基于TCP／IP协议栈的串口－网口转换器设计

摘要

基于轮机模拟器的以太网通信的要求，提出了一种W5500网络芯片＋AVR系列单片机ATmega16L的串口－网口转换器的设计方案，阐述了硬件设计以及通信软件的设计。采用W5500省去了TCP／IP协议集的编程，降低开发难度的同时缩短了开发周期。该模块具有自动更新目标IP地址功能，通过ATmega16L的编程进行SPI时序控制以及以太网配置参数设置。在轮机模拟器上进行现场调试，实现串口与以太网络的数据传输和共享。%Because of the requirements of Ethernet communication of the Marine Engineer Simulator,a convert project be-tween serial interface and Ethernet is introduced based on W5500 and ATmega16.The design of hardware,communication software program and related interfaces are described.Eliminate the programming of TCP/IP protocol suite,reduce the de-velopment effort and shorten the development cycle.