A method and device for checking electrical connection between analog ground and digital ground

An electrical connection, analog ground technology, applied in electrical digital data processing, CAD circuit design, special data processing applications, etc., can solve the problems of time-consuming and laborious, missed inspection, poor anti-interference ability of the board, and speed up the inspection. , to ensure correctness and improve work efficiency

Active Publication Date: 2022-02-18
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the schematic design is completed, it is necessary to conduct a large-scale inspection one by one to see if there are any connections between the above-mentioned electronic components between all analog grounds and digital grounds. Since a single schematic design page number may be as high as hundreds of pages, the analog ground and digital ground There is no regularity in the distribution of the distribution. It is not only time-consuming and labor-intensive to check simply by human eyes, but also it is easy to miss the inspection. Furthermore, if there is no connection between some analog grounds and digital grounds, they cannot be checked out and corrected in time. It will lead to poor anti-interference ability of the whole board

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and device for checking electrical connection between analog ground and digital ground
  • A method and device for checking electrical connection between analog ground and digital ground
  • A method and device for checking electrical connection between analog ground and digital ground

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] like figure 1 As shown, a method of checking the electrical connection of analog ground and digital ground includes the following steps:

[0031] S1. Obtain the symbols of all pins connected to the analog ground AGND;

[0032] S2. Determine whether the component attribute of the symbol is a zero-ohm resistor R or a magnetic bead FB, and determine whether another pin of the component is ground GND.

Embodiment 2

[0034] like figure 2 As shown, the method of checking the electrical connection of analog ground and digital ground includes the following steps:

[0035] S11. Obtain the ID number of the net containing AGND named in the PCB in the database, and read the actual complete net name corresponding to each ID;

[0036] S12. For each net, search for all the pins connected to the net in the PCB, and then obtain the symbol corresponding to each pin.

[0037] S13. Determine whether the component property of the symbol is a zero-ohm resistor R or a magnetic bead FB. If yes, then determine whether the net property of another pin of the symbol is GND. If so, then determine whether there is a connection between the AGND and GND. The zero-ohm resistor R or the magnetic beads FB are connected; if not, it is judged that the AGND is not connected to the GND.

Embodiment 3

[0039] like image 3 As shown, the method of checking the electrical connection of analog ground and digital ground includes the following steps:

[0040] S21, establish the skill file named gnd.il;

[0041] S22. Use the skill command to select all database ID_lists whose net name is "*AGND";

[0042] S23. Select ID[p] and read the complete netname of its corresponding AGND;

[0043] S24. Find all pin_list[n] connected to the net;

[0044] S25. Select a pin_list[i], read its corresponding symbol, and determine whether the component attribute of the symbol is a zero-ohm resistor R or a magnetic bead FB;

[0045] S26, read whether the net attribute connected to another pin of the component is "GND"; if yes, enter step S27, if no, judge whether i is equal to n, if yes, then enter step S28, if no, i =i+1, proceed to step S25;

[0046] S27, print out the complete net name of "AGND" and the symbol name connected to GND;

[0047] S28. Print out the complete net name of "AGND", ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for checking the electrical connection between the analog ground and the digital ground, comprising the following steps: obtaining symbols of all pins connected to the analog ground AGND; judging whether the component properties of the symbol are zero-ohm resistance R or magnetic beads FB , to determine whether the other pin of the component is ground GND. Also disclosed is a device for checking electrical connections between analog ground and digital ground. It can automatically check whether there is an electrical connection between the analog ground and the digital ground in the PCB, and the way of the electrical connection, and print the error report, avoiding the situation of relying on human eyes to miss the inspection, and greatly speeding up the inspection speed, which is convenient and fast progress, ensure correctness, and improve the work efficiency of electrical inspection.

Description

technical field [0001] The invention relates to the technical field of electrical inspection, in particular to a method and a device for checking the electrical connection of analog ground and digital ground based on Cadence Allegro software secondary development skill language. Background technique [0002] In the circuit design process of the schematic diagram, it often includes two parts: digital circuit and analog circuit. Analog circuits involve weak and small signals, but digital circuits have a higher threshold level, and the requirements for power supply are lower than analog circuits. In a system with both digital circuits and analog circuits, the noise generated by the digital circuit will affect the analog circuit and make the small signal index of the analog circuit worse. The way to overcome it is to separate the analog ground AGND and the digital ground GND. There are usually two ways to separate the analog ground from the digital ground: 1. Connect with a mag...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/398G06F115/12
CPCG06F30/398
Inventor 宋丽青
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap