【摘要】 介绍以太网控制芯片RTL8019AS,并设计在有限存储空间的单片机中嵌入TCP/IP协议的以太网接入系统,实现了RS 485现场总线设备通过嵌入TCP/IP单片机系统接入以太网,完成PC机与终端设备的远程通信和控制,最后对系统性能进行测试分析,取得了满意的效果。更多还原

【Abstract】 This paper presents an ethernet controller consisting of the RTL8019AS and the implementing of the TCP/IP in an embeded microcontroller system,which usually has a limit memory space.The remote data communication between the user and the RS-485 field bus has been realized in this system along with the analysis of its performance.更多还原