基于SOPC的嵌入式IP网关实现方案

An Implementation Scheme of Embedded IP Gateway Based on SOPC

针对宽带卫星数据通信需求,提出一种基于可编程系统芯片(SOPC)的嵌入式IP网关实现方案。卫星数据通信网链路层一般采用高级数据链路控制协议(HDLC),该方案在单芯片上设计并实现了高速HDLC核,并建立了嵌入式Linux软件环境。与普通方案相比,该方案具有灵活、高效和高性能等突出优势。介绍了方案的设计思想、要点和软硬件架构,给出了设计实例,并在实际系统中得到充分验证。

A scheme of embedded IP gateway based on SOPC is proposed for wideband satellite data communication.HDLC（High-level Data Link Control Procedures）is one of the most widely used Data-Link layer protocols in satellite data communication system.A high-speed HDLC IP CORE is designed and implemented on a single chip and an embedded linux software environment is set up.Compared to common scheme,this scheme is more flexible and efficient.The throughput of this scheme is also higher.The design idea,key point and the structure of both hardware and software of the proposed scheme is presented.A prototype of this scheme is given and it is proved that this prototype has high performance.