基于ENC28J60的表面肌电信号采集系统的网络接口设计

Design of Network Interface for SECG Acquisition Based on ENC28J60

针对当前许多医疗仪器未能实现网络连接的问题,提出了一种基于ENC28 J60的网络接口的设计方法,并应用于表面肌电信号采集系统。电路主要由主控芯片dsPIC30F6012和以太网控制芯片ENC28 J60组成。重点介绍了网络通信接口电路的设计、SPI通信,以及TCP/IP远程通信。实验证明,基于ECN28 J60的网络接口应用于表面肌电采集系统,具有结构简单、性能稳定、兼容性强的特点。

For the need of medical instruments connecting with Internet, a design of SECG acquisition system＇ s network interface based on ENC28J60 is given. Controller dsPIC30F6012 and Ethernet controller ENC28J60 are applied to design the network interface. The design of ENC28J60＇ s interface circuit and the interface circuit between ENC28J60 and dsPIC30F6012 are mainly discussed, and the method about how to realize the SPI communication and the TCP/IP remote communication is introduced. The results of experiments indicate that the design has the simplicity of hardware structure, high stability of data communication and firm compatibility.