JPH0619995A - Circuit diagram editing system - Google Patents

Abstract

PURPOSE:To enable editing and display within a prescribed area even when there are many input/output pins of a block to be edited and to easily discrimi nate a connecting relation between blocks. CONSTITUTION:A display window part 30 vertically and horizontally moves a scroll bar 32a positioned on the side of the display window part 30 and the scroll bar 32b positioned on the lower side, moves the display part 30 to an optional position and also magnifies or reduces the editing area. Then, the input/output pins of the blocks BLK1, BLK2 and BLK3 corresponding to column numbers 01, 02 and 03 and net names NET1, NET2, RST and plus (+) 5V... are freely prepared, deleted and revised by using editing commands from an input/output device.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a circuit diagram editing system which is used in an electronic circuit diagram editing system or the like to display a circuit diagram in a list of block names and net names for circuit diagram editing.

[0002]

2. Description of the Related Art In a conventional electronic circuit diagram editing system, blocks constituting a circuit diagram are displayed by rectangular or bowl-shaped symbols. Then, an input / output pin is drawn out from this symbol, and the input / output pin is edited by connecting wires to create a circuit diagram.

[0003]

In the electronic circuit diagram editing system of the above-mentioned conventional example, when the number of input / output pins of the block becomes large, it is necessary to set the area of the symbol large accordingly. Therefore, there is a case where a desired circuit diagram cannot be displayed in a predetermined area, and there is a problem that the connection state cannot be easily determined because the number of connection lines between the input and output pins increases.

The present invention solves such a problem in the prior art, and enables editing and displaying within a predetermined area even when the number of input / output pins of a block is large. It is an object of the present invention to provide a circuit diagram editing method capable of easily discriminating connection relationships.

[0005]

[Means for Solving the Problems] To achieve the above object
In the circuit diagram editing method of the present invention, a plurality of block names and
A net showing the connection relationship between the I / O pins of these blocks.
Circuit diagram edit data that stores the circuit diagram edit data
Data storage means and connection fingers between input / output pins of multiple blocks
Edit command input procedure
Stage and the block in the schematic edit data corresponding to the edit command.
Lock name and net name from the circuit diagram edit data storage means
Analyzing means for performing analysis for reading and analysis by the analyzing means
Block read from the circuit diagram edit data storage means.
A list of network names and net names is displayed, and at least
When you edit the circuit diagram that connects the input and output pins of the block
In both cases, the edited schematic data is recorded as the schematic edit data.
Circuit diagram editing / storing means for performing processing of storing in storage means
And display means for displaying the processing status in editing.
There is a configuration.

Further, in this configuration, a plurality of block names are sequentially displayed in the upper horizontal column, and net names indicating the connection relationships between the input / output pins of the plurality of blocks are sequentially displayed in the horizontal vertical column. The input pins are indicated by hollow circles, the output pins are indicated by black circles, and the input / output pins are connected by connecting lines to edit the circuit diagram.

Further, in these configurations, an arbitrary circuit diagram portion is displayed in the display window portion, and when a circuit diagram in the display window portion is edited, a new command designated by the edit command from the edit command input means is added. A circuit diagram is edited by simultaneously connecting connection lines between the additional input / output pin and another input / output pin in the same net name as this input / output pin.

[0008]

According to the circuit diagram editing method of the present invention having the above structure, the block names and net names read from the circuit diagram editing data storage means are displayed in a list form, and at least the input / output pins of a plurality of blocks are connected. Editing the circuit diagram. In this case, even if the number of input / output pins of the block is large, editing and display can be performed within a predetermined area, and the connection relationship between blocks can be easily determined.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the circuit diagram editing system of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of an electronic circuit diagram editing system according to an embodiment. In FIG. 1, the input / output device 1 is connected to the arithmetic processing device 2. The input / output device 1 inputs data necessary for editing the circuit diagram,
Further, the edited result is displayed on the display. The arithmetic processing unit 2 stores the edited result, and edits a circuit diagram of a plurality of block names described below and a net name indicating a connection relationship between input / output pins of the plurality of block names. A data storage device 3 for storing data in advance is connected. The arithmetic processing unit 2 analyzes the data and the editing command input from the input / output unit 1, the editing unit 22 that edits the circuit diagram of the data and writes the data to the data storage unit 3, and the editing unit 22. The display processing unit 23 performs a process for reading the editing result of the unit 22 from the data storage device 3 and displaying it on the input / output device 1. The data storage device 3 stores and reads data according to an instruction from the arithmetic processing device 2.

Next, the circuit diagram editing in the configuration of this embodiment will be described. FIG. 2 shows a conventional plural circuit diagram, and the first circuit diagram is an IC having many input / output pins.
Blocks BLK1, BLK2, BLK3 are arranged. In FIG. 2, the block BLK1 has an input pin A0.
The block BLK2 has input pins A01 and A02 and an output pin A0.
3 and 3. Further, the block BLK3 is provided with output pins A01 and A02 and an input pin A04.

FIG. 3 shows the circuit diagram shown in FIG. 2 as a list of block names and net names. In FIG. 3, the block names (BLK1, BLK2, BLK3) of the blocks BLK1, BLK2, BLK3 in FIG.
3) is stored in the data storage device 3, is read from the data storage device 3 according to an input instruction of the input / output device 1, and is displayed on the input / output device 1 through the display processing unit 23. In FIG. 3, column numbers 01, 02, and 03, which are the arrangement order of the block names BLK1, BLK2, and BLK3, are displayed in the upper horizontal column of the list. In addition, net names NET1, NET2, RST (reset), plus (+) 5V, etc., which indicate the connection relationship between the input / output pins (A01 to A04) of the blocks BLK1, BLK2, BLK3, are sequentially arranged in the horizontal column of the list. It is displayed.

Net names NET1, NET2, RST, plus (+) 5V ... Are blocks BLK1, BLK2, B
The input / output pins A01 to A04 of LK3 are connected to each other based on an electrical connection request. At this time, the input pins are indicated by hollow circle dots and the output pins are indicated by black circles. That is, in FIG. 3, the input pins A01 and A in the block BLK1 are
03 and A04 are indicated by hollow circle dots, and the output pin A02 is indicated by a black circle. Input pin A0 in block BLK2
1, A02 is shown by a hollow circle dot, and the output pin A03 is shown by a black circle. Further, the output pins A01 and A02 in the block BLK3 are indicated by black circles, and the input pin A04 is indicated by a hollow circle dot. Then, these input / output pins A01
The hollow circle dots and black circles between A04 and A04 are connected by connecting lines.

In FIG. 3, in the net name NET1, the black circle of the output pin A03 of the block BLK2 and the block BL.
Connect the input pin A01 of K1 and the hollow round dot with a connecting line,
Further, in the net name NET2, the black circle of the output pin A02 of the block BLK1 and the input pin A0 of the block BLK3.
It is shown by connecting the hollow circle points of 4 with connecting lines.
In the net name RST, the black circle on the output pin A02 of the block BLK3 that outputs the RET signal and the block B
Connected to the hollow round points of the input pin A01 of LK2 and the input pin A03 of the block BLK1 by connecting lines, respectively, that is,
They are connected in parallel as seen from the output pin A02 of the block BLK3.

Next, in the case of the net name + 5V, the black circle of the output pin A01 of the block BLK3 that outputs + 5V and the hollow circle point of the input pin A02 of the block BLK2 and the input pin A04 of the block BLK1 are connected by connecting lines, that is, They are connected in parallel as seen from the output pin A01 of the block BLK3. Note that in FIG. 3, the net names NET1 and NET
2, RST (reset), plus (+) 5V other connections are displayed.

FIG. 4 shows a display window section 30 for designating an editing area when the circuit diagram in FIG. 3 is edited.
Are shown in detail. In FIG. 4, the display window unit 30 operates the input / output device 1 in FIG. 1 to move the scroll bar 32a located next to the display window unit 30 and the scroll bar 32b located below the display window unit 30 up, down, left and right. To move the display window section 30 to an arbitrary position in FIG. 4 and enlarge or reduce the editing area. This enables editing at any place. That is, in FIG. 4 during editing, column numbers 01, 02, 0
Blocks BLK1, BLK2, BLK3 corresponding to 3 and net names NET1, NET2, RST, plus (+)
Input / output pins of 5V are freely created, deleted, and changed by using the edit command from the input / output device 1.

FIG. 5 shows an example of connection editing for connecting an output pin and a new input pin using an edit command.
In FIG. 5, when the input pin a is additionally displayed by using the edit command within the same net name, the display of the input pin a and the connection line c between the output pin b and the previously displayed output pin are simultaneously displayed. To be done.

In this way, the block names (BLK1, BLK
2, BLK3) and net name (NET1, NET2, RS
T, plus (+) 5V ...) is used to edit the circuit diagram, and it is easier to see the connection between block names (BLK1, BLK2, BLK3) compared to the conventional circuit diagram editing shown in FIG. It is not necessary to provide a lot of space for doing so, and the entire area of the circuit diagram to be displayed can be reduced.

[0018]

As described above, according to the circuit diagram editing method of the present invention, the block names and net names read out from the circuit diagram editing data storage means are displayed in a list form, and at least the input / output pins of a plurality of blocks are Since the circuit diagram for connecting the blocks is edited, it is possible to edit and display within a specified area even when the number of input / output pins of the block is large, and further, the connection relationship between blocks can be easily determined. Have.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of an electronic circuit diagram editing system according to an embodiment of a circuit diagram editing system of the present invention.

FIG. 2 is a circuit diagram used for explaining an embodiment and displayed by conventional editing.

FIG. 3 is a circuit diagram in which the block name is displayed in the upper horizontal column and the net name indicating the connection relationship between the input and output pins is displayed in the horizontal vertical column for the explanation of the embodiment.

FIG. 4 is a circuit diagram showing the display window section in FIG. 3 in detail, which is used for explaining the embodiment.

FIG. 5 is a circuit diagram which is used for explaining an embodiment and shows an example of connection editing.

[Explanation of symbols]

 1 Input / output device 2 Arithmetic processing device 3 Data storage device 21 Analysis part 22 Editing part 30 Display window part 32a, 32b Scroll bar

Claims (3)

[Claims] 1. A circuit diagram edit data storage means for storing circuit diagram edit data of a plurality of block names and a net name indicating a connection relationship between input / output pins of the plurality of blocks, and inputting of the plurality of blocks. Edit command input means for inputting an edit command for instructing connection between output pins, and reading out the block name and net name in the circuit diagram edit data corresponding to the edit command from the circuit diagram edit data storage means. And a net name, which is analyzed by the analyzing means and which is analyzed by the analyzing means and read from the circuit diagram editing data storage means, are displayed in a list, and at least input / output pins of the plurality of blocks are connected. Circuit diagram editing / storing processing means for performing circuit diagram editing and storing the edited circuit diagram data in the circuit diagram editing data storage means. And a display unit for displaying a processing state in the above editing, a circuit diagram editing method. 2. A plurality of block names are sequentially displayed in an upper horizontal column, a net name showing a connection relationship between input / output pins of the plurality of blocks is sequentially displayed in a horizontal vertical column, and the input pins are further displayed. 2. The circuit diagram editing method according to claim 1, wherein the circuit diagram is edited by displaying hollow circles, displaying output pins by black circles, and connecting the input and output pins with connecting lines. 3. An arbitrary circuit diagram portion is displayed in the display window portion, and a new additional input / output pin designated by an edit command from the edit command input means when editing the circuit diagram in this display window portion and this input 3. The circuit diagram editing method according to claim 1 or 2, wherein the circuit diagram is edited by simultaneously connecting a connecting line to the output pin and another input / output pin in the same net name.