Method and device for detecting equipment faults

Abstract

The invention discloses a method and a device for detecting equipment faults. The method comprises the following steps: configuring a hardware configuration word of the position of a first command relative to the CPU operation, wherein the position of the first command is the original position of a preset command code inside the ROM; powering a single board and then executing the preset command code inside the ROM by the CPU according to the hardware configuration word; initializing the internal register of the CPU and a single board interface according to the command code; detecting the individual hardware modules on the single board by using the internal register of the CPU to obtain a fault detection result; and displaying the fault detection result via an external device connected with the single board interface. The method can detect all hardware of the device under the condition that the CPU and the ROM run normally. Additionally, the related interfaces are initialized when running the programs in the ROM, so that the detection result is displayed in real time by means of the interface function, and the fault repair is facilitated.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for detecting equipment faults. Background technique [0002] In the existing communication equipment, the hardware design is usually more complicated, and the failure conditions of the hardware equipment are also various, such as failure to start after power-on, crash during startup, unavailable functions of a certain functional module, etc. When detecting equipment hardware failures, it is often necessary to Testing a large number of hardware signals, troubleshooting is time-consuming and laborious, and it is difficult to find the fault point effectively and accurately. [0003] When a communication device fails, manual hardware fault detection methods can be used. Generally, engineers rely on experience to infer the location of possible faults, and then use multimeters, oscilloscopes and other testing instruments to assist in testing hardware...

AI Technical Summary

Problems solved by technology

The disadvantage of using this method is that the precondition of this method is that the small CPU system must work normally, that is, the small CPU system can run normally when the power is turned on to run the power-on self-test software.

For the fault that the small CPU system cannot operate normally after power-on, this method is helpless

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