一个可变拓扑的多单片机系统的设计

用可变拓扑互连结构来实现多机间的互连，是计算机多机通讯研究的一个重要方向。本文给出了一个采用现场可编程技术实现的多单片系统的体系结构的设计和实现。它将四片ＭＣＳ－５１系列单片机通过全互连的拓扑结构连接起来，以ＰＣ３８６／４８６为主机，构成一个主从分布式控制的多机系统。该系统还在Ｘｉｌｉｎｘ ＸＡＣＴ的Ｃ
ＣＡＤ工具上进行了模拟验证，并得到ＦＰＧＡ（现场可编程门阵列）实现。

A Reconfigurable System of Multiple Single-Chip Microcomputers

It is an important direction to use variable topology to implement interconnection among multicomputers in the research field of computer communications.This paper introduces the design and implementation of an architecture of multi-singlechip microcomputer system, which uses field-programming technology. In the design,four MCS-51 single-chip microcomputers are connected by crossbar network topology and a PC 386/486 is the host computer, forming a distributed multicomputer system. In addition, the system is simulated by the CAD tool of Xilinx XACT and implemented in FPGA.