摘要
随着网络的发展,以单片机为中心的数据采集、检测控制等系统接入网络共享信息已成为一种趋势,但由于单片机系统的RS-232串口与RJ45网络接口不兼容,使得单片机系统接入网络存在困难。文中提出了一种单片机RS-232串口与RJ45以太网接口转换器的设计方案,转换器总体结构由控制单元、网络接口单元、电源单元组成。还设计了每个单元的硬件电路,并给出了程序流程以及转换器的工作过程。该转换器成功应用于风机监测系统的改造项目。
With the development of network technique, it is popular that a data acquisition and control system with single-chip microcomputer is connected to a network to share information resources. However, there is some troubles for the incompatibility between RS-232 serial port and RJ-45 network interface. A design of interface converter between RS-232 and R J-45 is introduced in this paper. The converter consists mainly of several units such as control unit, network interface unit, power supply. All unit circuits are designed in the paper, as well as program flow and working process. The interface converter is applied successfully in fans monitoring system as present.
出处
《电子工程师》
2008年第3期51-53,共3页
Electronic Engineer
