Research And Implementation Of Ethernet Technique Based On SOPC

With the advent of 21st century which is the era of network and information, Internet has penetrated into people's work and life in all aspects. As an important part in computer field, embedded system is famous for its compact structure, low power consumption, reliable performance and low-cost. So it has not only become hotsopt of research, but also been widely used in people's production and life, especially suited for monitoring with higher real-time requirements. Because of the urgency of information interaction, it is a trend for embedded system to access Internet.The combination of embedded system and TCP/IP protocol stack is the basis of accessing network for embedded system. SOPC is the developing trend of embedded system. Based on the research, Xilinx Spartan-3E XC3S500E FPGA chip is selected and development tools ISE 8.2 and XPS 8.2 are utilized to establish SOPC system. Based on the analysis of principles of core in embedded RTOSμC/OS-II, its functions of task management, task scheduling, time management, interrupt processing, memory management and communication mechanism and some others are implemented in SOPC system. It operates normally through testing. Based on in-depth research of TCP/IP protocol and the characteristics of embedded system, embedded TCP/IP protocol stack LwIP is simplified reasonably and implemented inμC/OS-II. IP, ARP, ICMP and TCP communication protocol are implemented successfully. At this point, the construction of embedded network platform based on SOPC is finished. And embedded Web Server is established. Web pages can be visited through browser. The expansion of Ethernet technology based on SOPC is implemented.The subject is effective in solving the problem that embedded system can not adequately meet the demand for real-time network application due to limited resources. At the same time, a kind of design ideas for embedded Web Server is proposed. It provides a powerful technical support in the following aspects: the expansion of embedded applications in network monitoring system, network interconnection of embedded equipments in industrial scene, as well as remote network monitoring, remote control, remote diagnosis and remote maintenance.