JPH0546693A - Circuit diagram generation system - Google Patents

Abstract

PURPOSE:To automatically generate a circuit diagram corresponding to the circuit of only a designating part by having a wire bound eliminating means which eliminates the wire bound equivalent to a signal name which is not designated, and a symbol eliminating means which eliminates the symbol without any wire bound. CONSTITUTION:An inputting means 2 inputs logical circuit diagram information 1, signal name designating means 3 designates the signal name of a signal included in the circuit of parts to be traced, and transfers it to a wire bound eliminating means 4. The wire bound eliminating means 4 eliminates the wire bound not corresponding to the designated signal name in the inputted circuit diagram information 1, and a symbol eliminating means 5 eliminates the symbol without any connection. An outputting means 6 outputs the pertinent circuit figure information as logical circuit diagram information 7. Thus, the circuit diagram corresponding to the circuit of only the designating part of the entire circuit can be automatically generated, so that the trace of the circuit of the necessary parts can be easily attained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit diagram generation system,
In particular, it relates to a method of generating a circuit diagram corresponding to a circuit having only a designated portion.

[0002]

2. Description of the Related Art Conventionally, when obtaining a circuit diagram of a designated portion, only that portion is traced on the circuit diagram, or an unnecessary portion is manually deleted on the circuit diagram editor.

[0003]

In the above-described conventional circuit diagram generation method, since the circuit of the designated portion is not separated, it is difficult to trace the circuit, and it is enormous to try to separate the circuit of only the designated portion. There was a drawback that it required a lot of man-hours.

[0004]

The circuit diagram generation system of the present invention comprises an input unit for inputting the entire circuit diagram information, a signal name designating unit for designating a signal name included in a part of a required circuit, It has a connection deletion means for deleting the connection on the circuit diagram corresponding to the unspecified signal name, a symbol deletion means for deleting the symbol with no connection, and an output means for outputting the circuit diagram of only the specified part. Is characterized by.

[0005]

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

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

The input means 2 inputs the logic circuit diagram information 1,
The signal name designating means 3 designates the signal name of the signal included in the circuit of the portion where tracing is required, and passes it to the connection deleting means 4.

The connection deleting means 4 deletes the connection corresponding to the signal name specified in the input circuit diagram information, and the symbol deleting means 5 deletes the symbols having no connection. The output means 7 converts the above circuit diagram information into the logic circuit diagram information 7
Output as.

2 to 4 show changes in circuit diagram information in this embodiment.

FIG. 2 is circuit diagram information of the initial circuit, and FIG.
2 is circuit diagram information in which connection lines corresponding to the signal name CLK + ... Are deleted from FIG. 2, and FIG. 4 is circuit diagram information in which unconnected symbols are deleted.

[0011]

As described above, the present invention has the effect of facilitating the tracing of the necessary parts of the circuit by automatically generating the circuit diagram corresponding to the circuit of only the designated part of the whole circuit.

[Brief description of drawings]

FIG. 1 is a block diagram of the present invention.

FIG. 2 shows an example of circuit diagram information of an initial circuit for setting the embodiment shown in FIG.

FIG. 3 shows circuit diagram information in which connection lines corresponding to some signal names in the circuit diagram information shown in FIG. 2 are deleted.

FIG. 4 shows circuit diagram information obtained by deleting the symbols whose connection is deleted from the circuit diagram information shown in FIG.

[Explanation of symbols]

 1 Logic Circuit Diagram Information 2 Input Means 3 Signal Name Designating Means 4 Connection Deleting Means 5 Symbol Deleting Means 6 Output Means 7 Logic Circuit Diagram Information

Claims (1)

[Claims] 1. An input means for inputting the whole circuit diagram information, a signal name designating means for designating a signal name included in a part of a required circuit, and a circuit diagram corresponding to a signal name not designated. A circuit diagram generation method comprising: a connection deletion unit for deleting a connection; a symbol deletion unit for deleting a symbol with no connection; and an output unit for outputting a circuit diagram of only a designated section.