介绍了一种基于STM32硬件平台的以太网通信技术系统设计。系统充分利用FreeRTOS实时操作系统和LwIP协议栈的特点,通过以太网控制器LAN8720A和RJ45接口连接以太网,在LwIP协议栈NETCONN接口基础上扩展实现UDP协议通信过程,上位机和客户端可以进行双向网络数据包传输。
Abstract
In the paper,a system based on STM32 hardware platform for Ethernet communication technology is designed.The system makes full use of the features of the FreeRTOS real-time operating system and the LwIP protocol stack.The Ethernet controller LAN8720A and the RJ45 interface are used to connect to the Ethernet,and the UDP protocol communication process is extended on the basis of the NETCONN interface of the LwIP protocol stack,which allows bi-directional packet transmission between the host computer and the client.
关键词
LwIP /
FreeRTOS /
STM32 /
以太网通信 /
UDP /
LAN8720A
Key words
LwIP /
FreeRTOS /
STM32 /
Ethernet communication /
UDP /
LAN8720A
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