Hardware reset control method and apparatus

Abstract

The invention discloses a hardware reset monitoring method and a device thereof. When an executive switch of the system stops the operation, the relevant information of the operation is recorded; when the system is reset by a watchdog, the relevant information of the recorded operation is obtained; the analysis of the relevant information of the operation is carried out to determine the cause for the system reset by the watchdog. The proposal provided by the embodiment of the invention can be rapidly and effectively positioned in the operating process of the system software. The system reset caused by long interruption provides an effective and rapid method to the problem of circuit reset of the positioning hardware watchdog.

Description

technical field [0001] The invention relates to the technical field of computers and communications, in particular to a hardware reset monitoring method and device. Background technique [0002] An embedded system refers to a computer system that is included in a specific system, is application-centric, and is designed for the purpose of assisting a specific system to complete its functions with high quality. The system is mainly suitable for applications with strict requirements on function, reliability, cost, volume, and power consumption. [0003] The system in the communication system is usually an embedded system, so it has high requirements on the reliability of the system software. When the system software is not running normally, there needs to be a mechanism to reset the system and enter the normal state. The "reset" here actually refers to the system restart. [0004] The state of the system is "normal" or "abnormal". Embedded systems usually use a simple way to ...

AI Technical Summary

Problems solved by technology

[0010] 1. Since the state of the system software cannot be guaranteed to be normal before the system is reset, it cannot be guaranteed that the system software can correctly receive the notification from the watchdog, so this recording method is not reliable;

[0011] 2. The recorded information is only the system status information at the time of reset, and there is no record of the interrupt shutdown operation that actually caused the reset, which is not conducive to fault location and troubleshooting;

[0013] Therefore, in the prior art, there is no accurate method for monitoring the system operating state before the watchdog reset operation, and thus it is impossible to accurately analyze the reason why the system is reset by the watchdog.

Images