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Method and system for counting link loss of backboard system

A link loss and backplane technology, applied in computing, computer-aided design, CAD circuit design, etc., can solve problems such as inflexible design, inability to obtain chip signal channel loss, connector channel loss, and inability to achieve board-card association. , to achieve the effect of comprehensively obtaining and comprehensive backplane system link loss

Active Publication Date: 2020-05-26
FENGHUO COMM SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing method is to associate the relationship between the backplane and the board through the definition of the net name, which is inflexible in design and cannot realize arbitrary board association; and when calculating the link loss of the backplane system, only the length of the PCB trace can be extracted, and the length of the PCB cannot be obtained. Chip signal channel loss and connector channel loss cannot quickly, accurately and comprehensively count link loss, which can no longer meet the current design requirements for large-capacity and ultra-high-speed backplanes

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  • Method and system for counting link loss of backboard system
  • Method and system for counting link loss of backboard system
  • Method and system for counting link loss of backboard system

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Embodiment Construction

[0050] Embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0051] An embodiment of the present invention provides a method for counting link loss of a backplane system, including the following steps:

[0052]Define all the slot information in the backplane schematic diagram, import the board PCB design file and the backplane schematic diagram, read the coordinates of the connectors in all slots on the backplane, and judge the insertion direction of the board in each slot;

[0053] Combining the board insertion direction of each slot, match the coordinates of the board connector and the coordinates of the backplane connector to obtain the mapping relationship between the board connector and the backplane connector;

[0054] Read the PIN pin coordinates of the backplane connector and the PIN pin coordinates of the board connector, and obtain the PIN pin mapping relationship between the backplane connecto...

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Abstract

The invention discloses a method and a system for counting link loss of a backboard system and relates to the technical field of electronic communication. The method comprises the following steps: reading coordinates of connectors of all slots of a backboard, judging board card insertion directions of the slots, and matching the coordinates of a board card connector with the coordinates of a backboard connector to obtain a mapping relationship between the board card connector and the backboard connector and a PIN mapping relationship between the backboard connector and the board card connector; calculating the link loss of the backboard system according to the PIN mapping relation, and analyzing whether the link loss meets the requirements or not. When the link loss of the backboard systemis calculated, the link loss of the backboard system is accurately and comprehensively obtained by combining the loss of the board card chip, the loss of the board card connector and the loss of theboard card PCB.

Description

technical field [0001] The invention relates to the technical field of electronic communication, in particular to a method and system for counting link loss of a backplane system. Background technique [0002] With the development of communication technology, the system rate of communication equipment has been continuously improved, and the rate of a single serdes channel has developed from 3.125Gbps, 10Gbps to 25Gbps, 56Gbps or even 112Gbps. As the rate increases, the transmission loss of the signal on the PCB increases, that is, the same link length, the higher the rate, the greater the loss. In order to ensure signal integrity, it is necessary to make statistics on the system link loss value to determine whether the system requirements are met. Therefore, in the feasibility analysis of the backplane system and the design of the high-speed backplane PCB, it is necessary to count the system link loss. [0003] The existing method is to associate the relationship between t...

Claims

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Application Information

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IPC IPC(8): G06F30/398G06F115/12
Inventor 姜文李军华
Owner FENGHUO COMM SCI & TECH CO LTD