JP2000276516A - Design system and display method for printed board wiring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make easily judgeable which part pin is an output pin among plural connection pins when a signal having a single-stroke-write wiring condition is wired by displaying the input and output pins of a parts in different colors. SOLUTION: A display processor 1 includes a parts selection means 11, a data reading means 12 and a display control part 13 and has a function to display the input and output pins of a parts in different colors. In this system, a display means 2 displays all part pins in the normal color in an initial state according to the parts information on a printed board stored in a storage 4. When the means 11 selects an optional part, the means 12 reads the pin information on an object parts out of the storage 4 in response to the selected parts. Then the means 13 displays the input and output pins in different colors. Thus, a worker can know the pin information on the parts without looking at a circuit diagram and accordingly, can effectively carry out the work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiring design technique for a CAD system or the like, and more particularly, to a printed circuit board wiring design system and a printed circuit board wiring display method for displaying input pins and output pins of components in different colors.

[0002]

2. Description of the Related Art In a conventional wiring design technique of a printed circuit board using a CAD system or the like, a wiring condition of a single stroke, a wiring condition such as a wiring length and a branch length of a clock signal output from a high-speed operation component, or a difference between wiring conditions. In the case where there is a wiring condition for balanced transmission of a signal output from a moving component, the operator has to look at the circuit diagram to know the output pin, and thus there is a problem that the work efficiency is poor. As a conventional technique for solving such a problem, there is, for example, a technique disclosed in Japanese Patent Application Laid-Open No. 3-225471. That is, in the prior art, a means for reading component arrangement information and connection information into a memory and displaying the information on a display, taking out a pair of terminals to be connected from the memory, examining a hierarchical level at which each of the two end points is located, and changing the display form of the pin pair. It has a means for classifying and a means for finding the position bisecting the two points and highlighting the position and connection relationship of the two points in a display form according to the classification result.

[0003]

However, according to the prior art, it is difficult to determine which component pin among a plurality of connection pins is an output pin when wiring a signal having a one-stroke wiring condition. There was a problem.

The present invention has been made in view of the above problems, and has as its object to provide a printed circuit board wiring design system and a printed circuit board wiring display method for displaying input and output pins of components in different colors. The point is to provide.

[0005]

The gist of the present invention is to provide a printed circuit board wiring design system for displaying input pins and output pins of a component in different colors, wherein the input pins and the output pins of the component are displayed. A display processing device having a function of changing colors for display, a display device having a function of displaying component pins of a printed circuit board in a predetermined color, an input device having a function of inputting an instruction to select an arbitrary component, and a printed circuit board And a storage device having a function of storing the component information of the printed circuit board. According to another aspect of the present invention, the display processing device includes a component selection unit having a function of selecting an arbitrary component, and a data reading unit having a function of reading pin information of a target component from the storage device. And a display control means having a function of displaying input pins and output pins of the target component in different display colors. According to another aspect of the present invention, in the initial state, all component pins are displayed in a normal color on the display device based on component information of a printed circuit board stored in the storage device. In response to selection of an arbitrary component by the component selection unit, the data reading unit reads the pin information of the target component from the storage device, and the display control unit displays the input pin and the output pin of the target component in different display colors. The printed circuit board wiring design system according to claim 2, wherein the system is configured as described above. The gist of claim 4 of the present invention is that, in an initial state, all component pins for components displayed on a window-type CAD screen are displayed in a normal color, and an arbitrary component is selected and displayed. When switching, the input display pin of the selected component is displayed in a preset input pin color, and the output display pin of the selected component is displayed in a preset output pin color. The printed circuit board wiring design system according to claim 2 or 3, wherein According to a fifth aspect of the present invention, there is provided a printed circuit board wiring display method for displaying input pins and output pins of a component in different colors, wherein the function of displaying the input pins and output pins of the component in different colors is provided. A display processing step having a function of displaying component pins of a printed board in a predetermined color, an input step having a function of inputting an instruction to select an arbitrary component, and a function of storing component information of the printed board. And a storage step having the same. According to another aspect of the present invention, the display processing step includes a component selection step having a function of selecting an arbitrary part, and a data reading step having a function of reading pin information of a target component from the storage step. 6. A display control step having a function of displaying input pins and output pins of a target component in different display colors.
In the printed circuit board wiring display method. The gist of claim 7 of the present invention is that, in the initial state, based on the component information of the printed circuit board stored in the storage process, displaying all component pins in a normal color; A step of reading the pin information of the target part from the storage step in accordance with selection of an arbitrary part by the step, and a step of displaying the input pins and the output pins of the target part in different display colors by the display control step. 7. The printed circuit board wiring display method according to claim 6, wherein: The gist of claim 8 of the present invention is that a window-type CAD
The process of displaying all the component pins for the component displayed on the screen in the normal color, and the process of displaying the selected component with the preset input pin color when the display is switched by selecting an arbitrary component. Displaying the input display pin and displaying the output display pin of the selected component in a preset color of the output pin, the printed circuit board wiring display according to claim 6 or 7, wherein Be in the way.

[0006]

FIG. 1 is a block diagram showing an embodiment of the present invention. The printed circuit board wiring design system according to the present embodiment has a component selection unit 11, a data reading unit 12, and a display control unit 13, and has a function of displaying input pins and output pins of components in different colors. A display device 2 for displaying component pins of the printed circuit board; an input device 3; and a storage device 4 for storing component information of the printed circuit board. Referring to FIG. 1, in the printed circuit board wiring design system according to the present embodiment, in the initial state, all the component pins are displayed in a normal color on the display device 2 based on the component information of the printed circuit board stored in the storage device 4. Is displayed. Subsequently, when the component selecting unit 11 selects an arbitrary component, the data reading unit 12 reads the pin information of the target component from the storage device 4 accordingly, and the display control unit 13 sets the input pin and the output pin of the target component to be different. Display in display color. As a result, the worker can know the pin information of the component without looking at the circuit diagram. As a result, the work can be performed efficiently.

Next, the operation of the printed circuit board wiring design system will be described. 3 and 4 are screen image diagrams showing an example of component pin display in the display processing operation of FIG.
In the printed circuit board wiring design system, first, as shown in FIG. 3, in an initial state, a component 41 and a component 42 are displayed on a CAD screen 31 in a window format. Is displayed in. In addition, as shown in FIG.
When the display is switched by selecting the component 41) shown in FIG. 4, the input display pin 52 is displayed in the preset color of the input pin, and the output display pin 53 is displayed in the preset output pin color. Is displayed.

Next, a method of displaying printed circuit board wiring according to the present embodiment will be described. FIG. 2 is a flowchart showing the operation of the printed circuit board wiring display method of FIG. First, as shown in FIG. 3, the display device 2 displays a component 41 and a component 42 based on the component information of the printed circuit board stored in the storage device 4. All the component pins 51 are displayed in a normal color.

Subsequently, an instruction to select arbitrary components 41 and 42 is input to the component selection means 11 via the input device 3 (step S21). Here, as shown in FIG.
The description proceeds assuming that 1 has been selected. When an instruction to select the component 41 is input to the component selection unit 11 via the input device 3 (step S21), the data reading unit 12 reads the pin information of the target component 41 from the storage device 4 in response to the instruction (step S22). In response to this, as shown in FIG. 4, the display control means 13 sets the component to the input display pin 52 having the preset input pin color among the component pins 51 of the target component 41. The display of the pin 51 is switched, and the display of the component pin of the target component 41 is switched to the output display pin 53 having the preset output pin color among the component pins 51 (step S23).

As described above, according to the present embodiment, the following effects can be obtained. The first effect is CA
Window-type CA without D operator looking at circuit diagram
As a result of being able to know the pin information of the components 41 and 42 on the D screen 31, it is possible to efficiently perform printed circuit board wiring design. The second effect is that when wiring a signal having a one-stroke wiring condition,
This is to easily determine which component pin of the plurality of connection pins is the output pin. A third effect is that the wiring conditions such as the wiring length and branch length of the clock signal output from the high-speed operation component are determined and the output pins can be easily determined, thereby realizing an efficient printed circuit board wiring design. Is to be able to do it. And the fourth
The effect of (1) is that the wiring conditions for balanced transmission of the signals output from the differential operation parts are determined and the output pins can be easily determined, so that efficient printed circuit board wiring design can be realized. .

It should be noted that the present invention is not limited to the above embodiments, and each embodiment can be appropriately modified within the scope of the technical idea of the present invention. Further, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment,
The number, position, shape, and the like suitable for carrying out the present invention can be obtained. In each drawing, the same components are denoted by the same reference numerals.

[0012]

Since the present invention is configured as described above, the following effects can be obtained. The first effect is that C
Window-type C without AD worker looking at circuit diagram
As a result of being able to know the pin information of the component on the AD screen, it is possible to efficiently design the printed circuit board wiring.

A second effect is that when wiring a signal having a one-stroke wiring condition, it is possible to easily determine which component pin among a plurality of connection pins is an output pin. .

A third effect is that a clock signal output from a high-speed operation component has wiring conditions such as a wiring length and a branch length which are determined and output pins can be easily determined.
This is to realize efficient printed circuit board wiring design.

A fourth effect is that the wiring conditions for balanced transmission of the signals output from the differential operation components are determined and the output pins can be easily determined, so that an efficient printed circuit board wiring design can be realized. It is to become.

[Brief description of the drawings]

FIG. 1 is a functional block diagram for explaining a printed circuit board wiring design system according to one embodiment of the present invention.

FIG. 2 is a flowchart showing an operation (printed circuit board wiring display method) of the printed circuit board wiring design system of FIG. 1;

FIG. 3 is a screen image diagram showing an example of component pin display in the display processing operation of FIG. 2;

FIG. 4 is a screen image diagram showing an example of component pin display in the display processing operation of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Display processing device 2 ... Display device 3 ... Input device 4 ... Storage device 11 ... Component selection means 12 ... Data readout means 13 ... Display control means 31 ... CAD screen 41 of window format 41, 42 ... Component 51 ... Component pin 52 ... Input display pin 53 ... Output display pin

Claims (8)

[Claims] 1. A printed circuit board wiring design system for displaying input pins and output pins of a component by changing colors, a display processing device having a function of displaying input pins and output pins of a component by changing colors, and a printed circuit board. A display device having a function of displaying component pins in a predetermined color, an input device having a function of inputting an instruction to select an arbitrary component, and a storage device having a function of storing component information of a printed circuit board. Features printed circuit board wiring design system. 2. A display processing apparatus comprising: a component selection unit having a function of selecting an arbitrary component; a data reading unit having a function of reading pin information of a target component from the storage device; an input pin and an output of the target component 2. The printed circuit board wiring design system according to claim 1, further comprising display control means having a function of displaying pins in different display colors. 3. In an initial state, all component pins are displayed in a normal color on the display device based on the component information of the printed circuit board stored in the storage device. According to the selection, the data reading means reads the pin information of the target component from the storage device, and the display control means is configured to display the input pin and the output pin of the target component in different display colors. The printed circuit board wiring design system according to claim 2. 4. In an initial state, a window type C
When all the component pins for the component displayed in the AD screen are displayed in the normal color, and the display is switched by selecting an arbitrary component, the input of the selected component is performed using the preset input pin color. 4. The printed circuit board wiring according to claim 2, wherein the display pins are displayed, and the output display pins of the selected component are displayed in a preset output pin color. Design system. 5. A printed circuit board wiring display method for displaying input pins and output pins of a component by changing colors, a display processing step having a function of displaying input pins and output pins of a component by changing colors, and a printed circuit board. A display step having a function of displaying component pins in a predetermined color, an input step having a function of inputting an instruction to select an arbitrary component, and a storage step having a function of storing component information of a printed circuit board. Characteristic printed circuit board wiring display method. 6. The display processing step includes: a part selecting step having a function of selecting an arbitrary part; a data reading step having a function of reading pin information of the target part from the storage step; an input pin and an output of the target part 6. The printed circuit board wiring display method according to claim 5, further comprising: a display control step having a function of displaying pins in different display colors. 7. In an initial state, a step of displaying all component pins in a normal color based on component information of a printed circuit board stored in the storage step, and selecting an arbitrary component in the component selection step. Accordingly, the data readout step reads out pin information of the target component from the storage step, and the display control step includes a step of displaying input pins and output pins of the target component in different display colors. Item 7. The printed circuit board wiring display method according to Item 6. 8. In an initial state, a window type C
A step of displaying all the component pins for the component displayed in the AD screen in a normal color, and, when an arbitrary component is selected and the display is switched, the selected component is displayed in a preset input pin color. Displaying the input display pin of the selected component and displaying the output display pin of the selected component in a preset color of the output pin. Display method.