DSP控制的以太网通信解决方案

Solution of Ethernet communication based on DSP

为了实时采集基于DSP的电力电子变换电路控制器的运行数据,通过ARM芯片及以太网PHY控制器芯片提供一种以太网通信解决方法。采用DSP中的SPI串行接口与ARM中的SPI进行数据交换,利用ARM中带有的EMAC控制器以及以太网控制芯片DP83848设计出以太网控制器,实现以太网通信。考虑到系统简化及数据速率问题,在通信协议方面采用UDP协议,采用LabVIEW设计以太网上位机界面。

In order to collect the data of power electronic conversion circuit controller based on DSP, this method uses DSP, ARM and PHY to solve the communication of Ethernet. This article introduces the SPI of DSP and SPI of ARM to swap the data, and also uses the EMAC controller of ARM and DP83848 to design the controller of Ethernet. So this system achieves the communication of Ethernet. Being concerned of simplification of the system and speed issue, this system introduces UDP protocol This system utilizes LabVIEW to design PC interface.