Abstract: This paper discusses how to develop an Ethernet interface for a smart entry controller based on S3C44B0X CPU with ARM7TDMI core. The hardware interface circuit is designed with an Ethernet controller chip RTL8019AS as the circuit’s central component. The development and compiling process of the embedded application software are described. The server software running on uCLinux operating system and the client software running on Windows operating system are developed, and the two parties’ communication based on TCP/IP protocol are realized. The communication’s good performance has been proved by test, and the remote data transmission can be realized through the Ethernet.

Key words: embedded system, S3C44B0X, uCLinux, smart access controller, TCP/IP

摘要： 论述了在Linux操作系统下开发基于ARM7TDMI内核S3C44B0X微处理器的智能门禁控制器以太网通信接口技术。设计了以以太网控制器芯片RTL8019AS为核心的接口硬件电路，说明了嵌入式系统应用软件开发、编译流程，开发了运行于uCLinux操作系统的服务器端程序和运行于Windows操作系统的客户端程序，实现了基于TCP/IP协议的双向通信。测试表明，系统通信正常，可以通过以太网进行远程数据传输。

关键词: 嵌入式系统, S3C44B0X, uCLinux, 智能门禁控制器, TCP/IP

CLC Number: 

• TP273