Dynamic configuration method and device for embedded operating system

Abstract

The invention provides a dynamic configuration method and device for an embedded operating system, and the method comprises the steps: enabling equipment to start and load a DTS file of a real-time operating system, and storing a mapping table of a function ID and a DTS node in the DTS file; starting configuration information stored in a reserved area on the loading reading board card, analyzing acorresponding function ID, determining corresponding DTS node information according to the function ID configuration, and sending the DTS node information to a real-time operating system of the equipment; and the real-time operating system analyzes the DTS node information and executes a driver of the equipment, and if the driver is matched with the DTS node information and the DTS node state ison, the driver is executed to enable the corresponding function to be on. According to the invention, the maintenance cost of the ROM is saved, and the development period of software is shortened.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of embedded operating systems, in particular to a method and device for dynamically configuring an embedded operating system. Background technique [0002] As the competition in the market becomes more and more fierce, the R&D side of embedded products is faced with two important problems: how to quickly launch products and seize the market. How to reduce the cost of research and development is directly related to the success or failure of the product. [0003] In order to solve the above two problems, public version projects are often launched, that is, the same hardware board is used to match different software and appearance to make different product forms. Although the hardware board can be used for one board, the software generally compiles the corresponding ROM separately for different product requirements. The DTS (Device Tree Source, device tree source code) in the Kerne...

AI Technical Summary

Problems solved by technology

The DTS (Device Tree Source, device tree source code) in the Kernel (real-time operating system) is usually hard-coded, and the DTS node status and attributes cannot be dynamically changed at runtime.

[0004] An existing solution is to add a board ID to the hardware board, and the software ROM adapts different board IDs to realize that one version of ROM corresponds to multiple boards, but this method is often used for the same project board In the case of updating but little change in requirements, such as hardware changes from EDT to PVT, it is necessary to directly determine the board ID and configuration information in the function code block. Once there are too many configurations, the code will be full of if else judgments. This leads to very poor maintainability of the code and a very high risk product

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