CN111368499B - Part pin routing direction checking method, device, equipment and storage medium - Google Patents

Abstract

The invention discloses a method, device, equipment and storage medium for checking the wiring direction of part pins. The method includes: acquiring the coordinates of the center points of all pins of a part; and calculating the coordinates of the center point O of the part according to the coordinates of the center points of the pins ;Get the coordinates of the two ends of the line segment connected to the pin, mark the end point overlapping with the center point of the pin as A, and mark the other end point as B; compare the lengths of OA and OB, if OA<OB, the routing direction meets the design requirements; if OA>OB, the wiring direction does not meet the design requirements. The device includes: a pin coordinate acquisition unit, a part coordinate calculation unit, a line end point judgment unit and a line direction judgment unit. The method, device, equipment and storage medium for checking the wiring direction of parts pins disclosed in the present invention can overcome the blind spots of engineers manually pulling wires, improve the correctness of wiring directions, and further improve the quality of signal transmission.

Description

Method, device, equipment and storage medium for checking component pin routing direction

technical field

The invention relates to the field of design, in particular to a method, device, equipment and storage medium for checking the wiring direction of part pins.

Background technique

Printed circuit board (Printed Circuit Board, PCB) is the earliest used paper-based copper-clad printed circuit board. Since the advent of semiconductor transistors in the 1950s, the demand for PCBs has risen sharply. Especially with the rapid development and wide application of integrated circuits, the volume of electronic equipment is getting smaller and smaller, and the circuit wiring density and difficulty are getting bigger and bigger, which requires the PCB to be updated continuously. At present, the variety of PCB has developed from single-sided to double-sided, multi-layered and flexible boards; structure and quality have also developed to ultra-high density, miniaturization and high reliability; new design methods, design supplies and boards Materials and plate-making processes continue to emerge.

In recent years, there have been a variety of computer-aided design PCB application software on the market. Among them, Cadence is the most widely used PCB design software in the industry. It has powerful functions and a variety of related software as support, and also provides open two Secondary development interface and relatively complete development language library, users can carry out secondary development according to their own needs. Cadence software has built-in skill language based on C language and LISP language. Cadence provides rich interactive functions for skill language, which can be used to write design application tools, which can greatly improve work efficiency.

During PCB layout (Layout), the routing direction of the line segments connected to the pins of each component will affect the quality of signal transmission. If the routing direction is wrong, there will be problems of stubs and line reflections. For inexperienced PCB layout engineers, the problem of routing in the wrong direction may occur when routing.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the present invention proposes a method, device, equipment and storage medium for checking the wiring direction of parts pins, which can overcome the blind spots of engineers manually pulling wires, improve the correctness of wiring directions, and further improve the quality of signal transmission.

To achieve the above object, the present invention adopts the following technical solutions:

A method for checking the wiring direction of part pins, comprising:

Get the coordinates of the center point of all pins of the part;

Calculate the coordinates of the center point O of the part according to the coordinates of the pin center point;

Obtain the coordinates of the two ends of the line segment connected to the pin, the overlapping end point with the pin center point is marked as A, and the other end point is marked as B;

Compare the lengths of OA and OB. If OA<OB, the wiring direction meets the design requirements;

If OA>OB, the wiring direction does not meet the design requirements.

Further, the center point coordinates of all pins of the obtained part include:

Get the DBID of the part and store it in the sequence symbol;

Traverse the array symbol and store the center point coordinates of all pins in the array listA.

Further, the described coordinates of calculating the part center point O according to the pin center point coordinates, including:

Traverse the elements in the array listA, store the coordinate X value in the array listX, and store the coordinate Y value in the array listY;

Sort the elements in the array listX to find the maximum value Xmax and the minimum value Xmin;

Sort the elements in the array listY to find the maximum value Ymax and the minimum value Ymin;

The coordinate X value of the center point O of the part is (Xmax+Xmin)/2, and the coordinate Y value is (Ymax+Ymin)/2.

Further, the acquisition of the coordinates of the two ends of the line segment connected to the pin includes:

Obtain the cline segment connected to the pin through the function axlDBGetConnect.

Further, for the routing segment whose routing direction does not meet the design requirements, the routing segment is lit.

The device for checking the wiring direction of parts pins provided by the present invention includes:

The pin coordinate acquisition unit is used to acquire the center point coordinates of all pins of the part;

The part coordinate calculation unit is used to calculate the coordinates of the part center point O according to the coordinates of the pin center point;

The line end point judgment unit is used to judge the end point connecting the line segment and the pin center point;

The wiring direction judgment unit is used to judge whether the wiring direction meets the design requirements.

The device for checking the wiring direction of parts pins provided by the present invention is characterized in that it includes:

memory for storing computer programs;

The processor is configured to implement the steps of the above-mentioned method for checking the wiring direction of part pins when executing the computer program.

The present invention provides a storage medium, wherein a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned method for checking the wiring direction of a component pin are implemented.

The beneficial effects of the present invention are:

The present invention provides a method, device, equipment and storage medium for checking the wiring direction of parts pins, which solves the problem of wrong pin wiring directions due to the lack of experience of PCB Layout engineers in the process of PCB wiring design, which in turn affects the signal. transmission quality issues. Through the skill program to automatically check the wiring direction of the parts pins, it can quickly and accurately find the wrong wirings with the wiring direction toward the parts. For the motherboard with a large number of parts, the inspection work efficiency is greatly improved, and the quality of the signal transmission is guaranteed.

Description of drawings

Fig. 1 is the flow chart of the method for checking the wiring direction of part pins of the present invention;

Fig. 2 is a schematic diagram of the structure of parts of the present invention;

FIG. 3 is a schematic structural diagram of a device for checking the wiring direction of a component pin according to the present invention.

Detailed ways

In order to clearly illustrate the technical features of the solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and/or letters in different instances. This repetition is for the purpose of simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted from the present invention to avoid unnecessarily limiting the present invention.

As shown in FIG. 1 , an embodiment of the present invention discloses a method for checking the wiring direction of part pins, including:

Get the coordinates of the center point of all pins of the part;

Calculate the coordinates of the center point O of the part according to the coordinates of the pin center point;

Obtain the coordinates of the two ends of the line segment connected to the pin, the overlapping end point with the pin center point is marked as A, and the other end point is marked as B;

Compare the lengths of OA and OB. If OA<OB, the wiring direction meets the design requirements;

If OA>OB, the wiring direction does not meet the design requirements.

Specifically, obtaining the coordinates of the center points of all pins of the part includes:

Get the DBIDs of all parts and store them in the array symbol;

Traverse the array symbol, and get the coordinates of the center points of all pins, and store them in the array listA.

Described calculating the coordinates of the part center point O according to the pin center point coordinates, including:

Traverse the elements in the array listA, store the coordinate X value in the array listX, and store the coordinate Y value in the array listY;

Sort the elements in the array listX to find the maximum value Xmax and the minimum value Xmin;

Sort the elements in the array listY to find the maximum value Ymax and the minimum value Ymin;

Obtain the coordinates of the center point O of the part, the coordinate X value is (Xmax+Xmin)/2, and the coordinate Y value is (Ymax+Ymin)/2.

The obtaining the coordinates of both ends of the line segment connected to the pin includes:

Obtain the cline segment connected to the pin through the function axlDBGetConnect.

For the routing segment whose routing direction does not meet the design requirements, light the routing segment.

Taking Figure 2 as an example, the center point of the part is marked as O, the end point of one end of the cline segment connected to one pin of the part and the center coordinate point of the pin is A, and the end point of the other end is B, according to O, A and B Calculate and compare the lengths of OA and OB with point coordinates, OA<OB, the pin routing direction is far away from the part, which meets the design requirements.

One end of the other connected cline segment of the part that overlaps with the pin center coordinate point is A ₁ , and the other end is B ₁ . Calculate and compare OA ₁ and OB ₁ according to the coordinates of O, A ₁ and B ₁ . The length of OA ₁ >OB ₁ , the trace direction of this pin is toward the part, which does not meet the design requirements.

As shown in FIG. 3 , an embodiment of the present invention also discloses a device for checking the wiring direction of parts pins, including:

The pin coordinate acquisition unit is used to acquire the center point coordinates of all pins of the part;

The part coordinate calculation unit is used to calculate the coordinates of the part center point O according to the coordinates of the pin center point;

The line end point judgment unit is used to judge the end point connecting the line segment and the pin center point;

The wiring direction judgment unit is used to judge whether the wiring direction meets the design requirements.

The embodiment of the present invention also discloses a device for checking the wiring direction of parts pins, including:

memory for storing computer programs;

The processor is configured to implement the steps of the above-mentioned method for checking the wiring direction of component pins when executing the computer program.

The embodiment of the present invention also discloses a storage medium, where a computer program is stored on the storage medium, and when the computer program is executed by a processor, the steps of the above-mentioned method for checking the wiring direction of a component pin are implemented.

Although the specific embodiments of the present invention have been described above with reference to the accompanying drawings, they are not intended to limit the protection scope of the present invention. For those skilled in the art, on the basis of the above description, other modifications or variations in different forms can also be made. There is no need and cannot be exhaustive of all implementations here. On the basis of the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without any creative work still fall within the protection scope of the present invention.

Claims (6)

1. a method for checking part pin routing direction, is characterized in that, comprises: Get the coordinates of the center point of all pins of the part; The center point coordinates of all pins of the part are obtained, including: Get the DBID of the part and store it in the sequence symbol; Traverse the sequence symbol and store the center point coordinates of all pins in the sequence listA; Calculate the coordinates of the center point O of the part according to the coordinates of the pin center point; Described calculating the coordinates of the part center point O according to the pin center point coordinates, including: Traverse the elements in the array listA, store the coordinate X value in the array listX, and store the coordinate Y value in the array listY; Sort the elements in the array listX to find the maximum value Xmax and the minimum value Xmin; Sort the elements in the array listY to find the maximum value Ymax and the minimum value Ymin; The coordinate X value of the part center point O is (Xmax+Xmin)/2, and the coordinate Y value is (Ymax+Ymin)/2; Obtain the coordinates of the two ends of the line segment connected to the pin, the overlapping end point with the pin center point is marked as A, and the other end point is marked as B; Compare the lengths of OA and OB. If OA<OB, the wiring direction meets the design requirements; If OA>OB, the wiring direction does not meet the design requirements. 2. The method for checking the wiring direction of a part pin according to claim 1, wherein the acquisition of the coordinates of both ends of the wiring segment connected to the pin comprises: Obtain the cline segment connected to the pin through the function axlDBGetConnect. 3 . The method for checking the wiring direction of component pins according to claim 1 , wherein, for the wiring segment whose wiring direction does not meet the design requirements, the wiring segment is lit. 4 . 4. A device for checking the wiring direction of parts pins, characterized in that it comprises: The pin coordinate acquisition unit is used to acquire the center point coordinates of all pins of the part; The center point coordinates of all pins of the part are obtained, including: Get the DBID of the part and store it in the sequence symbol; Traverse the sequence symbol and store the center point coordinates of all pins in the sequence listA; The part coordinate calculation unit is used to calculate the coordinates of the part center point O according to the coordinates of the pin center point; Described calculating the coordinates of the part center point O according to the pin center point coordinates, including: Traverse the elements in the array listA, store the coordinate X value in the array listX, and store the coordinate Y value in the array listY; Sort the elements in the array listX to find the maximum value Xmax and the minimum value Xmin; Sort the elements in the array listY to find the maximum value Ymax and the minimum value Ymin; The coordinate X value of the part center point O is (Xmax+Xmin)/2, and the coordinate Y value is (Ymax+Ymin)/2; The line end point judgment unit is used to judge the end point connecting the line segment and the pin center point; The wiring direction judgment unit is used to judge whether the wiring direction meets the design requirements. 5. A device for checking the wiring direction of parts pins, characterized in that it comprises: memory for storing computer programs; The processor is configured to implement the steps of the method for checking the wiring direction of component pins according to any one of claims 1 to 3 when executing the computer program. 6. A storage medium, characterized in that, a computer program is stored on the storage medium, and when the computer program is executed by the processor, a method for checking the wiring direction of a component pin according to any one of claims 1 to 3 is realized A step of.

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