CN101470763A - Derating checking method and computer-readable storage medium - Google Patents
Derating checking method and computer-readable storage medium Download PDFInfo
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- CN101470763A CN101470763A CNA2007103054709A CN200710305470A CN101470763A CN 101470763 A CN101470763 A CN 101470763A CN A2007103054709 A CNA2007103054709 A CN A2007103054709A CN 200710305470 A CN200710305470 A CN 200710305470A CN 101470763 A CN101470763 A CN 101470763A
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Abstract
The invention discloses a derating inspection method, which comprises opening a circuit layout design gear, screening at least one target part number belonging to the target class from a plurality of part numbers (parts number) used in the circuit layout design gear, obtaining the rated voltage value according to the target part number, obtaining the element number of at least one element using the target part number in the circuit layout design gear according to the target part number, obtaining a first connection name (net name) and a second connection name respectively connected with the two ends of the element according to the element name, and judging whether the derating voltage of the element fits for the rated voltage value according to the first connection name and the second connection name.
Description
Technical field
The invention relates to the inspection behind a kind of circuit layout, and particularly relevant for the inspection method of part derate in a kind of circuit layout.
Background technology
After finishing circuit layout, to carry out various inspections usually.Derate (Derating) inspection is wherein in the middle of many inspection items.Traditionally, when the derate of part in the executive circuit layout (for example electric capacity) is checked, the examiner must with manual type according to the Position Number of part in whole part of wiring diagram, the search of a part of a part.After searching a certain part name, the signal potential that is connect according to the electric capacity two-end-point by the artificial judgment mode judges whether derate passes through or surpass the rated voltage (normal ratedvoltage) of this electric capacity again.Yet, employed electric capacity part in the circuit layout of common product, quantity is dozens of at least, reaches thousands of at most.With manual type inspection derate one by one, suitable is consuming time, influences the Product Validation cycle.In addition, by the magnitude of voltage of artificial judgment electric capacity contact, normal wrong situation takes place.
Summary of the invention
For addressing the above problem, the present invention proposes a kind of derating checking method.This derating checking method comprises: open circuit topological design shelves; In circuit layout design shelves employed a plurality of item numbers (parts name), filter out and belong to other at least one target item number of target class; According to the target item number, obtain load voltage value; According to the target item number, be taken at the part name that uses at least one part of target item number in the circuit layout design shelves; According to this part name, obtain the first line title (net name) and the second line title that are connected with part two ends respectively; And, judge whether the derate voltage of part meets load voltage value according to the first line title and the second line title.
The present invention provides a kind of computer-readable storage medium in addition, in order to library computer program.This computer program is in order to be loaded in the computer system and to make this computer system carry out above-mentioned derating checking method.
Derating checking method of the present invention can be realized by computer program, therefore can be automatically performed above-mentioned derating checking method.The magnitude of voltage that the method can be automatically connect part name, narration, rated voltage and the part two ends of part is analyzed, and whether meets this load voltage value to judge the part derate.Therefore, the method can be saved a large amount of man-hours, reduces the Product Validation cycle, gets rid of the possibility of artificial judgment mistake.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated, wherein:
Fig. 1 is the process flow diagram that a kind of derating checking method is described according to the embodiment of the invention.
Fig. 2 is the enforcement example according to step S160 in the key diagram 1 of the present invention.
Fig. 3 is another enforcement example according to step S160 in the key diagram 1 of the present invention.
Fig. 4 is the process flow diagram according to another embodiment of the present invention explanation derating checking method.
Embodiment
The those skilled in the art can realize the present invention with reference to following examples.Certainly, the form that following embodiment also can computer program realizes, and utilizes computer-readable storage medium to store this computer program, carries out derate (derating) inspection method in order to computer.
Fig. 1 is the process flow diagram that a kind of derating checking method is described according to the embodiment of the invention.Open circuit topological design shelves (step S110) at first, in these circuit layout design shelves, employed a plurality of item numbers (partsname or Parts number), filter out the one or more target item numbers (step S120) that belong to target classification (for example electric capacity) then.Can utilize key word to retrieve at this and belong to other all target item numbers of a certain target class.For example, suppose item number beginning be " 6010 " all be capacitance kind, therefore can utilize key word " 6010 " retrieve capacitance kind all target item numbers " 6010A0036501 ", " 6010A003630S ", " 6010B0012101 " ... etc.
Generally speaking, in parts library, writing down the definition (for example information such as item number, apparent size, pin position, rated voltage) of each materials and parts (parts).Therefore behind the selected target item number, next just can from circuit layout design shelves, obtain the load voltage value (step S130) of these target materials and parts (item number) according to the target item number.
In step S140, also can be taken at the part name (reference name or location) that uses one or more parts of these target item numbers in the circuit layout design shelves according to the target item number.Behind the part name that filters out desire inspection part, just can obtain the line title (net name) (step S150) that is connected with these part two ends respectively according to part name.At a certain part,, judge whether the derate voltage of this part meets load voltage value (step S160) according to the first line title and the second line title that part two ends therewith are connected.Check part at filtering out desire, seriatim each part name is carried out step S160, so can obtain the derate check result of each part.After treating all part completing steps S160 that filter out, just carry out the judged result of step S170 with reporting step S160.The report manner of step S170 can be remittance abroad literal shelves, be presented on the screen or other modes.
Above-mentioned steps S160 can achieve in any way.For example, Fig. 2 is the enforcement example according to step S160 in the key diagram 1 of the present invention.Behind completing steps S150, can then carry out step S161, to resolve the first line title of each part first end seriatim, to obtain the first line magnitude of voltage.In step S162, also resolve the second line title of each part second end seriatim, to obtain the second line magnitude of voltage.At some parts, after knowing first and second line magnitude of voltage of its two end, just can calculate the difference of first and second line magnitude of voltage, to obtain the derate voltage (step S163) of this part.
At some parts, after obtaining the derate voltage of this part, just relatively the derate voltage of this part and rated voltage (step S164).If derate voltage is less than load voltage value, the derate voltage that then can judge this part is (the step S165) that meets load voltage value.Otherwise if derate voltage greater than load voltage value, can judge that then the derate voltage of this part exceeds rated voltage, this is not allowed to.Therefore when if derate voltage greater than load voltage value, just needs this part of annotation, revise circuit layout design shelves (step S166) to remind the user.Mode at this this part of annotation can be to show this part with high brightness in circuit layout design shelves, perhaps manifests the caution message of this part in the report of step S170.
In other embodiments, step S164 can also relatively connect first and second line title of this part.If the first line title equates that with the second line title then this part of annotation confirms further to remind the user whether this part is unnecessary part.
Except can also can otherwise implementing with reference to Fig. 2 implementation step S160.For example, Fig. 3 is another enforcement example according to step S160 in the key diagram 1 of the present invention.Please refer to Fig. 3, step S161～S163 can not repeat them here with reference to the related description of Fig. 2.At some parts, behind the derate voltage that obtains this part (step S163), can calculate the product of this load voltage value and certain default percent value, to obtain safe voltage value (step S167).This percent value can be set by the user.For example, if the load voltage value of the electric capacity of certain item number is 20V, in order to ensure circuit safety, circuit designers can be come design circuit with 80% rated voltage.That is to say that present embodiment will be checked this part with the safe voltage value of 20V * 80%=16V.
Step S168 is the derate voltage and the safe voltage value of relatively this part.If derate voltage is less than the safe voltage value, the derate voltage that then can be considered as this part is (the step S165) that meets load voltage value.Otherwise,, then exceed rated voltage because of violating the derate voltage that design rule can be considered as this part if derate voltage is greater than the safe voltage value.Therefore when if derate voltage greater than the safe voltage value, just needs this part of annotation (step S166), revise circuit layout design shelves to remind the user.
In other embodiments, step S168 can also relatively connect first and second line title of this part.If the first line title equates that with the second line title then this part of annotation confirms further to remind the user whether this part is unnecessary part.
Derating checking method of the present invention is not limited to above-mentioned embodiment.For example, Fig. 4 is the process flow diagram according to another embodiment of the present invention explanation derating checking method.Open circuit topological design shelves (step S405) at first.Present embodiment will be an application examples with circuit design aids " CONCEPT " software.In " CONCEPT " environment, circuit layout can be designed the materials and parts information remittance abroad of shelves, and be made into " chip.dat " literal archives.In addition, " CONCEPT " also can design circuit layout the parts information and the link information remittance abroad of shelves, and is made into " prt.dat " and " net.dat " literal archives respectively.
" chip.dat " writing down this circuit layout design employed item number of shelves and electrical specification value thereof.For example, the electrical specification value (rated voltage) that " chip.dat " may note down the electric capacity of item number " 6010A0036501 " is 16V, and the electrical specification value (rated voltage) of the electric capacity of item number " 6010B0012101 " is 6.3V.
The item number that " prt.dat " writing down all part names (position) in this circuit layout design shelves and adopted.For example, the item number that " prt.dat " may write down electric capacity title C1 in these circuit layout design shelves is " 6010A0036501 ", and the item number of electric capacity title C2 is " 6010A0036501 ", and the item number of electric capacity title C14 is " 6010B0012101 " ... etc.
" net.dat " writing down in these circuit layout design shelves, the line title (net name) that the pin of each part (pin) is connected with it.That is, " net.dat " writing down in these circuit layout design shelves, part name, pin title and line title three's corresponding relation (annexation).For example, " net.dat " may note down the first line title that the pin 1 of electric capacity title C1 in this circuit layout design shelves connected is P3V3_STBY, and the second line title that the pin 2 of electric capacity title C1 is connected is GND; The first line title that the pin 1 of electric capacity title C2 is connected is CLK_100M_PE_DP, and the second line title that the pin 2 of electric capacity title C2 is connected is PCIE_RECLK_DP... etc.
From a plurality of item numbers that " chip.dat " shelves are noted down, filter out the one or more target item numbers (step S410) that belong to target classification (for example electric capacity) then.Can utilize key word to retrieve at this and belong to other all target item numbers of a certain target class.For example, suppose item number beginning be " 6010 " all be capacitance kind, because of can utilize key word " 6010 " to retrieve all target item numbers of capacitance kind, for example " 6010A0036501 ", " 6010A003630S ", " 6010B0012101 " ... etc.
Behind the selected target item number, can obtain the part name of the one or more parts that use these target item numbers according to the target item number in " prt.dat " shelves, and these part names are added in the form (step S415).For example, from " prt.dat " shelves can retrieve the part name that uses item number " 6010A0036501 " have C1, C2, C3 ... etc., and use the part name of item number " 6010B0012101 " have C14, C15 ... etc.Present embodiment does not limit content, structure or the implementation of above-mentioned " form ".Will be that example illustrates above-mentioned " form " with table 1 after a while.
Behind the selected target item number, can link to the materials and parts management database, and in the materials and parts management database, obtain corresponding " materials and parts explanation " data (step S420) according to the target item number.After " materials and parts explanation " data of acquisition, in the lump these data are inserted in the form.
Next just can from " chip.dat " shelves, obtain the load voltage value of these target materials and parts (item number), and these load voltage values are added in the form (step S425) according to the target item number.For example, can retrieve and use the rated voltage of item number " 6010A0036501 " to be 16V from " chip.dat " shelves, the rated voltage of item number " 6010B0012101 " is 6.3V.
Behind the part name that filters out desire inspection part, just can from " net.dat " shelves, obtain the line title that is connected with these part two ends respectively, and these line titles are added in forms (step S430) according to part name.For example, can retrieve the first line title that the pin 1 of part name C1 connected from " net.dat " shelves is P3V3_STBY, and the second line title that the pin 2 of electric capacity title C1 is connected is GND; The first line title that the pin 1 of electric capacity title C2 is connected is CLK_100M_PE_DP, and the second line title that the pin 2 of electric capacity title C2 is connected is PCIE_RECLK_DP... etc.
After obtaining the line title that is connected with these parts two ends, just can obtain the line magnitude of voltage (or operational voltage value) (step S435) of these part two ends according to the line title that is connected with these part two ends.For example, can analyze this line from line title " P3V3_STBY " is 3.3V power lead (because its beginning is " P3V3 "); Can analyze this line from line title " GND " is the 0V ground wire ... etc.Behind the line magnitude of voltage that analyzes all line title representatives, just these line titles are inserted (step S440) in the form with corresponding line magnitude of voltage.
After finishing above-mentioned steps, above-mentioned " form " noted down many qualified part derate information and load voltage value.In order to help the user to understand the information that " form " write down, therefore carry out step S445 and carry out data ordering (classification).This step S445 will resolve " materials and parts explanation " data of being obtained at step S420, with as carrying out data ordering (classification) foundation.For example, in " materials and parts explanation " data, beginning is that the expression of CAP is the electric capacity (for example being aluminum capacitor) of same type, can be that " CAP " person is placed in the same group with " materials and parts explanation " beginning therefore.
Seriatim each part name is carried out aforesaid operations, so can obtain derate data of each part etc.After treating that all parts that filter out are finished aforesaid operations, just carry out step S450 so that above-mentioned " form " exported.In this what is called " form " output can be to show, print and/or store to be somebody's turn to do " form ".
Table 1: the form (part) that Fig. 4 embodiment is prepared
| Part name (pin) | Item number | The materials and parts explanation | Load voltage value | The first line title | The first line magnitude of voltage | The second line title | The second line magnitude of voltage |
| C1 (1:2) | 6010A0036501 | CAP-CHIP-0.1MFD-16V- Z-Y5V-0402-TAP | 16V | P3V3_STBY | 3.3 | GND | 0 |
| C2 (1:2) | 6010A0036501 | CAP-CHIP-0.1MFD-16V- Z-Y5V-0402-TAP | 16V | CLK_100M_ PE_DP | 0 | PCIE_REC LK_DP | 0 |
| C3 (1:2) | 6010A0036501 | CAP-CHIP-0.1MFD-16V- Z-Y5V-0402-TAP | 16V | CLK_100M PE_DN | 0 | PCIE_REC LK_DN | 0 |
| C13 (1:2) | 6010A003630S | CAP-CHIP-0.01MFD-16V -K-X7R-0402-TAP | 16V | VTT_PEX_P H | 0.9 | GND | 0 |
| C14 (1:2) | 6010B0012101 | CAPACITOR-CHIP-22μF -6.3V-M-X5R-0805-TAP | 6.3V | VDDA_COR E_PLL | 1.8 | VSSA_CO RE_PLL | 0 |
| C15 (1:2) | 6010B0012101 | CAPACITOR-CHIP-22μF -6.3V-M-X5R-0805-TAP | 6.3V | VDDA_MEM _PLL | 1.8 | VSSA_ME M_PLL | 0 |
Table 1 is the prepared form of explanation the foregoing description, partial content that it is possible and data structure.This form can offer rated voltage and the derate voltage (i.e. the first line magnitude of voltage-second line magnitude of voltage) that the user understands each target part (present embodiment is various capacity cell) in the circuit layout design shelves.Different with previous embodiment is, present embodiment only converges the rated voltage of each target part and derate voltage to be put in order in form, and the relation of the two without comparison.The those skilled in the art also can be with reference to the enlightenment of aforementioned all embodiment, and gives improvement as one thinks fit.For example, can between step S445 and S450, add step S455 and S460.
Step S455 can go to calculate the difference of first and second line magnitude of voltage, with the derate voltage as each target part.After obtaining derate voltage, just can compare with the rated voltage of each target part, whether meet rated voltage with the derate voltage of judging each target part in this form.The step S455 of present embodiment can implement with reference to the explanation of the step S160 of figure 1.At the part that filters out in the form, seriatim each part name is carried out aforesaid operations, so can obtain the derate check result of each part.After treating that part in all forms is finished inspection, just carry out step S460 in case in form the judged result of annotation step S455.
In other embodiments, first and second line title of each target part in all right comparative statements of step S455.If the first line title equates that with the second line title then this part of annotation in form confirms further to remind the user whether this part is unnecessary part.
Behind form realization the foregoing description with computer program, the user only need import 3 .dat archives that produced by mapping software, this computer program just can produce form automatically, and the magnitude of voltage remittance that the part name (position) of all target part, materials and parts explanations (narration), rated voltage and target part two ends are connect is put in order in form automatically, in order to the derate of judging each target part whether by or surpass.The foregoing description can be saved a large amount of man-hours, reduces the Product Validation cycle, guarantees that simultaneously data is correct, gets rid of the possibility of artificial treatment mistake.
Though the present invention discloses as above with preferred embodiment; right its is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when can doing a little modification and perfect, so protection scope of the present invention is when with being as the criterion that claims were defined.
Claims (8)
1. derating checking method comprises:
Open circuit layout design shelves;
In this circuit layout design shelves employed a plurality of item numbers, filter out and belong to other at least one target item number of a target class;
According to this target item number, obtain a load voltage value;
According to this target item number, be taken at the part name that uses at least one part of this target item number in these circuit layout design shelves;
According to this part name, obtain the one first line title and the one second line title that are connected with these part two ends respectively; And
According to this first line title and this second line title, judge whether the derate voltage of this part meets this load voltage value.
2. derating checking method as claimed in claim 1 is characterized in that, the step whether the derate voltage of judging this part meets this load voltage value comprises:
Resolve this first line title, to obtain one first line magnitude of voltage;
Resolve this second line title, to obtain one second line magnitude of voltage; And
Calculate the difference of this first line magnitude of voltage and this second line magnitude of voltage, to obtain the derate voltage of this part.
3. derating checking method as claimed in claim 2 is characterized in that, the step whether the derate voltage of judging this part meets this load voltage value also comprises:
Relatively the derate voltage of this part and this load voltage value; And
If this derate voltage is less than this load voltage value, this this load voltage value of derate voltage conforms then.
4. derating checking method as claimed in claim 2 is characterized in that, the step whether the derate voltage of judging this part meets this load voltage value also comprises:
Calculate the product of this load voltage value and a percent value, to obtain a safe voltage value;
Relatively the derate voltage of this part and this safe voltage value; And
If this derate voltage is less than this safe voltage value, this this load voltage value of derate voltage conforms then.
5. derating checking method as claimed in claim 1 is characterized in that, also comprise the report judge whether the derate voltage of this part meets the result of this load voltage value.
6. derating checking method as claimed in claim 1 is characterized in that, also comprises:
Relatively this first line title and this second line title; And
Equate with this second line title as if this first line title, then this part of annotation.
7. derating checking method as claimed in claim 1 is characterized in that, also comprises:
Link to a materials and parts management database; And
According to this target item number, this materials and parts management database obtains a corresponding materials and parts explanation certainly.
8. computer-readable storage medium, in order to store a computer program, this computer program is in order to be loaded in the computer system and to make this computer system carry out derating checking method as claimed in claim 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2007103054709A CN101470763A (en) | 2007-12-25 | 2007-12-25 | Derating checking method and computer-readable storage medium |
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| CNA2007103054709A CN101470763A (en) | 2007-12-25 | 2007-12-25 | Derating checking method and computer-readable storage medium |
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| CN101470763A true CN101470763A (en) | 2009-07-01 |
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| CNA2007103054709A Pending CN101470763A (en) | 2007-12-25 | 2007-12-25 | Derating checking method and computer-readable storage medium |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236725A (en) * | 2010-04-26 | 2011-11-09 | 鸿富锦精密工业（深圳）有限公司 | Part de-rating design system and method |
| CN105160082A (en) * | 2015-08-17 | 2015-12-16 | 加弘科技咨询(上海)有限公司 | Electronic circuit recycling and verifying method |
| CN109815468A (en) * | 2018-12-27 | 2019-05-28 | 西南技术物理研究所 | A kind of component design of Reducing Rating report automatic generation method |
-
2007
- 2007-12-25 CN CNA2007103054709A patent/CN101470763A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236725A (en) * | 2010-04-26 | 2011-11-09 | 鸿富锦精密工业（深圳）有限公司 | Part de-rating design system and method |
| CN102236725B (en) * | 2010-04-26 | 2014-02-19 | 鸿富锦精密工业（深圳）有限公司 | Part de-rating design system and method |
| CN105160082A (en) * | 2015-08-17 | 2015-12-16 | 加弘科技咨询(上海)有限公司 | Electronic circuit recycling and verifying method |
| CN109815468A (en) * | 2018-12-27 | 2019-05-28 | 西南技术物理研究所 | A kind of component design of Reducing Rating report automatic generation method |
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