Hardware acquisition system and method for equipment failure log

A technology for equipment failure and acquisition system, applied in hardware monitoring, instruments, electrical and digital data processing, etc., can solve problems such as engineers wasting a lot of time, CPU or equipment software systems cannot respond, and valuable information cannot be obtained. The effect of reliable processing

Active Publication Date: 2009-10-14
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] Obviously, if the device crashes sufficiently thoroughly that the CPU or device software system cannot respond to all signals including the NMI signal, then its software log system will not...

Method used

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  • Hardware acquisition system and method for equipment failure log
  • Hardware acquisition system and method for equipment failure log
  • Hardware acquisition system and method for equipment failure log

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Embodiment Construction

[0038] Specific embodiments of the present invention will be described in detail below. It should be noted that the embodiments described here are for illustration only, and are not intended to limit the present invention.

[0039] Based on the specification description and the consideration of easy reading, the terms appearing in the patent application documents of the present invention are defined one by one as follows:

[0040] JTAG (Joint Test Action Group, Joint Test Action Group): It is an international standard test specification that complies with the IEEE1149.1 standard. The specification that is extended on the basis of the JTAG specification is called EJTAG (Enhanced JTAG);

[0041] JTAG interface: refers to the interface defined by the JTAG specification, such as the existing JTAG interface or EJTAG interface, or even some private interfaces defined based on the JTAG specification;

[0042] It should be noted that the above terms are only used to refer to one of t...

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Abstract

The invention relates to a hardware acquisition system and a method for equipment failure log. A logic device is connected with a watchdog device and the JTAG interfaces of CPU, respectively and is used for receiving trigger from the watchdog device when overtime overflow occurs; boundary scanning is executed for a selected unit in CPU by the JTAG interface according to preset boundary scanning logic and the equipment failure log is generated according to the obtained boundary scan result; in addition, the CPU reset is triggered after the boundary scanning is completed. The hardware acquisition system and the method for equipment failure log is not limited by the software failure degree of the equipment and can still ensure the acquisition of key information even when the failure of the equipment software system is very serious.

Description

technical field [0001] The invention relates to the technical field of electronic equipment, in particular to a hardware acquisition system for equipment failure logs and a hardware acquisition method for equipment failure logs. Background technique [0002] With the continuous development and progress of electronic technology, the function of electronic equipment is becoming more and more powerful, and its structure is correspondingly more and more complex, which puts forward higher requirements for the reliability and maintainability of electronic equipment. Wherein, fault location and fault cause finding in the electronic device depend on the log information recorded by the electronic device itself. [0003] At present, it is generally combined with watchdog technology to record device fault logs based on software. Its working principle is as follows: figure 1 Shown: [0004] When the central processing unit (CPU) is in the normal working state, it will schedule the equ...

Claims

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Application Information

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IPC IPC(8): G06F11/34G06F11/00
Inventor 张元
Owner NEW H3C TECH CO LTD
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