CN108829968A - Circuit diagram checking method based on Python spread function - Google Patents

Abstract

The invention discloses a circuit diagram inspection method based on Python extension functions, which mainly solves the problems that the prior art relies on EDA tools and cannot perform various inspections in the inspection process. The implementation steps are: analyze the data according to the EDIF file of the circuit diagram exported by the EDA tool, and establish a public data structure containing all the information of the circuit diagram to be reviewed; according to the built public data structure, write the instance acquisition class, attribute traversal class and intelligent review report class. Three types of extension functions; determine the review requirements, select a review script that meets the review requirements from the rule database; if there is no review script that can meet the review requirements in the rule database, write the review script according to the three types of extension functions generated above; according to the review script Perform mission reviews to obtain review reports. The invention can run independently without EDA tools, quickly perform multiple inspections of complex circuit diagrams, and can be used for electronic circuit design.

Description

Circuit Diagram Review Method Based on Python Extension Function

technical field

The invention belongs to the technical field of electronic design automation, and further relates to a method for examining circuit diagrams, which can be used to detect and correct circuit schematic diagrams generated by electronic design automation EDA tools.

Background technique

With the development of computer science and electronic science, the use of many function-rich electronic design automation EDA tools has greatly improved the design efficiency of electronic systems. However, in order to obtain a design that achieves the design goals and has good stability, design verification is an indispensable and important link. Although many EDA tools have integrated design verification tools, in the context of gradually shortening product design cycles and increasing design complexity, the design verification tools that come with EDA tools cannot well meet the needs of engineers.

At present, the design verification methods provided by mainstream EDA tools on the market mainly have the following problems in the process of use:

1) Due to the wide variety of EDA tools, and there is no good compatibility between the EDA tools, this requires users to use different EDA tools for different EDA designs, which not only increases the workload of engineers, but also increases the Difficulty of collaborative design.

2) The design verification function of current EDA tools does not have good scalability. Engineers may have different review requirements at any time during the design process, and current tools often cannot meet these requirements.

3) At present, EDA tools cannot inherit excellent design experience well. In some large design teams and enterprises, there are often many successful internal design experiences to guide the subsequent design and verification work, but the current tools are difficult to meet this demand.

For the above problems, there are mainly two existing solutions: 1. If the design team and the enterprise use multiple EDA tools, they will develop corresponding design verification tools according to each EDA tool; 2. Develop for one EDA tool Develop the corresponding design verification tool, then convert the data of other EDA tools into the data recognizable by the EDA tool, and then use the developed design verification tool to work in its environment.

However, both solutions have the following disadvantages.

The first solution is high in complexity. For this complexity, users must not only use three EDA tools, but also be familiar with the corresponding design verification tools, which virtually increases the burden on engineers. And there will be the problem of repeated development.

The second solution does not fundamentally solve the compatibility problem between various EDA tools, which limits the scope of use of the tools, and the review and verification process of the program can only be run in the EDA environment, which greatly limits the Flexibility of use.

Contents of the invention

The purpose of the present invention is to overcome the above-mentioned defective of prior art, propose a kind of circuit diagram review method based on Python extension function, to effectively solve the repetitive development problem and reduce the complexity of engineers when performing review tasks, improve the flexibility and efficiency.

The technical idea of the present invention is: by performing data processing on the standard format file EDIF generated by each EDA tool, the designed special data structure is obtained; according to the provided interface function, compile the review script according to the user's demand or directly download the review script from the database; Execute the script to complete the audit and generate an audit report. Its implementation steps include the following:

(1) The user enters the location and name information of the electronic design interchange format EDIF file to be reviewed, and obtains the EDIF circuit diagram file to be reviewed:

(2) Parse the EDIF circuit diagram file:

(2a) traverse the EDIF file in (1), and extract keyword information that meets the requirement in the EDIF file in (1) according to the keyword requirements specified in the EDIF standard;

(2b) According to the keyword information obtained in (2a), according to the grammatical requirements stipulated in the EDIF standard, extract the grammatical information of the EDIF file in (1) that meets the requirements;

(2c) report an error to the keyword information and grammatical information words that do not meet the provisions of the EDIF standard, and terminate the operation;

(3) According to the keyword information and grammatical information obtained in (2), build a public data structure:

(3a) classify the keyword information extracted in (2) according to page, device, pin or network, and fill it into the page, device, pin or network class corresponding to the public data structure;

(3b) According to the grammatical information extracted in (2), first judge the keyword to which the grammatical information belongs, and then fill the grammatical information into the corresponding grammatical segment of the public data structure;

(4) Build three types of Python extension functions:

(4a) According to the information of the page, device, pin and network in the public data structure in (3), construct an instance to obtain the Python-like extension function, and obtain the circuit diagram page, device, pin and network;

(4b) According to the grammatical segment information in the public data structure, build an attribute traversal class Python extension function, and obtain the attribute information of the page, device, pin and network in the circuit diagram;

(4c) According to the review requirements, build an intelligent review report class Python extension function to generate an review report in XML format;

(5) Query the database according to the review requirements to determine whether script writing is required:

(5a) Clarify the review requirements, and check whether there is a review script that can meet the review requirements from the rule database according to the review requirements: if yes, then jump to (6a), otherwise, execute (5b);

(5b) Write scripts according to the three types of Python extensions provided in (4), and upload the written scripts to the server, and turn to step (6b);

(6) Obtain the script for review:

(6a) Download the review script from the rule database according to the review requirements in (5a), perform task review to obtain review reports, and modify the circuit diagram.

(6b) According to the script file uploaded in (5b), conduct a task review to obtain a review report and modify the circuit diagram.

Compared with the prior art, the present invention has the following advantages:

First, the present invention can provide users with a complete set of interface functions for user-defined review rules, which greatly improves the usability and flexibility of the present invention; at the same time, the present invention utilizes computer multi-threading technology to realize multiple Example and multi-script review, using database technology to realize the function of user-defined writing or calling review rules.

Second, because the original input file of the present invention is a standard standard file in EDIF format, rather than the original circuit diagram information in each EDA tool, it can well solve the problem of compatibility between each EDA tool.

The 3rd, the present invention has carried out detailed classification to the Python extension function that provides, for the hardware engineer who is not familiar with programming language, they can complete the writing of a script very easily according to the classification guidance of Python extension function that the present invention provides , greatly reducing the burden on engineers.

Fourth, the present invention not only shields the differences among EDA tools, but also can operate independently from the client, that is, the present invention can realize cloud operation through computer technology and database technology, greatly improving the stability and efficiency of operation.

Fifth, the present invention provides a Python extension function that can generate an intelligent review report in XML format. Through the use of this function, the intelligent management of user review results can be realized, and the results can be presented in front of users more quickly and clearly, which improves the review process. efficiency.

Description of drawings

Fig. 1 is the realization flowchart of the present invention.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings.

With reference to Fig. 1, the specific implementation steps of the present invention are as follows.

Step 1. Obtain the Electronic Design Interchange Format EDIF file to be reviewed.

The electronic design interchange format EDIF file to be reviewed refers to: in each electronic design automation EDA tool, the user determines the circuit diagram file that needs to be reviewed, and for the circuit diagram file, the user generates the EDIF standard text file through the EDA tool.

Step 2. Parse the EDIF circuit diagram file.

(2a) Traverse the EDIF file content input in step 1, according to the keyword information specified in the EDIF standard, extract the keyword information that meets the standard in the EDIF file;

(2b) Extract the grammatical information in the EDIF file according to the grammatical requirements specified in the EDIF standard according to the extracted keyword information, and report an error for the keyword information and grammatical information in the EDIF file that do not meet the EDIF standard Terminate program execution.

Step 3. Get the common data structure.

(3a) Classify the keyword information extracted in step (2a) according to page, device, pin or network, and fill it into the page, device, pin or network class corresponding to the public data structure;

(3b) Determine that the grammatical information extracted in step (2b) belongs to a keyword, and fill the grammatical information into the corresponding grammatical segment of the corresponding keyword in the public data structure.

Step 4. Build three types of Python extension functions:

(4a) According to the information of pages, devices, pins and networks in the public data structure in step (3a), construct an instance to obtain Python-like extension functions. The functions of this class of functions are: obtain circuit diagram pages, devices, pins and networks. This type of Python extension function includes: the function of obtaining circuit diagram device information, the function of obtaining circuit diagram pin information, the function of obtaining circuit diagram network information, the function of obtaining circuit diagram module information, and the function of obtaining circuit diagram paging information;

(4b) According to the grammatical information in the public data structure in step (3b), build an attribute traversal class Python extension function, the function of this class function is: obtain the attribute information of the page, device, pin and network in the circuit diagram, this class Python extension Functions include: traversing circuit diagram device attribute function, traversing circuit diagram pin attribute function, traversing circuit diagram network attribute function;

(4c) According to the review requirements, build an intelligent review report generation class Python extension function. The function of this class of functions is: to generate an review report in XML format; this class of Python extension functions includes: report title generation function and report subject content generation function.

Step 5. Query the rule database according to the review requirements to determine whether scripting is required.

(5a) Build a rule database: store existing review scripts in the rule database, and establish a one-to-one correspondence between review scripts and review requirements;

(5b) Query whether there is a review script that can meet the review requirement from the rule database according to the review requirement: if there is, then jump to (6a), otherwise, execute (5c);

(5c) Write a script according to the three types of Python extension functions provided in (4), and upload the written script to the server, and then go to step (6b).

Step 6. Get the script, review it.

(6a) Download the review script from the rule database according to the review requirements in (5b), perform task review to obtain review reports, and modify the circuit diagram.

(6b) According to the script file uploaded in (5c), conduct a task review to obtain a review report, and modify the circuit diagram.

The above description is only a specific example of the present invention, and does not constitute any limitation to the present invention. Obviously, for those skilled in the art, after understanding the contents and principles of the present invention, it is possible without departing from the principles and structures of the present invention. Various modifications and changes in form and details are made under the circumstances of the present invention, but these modifications and changes based on the idea of the present invention are still within the protection scope of the claims of the present invention.

Claims (6)

1. A method for reviewing circuit diagrams based on Python extension functions, comprising the steps of: (1) The user enters the location and name information of the electronic design interchange format EDIF file to be reviewed, and obtains the EDIF circuit diagram file to be reviewed: (2) Parse the EDIF circuit diagram file: (2a) traverse the EDIF file in (1), and extract keyword information that meets the requirement in the EDIF file in (1) according to the keyword requirements specified in the EDIF standard; (2b) According to the keyword information obtained in (2a), according to the grammatical requirements stipulated in the EDIF standard, extract the grammatical information of the EDIF file in (1) that meets the requirements; (2c) report an error to the keyword information and grammatical information words that do not meet the provisions of the EDIF standard, and terminate the operation; (3) According to the keyword information and grammatical information obtained in (2), build a public data structure: (3a) Classify the keyword information extracted in (2a) according to page, device, pin or network, and fill it into the page, device, pin or network class corresponding to the public data structure; (3b) According to the grammatical information extracted in (2b), first determine the keyword to which the grammatical information belongs, and then fill the grammatical information into the corresponding grammatical segment of the public data structure; (4) Build three types of Python extension functions: (4a) According to the information of the page, device, pin and network in the public data structure in (3), construct an instance to obtain the Python-like extension function, and obtain the circuit diagram page, device, pin and network; (4b) According to the grammatical segment information in the public data structure, build an attribute traversal class Python extension function, and obtain the attribute information of the page, device, pin and network in the circuit diagram; (4c) According to the review requirements, build an intelligent review report class Python extension function to generate an review report in XML format; (5) Query the database according to the review requirements to determine whether script writing is required: (5a) Clarify the review requirements, and check whether there is a review script that can meet the review requirements from the rule database according to the review requirements: if yes, then jump to (6a), otherwise, execute (5b); (5b) Write scripts according to the three categories of Python extension functions provided in (4), upload the written scripts to the server, and turn to step (6b); (6) Obtain the script for review: (6a) Download the review script from the rule database according to the review requirements in (5a), perform task review to obtain review reports, and modify the circuit diagram. (6b) According to the script file uploaded in (5b), conduct a task review to obtain a review report and modify the circuit diagram. 2. The method according to claim 1, characterized in that the EDIF circuit diagram file described in step 1 refers to a standard text file conforming to the Electronic Design Interchange Format EDIF standard output by each EDA tool. 3. The method according to claim 1, characterized in that, the instance acquisition class Python extension function in step (4a) refers to the function of obtaining the basic information of the circuit diagram, including: the function of obtaining the device information of the circuit diagram, and the function of obtaining the pin information of the circuit diagram , obtain the circuit diagram network information function, obtain the circuit diagram module information function, obtain the circuit diagram paging information function. 4. The method according to claim 1, wherein the attribute traversal class Python extension function in step (4b) refers to a function for obtaining circuit diagram attribute information, including: traversing circuit diagram device attribute functions, traversing circuit diagram pin attribute functions , to traverse the network attribute function of the circuit diagram. 5. The method according to claim 1, characterized in that the intelligent review report in step (4c) generates a class Python extension function, which refers to the review report function for generating circuit diagrams, which includes: report title generation function, report subject content generating function. 6. The method according to claim 1, characterized in that the script writing in step (5b) refers to using the three types of extension functions provided in step (4) to write scripts that can realize the review requirements in step (5a) , and conform to the script file of Python syntax.