Searching method for single-terminal network

Abstract

The invention provides a searching method for a single-terminal network. In the method, a schematic network output by candence and a PCB (Printed Circuit Board) network are settled and compared in a manner of using a software plug-in unit so as to find out the difference between the two networks, thus the single-terminal network in the schematic network can be searched, wherein the plug-in unit is realized by a third party language, namely the perl language; aiming at three conditions of generating the single-terminal network, the three conditions have a common feature that the single-terminal network is not in the schematic network while the schematic network is exported, but in the network exported from a corresponding PCB, with the existence of specific pins, the single-terminal network can be in a PCB network list, so, the troubled single-terminal network can be searched out by comparing the two network lists, and in specific implementation, a scripting language perl is used for realization.

Description

technical field [0001] The invention relates to an electronic circuit design technology, specifically a search method for a single-ended network. Background technique [0002] At present, for the electronic circuit design industry, the schematic diagram is generally designed first, and then the schematic diagram is imported into the PCB board for design. Lower-level but less-detectable errors are prone to occur at various stages, such as the problem solved by this invention-single-ended network. [0003] The following describes the three situations in which a single-ended network appears for cadence: [0004] 1) In the process of drawing the schematic diagram, the network line should be drawn out from the pins of the device. This pin is represented by a line, and the network line is also represented by a line. The two are connected in the process of connecting It is easy to be misaligned and not connected, so that the device pins that need to be connected exist as single-e...

AI Technical Summary

Problems solved by technology

In this case, there is only a network in the pcb, but this network is not shown in the schematic diagram, and it can also be regarded as a unilateral network. This situation is sometimes required by the design, but it often implies design risks. This is a unilateral network, and such a network can also be found through this invention to ensure correct

[0007] For the network inspection software that comes with candence, it is inconsistent with the usage habits of schematic engineers, and the description is complicated. It takes a lot of time to quickly confirm the problematic network, that is, the usability is poor, so this software is developed to quickly locate single-ended network