基于ENC28J60的TMS320F2812以太网通信接口设计

Design of TMS320F2812 Ethernet Interface Based on ENC28J60

TMS320F2812作为一款性能优越的数字信号处理器,缺乏对以太网通信的支持使其无法满足电能质量监测领域日益增长的通信需求;针对电能质量监测的数据通信需求,设计了基于ENC28J60芯片的TMS320F2812以太网通信接口,在简要介绍ENC28J60和TMS320F2812芯片的基础上,重点阐述了以太网接口设计,包括以太网独立控制器ENC28J60的外围硬件电路设计,驱动程序设计及上层通信软件的设计;用TMS320F2812的SPI引脚接口与ENC28J60相连,通过微指令编程实现ENC28J60的控制逻辑,网络层、传输层采用嵌入式TCP/IP协议,应用层采用HTTP协议;通过在与接口相连的计算机上运行TCP/UDP Socket调试工具对通信进行测试;实验证明通信稳定可靠,实现了TMS320F2812的以太网通信。

As an effective DSP, TMS320F2812 can not satisfy the growing requirement of date communication of electric power quality monitoring. The Ethernet interface of TMS320F2812 based on ENC28J60 is designed for the date communication of electric power quality monitoring. Following a brief introduction of EN28J60 and TMS320F2812, the design of Ethernet interface is expatiated, including the de- sign of the peripheral circuit of ENC28J60, the design of drive program and the design of protocol, using the SPI port of TMS320F2812 con- neclE with ENC28J60, using microinstruction programming to realize the control logic of ENC28J60. The net layer and transport layer use embedded TCP/IP protocol, application layer use HTTP protocol. Texting communication by running TCP/UDP Socket on the text comput- er contact with interface . The stable of communication is verified by test, and the Ethernet communication of TMS320F2812 is realized.