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One-key reset method suitable for embedded Linux operating system

An operating system and embedded technology, which is applied in the direction of data error detection, response error generation, data reset device, etc., to solve the problems that the system cannot be autonomously and intelligently restored.

Inactive Publication Date: 2012-06-27
SHANDONG UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to overcome the defects and deficiencies of the prior art and to solve the problem that the system in the existing embedded devices on the market cannot perform intelligent restoration independently, the present invention provides a system one-key restoration method suitable for embedded Linux operating systems

Method used

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  • One-key reset method suitable for embedded Linux operating system
  • One-key reset method suitable for embedded Linux operating system
  • One-key reset method suitable for embedded Linux operating system

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Embodiment 1

[0103]A system one-key recovery method suitable for an embedded Linux operating system. The system one-key recovery device includes a DC power supply module, a switch control module, a main processor module, a main processor startup control module, a main processor reset module, and a co-processing The controller module, SD card module and Nand Flash module, the DC power supply module supplies power to the whole system; the switch control module is connected with the coprocessor module; the coprocessor module is connected with the main processor to start the control module and the main processor through the general IO port The reset module is connected; the main processor module is connected with the SD card module and the Nand Flash module respectively; in the main processor module, the main processor adopts S3C6410 with ARM11 as the core, and the main processor has an external 128M SDRAM; the co-processing module Among them, the coprocessor is a single-chip microcomputer with...

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Abstract

A one-key reset method suitable for an embedded Linux operating system belongs to the technical field of an embedded system. The one-key reset method of the embedded operating system is constructed by C programming language and assembly language. A user starts the one-key reset of the system by a one-key reset button, and an operating system to be reset is stored in a common SD (Secure Digital) card. When the reset button is pressed, a main processor is triggered to start the level switching of a control module, and the starting mode of the main processor is changed to be in a one-key reset mode. When the reset is finished, a main processor module sends a signal to a reset module, the starting mode is changed to be a normal starting mode, the main processor module is reset, and the system is in login. The system adopts a modular design, a peripheral singlechip is additionally arranged and is taken as a coprocessor module to control the reset of the main processor and change the starting mode of the main processor. By the communication between a GPIO (General Purpose Input / Output) port and the main processor, the one-key reset method is suitable for the embedded main processors with different structures and solves the problem that a common embedded system needs to be connected with an upper computer to be reset.

Description

technical field [0001] The invention relates to a system one-key restoration method applicable to an embedded Linux operating system, and belongs to the technical field of embedded systems. Background technique [0002] With the continuous development of information technology, many handheld devices have become popular Internet access devices because of their low power consumption and portability. Therefore, embedded operating systems applied to various handheld devices have gradually come into the public's field of vision. Linux is an operating system with a UNIX-like kernel that supports multi-users, multi-tasking, multi-threading, and multi-CPU with the network as the core. It is currently one of the most dynamic operating systems. In addition, the Linux system is slightly modified and tailored, and is used in embedded systems, which has great application prospects. [0003] Most of the traditional embedded systems are one-time systems, which need to be connected to the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/24G06F11/14
Inventor 张海霞赫明哲徐加利纪洪亮徐伟涛翟庆羽孙志猛孙文李宗璋
Owner SHANDONG UNIV
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