基于PIC单片机的以太网数据采集与控制电路设计

Design of Ethernet Data Acquisition and Control Circuit Based on PIC16F877

本文介绍了由单片机控制的基于以太网的数据采集电路。该电路采用了美国Microchip公司的8位单片机PIC16F877和台湾Realtek公司的10M以太网控制芯片RTL8019AS,实现了数据采集以及以太网数据传输的功能。整个电路主要包括网络接口电路,单片机电路,A/D转换电路,D/A转换电路,RAM存储电路,EEPROM存储电路,DIO电路等。文中简单阐述了以太网数据采集电路的设计原理,并给出了其实现的方法。

This paper introduces an ethernet data acquisition circuit based on a microcontroller. This circuit uses an eight bit microcontroller PIC16F877 from American Microchip company and a 10M ethernet control chip RTL8019AS from Taiwan Realtek company. It realizes data acquisition and ethernet data transmission. This circuit contains net interface circuit, microcontroller circuit, A/D conversion circuit, D/A conversion circuit,RAM storage circuit, EEPROM storage circuit,DIO circuit and so on. This paper briefly discusses the designing principle of ethernet data acquisition circuit and gives the realizing method.