Embedded isomerism CPU array system based on correlative bus

Abstract

The invention relates to an embedded isomerism CPU array system based on correlative bus, comprising a plurality of redundant subsystems; all the redundant subsystems are mutually connected by the correlative bus to form an array; the redundant subsystem is formed by a CPU connected with an independent Flash out-of-core module F, a local high speed memory module M, a global information storage module T and a peripheral I / O interface module; the system adopts CPUs with different physical indexes; the correlative bus is in 34-wire structure, comprises 32 data wires, one clock wire and one function signal wire and has complete transmission protocol; thirty four universal ports of the CPU of all the redundant subsystems are connected with the correlative bus in a 'logical AND' manner, and each CPU connected with the correlative bus has a unique identification mark and priority; one redundant subsystem in the system is a check module and majority result checked by the check module is output as final output of the system. When software of hardware part of one redundant subsystem is damaged and can not work normally, the subsystem is automatically excluded, so that the other part is not influenced and the system has normal output.

Description

technical field [0001] The invention relates to a computer system, in particular to an embedded heterogeneous CPU array system based on a correlation bus. Background technique [0002] With the increasingly wide and continuous application of embedded systems, the control link plays an increasingly important role in the entire embedded device. The integrated circuit as the core of the controller has been developed by leaps and bounds. The improvement of circuit integration makes it more and more sensitive to various electromagnetic energies. With the continuous increase of the power of various electromagnetic radiators such as radar, communication equipment, navigation equipment and other radiation sources and the widening of the frequency spectrum, coupled with the problems of electromagnetic radiation and static electricity in the system itself, many types of control systems are in use. It faces a more complex and harsh electromagnetic environment within its limited space...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an embedded heterogeneous CPU array system based on a cross-correlation bus to solve the problem of limited integrated circuit anti-interference and electromagnetic protection measures, so that the entire system can meet various security requirements at different levels. operational requirements, system safety and reliability are improved

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