CN109257094A - A kind of the pre-add weight values obtaining value method and device of the transmitter that serially unstrings - Google Patents
A kind of the pre-add weight values obtaining value method and device of the transmitter that serially unstrings Download PDFInfo
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- CN109257094A CN109257094A CN201811293273.4A CN201811293273A CN109257094A CN 109257094 A CN109257094 A CN 109257094A CN 201811293273 A CN201811293273 A CN 201811293273A CN 109257094 A CN109257094 A CN 109257094A
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- 238000012360 testing method Methods 0.000 claims abstract description 51
- 230000007613 environmental effect Effects 0.000 claims abstract description 26
- 238000004891 communication Methods 0.000 claims description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 240000006909 Tilia x europaea Species 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 description 18
- 230000006870 function Effects 0.000 description 13
- 238000004590 computer program Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
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Classifications
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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
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0799—Monitoring line transmitter or line receiver equipment
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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
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07953—Monitoring or measuring OSNR, BER or Q
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/20—Arrangements for detecting or preventing errors in the information received using signal quality detector
- H04L1/203—Details of error rate determination, e.g. BER, FER or WER
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/24—Testing correct operation
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Abstract
The invention discloses the pre-add weight values obtaining value methods and device of a kind of transmitter that serially unstrings, comprising: determines the model range and at least one environmental parameter range of link, corresponding receiver；In the environment of at least one environmental parameter is in the up/down limit, tested transmitter is tested by all corresponding receivers of the model range of corresponding receiver, to obtain up/down limit preemphasis window；Pre-add weight values are determined according to upper limit preemphasis window and lower limit preemphasis window.Technical solution of the present invention can carry out the test of pre-add weight values for different transmitters or different types of transmitter, save the time, promote convenience and the pre-add weight values selected are more effective.
Description
Technical field
The present invention relates to the communications fields, and more specifically, a kind of preemphasis more particularly to transmitter that serially unstrings
It is worth obtaining value method and device.
Background technique
With the raising of traffic rate between chip, the transmission of current high-speed digital signal mainly using Serdes (serializer/
Deserializer) technology.Since transmission link is lossy, Serdes transmitter (hereinafter referred to as transmitter) needs the side by preemphasis
The high-frequency energy that formula improves signal carrys out the loss of compensation link, and Serdes receiver (hereinafter referred to as receiver) then passes through
The balanced devices such as CTLE, DFE compensate the signal received finally to obtain ideal signal.Serdes transmitter it is pre-
Aggravate and receiver parametric equalizer value debugging it is extremely important for the stability of Serdes link, current bin it is equal
Weighing apparatus parameter value is usually adaptive without manual intervention, and the pre-emphasis parameters value of transmitter is due to its link connected
The difference of loss difference and receiver, needs manually to be adjusted.
The current method for choosing Serdes transmitter pre-add weight values mainly traverses all pre-add weight values configurations, and test is different
Pre-add weight values configure the eye figure of lower receiver end signal, and choosing the pre-add weight values under the high maximum case of eye figure eye is optimal value.It is right
In the link for having outer test points, the test of eye figure has the case where balanced device such as inside receiver usually using high-speed oscilloscope
Shown in Fig. 1, test point needs chip to support eye figure test function inside chip package, using the function, by reading chip
Register obtains eye figure.
This eye figure method of testing of the prior art is tested for each value of each preemphasis and can just be found most
Excellent pre-add weight values, take a long time；And for having the case where balanced device in receiver, since signal receiving point is in receiver
It after portion's balanced device, cannot connect on oscillograph, chip supports eye figure test function where relying on receiver, if without this function
Then it is unable to test eye figure.There is no the case where balanced device that can test at chip pin using oscillograph receiver, but shows
The test result of wave device also needs to be embedded in the loss of chip pin by simulated program, to obtain the signal inside chip receiver
Eye figure at receiving point, this relies on chip producer and provides the high-speed oscilloscope of simulation model and valuableness.
For the test of eye figure method of testing in the prior art, time-consuming, connection is inconvenient, the problem of equipment valuableness, at present there has been no
Effective solution scheme.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to propose a kind of pre-add weight values value side of transmitter that serially unstrings
Method and device can carry out the test of pre-add weight values for different transmitters or different types of transmitter, save the time, promoted just
The benefit and pre-add weight values selected are more effective.
Based on above-mentioned purpose, the pre-add weight values that the one side of the embodiment of the present invention provides a kind of serial transmitter that unstrings are taken
Value method, comprising the following steps:
Determine the model range and at least one environmental parameter range of test link, corresponding receiver；
In the environment of at least one environmental parameter is in limes superiors, pass through all phases of the model range of corresponding receiver
Receiver is answered to test tested transmitter, to obtain upper limit preemphasis window；
In the environment of at least one environmental parameter is in limit inferior, pass through all phases of the model range of corresponding receiver
Receiver is answered to test tested transmitter, to obtain lower limit preemphasis window；
Pre-add weight values are determined according to upper limit preemphasis window and lower limit preemphasis window.
In some embodiments, test link meets network communications standards or computer bus standard；Corresponding receiver
Model range be to be designed to be used as all corresponding receivers for being communicatively coupled with tested transmitter on test chain road
Set；At least one environmental parameter includes temperature parameter.
In some embodiments, in the environment of at least one environmental parameter is in limes superiors, pass through corresponding receiver
All corresponding receivers of model range test tested transmitter, to obtain upper limit preemphasis window, comprising the following steps:
The maximum value in tested transmitter operating temperature range is set by the temperature parameter for testing environment；
Each corresponding receiver tested transmitter being respectively connected within the scope of model；
The pre-add weight values of tested transmitter are set to the minimum value in working range and constantly improve pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops improving pre-add weight values when preset threshold requires when link error rates meet
And the maximum value of the pre-add weight values of all corresponding receivers is recorded as to the minimum value of upper limit preemphasis window；
The pre-add weight values of tested transmitter are set to the maximum value in working range and continue to reduce pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops reducing pre-add weight values when preset threshold requires when link error rates meet
And the minimum value of the pre-add weight values of all corresponding receivers is recorded as to the maximum value of upper limit preemphasis window；
Upper limit preemphasis window is determined according to minimum value and maximum value.
In some embodiments, in the environment of at least one environmental parameter is in limit inferior, pass through corresponding receiver
All corresponding receivers of model range test tested transmitter, to obtain lower limit preemphasis window, comprising the following steps:
The minimum value in tested transmitter operating temperature range is set by the temperature parameter for testing environment；
Each corresponding receiver tested transmitter being respectively connected within the scope of model；
The pre-add weight values of tested transmitter are set to the minimum value in working range and constantly improve pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops improving pre-add weight values when preset threshold requires when link error rates meet
And the maximum value of the pre-add weight values of all corresponding receivers is recorded as to the minimum value of lower limit preemphasis window；
The pre-add weight values of tested transmitter are set to the maximum value in working range and continue to reduce pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops reducing pre-add weight values when preset threshold requires when link error rates meet
And the minimum value of the pre-add weight values of all corresponding receivers is recorded as to the maximum value of lower limit preemphasis window；
Lower limit preemphasis window is determined according to minimum value and maximum value.
In some embodiments, link error rates of the acquisition under different pre-add weight values, comprising the following steps:
Data register is connected to corresponding receiver, the Bit Error Code Statistics information and data frame occurred in collecting test link
Quantity；
Read data register obtains Bit Error Code Statistics information and number of data frames, and calculates link error rates with this.
In some embodiments, link error rates of the acquisition under different pre-add weight values are executed by shell script,
Shell script is stored in tested transmitter, corresponding receiver or is connected to tested transmitter and the third party of corresponding receiver sets
In standby.
In some embodiments, if the pre-add weight values of tested transmitter are taking maximum value/minimum in working range
Link error rates meet preset threshold requirement when value, then maximum/minimum are directly recorded as upper limit preemphasis window/lower limit
The maximum/minimum of preemphasis window.
In some embodiments, pre-add weight values are determined according to upper limit preemphasis window and lower limit preemphasis window, including
Following steps:
Intersection is taken to upper limit preemphasis window and lower limit preemphasis window, determines entirety preemphasis window；
The maximum value of body preemphasis window and the average value of minimum value are rounded as pre-add weight values.
The another aspect of the embodiment of the present invention additionally provides a kind of pre-add weight values value device of transmitter that serially unstrings,
Include:
Tested transmitter；
Corresponding receiver；
The link being connect with tested transmitter and corresponding receiver；
At least one processor, the processor are arranged in tested transmitter, corresponding receiver or are connected to tested transmission
In the third party device of device and corresponding receiver；With
Memory, memory are stored with the program code that processor can be run, and program code executes above-mentioned when being run
Method.
The another aspect of the embodiment of the present invention additionally provides a kind of signal communications system that serially unstrings, which includes upper
State pre-add weight values value device.
The present invention has following advantageous effects: the pre-add weight values of the transmitter provided in an embodiment of the present invention that serially unstrings
Obtaining value method and device, by the model range and at least one environmental parameter range that determine test link, corresponding receiver；?
At least one environmental parameter is in the environment of the up/down limit, passes through all correspondingly received of the model range of corresponding receiver
Device tests tested transmitter, to obtain up/down limit preemphasis window；It is true according to upper limit preemphasis window and lower limit preemphasis window
Determine the technical solution of pre-add weight values, the test of pre-add weight values, section can be carried out for different transmitters or different types of transmitter
Make an appointment, the pre-add weight values that promote convenience and select it is more effective.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Other embodiments are obtained according to these attached drawings.
Fig. 1 is the link schematic diagram of the prior art serially to unstring；
Fig. 2 is the flow diagram of the pre-add weight values obtaining value method of the transmitter provided by the invention that serially unstrings；
Fig. 3 is the detail flowchart of the pre-add weight values obtaining value method of the transmitter provided by the invention that serially unstrings.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with specific embodiment, and reference
The embodiment of the present invention is further described in attached drawing.
It should be noted that all statements for using " first " and " second " are for differentiation two in the embodiment of the present invention
The non-equal entity of a same names or non-equal parameter, it is seen that " first ", " second " do not answer only for the convenience of statement
It is interpreted as the restriction to the embodiment of the present invention, subsequent embodiment no longer illustrates this one by one.
Based on above-mentioned purpose, the first aspect of the embodiment of the present invention, propose one kind can for different transmitters or
Different types of transmitter carries out the embodiment of the pre-add weight values obtaining value method of pre-add weight values test.Fig. 2 shows be the present invention
The flow diagram of the embodiment of the pre-add weight values obtaining value method of the transmitter that serially unstrings provided.
The pre-add weight values obtaining value method of the transmitter that serially unstrings, comprising the following steps:
Step S101 determines the model range and at least one environmental parameter range of test link, corresponding receiver；
Step S103 passes through the model model of corresponding receiver in the environment of at least one environmental parameter is in limes superiors
All corresponding receivers enclosed test tested transmitter, to obtain upper limit preemphasis window；
Step S105 passes through the model model of corresponding receiver in the environment of at least one environmental parameter is in limit inferior
All corresponding receivers enclosed test tested transmitter, to obtain lower limit preemphasis window；
Step S107 determines pre-add weight values according to upper limit preemphasis window and lower limit preemphasis window.
The upper limit value and lower limit that the embodiment of the present invention passes through pre-add weight values under searching Serdes transmitter different application scene
Value, comprehensive selection one adapts to the pre-add weight values of practical application scene.
In some embodiments, link meets network communications standards or computer bus standard；The type of corresponding receiver
Number range is to be designed to be used as the set for all corresponding receivers being communicatively coupled on the link with tested transmitter；Extremely
A kind of few environmental parameter includes temperature parameter.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, Ke Yitong
Computer program is crossed to instruct related hardware and complete, the program can be stored in a computer-readable storage medium,
The program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein, the storage medium can for magnetic disk,
CD, read-only memory (ROM) or random access memory (RAM) etc..The embodiment of the computer program, Ke Yida
The effect identical or similar to corresponding aforementioned any means embodiment.
In step s101, environment refers to the variable that Serdes transmitter pre-add weight values can be influenced during products application
The Serdes receiver model range that combination, usually ambient temperature range are connected with Serdes transmitter opposite end, but be not limited to
This, such as there is also influences for the factors such as air humidity.
The opposite end Serdes for determining that the Serdes transmitter (hereinafter referred to as transmitter) being debugged in product needs support connects
The model range of device (hereinafter referred to as receiver) is received, the total quantity of each model is denoted as m.This method is suitable for all with preemphasis
The Serdes transmitter of function, Serdes transmitter, receiver can be compatible with the network communications standards such as 10Gbase-KR, SFI,
It can be with the computer bus standard such as compatible with PCI e.The receiver in a Serdes link may not be fixed in the product,
Such as receiver variation with the variation of PCIe plug-in card model in the link of CPU to PCIe slot in a server；At one
MAC chip receiver into the link of optical interface changes with optical module model and is changed in interchanger, therefore the model of receiver
It is inevitable related.
It determines the specification environment temperature upper limit of product and lower limit is ceiling temperature or lower limit temperature as subsequent minimum ring
Border temperature and highest environment temperature, however, not limited to this, can also additionally be expanded outside product specification temperature range if needed
The range of test temperature.
Disclosed method is also implemented as the computer program executed by CPU, the calculating according to embodiments of the present invention
Machine program may be stored in a computer readable storage medium.When the computer program is executed by CPU, executes the present invention and implement
The above-mentioned function of being limited in method disclosed in example.In addition, above method step also can use controller and make for storing
It obtains controller and realizes that the computer readable storage medium of the computer program of above-mentioned steps is realized.
In some embodiments, in the environment of at least one environmental parameter is in limes superiors, pass through corresponding receiver
All corresponding receivers of model range test tested transmitter, to obtain upper limit preemphasis window, comprising the following steps:
The maximum value in tested transmitter operating temperature range is set by the temperature parameter for testing environment；
Each corresponding receiver tested transmitter being respectively connected within the scope of model；
The pre-add weight values of tested transmitter are set to the minimum value in working range and constantly improve pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops improving pre-add weight values when preset threshold requires when link error rates meet
And the maximum value of the pre-add weight values of all corresponding receivers is recorded as to the minimum value of upper limit preemphasis window；
The pre-add weight values of tested transmitter are set to the maximum value in working range and continue to reduce pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops reducing pre-add weight values when preset threshold requires when link error rates meet
And the minimum value of the pre-add weight values of all corresponding receivers is recorded as to the maximum value of upper limit preemphasis window；
Upper limit preemphasis window is determined according to minimum value and maximum value.
In some embodiments, in the environment of at least one environmental parameter is in limit inferior, pass through corresponding receiver
All corresponding receivers of model range test tested transmitter, to obtain lower limit preemphasis window, comprising the following steps:
The minimum value in tested transmitter operating temperature range is set by the temperature parameter for testing environment；
Each corresponding receiver tested transmitter being respectively connected within the scope of model；
The pre-add weight values of tested transmitter are set to the minimum value in working range and constantly improve pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops improving pre-add weight values when preset threshold requires when link error rates meet
And the maximum value of the pre-add weight values of all corresponding receivers is recorded as to the minimum value of lower limit preemphasis window；
The pre-add weight values of tested transmitter are set to the maximum value in working range and continue to reduce pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops reducing pre-add weight values when preset threshold requires when link error rates meet
And the minimum value of the pre-add weight values of all corresponding receivers is recorded as to the maximum value of lower limit preemphasis window；
Lower limit preemphasis window is determined according to minimum value and maximum value.
In some embodiments, link error rates of the acquisition under different pre-add weight values, comprising the following steps:
Data register is connected to corresponding receiver, acquires the Bit Error Code Statistics information occurred in link and data frame number
Amount；
Read data register obtains Bit Error Code Statistics information and number of data frames, and calculates link error rates with this.
In some embodiments, link error rates of the acquisition under different pre-add weight values are executed by shell script,
Shell script is stored in tested transmitter, corresponding receiver or is connected to tested transmitter and the third party of corresponding receiver sets
In standby.
In some embodiments, if the pre-add weight values of tested transmitter are taking maximum value/minimum in working range
Link error rates meet preset threshold requirement when value, then maximum/minimum are directly recorded as upper limit preemphasis window/lower limit
The maximum/minimum of preemphasis window.
Step S103 is similar to step S105 essence, and the embodiment of the present invention is explained using step S105.It is advised in product
Under minimum temperature in lattice temperature range, it is connect respectively using all m kind Serdes receivers with Serdes transmitter.Configuration hair
It send device using minimum pre-add weight values, m kind Serdes receiver is connected and communicated respectively, is continuously increased pre-add weight values, remember
Record is able to satisfy the minimum pre-add weight values of the bit error rate.Transmitter is reconfigured using maximum pre-add weight values, m kind Serdes is received respectively
Device is connected and is communicated, and constantly reduces pre-add weight values, and record is able to satisfy the maximum pre-add weight values of the bit error rate.If test discovery hair
The minimum value or maximum value for sending device preemphasis that can configure are able to satisfy error code requirement, then the value, which can also be denoted as, meets error code requirement
Maximum or minimum value.Window refers to that one between the preemphasis maxima and minima of Serdes link error rates can be expired
Section.
The serdes transmitter that weight to be chosen can be used in the test method of the above-mentioned bit error rate normally connects with receiver
It connects, passes through the Bit Error Code Statistics information and data frame number of register read receiver data link layer under system normal operation
Measure the method calculated.The bit error rate can flexibly be determined according to length of testing speech, can generally be set to the bit error rate of bus request
102Again to 104Times.It is above-mentioned can be automatic by shell script for the adjustment of pre-add weight values and the statistical work of error code information
It completes, shell script may operate in the system of management Serdes transmitter or receiver, if transmitter and receiver position
Then can be with where receiver using pc connection transmitter by a pc Run Script program in two independent systems
System.
The various illustrative steps in conjunction with described in disclosure herein may be implemented as electronic hardware, computer software or
The combination of the two.In order to clearly demonstrate this interchangeability of hardware and software, with regard to the function of various illustrated steps
General description has been carried out to it.This function be implemented as software be also implemented as hardware depending on concrete application with
And it is applied to the design constraint of whole system.Those skilled in the art can realize in various ways for every kind of concrete application
The function, but this realization decision should not be interpreted as causing a departure from range disclosed by the embodiments of the present invention.
In some embodiments, pre-add weight values are determined according to upper limit preemphasis window and lower limit preemphasis window, including
Following steps:
Intersection is taken to upper limit preemphasis window and lower limit preemphasis window, determines entirety preemphasis window；
The maximum value of body preemphasis window and the average value of minimum value are rounded as pre-add weight values.
The pre-add weight values of selection are the centre that all m kind receivers are able to satisfy the bit error rate under highest and lowest environment temperature
Value.This median is that all optical modules meet the preemphasis minimum value of the bit error rate and the average value of maximum value at all temperature.
The range for the value that can be selected due to preemphasis Configuration Values is limited, this average value it may also be desirable to take it is immediate can
The value of configuration.
The function can be realized in hardware, software, firmware or any combination thereof.It, can if realized in software
The function may be stored on the computer-readable medium as one or more instruction or code or by computer-readable Jie
Matter transmits.Computer-readable medium includes computer storage media and communication media, which includes helping to count
Calculation machine program is transmitted to any medium of another position from a position.Storage medium can be can be by general or specialized meter
Any usable medium of calculation machine access.As an example and not restrictive, the computer-readable medium may include RAM, ROM,
EEPROM, CD-ROM or other optical disc memory apparatus, disk storage equipment or other magnetic storage devices, or can be used for
Carry or storage form be instruction or data structure required program code and can by general or specialized computer or lead to
With or application specific processor access any other medium.In addition, any connection can be properly termed as computer-readable medium.
For example, if using coaxial cable, optical fiber cable, twisted pair, digital subscriber line (DSL) or such as infrared ray, radio and
The wireless technology of microwave to send software from website, server or other remote sources, then above-mentioned coaxial cable, optical fiber cable, double
Twisted wire, DSL or such as wireless technology of infrared ray, radio and microwave are included in the definition of medium.As used herein,
Disk and CD include compact disk (CD), laser disk, CD, digital versatile disc (DVD), floppy disk, Blu-ray disc, and wherein disk is logical
Often magnetically reproduce data, and CD using laser optics reproduce data.The combination of above content should also be as being included in calculating
In the range of machine readable medium.
Carry out the embodiment of the present invention is further explained embodiment below according to specific embodiment.Specific detailed process can
Referring to fig. 2.
1, equipment is placed in high-low temperature test chamber, adjusts temperature to product specification minimum temperature.Product is connected to need
Compatible optical module A.The light transmitting terminal of optical module A is connected to the optical receiving end of optical module A by short fiber；Or connection is taken office
It anticipates on the optical module B an of same size, optical module B is connected on any one interchanger.MAC chip is configured to continue in optical mode
The port that block A is connected sends broadcasting packet.
2, the minimum value that the equalizer values for the Serdes transmitter that configuration is connect with optical module A are supported for it, usually
0dB.Pre-add weight values are continuously increased, when Serdes receiver is able to satisfy the 10-8 bit error rate, record the lower limit value of preemphasis.If
MAC minimum value is also able to satisfy bit error rate requirement, and then lower limit value is minimum value.
3, the maximum value that the equalizer values for the Serdes transmitter that configuration is connect with optical module A are supported for it constantly reduces
Pre-add weight values record the upper limit value of preemphasis when Serdes receiver is able to satisfy the 10-8 bit error rate.If MAC minimum value
Being able to satisfy bit error rate requirement, then lower limit value is minimum value.
4, replacement optical module repeats above-mentioned 2,3 step, and the optical module that equipment can be supported is tested one time.
5, the maximum temperature that high-low temperature test chamber temperature can be supported to product is adjusted, 2,3,4 steps are repeated.
6, all optical modules can be finally obtained two kinds of high temperature/low temperature under the conditions of by 1~4 step described in this example
The preemphasis upper limit, lower limit value, all test results record in following tables.A preemphasis median is selected according to result.In this
Between value be that all optical modules meet the preemphasis minimum value of the bit error rate and the average value of maximum value at all temperature.Due to preemphasis
The range for the value that Configuration Values can select is limited, therefore this average value also needs approximation to take immediate configurable value.
Receiver in the embodiment of the present invention includes but is not limited to PHY chip, optical module, light turn electric module, other MAC cores
The device etc. that piece can connect, any chip for being adapted for carrying out the embodiment of the present invention all should be considered as institute of the embodiment of the present invention
The receiver stated.
From above-described embodiment as can be seen that the pre-add weight values value side of the transmitter provided in an embodiment of the present invention that serially unstrings
Method, by the model range and at least one environmental parameter range that determine link, corresponding receiver；In at least one environmental parameter
In the environment of the up/down limit, tested transmitter is tested by all corresponding receivers of the model range of corresponding receiver,
To obtain up/down limit preemphasis window；The technology of pre-add weight values is determined according to upper limit preemphasis window and lower limit preemphasis window
Scheme can carry out the test of pre-add weight values for different transmitters or different types of transmitter, save the time, promote convenience
The property and pre-add weight values selected are more effective.
It is important to note that in each embodiment of the pre-add weight values obtaining value method of the above-mentioned transmitter that serially unstrings
Each step can be intersected, replaces, increases, be deleted, and therefore, these reasonable permutation and combination transformation are unstringed in serially
The pre-add weight values obtaining value method of transmitter should also be as belonging to the scope of protection of the present invention, and should not be by protection scope of the present invention
It is confined on the embodiment.
Based on above-mentioned purpose, the second aspect of the embodiment of the present invention, propose one kind can for different transmitters or
Different types of transmitter carries out the embodiment of the pre-add weight values value device of pre-add weight values test.Described device includes:
Tested transmitter；
Corresponding receiver；
The link being connect with tested transmitter and corresponding receiver；
At least one processor, processor setting tested transmitter, corresponding receiver or be connected to tested transmitter and
In the third party device of corresponding receiver；With
Memory, memory are stored with the program code that processor can be run, and program code executes above-mentioned when being run
Method.
It can be various electric terminal equipments, such as mobile phone, a number that the embodiment of the present invention, which discloses described device, equipment etc.,
Word assistant (PDA), tablet computer (PAD), smart television etc., are also possible to large-scale terminal device, such as server, therefore this hair
Protection scope disclosed in bright embodiment should not limit as certain certain types of device, equipment.The embodiment of the present invention discloses described
Client can be with the combining form of electronic hardware, computer software or both be applied to any one of the above electric terminal
In equipment.
Computer readable storage medium (such as memory) as described herein can be volatile memory or non-volatile
Memory, or may include both volatile memory and nonvolatile memory.As an example and not restrictive, it is non-easy
The property lost memory may include read-only memory (ROM), programming ROM (PROM), electrically programmable ROM (EPROM), electrically-erasable
Programming ROM (EEPROM) or flash memory.Volatile memory may include random access memory (RAM), which can
To serve as external cache.As an example and not restrictive, RAM can be obtained in a variety of forms, such as synchronous
RAM (DRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate SDRAM (DDR SDRAM), enhancing SDRAM
(ESDRAM), synchronization link DRAM (SLDRAM) and directly Rambus RAM (DRRAM).The storage of disclosed aspect is set
The standby memory for being intended to including but not limited to these and other suitable type.
Based on above-mentioned purpose, in terms of the third of the embodiment of the present invention, propose one kind can for different transmitters or
Different types of transmitter carries out the embodiment of the signal communications system that serially unstrings of pre-add weight values test.Serial solution string signal is logical
Letter system includes the pre-add weight values value device of the above-mentioned transmitter that serially unstrings.
The signal communications system that unstrings of the various exemplary series in conjunction with described in disclosure herein can use and be designed to
Realize or execute for executing the following component of function described here: general processor, digital signal processor (DSP), specially
It is patrolled with integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor
Volume, any combination of discrete hardware component or these components.General processor can be microprocessor, but replaceable
Ground, processor can be any conventional processors, controller, microcontroller or state machine.Processor also may be implemented as counting
The combination for calculating equipment, for example, the combination of DSP and microprocessor, multi-microprocessor, one or more microprocessors combination DSP
And/or any other this configuration.
From above-described embodiment as can be seen that the pre-add weight values value dress of the transmitter provided in an embodiment of the present invention that serially unstrings
It sets and serially unstrings signal communications system, pass through the model range and at least one environmental parameter for determining link, corresponding receiver
Range；In the environment of at least one environmental parameter is in the up/down limit, pass through all phases of the model range of corresponding receiver
Receiver is answered to test tested transmitter, to obtain up/down limit preemphasis window；According to upper limit preemphasis window and lower limit preemphasis
Window determines the technical solution of pre-add weight values, can carry out the survey of pre-add weight values for different transmitters or different types of transmitter
Examination, saves the time, promotes convenience and the pre-add weight values selected are more effective.
It is important to note that the pre-add weight values value device of the above-mentioned transmitter that serially unstrings and serial solution string signal are logical
The embodiment that the embodiment of letter system uses the pre-add weight values obtaining value method of the transmitter that serially unstrings is each to illustrate
The course of work of module, those skilled in the art can be it is readily conceivable that by these module applications to the transmission of serially unstringing
In the other embodiments of the pre-add weight values obtaining value method of device.Certainly, due to the pre-add weight values value of the transmitter that serially unstrings
Each step in embodiment of the method can be intersected, replaces, increases, be deleted, and therefore, these reasonable permutation and combination become
The signal communications system that alternatively unstrings in the pre-add weight values value device of the transmitter that serially unstrings and serially should also be as belonging to this
The protection scope of invention, and protection scope of the present invention should not be confined on the embodiment.
It is exemplary embodiment disclosed by the invention above, it should be noted that in the sheet limited without departing substantially from claim
Under the premise of inventive embodiments scope of disclosure, it may be many modifications and modify.According to open embodiment described herein
The function of claim to a method, step and/or movement be not required to the execution of any particular order.In addition, although the present invention is implemented
Element disclosed in example can be described or be required in the form of individual, but be unless explicitly limited odd number, it is understood that be multiple.
It should be understood that it is used in the present context, unless the context clearly supports exceptions, singular " one
It is a " it is intended to also include plural form.It is to be further understood that "and/or" used herein refers to including one or one
Any and all possible combinations of a above project listed in association.The embodiment of the present invention discloses embodiment sequence number
Description, does not represent the advantages or disadvantages of the embodiments.
It should be understood by those ordinary skilled in the art that: the discussion of any of the above embodiment is exemplary only, not
It is intended to imply that range disclosed by the embodiments of the present invention (including claim) is limited to these examples；In the think of of the embodiment of the present invention
Under road, it can also be combined between the technical characteristic in above embodiments or different embodiments, and exist as described above
Many other variations of the different aspect of the embodiment of the present invention, for simplicity, they are not provided in details.Therefore, all at this
Within the spirit and principle of inventive embodiments, any omission, modification, equivalent replacement, improvement for being made etc. should be included in this hair
Within the protection scope of bright embodiment.
Claims (10)
1. a kind of pre-add weight values obtaining value method for the transmitter that serially unstrings, which comprises the following steps:
Determine the model range and at least one environmental parameter range of test link, corresponding receiver；
In the environment of at least one environmental parameter is in limes superiors, pass through the institute of the model range of the corresponding receiver
There is corresponding receiver to test tested transmitter, to obtain upper limit preemphasis window；
In the environment of at least one environmental parameter is in limit inferior, pass through the institute of the model range of the corresponding receiver
There is corresponding receiver to test tested transmitter, to obtain lower limit preemphasis window；
Pre-add weight values are determined according to the upper limit preemphasis window and the lower limit preemphasis window.
2. the method according to claim 1, wherein the test link meets network communications standards or computer
Bus standard；The model range of the corresponding receiver is to be designed to be used as on the test chain road and the tested transmission
The set for all corresponding receivers that device is communicatively coupled；At least one environmental parameter includes temperature parameter.
3. according to the method described in claim 2, it is characterized in that, being in the ring of limes superiors at least one environmental parameter
Under border, tested transmitter is tested by all corresponding receivers of the model range of the corresponding receiver, it is pre- to obtain the upper limit
Aggravate window, comprising the following steps:
The maximum value in the tested transmitter operating temperature range is set by the temperature parameter for testing environment；
Each described corresponding receiver that the tested transmitter is respectively connected within the scope of the model；
The pre-add weight values of the tested transmitter are set to the minimum value in working range and constantly improve pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops improving pre-add when preset threshold requires when the link error rates meet
Weight values and the minimum value that the maximum value of the pre-add weight values of all corresponding receivers is recorded as to upper limit preemphasis window；
The pre-add weight values of the tested transmitter are set to the maximum value in working range and continue to reduce pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops reducing pre-add when preset threshold requires when the link error rates meet
Weight values and the maximum value that the minimum value of the pre-add weight values of all corresponding receivers is recorded as to upper limit preemphasis window；
The upper limit preemphasis window is determined according to the minimum value and the maximum value.
4. according to the method described in claim 2, it is characterized in that, being in the ring of limit inferior at least one environmental parameter
Under border, tested transmitter is tested by all corresponding receivers of the model range of the corresponding receiver, it is pre- to obtain lower limit
Aggravate window, comprising the following steps:
The minimum value in the tested transmitter operating temperature range is set by the temperature parameter for testing environment；
Each described corresponding receiver that the tested transmitter is respectively connected within the scope of the model；
The pre-add weight values of the tested transmitter are set to the minimum value in working range and constantly improve pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops improving pre-add when preset threshold requires when the link error rates meet
Weight values and the minimum value that the maximum value of the pre-add weight values of all corresponding receivers is recorded as to lower limit preemphasis window；
The pre-add weight values of the tested transmitter are set to the maximum value in working range and continue to reduce pre-add weight values, are adopted simultaneously
Collect the link error rates under different pre-add weight values, stops reducing pre-add when preset threshold requires when the link error rates meet
Weight values and the maximum value that the minimum value of the pre-add weight values of all corresponding receivers is recorded as to lower limit preemphasis window；
The lower limit preemphasis window is determined according to the minimum value and the maximum value.
5. the method according to claim 3 or 4, which is characterized in that the link of the acquisition under different pre-add weight values misses
Code rate, comprising the following steps:
Data register is connected to the corresponding receiver, acquires the Bit Error Code Statistics information sum number occurred in the test link
According to number of frames；
It reads the data register and obtains the Bit Error Code Statistics information and the number of data frames, and the link is calculated with this
The bit error rate.
6. the method according to claim 3 or 4, which is characterized in that the link of the acquisition under different pre-add weight values misses
Code rate is executed by shell script, and the shell script is stored in the tested transmitter, the corresponding receiver or connection
To in the third party device of the tested transmitter and the corresponding receiver.
7. the method according to claim 3 or 4, which is characterized in that if the pre-add weight values of the tested transmitter are taking
The link error rates meet preset threshold requirement when maximum/minimum in working range, then directly by the maximum value/
Minimum value is recorded as the upper limit preemphasis window/lower limit preemphasis window maximum/minimum.
8. according to the method described in claim 2, it is characterized in that, according to the upper limit preemphasis window and the lower limit pre-add
Weight window determines pre-add weight values, comprising the following steps:
Intersection is taken to the upper limit preemphasis window and the lower limit preemphasis window, determines entirety preemphasis window；
The average value of the maximum value and minimum value that take the whole preemphasis window is as the pre-add weight values.
9. a kind of pre-add weight values value device for the transmitter that serially unstrings characterized by comprising
Tested transmitter；
Corresponding receiver；
The link being connect with the tested transmitter and corresponding receiver；
At least one processor, the processor setting is in the tested transmitter, the corresponding receiver or is connected to described
In the third party device of tested transmitter and the corresponding receiver；With
Memory, the memory are stored with the program code that the processor can be run, and said program code is when being run
Execute the method as described in any one of claim 1-8.
10. a kind of signal communications system that serially unstrings, which is characterized in that including pre-add weight values value as claimed in claim 9
Device.
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| WO2021109224A1 (en) * | 2019-12-02 | 2021-06-10 | Tcl华星光电技术有限公司 | Method and apparatus for processing signal in display panel |
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