基于LXI总线的1553B通讯模块设计与开发

摘要

针对基于LXI仪器总线的1553B通讯模块开发需求,提出了一种基于SOPC的1553B总线通讯解决方法。以SOPC技术为支撑,在一块FPGA上嵌入NiosⅡ软核处理器、以太网控制组件、1553B控制组件和RAM模块;通过移植嵌入式实时操作系统μC/OSⅡ和LwIP协议,实现了TCP/IP协议和1553B总线协议;最后开发了模块的仪器驱动程序。本文设计方法开发难度低,设计模块体积小、便于升级,具有较强的工程应用和经济价值。%To meet the requirement of 1553B bus communication module with LXI,one approach was proposed based on system on one-chip（SOPC） technology.With the SOPC,the NiosII soft core processor,Ethernet interface controller,1553B interface controller and the RAM were embedded in one FPGA chip.For the software,the μC/OSⅡ operating system and the LwIP stack were transplanted.Based on that,the Web server,the TCP/IP protocol and 1553B function were realized.And then,the instrument driver was developed for designed module.The approach is easy to design and the instrument convenient to upgrade,which have strong engineering value and economic benefit.