CN101673309A - Method for correcting wiring error - Google Patents

Abstract

The invention discloses a method for correcting wiring errors in a printed circuit layout, which comprises the following steps. First, wiring data of a first network line where an erroneous wiring occurs in a printed circuit layout is acquired. And then, according to the corresponding connection relation between the first network wire and the welding pad in the circuit schematic diagram, correcting the name of the first network wire in the wiring data. Finally, the corrected wiring data is loaded into the printed circuit layout. Therefore, the net wires with wiring errors can be corrected and connected to the correct welding pads.

Description

How to fix wiring errors

technical field

The invention relates to a wiring technology, in particular to a method for correcting wiring errors in a printed circuit layout diagram.

Background technique

Generally speaking, layout engineers will use computer-aided design software to carry out circuit layout according to the circuit schematic diagram (schematic) provided by Electronic Engineer (EE). After the layout is completed, the completed printed circuit layout diagram is handed over to the electronic engineer for debugging or circuit inspection. After debugging or circuit inspection, electronic engineers will redesign or partially modify the circuit schematic diagram or partially modify the printed circuit diagram according to their needs or when an error occurs. When the computer-aided design software loads the modified circuit schematic diagram or printed circuit diagram, it will rename all the network cables according to its wiring naming rules. Therefore, after the names of some network cables are changed, they are connected to wrong pads, so that they cannot be physically connected to the corresponding pads in the form of wires on the printed circuit diagram.

Since the connection relationship between the network cable and the pad corresponding to the printed circuit diagram (including whether the connection relationship is correct or incorrect) cannot be directly modified on the diagram, if the wiring is directly modified with the old network cable, the network cable may still not be connected to the correct one. solder pads. Therefore, the current method can only delete the wrong network cable, and then rewire along the original trace of the network cable. When rewiring, if the space between the wiring is not enough, and the wiring cannot be pushed through the intelligent wiring configuration assistant environment (ADE), it will make the wiring on the printed circuit diagram more difficult.

Contents of the invention

The invention provides a method for correcting wiring errors in a printed circuit layout diagram, by correcting the name of the net line so that the net line is connected to the correct pad.

The invention proposes a method for correcting wiring errors in a printed circuit layout, and the correction method includes the following steps. Firstly, the wiring data of the first network cable in the printed circuit layout diagram that has a wrong wiring is obtained, wherein the wrong wiring occurs because the network cable in the printed circuit layout diagram cannot be connected to its corresponding pad by a wire. Then, according to the corresponding connection relationship between the first network cable and the welding pad in the schematic circuit diagram, the name of the first network cable in the wiring data is corrected. Finally, load the corrected wiring data into the printed circuit layout diagram.

In an embodiment of the present invention, the step of correcting the name of the first network wire in the wiring data includes: obtaining the name of the pad corresponding to the connection of the first network wire in the circuit schematic diagram, and obtaining the name of the pad according to the name of the pad. The name of the second network cable connected correspondingly in the printed circuit layout diagram, and the name of the first network cable is corrected to the name of the second network cable.

In an embodiment of the present invention, the correction method further includes changing the name of the second network cable to the name of the first network cable before correction.

In an embodiment of the present invention, the correction method further includes redrawing the printed circuit diagram according to the revised wiring data.

In one embodiment of the present invention, the wiring data is output by computer-aided design software for drawing the layout diagram of the printed circuit.

In an embodiment of the present invention, the wiring data is a text file.

In the method for correcting wiring errors in the printed circuit layout diagram of the present invention, the name of the first network cable with wiring errors is corrected according to the corresponding connection relationship between the first network cable and the pad in the circuit schematic diagram, so that the first network cable can be printed. Connect to the correct pad in the circuit diagram.

The above description is only an overview of the technical solutions of the present invention. In order to understand the technical means of the present invention more clearly and implement them according to the contents of the description, the preferred embodiments of the present invention and accompanying drawings are described in detail below.

Description of drawings

FIG. 1 is a flowchart of a correction method according to an embodiment of the present invention.

FIG. 2 is a flow chart of a correction method according to another embodiment of the present invention.

FIG. 3 is a schematic diagram of wrong wiring according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of wiring data of a network cable according to an embodiment of the present invention.

FIG. 5 is a schematic diagram of wiring data of another network cable according to an embodiment of the present invention.

FIG. 6 is a schematic diagram of correct wiring according to an embodiment of the present invention.

The symbols of the components in the figure are explained as follows:

S101-S103: the steps of the correction method in an embodiment of the present invention

S201-S207: the steps of the correction method in another embodiment of the present invention

P1, P2: pads

300, 600: Printed circuit layout diagram

301, 302: network cable

400, 500: wiring information

410, 510: Network cable name

Detailed ways

After the electronic engineer corrects the circuit schematic diagram or the printed circuit layout diagram, the name of the network cable in the printed circuit layout diagram will be changed. If the connection relationship is not corrected at the same time, the wiring error of the network cable will be caused. Therefore, the present invention provides a Correction method for wiring errors. The features and effects of the method for correcting wiring errors in printed circuit layout diagrams according to the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

FIG. 1 is a flowchart of a correction method according to an embodiment of the present invention. Please refer to FIG. 1 , first step S101, the wiring data of the first net line in the printed circuit layout diagram that has an incorrect wiring will be obtained first, where the wrong wiring occurs, for example, the first net line in the printed circuit layout diagram cannot be connected to its corresponding wire. pads. Next, as shown in step S102 , the name of the first network cable in the wiring data is corrected according to the corresponding connection relationship between the first network cable and the pad in the schematic circuit diagram. Finally, step S103 loads the corrected wiring data into the printed circuit layout diagram. Therefore, by correcting the name of the first network cable, the wrongly routed first network cable can be corrected and connected to the correct pad. Wherein, the wiring data may be output by computer-aided design software for drawing the printed circuit layout, and the wiring data is, for example, a text file.

For example, at the beginning, the correction method will first detect which network cable is the wrong wiring in the printed circuit layout diagram, and then the computer-aided design software will output the wiring data of the network cable containing the wrong wiring to obtain the network cable (hereinafter referred to as the first One network cable) wiring information. After obtaining the wiring data, it is detected which bonding pad the first network line is connected to in the circuit schematic diagram. After confirming, go back to checking which net line (here, take the second net line as an example) that the pad is connected to in the printed circuit layout diagram. Finally, in the wiring data, the name of the above-mentioned wrong first network cable is corrected to the name of the second network cable, and the corrected wiring data is returned to the computer-aided design software to be loaded back into the printed circuit layout diagram. So far, after the wiring of the first network cable in the printed circuit layout diagram is corrected, it will be the same as the circuit schematic diagram.

In order to enable those skilled in the art to better understand the content of the present invention, another embodiment is provided below for a more detailed description. FIG. 2 is a flow chart of a correction method according to another embodiment of the present invention. Please refer to FIG. 2 , first step S201 also obtains the wiring data of the first net line in the printed circuit layout diagram that is wrongly wired. Next, as shown in step S202 , the name of the pad corresponding to the connection of the first network cable in the schematic circuit diagram is obtained. In step S203 , according to the name of the pad, the name of the second network cable connected to the pad in the printed circuit layout diagram is obtained. Then, in step S204, the name of the first network cable is corrected to the name of the second network cable. Moreover, in step S205, the name of the second network cable is changed to the name of the first network cable before modification. For example, the names of the first network cable and the second network cable are /FB_DA_C(48) and /FB_DA_C(50); after completing steps S204 and S205, the name of the first network cable is changed to /FB_DA_C(50), and the is changed to /FB_DA_C(48). Next, in step S206, the corrected wiring data is also loaded into the printed circuit layout diagram. Finally, as shown in step S207, the printed circuit layout diagram is redrawn according to the revised wiring data.

For example, FIG. 3 is a schematic diagram of wrong wiring according to an embodiment of the present invention. In this embodiment, the network wire 301 in the printed circuit layout diagram 300 is connected to the pad P1, while in the schematic circuit diagram (not shown), the network wire 301 is connected to the pad P2 (that is, the network wire 301 is connected to the solder pad P2 correspondingly). Pad P2 name). At this time, the mesh wire 301 in the printed circuit layout diagram 300 should be connected to the pad P2, but is connected to the pad P1. The wrong connection relationship of the network cable 301 and the tight layout on the printed circuit layout diagram 300 will cause the network cable 301 to be connected to the pad P1 only as a guide line, but cannot be connected to the pad P1 in the form of a wire (that is, the connection of the network cable 301 ). wiring error). According to the above, the network cable 301 is originally intended to be connected to the pad P2 in the printed circuit layout diagram 300, but after being modified by the electronic engineer, the name of the network cable 301 is changed, so that the solder pad P2 in the printed circuit diagram 300 is correspondingly connected to the network cable 302 . In order to modify the network cable 301 to be connected to the pad P2 again, the name of the network cable 301 must be changed to the name of the network cable 302 so that the pad P2 is reconnected to the network cable 301 by the name of the network cable 302 .

According to the above, at the beginning of the correction method of this embodiment, the wiring data of the network cable 301 must be obtained first, wherein the wiring data can be obtained by outputting the computer-aided design software for drawing the printed circuit diagram 300 . The wiring data of the network cable 301 can be shown in FIG. 4 , which is a schematic diagram of the wiring data of the network cable according to an embodiment of the present invention. Referring to FIG. 4 , the wiring data 400 includes a network cable name 410 and other data related to wiring. From the network cable name 410 , it can be known that the name of the network cable 301 is “/FB_DA_C(48)”. Next, it can be known from the connection relationship shown in FIG. 3 that the network cable 301 is correspondingly connected to the pad P2 in the schematic circuit diagram (not shown), so that the name of the network cable 301 correspondingly connected to the pad P2 can be obtained. Then, according to the name of the pad P2 and its connection relationship in the printed circuit layout 300, it can be known that the pad P2 will be connected to the network cable 302 in the printed circuit layout 300, so that the name of the network cable 302 can be obtained (assuming for /FB DA C(50)). Then, "/FB_DA_C(48)" in the network cable name 410 of the wiring data 400 is corrected to the name "/FB_DA_C(50)" of the network cable 302, so that the name of the network cable 301 is changed to the name of the network cable 302.

However, before the modification, the wiring data of the network cable 302 must be obtained first to know the name of the network cable, wherein the wiring data of the network cable 302 can be obtained at the same time as the wiring data of the network cable 301 . The wiring data of the network cable 302 can be shown in FIG. 5 , which is a schematic diagram of wiring data of another network cable according to an embodiment of the present invention. Referring to FIG. 5 , the wiring data 500 includes a network cable name 510 and other data related to wiring, so it can be known that the name of the network cable 302 is “/FB_DA_C(50)”. After the name of the network cable 302 is acquired, the name of the network cable 410 is modified to the name of the network cable 302 “/FB_DA_C(50)”. Then, the revised wiring data 400 is loaded into the printed circuit layout diagram 300 to modify the connection relationship of the network wires 301 . And, the printed circuit layout diagram 300 is redrawn according to the revised wiring data.

It is worth mentioning that after the above correction, the network cable name "/FB_DA_C(50)" will correspond to the network cable 301 and 302 at the same time, so after the network cable name 410 is corrected, the network cable name 510 will be changed to the network cable 301. The previous name “/FB_DA_C(48)” is used to change the name of the network cable 302 to the name of the network cable 301 before modification, so that the pad P2 will not be connected to the network cable 302 after modification. The revised and redrawn printed circuit diagram is shown in FIG. 6 , which is a schematic diagram of correct wiring according to an embodiment of the present invention. Referring to FIG. 6 , after correcting the names of the wires 301 and 302 , the wire 301 in the printed circuit layout diagram 600 is correctly connected to the pad P2 , and the wire 302 is connected to the pad P1 instead of the pad P2 . In this way, the incorrectly routed network cable can be connected to the correct pad, and the same network cable name will not be corresponding to multiple network cables at the same time.

To sum up, the wiring error correction method of the embodiment of the present invention, according to the corresponding connection relationship between the network cable and the welding pad in the circuit schematic diagram, detects the wiring error network cable and the corresponding connection pad of the circuit schematic diagram, and then detects the welding pad. Pad in the printed circuit to correspond to the name of another network cable connected, and finally correct the name of the wiring error network cable as the name of another network cable, so that after the wiring error network cable can be corrected, it is connected to the correct pad in the printed circuit diagram.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, may use the structure and technical content disclosed above to make some changes or modifications to equivalent embodiments with equivalent changes, but any content that does not depart from the technical solution of the present invention, Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention still fall within the scope of the technical solutions of the present invention.

Claims (6)

1, the modification method of wiring error in a kind of printed circuit layout is characterized in that described modification method comprises:

Obtain the wiring data that produces first netting twine of misroute in the printed circuit layout, wherein produce misroute and can't be connected to its corresponding pad with lead for the netting twine in this printed circuit layout;

According to the corresponding annexation of this first netting twine in the circuit theory diagrams, revise the title of this first netting twine in this wiring data with weld pad; And

Load revised this wiring data to described printed circuit layout.

2, modification method according to claim 1 is characterized in that the step of revising the title of this first netting twine in this wiring data comprises:

Obtain this first netting twine in these circuit theory diagrams corresponding this weld pad title that connects;

According to this weld pad title, obtain this weld pad in this printed circuit layout the title of corresponding second netting twine that connects; And

Revise the title of this first network cable names for this second netting twine.

3, modification method according to claim 2 is characterized in that described modification method more comprises:

Change this second network cable names and be the title of this first netting twine before revising.

4, modification method according to claim 1 is characterized in that described modification method more comprises:

Redraw this printed circuit layout according to revised this wiring data.

5, modification method according to claim 1 is characterized in that described wiring data is exported by the computer aided design software of this printed circuit layout of drafting.

6, modification method according to claim 5 is characterized in that described wiring data is a text file.

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