In order to solve the transmission problems of large data amount,high speed and strong real?time performance of the embedded field,a design scheme combining FPGA and PHY chip is proposed to implement the UDP/IP protocol. The sys?tem architecture and working principle of TCP/IP protocol stack are studied deeply. According to the packed and unpacked frame format of Ethernet,the UDP/IP data is sent and received correctly in FPGA. The correctness and reliability of the scheme are verified on the autonomously?developed hardware platform. The system using FPGA to implement the UDP/IP protocol has the advantages of high portability and easy integration.%为解决嵌入式领域中数据量大、速度高、实时性强等传输问题,提出FPGA和PHY芯片相结合的设计方案,用于实现UDP/IP协议.通过深入研究TCP/IP协议栈体系结构和工作原理,按照以太网的帧格式封包和解包,在FPGA中实现UDP/IP数据的正确发送和接收.在自主研发的硬件平台上验证了该方案的正确性和可靠性.由于使用FPGA实现UDP/IP协议,系统具有移植性高和易于集成等优点.
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