Watch-dog implementation method and device based on Nios II system

An implementation method and watchdog technology, applied in the computer field, can solve the problems of gap, structure, and peripheral interface bus structure are not fixed, and achieve the effect of strong versatility and improved stability.

Inactive Publication Date: 2014-03-19
BEIJING HUAHUAN ELECTRONICS
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Problems solved by technology

[0003] Because NiosII is a soft-core processor, its structure, peripheral interface and bus structure are not fixed, so the stability of the whole system is far behind the dedicated ASIC (Application Specific Integrated Circuits, application specific integrated circuit) chip, so a stable , a reliable watchdog system is very important for a system using NiosII, but currently there is no universal and recognized standard for watchdog software for NiosII+linux environments

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  • Watch-dog implementation method and device based on Nios II system
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  • Watch-dog implementation method and device based on Nios II system

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0022] Such as figure 1 Shown, the embodiment of the present invention provides a kind of watchdog implementation method based on NiosII system, comprising:

[0023] Step 11, the background guard unit receives the first dog feeding signal sent by the application program, and restarts the application program according to the first dog feeding signal and the registration information of the application program.

[0024] Step 12, the guard unit receiv...

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Abstract

An embodiment of the invention provides a watch-dog implementation method and device based on a Nios II system. The watch-dog implementation method based on the Nios II system comprises the steps as follows: a background guard unit receives a first dog feeding signal sent by an application program, and performs restart operation on the application program according to the first dog feeding signal and registration information of the application program; and the guard unit receives a second dog feeding signal sent by the background guard unit, and performs restart on the Nios II system according to the second dog feeding signal. According to the watch-dog implementation method and device based on the Nios II system, the watch-dog system with a multi-task processing system structure is realized, the universality is high, the method and the device can be applicable to various operation systems, and the system stability is improved.

Description

technical field [0001] The invention relates to the technical field of computers, in particular to a NiosII system-based watchdog implementation method and device. Background technique [0002] The NiosII microprocessor is a configurable general-purpose 32-bit RISC (Reduced Instruction Set Computer, reduced instruction set computer) soft-core processor designed and developed by Altera Corporation. It can be applied to various types of FPGAs (Field Programmable Gate Array, field programmable Programmable gate array) chip, as a configurable general-purpose RSIC soft-core processor, users can cut and add (mainly CPU peripheral interface, bus and other elements) to the soft-core processor according to needs to meet different needs . Commonly used embedded operating systems such as uC / OS-II and uClinux can be run on the NiosII system, so that NiosII can adapt to applications in various fields and facilitate the development of application software. [0003] Because NiosII is a s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/07
Inventor 甄维良房帅霍启强
Owner BEIJING HUAHUAN ELECTRONICS
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