88Microcontrollers&EmbeddedSystems2023年第2期www.mesnet.com.cnHMI显示屏的以太网硬件电路设计刘高尚,欧阳旭阳,苗仲海(苏州长风航空电子有限公司,苏州215151)摘要:针对城市地铁通信网络发展需求,设计了基于i.MX6Q平台网络系统人机交互显示屏的硬件电路。本文重点阐述了百兆以太网硬件电路总体架构、百兆以太网硬件电路设计和以太网一致性测试。测试结果表明,硬件电路完全符合以太网一致性测试的指标,且设计的以太网硬件电路具有良好的可靠性和较高的实际应用价值。关键词:i.MX6Q;HMI;以太网硬件电路中图分类号:TN45文献标识码:ADesignofEthernetHardwareCircuitofHMIDisplayLiuGaoshang,OuyangXuyang,MiaoZhonghai(AVICSUZHOUCHANGFENGAVIONICSCO.,LTD.,Suzhou215151,China)Abstract:Accordingtothedevelopmentdemandofurbansubwaycommunicationnetwork,theethernethardwarecircuitofHMIdisplayscreenbasedoni.MX6Qisdesigned.Thispaperfocusesontheoverallarchitectureofethernethardwarecircuit,thedesignofethernethardwarecircuitandethernetconsistencytest.Thetestresultsshowthatthedesignedethernethardwarecircuithasgoodreliability,highusevalueandfullymeetstheethernetconsistencytestindex.Keywords:i.MX6Q;HMI;Ethernethardwarecircuit0引言随着很多城市大力投资建设地铁,地铁网络通信技术快速发展,且逐渐由以太网技术替代MVB技术,该技术实现了信号传输速率提升和从封闭式向开放式变化[1]。随着以太网技术逐渐成熟和完善,以太网通信设备越来越多。以太网具有实时性强、成本低和带宽高等...