JP2751215B2 - Wiring equipment by group - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a wiring connection device in a design stage of a large-scale integrated circuit (hereinafter, referred to as an LSI) or a printed circuit board.
In particular, between each gate in the LSI and each part on the printed circuit board,
The present invention relates to a group-specific wiring apparatus that can perform wiring by group such as one-stroke wiring, multi-branch wiring, or wiring of a net having a large line width.

2. Description of the Related Art Conventionally, this type of wiring device can automatically wire between terminal pins of a gate or a component in the order of input of an input pin pair, and display an unwired pin pair on a display device. it can.

(Problems to be Solved by the Invention) In general, a list of pin pairs to be wired includes, for example, a pin pair of a net that must be wired in one stroke, a pin pair of a net that must be wired in a multi-branch, or a line width. There are pin pairs having various characteristics, such as pin pairs of different nets.

When designing wiring for LSI and printed circuit boards,
Of these, for example, it is easier and more erroneous to wire the pin pairs of nets, such as single-stroke wiring, which are less likely to be miswired, and then wire the wires of the other groups to the unwired portions. Wiring is reduced and work efficiency is improved.

However, the conventional wiring device described above only tries to sequentially wire in the order of the input pin pairs, and even if the designer tries to wire only a part of the pin pairs,
There is a drawback that it is very difficult to wire only that portion exactly.

SUMMARY OF THE INVENTION An object of the present invention is to provide a wiring device for each group which can solve such a drawback and can select and wire only an arbitrary group of pin pairs from all the pin pairs.

(Means for Solving the Problems) In order to achieve the above object, a wiring device for each group according to the present invention comprises: an all pin pair list storage unit for storing all connection information of each terminal pin pair to be wired; A pin pair extraction unit that can select and extract an arbitrary group of pin pairs from the pin pairs stored in the pin pair list storage unit, and a group-specific pin that stores connection information of the pin pairs of the group extracted by the pin pair extraction unit. A pair list storage unit, a wiring unit for wiring pin pairs based on pin pair connection information stored in the group-specific pin pair list storage unit, a display unit for displaying a wiring result by the wiring unit, and an input unit. The input unit designates a pin pair group name that the user has and wants to wire by using the input unit. And an instruction is given to the wiring unit so that only the pin pairs belonging to the group can be wired.

(Example) Next, the present invention will be described with reference to the drawings.

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

As shown in FIG. 1, this embodiment includes a wiring unit 1, a display unit 2, an input unit 3, an all pair list storage unit 4, a pin pair extraction unit 5, and a group-specific pin pair list storage unit 6.

The pin pair extraction unit 5 receives the instruction from the input unit 3 and selects the input unit 3 from all connection information (all pin pair list) of each terminal pin pair to be wired stored in the all pin pair list storage unit 4. Only the pin pair corresponding to the group name designated by the above is extracted and output to the group-specific pin pair list storage unit 6 for storage.

The wiring unit 1 sequentially performs wiring based on information read from the group-specific pin pair list storage unit 6 in response to an instruction from the input unit 3.

 The display unit 2 displays a wiring result of the wiring unit 1.

Next, a usage example and an operation example of the embodiment of FIG. 1 will be described.

When the designer first desires to wire only one-stroke wiring nets, he inputs a group name corresponding to the one-stroke wiring from the input unit 3, and the pin pair extraction unit 5 reads the group name from the all pin pair list storage unit 4. The pin pair corresponding to the name is output to the pin pair list storage unit 6 for each group.

When the output is completed, the wiring unit 1 displays the unwired pin pairs in the group-by-group pin pair list on the display unit 2 as unwired pin pairs.

At this point, since the wiring has not been performed yet, all the pin pairs in the single-stroke wiring group are displayed as unwired pin pairs.

When a wiring instruction is given from the input unit 3, the wiring unit 1 sequentially performs wiring processing for the pin pairs stored in the group-specific pin pair list storage unit 6, and when the pin pair wiring is completed, the wiring path is displayed on the display unit. 2 is displayed. If the pin pair cannot be wired, the unwired pin pair is displayed on the display unit 2.

In this way, a series of processing is performed on the group-specific pin pair list, and when this processing is completed, only the unwired pin pairs that have not been able to be wired and the wired wiring paths in the group-specific pin pair list have been removed. It is displayed on the display unit 2.

If all the pin pairs stored in the group-specific pin pair list storage unit 6 cannot be wired and an unwired pin pair is generated, a wiring instruction with changed wiring parameters is input from the input unit 3 and a wiring is performed. Since the unit 1 re-wires only the unwired pin pairs in the group-by-group pin pair list, all units in the group-by-group pin pair list storage unit 6 are repeated by repeating this series of processing. Pin pairs can be wired.

Therefore, when the wiring is completed, the display unit 1 displays all the wiring paths of the pin pair list for each group.

Next, if the designer wants to wire only nets having a large line width, the user inputs a group name corresponding to the nets having a large line width from the input section 3, and the pin pair extraction section 5 stores all pin pair lists. The pin pair corresponding to the group name specified by the input unit 3 from the unit 4 is output to the group-specific pin pair list storage unit 6.

When the output is completed, the display unit 2 displays the unwired pin pairs in the group-by-group pin pair list storage unit 6 and the one-stroke writing wiring route wired so far.

When a wiring instruction is issued from the input unit 3, the wiring unit 1 sequentially performs wiring processing on the pin pairs stored in the group-specific pin pair list storage unit 6, and displays a wiring path when the pin pair wiring is completed. Displayed in section 2. If the pin pair cannot be wired, the unwired pin pair is displayed on the display unit 2. Thus, a series of processing is performed on the group-specific pin pair list. When this series of processing is completed, the display section 2 displays, from the group-specific pin pair list, a wiring path that could not be wired and a non-wired pin pair and a wiring path that was initially wired as a one-stroke wiring.

Thereafter, in the case of one-stroke writing, similar processing is performed to complete the wiring of a net having a large line width.

Thereafter, by continuing the processing in the same manner, it is possible to wire only the pin pairs desired by the designer from the all pin pair list.

(Effects of the Invention) As described above, according to the present invention, by dividing the pin pairs into groups, only the pin pairs desired by the designer can be wired, so that the wiring order can be changed accurately according to the characteristics of the groups. There is an effect that wiring can be performed efficiently.

[Brief description of the drawings]

 FIG. 1 is a block diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Wiring part 2 ... Display part 3 ... Input part 4 ... All pin pair list storage part 5 ... Pin pair extraction part 6 ... Pin pair list storage part by group

Claims (1)

(57) [Claims] 1. An all-pin pair list storage unit that stores all connection information of each terminal pin pair to be wired, and a pin pair of an arbitrary group selected from the pin pairs stored in the all pin pair list storage unit. A pin pair extraction unit that can be selectively extracted; a pin pair list storage unit for storing connection information of a pin pair of a group extracted by the pin pair extraction unit; and a pin pair stored in the pin pair list storage unit for group. A wiring unit for wiring pin pairs based on the connection information of the above, a display unit for displaying a wiring result by the wiring unit, and an input unit, and by specifying a pin pair group name to be wired by the input unit, The input unit gives an instruction to the pin pair extraction unit and the wiring unit, and only the pin pairs belonging to the group are wired. Group-specific interconnection apparatus characterized by the so that configuration.