Network Port and Serial Port Data Penetration Design Based on LwIP

Xu Xiangyang; Zhang Yu; Bi Sheng; Wang Xiaojun

Chinese

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Network Port and Serial Port Data Penetration Design Based on LwIP

更新时间：2026-08-29

- Network Port and Serial Port Data Penetration Design Based on LwIP
- Vol. 23, Issue 9, Pages: 78-82(2023)
- 作者机构：
  
  河北科技大学信息科学与工程学院,石家庄,050000
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2023
- 稿件说明：
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Xu Xiangyang, Zhang Yu, Bi Sheng, et al. Network Port and Serial Port Data Penetration Design Based on LwIP[J]. 2023, 23(9): 78-82.
DOI：

Xu Xiangyang, Zhang Yu, Bi Sheng, et al. Network Port and Serial Port Data Penetration Design Based on LwIP[J]. 2023, 23(9): 78-82. DOI：

摘要

对于目前某些特殊设备只配备RS-422或LVDS串口而没有以太网口的情况

上位机与它们之间的数据透传只能依靠串口转换器实现

例如Moxa Uport系列USB转串口转换器等。这样的数据透传方式不仅传输距离近、效率低、成本高

而且不能够接入网络。针对这些问题

提出了一种基于LwIP TCP网口-串口数据透传设备设计方案

该数据透传设备使用ZYNQ-7020 SoC作为主控芯片设计了RS-422接口电路和LVDS接口电路

实现了网口数据与RS-422/LVDS串口数据的透传

最后在某地检设备上进行性能测试。测试结果表明该数据透传设备的RS-422和LVDS串口可实现在2 Mb/s以内的任意速率下无丢包、无误码的数据透传功能

为网口与串口之间的数据透传提供了一种可靠的实现方案。

Abstract

For some special devices only equipped with RS-422 or LVDS serial port without an Ethernet port

the data transparent transmission between the upper computer and they can only be realized by the serial port converter on the market

such as Moxa Uport series USB to serial port converter.This data transparent transmission mode not only has short transmission distance

low efficiency

high cost

but also cannot access the network.To solve these problems

a design scheme of TCP netword-serial data transmittal device based on LwIP is proposed.The data transmittal device uses ZYNQ-7020 SoC as the main control chip to design RS-422 interface circuit and LVDS interface circuit

which realizes the transmittal of network data and RS-422/LVDS serial data.Finally

through the performance test carried out on a certain inspection equipment

it is proved that the serial ports of RS-422 and LVDS of the data transparent transmission equipment can realize the data transparent transmission function without packet loss and error at any rate less than 2 Mb/s

which provides a reliable implementation scheme for the data transparent transmission between the network port and the serial port.

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Related Institution

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