Method and device for power-on starting self-inspection of embedded system

Abstract

The invention provides a method and device for power-on starting self-inspection of an embedded system. The method comprises a step S1 of starting the embedded system after the embedded system is powered on; a step S2 of causing a complex programmable logic device to detect a software state flag bit of the embedded system after power-on time T, and if the flag bit is normal, executing a step S3; or else, executing a step S4; the step S3 of running an indicating lamp which displays normality, and performing anomaly detection on the flag bit regularly; the step S4 of causing the complex programmable logic device to perform repeated detection N1 times; if the state of the flag bit is abnormal, powering off the embedded system and then powering up the embedded system again, and performing power-on judgment of the embedded system again; if the continuous repeated power-on fails N2 times, executing a step S5; the step S5 of switching off a power supply, judging that software cannot be started, and running the indicating lamp to display faults. According to the method and the device, the problem that the due to power-on timing sequence disorder of the embedded system caused by internal and external factors, the software of the embedded system cannot run normally is solved.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a self-checking method and device for power-up of an embedded system. Background technique [0002] Embedded systems are used on some specific special equipment. Mobile phones, digital cameras, set-top boxes, high-definition TVs, video conferencing systems, switches, routers, and automotive electronics that we usually see in daily life are typical embedded systems. With the intelligentization of traditional home appliances, large-scale development and research of products such as smart sockets, smart power boxes, smart wall routers, smart monitoring systems and robots, embedded systems and related technologies are becoming more important. However, there are often some problems in the use of embedded systems, such as the failure of the product to operate normally due to the wrong power-on sequence. In the prior art, in order to solve the problem that the embedded system ca...

AI Technical Summary

Problems solved by technology

However, there are often some problems in the use of embedded systems, such as the failure of the product to run normally due to the wrong power-on sequence, etc.

In the prior art, in order to solve the problem that the embedded software system cannot run normally due to the disordered power-on sequence caused by internal and external factors, it is necessary to manually power on and off the embedded device before it can be resumed.

This mode of operation is too cumbersome, so providing a method and device capable of self-checking the embedded system when it is powered on has become an urgent problem to be solved at present.

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