Academic Journal of Computing & Information Science, 2026, 9(4); doi: 10.25236/AJCIS.2026.090412.
Cuiping Zhang1,2, Jiazu Xie1,2
1Tianjin Key Laboratory of Wireless Mobile Communications and Power Transmission, Tianjin Normal University, Tianjin, 300387, China
2College of Electronic and Communication Engineering, Tianjin Normal University, Tianjin, 300387, China
With the rapid development of the Internet of Things (IoT) and industrial control networks, the demand for embedded devices to access Ethernet is increasing day by day. This article designs and implements an Ethernet communication system based on STMicroelectronics' high-performance ARM Cortex-M4 core microcontroller STM32F407ZGT6. The system adopts a modular design concept, with STM32F407 as the core hardware and LAN8720A physical layer transceiver (PHY) chip integrated to build an Ethernet interface; The lightweight TCP/IP protocol stack (LWIP) was ported to the software to implement network protocol processing, and a Socket based application layer communication program was developed. This paper provides a detailed explanation of hardware circuit design, software architecture construction, the porting and configuration of the LWIP protocol stack, application layer communication protocol design, and the system testing plan. The test results show that the system can stably implement TCP and UDP communication, meeting the basic needs of embedded devices accessing local area networks for data exchange. It has the advantages of low cost, stable performance, and easy development, laying the foundation for more complex network applications such as web servers and remote control in the future.
STM32F407; Ethernet communication; LWIP; TCP/IP; Embedded systems; LAN8720A; Socket
Cuiping Zhang, Jiazu Xie. Design and Implementation of Etherne Communication System Based on STM32F407. Academic Journal of Computing & Information Science (2026), Vol. 9, Issue 4: 96-102. https://doi.org/10.25236/AJCIS.2026.090412.
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