CN110299941A - The accurate test method of optical module IIC Ready Time, electronic equipment and computer readable storage medium - Google Patents
The accurate test method of optical module IIC Ready Time, electronic equipment and computer readable storage medium Download PDFInfo
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- CN110299941A CN110299941A CN201910433866.4A CN201910433866A CN110299941A CN 110299941 A CN110299941 A CN 110299941A CN 201910433866 A CN201910433866 A CN 201910433866A CN 110299941 A CN110299941 A CN 110299941A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
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Abstract
The present invention relates to a kind of accurate test method of optical module IIC Ready Time, electronic equipment and computer readable storage mediums.Method starts its IIC communication after the controller power-on initialization by making optical module, and the I/O port level of controller is inverted when IIC communication starting finishes, then pass through the level reversing moment for powering on moment Yu controller I/O port of capture optical module, the time difference of both meterings learns IIC Ready Time, since power supply of the invention is only responsible for power supply, it is no longer responsible for communication task, therefore the influence of its program-controlled opening time will not be introduced into the metering of IIC Ready Time, so that the time error of IIC Ready Time can be as accurate as within 1us.
Description
Technical field
The present invention relates to fiber optic communication field more particularly to a kind of accurate test method of optical module IIC Ready Time,
Electronic equipment and computer readable storage medium.
Background technique
With the development of Fibre Optical Communication Technology, the rate of fiber optic communication is more toward high speed development, state of the system to optical module
Diagnosis more depends on IIC, therefore the duration that optical module needs precise measurement that can communicate from powering on IIC, i.e. IIC Ready
Time。
Conventional test methodologies be with software test, i.e., by programmable power supply control optical module power on and record power on when
It carves, after optical module powers on, the test software in programmable power supply can ceaselessly send out IIC communication timing and communicate with optical module, until surveying
Examination software can be communicated with optical module IIC, record the connection setup moment at this time, then the IIC Ready Time=connection setup moment-
Power on the moment.
As soon as therefore powering on the moment to optical module as long as optical module can obtain electric since programmable power supply turns on the power switch
Record is instant, but programmable power supply powers on and itself needs to be used for communication control by a series of initialization, including starting afterwards
GPIB card, programmable power supply could formally start to send out IIC communication timing, therefore above-mentioned this test method meeting after the completion of initialization
This section of duration (referred to as program-controlled opening time) will be initialized to be added in IIC Ready Time metering, cause test result
It is inaccurate.And since the program-controlled start-up time of different programmable power supplys is different and only has its manufacturer just to know, cause
Test side is difficult to eliminate the influence of program-controlled start-up time.
Summary of the invention
The purpose of the present invention is keep the test result of optical module IIC Ready Time accurate.
According to one aspect of the present invention, a kind of accurate test method of optical module IIC Ready Time is provided, including
Following steps:
Start its IIC communication after controlling the controller power-on initialization of optical module；
The I/O port level of the controller is inverted when IIC communication starting finishes；
Capture the level reversing moment for powering on moment Yu controller I/O port of optical module；
Metering powers on the time difference of moment and level reversing moment to learn IIC Ready Time.
Optionally, start its IIC communication after the controller power-on initialization of the control optical module, be further adapted for:
Controller sets the level of the I/O port during initializing.
Optionally, its IIC of controller electrifying startup communication of the control optical module, be further adapted for: initialization finishes
The starting code of IIC communication is first carried out afterwards.
Optionally, the capture is specifically realized using oscillograph.
Optionally, optical module and power supply are connected with connecting plate, the acquisition mode for powering on the moment is specifically the company of capture
Rising edge at fishplate bar power port.
According to another aspect of the invention, a kind of accurate test device of optical module IIC Ready Time is provided, is wrapped
Include successively execute with lower module:
IIC communicates starting module, starts its IIC communication after the controller power-on initialization suitable for controlling optical module；
Level reversal block, suitable for the I/O port level of the controller is inverted when IIC communication starting finishes；
Trapping module, suitable for capturing the level reversing moment for powering on moment Yu controller I/O port of optical module；
Time difference metering module, suitable for measuring the time difference for powering on moment and level reversing moment to learn IIC
Ready Time。
Optionally, the IIC communicates starting module, is further adapted for: during controller initialization described in setting
The level of I/O port.
Optionally, the IIC communicates starting module, is further adapted for: opening for IIC communication being first carried out after initialization
Dynamic code.
Optionally, the capture is specifically realized using oscillograph.
Optionally, optical module and power supply are connected with connecting plate, the acquisition mode for powering on the moment is specifically the company of capture
Rising edge at fishplate bar power port.
According to another aspect of the invention, a kind of electronic equipment is provided, wherein the electronic equipment includes:
Processor；And
It is arranged to the memory of storage computer executable instructions, the executable instruction makes the place when executed
Reason device executes above-mentioned method.
According to another aspect of the invention, a kind of computer readable storage medium is provided, wherein the computer can
It reads storage medium and stores one or more programs, one or more of programs when being executed by a processor, realize above-mentioned side
Method.
The utility model has the advantages that
The present invention starts its IIC communication after making the controller power-on initialization of optical module, and when IIC communication starting finishes
The I/O port level of controller is inverted, is then inverted by the level for powering on moment and controller I/O port of capture optical module
Moment, the time difference for measuring the two learn IIC Ready Time, since power supply of the invention is only responsible for power supply, are no longer responsible for leading to
Trust business, therefore the influence of its program-controlled opening time will not be introduced into the metering of IIC Ready Time, so that IIC
The time error of Ready Time can be as accurate as within 1us.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
By reading the following detailed description of the preferred embodiment, various other advantages and benefits are common for this field
Technical staff will become clear.The drawings are only for the purpose of illustrating a preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings:
Fig. 1 shows the process of the accurate test method of optical module IIC Ready Time according to an embodiment of the invention
Schematic diagram；
Fig. 2 shows the schematic block diagrams of test light module ii C Ready Time according to an embodiment of the invention；
Fig. 3 shows the schematic diagram of oscilloscope measurement result according to an embodiment of the invention；
Fig. 4 shows the structure of the accurate test device of optical module IIC Ready Time according to an embodiment of the invention
Schematic diagram；
Fig. 5 shows the structural schematic diagram of electronic equipment according to an embodiment of the invention；
Fig. 6 shows the structural schematic diagram of computer readable storage medium according to an embodiment of the invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
Fig. 1 shows the process of the accurate test method of optical module IIC Ready Time according to an embodiment of the invention
Schematic diagram.As shown in Figure 1, the accurate test method of optical module IIC Ready Time of the embodiment of the present invention includes successively executing
Following steps:
S10 starts its IIC communication after controlling the controller power-on initialization of optical module；
It should be noted that the control implement body is adopted as MCU, power on by reading the program in memory, thus
The initialization operation of resources of chip is executed, during initialization, MCU default will pull into high level on its I/O port inside.
MCU has been internally integrated IIC register, and in embodiments of the present invention, peopleware is solid by the way that IIC is written in MCU
Part code (firmware) come call IIC register operate, thus realize open and close MCU IIC communication function, specifically
Point, first that IIC firmware code is placed on after MCU initialization executes instruction, so that not doing other after MCU initialization
Thing, but operation IIC firmware code communicates first to open IIC, so set, being on the one hand to ensure that IIC firmware code
On the other hand starting is then to ensure that other affairs will not be run by obtaining MCU in the electric this period that can be communicated to IIC from MCU, with
Exempt from the test of influence IIC Ready Time.
Since the firmware code of driving IIC communication belongs to the prior art, it is not repeated herein.
S11 inverts the I/O port level of the controller when IIC communication starting finishes；
It should be noted that in embodiments of the present invention, after MCU has started IIC communication, needing the I/O port of controller at once
Internal drop-down is changed to by inside pull-up, its IO level is made to become low level.
S12 captures the level reversing moment for powering on moment Yu controller I/O port of optical module；
It should be noted that in embodiments of the present invention, when executed using oscillograph to moment and level reversion is powered on
The capture at quarter is specifically shown in Fig. 2, and optical module 3 is inserted on connecting plate 2, setting connecting plate 2 from power supply 1 (can be common electricity
Source, or programmable power supply) in take electricity, and supply electricity to optical module 3, a detecting head of oscillograph 4 be connected to the company
On the power port VCC_PIN of fishplate bar 2, another detecting head of oscillograph 4 is connected to the I/O port of MCU, in this way, see Fig. 3, when
When opening power supply 1, power port VCC_PIN obtains electric, and oscillograph 4 can capture its level and climb, to be climbed out with level
Moment beginning is used as to power on to be recorded constantly；The MCU of optical module 3 must also establish the beginning by cable just while power port VCC_PIN obtains electric
Beginningization, before initialization is not carried out IO setting, the I/O port level of MUC is presented in Fig. 3 shown in dashed box A, is executing IO level
After setting, I/O port becomes high level, and after having initialized starting IIC communication, I/O port becomes low level, and oscillograph 4 captures at this time
It is inverted to level, recording level reversing moment.
S13, metering power on the time difference of moment and level reversing moment to learn IIC Ready Time.
The moment is powered on by subtracting level reversing moment, obtains the time difference between the two, which is IIC
Ready Time。
By the present invention in that starting its IIC communication after the controller power-on initialization of optical module, and start being communicated in IIC
The I/O port level of controller is inverted when finishing, then by capture optical module power on the moment and the level of controller I/O port is anti-
Turn the moment, the time difference for measuring the two learns IIC Ready Time, since power supply of the invention is only responsible for power supply, is no longer responsible for
Communication task, therefore the influence of its program-controlled opening time will not be introduced into the metering of IIC Ready Time, so that IIC
The time error of Ready Time can be as accurate as within 1us.
Fig. 4 shows the structure of the accurate test device of optical module IIC Ready Time according to an embodiment of the invention
Schematic diagram.As shown in figure 4, the accurate test device of optical module IIC Ready Time of the embodiment of the present invention includes:
IIC communicates starting module 41, starts its IIC communication after the controller power-on initialization suitable for controlling optical module；
Level reversal block 42, suitable for the I/O port level of the controller is inverted when IIC communication starting finishes；
Logging modle 43, suitable for recording the level reversing moment for powering on moment Yu controller I/O port of optical module；
Time difference metering module 44, suitable for measuring the time difference for powering on moment and level reversing moment to learn IIC
Ready Time。
In another embodiment of the present invention, the IIC of Fig. 4 shown device communicates starting module 41, is further adapted for:
Controller sets the level of the I/O port during initializing.
In another embodiment of the present invention, the IIC of Fig. 4 shown device communicates starting module 41, is further adapted for: just
The starting code of IIC communication is first carried out after beginningization.
Specifically, the capture is realized using oscillograph, connects optical module and power supply with connecting plate, it is described when powering on
The acquisition mode at quarter is specifically the rising edge captured at connecting plate power port.
The accurate test device of optical module IIC Ready Time of the embodiment of the present invention can be used for executing above method reality
Example is applied, principle is similar with technical effect, and details are not described herein again.
It should be understood that
Algorithm and display be not inherently related to any certain computer, virtual bench or other equipment provided herein.
Various fexible units can also be used together with teachings based herein.As described above, it constructs required by this kind of device
Structure be obvious.In addition, the present invention is also not directed to any particular programming language.It should be understood that can use various
Programming language realizes summary of the invention described herein, and the description done above to language-specific is to disclose this hair
Bright preferred forms.
In the instructions provided here, numerous specific details are set forth.It is to be appreciated, however, that implementation of the invention
Example can be practiced without these specific details.In some instances, well known method, structure is not been shown in detail
And technology, so as not to obscure the understanding of this specification.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of the various inventive aspects,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the disclosed method should not be interpreted as reflecting the following intention: i.e. required to protect
Shield the present invention claims features more more than feature expressly recited in each claim.More precisely, as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim itself
All as a separate embodiment of the present invention.
Those skilled in the art will understand that can be carried out adaptively to the module in the equipment in embodiment
Change and they are arranged in one or more devices different from this embodiment.It can be the module or mould in embodiment
Block or component are combined into a module or module or component, and furthermore they can be divided into multiple submodule or submodule or
Sub-component.Other than such feature and/or at least some of process or module exclude each other, it can use any
Combination is to all features disclosed in this specification (including adjoint claim, abstract and attached drawing) and so disclosed
All processes or module of what method or apparatus are combined.Unless expressly stated otherwise, this specification is (including adjoint power
Benefit require, abstract and attached drawing) disclosed in each feature can carry out generation with an alternative feature that provides the same, equivalent, or similar purpose
It replaces.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments mean it is of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
Meaning one of can in any combination mode come using.
Various component embodiments of the invention can be implemented in hardware, or to run on one or more processors
Software module realize, or be implemented in a combination thereof.It will be understood by those of skill in the art that can be used in practice
Microprocessor or digital signal processor (DSP) realize the wearing state of detection electronic equipment according to an embodiment of the present invention
Device in some or all components some or all functions.The present invention is also implemented as executing institute here
Some or all device or device programs of the method for description are (for example, computer program and computer program produce
Product).It is such to realize that program of the invention can store on a computer-readable medium, or can have one or more
The form of signal.Such signal can be downloaded from an internet website to obtain, and perhaps be provided on the carrier signal or to appoint
What other forms provides.
For example, Fig. 5 shows the structural schematic diagram of electronic equipment according to an embodiment of the invention.The electronic equipment passes
It include processor 51 and the memory 52 for being arranged to storage computer executable instructions (program code) on system.Memory 52 can
To be the Electronic saving of such as flash memory, EEPROM (electrically erasable programmable read-only memory), EPROM, hard disk or ROM etc
Device.Memory 52 has the memory space 53 stored for executing the program code 54 of any method and step in embodiment.Example
It such as, may include each journey for being respectively used to realize the various steps in above method for the memory space of program code 33
Sequence code 54.These program codes can read or be written to from one or more computer program product this or
In the multiple computer program products of person.These computer program products include such as hard disk, compact-disc (CD), storage card or soft
The program code carrier of disk etc.Such computer program product is usually computer-readable storage medium described in such as Fig. 6
Matter.The computer readable storage medium can have the memory paragraph of 52 similar arrangement of memory in the electronic equipment with Fig. 5, deposit
Store up space etc..Program code can for example be compressed in a suitable form.In general, memory module is stored with for executing according to this
The program code 61 of the method and step of invention, it can the program code read by such as 51 etc processor, when these journeys
When sequence code is run by electronic equipment, the electronic equipment is caused to execute each step in method described above.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and ability
Field technique personnel can be designed alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference symbol between parentheses should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Element or step listed in the claims.Word "a" or "an" located in front of the element does not exclude the presence of multiple such
Element.The present invention can be by means of including the hardware of several different elements and being come by means of properly programmed computer real
It is existing.If several in these devices can be through the same hardware branch in the module claim for listing equipment for drying
To embody.The use of word first, second, and third does not indicate any sequence.These words can be explained and be run after fame
Claim.
Claims (12)
1. the accurate test method of optical module IIC Ready Time, characterized in that comprising steps of
Start its IIC communication after controlling the controller power-on initialization of optical module；
The I/O port level of the controller is inverted when IIC communication starting finishes；
Capture the level reversing moment for powering on moment Yu controller I/O port of optical module；
Metering powers on the time difference of moment and level reversing moment to learn IIC Ready Time.
2. according to the method described in claim 1, it is characterized in that, it is described control optical module controller power-on initialization after start
Its IIC communication, is further adapted for: the level of the I/O port is set during controller initialization.
3. according to the method described in claim 2, it is characterized in that, its IIC of controller electrifying startup of the control optical module is logical
Letter, is further adapted for: the starting code of IIC communication being first carried out after initialization.
4. according to the method described in claim 1, it is characterized in that: specifically realizing the capture using oscillograph.
It is described when powering on 5. according to the method described in claim 4, it is characterized in that: connect optical module and power supply with connecting plate
The acquisition mode at quarter is specifically the rising edge captured at connecting plate power port.
6. the accurate test device of optical module IIC Ready Time, characterized in that including successively executing with lower module:
IIC communicates starting module, starts its IIC communication after the controller power-on initialization suitable for controlling optical module；
Level reversal block, suitable for the I/O port level of the controller is inverted when IIC communication starting finishes；
Trapping module, suitable for capturing the level reversing moment for powering on moment Yu controller I/O port of optical module；
Time difference metering module, suitable for measuring the time difference for powering on moment and level reversing moment to learn IIC Ready
Time。
7. device according to claim 6, characterized in that the IIC communicates starting module, is further adapted for: controlling
Device sets the level of the I/O port during initializing.
8. device according to claim 7, characterized in that the IIC communicates starting module, is further adapted for: initialization
After be first carried out IIC communication starting code.
9. device according to claim 6, it is characterized in that: specifically realizing the capture using oscillograph.
It is described when powering on it is characterized in that: connect optical module and power supply with connecting plate 10. device according to claim 9
The acquisition mode at quarter is specifically the rising edge captured at connecting plate power port.
11. a kind of electronic equipment, wherein the electronic equipment includes:
Processor；And
It is arranged to the memory of storage computer executable instructions, the executable instruction makes the processor when executed
Execute method according to any one of claims 1 to 5.
12. a kind of computer readable storage medium, wherein the computer-readable recording medium storage one or more program,
One or more of programs when being executed by a processor, realize method according to any one of claims 1 to 5.
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