电能质量监测系统中的SPI串行通信

SPI communication in the monitor system of power quality

以电能质量监测系统为研究背景,提出了一种可广泛应用于现代测量仪器中的ARM加DSP的分布式控制结构,着重分析了不同厂家的SPI接口在技术上的差异,同时根据电能质量监测系统的功能需求给出了一个DSP与ARM进行SPI接口通信的解决方案,并在此基础之上编写了实现基于SPI接口的ARM与DSP之间的串行通信。

Based on the study of the monitor system of power quality,the distributed control structure which combines ARM and DSP is proposed to be used widely for the modern measuring instruments.This paper highlights the analysis of the technical difference of SPI interface made by different manufactory.With the consideration of the need of the monitor system of power quality,a solution to the SPI communication between ARM and DSP is proposed.