多DSP系统中的总线设计

采用多处理器并行结构是实现系统高性能与低成本相结合的最切实可行的一条途径.随着人们对高性能与低成本的需求的增长,多处理器并行系统也得到了越来越多的应用.本文首先介绍了多机系统中常用的几种并行结构,及各自优缺点.目前,采用共享总线的并行结构是一种比较流行的实现方式,它得到了最广泛的应用.本文重点讨论了在多机系统中,几种常用的总线竞争算法.并结合实际多DSP系统的具体应用需求,给出了该系统的总线设计与实现方法.

The Shared Bus Designing in Multi-Processor System

Multi-processor parallel system is usually used in which is wanted higher performance and lower cost.Along with the requirement of high performance and low cost increasing,parallel system based on multi-process acquired more and more application.This paper recommends several parallel structures on multi-process system firstly.Now,the parallel system based on a shared bus is most prevalent.This paper stresses several bus competition arithmetic in a multi-processor system.Then according to a multi-DSP hardware module,it discusses design and implementation method of the shared bus.