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Method for automatically checking line width of high speed line

An automatic inspection and high-speed line technology, applied in special data processing applications, instruments, electrical digital data processing, etc., to avoid redundant workload and improve design speed and quality

Inactive Publication Date: 2016-11-16
INSPUR GROUP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical task of the present invention is to provide a method for automatically checking the line width of high-speed lines to solve the problem of how to quickly check whether the line width of high-speed lines meets the constraints.

Method used

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  • Method for automatically checking line width of high speed line

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Embodiment 1

[0022] A method for automatically checking the line width of a high-speed line of the present invention is a method for automatically checking whether the line width of a high-speed line meets the constraint conditions, and the steps are as follows:

[0023] (1) Enter the line width attribute of each pair of high-speed differential lines (Differential Pair) in the constraints (Constraints) of the PCB;

[0024] (2) Carry out comparative detection of the line widths one by one according to the order of the high-speed differential lines in the constraints.

[0025] The specific operation of step (2) is:

[0026] ①. Gradually detect the line width of each pair of high-speed differential lines, and gradually detect whether the line width information of each pair of high-speed differential lines is consistent with the previously entered line width information;

[0027] ② When the detection value is 1, it means that the line width information of this pair of high-speed differential ...

Embodiment 2

[0032] A method for automatically checking the line width of a high-speed line of the present invention is a method for automatically checking whether the line width of a high-speed line meets the constraint conditions, and the steps are as follows:

[0033] (1) Enter the line width attribute of each pair of high-speed differential lines (Differential Pair) in the constraints (Constraints) of the PCB;

[0034] (2) Carry out comparative detection of the line widths one by one according to the order of the high-speed differential lines in the constraints.

[0035] When designing the PCB, enable the command, through the logical XOR operation, that is, when the line width information of the high-speed differential line in the PCB is detected to be consistent with the line width information entered before, it is 1; the line width of the high-speed differential line in the PCB is detected When the information is inconsistent with the previously entered line width information, it is ...

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Abstract

The invention discloses a method for automatically checking the line width of a high speed line, and belongs to the technical field of PCB design. The method can solve the problem how to quickly check whether or not the line width of a high speed line meets constraints. The method for automatically checking whether the line width of the high speed line meets the constraints or not includes the following steps: (1), performing line width attribute input on each pair of high speed differential lines in the constraints of a PCB; and (2), performing comparison detection on line width one by one according to a sequence of the high speed differential lines in the constrains; starting a command during PCB design to perform logic exclusive or xor operation, i.e., the xor result is 1 when the detected line width information of the high speed differential lines in the PCB is consistent with the input line width information, and the xor result is 0 when the detected line width information of the high speed differential lines in the PCB is not consistent with the input line width information; and continuously executing the command after names of the high speed differential lines which cannot meet the constraints correctly pop up in a window to be operated till all the high speed differential lines are detected.

Description

technical field [0001] The invention relates to the technical field of PCB design, in particular to a method for automatically checking the line width of high-speed lines. Background technique [0002] With the continuous development of electronic information technology, the integration of electronic products is getting higher and higher. As the transmission link of various functions, high-speed lines occupy a higher position in PCB design. How to design with high speed and high quality has also become an issue that layout engineers are more and more concerned about. [0003] At present, whether the line width of high-speed lines meets the constraints (Constraints) is manually calculated and a lot of design time is wasted. Contents of the invention [0004] The technical task of the present invention is to provide a method for automatically checking the line width of high-speed lines to solve the problem of how to quickly check whether the line width of high-speed lines m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/392G06F30/398
Inventor 刘金凤张得文翟西斌
Owner INSPUR GROUP CO LTD