CN101055643B - An image generator and method and system for chip validation - Google Patents
An image generator and method and system for chip validation Download PDFInfo
- Publication number
- CN101055643B CN101055643B CN200710098723XA CN200710098723A CN101055643B CN 101055643 B CN101055643 B CN 101055643B CN 200710098723X A CN200710098723X A CN 200710098723XA CN 200710098723 A CN200710098723 A CN 200710098723A CN 101055643 B CN101055643 B CN 101055643B
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- image
- chip
- circuit board
- sensor
- programming device
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000010200 validation analysis Methods 0.000 title 1
- 238000012795 verification Methods 0.000 claims abstract description 30
- 238000012360 testing method Methods 0.000 claims abstract description 23
- 238000005070 sampling Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Images
Abstract
The invention discloses an image generator, comprising: a programmable device for producing the image for test; and a system interface for output the image produced by the programmable device to a verification circuit board of chip. The invention also discloses a system and method for carrying out the verification of chip. The system comprises an image generator and a verification circuit board of chip. The method includes the steps that: the image generator is connected with the verification circuit board of chip through the system interface, and is connected with a sensor circuit board of image sensor through a sensor interface when needing; the image generator outputs the image for test to give the verification circuit board of chip; the image is outputed by the programmable device in the image generator, or obtained by the image sensor; according to the image outputted by the image generator, the verification of chip is carried out. Using the project of the invention, the lacking of the sensor sampling can be relieved, and the effect of the sensor circuit board for debuging system may be reduced; the chip can sufficiently be verified.
Description
Technical field
The present invention relates to image sensor chip, be specifically related to a kind of image generator and carry out the method and system of chip checking.
Background technology
In the exploitation proof procedure of the chip that requires to support multiple imageing sensor, need in market, obtain the imageing sensor of required various models according to design requirement, existing image input scheme is, be sensor circuit board of each image sensor design, the interface of this circuit board need cooperate consistent with the verification environment of chip.As shown in Figure 1, imageing sensor links to each other with verification circuit board of chip by circuit board, thereby image is transferred to the chip that will verify.
Prior art has following shortcoming: (1) need obtain the print of each imageing sensor, and needs sufficient amount, to satisfy the testing authentication needs; (2) different sensors need different circuit boards, cause the design of circuit board and debug loaded down with trivial details consuming timely, and circuit board may be that new different problem is introduced in the debugging of system; (3) perhaps output timing can't appear in the specific image of proof procedure needs in common sensor, can't fully effectively finish chip checking.
Summary of the invention
At above-mentioned deficiency, the purpose of this invention is to provide a kind of image generator, make checking not rely on the quantity of imageing sensor print, and make checking more flexible.
Described image generator is characterized in that, comprising: programming device, comprise a DLL (dynamic link library), and be used to produce the image of test usefulness; And system interface, be used for the image that is received is exported to verification circuit board of chip;
Described image generator also comprises: sensor interface and selected cell;
Described sensor interface links to each other with sensor circuit board, is used for the image of imageing sensor output is sent to described selected cell;
Described programming device sends to described selected cell with the image that is produced;
Described selected cell links to each other with described programming device with described sensor interface, is used to select one of them image that sends and sends to system interface.
Further, described image generator also comprises: image storage unit is used to store the image that programming device produces;
Described programming device sends to described selected cell or image storage unit with the image that is produced, and also is used for reading the test pattern of storage and sending to selected cell from image storage unit.
Further, the image of described programming device generation test usefulness is meant the databook according to the specific model imageing sensor, produces the image that meets true sequential; Or produce in the specific image perhaps interface sequence according to demand.
Another object of the present invention provides a kind of system that carries out chip checking, can make checking not rely on the quantity of imageing sensor print, and make checking more flexible.
The described system that carries out chip checking is characterized in that, comprising:
Image generator comprises a DLL (dynamic link library), is used to produce image, and the image of generation or the image of reception are exported to verification circuit board of chip;
Described verification circuit board of chip is used for according to the image of input chip being verified.
Further, the described system that carries out chip checking also comprises the sensor circuit board that is connected to imageing sensor, is used to produce specific image and exports to described image generator;
Described image generator is exported to described verification circuit board of chip with the image of described sensor circuit board input or the image that itself produces.
Further, described image generator comprises programming device, comprises described DLL (dynamic link library), is used to produce the image of test usefulness; And
System interface is used for the image that described programming device produces is exported to verification circuit board of chip.
Further, described image generator also comprises sensor interface and selected cell;
Described sensor interface links to each other with sensor circuit board, is used for the image of imageing sensor output is sent to described selected cell;
Described programming device sends to described selected cell with the image that is produced;
Described selected cell links to each other with described programming device with described sensor interface, is used to select one of them image that sends and sends to system interface.
Further, described image generator also comprises image storage unit, is used to store the image that programming device produces;
Described programming device sends to described selected cell or image storage unit with the image that is produced, and also is used for reading the test pattern of storage and sending to selected cell from image storage unit.
Further, the image of described programming device generation test usefulness is meant the databook according to the specific model imageing sensor, produces the image that meets true sequential; Or produce in the specific image perhaps interface sequence according to demand.
Another purpose of the present invention provides a kind of method of carrying out chip checking, can make checking not rely on the quantity of imageing sensor print, and make checking more flexible.
Described method of carrying out chip checking comprises:
A, image generator is connected with verification circuit board of chip by system interface; Also be connected with the sensor circuit board of imageing sensor when also using imageing sensor need be the time by sensor interface at chip checking;
The image of B, image generator output test usefulness is given verification circuit board of chip; Described image is exported by the programming device that comprises a DLL (dynamic link library) in the image generator, or is obtained by imageing sensor;
C, the image of exporting according to image generator carry out the checking of chip.
Further, among the described step B: programming device is directly exported the image that produces; Or produce image in advance and it is stored in the storage unit, from image storage unit, read the test pattern of storage then and according to specific sequential output.
The solution of the present invention has the following advantages: (1) can simulate and produce various imageing sensors, lacks thereby alleviate the sensor print, and will be the problem of each sensor design circuit board; (2) reduce owing to of the influence of sensor circuit board self problem system debug; (3) can simulate generation specific picture material and sequential, proofing chip more fully; (4) can compatible existing switching circuit board, can in system debug, continue to use existing imageing sensor, and can select easily.
Description of drawings
Fig. 1 is the connection diagram of imageing sensor in the prior art, circuit board and chip;
Fig. 2 is the synoptic diagram of image generator of the present invention;
Fig. 3 is the synoptic diagram that carries out the system of chip checking of the present invention.
Embodiment
Below in conjunction with drawings and Examples technical scheme of the present invention is described in detail.
The invention provides a kind of image generator, as shown in Figure 2, comprising: programming device, image storage unit, selected cell, system interface and sensor interface.
Described programming device is used for the databook according to the specific model imageing sensor, generation meets the image of the test usefulness of true sequential, and the image that is produced sent to described selected cell or image storage unit, also be used for reading the test pattern of storage and sending to selected cell according to specific sequential from image storage unit; This programming device comprises a DLL (dynamic link library), is used to realize user program.
According to verification system suitable programming device is selected in the requirement of scale and speed.
Described programming device can produce in the specific image perhaps interface sequence according to demand.
Described image storage unit is used to store the image that programming device produces.
Described sensor interface links to each other with sensor circuit board, is used for the image of imageing sensor output is sent to described selected cell.
Described selected cell links to each other with described programming device with described sensor interface, is used to select one of them image that sends and sends to system interface.
Described system interface is used for the image that selected cell sends is exported to verification circuit board of chip; Consistent in this system interface and the prior art.
It is the circuit board of core that image generator of the present invention adopts with the programming device, realize system interface with existing prototype verification system compatible, keep interface with existing sensor circuit board, can select easily is imageing sensor with common, and still the image that produces with the programming device simulation is exported to system.
The present invention also provides a kind of system that carries out chip checking, as shown in Figure 3, comprises above-mentioned image generator, verification circuit board of chip and is connected to the sensor circuit board of imageing sensor.
The described sensor circuit board that is connected to imageing sensor is used to produce specific image and exports to described image generator.
Described image generator is used to produce image, and selects one and export to described verification circuit board of chip in the image of image that produces or the input of described sensor circuit board.Its concrete structure is the same.
Described verification circuit board of chip is used for according to the image of input chip being verified.
The present invention also provides a kind of method of utilizing above-mentioned image generator to carry out chip checking, may further comprise the steps:
A, image generator is connected with verification circuit board of chip by system interface; When needed---in the time of promptly need when chip checking, also using existing imageing sensor, can also be connected with the sensor circuit board of imageing sensor by sensor interface.
The image of B, image generator output test usefulness is given verification circuit board of chip.
This image is exported by the programming device in the image generator, or is obtained by imageing sensor;
Programming device can directly be exported the image that produces; Also can produce image earlier and it is stored in the storage unit, from image storage unit, read the test pattern of storage when needed again and according to specific sequential output.
Programming device both can be according to the databook of specific model imageing sensor, and programming produces the image that meets true sequential, also can be according to specific needs, produce in the specific image perhaps interface sequence.
C, the image of exporting according to image generator carry out the checking of chip.
Claims (11)
1. an image generator is characterized in that, comprising: sensor interface and selected cell;
Programming device comprises a DLL (dynamic link library), is used to produce the image of test usefulness, sends to described selected cell; System interface, be used for received image export to verification circuit board of chip;
Described sensor interface links to each other with sensor circuit board, is used for the image of imageing sensor output is sent to described selected cell;
Described selected cell links to each other with described programming device with described sensor interface, is used to select one of them image that sends and sends to system interface.
2. image generator as claimed in claim 1 is characterized in that, also comprises: image storage unit is used to store the image that programming device produces;
Described programming device sends to described selected cell or image storage unit with the image that is produced, and also is used for reading the test pattern of storage and sending to selected cell from image storage unit.
3. image generator as claimed in claim 1 is characterized in that: the image of described programming device generation test usefulness is meant the databook according to the specific model imageing sensor, produces the image that meets true sequential; Or produce in the specific image perhaps interface sequence according to demand.
4. a system that carries out chip checking is characterized in that, comprising:
Image generator comprises a DLL (dynamic link library), is used to produce image, and the image of generation or the image of reception are exported to verification circuit board of chip;
Described verification circuit board of chip is used for according to the image of input chip being verified.
5. system as claimed in claim 4 is characterized in that: also comprise the sensor circuit board that is connected to imageing sensor, be used to produce specific image and export to described image generator;
Described image generator is exported to described verification circuit board of chip with the image of described sensor circuit board input or the image that itself produces.
6. system as claimed in claim 4 is characterized in that: described image generator comprises programming device, comprises described DLL (dynamic link library), is used to produce the image of test usefulness; And
System interface is used for the image that described programming device produces is exported to verification circuit board of chip.
7. system as claimed in claim 6 is characterized in that: described image generator also comprises sensor interface and selected cell;
Described sensor interface links to each other with sensor circuit board, is used for the image of imageing sensor output is sent to described selected cell;
Described programming device sends to described selected cell with the image that is produced;
Described selected cell links to each other with described programming device with described sensor interface, is used to select one of them image that sends and sends to system interface.
8. system as claimed in claim 7 is characterized in that: described image generator also comprises image storage unit, is used to store the image that programming device produces;
Described programming device sends to described selected cell or image storage unit with the image that is produced, and also is used for reading the test pattern of storage and sending to selected cell from image storage unit.
9. system as claimed in claim 6 is characterized in that: the image of described programming device generation test usefulness is meant the databook according to the specific model imageing sensor, produces the image that meets true sequential; Or produce in the specific image perhaps interface sequence according to demand.
10. method of carrying out chip checking comprises:
A, image generator is connected with verification circuit board of chip by system interface; And be connected with the sensor circuit board of imageing sensor by sensor interface when also using imageing sensor need be the time at chip checking;
The image of B, image generator output test usefulness is given verification circuit board of chip; Described image is exported by the programming device that comprises a DLL (dynamic link library) in the image generator, or is obtained by imageing sensor;
C, the image of exporting according to image generator carry out the checking of chip.
11. method as claimed in claim 10 is characterized in that, among the described step B: programming device is directly exported the image that produces; Or produce image in advance and it is stored in the storage unit, from image storage unit, read the test pattern of storage then and according to specific sequential output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710098723XA CN101055643B (en) | 2007-04-25 | 2007-04-25 | An image generator and method and system for chip validation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710098723XA CN101055643B (en) | 2007-04-25 | 2007-04-25 | An image generator and method and system for chip validation |
Publications (2)
| Publication Number | Publication Date |
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| CN101055643A CN101055643A (en) | 2007-10-17 |
| CN101055643B true CN101055643B (en) | 2010-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710098723XA Expired - Fee Related CN101055643B (en) | 2007-04-25 | 2007-04-25 | An image generator and method and system for chip validation |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102647611A (en) * | 2011-02-18 | 2012-08-22 | 安凯(广州)微电子技术有限公司 | Chip camera interface function testing method and chip camera interface function testing system |
| CN105161139B (en) * | 2015-08-26 | 2018-05-25 | 硅谷数模半导体（北京）有限公司 | Test system, the method and device of electronic chip |
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