Computing equipment expanding system and expanding method

Abstract

The invention discloses a computing equipment expanding system and expanding method. The computing equipment expanding system comprises a main computing unit, an expanding computing unit and a memory, wherein the main computing unit comprises a first main function module and a first interconnection interface controller, the expanding computing unit comprises a second main function module and a second interconnection interface controller, the first interconnection interface controller and the second interconnection interface controller respectively provide interconnection memory interfaces so that the main computing unit is connected to the expanding computing unit through a first memory bus, and the first interconnection interface controller is reused as a memory controller. The computing equipment expanding system has the advantages that the first interconnection interface controller is reused as the memory controller, the interface resource of the main computing unit can be saved, and the PCB (printed circuit board) wiring is simplified.

Description

technical field [0001] The invention belongs to the application technology of programmable devices, and in particular relates to a computing device expansion system and expansion method. Background technique [0002] With the development of embedded computer technology, the integration of computing equipment is getting higher and higher, the performance and function are more and more powerful, and its complexity is also increasing. [0003] Computing devices include not only general-purpose processors used in computers, but also systems-on-chip (SOC for short) that integrate processors and peripheral electronic systems into one chip. System-on-a-chip is a standard product customized by customers or for specific purposes. Although this can reduce manufacturing costs, it has the problems of lack of specific functions and poor scalability. When the hardware resources of the SOC cannot meet the requirements, additional programmable devices (such as field programmable gate array...

AI Technical Summary

Problems solved by technology

If the additional interface provided by the main computing unit 100 is a parallel interface of the HPI type, although it can provide a larger bandwidth, it greatly increases the wiring burden of the PCB.

If the additional interface provided by the main computing unit 100 is a serial interface of the SPI type, it will cause insufficient communication bandwidth capability

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