摘要
本文介绍了一种嵌入式以太网接口的设计与实现，采用基于ARM7TIMD内核的处理器S3C44BOX和以太网控制器RTL8019AS进行硬件设计，详细阐述了硬件接口电路、驱动程序的编写及LwIP协议栈在S3C44BOX上的移植，并给出了通信函数的流程图，通过软硬件的调试，实现嵌入式以太网的数据传输。它适用于中小型嵌入式系统的网络化，可满足数据采集和自动化控制等工业的需要。
This paper gives a design and principle of embedded Ethernet interface.Using the microprocessor S3C44BOX with ARMTTDMI kernel and the Ethernet controller RTL8019AS to design the hardware interface,it specifies the interface circuit diagram,the driver program and the transplant of LwIP to the S3C44BOX,and it also gives the the flow chart of the communication function.Through the debugging of sottware and hardware,it has realized the transmission of embedded Ethernet data.It can be applied in the medium or miniature embedded network.meeting the need of data collection and autocontrol.
出处
《计算机光盘软件与应用》
2011年第15期187-187,172,共2页
Computer CD Software and Application
