CN114254582A - Differential line wiring method, differential line wiring device, electronic device and readable storage medium - Google Patents
Differential line wiring method, differential line wiring device, electronic device and readable storage medium Download PDFInfo
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Abstract
The invention relates to the technical field of PCB design and discloses a differential line wiring method and device, electronic equipment and a readable storage medium. Wherein, the method comprises the following steps: obtaining a differential line width corresponding to the protection device; determining a target connection point of any bonding pad in the protective device based on the differential line width; and based on the target connection point and the line width of the differential line, the differential line is distributed on the bonding pad in a symmetrical mode. By implementing the invention, when one wire in the differential wire is connected with the bonding pad, the wire outlet length and the appearance shape of the differential wire are completely consistent, so that the consistency of the wire width and the distance of the anode and the cathode of the differential wire is ensured, the problem of discontinuous impedance is avoided, and the quality of differential signals is ensured.
Description
Technical Field
The invention relates to the technical field of PCB design, in particular to a differential line wiring method and device, electronic equipment and a readable storage medium.
Background
With the development of technologies such as cloud computing, big data, artificial intelligence and the like, the demand on a server is increasing, and the interfaces of the server for external connection are USB, RJ45, VGA, DP and the like, and the interfaces are generally designed on the edge of a main board, and the edge interface of the main board is combined with a chassis for external interconnection. Because the interface to the external interconnection needs to be manually operated, an electrostatic discharge (ESD) device needs to be disposed on the signal line of the interface to the external interconnection. The pins of the ESD device are distributed as shown in figure 1, one side of the ESD device is provided with 3 pins, the middle pin is grounded, the other 2 pins are respectively connected with the negative pole and the positive pole of the differential line, the other side of the ESD device is provided with 2 pins which are respectively connected with the positive pole and the negative pole of the differential line, and after the connection of the routing lines of the 2 differential pairs and the ESD pins is completed, the electrostatic protection of the server interface can be realized.
As shown in fig. 1, because the pins of the ESD device are not symmetrical, when differential lines are wired, usually one pole of the differential line directly passes through the middle of the pins of the ESD device, the pins of the ESD device are wide, the pitch of the other pole of the differential line becomes smaller, and at the upper and lower positions of the outgoing line of the pin, the pitch between the differential lines becomes larger than the design value, which results in impedance discontinuity, that is, it is difficult to achieve the complete consistency of the wiring width and distance between the positive pole and the negative pole in the differential line wiring in the ESD device, which results in impedance discontinuity of the differential line, and thus quality control of the differential signal is not easy.
Disclosure of Invention
In view of this, embodiments of the present invention provide a differential line routing method, an apparatus, an electronic device, and a readable storage medium, so as to solve the problem that it is difficult to implement the differential line routing in the ESD device that the widths and distances of the positive electrode and the negative electrode are completely consistent, which results in discontinuous impedance of the differential line.
According to a first aspect, an embodiment of the present invention provides a method for routing a differential line, including: obtaining a differential line width corresponding to the protection device; determining a target connection point of any one bonding pad in the protective device based on the differential line width; and based on the target connection point and the differential line width, distributing the differential line on the bonding pad in a symmetrical mode.
According to the wiring method of the differential line provided by the embodiment of the invention, the differential line width corresponding to the protection device is obtained, the target connection point of any one bonding pad in the protection device is determined based on the differential line width, and the differential line is symmetrically distributed on the bonding pad according to the target connection point and the differential line width, so that when one line in the differential line is connected with the bonding pad, the outgoing line length and the appearance shape are completely consistent, the consistency of the routing width and the distance of the anode and the cathode of the differential line is further ensured, the problem of impedance discontinuity is avoided, and the quality of the differential signal is ensured.
With reference to the first aspect, in a first implementation manner of the first aspect, the determining a connection point of any one pad in the protection device based on the differential line width includes: acquiring the intersecting edges of the bonding pads, and determining the corresponding intersecting points of the intersecting edges; and determining a first connection point and a second connection point of the differential line and the intersection edge based on the line width of the differential line and the intersection point, wherein the distances between the first connection point and the intersection point and the second connection point are half of the line width of the differential line.
According to the wiring method of the differential line, provided by the embodiment of the invention, the intersection point corresponding to the intersection edge is determined by obtaining the intersection edge of the bonding pad, and the first connection point and the second connection point of the differential line and the intersection edge are determined based on the line width of the differential line and the intersection point, wherein the distance between the first connection point and the intersection point and the distance between the second connection point and the intersection point are both half of the line width of the differential line, so that the routing width consistency of the differential line on any bonding pad is ensured.
With reference to the first implementation manner of the first aspect, in a second implementation manner of the first aspect, the laying out a differential line on the pad in a symmetrical form based on the target connection point and the differential line width includes: obtaining a central connection point of a bonding pad corresponding to the protective device; generating routing of the differential line on one side of the pad based on the central connection point, the first connection point and the second connection point; and generating the routing of the differential line on the other side of the bonding pad in a symmetrical mode based on the routing of the differential line on one side of the bonding pad.
According to the wiring method of the differential line provided by the embodiment of the invention, the central connection point of the bonding pad corresponding to the protection device is obtained, the routing of the differential line on one side of the bonding pad is generated based on the central connection point, the first connection point and the second connection point, and the routing of the differential line on the other side of the bonding pad is generated in a symmetrical mode, so that the consistency of the width and the distance of the routing of the differential line on the two sides of the bonding pad is ensured, the consistency of the width and the distance of the routing of the differential line on each bonding pad of the protection device is further ensured, and the problem of impedance discontinuity can be avoided.
With reference to the second implementation manner of the first aspect, in a third implementation manner of the first aspect, the generating a trace of the differential line on one side of the pad based on the central connection point, the first connection point, and the second connection point includes: extending the differential line at a first preset angle based on the first connection point and the second connection point to obtain a first extension line; extending the differential line at a second preset angle based on the central connection point of the bonding pad to obtain a second extension line; and when the first extension line and the second extension line are intersected, generating routing of the differential line on one side of the bonding pad.
With reference to the third embodiment of the first aspect, in a fourth embodiment of the first aspect, the first preset angle is 45 ° and the second preset angle is 180 °.
According to the wiring method of the differential line provided by the embodiment of the invention, the differential line is extended at a first preset angle based on the first connection point and the second connection point to obtain a first extended line, the differential line is extended at a second preset angle based on the central connection point of the pad to obtain a second extended line, and when the first extended line and the second extended line are crossed, the routing of the differential line on one side of the pad is generated. The first preset angle is 45 degrees, the second preset angle is 180 degrees, and therefore the consistency of the wiring width and the wiring distance of the differential wires on any bonding pad is further guaranteed.
With reference to the second implementation manner of the first aspect, in a fifth implementation manner of the first aspect, the obtaining a pad center connection point corresponding to the guard device includes: acquiring a central position point of the bonding pad; and generating a circle with the same width as the line width by taking the central position point as a circle center, wherein the circle is the central connecting point of the bonding pad.
According to the wiring method of the differential line provided by the embodiment of the invention, the central position point of the bonding pad is obtained, the central position point is taken as the circle center, the circle with the width equal to the line width is generated, and the circle is taken as the central connection point of the bonding pad, so that the consistency of the routing width of the differential line is ensured.
With reference to the first aspect, in a sixth implementation of the first aspect, the method further includes: acquiring a differential line distance of the differential line on the bonding pad; and based on the differential line distance and the differential line width, the differential lines of other bonding pads in the protective device are laid out, and the outgoing line length and the outgoing line shape of the differential lines on each bonding pad are the same.
According to the wiring method of the differential line provided by the embodiment of the invention, the differential line distance of the differential line on the pad is obtained, the differential lines of other pads in the protective device are laid out based on the differential line distance and the differential line width, and the outgoing line length and the outgoing line shape of the differential line on each pad are the same, so that the outgoing line length of the positive electrode and the outgoing line length of the negative electrode of the differential line are ensured to be consistent on the basis of ensuring the consistency of the routing width and the routing distance of the positive electrode and the negative electrode of the differential line, the transmission delay consistency of the positive electrode and the negative electrode of the differential line is ensured, and the transmission quality of the differential signal is further ensured.
According to a second aspect, an embodiment of the present invention provides a wiring device for a differential line, including: the obtaining module is used for obtaining the differential line width corresponding to the protective device; the determining module is used for determining a target connection point of any one bonding pad in the protective device based on the line width corresponding to the differential line; and the wiring module is used for distributing the differential lines on the bonding pads in a symmetrical mode based on the target connection point and the line width of the differential lines.
According to the wiring device of the differential line, the differential line width corresponding to the protection device is obtained, the target connection point of any one bonding pad in the protection device is determined based on the differential line width, and the differential line is symmetrically distributed on the bonding pad according to the target connection point and the differential line width, so that when one line in the differential line is connected with the bonding pad, the outgoing line length and the outgoing shape are completely consistent, the consistency of the routing width and the distance of the anode and the cathode of the differential line is further ensured, the problem of impedance discontinuity is avoided, and the quality of differential signals is ensured.
According to a third aspect, an embodiment of the present invention provides an electronic device, including: a memory and a processor, wherein the memory and the processor are communicatively connected to each other, the memory stores computer instructions, and the processor executes the computer instructions to perform the method for routing a differential line according to the first aspect or any embodiment of the first aspect.
According to a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, where computer instructions are stored, and the computer instructions are configured to cause a computer to execute the method for routing a differential line according to the first aspect or any of the embodiments of the first aspect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a conventional differential line routing scheme in an embodiment of the present invention;
FIG. 2 is a flow chart of a method of routing differential lines according to an embodiment of the invention;
FIG. 3 is another flow chart of a method of routing differential lines according to an embodiment of the present invention;
FIG. 4 is another flow chart of a method of routing differential lines according to an embodiment of the present invention;
FIG. 5 is a schematic layout of a pad-side differential line according to an embodiment of the present invention;
FIG. 6 is another wiring diagram of a pad-side differential line according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of symmetric routing of pad differential lines according to an embodiment of the invention;
FIG. 8 is another symmetrical routing diagram of a pad differential line according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of the routing of differential lines in a guard device according to an embodiment of the present invention;
fig. 10 is a block diagram of a wiring device of a differential line according to an embodiment of the present invention;
fig. 11 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Because the pins of the ESD device are not symmetrical, as shown in fig. 1, when the differential lines are wired, usually one pole of the differential lines directly passes through the middle of the pins of the ESD device, the pins of the ESD device are wide, the pitch of the other pole of the differential lines becomes small, and at the upper and lower positions of the outgoing line of the pins, the pitch between the differential lines becomes larger than the designed value, which results in impedance discontinuity, i.e., it is difficult to realize the complete agreement between the wiring widths and distances of the positive and negative poles in the differential line wiring in the ESD device, which results in impedance discontinuity of the differential lines.
Based on the technical scheme, the wiring width and the wiring distance of the differential line on the bonding pad are set based on the line width of the differential line, and the wirings of the differential line on the two sides of the bonding pad are symmetrically distributed, so that the consistency of the wiring width and the distance of the anode and the cathode of the differential line is ensured, and the problem of discontinuous impedance is avoided.
In accordance with an embodiment of the present invention, there is provided an embodiment of a differential wire routing method, it should be noted that the steps illustrated in the flowchart of the figure may be performed in a computer system such as a set of computer executable instructions, and that while a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different than here.
In this embodiment, a differential line routing method is provided, which can be used in electronic devices, such as a mobile phone, a tablet computer, a computer, etc., fig. 2 is a flowchart of the differential line routing method according to an embodiment of the present invention, and as shown in fig. 2, the flowchart includes the following steps:
and S11, obtaining the differential line width corresponding to the protective device.
The differential line width is a single line width in the differential line pair, which can be determined based on the actual characteristics of the material. Specifically, the user may input attribute information such as material characteristics of the differential line into the electronic device, and the electronic device may determine the line width of the differential line corresponding to the current differential line pair based on the attribute information such as the material characteristics of the differential line.
And S12, determining the target connection point of any pad in the protective device based on the differential line width.
The target connection point is a routing position point of the differential line on one side of the pad, and the electronic device may determine the routing position point of the differential line on any one pad based on the line width of the differential line and the consistent outgoing line characteristics of the differential line on two sides of the pad, as shown in fig. 5 as the target connection point A, B, C.
And S13, based on the target connection point and the differential line width, the differential line is arranged on the pad in a symmetrical mode.
And generating a differential line layout on one side of the current bonding pad based on the target connection point and the differential line width, finishing the layout of the differential line on the other side of the current bonding pad according to a symmetrical form, and finishing the differential line layout on each bonding pad so as to ensure the consistency of the differential line pair routing width and the routing distance in the protective device.
According to the wiring method of the differential line provided by the embodiment, the differential line width corresponding to the protection device is obtained, the target connection point of any one pad in the protection device is determined based on the differential line width, and the differential line is distributed on each pad in a symmetrical mode according to the target connection point and the differential line width, so that when one line in the differential line is connected with the pad, the outgoing line length and the outgoing shape are completely consistent, the consistency of the routing width and the distance of the positive pole and the negative pole of the differential line is further ensured, the problem of impedance discontinuity is avoided, and the quality of a differential signal is ensured.
In this embodiment, a differential line routing method is provided, which can be used in electronic devices, such as a mobile phone, a tablet computer, a computer, and the like, fig. 3 is a flowchart of the differential line routing method according to an embodiment of the present invention, and as shown in fig. 3, the flowchart includes the following steps:
and S21, obtaining the differential line width corresponding to the protective device. For a detailed description, refer to the related description of step S11 corresponding to the above embodiment, and the detailed description is omitted here.
And S22, determining the target connection point of any pad in the protective device based on the differential line width.
Specifically, the step S22 may include:
s221, acquiring the intersecting edges of the bonding pad, and determining the corresponding intersecting points of the intersecting edges.
The pads are rectangular pads, which for an ESD device have 5 rectangular pads, one of which is used for ground and the remaining four are used to set up a differential line pair. The electronic device may identify the rectangle formed by the pads and obtain the intersection edge corresponding to any right angle of the rectangle to determine the intersection point corresponding to the intersection edge, such as point D shown in fig. 5 and point E shown in fig. 6.
S222, determining a first connection point and a second connection point of the differential line and the intersection edge based on the line width of the differential line and the intersection point, wherein the distance between the first connection point and the intersection point and the distance between the second connection point and the intersection point are both half of the line width of the differential line.
After the intersection point is determined, the line width of the differential line is divided equally on the basis of the intersection point, namely when the differential line is routed in a certain direction at the current pad, a first connection point and a second connection point can be generated between the intersection edges of the differential line and the pad, wherein the first connection point and the second connection point are respectively positioned on two edges corresponding to the intersection edges, namely the first connection point and the second connection point are positioned on different edges, the distance between the intersection point and the first connection point is half of the line width, and the distance between the intersection point and the second connection point is also half of the line width. As shown in fig. 5, if the differential line width is W, the first connection point is point B, the second connection point is point C, and the intersection point is point D, the length of BD and the length of CD are both 0.5W.
And S23, based on the target connection point and the differential line width, the differential line is arranged on the pad in a symmetrical mode.
Specifically, the step S23 may include:
and S231, obtaining a central connection point of the bonding pad corresponding to the protection device.
The central connection point of the bonding pad is a central wiring position point of the differential line, the electronic equipment can identify the central position point of the bonding pad in the protective device, and the central connection point of the bonding pad is generated based on the central position point.
Specifically, the step S231 may include:
(1) and acquiring a central position point of the bonding pad.
The center position point is a center of gravity point of the pad, and after the electronic device identifies each pad in the protection device, the electronic device can further identify a closed graph corresponding to the pad, and then calculate a center of gravity point corresponding to the closed graph, where the center of gravity point is a center position point of the pad, such as a center position point G shown in fig. 5 and a center position point P shown in fig. 6.
(2) And generating a circle with the same width as the line width by taking the central position point as the circle center, and taking the circle as the central connecting point of the bonding pad.
A circle with the same width as the differential line width is generated by taking the central position point as the circle center and taking half of the differential line width as the radius, and the circle is taken as the central connection point of the pad, such as the central connection point a shown in fig. 5 and the central connection point O shown in fig. 6.
And S232, generating a routing of the differential line on one side of the pad based on the central connection point, the first connection point and the second connection point.
The electronic equipment lays out the differential line according to the positions of the central connection point, the first connection point and the second connection point to obtain the routing of the differential line on one side of the current bonding pad. Specifically, the step S232 may include:
(1) and extending the differential line at a first preset angle based on the first connecting point and the second connecting point to obtain a first extending line.
The first preset angle is an extension angle of the differential line when the first connection point and the second connection point of the current bonding pad are laid out. For a rectangular pad, the first predetermined angle may be 45 °, and the extension of 45 ° is performed on the basis of the intersection point, resulting in a first extension line.
(2) And extending the differential line at a second preset angle based on the central connecting point of the bonding pad to obtain a second extending line.
The second preset angle is an extension angle of the differential line when the central connection point of the bonding pad corresponding to the current bonding pad is laid out. For a rectangular pad, the second predetermined angle may be 180 °, and the extension is performed by 180 ° based on the pad center connection point, resulting in a second extension line.
(3) And when the first extension line and the second extension line are intersected, generating a routing of the differential line on one side of the bonding pad.
And respectively extending the first extension line and the second extension line at a first preset angle and a second preset angle until the first extension line and the second extension line are intersected to generate routing of the differential line on one side of the bonding pad. The routing on the other side of the pad can be completed in the same routing manner, thereby ensuring that the shape of the outgoing line is bilaterally symmetrical, as shown in fig. 7 and 8.
And S233, generating the routing of the differential line on the other side of the pad in a symmetrical mode based on the routing of the differential line on one side of the pad.
After the routing of the differential line on one side of the pad is completed, the electronic device generates the routing of the differential line on the other side of the pad based on the characteristic that the routing forms on the two sides are symmetrical based on the central connection point of the pad, and as shown in fig. 7 and 8, the shapes of the differential line routing corresponding to the left side and the right side of the pad are mutually symmetrical, so that the consistency of the routing width and the consistency of the routing distance between the anode of the differential line and the cathode of the differential line in the protection device can be ensured.
In the wiring method of the differential line provided in this embodiment, the intersection point corresponding to the intersection edge is determined by obtaining the intersection edge of the pad, and the first connection point and the second connection point of the differential line and the intersection edge are determined based on the line width of the differential line and the intersection point, where distances between the first connection point and the second connection point and the intersection point are both half of the line width of the differential line, so that the routing width consistency of the differential line on any pad is ensured. Through obtaining the pad central connection point that the protective device corresponds, based on central connection point, first tie point and the second tie point, generate the line of difference line in pad one side to the line of difference line in pad opposite side is generated to the symmetry form, guarantee the difference line from this and walk the line width and walk the uniformity of line distance in pad both sides, and then guarantee the difference line and walk line width uniformity and walk line distance uniformity on each pad of protective device, thereby can avoid producing the discontinuous problem of impedance. The differential line is extended at a first preset angle based on the first connection point and the second connection point to obtain a first extended line, the differential line is extended at a second preset angle based on the central connection point of the bonding pad to obtain a second extended line, and when the first extended line and the second extended line are crossed, routing of the differential line on one side of the bonding pad is generated. The first preset angle is 45 degrees, the second preset angle is 180 degrees, and therefore the consistency of the wiring width and the wiring distance of the differential wires on any bonding pad is further guaranteed. The center position point of the bonding pad is obtained, the center position point is used as the circle center, a circle with the width equal to the line width is generated, and the circle is used as the center connection point of the bonding pad, so that the consistency of the wiring width of the differential line is ensured.
In this embodiment, a differential line routing method is provided, which can be used in electronic devices, such as a mobile phone, a tablet computer, a computer, and the like, fig. 4 is a flowchart of the differential line routing method according to the embodiment of the present invention, and as shown in fig. 4, the flowchart includes the following steps:
and S31, obtaining the differential line width corresponding to the protective device. For a detailed description, refer to the related description of step S11 corresponding to the above embodiment, and the detailed description is omitted here.
And S32, determining the target connection point of any pad in the protective device based on the differential line width. For a detailed description, refer to the related description of step S12 corresponding to the above embodiment, and the detailed description is omitted here.
And S33, based on the target connection point and the differential line width, the differential line is arranged on the pad in a symmetrical mode. For a detailed description, refer to the related description of step S13 corresponding to the above embodiment, and the detailed description is omitted here.
And S34, acquiring the differential line pitch of the differential line on the pad.
The differential line pitch is the distance between the positive and negative poles of the differential line and the bonding pad. The positive pole and the negative pole of the differential line are arranged on two sides of the bonding pad, and the electronic equipment can identify the positive pole and the negative pole of the differential line so as to determine the distance between the positive pole and the negative pole of the differential line and the bonding pad.
And S35, based on the differential line distance and the differential line width, arranging the differential lines of other bonding pads in the protective device, wherein the outgoing line length and the outgoing line shape of the differential lines on each bonding pad are the same.
And sequentially laying out the differential line routing of each pad according to the differential line width and the differential line distance, so that when the differential line at each pad is laid out, the outgoing line length and the outgoing line shape of the anode and the cathode of the differential line are the same, as shown in fig. 9. Therefore, the width and the distance of the wiring are completely consistent, and the impedance continuity and the transmission delay consistency are ensured.
According to the wiring method of the differential line provided by the embodiment, the differential lines of other pads in the protective device are laid out by acquiring the differential line distance of the differential line on the pad based on the differential line distance and the differential line width, and the outgoing line length and the outgoing line shape of the differential line on each pad are the same, so that on the basis of ensuring the consistency of the routing width and the routing distance of the anode and the cathode of the differential line, the consistency of the outgoing line length of the anode and the cathode of the differential line is ensured, the transmission delay consistency of the anode and the cathode of the differential line is ensured, and the transmission quality of the differential signal is further ensured.
In this embodiment, a wiring device for differential lines is further provided, and the device is used to implement the foregoing embodiments and preferred embodiments, and the description of the device is omitted for brevity. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
The present embodiment provides a differential line wiring device, as shown in fig. 10, including:
the obtaining module 41 is configured to obtain a differential line width corresponding to the protection device. For a detailed description, reference is made to the corresponding related description of the above method embodiments, which is not repeated herein.
And the determining module 42 is configured to determine a target connection point of any one pad in the protection device based on the differential line width. For a detailed description, reference is made to the corresponding related description of the above method embodiments, which is not repeated herein.
And a wiring module 43 for laying out the differential lines on the pads in a symmetrical form based on the target connection point and the differential line width. For a detailed description, reference is made to the corresponding related description of the above method embodiments, which is not repeated herein.
The wiring device for the differential line provided by this embodiment determines the target connection point of any one pad in the protection device based on the differential line width by obtaining the differential line width corresponding to the protection device, and lays out the differential line on each pad in a symmetrical manner according to the target connection point and the differential line width, thereby ensuring that the outgoing line length and the appearance shape of one line in the differential line are completely consistent when the one line is connected with the pad, further ensuring the consistency of the routing width and the distance between the positive electrode and the negative electrode of the differential line, avoiding the problem of impedance discontinuity, and further ensuring the quality of the differential signal.
The differential line routing means in this embodiment is in the form of functional units, where a unit refers to an ASIC circuit, a processor and memory executing one or more software or fixed programs, and/or other devices that can provide the above-described functionality.
Further functional descriptions of the modules are the same as those of the corresponding embodiments, and are not repeated herein.
An embodiment of the present invention further provides an electronic device having a wiring device of a differential line shown in fig. 10.
Referring to fig. 11, fig. 11 is a schematic structural diagram of an electronic device according to an alternative embodiment of the present invention, and as shown in fig. 11, the electronic device may include: at least one processor 501, such as a CPU (Central Processing Unit), at least one communication interface 503, memory 504, and at least one communication bus 502. Wherein a communication bus 502 is used to enable connective communication between these components. The communication interface 503 may include a Display (Display) and a Keyboard (Keyboard), and the optional communication interface 503 may also include a standard wired interface and a standard wireless interface. The Memory 504 may be a Random Access Memory (RAM) or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The memory 504 may optionally be at least one storage device located remotely from the processor 501. Wherein the processor 501 may be in connection with the apparatus described in fig. 10, an application program is stored in the memory 504, and the processor 501 calls the program code stored in the memory 504 for performing any of the above-mentioned method steps.
The communication bus 502 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The communication bus 502 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 11, but this is not intended to represent only one bus or type of bus.
The memory 504 may include a volatile memory (RAM), such as a random-access memory (RAM); the memory may also include a non-volatile memory (english: non-volatile memory), such as a flash memory (english: flash memory), a hard disk (english: hard disk drive, abbreviated: HDD) or a solid-state drive (english: SSD); the memory 504 may also comprise a combination of the above types of memory.
The processor 501 may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of CPU and NP.
The processor 501 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
Optionally, the memory 504 is also used to store program instructions. The processor 501 may call program instructions to implement the differential line routing method as shown in the embodiments of fig. 1 to 3 of the present application.
The embodiment of the invention also provides a non-transitory computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions can execute the processing method of the wiring method of the differential line in any method embodiment. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD), a Solid State Drive (SSD), or the like; the storage medium may also comprise a combination of memories of the kind described above.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations fall within the scope defined by the appended claims.
Claims (10)
1. A differential wiring method, comprising:
obtaining a differential line width corresponding to the protection device;
determining a target connection point of any one bonding pad in the protective device based on the differential line width;
and based on the target connection point and the differential line width, distributing the differential line on the bonding pad in a symmetrical mode.
2. The method of claim 1, wherein determining a connection point of any one pad in the guard device based on the differential line width comprises:
acquiring the intersecting edges of the bonding pads, and determining the corresponding intersecting points of the intersecting edges;
and determining a first connection point and a second connection point of the differential line and the intersection edge based on the line width of the differential line and the intersection point, wherein the distances between the first connection point and the intersection point and the second connection point are half of the line width of the differential line.
3. The method of claim 2, wherein the symmetrically laying out differential lines on the pad based on the target connection point and the differential line width comprises:
obtaining a central connection point of a bonding pad corresponding to the protective device;
generating routing of the differential line on one side of the pad based on the central connection point, the first connection point and the second connection point;
and generating the routing of the differential line on the other side of the bonding pad in a symmetrical mode based on the routing of the differential line on one side of the bonding pad.
4. The method of claim 3, wherein generating the differential line trace on the pad side based on the central connection point, the first connection point, and the second connection point comprises:
extending the differential line at a first preset angle based on the first connection point and the second connection point to obtain a first extension line;
extending the differential line at a second preset angle based on the central connection point of the bonding pad to obtain a second extension line;
and when the first extension line and the second extension line are intersected, generating routing of the differential line on one side of the bonding pad.
5. The method according to claim 4, characterized in that said first preset angle is 45 ° and said second preset angle is 180 °.
6. The method of claim 3, wherein obtaining the pad center connection point corresponding to the guard device comprises:
acquiring a central position point of the bonding pad;
and generating a circle with the same width as the line width of the differential line by taking the central position point as the circle center, wherein the circle is the central connecting point of the bonding pad.
7. The method of claim 1, further comprising:
acquiring a differential line distance of the differential line on the bonding pad;
and based on the differential line distance and the differential line width, the differential lines of other bonding pads in the protective device are laid out, and the outgoing line length and the outgoing line shape of the differential lines on each bonding pad are the same.
8. A wiring device for differential lines, comprising:
the obtaining module is used for obtaining the differential line width corresponding to the protective device;
the determining module is used for determining a target connection point of any one bonding pad in the protective device based on the line width corresponding to the differential line;
and the wiring module is used for distributing the differential lines on the bonding pads in a symmetrical mode based on the target connection point and the line width of the differential lines.
9. An electronic device, comprising:
a memory and a processor, wherein the memory and the processor are communicatively connected with each other, the memory stores computer instructions, and the processor executes the computer instructions to execute the differential line routing method according to any one of claims 1 to 7.
10. A computer-readable storage medium storing computer instructions for causing a computer to execute the method of routing a differential line according to any one of claims 1 to 7.
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| CN202111399576.6A CN114254582B (en) | 2021-11-19 | 2021-11-19 | Differential line wiring method, differential line wiring device, electronic device, and readable storage medium |
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| CN202111399576.6A CN114254582B (en) | 2021-11-19 | 2021-11-19 | Differential line wiring method, differential line wiring device, electronic device, and readable storage medium |
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