JPH04309176A - Method for preparing electric circuit diagram - Google Patents

Abstract

PURPOSE:To simplify a circuit diagram 4 by providing an equivalent information source separately from the circuit diagram so as to show that plural circuit elements described at various positions on the circuit diagram are the same type. CONSTITUTION:On plural circuit diagrams 1 and 4, the same type of circuit elements 2 and 5 are described at the plural positions for reference. By describing them in this way, the function of the circuit elements 2 and 5 can be clearly recognized for each position which is referred to. In order to permit such a description, an equivalent information source 3 is separately added for showing that the circuit elements 2 and 5 have the same purpose of mounting design. By the equivalent information (G2=G12) of this equivalent information source 3, the description can be handled samely as the conventional one. Concerning a simulator or an interface to a mounting design tool, it is not necessary to describe any wiring to connect the circuit diagrams 1 and 4 excepting for this. Thus, the complexity of the diagram is canceled, the function of the circuit element can be easily referred to at the required position, and the diagram itself can be simplified.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for creating electrical circuit diagrams, and more particularly to a method for creating electrical circuit diagrams for large-scale integrated circuits and the like in support of electrical circuit design.

0002

2. Description of the Related Art Conventionally, when drawing electrical circuits such as large-scale integrated circuits, for example inputting, modifying, editing, etc., a large number of man-hours are required.

FIG. 2 is a schematic diagram of a circuit diagram for explaining an example of such a conventional method. As shown in FIG. 2, when the same circuit element 7 is used at multiple locations on the circuit drawings 6 and 10, the circuit element 7 and the inter-drawing terminals 8 and 9 are described in one location to match the mounting design. In addition, wiring is faithfully connected from other locations via inter-drawing terminals 11 and 12. These inter-drawing terminals 8, 9 and 11, 12 represent additional wiring and terminals added to refer to the same circuit element 7 at multiple locations. If this is done, the drawings become complicated and moreover, it takes a lot of time and effort to write them. In addition, the circuit element 7 to be referenced is written in only one place (circuit drawing 6), and when referring to other places, a method is adopted in which the function of that element is known by turning over several circuit drawings. ing.

0004

[Problems to be Solved by the Invention] The above-mentioned conventional method for creating electrical circuit drawings has a problem in that when the same circuit element needs to be referenced in multiple places or in multiple drawings,
To maintain a one-to-one correspondence, the circuit element is only allowed to be written in one place. Moreover, it is necessary to connect the other reference points with wiring. Therefore, the conventional production method has the drawback that the drawings are complicated, and where the function of the circuit element needs to be referenced, the function cannot be understood.

An object of the present invention is to provide a method for creating electrical circuit drawings that eliminates the complexity of such drawings, allows easy reference to the functions of circuit elements where necessary, and makes the drawing itself easy to read. It's about doing.

[0006]

[Means for Solving the Problems] The method for creating an electric circuit drawing of the present invention provides an equivalent information source indicating that circuit elements described in multiple places on a circuit drawing are the same, separately from the circuit drawing. By providing this, the wiring on the circuit drawing can be simplified and the interface to a simulator and packaging design tool can be smoothly performed.

[0007]

Embodiments Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a schematic diagram of a circuit diagram for explaining one embodiment of the present invention. As shown in FIG. 1, in this embodiment, the same circuit elements 2 and 5 are described at multiple locations on multiple circuit drawings 1 and 4 as needed for reference. By describing in this way, the functions of the circuit elements 2 and 5 can be clearly understood for each reference location. In order to allow this, in this embodiment, an equivalent information source 3 indicating that the circuit elements 2 and 5 described in a plurality of places are equivalent in terms of implementation design is added separately. Based on the equivalent information (G2=G12) of this equivalent information source 5, the described FIG. 1 is automatically converted into the circuit diagram of FIG. 2, which is the same as the conventional method. At this time, if you are only considering the interface to the simulator or implementation design tool,
There is no need to specifically generate the wiring or terminals 8, 9, 11, 12; it is sufficient to create abstract data that corresponds to them.

[0009] The above contents will be explained step by step.
First, the same circuit elements 2 and 5 are allowed to be described in all locations that require reference, and then information G2=G12 is added indicating that the circuit elements 2 and 5 described in multiple locations are equivalent. In addition, simulation and implementation design tools and 1
In order to achieve a one-to-one correspondence, circuit elements 2 and 5 described in multiple locations are left in only one location, and circuit elements are deleted from reference locations other than the remaining locations and connected by wiring. If the circuit drawings 1 and 4 are created using such a procedure, only an interface to the tool is required, so there is no need to specifically delete elements or draw wiring on the circuit drawings 1 and 4.

In short, in this embodiment, the same circuit element 2
, 5 in multiple places or in multiple drawings 1 and 4, the circuit elements 2, 5 are separately described in multiple places in order to allow the circuit elements 2, 5 to be described in each of the necessary places. An equivalent information source 3 indicating that 5 is equivalent is provided, thereby making the drawing simple and easy to read.

[0011]

[Effects of the Invention] As explained above, in the present invention, the same circuit element is described at each necessary reference location, so that the circuit designer can easily understand the function of the circuit element at the required location. This has the advantage that there is no need to add unreasonable wiring or complicated wiring to match the packaging design, and the circuit drawing can be created in an easy-to-read manner.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of a circuit diagram for explaining an embodiment of the present invention.

FIG. 2 is a schematic diagram of a circuit diagram for explaining a conventional example.

[Explanation of symbols]

1,4　　　　Circuit drawing 2,5　　　Circuit element 3 Equivalent information source

Claims (1)

[Claims] 1. By providing an equivalent information source separate from the circuit drawing that indicates that circuit elements described in multiple places on the circuit drawing are the same, connections on the circuit drawing can be simplified and the simulator A method for creating electrical circuit drawings characterized by a smooth interface to an implementation design tool.