写的代码下载到Xilinx FPGA芯片中并测试通过,证实了HDLC协议利用FPGA实现的可行性。与HDLC专用芯片相比,该方法可靠性高、灵活性好以及实现简单,具有良好的应用前景。High-level data link control protocol is one of the most widely used protocols in the digital communication field,which is used to realize resource sharing and information interaction between remote users.It is a bit oriented high level data link control procedure,which has the characteristics of high efficiency,synchronous transmission and powerful error detection function.This paper introduces the frame structure of HDLC protocol,and studies the implementation process of framing at the sending end and deframing at the receiving end of HDLC protocol.This study proposes a hardware processing method of implementing HDLC based on FPGA.The code is downloaded to Xilinx FPGA chip and tested,which confirms the feasibility based on FPGA.Compared with the special HDLC chip,this method has the advantages of high reliability,good flexibility and simple implementation,and has a good application prospect.

关 键 词：HDLC协议 FPGA CRC校验 

分 类 号：TN919.1[电子电信—通信与信息系统]