JP2002215702A - System for generating data corresponding to connection pin number - Google Patents

Abstract

PROBLEM TO BE SOLVED: To generate data corresponding to connection pin numbers of a circuit part used for converting circuit diagram data generated by a circuit layout system comprising a CAD, etc., into data to be used in a circuit layout system other than that. SOLUTION: This system for generating data corresponding to connection pin numbers is for unifying data of connection pin numbers and origins of coordinates in circuit parts different between the systems by converting the same parts. A circuit part library extracting means 211 for processing subject designates the circuit parts as subjects for conversion processes from circuit part libraries 184 and 186 of the two systems. A connection pin information extracting means 212 extracts coordinates of pin origins of connection pins for each circuit part. A coordinate reference point setting means 213 sets reference for correction of coordinates, and a coordinate position correcting means 214 corrects the positions of coordinates. A connection pin number comparing means 216 compares the number of the corresponding connection pins, and a connection pin number-based data outputting means 217 generates connection pin number-based data based on these.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to generation of connection pin number correspondence data used in a circuit layout system in which circuit components are connected and arranged, such as a printed circuit board logical circuit diagram creation system and a printed circuit board layout and wiring system. In connection with the system, in particular, it generates connection pin number correspondence data used for data conversion between the same circuit components when using circuit diagram data representing a circuit diagram created by one circuit placement system in another circuit placement system. And a connection pin number correspondence data generation system.

[0002]

2. Description of the Related Art When designing a circuit of a printed circuit board using CAD (computer aided design), an IC is required.
(Integrated circuit) or LSI (large sc)
It is necessary to specify which pin of components such as an ale integrated circuit) is connected to which signal line, power supply line or other line or terminal. Even if the circuit components have the same shape, the meaning of each pin is different for each circuit component.

FIG. 7 shows a part of a circuit as an example. Paying attention to specific circuit components 101 of this circuit, six pin numbers from “01” to “06” are assigned to the connection pins. The circuit component 10
The information such as the pin numbered as 1 is a pin connected to the power supply line or a ground pin to be grounded is not shown, which represents connection information of each circuit component constituting the entire circuit shown in FIG. It is stored in the circuit component library. Therefore, by specifying the circuit component and acquiring the pin information from the circuit component library, other circuit components 10
A connection point with 2, 103 or the like can be determined. Further, for example, in a case where a circuit change is performed so that another circuit component having the same function as the circuit component 101 shown in FIG. 7 is used instead, the connection information about each pin of the new circuit component is Obtainable.

FIG. 8 shows an example of a connection state of each pin when a circuit component different from that of FIG. 7 is used. The circuit component 111 shown in this figure is the circuit component 1 shown in FIG.
Suppose that it has exactly the same function as the 01. Also in this case, if the arrangement of the internal circuits is different from each other, the arrangement of the corresponding input / output pins is different. As a result, for example, a change occurs in which the circuit component 102 connected to the first pin “01” of the circuit component 101 is connected to the third pin “03”.

[0005] Therefore, a component connection indicating which line or circuit component each connection pin of each circuit component or each circuit component constituting a circuit arranged on a specific substrate should be connected to. Conventionally, information is stored as circuit diagram data for each printed circuit board or for each specific circuit.
However, such circuit diagram data used in one circuit arrangement system cannot always be used as it is in another circuit arrangement system different from this. This is because the rules for assigning pin numbers for individual circuit components are not always the same among circuit placement systems.
This is because there is a possibility that the circuit component library itself storing various information on the circuit components appearing in these circuit diagram data is different between the two systems.

FIG. 9 shows an example in which the pin numbers of the connection pins of the same circuit component are assigned differently. 4A to 4C show the pin numbers of the connection pins of the same circuit component 121, respectively. In FIG. 11B, the pin numbers from the first pin “01” to the fourth pin “04” are the same in FIG. However, the pin numbers of the fifth pin “05” to the eighth pin “08” do not match. In addition, the circuit component 121 shown in FIG. 9C takes the origin while rotating the circuit component 121 shown in FIG. Therefore, all the pin numbers do not match between them.

As described above, as a result of the circuit component libraries used in the respective circuit layout systems assigning pin numbers from a unique viewpoint or rules, a printed circuit board logical circuit diagram creation system and a printed circuit board layout and wiring are obtained. If circuit arrangement systems such as systems are different, different pin numbers may be assigned to the same circuit component. Therefore, for example, when one circuit design system is shifted to another circuit design system, there arises a problem that the circuit diagram data used in the conventionally used circuit design system may not be used as it is in the new circuit design system.

Conventionally, in order to use circuit diagram data created by the circuit placement system used up to now in a circuit placement system such as a new circuit design system, connection pin number corresponding data is created and the connection pin Information had to be changed. To this end, a study has been conducted on the correspondence between the connection pin numbers.

However, such a survey involves manually examining the correspondence of the connection pins, and has also manually created the correspondence data. For this reason, there is a possibility that an error may occur in the created connection pin number correspondence data. As a result, there is a problem that the reliability of the connection pin number correspondence data is low. In addition, since a person from the investigation of the correspondence of the connection pins to the creation of the correspondence data is performed manually, there is a problem that it takes time and labor to create the connection pin number correspondence data for library conversion.

[0010] Japanese Patent No. 2744451 discloses a method of checking and checking circuits when performing circuit conversion accompanying a change in the standard. In this proposal,
From the old circuit diagram and the new circuit diagram, data of circuit components constituting each circuit diagram and connection pin data between the components are extracted as mounting data of these circuit diagrams. Then, using the data of these circuit components and the connection pin data between the components, the production data of the virtual printed circuit board is created so that the arrangement of each circuit component is the same. A check at the time of conversion of the circuit diagram is performed by collating the manufacturing data of the printed circuit board with the old circuit diagram and the new circuit diagram.

FIG. 10 shows the relationship between the old circuit diagram and the new circuit diagram in this proposal. The purpose of this proposal is to create a new circuit diagram 132 in order to match the old circuit diagram 131 from the standard A to the new standard B.
In the example shown in this figure, the old circuit diagram 131 shows three circuit components 133 to 135. In the new circuit diagram 132, the circuit component 133 existing in the old circuit diagram 131 is replaced with a circuit component 136. Although the circuit component 133 of the old circuit diagram 131 uses only one pin of the pin number “01”, the circuit component 136 changed in the new circuit diagram 132
Uses two pins with pin numbers "02" and "03". Therefore, in this proposal, virtual printed circuit board manufacturing data is created for both the old circuit diagram 131 and the new circuit diagram 132. Then, the two are compared and checked so that the difference between them can be understood.

In Japanese Patent Application Laid-Open No. Hei 4-211184,
When there are a plurality of identical circuit components such as AND gates on a circuit diagram, a corresponding circuit component is extracted from a library storing the circuit components, and a pin number of each extracted circuit component is designated on the circuit diagram. A technique for automatically allocating these circuit components is disclosed.

[0013]

In the proposal shown in FIG. 10, virtual printed circuit board manufacturing data is created for both the old circuit diagram 131 and the new circuit diagram 132, and these are compared. ing. Therefore,
Although mutual checking can be performed when different circuit components are arranged, the circuit diagram data of an existing system cannot be used for a new system.

In the technique disclosed in Japanese Patent Application Laid-Open No. 4-2184, the same component as a specific component on a circuit diagram is extracted from a component library in one fixed circuit arrangement system, and their pin numbers are assigned. What you want to do.
Therefore, there is a possibility that the contents of the component library may be different between systems having different circuit arrangement systems as described above, and the technique disclosed in Japanese Patent Application Laid-Open No. 4-2184 cannot be used.

Therefore, an object of the present invention is to generate connection pin number corresponding data of a circuit component used for data conversion in order to use circuit diagram data created in one circuit arrangement system in another circuit arrangement system. An object of the present invention is to provide a connection pin number correspondence data generation system.

[0016]

According to the first aspect of the present invention, a specific first circuit component is selected from a circuit component library representing various types of information on circuit components managed by the first system. First circuit component designating means for designating
(B) Second circuit component designating means for designating a specific second circuit component from a circuit component library representing various information of circuit components managed by a second system different from the first system And (c) a first connection pin in which at least pin number allocation and position information of a specific connection pin are described for each connection pin arranged on the circuit component specified by the first circuit component specification means. First connection pin information extraction means for extracting information; and (d) assignment of pin numbers for connection pins arranged in the circuit component designated by the second circuit component designation means and specific connection pins. Second connection pin information extraction means for extracting second connection pin information describing at least the position information of (e), and (e) the extracted first connection pin information and second connection pin information.
A coordinate position optimizing means for collating the position information of a specific connection pin in the connection pin information of (1) and optimizing the coordinate positions of these circuit components, and (f) a coordinate position optimized by the coordinate position optimizing means. Connection pin number comparing means for associating the connection pins of the first circuit component and the second circuit component one by one based on the above, and comparing the pin numbers of these connection pins; The connection pin number correspondence data generation system is provided with connection pin number correspondence data output means for outputting the comparison result of the number comparison means as connection pin number correspondence data.

That is, according to the first aspect of the present invention, a specific first circuit component is designated by a first circuit component designation from a component library representing various information of a plurality of circuit components managed by the first system. A specific second circuit component is designated by a second circuit component designating means from a component library similarly representing various types of information of a plurality of circuit components managed by the second system. The first connection pin information extracting means assigns a pin number for each connection pin prepared in advance with respect to the circuit component designated by the first circuit component designation means and writes at least the position information of the specific connection pin. 1 connection pin information is extracted. The second connection pin information extracting means similarly assigns a pin number for each connection pin prepared in advance for the circuit component designated by the second circuit component designating means and at least records position information of a specific connection pin. The extracted second connection pin information is extracted. Therefore, the coordinate position optimizing unit compares the position information of the specific connection pin in the extracted first connection pin information and the extracted second connection pin information so that they match, thereby making these circuit components coincide. Optimize the coordinate position of. In this way, the data of the connection pins of the two circuit components are made to correspond to each other, and the connection pin number comparison means associates the connection pins of the first circuit component and the second circuit component one by one, The pin numbers of these connection pins will be compared. The connection pin number correspondence data output means outputs the comparison result of the connection pin number comparison means as connection pin number correspondence data. Therefore, by associating the connection pin numbers of the circuit components provided in the library of one system with the connection pin numbers of the circuit components provided in the library of the other system, the library conversion connection pin number correspondence data can be created by a machine. Can be processed.

According to the second aspect of the present invention, (a) a first circuit component designating a specific first circuit component from a circuit component library representing various information of the circuit component managed by the first system. A circuit component designating means for designating a specific second circuit component from a circuit component library representing various information of circuit components managed by a second system different from the first system; And (c) assignment of pin numbers for each connection pin arranged on the circuit component specified by the first circuit component specification means, coordinates of the origin of each connection pin, and a specific First connection pin information extracting means for extracting first connection pin information at least indicating the position of the connection pin;
(D) At least the assignment of pin numbers, the coordinates of the origin of each connection pin, and the position of a specific connection pin are described for the circuit component designated by the second circuit component designation means. A second connection pin information extracting means for extracting second connection pin information;
Coordinate reference point setting for setting the origin of the coordinates of one system to the coordinates of the origin of the other system using the coordinates of the origin of each connection pin in the extracted first connection pin information and the second connection pin information Means for comparing the positions of specific connection pins in the first connection pin information and the second connection pin information after the reference point is set by the coordinate reference point setting means; Coordinate position optimizing means for optimizing the coordinate position of the component; and (g) a first position based on the coordinate position optimized by the coordinate position optimizing means.
Connection pin of each of the circuit component of the
A connection pin number comparison means for associating with each other and comparing the pin numbers of these connection pins; and (h) connection pin number correspondence data output means for outputting the comparison result of the connection pin number comparison means as connection pin number correspondence data. Are provided in the connection pin number correspondence data generation system.

That is, according to the second aspect of the present invention, a specific first circuit component is designated by a first circuit component designation from a circuit library representing various information of a plurality of circuit components managed by the first system. A specific second circuit component is designated by a second circuit component designating means from a circuit library similarly indicating various kinds of information of a plurality of circuit components managed by the second system. The first connection pin information extracting means is configured to assign at least a pin number for each connection pin prepared in advance for the circuit component designated by the first circuit component designation means and to write at least a position information of a specific connection pin. 1 connection pin information is extracted. The second connection pin information extracting means similarly assigns a pin number for each connection pin prepared in advance for the circuit component designated by the second circuit component designating means and at least describes position information of the specific connection pin. The extracted second connection pin information is extracted. Therefore, the coordinate reference point setting means firstly uses the coordinates of the origin of each connection pin in the extracted first connection pin information and the second connection pin information to determine the origin of the coordinates of one system as the origin of the other system. The first connection pin information and the second connection pin information after the reference position has been set by the coordinate position
The position information of a specific connection pin in the connection pin information of (1) is collated to optimize the coordinate positions of these circuit components. In this way, the data of the connection pins of the two circuit components are brought into a state where they can be associated with each other, and the connection pin number comparison means operates as the first pin.
Connection pin of each of the circuit component of the
Each pin is associated with each other and the pin numbers of these connection pins are compared. The connection pin number correspondence data output means outputs the comparison result of the connection pin number comparison means as connection pin number correspondence data. Therefore, by associating the connection pin numbers of the circuit components provided in the library of one system with the connection pin numbers of the circuit components provided in the library of the other system, the library conversion connection pin number correspondence data can be created by a machine. Can be processed.

According to a third aspect of the present invention, in the connection pin number correspondence data generation system according to the first or second aspect, the coordinate position optimizing means rotates the circuit component to set the coordinate position to the first circuit component. It is characterized in that the position of the coordinates is optimized by matching between the second circuit components.

In other words, according to the third aspect of the present invention, when the assignment of the pin numbers is different, the circuit parts of one system are rotated relative to the other so that the respective pin numbers match. It is shown that.

According to a fourth aspect of the present invention, in the connection pin number correspondence data generating system according to the first or second aspect, the first and second systems are respectively different logic circuit diagram creating systems for printed circuit boards. It is characterized by:

That is, the invention described in claim 4 shows that an example of a system to which the present invention is applied is a system for creating a logic circuit diagram for a printed circuit board.

According to a fifth aspect of the present invention, in the connection pin number corresponding data generating system according to the second aspect, the connection pin number corresponding data output means outputs the connection pin number corresponding to the connection pin whose comparison result did not match. It is characterized by outputting connection pin number correspondence data.

In other words, according to the fifth aspect of the present invention, it is assumed that a correspondence table is unnecessary for connection pins for which all comparison results match, and connection pin number correspondence data is output for connection pins that do not match. I have.

[0026]

BEST MODE FOR CARRYING OUT THE INVENTION

[0027]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to embodiments.

FIG. 1 shows the relationship between a connection pin number correspondence data generation system and its peripheral system according to an embodiment of the present invention. The connection pin number correspondence data generation system according to the present embodiment is a CAD (computer a) as a circuit arrangement system for arranging circuit parts for design and the like.
idd design) system (hereinafter referred to as a first CAD system) 181 to C as another circuit placement system.
AD system (hereinafter, referred to as a second CAD system)
182 is used when the operation of the system is switched. Data representing a circuit diagram created by the first CAD system 181 (hereinafter referred to as circuit diagram data 183).
Are generated in the second CAD system 182 so as to generate connection pin number corresponding data.

That is, in the first CAD system 181, circuit diagram data 183 is created using the first CAD system circuit component library 184 representing connection information of each circuit component, and the second CAD system 181 is similarly created. System 182
In this embodiment, the circuit diagram data 187 is created by using the second CAD system circuit component library 186 representing the connection information of each circuit component. As described above, since the CAD systems are different from each other, the first CAD system circuit component library 184 and the second C
The circuit component library 186 for an AD system usually has the same circuit component but different contents.

For this reason, in this embodiment, the circuit diagram data 183 created by the first CAD system 181 cannot be used as it is by the second CAD system 182. Therefore, a connection pin information conversion system 191 exists so that the circuit diagram data 183 created by the first CAD system 181 can be used as an asset by the second CAD system 182. This connection pin information conversion system 191 is also called an automatic circuit diagram conversion system, and converts the circuit diagram data 183 created by the first CAD system 181 into the second CAD system 182.
This is a system for converting into circuit diagram data 192 that can be read by.

As described above, the connection pin information conversion system 19
1 converts the circuit diagram data 183 created by the first CAD system 181 into circuit diagram data 192 that can be used by the second CAD system 182. For this purpose, connection pin number correspondence data 194 is required. The connection pin number correspondence data generation system 196 of this embodiment is a system for this purpose. That is, the connection pin number correspondence data generation system 196 is the first CAD system circuit component library 184 prepared for the first CAD system.
And a second C prepared for the second CAD system
The connection pin number correspondence data 194 is generated using the circuit component library 186 for the AD system.

FIG. 2 shows the configuration of the connection pin number correspondence data generation system of this embodiment. The connection pin number correspondence data generation system 196 is basically the same as a configuration in which peripheral devices are connected to a normal personal computer. That is, the connection pin number correspondence data generation system 196 has a CPU (Central Processing Unit) 201 mounted thereon, and through a bus 202 such as a data bus, a display unit 203 such as a CRT, an input unit 204 such as a keyboard, and prints as necessary. Unit 205. Input unit 2
Reference numeral 04 denotes a circuit device for inputting a generation condition in a process of generating connection pin number corresponding data.
3 and a print unit 205 are used to display and print data necessary for performing input / output processing.

A storage unit 206 such as a hard disk is connected to the bus 202, and various processes such as conversion of connection pin information are executed by a control program stored therein. The storage unit 206 also has a storage area for storing the generated library conversion connection pin number corresponding data.

A circuit component connection pin number processing unit 208 is also connected to the bus 202. However, in this figure, the circuit component connection pin number processing unit 208 is represented as a functional processing unit realized by executing the above-described control program. The processing target circuit component library extraction means 211 in the circuit component connection pin number processing unit 208 outputs the C
The circuit component libraries 224 and 225 for the AD system are extracted. Connection pin information extraction means 21
2 extracts coordinate information of component connection pins from the extracted circuit component libraries 224 and 225.
The coordinate reference point setting means 213 is a means for setting a coordinate reference point for the circuit component. This is to adjust the direction of the circuit component, and is performed automatically or manually.

The coordinate position optimizing means 214 is a means for absorbing relative errors in connection pin coordinates of circuit components automatically or manually. Coordinate position comparing means 21
Reference numeral 5 denotes a means for obtaining the coordinate position of the origin of the corresponding connection pin from the information of the connection pins of two systems. The connection pin number comparison means 216 is means for comparing the numbers of two connection pins. The connection pin number correspondence data output means 217 is means for generating connection pin number correspondence data.

Further, a library unit 221 is connected to the bus 202 directly or via a communication line (not shown). The library unit 221 includes a circuit component library 186 as component connection information of a CAD (computer aided design) system (hereinafter, referred to as a second CAD system) to be newly used, and a CAD system which has been used up to now. (Hereinafter, this is referred to as a first CAD system.) A circuit component library 184 as component connection information, and processing target circuit component libraries 224 and 225 as libraries from which data on circuit components to be processed are extracted are provided. ing. All or a part of these library units 221 can be allocated to a specific storage area in the storage unit 206. The first processing target circuit component library 224 is a library for the first CAD system, and the second processing target circuit component library 225 is a library for the second CAD system. These processing target circuit component libraries 224, 2
Reference numeral 25 is created prior to the pin information conversion process, and is conveniently allocated to a predetermined storage area of the storage unit 206 in the connection pin number correspondence data generation system 196.

FIG. 3 shows a general configuration of a circuit component library stored in the library section. The circuit component library of the present embodiment (the first CAD shown in FIG. 2)
The circuit component library 184 of the system, the circuit component library 186 of the second CAD system, the first circuit component library 224 to be processed, and the second circuit component library 225) include symbols of circuit components in the logic circuit diagram. Logic circuit symbol 23 representing the shape of
1, logical information 232 such as power supply or ground (GND) information, and physical information 233 describing physical shapes of circuit components, physical shapes of connection pins, position information, and the like.

FIG. 4 shows an outline of the processing up to the extraction of the pin origin coordinates in the connection pin number correspondence data generation system having the above configuration. The processing target circuit component library extracting means 211 in the connection pin number correspondence data generation system 196 shown in FIG. 2 is configured such that an operator as an operator performs a conversion process from the circuit component library 184 of the first CAD system through the input unit 204. When the specified circuit components are designated, data on these components is extracted (step S301). And the first CAD
A circuit component library 224 to be processed by the system is created (step S302). The circuit component library 224 to be processed in the first CAD system is created in, for example, the storage unit 206 shown in FIG. 2 as described above.

Next, the connection pin information extracting means 2 shown in FIG.
12 extracts the pin origin coordinates and the like of the connection pins for each circuit component from the physical information in the processing target circuit component library 224 of the first CAD system (step S3).
03). Here, the pin origin coordinates are coordinates that are the origins when processing the connection pins such as soldering. For this reason, a pin origin coordinate exists for each connection pin. In the process of step S303, the power and ground (GN) are set together with the pin origin coordinates.
D) Information is also extracted.

FIG. 5 shows the state of processing of two circuit components having different libraries. FIG. 13A shows a circuit component 331 having a library code name “ABC” of the library of the first CAD system 181 (FIG. 1).
FIG. 14B shows the circuit component 3 having the library code name “DEF” of the library of the second CAD system 182.
32 is shown. Although these have different library code names, they are selected as the same circuit component. Two circuit components 331, 332 due to different libraries
Is different. When the circuit component library 184 of the first CAD system is used as the circuit component library 186 of the second CAD system, the operator individually specifies which circuit component is the same component.

In each of the circuit component 331 and the circuit component 332, seven connection pins 333 are arranged above and below the package body. Fourteen numbers from “01” to “14” written near these connection pins 333 indicate pin numbers. The difference in the way of assigning pin numbers between the circuit component 331 and the circuit component 332 is because the libraries are different. The "+" mark in each connection pin 333 indicates the origin 334, 335 of the connection pin. The origins 334, 335 of the connection pins are X, Y
Although shown as the coordinate values of the directions, in the circuit components 331 and 332 shown in FIG. 5, the connection pins 333 are arranged with the Y direction being the longitudinal direction of the pins in these figures. Therefore,
Only the method of obtaining the origin for each library differs in the Y-axis direction. In the X-axis direction, the width of the connection pins 333 is small, and the pin interval between the connection pins 333 is constant. For this reason, in the present embodiment, the origin of the connection pin 333 in the X-axis direction does not differ between the circuit components 331 and 332.

Returning to FIG. 4, the description will be continued. When the connection pin information extracting unit 212 extracts the pin origin coordinates 334 for the circuit components of the first CAD system in step S303, the processing target circuit component library extracting unit 211 allows the operator to input the circuit of the second CAD system using the input unit 204. When circuit components to be converted are designated from the component library 186, data on these components is extracted (step S304). And the second CA
Second processing target circuit component library 225 of D system
Is created (step S305). The second circuit component library 225 to be processed of the second CAD system is also:
As described above, for example, it is created in the storage unit 206 shown in FIG.

Next, the connection pin information extracting means 212
From the physical information in the second processing target circuit component library 225 of the CAD system, the pin origin coordinates 335 and the power supply and ground (GND) of the connection pin for each component are obtained.
Information is extracted (step S306).

FIG. 6 shows the flow of the processing operation of the connection pin number corresponding data generation system after step S306 in FIG. First CAD system and second CAD system
Origin coordinates 334, 33 for the CAD system
5 is completed, the coordinate reference point setting means 213 shown in FIG. 2 extracts the power and ground (GND) information shown as the logical information 232 in FIG. 3 from the first and second CAD systems, and The reference point is calculated so that the ground and the reference point have the same relative position. Alternatively, a reference point for determining the orientation of the circuit component is set according to a manual instruction of the operator (step S30).
7).

The processing for setting the reference point will be described again with reference to FIG. In the circuit component 331 of FIG. 9A, the connection pin 333 indicated by the symbol “○” is the power supply pin 351 and the connection pin 333 indicated by the symbol “記号” is the ground pin 352. In step S303 of FIG. 4, these pieces of information together with the pin origin coordinates 334 are extracted as connection pin information. FIG. 5C shows the first CAD.
9 illustrates connection pin information for a circuit component 331 of the system.

Similarly, in the circuit component 332 of FIG. 5B, the connection pin 333 indicated by the symbol “○” is the power supply pin 351, and the connection pin 333 indicated by the symbol “グ ラ ン ド” is the ground pin 352. I do. In step S306 in FIG. 4, these pieces of information together with the pin origin coordinates 335 are extracted as connection pin information. FIG. 2D shows the second CAD.
9 illustrates connection pin information for a circuit component 332 of the system.

As shown in FIGS. 5 (c) and 5 (d), the pin origin coordinates 334 and 335 arranged in a row in the horizontal direction on the lower side in these figures are in the Y-axis direction (vertical direction in the figure). First, the coordinate position is set in the first stage so as to have the same value (position in the vertical direction). The interval between the pin origin coordinates 334 of the upper and lower connection pins 333 and 333 in the diagram of the circuit component 331 shown in FIG. 12A and the upper and lower portions in the diagram of the circuit component 332 shown in FIG. Side connection pins 333, 333
In this example, the interval between the pin origin coordinates 335 is different due to the difference in the library. As a result, in FIGS. 5C and 5D, the pin origin coordinates 334 and 335, which are arranged in a row in the upper side in these figures, respectively, are Y
It will show different values in the axial direction. The difference 361 is the error of the origin in both CAD systems.

In order to associate the circuit component 331 of the first CAD system with the circuit component 332 of the second CAD system in connection pin units, it is necessary to unify the origin. Then, the pin origin coordinate 335 on the second CAD system side is moved in the minus (down) direction of the Y axis so as to eliminate the difference 361, and is made to coincide with the pin origin coordinate 334 (FIG. 6, step S308).

A ground pin 352 exists at a position shown in FIG. 5D corresponding to the power supply pin 351 shown in FIG. 5C, and is opposite to a position corresponding to the ground pin 352 (FIG. 5C). There is a power supply pin 351 ((d) in the figure). As described above, the fact that different power pins or components are present at corresponding positions even though the same circuit components are recognized by the operator means that the circuit components 33
It is conceivable that the directions or rotational positions of 1, 332 are different. In the case of this example, when the circuit component 331 on the first CAD system side is rotated by 180 degrees, the positions of the corresponding components match. Therefore, such coordinate conversion is performed on the connection pin information of the first CAD system. It is needless to say that it is not necessary to perform coordinate conversion depending on the CAD system. (Step S308 in FIG. 6)

When the above processing is completed, the coordinate position comparing means 215 shown in FIG. 2 compares the connection pin numbers at the corresponding coordinate positions (step S309 in FIG. 6). This is shown in FIG.
This will be described with reference to (e) and (f). In these figures, the position of each connection pin 333 is
The positions of the power supply pin 351 indicated by the symbol “○” and the positions of the ground pins 352 indicated by the symbol “△” completely match. In this state, in step S309, the pin numbers of the two connection pins corresponding to each other are compared. For example, the pin number “1” of the circuit component 331 of the first CAD system
"4" corresponds to the pin number "08" of the circuit component 332 of the second CAD system.

If the compared pin numbers do not match as in this example (step S310: Y in FIG. 6), the connection pin number correspondence data output means 217 outputs a pair of connection pin number data indicating these relationships. The data is output to a work memory area (not shown) (step S311). Then, in a state where all the pin number comparison processes are not completed (step S
312: N), and return to step S309 again to compare the next pair of pin numbers. If the pin numbers match at step S310 (N), step S312
Proceed to.

When all the pin number comparison processes have been completed (step S312: Y), the connection pin number corresponding data output means 217 outputs the connection pin number data temporarily stored in the work memory area. Thus, a library conversion connection pin number correspondence data table in which the circuit components 331 and 332 are associated with each other is generated (step S313). By performing conversion using the library conversion connection pin number correspondence data table, the circuit diagram data created so far can be used in another or new CAD system. Therefore, assets accumulated in the past can be used in a new system.
Moreover, in this embodiment, the operation of converting the connection pin information is automatically performed on the device side only by specifically specifying the circuit component for which the conversion of the connection pin information is to be performed. Therefore, it is possible to save labor costs and speed up the processing, and it is possible to avoid the occurrence of human error.

In the embodiment described above, a semiconductor product in which connection pins are arranged on two sides located on opposite sides of the package body has been described.
The present invention can be applied to a circuit component in which connection pins are arranged on each of the two sides. In this case, the rotation of one circuit component for optimizing the coordinate position described in step S308 is not limited to 180 degrees, but may be 90 degrees or 270 degrees. Further, it is needless to say that the circuit component is not limited to such a rectangular shape or a rectangular shape. In this case, it is natural that the angle for rotation may have a different value.

In the embodiment, the origin is corrected in the Y-axis direction of the connection pin. However, the origin can be corrected in another axis direction depending on the shape of the connection pin. Further, in the embodiment, the coordinate position was optimized using the power supply connection pin and the ground connection pin. However, only the power supply connection pin or only the ground connection pin, and further, other characteristics are required. It is also possible to optimize the coordinate position on the basis of the connection pins provided. Further, in the embodiment, the case where the present invention is applied to the CAD system is shown. However, it goes without saying that the present invention can be applied to other circuit arrangement systems having different pin number assignments.

[0055]

As described above, claims 1 to 5 are provided.
According to the described invention, the circuit components separately managed by the two different systems are extracted, the spatial arrangement of these data is corrected, the pin numbers of the corresponding connection pins are compared, and Since the results are output, the pin number correspondences can be quickly and accurately determined between the systems assigned from different viewpoints of the pin numbers, and the connection pin number correspondence data for library conversion can be created. Figure data can be used effectively. Further, it is possible to significantly reduce data errors caused by manual operation.

According to the second aspect of the present invention, the origin of the coordinates of one system is used by using the coordinates of the origin of each connection pin in the extracted first connection pin information and the second connection pin information. Reference point setting means for setting the reference point to the coordinates of the origin of the other system; and specifying the first connection pin information and the second connection pin information after the reference point is set by the coordinate reference point setting means. A coordinate position optimizing means for optimizing the coordinate positions of these circuit components by collating the positional information of the connection pins of the above-mentioned components is provided. However, the reliability of the library conversion connection pin number correspondence data can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a relationship between a connection pin number correspondence data generation system and a peripheral system according to an embodiment of the present invention.

FIG. 2 is a block diagram illustrating a configuration of a connection pin number corresponding data generation system in the present embodiment.

FIG. 3 is an explanatory diagram showing a general configuration of a circuit component library stored in a library unit in the embodiment.

FIG. 4 is a flowchart showing an outline of processing up to extraction of pin origin coordinates of a connection pin number correspondence data generation system in the present embodiment.

FIG. 5 is an explanatory diagram showing a state of processing of two circuit components having different libraries in the embodiment.

FIG. 6 is a flowchart showing a flow of a processing operation of the connection pin number corresponding data generation system after step S306 in FIG. 4;

FIG. 7 is a block diagram illustrating an example of a connection state of a circuit.

FIG. 8 is a block diagram showing an example of a connection state of each pin when a circuit component different from that of FIG. 7 is used.

FIG. 9 is a plan view showing an example in which connection pin numbers of connection pins of the same circuit component are assigned differently.

FIG. 10 is an explanatory diagram showing a relationship between an old circuit diagram and a new circuit diagram in a conventional proposal.

[Explanation of symbols]

 184 Circuit component library for first CAD system 186 Circuit component library for second CAD system 201 CPU (central processing unit) 204 Input unit 206 Storage unit 208 Circuit component connection pin number processing unit 211 Circuit component library extraction unit 212 to be processed Connection pin information extraction means 213 Coordinate reference point setting means 214 Coordinate position optimization means 215 Coordinate position comparison means 216 Connection pin number comparison means 217 Connection pin number correspondence data output means 221 Library unit 224, 225 Circuit library for processing target 231 Logic circuit Diagram symbol 232 Logical information 233 Physical information 331 Circuit component of library of first CAD system 332 Circuit component of library of second CAD system 333 Connection pin 334, 335 Origin of connection pin 351 Power supply pin 352 Ground pin 361 Difference

Claims (5)

[Claims] A first circuit component designating means for designating a specific first circuit component from a circuit component library representing various types of information on circuit components managed by a first system; A second circuit component designating means for designating a specific second circuit component from a circuit component library representing various information of circuit components managed by a second system different from the second system; A first connection for assigning pin numbers for each connection pin arranged on the circuit component designated by the circuit component designation means and extracting first connection pin information at least describing position information of a specific connection pin Pin information extracting means, assignment of pin numbers for respective connection pins arranged in the circuit component designated by the second circuit component designating means, and position of a specific connection pin Second connection pin information extracting means for extracting at least second connection pin information describing information, and collating position information of a specific connection pin in the extracted first connection pin information and second connection pin information. A coordinate position optimizing means for optimizing the coordinate positions of these circuit components; and a first circuit component and a second circuit component based on the coordinate positions optimized by the coordinate position optimizing means. Connection pin number comparison means for associating the connection pins one by one and comparing the pin numbers of these connection pins, and connection pin number correspondence data for outputting the comparison result of the connection pin number comparison means as connection pin number correspondence data A connection pin number correspondence data generation system, comprising: output means. 2. A first circuit component designating means for designating a specific first circuit component from a circuit component library representing various types of information on circuit components managed by a first system; A second circuit component designating means for designating a specific second circuit component from a circuit component library representing various information of circuit components managed by a second system different from the second system; First connection pin information that at least describes the assignment of pin numbers for the connection pins arranged on the circuit component specified by the circuit component specification means, the coordinates of the origin of each connection pin, and the position of a specific connection pin A first connection pin information extracting means for extracting the circuit component, and a pin number assignment for each connection pin arranged in the circuit component designated by the second circuit component designating means Second connection pin information extracting means for extracting second connection pin information describing at least the coordinates of the origin of each connection pin and the position of a specific connection pin; and the extracted first connection pin information and second connection pin information. Coordinate reference point setting means for setting the origin of the coordinates of one system to the coordinates of the origin of the other system using the coordinates of the origin of each connection pin in the connection pin information of the connection pin; Coordinate position optimizing means for collating the positions of specific connection pins in the first connection pin information and the second connection pin information after the setting is performed, and optimizing the coordinate positions of these circuit components; The connection pins of the first circuit component and the second circuit component are associated one by one based on the coordinate position optimized by the coordinate position optimization means, and the pin numbers of these connection pins are assigned. A connection pin number comparison means for comparing the connection pin number comparison means, and a connection pin number correspondence data output means for outputting the comparison result of the connection pin number comparison data as connection pin number correspondence data. . 3. The coordinate position optimizing means adjusts the coordinate position by rotating the circuit component to match the coordinate position between the first circuit component and the second circuit component. 3. The connection pin number correspondence data generation system according to claim 1 or claim 2. 4. The connection pin number correspondence data generation system according to claim 1, wherein said first and second systems are respectively different logic circuit diagram creation systems for printed circuit boards. 5. The connection pin number correspondence data output means outputs connection pin number correspondence data for connection pins whose comparison results do not match by the connection pin number comparison means. Data generation system for connection pin numbers.