System for auxiliary laying signal wire and method thereof

Abstract

A system and method for assisting the laying of cable is provided, which is characterized in that: a safe distance between signal cables is preset in a cable laying software; a signal cable to be laid is positioned in an initial pin in a pin area via an initial pin setting module; a minimal cable distance between the signal cables laid in the pin area and a maximal length of the signal cable laid in the minimal cable distance are set via a cable laying rules setting module in the pin area, so that a cable laying software is able to lay the signal cable within the minimal cable distance from the initial pin; if the length of the signal cable laid by the cable laying software from the initial pin of the pin area via a monitor module exceeds the designated one, the cable laying software will continue to lay the signal cable according to the preset safe distance between the signal cables, so as to eliminate the ignorable DRC resulted from little distance between pins in the pin area.

Description

technical field [0001] The present invention relates to a system and method for assisting in laying out signal lines, more specifically, relates to a system and method loaded in a wiring software to assist the wiring software in routing signal lines when designing a circuit board. method. Background technique [0002] Currently, the layout of printed circuit boards (PCBs) is usually performed automatically by various software programs (such as Protel software). Among them, before wiring, the wiring engineer generally needs to set the line width and line spacing for the important lines to be wired (such as signal lines and power lines, etc.), so that the signal can be transmitted more effectively, and can meet the requirements such as impedance or Timing and other specifications, and after the wiring is completed through the software program, a design rule check (DRC, Design Rule Check) needs to be performed on the wiring result to check that the lines laid out comply with t...

AI Technical Summary

Problems solved by technology

In the same way, because the restricted area runs through all layout levels of the circuit board from top to bottom, it also hides the DRCs of signal lines that affect line signal transmission and must be modified in other layout levels (that is, non-negligible DRCs) Mislabeling, restricting the modification work of wiring engineers, will also lead to poor line signals and degradation of circuit board quality

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