CN102508725A - Method for overcoming influence of static electricity on electronic equipment - Google Patents

Abstract

The invention discloses a method for overcoming the influence of static electricity on electronic equipment. The method comprises the following steps of: checking whether a content of a register is changed; and if the content of the register is changed, initializing the register to overcome the influence of the static electricity on the electronic equipment. Proceeding from another innovation angle to consider the problem to be solved by hardware, the method has the advantages that: the cost can be reduced; the problem can be probably solved; and relative to the mode of modifying the hardware, in spite of changing a panel or increasing protection static electricity, the mode of modifying software is simple, effective and more flexible.

Description

A kind of electronic equipment overcomes the method for electrostatic influence

Technical field

The present invention relates to electronic equipment and overcome the electrostatic influence field, particularly a kind of through repair be destroyed hardware register in the electronic equipment value to overcome the influence of static to electronic equipment.

Background technology

When two kinds of object phase mutual friction, the electronics in a kind of object is gone to another object and is got on because of a little less than receiving nuclear constraint, makes the object that obtains electronics because negative charge wherein more than positive charge, thereby shows electronegative; Lose the object of electronics because wherein positive charge more than negative charge, thereby shows positively charged, electrification by friction phenomenon that Here it is.Like glass bar and silk friction, glass bar positively charged.Thus object with electricity be called " static ", will the flashing electric discharge phenomena when it accumulates to a certain degree.This phenomenon is produced with life and is linked to each other closely, tends to bring some inconvenience or harm.

At present, eliminate the influence of static, only prevent that according to hardware modifications circuit design or increase protective device electrostatic phenomenon from causing damage to electronic equipment; In fact; The circuit major part of the PCBA plate of a product has just fixed at the beginning of its design, and the later stage can be changed some cablings to a certain extent again, and the mode that increases components and parts or protective device is avoided the injury of static to equipment; But; Many times, the initial stage circuit design has determined the anti-static ability of total system, possibly be difficult to even can't accomplish test through ESD through revising hardware.

Summary of the invention

The objective of the invention is to overcome at present to revise and be difficult to even can't accomplish deficiency, provide a kind of and utilize software to accomplish to eliminate the method for static the electronic equipment influence through the ESD test through accessory.

The present invention realizes that the technical scheme that its goal of the invention adopts is, a kind of electronic equipment overcomes the method for electrostatic influence, and whether this method is modified through the content of inspection register, if be modified then carry out initialization to overcome the influence of static to this electronic equipment.

Further, above-mentioned a kind of electronic equipment overcomes in the method for electrostatic influence: may further comprise the steps:

Steps A, read all the register normal operating conditionss of electronic equipment and recorded and stored in advance;

Step B, every at a distance from setting-up time compares with the content of preservation to the content of all registers of electronic equipment, if the content of register changes, then carries out initialization.

Above-mentioned setting-up time is 10 seconds.

The present invention goes out to send the problem that consideration should hardware solves from another kind innovation angle, has the following advantages: can reduce cost.Under the situation that hardware designs has been shaped, sometimes hardware will solve the ESD problem must increase some components and parts or electrostatic protection device, and this has increased cost outward for turnout, has reduced the market competitiveness.

Problem is solved become possibility.Even in some cases, no matter how hardware changes plate, how to increase electrostatic protection device, can't accomplish all effectively to prevent that static from bringing unusually to hardware, at this moment, the present invention problem will be solved become a kind of maybe.

With respect to revising hardware, more simple and effective regardless of changing plate or increasing protection static through the mode of revising software, and more flexible.

Below in conjunction with accompanying drawing and embodiment the present invention is at length explained.

Description of drawings

Fig. 1 is a process flow diagram of the present invention.

Embodiment

Embodiment 1; As shown in Figure 1; Present embodiment is a kind of content through register in the detected electrons equipment, when its content changes owing to electrostatic influence produces, through the method for initialization with the influence of elimination static; Whether this method is modified through the content of inspection register, if be modified then carry out initialization to overcome the influence of static to this electronic equipment.

May further comprise the steps:

Steps A, read all the register normal operating conditionss of electronic equipment and recorded and stored in advance;

Step B, every at a distance from 10 seconds compares with the content of preservation to the content of all registers of electronic equipment, if the content of register changes, then carries out initialization.

This selects every following consideration that had at a distance from 10 seconds:

This time is regulation not, and just I rule of thumb come surely, because the time is too short, will influence performance of products, because the detection that does not stop can consume the resource of cpu; Time is oversize, and after static impacted to equipment, interval time was long more, and the cycle is big more, and release time is also just long more, and we hope to recover operate as normal with prestissimo by equipment, so, selected 10 seconds (can adjust slightly) according to actual conditions.

The principle of present embodiment is very simple; Static causes the hardware cisco unity malfunction to the infringement of hardware; Be the value of having destroyed hardware register in fact, as long as we find this register, when the value of finding this register and the value under the normal condition are inequality; Reinitialize this hardware module or restart total system, can recover the operate as normal of hardware.Concrete step is following:

Each buffer status when investigation static causes hardware anomalies.Static is a kind of physical characteristics, and it causes hardware effort unusual, and what have influence on also should be closely related with the hardware physical characteristics, and certain part that can control hardware work, and can not be to cause reasons such as software flow variation just to cause its work undesired.Basically can conclude thus and influence register.But generally control not only one in the register of a certain hardware module operate as normal, need find static to have influence on which or which register on earth, this is the key point of this invention.Because only found this register, the condition that could reinitialize as us.As for the method that finds this register; Can note with regard to the value of output register when the equipment normal operating conditions, check the value of these registers when static makes it unusual then again; With comparing under the normal condition, the register that the value of finding out changes.Here, also should be noted that a bit, is not that value changes just explain it is that static causes, and the definition of some register is dynamically changing, so, must not change the condition of being used as with the state of this register and reinitialize hardware module.The register definitions that need provide according to datasheet, looking for the sort of value in normal operating conditions is changeless register, when the value of under electrostatic influence, finding it was altered, promptly available this register was used as our Rule of judgment.Certainly, need the value of a certain register of multiple authentication under electrostatic influence, all can change, just can draw this conclusion, once in a while or sometimes all can not be the basis for estimation of this register as us.

Adopt the state of the register that finds in the polling mode cycle detection 1, when the value when finding it with operate as normal does not match, just make the action that reinitializes the unusual hardware module of this generation, make it recover operate as normal.

Verify having revised on the hardware device of software test of many times, see and whether can recover operate as normal.

Claims (3)

1. an electronic equipment overcomes the method for electrostatic influence, it is characterized in that: whether this method is modified through the content of inspection register, if be modified then carry out initialization to overcome the influence of static to this electronic equipment.

2. a kind of electronic equipment according to claim 1 overcomes the method for electrostatic influence, it is characterized in that: may further comprise the steps:

Steps A, read all the register normal operating conditionss of electronic equipment and recorded and stored in advance;

Step B, every at a distance from setting-up time compares with the content of preservation to the content of all registers of electronic equipment, if the content of register changes, then carries out initialization.

3. a kind of electronic equipment according to claim 2 overcomes the method for electrostatic influence, it is characterized in that: said setting-up time is 10 seconds.

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