LAN8720A异步中断的热插拔网络设计原理与方法

Asynchronous Interrupt Hot Swap Network Design Principle and Method Based on LAN8720A

本文首先概述了一般的热插拔网络功能设计依据及方法,继而进一步阐述了基于LAN8720A采用异步中断方式的热插拔网络设计原理。随后在移植LwIP的环境下,分别采用轮询方式和异步中断方式,从硬件及软件两方面详细介绍了热插拔网络功能,并对两种设计方法进行了全面的对比分析。

Firstly,this paper overviews the general design basis and method of hot-swap network function,and further describes the asynchronous interrupt based on LAN8720A hot-swap network design principle.Then,in LwIP transplant environment,the hot-swap network function is designed from hardware and software aspects in polling mode and asynchronous interrupt mode,and the two design methods are compared and analyzed comprehensively.