Method and device for performing board-level management by simulating local bus

Abstract

The invention provides a method for performing board-level management by simulating a local bus, comprising the following steps of: A, selecting a group of general purpose input / output (GPIO) interfaces of a processor on a functional card or a functional board, and defining the pins of the GPIO interfaces as the functional groups of the local bus, wherein the functional groups include a data bus, an address bus and a control signal; B, programming a special driver according to the time sequence of the local bus based on the selected GPIO pins on the processor and the defined functional groups, and defining the driver as a special emulation driver module; C, enabling other software run by the processor except the special emulation driver module to access to a management peripheral connected to the GPIO interfaces by invoking the application program interface of the special emulation driver module, thus realizing the operation management of the functional card or the functional board by the processor. The invention also provides a device for performing board-level management by simulating a local bus.

Description

technical field [0001] The invention relates to the field of data communication, in particular to a method and device for simulating a local bus for board-level management. Background technique [0002] There are various forms of communication equipment, ranging from desktop equipment with a single-function motherboard to rack-mounted equipment that supports multiple types of function cards. These function cards (boards) have very different implementation complexities depending on the processing tasks they undertake, but generally, the function cards (boards) are designed with embedded CPUs (special CPUs or multi-purpose CPUs that undertake the management tasks). CPU) for board-level daily management, such as identification (ID) information processing of function cards (boards), hot restart processing, control of managed peripherals (device), work status indication, etc., and the CPU also needs to be connected to non-volatile The memory is used to store the startup (boot) p...

AI Technical Summary

Problems solved by technology

[0008] As the processing capability of modern communication equipment becomes stronger and stronger, the business processing complexity of function cards (boards) is getting higher and higher. In some cases, dedicated multi-core processors must be used to meet business requirements. Due to the high-speed and in-depth processing of data services, the external interfaces supported by the chip focus on high-speed data interfaces and low-speed serial interfaces, and no longer support low-speed parallel local buses such as local buses, thus making the use of this type of multi-core processor function Board-level management of cards (boards) is very difficult

[0009] In view of the above situation, the current common practice in the industry is still to add a dedicated management CPU for board-level management of function cards (boards). Although the original board-level management definitions and corresponding software modules of function cards (boards) can be well inherited, but Will pay more objective material cost

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