Watchdog period self-adaption method and device, computer equipment and storage medium

Abstract

The embodiment of the invention discloses a watchdog period self-adaption method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring a port state; judging whether a self-learning function is started or not according to the port state; if the self-learning function is started, recording moments corresponding to the watchdog information reset by the main system for multiple times; performing periodic self-learning according to the recorded time, and determining an interval of resetting watchdog information by the main system so as to obtain reset main system judgment time; and resetting the main system according to the reset main system judgment time. By implementing the method provided by the embodiment of the invention, the interval duration of the watchdog circuit can be determined through autonomous learning, the method can adapt to different systems, the flexibility is realized, and the situation that the main system is mistakenly reset when a watchdog resetting signal cannot be output in an application scene of immediate upgrading after the main system is started is avoided.

Description

technical field [0001] The present invention relates to a watchdog circuit, and more specifically refers to a watchdog period self-adapting method, device, computer equipment and storage medium. Background technique [0002] In the hardware system, especially the hardware system of the new platform / new solution, due to the immaturity of the software and hardware, the product will inevitably encounter the problem of system freezing during operation. The system is stuck. For consumer users, the experience is very Not good, but for some remote application scenarios, it may cause serious consequences such as long-term suspension of services. Therefore, in the system-level hardware design, a watchdog circuit is usually added to avoid long-term stuck during system operation. The circuit requires the main system to send a reset signal to itself within a fixed period T. Once the circuit receives the reset signal, it will start a new timing with a period of T, assuming that there is ...

AI Technical Summary

Problems solved by technology

[0003] At present, the conventional external watchdog scheme has a fixed watchdog timing period T and an enable control pin to start or close the watchdog circuit. This scheme has two serious drawbacks. One is the fixed watchdog The watchdog timing period T, the software design of various platforms needs to reset the watchdog within this fixed time T, which cannot be differentiated and lacks flexibility; the other is that the watchdog needs an enable signal, if this If the enable signal comes from the main system, the main system and the watchdog circuit cannot be isolated. After the main system abnormally closes the watchdog, the system may be stuck and the watchdog circuit may not work. If the enable signal If it comes from the hardware, the automatic upgrade of the main system will fail because the reset signal cannot be output during the automatic upgrade of the main system.

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