CN110378062A - A kind of the pin wiring inspection method and relevant apparatus of differential lines - Google Patents
A kind of the pin wiring inspection method and relevant apparatus of differential lines Download PDFInfo
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- CN110378062A CN110378062A CN201910684172.8A CN201910684172A CN110378062A CN 110378062 A CN110378062 A CN 110378062A CN 201910684172 A CN201910684172 A CN 201910684172A CN 110378062 A CN110378062 A CN 110378062A
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- inspection
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- dielectric thickness
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/30—Circuit design
- G06F30/39—Circuit design at the physical level
- G06F30/398—Design verification or optimisation, e.g. using design rule check [DRC], layout versus schematics [LVS] or finite element methods [FEM]
Abstract
This application discloses a kind of pin wiring inspection methods of differential lines, comprising: obtains signal wire to be checked；Inspection distance is calculated according to the dielectric thickness in the laminated construction of the signal wire to be checked；Inspection area is constructed using the signal wire to be checked as center line according to the inspection distance；Judge in the inspection area with the presence or absence of differential signal line；If so, using the differential signal line as both differential signal wire.Inspection distance is calculated by the dielectric thickness in the corresponding laminated structure of signal wire to be checked that gets, then to check that distance and signal wire construct inspection area as center line, it finally realizes and the differential lines in inspection area is checked, realize the automation inspection to differential lines, inspection efficiency is improved, the precision and accuracy rate of inspection are maintained.Disclosed herein as well is pin wiring check device, computer equipment and the computer readable storage mediums of a kind of differential lines, have the above beneficial effect.
Description
Technical field
This application involves field of computer technology, in particular to the pin wiring inspection method of a kind of differential lines, pin are walked
Ray detection device, computer equipment and computer readable storage medium.
Background technique
Currently, usually first the pin of chip is designed and is examined in advance using software for calculation in chip design field
It looks into.It in general, the pin number in chip is numerous, and is to retain cabling that is unused, and retaining pin there are the pin of part
The signal of normal high-speed-differential cabling may be will affect.For example, a reservation pin and a pair of of high-speed differential signal wire pin
It is adjacent, and equidirectional outlet simultaneously will lead to then this retains the noise that the signal wire that pin pulls out introduces differential lines
Two in differential lines are experienced inconsistent.It is, closing on a string experienced for retaining the differential lines of leg signal line
It disturbs greatly, another crosstalk experienced far from the differential lines for retaining leg signal line is small.In order to avoid retaining pin wiring pair
High-speed differential signal cabling influences, then needs especially to design the progress for retaining pin wiring.
In the prior art, in order to avoid crosstalk leads to the imbalance between two of differential lines, usually to retain pin into
The stringent wiring of row, and sufficient cloth ray examination is carried out to wiring.It is still manually to be examined to pcb board in currently available technology
It looks into.But the cabling in general PCB is numerous, not only needs to expend by manually checking the reservation pin wiring in PCB
A large amount of human costs and time cost reduce efficiency, not can avoid careless omission and mistake that manual inspection occurs also, reduce precision and
Accuracy rate.
Therefore, the emphasis that the efficiency of the pin wiring inspection to differential lines is those skilled in the art's concern how is improved to ask
Topic.
Summary of the invention
The purpose of the application is to provide a kind of pin wiring inspection method of differential lines, pin wiring check device, calculates
Machine equipment and computer readable storage medium are thick by the medium in the corresponding laminated structure of signal wire to be checked that gets
Degree calculates inspection distance, then to check that distance and signal wire construct inspection area as center line, finally realizes to inspection
Differential lines in region are checked, the automation inspection to differential lines is realized, and are improved inspection efficiency, are maintained inspection
Precision and accuracy rate.
In order to solve the above technical problems, the application provides a kind of pin wiring inspection method of differential lines, comprising:
Obtain signal wire to be checked；
Inspection distance is calculated according to the dielectric thickness in the laminated construction of the signal wire to be checked；
Inspection area is constructed using the signal wire to be checked as center line according to the inspection distance；
Judge in the inspection area with the presence or absence of differential signal line；
If so, using the differential signal line as both differential signal wire.
Optionally, inspection distance is calculated according to the dielectric thickness in the laminated construction of the signal wire to be checked, comprising:
Obtain the dielectric thickness in the laminated construction；
Corresponding calculating operation is determined according to the level of the signal wire to be checked, and the meter is executed to the dielectric thickness
Operation is calculated, the inspection distance is obtained.
Optionally, corresponding calculating operation is determined according to the level of the signal wire to be checked, the dielectric thickness is held
The row calculating operation, obtains the inspection distance, comprising:
When the level of the signal wire to be checked is outer layer, the dielectric thickness is multiplied to obtain with the first predetermined coefficient
The inspection distance.
Optionally, corresponding calculating operation is determined according to the level of the signal wire to be checked, the dielectric thickness is held
The row calculating operation, obtains the inspection distance, comprising:
When the level of the signal wire to be checked is internal layer, the dielectric thickness is multiplied to obtain with the second predetermined coefficient
The inspection distance.
Optionally, inspection area is constructed using the signal wire to be checked as center line according to the inspection distance, comprising:
Get the cabling origin coordinates of each section of cabling in the signal wire to be checked；
It is rectangular centre line according to the line of all cabling origin coordinates, with the inspection distance for rectangle side length,
Rectangular area building processing is carried out, the inspection area is obtained.
The application also provides a kind of pin wiring check device of differential lines, comprising:
Signal wire obtains module, for obtaining signal wire to be checked；
It checks distance calculation module, is calculated for the dielectric thickness in the laminated construction according to the signal wire to be checked
Check distance；
Inspection area constructs module, for being constructed according to the inspection distance using the signal wire to be checked as center line
Inspection area；
Judgment module, for judging in the inspection area with the presence or absence of differential signal line；
Inspection result obtains module, for when in the inspection area there are when differential signal line, by the differential signal
Line is as both differential signal wire.
Optionally, the inspection distance calculation module, comprising:
Dielectric thickness acquiring unit, for obtaining the dielectric thickness in the laminated construction；
Check metrics calculation unit, it is right for determining corresponding calculating operation according to the level of the signal wire to be checked
The dielectric thickness executes the calculating operation, obtains the inspection distance.
Optionally, the inspection area constructs module, comprising:
Coordinate acquiring unit, for getting the cabling origin coordinates of each section of cabling in the signal wire to be checked；
Region construction unit, for being rectangular centre line according to the line of all cabling origin coordinates, with the inspection
Looking into distance is rectangle side length, carries out rectangular area building processing, obtains the inspection area.
The application also provides a kind of computer equipment, comprising:
Memory, for storing computer program；
Processor, the step of pin wiring inspection method as described above is realized when for executing the computer program.
The application also provides a kind of computer readable storage medium, and calculating is stored on the computer readable storage medium
The step of machine program, the computer program realizes pin wiring inspection method as described above when being executed by processor.
The pin wiring inspection method of a kind of differential lines provided herein, comprising: obtain signal wire to be checked；According to
Dielectric thickness in the laminated construction of the signal wire to be checked calculates inspection distance；According to the inspection distance with it is described to
Check that signal wire is that center line constructs inspection area；Judge in the inspection area with the presence or absence of differential signal line；If so,
Using the differential signal line as both differential signal wire.
Calculate inspection distance by the dielectric thickness in the overlapping shelf structure of the signal wire to be checked got, then with to
Line constructs inspection area centered on checking signal wire, finally judges with the presence or absence of differential signal line in inspection area, if so,
Then indicate that in the presence of the differential signal line that can generate crosstalk, inspection does not pass through, needs to be adjusted wiring, realizes and carries out to wiring
Automation inspection is avoided being realized cloth ray examination by the way of artificial, improves the efficiency of inspection, and maintains the essence of inspection
Degree and accuracy.
The application also provides the pin wiring check device, computer equipment and computer-readable storage of a kind of differential lines
Medium has the above beneficial effect, and therefore not to repeat here.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, 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
The embodiment of application for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the flow chart of the pin wiring inspection method of the first differential lines provided by the present application；
Fig. 2 is a kind of structural schematic diagram of the pin wiring check device of differential lines provided by the embodiments of the present application.
Specific embodiment
The core of the application is to provide a kind of pin wiring inspection method of differential lines, pin wiring check device, calculates
Machine equipment and computer readable storage medium are thick by the medium in the corresponding laminated structure of signal wire to be checked that gets
Degree calculates inspection distance, then to check that distance and signal wire construct inspection area as center line, finally realizes to inspection
Differential lines in region are checked, the automation inspection to differential lines is realized, and are improved inspection efficiency, are maintained inspection
Precision and accuracy rate.
To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application
In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is
Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall in the protection scope of this application.
In the prior art, in order to avoid crosstalk leads to the imbalance between two of differential lines, usually to retain pin into
The stringent wiring of row, and sufficient cloth ray examination is carried out to wiring.It is still manually to be examined to pcb board in currently available technology
It looks into.But the cabling in general PCB is numerous, not only needs to expend by manually checking the reservation pin wiring in PCB
A large amount of human costs and time cost reduce efficiency, not can avoid careless omission and mistake that manual inspection occurs also, reduce precision and
Accuracy rate.
Therefore, the application provides a kind of pin wiring inspection method of differential lines, passes through the signal wire to be checked got
Overlapping shelf structure in dielectric thickness calculate inspection distance, then line constructs test zone centered on signal wire to be checked
Domain finally judges with the presence or absence of differential signal line in inspection area, if so, indicating in the presence of the differential signal that can generate crosstalk
Line, inspection do not pass through, need to be adjusted wiring, realize and carry out automation inspection to wiring, avoid by the way of artificial
It realizes cloth ray examination, improves the efficiency of inspection, and maintain the precision and accuracy of inspection.
Referring to FIG. 1, Fig. 1 is the flow chart of the pin wiring inspection method of the first differential lines provided by the present application.
In the present embodiment, this method may include:
S101 obtains signal wire to be checked；
This step is intended to get signal wire to be checked, it is, determining the signal wire checked.In general,
The differential lines for causing crosstalk around the cabling mainly are searched on the basis of retaining pin wiring in the present embodiment, it therefore, should be to
Check that signal wire generally retains pin wiring.It however, it can be other signal wires, to realize to around other signal wires
A point poor line checked.
S102 calculates inspection distance according to the dielectric thickness in the laminated construction of signal wire to be checked；
On the basis of S101, this step is intended to the calculating of the dielectric thickness in the laminated construction according to the signal wire to be checked
The inspection distance checked out.In general, being to adopt during manually checking reservation pin wiring and differential lines
With fixed inspection distance, that is, no matter the level that signal wire to be checked is in is internal layer or outer layer, is all made of consistent
Check that distance is checked.But since in the stepped construction of PCB, signal wire is in level difference, and differential lines and reservation are drawn
The influence generated between foot cabling is also different.Therefore, in this step in order to cope with different medium thickness generation difference, according to
Check that the dielectric thickness in the laminated construction of signal wire calculates inspection distance.
Wherein, specifically, can be the level for first determining signal wire to be checked, then according to the corresponding coefficient of the level and
Dielectric thickness is multiplied, and obtains checking distance.
Optionally, this step may include:
Step 1 obtains the dielectric thickness in laminated construction；
Step 2 determines corresponding calculating operation according to the level of signal wire to be checked, executes to dielectric thickness and calculates behaviour
Make, obtains checking distance.
As it can be seen that this optinal plan is mainly to be described further to the calculating for how carrying out inspection distance.Namely in root
Determine the inspection distance checked, according to the level where signal wire to be checked to improve the precision for checking distance.
Optionally, the level according to signal wire to be checked in the present embodiment determines corresponding calculating operation, to medium thickness
Degree executes calculating operation, obtains checking distance, may include: when the level of signal wire to be checked is outer layer, by dielectric thickness
It is multiplied to obtain with the first predetermined coefficient and checks distance；When the level of signal wire to be checked is internal layer, by dielectric thickness and second
Predetermined coefficient, which is multiplied to obtain, checks distance.
Wherein, the first predetermined coefficient and the second predetermined coefficient can be the coefficient determined according to the information of user's input, also
It can be the coefficient determined according to historical experience, be also possible to fixed coefficient.But regardless of coefficient, by this step
Different levels can be according to signal wire and get different inspection distances, to realize that the inspection for being directed to different situations is grasped
Make.
S103 constructs inspection area by center line of signal wire to be checked according to inspection distance；
On the basis of S102, this step is intended to according to inspection distance to check that signal wire constructs test zone as center line
Domain.
Optionally, this step may include:
Step 1 gets the cabling origin coordinates of each section of cabling in signal wire to be checked；
Step 2 is rectangular centre line according to the line of all cabling origin coordinates, with inspection distance for rectangle side length, into
Row rectangular area building processing, obtains inspection area.
As it can be seen that being mainly described further to how constructing inspection area in this optinal plan.It can be with by this step
It determines the range checked, and then the signal wire within the scope of this is judged.
S104 judges in inspection area with the presence or absence of differential signal line；If so, executing S105；If it is not, then executing
S106；
On the basis of S103, with the presence or absence of differential signal line in the inspection area that this step is intended to judge to construct.Tool
Body, judge all signal wires in inspection area with the presence or absence of attribute for the signal wire of differential lines.If so, indicating in the inspection
It looks into region and exists and may be checked and not passed through by the signal wire of crosstalk；If not, then it represents that there is no may be by the signal of crosstalk
Line indicates that inspection passes through.
S105, using differential signal line as both differential signal wire；
S106 generates inspection and passes through message.
It should be noted that the execution step of the pin wiring inspection method of differential lines shown in FIG. 1 is only the application reality
A kind of way of realization provided by example is applied, not uniquely.Therefore, each step execution sequence can be set according to actual needs,
The application does not limit this.
To sum up, the dielectric thickness that the present embodiment passes through in the overlapping shelf structure of the signal wire to be checked got calculates inspection
Distance, then line constructs inspection area centered on signal wire to be checked, finally judges in inspection area with the presence or absence of poor
Sub-signal line, if so, indicate that, in the presence of the differential signal line that can generate crosstalk, inspection does not pass through, needs to be adjusted wiring,
It realizes and automation inspection is carried out to wiring, avoid realizing cloth ray examination by the way of artificial, improve the efficiency of inspection, and
Maintain the precision and accuracy of inspection.
Below by way of a specific embodiment, a kind of pin wiring inspection method of differential lines provided by the present application is done
It further illustrates.
In the present embodiment, this method is realized by multiple units, specifically may include:
Selection signal line unit gets signal wire to be checked for getting user's input checking information.Specifically
, user click selection signal line unit button, search interface input the signal wire to be checked, can keyword it is also complete
Signal name filters out signal name, then clicks or clicks one by one all signal wires, signal wire is moved in choice box, clicks
It determines, homepage can be passed back to.
User sets rules unit, for getting the pitch requirements of cabling time.User's input closes on reservation pin and walks
The pitch requirements of line, divide ectonexine.Wherein H is the dielectric thickness that signals layer distance is closed between reference layer.Divide in the present embodiment
Laminated construction is checked, rather than generally one pitch requirements of setting.Because ectonexine distance is closed on for multi-layer board
The dielectric thickness of reference layer is different, is equally internal layer, and the dielectric thickness of the neighbouring reference layer of distance is also not necessarily consistent, improves and checks
Levels of precision.
Inspection unit, for carrying out inspection processing.The laminated information for extracting PCB first, obtains every layer signal line and closes on
The distance between reference layer H, is recorded in database, spare.Then according to the signal wire of selection, its id information of Program extraction,
And then the pin of its connection is inquired, via hole, per a bit of cabling information (ID, origin coordinates, layer including every a bit of cabling
Face etc.).According to cabling origin coordinates, using the line of origin coordinates as rectangular centre line, in terms of the ectonexine requirement of user's input
The length of calculation is the side of rectangle, draws rectangular area, searches the signal wire in this region, if there is the signal of differential nature
Line is then recorded in database, if nothing, continues next inspection.
Unit as the result is shown, for showing inspection result.It, can be the wiring of withed a hook at the end pin by checking
Information is shown in result unit and checks for user.
Audit report generation unit, for generating audit report.By checking, inspection result can also be stored to text
In document, it is convenient for subsequent access.
The dielectric thickness that the embodiment of the present application passes through in the overlapping shelf structure of the signal wire to be checked got calculates inspection
Distance, then line constructs inspection area centered on signal wire to be checked, finally judges in inspection area with the presence or absence of poor
Sub-signal line, if so, indicate that, in the presence of the differential signal line that can generate crosstalk, inspection does not pass through, needs to be adjusted wiring,
It realizes and automation inspection is carried out to wiring, avoid realizing cloth ray examination by the way of artificial, improve the efficiency of inspection, and
Maintain the precision and accuracy of inspection.
A kind of pin wiring check device of differential lines provided by the embodiments of the present application is introduced below, is described below
The pin wiring check devices of differential lines a kind of can be mutual with a kind of above-described pin wiring inspection method of differential lines
To should refer to.
Referring to FIG. 2, Fig. 2 is that a kind of structure of the pin wiring check device of differential lines provided by the embodiments of the present application is shown
It is intended to.
In the present embodiment, the apparatus may include:
Signal wire obtains module 100, for obtaining signal wire to be checked；
It checks distance calculation module 200, is calculated for the dielectric thickness in the laminated construction according to signal wire to be checked
Check distance；
Inspection area constructs module 300, for constructing inspection by center line of signal wire to be checked according to inspection distance
Region；
Judgment module 400, for judging in inspection area with the presence or absence of differential signal line；
Inspection result obtains module 500, for when in inspection area there are when differential signal line, using differential signal line as
Both differential signal wire.
Optionally, the inspection distance calculation module 200 may include:
Dielectric thickness acquiring unit, for obtaining the dielectric thickness in laminated construction；
Metrics calculation unit is checked, for determining corresponding calculating operation according to the level of signal wire to be checked, to medium
Thickness executes calculating operation, obtains checking distance.
Optionally, which constructs module 300, may include:
Coordinate acquiring unit, for getting the cabling origin coordinates of each section of cabling in signal wire to be checked；
Region construction unit, for being rectangular centre line according to the line of all cabling origin coordinates, to check that distance is
Rectangle side length carries out rectangular area building processing, obtains inspection area.
The embodiment of the present application also provides a kind of computer equipment, comprising:
Memory, for storing computer program；
Processor realizes pin wiring inspection method as described above in Example when for executing the computer program
The step of.
The embodiment of the present application also provides a kind of computer readable storage medium, stores on the computer readable storage medium
There is computer program, the computer program realizes pin wiring reviewing party as described above in Example when being executed by processor
The step of method.
The computer readable storage medium may include: USB flash disk, mobile hard disk, read-only memory (Read-Only
Memory, ROM), random access memory (Random Access Memory, RAM), magnetic or disk etc. is various to deposit
Store up the medium of program code.
Each embodiment is described in a progressive manner in specification, the highlights of each of the examples are with other realities
The difference of example is applied, the same or similar parts in each embodiment may refer to each other.For device disclosed in embodiment
Speech, since it is corresponded to the methods disclosed in the examples, so being described relatively simple, related place is referring to method part illustration
?.
Professional further appreciates that, unit described in conjunction with the examples disclosed in the embodiments of the present disclosure
And algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware and
The interchangeability of software generally describes each exemplary composition and step according to function in the above description.These
Function is implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Profession
Technical staff can use different methods to achieve the described function each specific application, but this realization is not answered
Think beyond scope of the present application.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can directly be held with hardware, processor
The combination of capable software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
Above to a kind of pin wiring inspection method of differential lines provided herein, pin wiring check device, meter
It calculates machine equipment and computer readable storage medium is described in detail.Original of the specific case to the application used herein
Reason and embodiment are expounded, and the present processes that the above embodiments are only used to help understand and its core are thought
Think.It should be pointed out that for those skilled in the art, under the premise of not departing from the application principle, may be used also
With to the application, some improvement and modification can also be carried out, these improvement and modification are also fallen into the protection scope of the claim of this application.
Claims (10)
1. a kind of pin wiring inspection method of differential lines characterized by comprising
Obtain signal wire to be checked；
Inspection distance is calculated according to the dielectric thickness in the laminated construction of the signal wire to be checked；
Inspection area is constructed using the signal wire to be checked as center line according to the inspection distance；
Judge in the inspection area with the presence or absence of differential signal line；
If so, using the differential signal line as both differential signal wire.
2. pin wiring inspection method according to claim 1, which is characterized in that according to the folded of the signal wire to be checked
Dielectric thickness in layer structure calculates inspection distance, comprising:
Obtain the dielectric thickness in the laminated construction；
Corresponding calculating operation is determined according to the level of the signal wire to be checked, and the calculating is executed to the dielectric thickness and is grasped
Make, obtains the inspection distance.
3. pin wiring inspection method according to claim 2, which is characterized in that according to the layer of the signal wire to be checked
Face determines corresponding calculating operation, executes the calculating operation to the dielectric thickness, obtains the inspection distance, comprising:
When the level of the signal wire to be checked is outer layer, the dielectric thickness is multiplied with the first predetermined coefficient obtain described in
Check distance.
4. pin wiring inspection method according to claim 2, which is characterized in that according to the layer of the signal wire to be checked
Face determines corresponding calculating operation, executes the calculating operation to the dielectric thickness, obtains the inspection distance, comprising:
When the level of the signal wire to be checked is internal layer, the dielectric thickness is multiplied with the second predetermined coefficient obtain described in
Check distance.
5. pin wiring inspection method according to claim 1, which is characterized in that according to the inspection distance with it is described to
Check that signal wire is that center line constructs inspection area, comprising:
Get the cabling origin coordinates of each section of cabling in the signal wire to be checked；
It is rectangular centre line according to the line of all cabling origin coordinates, with the inspection distance for rectangle side length, carries out
Rectangular area building processing, obtains the inspection area.
6. a kind of pin wiring check device of differential lines characterized by comprising
Signal wire obtains module, for obtaining signal wire to be checked；
It checks distance calculation module, calculates inspection for the dielectric thickness in the laminated construction according to the signal wire to be checked
Distance；
Inspection area constructs module, for constructing inspection using the signal wire to be checked as center line according to the inspection distance
Region；
Judgment module, for judging in the inspection area with the presence or absence of differential signal line；
Inspection result obtains module, for when, there are when differential signal line, the differential signal line being made in the inspection area
For both differential signal wire.
7. pin wiring check device according to claim 6, which is characterized in that the inspection distance calculation module, packet
It includes:
Dielectric thickness acquiring unit, for obtaining the dielectric thickness in the laminated construction；
Metrics calculation unit is checked, for determining corresponding calculating operation according to the level of the signal wire to be checked, to described
Dielectric thickness executes the calculating operation, obtains the inspection distance.
8. pin wiring check device according to claim 6, which is characterized in that the inspection area constructs module, packet
It includes:
Coordinate acquiring unit, for getting the cabling origin coordinates of each section of cabling in the signal wire to be checked；
Region construction unit, for according to the line of all cabling origin coordinates be rectangular centre line, with it is described check away from
From for rectangle side length, rectangular area building processing is carried out, the inspection area is obtained.
9. a kind of computer equipment characterized by comprising
Memory, for storing computer program；
Processor realizes such as pin wiring inspection described in any one of claim 1 to 5 when for executing the computer program
The step of method.
10. a kind of computer readable storage medium, which is characterized in that be stored with computer on the computer readable storage medium
Program realizes such as pin wiring reviewing party described in any one of claim 1 to 5 when the computer program is executed by processor
The step of method.
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| CN201910684172.8A CN110378062A (en) | 2019-07-26 | 2019-07-26 | A kind of the pin wiring inspection method and relevant apparatus of differential lines |
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| CN201910684172.8A CN110378062A (en) | 2019-07-26 | 2019-07-26 | A kind of the pin wiring inspection method and relevant apparatus of differential lines |
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