JPH10125789A - Automatic dialogue wiring method and medium in which automatic dialogue wiring program is recorded - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten design time and to facilitate designing by reducing manual works, in such a manner that one connection information is designated as a start point of wiring, temporary wiring is performed between connection information closest to the above connection information and the connection information designated as a start point, and the temporary wiring is displayed. SOLUTION: Connection information A serving as a terminal or wiring requested to be connected and a wiring inhibition region B are arranged. In this case, when connection information A serving as a start point of wiring is designated, another connection information A closest to the designated connection information A is detected and a temporary wiring 11 for connecting the designated connection information A and the detected connection information A is displayed. When the temporary wiring 11 is a desired wiring path, it is decided as actual wiring. If the temporary wiring 11 is not desired wiring, the temporary wiring 11 is always displayed between the start point and the connection information A closest to the indicated coordinate values except for the connection information A of the start point. By moving the indicated coordinate to the connection information A serving as an end point, the connection information A and A can be connected.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic interactive wiring method for automatically designing a wiring layout of a semiconductor integrated circuit, and more particularly to a designer and a computer system such as a CA.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic interactive wiring method for interactively designing a computer while bidirectionally communicating with a computer-aided design (D), and a medium recording an automatic interactive wiring program.

[0002]

2. Description of the Related Art Conventionally, as this kind of wiring method, for example, a method shown in FIG. 6 is known. In the method shown in FIG. 6, first, a connection request of a terminal or wiring of an integrated circuit for which a circuit is designed is registered as connection information A (FIG. 6).
(A)). Note that, in FIG. 6, the hatched portion represents the wiring prohibited area B. Next, of the registered connection information A, the connection information A (indicated by an arrow in the figure) which is the starting point of the wiring path is designated by a coordinate input device such as a mouse or a tablet (FIG. 6).
(B)), by moving the coordinate input device, the designated coordinates (indicated by an arrow in FIG. 6) of the coordinate input device are moved, and the wiring 21 is formed along the designated coordinates. When the direction of the wiring changes, the coordinate value c of the designated coordinates of the changing point is input by the coordinate input device (FIG. 6C), and the coordinate value d of which the wiring direction changes is input by the coordinate input device ( 6 (d), finally, the designated coordinates of the coordinate input device are moved from the coordinate value d to the connection information A, the connection information A is designated by the coordinate input device, and the wiring 21 for connecting the connection information A, A is connected. The wiring path is displayed (FIG. 6E), and the connection information A is connected by the wiring path intended by the designer.

As a specific example of this method, for example, FIG.
As shown in FIG. 2, two transistors A each having a gate 23 formed between a diffusion layer 22 serving as a source or a drain.
In the case where one transistor B is arranged and the gate 23 of the transistor A is connected, FIG.
The wiring 21 is formed as shown in FIG.

In such a method, all coordinate values constituting the wiring 21 have to be manually input. Therefore, as the wiring becomes longer and more complicated, it takes more time to perform the wiring, and the work efficiency is extremely poor.

Therefore, there is a method of automatically wiring between connection information in order to improve work efficiency. In this method, as shown in FIG. 8, in a wiring environment similar to that of FIG. 6A (FIG. 8A), connection information A serving as a start point of wiring and connection information A serving as an end point are determined by a coordinate input device. When specified, the connection information A is connected by a straight line to form a temporary wiring 24, and the temporary wiring 24 is displayed as a temporary wiring (indicated by a broken line in the figure) (FIG. 8).
(B)).

If the temporary wiring 24 obtained in this manner is a wiring desired by the designer, the wiring processing is completed by using the temporary wiring 24 as a main wiring, but the probability of becoming a desired wiring is extremely small. Accordingly, in the same manner as shown in FIGS. 6C and 6D, a desired wiring to be the main wiring 25 (solid line in the drawing) is formed by inputting the coordinate values c and d. (FIGS. 8C, 8D and 8E). At this time, the point different from the method shown in FIG. 6 is that the temporary wiring 24 is displayed as a straight line between the coordinate value input when the coordinate value is input and the connection information A. This allows the designer to always recognize the connection information A as the end point.

As a specific example of this method, for example, FIG.
As shown in FIG. 2, two transistors A each having a gate 23 formed between a diffusion layer 22 serving as a source or a drain.
In the case where one transistor B is arranged and the gate 23 of the transistor A is connected, FIG.
The wiring 25 is formed as shown in FIG.

However, even in such a method, it is extremely rare that a desired wiring can be obtained at a time by automatic wiring, so that the number of manual input operations increases as in the method shown in FIG. Was invited.

On the other hand, as a conventional method for automatically wiring connection information, the one shown in FIG. 10 is known. In this method, in a wiring environment similar to that of FIGS. 6A and 8A (FIG. 10A), when two points of connection information A and A are designated by a coordinate input device (FIG. 10B). ), Connection information A
Are displayed, for example, three kinds of wiring paths (FIG. 10)
(C), (d), (e)), indicated wirings 26, 2
A desired wiring is selected from 7, 28, and connection information A,
A desired wiring path connecting A is formed.

As a specific example of this method, for example, FIG.
As shown in FIG. 1, a diffusion layer 22 serving as a source or a drain
Two transistors A and one transistor B having a gate 23 formed therebetween are arranged.
When the connection information A to be connected is specified by the coordinate input device (FIG. 3B), the connection is made as shown in FIGS. 3C to 3E. As described above, three types of wiring examples are displayed, a desired wiring is selected from the displayed wirings, and a desired wiring path connecting the connection information A, A is formed.

However, in such a wiring method,
It was troublesome to select some of the automatically generated wiring route candidates. If the desired wiring is not included in the automatically generated wiring, the desired wiring must be formed using the method shown in FIG. 6 or FIG.

[0012]

As described above,
In the conventional wiring method, since there are many manual operations, the work efficiency is poor, and much time is spent on the wiring layout design.

[0013] The present invention has been made in view of the above, and an object of the present invention is to reduce the number of manual operations and shorten the design time and facilitate the design. It is an object of the present invention to provide a medium recording a wiring method and an automatic interactive wiring program.

[0014]

In order to achieve the above object, an invention according to claim 1 is an automatic interactive wiring method for interactively designing a wiring layout of a semiconductor integrated circuit between a designer and a computer system. In, the connection information of a plurality of terminals or wirings that are registered in advance and have a connection request,
A first step of specifying one piece of connection information displayed on the screen of the display device as a starting point of the wiring by the coordinate input device, and detecting other connection information closest to the connection information specified in the first step A second step;
A temporary wiring is performed between the connection information detected in the step and the connection information specified in the first step, and the temporary wiring is displayed on the screen of the display device. Do it.

According to a second aspect of the present invention, in the automatic interactive wiring method according to the first aspect, when the designated coordinates of the coordinate input device changes on the screen of the display device after the third step, A fourth step of detecting other connection information closest to the designated coordinates except for the connection information specified in the first step; and a step between the connection information detected in the fourth step and the designated coordinates; A fifth step of performing provisional wiring between the connection information designated in the first step and the designated coordinates, and displaying the provisional wiring on a screen of the display device; and If the provisional wiring displayed on the screen is a desired wiring path, the provisional wiring is determined as the main wiring, and a wiring process between connection information is performed.
And if the temporary wiring displayed on the screen in the fifth step is not a desired wiring path,
And the fifth step is repeated to obtain a desired wiring path.

According to a third aspect of the present invention, in the automatic interactive wiring method according to the second aspect, when the designated coordinate value is input by the coordinate input device on the temporary wiring obtained in the fifth step, the designated coordinate is displayed. A step of determining the temporary wiring between the value and the connection information specified in the first step as a main wiring, and changing the display from the temporary wiring display to the main wiring display.

According to a fourth aspect of the present invention, there is provided an automatic interactive wiring program for interactively designing a wiring layout of a semiconductor integrated circuit between a designer and a computer system. If the connection information displayed on the screen of the display device is designated by the coordinate input device as one of the connection information of the terminal or the wiring, the other connection information closest to the specified connection information is detected. Step 1 is performed, and temporary wiring is performed between the connection information detected in the first step and the connection information specified in the first step, and the temporary wiring is temporarily displayed on a screen of the display device. A second step of displaying the wiring is performed.

According to a fifth aspect of the present invention, in the medium having recorded thereon the automatic interactive wiring program according to the fourth aspect, after the execution of the second step, the coordinates designated by the coordinate input device are displayed on a screen of the display device. When changed, a third step of detecting other connection information closest to the designated coordinates except for the connection information specified in the first step is executed,
Provisional wiring is performed between the connection information detected in the third step and the designated coordinates and between the connection information designated in the first step and the designated coordinates, and the provisional wiring is performed on the display device. And executing the fourth step of displaying the temporary wiring on the screen. If the temporary wiring displayed on the screen in the fourth step is a desired wiring path, the temporary wiring is determined as the main wiring and the connection information is determined. A fifth step of performing a wiring process between the steps is performed. If the provisional wiring displayed on the screen in the fourth step is not a desired wiring path, the third and fourth steps are repeated to execute a desired step. It is characterized in that a wiring path is obtained.

According to a sixth aspect of the present invention, in the medium on which the automatic interactive wiring program according to the fifth aspect is recorded, when the designated coordinate value is input by the coordinate input device on the temporary wiring obtained in the fourth step. , The designated coordinate value and the first
The step of determining the temporary wiring between the connection information designated in the step (i) and the main wiring and changing the display from the temporary wiring display to the main wiring display is executed.

[0020]

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 show the procedure of an automatic interactive wiring method according to an embodiment of the present invention. FIG. 3 shows an automatic interactive wiring program for realizing this automatic interactive wiring method. Is a diagram illustrating a configuration of a computer system that executes the program.

Before explaining the procedure of the automatic interactive wiring method,
The computer system shown in FIG. 3 will be described.

In FIG. 3, the computer system includes:
For example, a computer main body 1 configured by a system called CAD and executing and processing an automatic interactive wiring program for realizing an automatic interactive wiring method, and an operation necessary for the computer main body 1 and a designer to interactively design a wiring layout. A keyboard 2 provided to the computer main body 1 and a mouse (coordinate input device) 3 for inputting coordinates, and a display 4 for displaying a wiring layout on a screen are provided. The designer looks at the wiring layout displayed on the display 4 while watching the wiring layout. Necessary operations are performed by the keyboard 2 or the mass 3 and the computer main body 1 executes an automatic interactive wiring program to construct a desired wiring layout.

The automatic interactive wiring method according to this embodiment uses one of the connection information of a plurality of terminals or wirings which have been registered in advance and for which a connection request is made, and which is displayed on the screen of the display 4 shown in FIG. A first step specified by the mouse 3 as a starting point of the second step, a second step of detecting other connection information closest to the connection information specified by the first step, and a second step of detecting other connection information by the second step. A third step of performing provisional wiring between the connection information and the connection information designated in the first step, and displaying the provisional wiring on the screen of the display 4; Thereafter, when the designated coordinates of the mouse 3 change on the screen of the display 4, a fourth step of detecting other connection information closest to the designated coordinates excluding the connection information specified in the first step. Temporary wiring is performed between the connection information detected in the fourth step and the indicated coordinates and between the connection information specified in the first step and the indicated coordinates, and the temporary wiring is displayed on the screen of the display 4. Fifth to display temporary wiring
If the temporary wiring displayed on the screen of the display 4 in the fifth step is a desired wiring route, this temporary wiring is determined as a main wiring, and a wiring process between connection information is performed. If the temporary wiring displayed on the screen in the fifth step is not the desired wiring path, the fourth and fifth steps are repeated to obtain the desired wiring path.

For example, when the connection information A which is a connection request terminal or a wiring and the wiring prohibited area B are arranged as shown in FIG. 1A, first, the connection information A (the display 4 When an arrow (indicated by an arrow on the screen) is designated with the mouse 3 (FIG. 1B), other connection information A closest to the designated connection information A is detected, and the designated connection information A and the detected connection are detected. Temporary wiring 1 for connecting information A
1 is provisionally displayed (indicated by a broken line in the figure) ((b) in the figure). Here, when the temporary wiring 11 is a desired wiring route, this is determined as a main wiring, and the wiring processing for connecting the connection information A, A is completed.

On the other hand, if the provisional wiring 11 shown in FIG. 1B is not the desired wiring, the designated coordinates (indicated by arrows in the figure) displayed on the screen of the display 4 by moving the mouse 3 are displayed. Move. In synchronization with this movement, the provisional wiring 11 is always displayed as the provisional wiring between the connection information A closest to the designated coordinate value except the connection information A at the start point ((c), (d), (e) in FIG. )). In this manner, the designer moves the designated coordinates of the mouse 3 to the connection information A as the end point so that a desired wiring path is formed, and the connection information A, A
A desired wiring route for connecting the wirings is formed, and when the desired wiring route is obtained, the temporary wiring 11 is fixed to the main wiring, and the temporary wiring display (broken line display) is changed to the main wiring display (for example, solid line display) on the screen. ), And the wiring processing for connecting the connection information A, A ends.

FIG. 2 shows a specific example of this method.
As shown in FIG. 3, three transistors A each having a gate 14 formed between diffusion layers 13 serving as a source or a drain.
In the case where one transistor B is arranged and the gate 14 of the transistor A is connected, FIG.
As shown in FIG. 3E, a path of the temporary wiring 11 is formed.

In such a wiring method, by specifying connection information serving as a starting point by, for example, clicking with a mouse, a temporary wiring path between connection information is obtained by inputting one point, and a temporary wiring path is obtained. Can be constructed in a state where is always displayed, so that a designer can always form a desired wiring path while checking the wiring path, and perform wiring processing with a simpler operation than before. And the wiring time can be greatly reduced.
In addition, when the wiring route of the temporary wiring displayed on the screen is modified, the temporary wiring route is displayed in synchronization with the movement of the mouse 3, so that the desired wiring route to be the main wiring can be quickly obtained. Becomes possible.

FIGS. 4 and 5 are diagrams showing the procedure of an automatic interactive wiring method according to an embodiment of the present invention.

The automatic interactive wiring method according to this embodiment uses the automatic interactive wiring program shown in FIG.
And executed by the computer system shown in FIG. The feature of this embodiment is that, as shown in FIG. 4, the mouse 3 instructs on the temporary wiring 11 obtained in the fifth step in the same wiring procedure as in FIG. When the coordinate value is input, the provisional wiring 11 between the designated coordinate value and the connection information A specified in the first step is determined as the main wiring 12, and the provisional wiring is displayed (broken line in the figure).
To change to the actual wiring display (solid line in the figure)
(D)).

As a specific example of this method, in a case similar to FIG. 2, for example, the paths of the temporary wiring 11 and the main wiring 12 are formed as shown in FIGS. You.

In this embodiment, in addition to the effects obtained in the above embodiment, a part of a desired wiring path can be obtained before the wiring processing is completed.

A program for realizing the above-described automatic interactive wiring method can be stored in a recording medium. This recording medium is stored in a computer system such as CA
The automatic interactive wiring method described above can be realized while controlling the computer by causing the computer to read the data by executing the program D. Here, the recording medium is a memory device,
Devices that can record programs, such as magnetic disk devices and optical disk devices, are included.

[0034]

As described above, according to the present invention, when one piece of connection information is designated as the starting point of the wiring, the temporary wiring is set between the connection information closest to this connection information and the connection information set as the starting point. The temporary wiring route is displayed, or the temporary wiring route is always displayed in synchronization with the change of the temporary wiring route, so that manual work is reduced, and the design time in wiring layout is shortened and the design is simplified. Can be achieved.

[Brief description of the drawings]

FIG. 1 is a diagram showing a procedure of an automatic interactive wiring method according to an embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a specific wiring layout in which wiring is performed according to the procedure illustrated in FIG. 1;

FIG. 3 is a diagram showing a configuration of a computer system that executes a program for realizing the procedure shown in FIG.

FIG. 4 is a diagram showing a procedure of an automatic interactive wiring method according to an embodiment of the invention described in claim 3;

FIG. 5 is a diagram showing an example of a specific wiring layout in which wiring has been performed in the procedure shown in FIG. 4;

FIG. 6 is a diagram showing a procedure of a conventional automatic interactive wiring method.

FIG. 7 is a diagram illustrating an example of a specific wiring layout in which wiring is performed according to the procedure illustrated in FIG. 6;

FIG. 8 is a diagram showing a procedure of another conventional automatic interactive wiring method.

FIG. 9 is a diagram illustrating an example of a specific wiring layout in which wiring is performed in the procedure illustrated in FIG. 8;

FIG. 10 is a diagram showing a procedure of another conventional automatic interactive wiring method.

11 is a diagram showing an example of a specific wiring layout in which wiring is performed in the procedure shown in FIG. 10;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Computer main body 2 Keyboard 3 Mouse 4 Display 11,24 Temporary wiring 12,21,25,26,27,28 Main wiring 13,22 Diffusion layer 14,23 Gate A Connection information B Wiring prohibited area

Claims (6)

[Claims] 1. An automatic interactive wiring method for interactively designing a wiring layout of a semiconductor integrated circuit between a designer and a computer system, comprising the steps of: A first step of designating one piece of connection information displayed on a screen of a display device as a starting point of wiring by a coordinate input device, and detecting other connection information closest to the connection information specified in the first step Performing a temporary wiring between the connection information detected in the second step and the connection information specified in the first step;
A third step of temporarily displaying the temporary wiring on the screen of the display device. 2. When the designated coordinates of the coordinate input device change on a screen of the display device after the third step,
A fourth step of detecting other connection information closest to the designated coordinates except for the connection information specified in the first step; and a step of determining the connection information detected in the fourth step and the designated coordinates. A fifth step of performing temporary wiring between the connection information designated in the first step and the designated coordinates, and displaying the temporary wiring on a screen of the display device; In a case where the provisional wiring displayed on the screen in the step is a desired wiring path, the method further includes a sixth step of determining the provisional wiring as a main wiring and performing wiring processing between connection information, 2. The automatic interactive wiring method according to claim 1, wherein if the temporary wiring displayed on the screen is not a desired wiring path, the fourth and fifth steps are repeated to obtain a desired wiring path. 3. When a designated coordinate value is input by the coordinate input device on the temporary wiring obtained in the fifth step, a difference between the designated coordinate value and the connection information designated in the first step is obtained. 3. The automatic interactive wiring method according to claim 2, further comprising the step of fixing the temporary wiring to the main wiring and changing the temporary wiring display to the main wiring display. 4. An automatic interactive wiring program for interactively designing a wiring layout of a semiconductor integrated circuit between a designer and a computer system, comprising: connecting a plurality of terminals or wirings which are registered in advance and which require connection. When one piece of connection information displayed on the screen of the display device is designated by the coordinate input device as the starting point of the wiring, the first step of detecting other connection information closest to the designated connection information is executed. Performing temporary wiring between the connection information detected in the first step and the connection information specified in the first step;
A medium in which an automatic interactive wiring program is recorded, wherein a second step of temporarily displaying the temporary wiring on the screen of the display device is executed. 5. After the execution of the second step, when the designated coordinates of the coordinate input device changes on the screen of the display device, the designated coordinates are changed except for the connection information designated in the first step. Causing a third step of detecting other closest connection information to be executed, between the connection information detected in the third step and the designated coordinates, and between the connection information designated in the first step and the designated A fourth step of performing temporary wiring between the coordinates and displaying the temporary wiring on the screen of the display device is performed, and the temporary wiring displayed on the screen in the fourth step is a desired wiring path. In the case of, the fifth step of fixing the temporary wiring to the main wiring and performing wiring processing between connection information is executed, and the temporary wiring displayed on the screen in the fourth step is not a desired wiring path. In this case, the third and 5. The medium according to claim 4, wherein a desired wiring path is obtained by repeating steps (a) and (d). 6. When a designated coordinate value is input by the coordinate input device on the provisional wiring obtained in the fourth step, a difference between the designated coordinate value and the connection information designated in the first step is obtained. 6. The medium according to claim 5, wherein a step of fixing the temporary wiring to the main wiring and changing the temporary wiring display to the main wiring display is executed.