JP3125754B2 - Circuit symbol creation system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a circuit diagram creation system, and more particularly to a circuit symbol creation system suitable for application to a CAD (Computer Assisted Design) system.

[0002]

2. Description of the Related Art In a design system for a printed wiring board or the like using CAD, arrangement and wiring design are performed using circuit component information registered in advance.

Conventionally, the creation of a symbol for a circuit component has been performed independently of creation of pin information of the circuit component and creation of a symbol shape of the circuit component.

[0004]

As described above, in the process of creating the symbol of the circuit component, the creation of the pin information of the component and the creation of the symbol shape of the component are performed independently of each other. It is necessary to input the pin number and the pin name of the part at the time of both the creation of the pin information of the part and the creation of the symbol shape of the part. In addition, the pin number and the pin name may not correspond to each other between the pin information of the component and the symbol shape of the component, resulting in a problem of lowering the quality of the circuit component symbol. If there is no correspondence between the pin information and the pin name between the pin information of the circuit component and the symbol shape of the component, new man-hours such as correction work are required.

Accordingly, the present invention has been made in view of the above-mentioned problems, and an object of the present invention is to provide a circuit symbol creation method for reducing the number of steps for creating circuit part symbols and improving the quality of circuit part symbol creation. To provide.

[0006]

According to the present invention, there is provided a component defining means for setting the number of pins of a circuit component symbol and a name of the circuit component symbol, a pin number, a pin name and a characteristic of the circuit component symbol. And pin shape definition means for generating a shape of the circuit component symbol and assigning the set pin number and pin name to the symbol. The pin information definition means and the shape definition means When the pin number or the pin name is changed by one of the means, the pin number or the pin name is changed by the other means in conjunction with the change.

[0007]

Embodiments of the present invention will be described below. In a preferred embodiment of the present invention, the component definition means (5 in FIG. 1) for setting and inputting the number of pins of the circuit component symbol and the name of the circuit component symbol and outputting the setting information to the display means. And a pin number corresponding to the number of pins set and input by the component definition means, and input and set a pin name and its characteristic for each pin number of the circuit symbol, and output these setting information to the display means. Pin information defining means (6 in FIG. 1), and shape defining means (7 in FIG. 1) for generating a shape of the circuit component symbol and outputting the symbol shape to the display means. , the circuit component symbol shape, the set symbol name in part defining means, and, and the pin information definition unit pin numbers and pin name that is set in the assigned pin information definition unit, and If the setting information with one hand <br/> stage Jo defining means is changed, in which this change was constructed to reflect the information held by other means.

[0008] In one embodiment of the present invention, the component defining means, the pin information defining means, and the shape defining means can be realized by program control executed on an arithmetic processing unit (computer). The present invention also includes a recording medium on which a program for executing these means is recorded.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention;

FIG. 1 is a block diagram showing the configuration of one embodiment of the present invention. Referring to FIG. 1, one embodiment of the present invention includes an input / output device 1, an arithmetic processing device 2, a data storage device 3, and a circuit symbol creating means 4.

The circuit symbol creating means 4 includes a component defining means 5 for defining the number of pins and a symbol name of a circuit component symbol (also referred to as a “circuit symbol”), and a pin for defining a pin number, a pin name and a characteristic of the circuit symbol. It comprises information defining means 6 and shape defining means 7 for defining the shape of the circuit symbol. As will be described later, the component definition unit 5, the pin information definition unit 6, and the shape definition unit 7 are the pin information definition unit 6 or the shape definition unit 7 using the pin number and the pin name of the circuit component as a key. When the pin name corresponding to the pin number is changed, the pin name by other means is also changed in conjunction with it.

FIGS. 2 to 4 are diagrams schematically showing a procedure for creating a circuit symbol by applying the present invention.
It is a figure which shows typically the mode of input / output on the display screen of the display terminal of an apparatus.

In FIGS. 2 to 4, the component definition unit 5, the pin information definition unit 6, and the shape definition unit 7 are shown in FIG.
2 shows an input / output screen of a display terminal of each of the component definition means 5, the pin information definition means 6, and the shape definition means 7. The display screens shown in FIGS. 2 to 4 are schematically shown for the sake of simplicity of description, and the present invention is not limited to the arrangement and format of the display screens. is there.

First, referring to FIG. 2A, when the number of pins 11 and the symbol name 10 of the component definition unit 5 are set and input,
Pin numbers 21 for the number of pins specified in the pin information definition section 6
Is automatically generated. The pin number information is held in a predetermined storage area of the data storage device 3.

Referring to FIG. 2A, when "7" is set in the input field 11 for the number of pins, "01" to "07" are automatically generated and displayed as the pin numbers 21 in the pin definition section. You.

Then, the symbol shape 3
1 is automatically generated, and a symbol name is given to the symbol shape 31. As the symbol name, the name set and input in the symbol name input field 10 of the component definition unit 4 is used.
In (a), the symbol shape 31 has "D" as the symbol name.
RV ".

Next, referring to FIG. 2B, a pin name 22 and a pin characteristic 23 corresponding to the pin number 21 of the pin information definition section 6 are input. In the example shown in the figure, the pin number 01 is “G”, the pin numbers 02, 04 and 06 are “A1”, “A”.
2 ”,“ A3 ”, and pin numbers 07, 05, and 04
Pin names “1”, “Y2”, and “Y3” are input, and as the characteristics of each pin, for example, pin attributes such as an input pin, an output pin, an input / output pin, a power supply pin, and a ground pin are input.
The correspondence between the input pin names, characteristics, and pin numbers is stored in a predetermined area of the data storage device 3.

Further, referring to FIG. 3C, for example, the pin number 02 of the pin information defining section 6 is changed to the shape defining section 7.
Is dragged and dropped to an arbitrary coordinate of the symbol shape 31 using a pointing device such as a mouse, a lead line 32 is automatically generated in the symbol shape 31 of the shape definition unit 7, and a pin number 02 and a pin name are added to the lead line 32. A
1 is automatically displayed. Referring to FIG. 3C, the pin numbers 01 and 0 are added to the symbol shape 31 by the same operation.
The settings of 3, 05 have already been made.

Next, referring to FIG. 3D, when the pin name is changed from the shape definition unit 7, for example, when the pin name of the pin number 05 of the shape definition unit 7 is changed to “BB”,
The pin name corresponding to the pin number 05 of the pin information definition section 6 is also changed to “BB” in conjunction with the change.

Referring also to FIG. 4, the pin information defining section 6
For example, if the pin name of the pin number 02 of the pin information definition unit 6 is changed to “CC”,
The pin name corresponding to the pin number 02 of the shape definition unit 7 is “C
C ".

[0021]

As described above, according to the present invention,
The circuit component pin information definition unit and the circuit component symbol shape definition unit are configured so that the circuit symbol can be created in conjunction with each other, thereby reducing the number of steps for creating the circuit component symbol and improving the quality of the circuit component symbol. The effect is as follows.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of the present invention.

FIGS. 2A and 2B are diagrams for explaining an embodiment of the present invention, and are diagrams schematically showing a display screen showing an example of a procedure for creating a circuit component symbol on a display terminal; is there.

FIGS. 3 (c) and 3 (d) are diagrams for explaining one embodiment of the present invention, and are diagrams schematically showing a display screen showing an example of a circuit component symbol creation procedure on a display terminal. is there.

FIG. 4 is a diagram for explaining one embodiment of the present invention;
It is a figure which shows typically the display screen which shows an example of the circuit component symbol creation procedure on a display terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 I / O device 2 Arithmetic processing unit 3 Data storage device 4 Circuit symbol creation means 5 Parts definition part 6 Pin information definition part 7 Shape definition part

Claims (4)

(57) [Claims] 1. A component definition means for setting the number of pins of a circuit component symbol and the name of the circuit component symbol; a pin information definition means for setting a pin number, a pin name and characteristics of the circuit component symbol; And a shape defining means for giving the set pin number and the pin name to the shape of the symbol, wherein one of the pin information defining means and the shape defining means has a pin number or a pin name. Wherein the pin number or the pin name is changed by other means in conjunction with the change of the circuit symbol. 2. The component definition means for setting and inputting the number of pins of a circuit component symbol and the name of the circuit component symbol, and outputting the setting information to a display means, and setting and inputting by the component definition means. A pin information defining means for automatically generating pin numbers corresponding to the number of pins, setting and inputting pin names and characteristics thereof for each pin number of the circuit component symbol, and outputting these setting information to the display means; A shape defining means for generating a shape of a component symbol and outputting the symbol shape to the display means, wherein in the shape defining means, a symbol name set by the component defining means for the circuit component symbol shape; as well as,
The pin information defining means and pin numbers and pin name set is assigned by, the pin information definition unit, and the case where the setting information in hand of <br/> means shape definition means is changed, this A circuit symbol creation device characterized in that the change is reflected in information held by other means. 3. When the pin information is changed on one of the pin information defining means and the shape defining means, the content of the change is reflected on the pin information held by another means using the pin information as a key. 3. The circuit symbol creation device according to claim 2, wherein: 4. A component definition means for setting and inputting the number of pins of a circuit component symbol and the name of the circuit component symbol, and outputting the setting information to a display means, and b. A pin information definition for generating pin numbers corresponding to the number of pins set and input in the step (a), setting and inputting pin names and their characteristics for each pin number of the circuit component symbol, and outputting these setting information to the display means. And (c) shape defining means for generating a shape of the circuit component symbol and outputting the symbol shape to the display means, wherein in the shape defining means, the component definition is added to the circuit component symbol shape. The symbol name set by the means, and
A pin number and a pin name set by the pin information defining means are assigned. (D) When the setting information is changed by any one of the pin information defining means and the shape defining means, A recording medium comprising means for controlling a change to be reflected in information held by another means, and recording a program for causing each of the means (a) to (d) to function on a computer.