JP2004234397A - Method for controlling eda library - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an EDA library control method for easily controlling editions in a system LSI where multiple designers are engaged in. <P>SOLUTION: The method comprises: a process for recording the EDA library of a cell acquired based on an LSI retrieval condition and the name of sort of the LSI; a process for inputting the name of sort of the LSI, where the cell acquired when the EDA library is acquired is used; and a process for displaying the EDA library obtained by inputting the name of sort of the LSI, the edition at the time point of usage, and the newest edition, based on the name of sort of the LSI. By the method, the versions of the EDA libraries of the cells which are used for generating the system LSI designed by the multiple designers are collectively compared, so as to prevent a logical examination mistake, etc., in the system LSI, which occurs when the EDA library with the different version is used between different designing processes. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an EDA library management method using an EDA library database managed and released in EDA library units.
[0002]
[Prior art]
Many EDA tools are required to design a system LSI. EDA is an abbreviation of Engineering Design Automation, and is a design automation tool or system for designing a system LSI. The EDA tool is a program implemented on a computer for designing a semiconductor integrated circuit. To use this EDA tool, an EDA library in which functions and timing information are described is required.
[0003]
One system LSI includes a block composed of standard logic cells such as an inverter, a two-input NAND and a flip-flop, a memory block such as an SRAM and a ROM, an analog block such as an A / D converter and a D / A converter, and an input / output part. It consists of I / O blocks and the like. In recent years, system LSIs are designed using function macros (functional blocks) called IP (Intellectual Property) and VC (Virtual Component) such as an MCU core and a DSP core.
[0004]
The EDA library is managed in a database (hereinafter referred to as an EDA library database) for each tool such as a logic simulation and a layout for each cell. When developing an LSI, the EDA library database is used to store necessary cells from the EDA library database. The EDA library for the required tools is obtained.
[0005]
Current system LSIs are becoming larger and more complex, and involve many LSI designers. The team that designs the function of one function macro and the team that designs the function of another function macro may be different. In addition, the team that performs the function design and the team that performs the layout design may be different. In a more complex case, there is a separate team that develops other function macros included in one chip while developing MCU and DSP cores, which are function macros that can be used in common by multiple LSI models. In some cases, another team may work together and integrate them into one chip.
[0006]
In the related art, the EDA library is simply managed for each system LSI type without considering the case where a plurality of teams and a plurality of developments proceed simultaneously (for example, see Patent Document 1).
[0007]
[Patent Document 1]
JP-A-2002-215701 (pages 4-5, FIG. 1)
[0008]
[Problems to be solved by the invention]
However, conventionally, the person in charge is different for each design process, and each person in charge acquires an EDA library. Therefore, who acquires what kind of EDA library on one chip of the system LSI, It was difficult to know whether the EDA library was used. For example, in the logic simulation, there is a problem that the EDA library of the previous version is used, and the EDA library of the layout uses the latest EDA library of a different version.
[0009]
Also, MCU cores and DSP cores, which are function macros that can be commonly used in system LSIs, may be designed by other departments, and the development consistency differs with the EDA library used in the MCU core or DSP core. There was a problem that it was difficult to maintain between departments.
[0010]
Also, when designing the next system LSI by partially modifying or adding functions of the system LSI, it is often the case that the EDA library used in the previous system LSI type is almost used as it is and the EDA library is obtained only for the shortage. . As a result, there is also a problem that the design is advanced without noticing even if the EDA library is updated, and a problem occurs in a subsequent process.
[0011]
It is an object of the present invention to facilitate version management in a system LSI in which many designers intervene in such an EDA library management method.
[0012]
[Means for Solving the Problems]
An EDA library management method according to the present invention is an EDA library management method using an EDA library database managed and released in EDA library units. The EDA library database is searched by an LSI or function macro search condition, and the LSI or function macro is searched. Acquiring an EDA library of a cell used for forming the EDA library, and recording the acquired EDA library, its version, and the type name or function macro name of the LSI in an acquisition history database. A product name or a function macro name is input, the acquisition history database is searched by the input LSI product name or function macro name, and the EDA library used for forming the LSI or the function macro and the time of use are determined. Acquiring the EDA library, searching the EDA library database based on the acquired EDA library information and acquiring the latest version of the current EDA library, and inputting the acquired EDA library, the version at the time of use and the latest version. And a display step based on the LSI product name or the function macro name.
[0013]
According to the present invention, there is provided an EDA library management method capable of facilitating version management in a system LSI involving many designers.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
The invention according to claim 1 of the present invention is an EDA library management method using an EDA library database managed and released in EDA library units. The EDA library database is searched by an LSI or function macro search condition and the LSI is searched for. Or obtaining an EDA library of a cell used for forming a function macro, and recording the obtained EDA library and its version and the type name or function macro name of the LSI in an acquisition history database. The LSI type name or the function macro name at the time is input, and the acquisition history database is searched by the input LSI type name or the function macro name, and the EDA library used for forming the LSI or the function macro and the use time point are used. bar Acquiring the EDA library, searching the EDA library database based on the acquired EDA library information and acquiring the latest version of the current EDA library, and retrieving the acquired EDA library, the version at the time of use and the latest version. A step of displaying based on the input LSI type name or function macro name.
It is possible to compare the latest version and the version at the time of use of the EDA library used in (system) LSIs or function macros designed by a large number of designers at a time with a simple operation. This has an effect that it is possible to prevent a logical verification error and a timing check error of a system LSI or a function macro caused by using an EDA library different between them beforehand.
[0015]
According to a second aspect of the present invention, there is provided an EDA library management method using an EDA library database managed and released in EDA library units, wherein the EDA library database is searched according to LSI search conditions and used for forming the LSI. Acquiring the EDA library and the function macro of the cell, recording the acquired EDA library, its version, the function macro, its macro version, and the type name of the LSI in an acquisition history database; Searching a library database to obtain an EDA library of a cell to be used for forming the function macro, and recording the obtained EDA library, its version, and the function macro name in an acquisition history database; Ma B) registering the EDA library name in advance, inputting the LSI type name at the time of obtaining the EDA library, searching the acquisition history database by the input LSI type name, and searching for the EDA library of the cell used for forming the LSI. Acquiring the function macro and the version at the time of use. If the acquired function macro name used for forming the LSI and the registered used function macro name match, the matched function macro Searching the acquisition history database by name to obtain the EDA library of the cell used for forming the function macro and the version at the time of use, and the EDA library of the acquired function macro and the acquired LSI. If the EDA libraries match, the time of using the function macro of the matching EDA library Which is characterized by comprising the step of displaying the version of use of version and the LSI,
(System) It is possible to immediately check the version at the time of use of the function macro used in the LSI and the version at the time of use of the EDA library, and the logical version of the system LSI which continues to use the old EDA library can be checked. This has an effect that it is possible to prevent a verification error and a timing check error from occurring.
[0016]
According to a third aspect of the present invention, there is provided an EDA library management method using an EDA library database managed and released in EDA library units, wherein the EDA library database is searched according to LSI or function macro search conditions, and the LSI or function is searched. Obtaining a EDA library of a cell used for forming a macro, and recording the obtained EDA library, its version, and the type name or function macro name of the LSI in an acquisition history database, and diverting the EDA library The source and target LSI product names or function macro names are input, and the obtained history database is searched using the input source LSI product name or function macro name to be used for forming the source LSI or function macro. Cell EDA line A step of acquiring a library and a version at the time of use; and a step of recording that the EDA library acquired by the diversion source LSI type name or the previous function macro name is obtained by the diversion destination LSI type name or function macro name. Searching the EDA library database based on the information of the EDA library obtained by the LSI type name or the previous function macro name obtained from the diversion source to obtain the latest version of the current EDA library; And displaying the latest version and the latest version based on the input LSI type name or function macro name.
(System) When developing a new LSI or function macro by modifying the internal logic of the LSI or function macro, the user can easily know the version at the time of use of the EDA library and the latest version, and continue to use the old EDA library. Logical verification error and timing check error of the system LSI or the function macro that occur due to the error can be prevented.
[0017]
According to a fourth aspect of the present invention, there is provided an EDA library management method using an EDA library database which manages and releases an EDA library unit. The EDA library database is searched by an LSI or function macro search condition, and the LSI or function is searched. Acquiring an EDA library of a cell used for forming a macro, and recording the acquired EDA library, its version, and the type name or function macro name of the LSI in an acquisition history database; Analyzing the data to determine a cell to be used as an EDA library, searching the acquisition history database by the determined cell name, and extracting an EDA library used for forming the LSI or the function macro; La Wherein the information of the library by searching the EDA library database is obtained by a step of acquiring the latest version of the current EDA library, comprising the step of displaying the most recent version of EDA library that is the use,
It is possible to know the latest version of the EDA library that is easily used by using the design data, and to prevent the logical verification mistake and the timing check mistake of the system LSI or the function macro that occur continuously using the old EDA library. It has the effect of being able to prevent it.
[0018]
The invention according to claim 5 is the invention according to any one of claim 1, claim 3, or claim 4, wherein the latest version is notified by e-mail. Yes,
The acquired latest version is notified by e-mail to many designers involved in the design of the (system) LSI or function macro, and many designers can recognize the latest version.
[0019]
The invention according to claim 6 is the invention according to claim 1 or 3, characterized in that it has a step of finding and releasing an EDA library whose version at the time of use does not match the latest version. Was done,
An EDA library in which the version at the time of use does not match the latest version is passed to many designers involved in designing LSIs or function macros, and these many designers have the effect of being able to recognize the difference between the versions.
[0020]
The invention according to claim 7 is the invention according to claim 2, wherein the step of obtaining and releasing an EDA library in which the version at the time of use of the function macro formation and the version at the time of use of the LSI formation do not match. Characterized by having
An EDA library in which the version at the time of use of function macro formation and the version at the time of use of LSI formation do not match is passed to many designers involved in LSI design, and many designers can recognize the difference between the versions. Have.
[0021]
The invention according to claim 8 is the invention according to claim 6 or 7, wherein the step of releasing releases the EDA library using ftp.
This has the effect that EDA libraries of different versions are transferred using ftp.
[0022]
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[Embodiment 1]
FIG. 1 is a block diagram of an EDA library management system that executes the EDA library management method according to the first embodiment of the present invention.
[0023]
In FIG. 1, reference numeral 1 denotes an input device such as a keyboard on which a system LSI designer or the like can interactively input commands and the like, 2 denotes a display device such as a monitor capable of displaying input information, and 3 denotes a release. The input device 1, the display device 2, and the storage device 3 are connected to an EDA library management system 10 including a computer.
[0024]
The EDA library management system 10
An EDA library database 11 in which EDA libraries are stored in EDA library units (cell tool units; including versions);
As shown in FIG. 3, "(acquired) cell name", "EDA tool name", "acquisition date, month, day, hour, minute, second", "version", "LSI model name or function macro name", "acquirer ID" acquired by the LSI designer "Is stored in the acquisition history database 12,
Information on the search condition of the LSI to be formed or the function macro and the information on the type name of the LSI to be formed (hereinafter abbreviated as LSI type name) or the name of the function macro (hereinafter abbreviated as function macro name) input from the input device 1 An input information processing unit 13 for storing and shaping;
A temporary storage device 14 for temporarily storing an EDA library that is retrieved from the EDA library database 11 and transferred to the storage device 3 as a part of an EDA library database management unit described later;
A script for searching in the EDA library database 11 is generated from the search condition of the LSI or the function macro stored and shaped in the input information processing unit 13, the EDA library database 11 is searched, and the obtained EDA library is temporarily stored. An EDA library database management unit 15 which temporarily stores the EDA library in the device 14 and searches the EDA library database 11 based on information of an EDA library described later to obtain an EDA library version;
The information of the EDA library acquired by the EDA library database management unit 15 is recorded in the acquisition history database 12, and the acquisition history database 12 is searched based on the LSI type name or the function macro name input from the input device 1 to search for the LSI. Alternatively, an acquisition history management unit 16 that acquires an EDA library of a cell used for forming a function macro, and further acquires the latest version of the current EDA library through the EDA library database management unit 15;
As shown in FIG. 4, the display unit 2 includes a display processing unit 17 that displays the information of the EDA library and the latest version information acquired by the acquisition history management unit 16 on the display device 2.
[0025]
The “acquirer ID” of the information stored in the acquisition history database 12 is separately linked to the list database, and information such as a name, a department, a telephone number, and an e-mail address can be referred to.
[0026]
The processing flow of the EDA library management method having the above configuration will be described with reference to FIG.
First, the flow of the process of acquiring the EDA library will be described.
Step-a1
When a search condition of an LSI or a function macro to be formed and an LSI type name or a function macro name to be formed are input to the input information processing unit 13 from the input device 1, the input information processing unit 13 inputs the input LSI or function to be formed. The macro search conditions and the LSI type name or function macro name to be formed are temporarily stored and shaped, and are passed to the EDA library database management unit 15.
Step-a2
The EDA library database management unit 15 generates a script for searching in the EDA library database 11 based on the search condition of the LSI or the function macro passed from the input information processing unit 13, and searches the EDA library database 11. Then, the information including the EDA library and its version acquired by this search is transferred to the acquisition history management unit 16 and stored in the temporary storage device 14 in the EDA library database management unit 15.
Step-a3
The acquisition history management unit 16 acquires the information including the acquired EDA library and its version and the LSI type name or function macro name stored in the input information processing unit 13 passed from the EDA library database management unit 15. To record.
[0027]
By the processing of the above-described steps -a1 to -a3, the information including the EDA library and its version acquired by the search condition of the LSI or the function macro and the LSI type name or the function macro name are recorded in the acquisition history database 12 ( be registered). That is, as shown in FIG. 3, “acquisition date / time / hour / minute / second”, “cell name”, “EDA tool name”, “version”, “LSI type name or function macro name”, and “acquirer ID” are recorded in the acquisition history database 12. Is done.
[0028]
Next, the flow of displaying the acquisition history of the EDA library will be described.
Step-b1
When an LSI type name or a function macro name using a cell obtained when the EDA library is obtained from the input device 1 is input to the input information processing unit 13, the input information processing unit 13 replaces the input LSI type name or function macro name with the input type information. It is passed to the acquisition history management unit 16.
Step-b2
The acquisition history management unit 16 stores EDA library information (acquisition history) that matches the passed LSI type name or function macro name, that is, EDA libraries (list) of cells used for forming the LSI or the function macro. The “acquisition date / time / hour / minute / second”, “cell name”, “EDA tool name”, “version (at the time of use)”, and “acquirer ID” are acquired from the acquisition history database 12.
Step-b3
The acquisition history management unit 16 acquires the latest version of each current EDA library from the EDA library database 11 through the EDA library database management unit 15 from the acquired EDA library information.
Step-b4
The acquisition history management unit 16 sends the acquired information to the display processing unit 17 and displays it on the display device 2 as shown in FIG. That is, the acquired EDA library list, the version at the time of use, and the latest version are displayed based on the input LSI type name or function macro name. As a result, the display device 2 displays “acquisition date”, “hour, minute, second”, “cell name”, “EDA tool name”, “version (at the time of use)”, “latest version”, and “acquirer name”.
[0029]
When the LSI type name or function macro name in which the cell obtained at the time of obtaining the EDA library is used is input by the processing of step-b1 to step-b4, the acquisition history database 12 stores the LSI type name or function macro name. The EDA library of the cell that is searched for and used to form the system LSI or the function macro, that is, “acquisition year, month, day, hour, minute, second”, “cell name”, “EDA tool name”, “version (at the time of use)”, “acquirer” The EDA library database 11 is searched based on the acquired information of the EDA library, and the latest version of the current EDA library is acquired. These “acquisition date”, “hour, minute, second”, and “cell name” are obtained. "EDA tool name""version (at the time of use)""latestversion""acquirername" It is displayed on the display device 2.
[0030]
As described above, according to the first embodiment, a simple operation of inputting the type name of a system LSI or the name of a function macro can be performed by using a simple operation of inputting the name of a cell used in a system LSI or a function macro designed by many LSI designers. The version at the time of use of the EDA library and the latest version can be collectively displayed on the display device 2 and can be compared with each other. Verification errors and timing check errors can be prevented beforehand.
[Embodiment 2]
FIG. 5 is a block diagram of an EDA library management system that executes the EDA library management method according to the second embodiment of the present invention. The same components as those in the first embodiment shown in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted.
[0031]
In the second embodiment, the EDA library management system 10 'is newly provided with a function macro table 18 for registering a function macro name to be used by the input device 1, and the EDA library database 11 is newly provided with an LSI. And the version (macro version) of the function macro used to form the macro.
[0032]
The processing flow of the EDA library management method having the above configuration will be described with reference to FIG.
First, the flow of the process of acquiring the EDA library will be described.
Step-a1
When a search condition of an LSI or a function macro to be formed and an LSI type name or a function macro name to be formed are input from the input device 1 to the input information processing unit 13, the input information processing unit 13 The search condition of the function macro and the name of the LSI type to be formed or the name of the function macro are temporarily stored, shaped, and passed to the EDA library database management unit 15.
Step-a2
The EDA library database management unit 15 generates a script for searching in the EDA library database 11 from the LSI or function macro search conditions passed from the input information processing unit 13, and searches the EDA library database 11. Then, the EDA library and the version of the cell used for forming the LSI and the information including the function macro and the macro version (in the case of the LSI product name) obtained by this search, or the EDA library of the cell used for forming the function macro And the information including the version (in the case of a function macro name) is passed to the acquisition history management unit 16 and stored in the temporary storage device 14 in the EDA library database management unit 15.
Step-a3
The acquisition history management unit 16 obtains the information including the EDA library and the version of the cell used for forming the LSI, the version thereof, the function macro and the macro version, and the LSI product name passed from the EDA library database management unit 15, or The information including the EDA library of the cell used for forming the function macro and its version and the function macro name are recorded in the acquisition history database 12.
[0033]
Through the processing of the above-described steps -a1 to -a3, information of the EDA library or the function macro acquired by the search condition of the LSI or the function macro is recorded in the acquisition history database 12. That is, in the case of a system LSI, “acquisition date / time / hour / minute / second”, “acquisition cell name”, “EDA tool name”, “version”, “function macro name”, “macro version”, and further, “LSI product name” and “acquisition ID” When the function macro is recorded in the acquisition history database 12, “acquisition year, month, day, hour, minute, second”, “acquisition cell name”, “EDA tool name”, “version”, and “function macro name”, “acquisition person ID” are further acquired in the acquisition history database. 12 is recorded.
[0034]
Next, the flow of registration of a function macro name to be used will be described.
Step-c1
When a function macro name used for forming an LSI is input from the input device 1 to the input information processing unit 13, the input information processing unit 13 temporarily stores the input function macro name.
Step-c2
Subsequently, the input information processing unit 13 registers the once stored function macro name in the used function macro table 18.
[0035]
The function macro name is registered in the used function macro table 18 by the above-described steps -c1 and -c2.
Next, the flow of displaying the acquisition history of the EDA library will be described.
Step-b1
When an LSI type name using a cell from which an EDA library has been obtained is input from the input device 1 to the input information processing unit 13, the input information processing unit 13 stores the input LSI type name and sends it to the acquisition history management unit 16. hand over.
Step-b2
The acquisition history management unit 16 obtains information (acquisition history) of the EDA library that matches the LSI type name passed from the input information processing unit 13, that is, “acquisition year, month, day, hour, minute, second”, “acquisition cell name”, “EDA tool name” The “version”, “function macro name”, “macro version”, and “acquirer ID” are acquired from the acquisition history database 12.
Step-b3
The acquisition history management unit 16 confirms whether the acquired function macro name matches the function macro name registered in the used function macro table 18, and acquires the function macro name if they match.
Step-b4
The acquisition history management unit 16 searches the acquisition history database 12 using the acquired function macro name, and acquires the EDA library used in forming the function macro and its version.
Step-b5
If the EDA library used for forming the extracted LSI matches the EDA library used for forming the function macro, the acquisition history management unit 16 determines the current EDA library from the information of the matching EDA library. The latest version of the EDA library is obtained from the EDA library database 11 through the EDA library database management unit 15.
Step-b6
The acquisition history management unit 16 sends the acquired information to the display processing unit 17 and displays it on the display device 2 as shown in FIG. That is, “acquisition date”, “hour, minute, second”, “acquisition cell name”, “EDA tool name”, “version”, “macro version”, “latest version”, and “acquisition name” are displayed.
[0036]
When the LSI type name at the time of acquisition of the EDA library is input by the processing of the above-described steps -b1 to -b6, the acquisition history database 12 is searched by the LSI type name and the cells used in the formation of the system LSI are searched. Information of the EDA library, that is, “acquisition year, month, day, hour, minute, second”, “acquisition cell name”, “EDA tool name”, “version”, “function macro name”, “macro version”, and “acquisition person ID” are acquired, and the acquired function is obtained. When the macro name and the function macro name registered in advance match, the EDA library and the version of the cell used for forming the function macro are obtained, and the EDA library and the EDA library used for forming the LSI are obtained. If they match, the latest version of the matching EDA library is stored in the EDA library database 11 Searched and acquired, these acquired "acquisition date""hour minute second""cellname""EDA tool name""version (at the time of use)""macro version (at the time of use)""latest The version and the “acquirer name” are displayed on the display device 2.
[0037]
As described above, according to the second embodiment, the version at the time of use of the matching EDA library function macro and the LSI at the time of use can be input by a simple operation of inputting the LSI product name using the cell obtained at the time of obtaining the EDA library. It is possible to immediately check the version at the time of use and the latest version of the formation, and to prevent a logical verification mistake and a timing check mistake of the system LSI that occur continuously using the old EDA library. .
[Embodiment 3]
The processing flow of the EDA library management method according to the third embodiment of the present invention will be described with reference to FIG. The configuration diagram of the EDA library management system is the same as that of the first embodiment of FIG. Description will be made using the reference numerals of the configuration of the first embodiment. Further, as in the first embodiment, it is assumed that the information of the EDA library acquired by the search condition of the LSI or the function macro is recorded in the acquisition history database 12. That is, it is assumed that “acquisition year, month, day, hour, minute, second”, “cell name”, “EDA tool name”, “version”, “LSI model name or function macro name”, and “acquirer ID” are recorded in the acquisition history database 12.
[0038]
A description will be given of the diversion setting of the EDA library.
Step-d1
When the name of the diverted source and diverted LSI product or the name of the diverted source and diverted function macro for diverting the EDA library is input to the input information processing unit 13 from the input device 1, the input information processing unit 13 receives the diverted input. The original and diverted LSI product names or the diverted source and diverted function macro names are stored and passed to the acquisition history management unit 16. Step-d2
The acquisition history management unit 16 searches the acquisition history database 12 based on the passed LSI type name of the diversion source or the name of the function macro of the diversion source, and finds the searched EDA library and the version at the time of use (acquisition history) in the destination LSI. Copy (record) as obtained by the product name or the function macro name of the diversion destination. At this time, the time information such as the acquisition date describes the date on which the diversion setting was performed. Also, the acquirer describes the information of the person who made the diversion setting.
Step-d3
The acquisition history management unit 16 acquires the latest version of each current EDA library from the EDA library database 11 through the EDA library database management unit 15 from the acquired EDA library information.
Step-d4
The acquisition history management unit 16 sends the acquired information of the LSI type name of the diversion destination or the name of the function macro of the diversion destination to the display processing unit 17 and displays it on the display device 2 as shown in FIG. That is, "diversion date", "hour, minute, second", "cell name", "EDA tool name", "version (at the time of use)", "latest version", and "diversion user name" are displayed.
[0039]
As described above, according to the third embodiment, the system LSI or the function macro can be obtained by a simple operation of inputting the diversion source and diversion target LSI product name or the diversion source and diversion function macro name. The latest version of the EDA library can be easily known at the time of development of a new LSI or function macro by modifying the internal logic or the like, and a logical verification error of the system LSI or the function macro that occurs continuously using the old EDA library. In addition, it is possible to prevent a timing check error from occurring.
[Embodiment 4]
The processing flow of the EDA library management method according to the fourth embodiment of the present invention will be described with reference to FIG. The configuration diagram of the EDA library management system is the same as that of the first embodiment of FIG. Description will be made using the reference numerals of the configuration of the first embodiment. Further, as in the first embodiment, it is assumed that the information of the EDA library acquired by the search condition of the LSI or the function macro is recorded in the acquisition history database 12. That is, it is assumed that “acquisition year, month, day, hour, minute, second”, “cell name”, “EDA tool name”, “version”, “LSI model name or function macro name”, and “acquirer ID” are recorded in the acquisition history database 12.
[0040]
In the fourth embodiment of the present invention, it is assumed that specific element and cell names are stored in advance in the input information processing unit 13 for each netlist.
The display of the version of the EDA library will be described.
Step-e1
When design data whose version is to be checked, for example, a netlist, is input to the input information processing unit 13 from the input device 1, the input information processing unit 13 stores the input netlist.
Step-e2
The input information processing unit 13 analyzes the stored netlist, acquires a cell name used as an EDA library, and passes it to the acquisition history management unit 16.
Step-e3
The acquisition history management unit 16 acquires information (acquisition history) including the respective EDA libraries and their versions from the acquisition history database 12 based on the acquired cell names passed from the input information processing unit 13.
Step-e4
Further, the acquisition history management unit 16 acquires the latest version of each current EDA library from the EDA library database 11 through the EDA library database management unit 15 from the extracted EDA library information.
Step-e5
The acquisition history management unit 16 sends the information to the display processing unit 17 and displays the information on the display device 2 as shown in FIG. That is, “acquired cell name”, “EDA tool name”, “date”, “hour, minute, second”, “version”, “latest version”, and “acquirer name” are displayed.
[0041]
As described above, according to the fourth embodiment, the latest version of the EDA library of the used cell can be easily known from the design data such as the netlist, and the system LSI which continues to use the old EDA library can be obtained. Alternatively, it is possible to prevent a logical verification error and a timing check error of the function macro from occurring.
[0042]
In the first, second, third, and fourth embodiments, a step of transmitting a version display by e-mail can be added. Thus, the acquired latest version can be notified by e-mail to many designers involved in the design of the system LSI or the function macro, and these many designers can be notified of the latest version.
[0043]
Also, in the first, second, and third embodiments, the EDA library having a different version, that is, an EDA library having a latest version different from the version at the time of use, or a version at the time of use for forming a function macro. It is also possible to add a step of releasing an EDA library having a different version at the time of use to form the LSI and the LSI. At this time, it can be transmitted by ftp (file transfer protocol) as a release means. As a result, the EDA library of a different version is transferred using ftp, that is, the EDA library in which the version at the time of use does not match the latest version, or the version at the time of use of the function macro formation and the version at the time of use of the LSI formation do not match. The EDA library is passed to many designers involved in designing an LSI or a function macro, and these many designers can be made aware of the difference between versions.
[0044]
In addition, the first, second, third, and fourth embodiments can be implemented using an HTTP (Hypertext Transport Protocol) server as shown in FIG.
[0045]
【The invention's effect】
As described above, according to the present invention, the version at the time of use and the latest version of the EDA library used in a (system) LSI or a function macro designed by a large number of designers are integrated by a simple operation. The advantage is that it is possible to prevent a logical verification error and a timing check error of a system LSI or a function macro caused by using different EDA libraries between different design processes. Can be
[Brief description of the drawings]
FIG. 1 is a block diagram of an EDA library management system that executes an EDA library management method according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a flow of processing in the EDA library management system.
FIG. 3 is a diagram showing contents described in an acquisition history database of the EDA library management system.
FIG. 4 is a diagram showing an example of a result display of the EDA library management system.
FIG. 5 is a block diagram of an EDA library management system that executes an EDA library management method according to a second embodiment of the present invention.
FIG. 6 is a diagram showing a flow of processing in the EDA library management system.
FIG. 7 is a diagram showing an example of a result display of the EDA library management system.
FIG. 8 is a diagram showing a flow of processing in an EDA library management system that executes an EDA library management method according to Embodiment 3 of the present invention.
FIG. 9 is a diagram showing an example of a result display of the EDA library management system.
FIG. 10 is a diagram showing a flow of processing in an EDA library management system that executes an EDA library management method according to Embodiment 4 of the present invention.
FIG. 11 is a diagram showing an example of a result display of the EDA library management system.
FIG. 12 is a diagram showing a configuration example of a system using a network in the first to fourth embodiments.
[Explanation of symbols]
1 Input device
2 Display device
3 Storage device
10,10 'EDA library management system
11 EDA library database
12 Acquisition history database
13 Input information processing unit
14 Temporary storage device
15 EDA Library Database Management Department
16 Acquisition history management unit
17 Display processing unit
18 Function macro table

Claims (8)

An EDA library management method using an EDA library database managed and released in units of EDA libraries,
The EDA library database is searched according to LSI or function macro search conditions to obtain an EDA library of cells used for forming the LSI or function macro, and the obtained EDA library and its version, and the type name or function of the LSI Recording a macro name in an acquisition history database,
An EDA library used for forming the LSI or the function macro by inputting the LSI type name or the function macro name at the time of obtaining the EDA library, searching the acquisition history database based on the input LSI type name or the function macro name. And obtaining a version at the time of use,
Searching the EDA library database according to the acquired information of the EDA library and acquiring the latest version of the current EDA library;
An EDA library management method, comprising the step of displaying the acquired EDA library, the version at the time of use, and the latest version based on the input LSI type name or function macro name. An EDA library management method using an EDA library database managed and released in units of EDA libraries,
The EDA library database is searched according to LSI search conditions to obtain an EDA library and a function macro of a cell used for forming the LSI, and the obtained EDA library, its version, a function macro, its macro version, and the LSI A step of recording the type name in the acquisition history database;
The EDA library database is searched according to the function macro search condition to obtain an EDA library of a cell used for forming the function macro, and the obtained EDA library, its version, and the function macro name are recorded in an acquisition history database. Process
Registering a function macro name to be used in advance;
The LSI type at the time of acquisition of the EDA library is input, the acquisition history database is searched by the input LSI type name, and the EDA library and function macro of the cell used for forming the LSI and the version at the time of use are obtained. A step of obtaining
If the acquired function macro name used for forming the LSI matches the registered used function macro name, the acquisition history database is searched with the matched function macro name, and this function macro is formed. Obtaining the EDA library of the cell used in the step and the version at the time of its use;
If the EDA library of the acquired function macro and the EDA library of the acquired LSI match, displaying the version of the EDA library at the time of use of the function macro and the version of the LSI at the time of use of the matched EDA library An EDA library management method, comprising: An EDA library management method using an EDA library database managed and released in units of EDA libraries,
The EDA library database is searched according to LSI or function macro search conditions to obtain an EDA library of cells used for forming the LSI or function macro, and the obtained EDA library and its version, and the type name or function of the LSI Recording a macro name in an acquisition history database,
The diversion source and the diversion destination LSI type name or function macro name of the EDA library are input, and the acquisition history database is searched by the input diversion source LSI type name or function macro name, and the diversion source LSI or function is input. Obtaining an EDA library and a point-in-time version of the cell used for forming the macro;
Recording the EDA library acquired under the diversion source LSI type name or the previous function macro name as the diversion source LSI type name or the function macro name;
Searching the EDA library database based on the information of the EDA library acquired by the LSI type name or the previous function macro name of the diversion source to acquire the latest version of the current EDA library;
An EDA library management method, comprising the step of displaying the acquired EDA library, the version at the time of use, and the latest version based on the input LSI type name or function macro name. An EDA library management method using an EDA library database managed and released in units of EDA libraries,
The EDA library database is searched according to LSI or function macro search conditions to obtain an EDA library of cells used for forming the LSI or function macro, and the obtained EDA library and its version, and the type name or function of the LSI Recording a macro name in an acquisition history database,
A cell used as an EDA library is obtained by analyzing design data of an LSI or a function macro, and the acquisition history database is searched by the obtained cell name to extract an EDA library used for forming the LSI or a function macro. Process and
Searching the EDA library database with the extracted EDA library information to obtain the latest version of the current EDA library;
Displaying a latest version of the used EDA library. 5. The EDA library management method according to claim 1, wherein the latest version is notified by e-mail. 4. The EDA library management method according to claim 1, further comprising a step of obtaining and releasing an EDA library whose version at the time of use does not match the latest version. 3. The EDA library management method according to claim 2, further comprising a step of obtaining and releasing an EDA library in which the version at the time of use of the function macro formation and the version at the time of use of the LSI formation do not match. 8. The EDA library management method according to claim 6, wherein the releasing step releases the EDA library using ftp.

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