基于FPGA嵌入式软核的轻量型TCP/IP协议栈研究与应用

With the continuous development of the integrated circuit, device dimensions' shrinking and the improvement of integration degree, SOC(System on a Chip) has gradually become the core of Embedded System. The portability and reusability of FPGA embedded soft-core can shorten development cycles and reduce development complexity, widely used in smart home appliances, medical equipment, industrial control, and aerospace equipment and so on. This paper reviews the mainstream FPGA embedded soft-core and Light weight TCP/IP protocol stack, selects Altera's Nios II soft-core which has good peripheral interfaces and portability as processor unit. In the design of protocol stack, we used LwIP(Light weight IP Protocal) to achieve network communication. Finally, we demonstrate the correctness of the platform by using wireshark software to capture packets.