CN103019950B - The space allocation method of One Time Programmable chip, using method, and device - Google Patents
The space allocation method of One Time Programmable chip, using method, and device Download PDFInfo
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Abstract
The embodiment of the invention discloses the space allocation method of One Time Programmable chip, using method, and device.Wherein method comprises: the storage space obtaining One Time Programmable chip OTP; According to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, write in the presumptive address space of described storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set.The parameter item adopting such scheme can determine to write and order thereof and address, and can find these parameters easily by burn mark bit, thus enable the various OTP of burning compatible.
Description
Technical field
The present invention relates to electronic technology field, particularly a kind of space allocation method, using method of One Time Programmable chip, and device.
Background technology
Along with the fast development of mobile phone camera, to video effect and coherence request more and more higher, and single camera module hardware also cannot be accomplished completely the same, therefore need to carry out some effect rectification to single module, particularly need to carry out white balance (WhiteBalance, WB), camera lens rectification etc.
One Time Programmable chip (Onetimeprogramme, OTP), refer to that have can only the chip of burning memory headroom once, this chip can deposit different-effect parameter as requested.
General by depositing essential information and correction parameter in OTP at present, essential information is for describing the essential information of camera lens, module etc., and correction parameter is the parameter for correcting camera module.
Inventor finds in the process realizing the embodiment of the present invention, and the allocation of space of current OTP is chaotic and adopt in differing order and different storage modes, causes the OTP of various burning cannot be compatible.
Summary of the invention
Embodiments provide a kind of space allocation method, using method of One Time Programmable chip, and device, enable the various OTP of burning compatible.
A space allocation method for One Time Programmable chip, comprising:
Obtain the storage space of One Time Programmable chip OTP;
According to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, write in the presumptive address space of described storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set.
A using method for One Time Programmable chip, comprising:
Obtain the presumptive address space of the storage space of One Time Programmable chip;
Determining whether as burn mark bit according to the order from a high position to low level, if so, then the correction parameter in page address space, described burning zone bit place being read, for correcting the camera module corresponding with described correction parameter;
The corresponding described essential information of camera module and the every of correction parameter, be according to predefined procedure and address low level to the order of a high position, write successively in the presumptive address space of described storage space.
An allocation of space device for One Time Programmable chip, comprising:
Space acquiring unit, for obtaining the storage space of One Time Programmable chip OTP;
Burning unit, for according to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, write in the presumptive address space of described storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set.
An operative installations for One Time Programmable chip, comprising:
Address acquisition unit, for obtaining the presumptive address space of the storage space of One Time Programmable chip;
Reading unit, for determining whether as burn mark bit according to the order from a high position to low level, if so, then reads the correction parameter in page address space, described burning zone bit place, for correcting the camera module corresponding with described correction parameter; The corresponding described essential information of camera module and the every of correction parameter, be according to predefined procedure and address low level to the order of a high position, write successively in the presumptive address space of described storage space.
As can be seen from the above technical solutions, the embodiment of the present invention has the following advantages: according to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, write in the presumptive address space of storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set; So can determine the parameter item that writes and order thereof and address, and these parameters can be found easily by burn mark bit, thus enable the various OTP of burning compatible.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly introduced, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is embodiment of the present invention method flow schematic diagram;
Fig. 2 is embodiment of the present invention other method schematic flow sheet;
Fig. 3 is embodiment of the present invention apparatus structure schematic diagram;
Fig. 4 is another apparatus structure schematic diagram of the embodiment of the present invention.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, the present invention is described in further detail, and obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of space allocation method of One Time Programmable chip, as shown in Figure 1, comprising:
101: the storage space obtaining One Time Programmable chip OTP;
Whether the process that this step obtains storage space only just can determine that whether the follow-up presumptive address space that will use is complete, or exist, or is in serviceable condition.Storage space will have concrete example in subsequent embodiment.
102: according to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, write in the presumptive address space of above-mentioned storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set.
Subsequent embodiment is illustrated to the essential information of camera module.
Embodiment of the present invention scheme, according to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, writes in the presumptive address space of storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set; So can determine the parameter item that writes and order thereof and address, and these parameters can be found easily by burn mark bit, thus enable the various OTP of burning compatible.
More specifically, above-mentioned correction parameter comprises: Automatic white balance (Automaticwhitebalance, AWB) parameter, camera lens shadow correction (LensShadingCorrection, LSC) parameter, auto-focusing (AutoFocus, AF) parameter.In subsequent embodiment, the item that may comprise each parameter is carried out concrete example explanation.It should be noted that, the citing of the correction parameter of the present embodiment citing is not that camera corrects the exhaustive of the correction parameter that may need, the restriction that should not be construed as the embodiment of the present invention of therefore illustrating above.
Alternatively, the essential information of above-mentioned camera module, Automatic white balance AWB parameter and camera lens shadow correction LSC parameter are stored in the front end in above-mentioned presumptive address space, and arrange the first predetermined burn mark bit at end.Alternatively, above-mentioned auto-focusing AF parameter is stored in the precalculated position rearward, front end in above-mentioned presumptive address space, and arranges the second predetermined burn mark bit at end.Subsequent embodiment is described in detail to the concrete location mode of parameters.
The embodiment of the present invention additionally provides a kind of using method of One Time Programmable chip, as shown in Figure 2, comprising:
201: the presumptive address space obtaining the storage space of One Time Programmable chip;
This step is only as the pre-operation before reading, and to determine that predetermined address space exists, or can read state.Will there be concrete example in presumptive address space in subsequent embodiment.
202: determine whether as burn mark bit according to the order from a high position to low level, if so, then the correction parameter in page address space, above-mentioned burning zone bit place is read, for correcting the camera module corresponding with above-mentioned correction parameter;
The corresponding above-mentioned essential information of camera module and the every of correction parameter, be according to predefined procedure and address low level to the order of a high position, write successively in the presumptive address space of above-mentioned storage space.
Embodiment of the present invention scheme, according to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, writes in the presumptive address space of storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set; So can determine the parameter item that writes and order thereof and address, and these parameters can be found easily by burn mark bit, thus enable the various OTP of burning compatible.
More specifically, above-mentioned correction parameter comprises: Automatic white balance AWB parameter, camera lens shadow correction LSC parameter, auto-focusing AF parameter; In subsequent embodiment, the item that may comprise each parameter is carried out concrete example explanation.It should be noted that, the citing of the correction parameter of the present embodiment citing is not that camera corrects the exhaustive of the correction parameter that may need, the restriction that should not be construed as the embodiment of the present invention of therefore illustrating above.
The essential information of above-mentioned camera module, Automatic white balance AWB parameter and camera lens shadow correction LSC parameter are stored in the front end in above-mentioned presumptive address space, and arrange the first predetermined burn mark bit at end; Above-mentioned auto-focusing AF parameter is stored in the precalculated position rearward, front end in above-mentioned presumptive address space, and arranges the second predetermined burn mark bit at end;
Above-mentionedly determine whether, into burn mark bit, to comprise according to the order from a high position to low level: determine whether to be the first burn mark bit or the second burn mark bit according to the order from a high position to low level.
Allocation of space with regard to Aptina sensitive chip (Sensor) OTP is illustrated with utilization flow process by the present embodiment, following citing goes for AptinaSensorA8140, A8141, A5140, A5141 etc., also go for chip similar with it, the concrete application chip embodiment of the present invention will not limit.Below and flow process two parts will be used to be described respectively with regard to OTP Memory Allocation.
One, OTP Memory Allocation: distribute OTP internal memory according to sequence of addresses:
1, camera module essential information: comprising: camera module Production Time (certain year. certain moon. one day, account for 4 bytes), module factory information (accounting for 1 or 2 bytes), shot information (accounting for 1 or 2 bytes), motor information (accounting for 1 or 2 bytes), motor driving chip information (accounting for 1 or 2 bytes), burning environment color temperature information (accounting for 1 or 2 bytes).
2, WB(white balance) parameter: comprising: the ratio of current module R/Gr(red red and the green green that goes together), the ratio of B/Gr(blue blue and the green green that goes together), the green green of Gb/Gr(blueness colleague and the ratio of the red green green gone together); Representative value module R, B, Gr, Gb; Current module R, B, Gr, Gb.Take up space altogether (22 bytes or 11 bytes).
3, parameter corrected by camera lens: due to camera lens, the characteristics such as the lenticule on chip, picture four corners can be made obviously dark than center deviation, and the phenomenon such as picture color is uneven, in order to complement this problem, need to carry out camera lens rectification by software, again owing to there is consistency problem between different module, so complementing of can not carrying out very well all modules of same set of parameter, so need to correct single module, therefore need this parameter of OTP allocation of space.Different sensitive chip Sensor, rectification parameter is different, so allocation space size is also different.
4, OTP burn mark bit can use value be 0xffff, and 16 system 0xffff=65535,0xff=255, the OTP value that 4 byte 2 bytes (or 0xff) represent this page address of OTP is effective.
5, AF(auto-focusing) parameter: due to AF test environment and WB parameter and camera lens, to correct test environment different, so be difficult to realize with a post burning OTP in module factory, for AF burning, the out burning of independent post can be adopted, so general AF=AutoFocus, auto-focusing AF parameter is spatially distributed at OTP, is independent page address.AF parameter includes but not limited to: distant view motor position, close shot motor position, motor reference position.
Here is a citing of the OTP allocation of space of Aptina sensitive chip, specifically refers to table 1, table 2 and table 3.
Table 1 identify label (Identity, ID), AWB burning
Table 2LSC burning
Table 3AF burning
| Light source: | Type(page address): | |
| 5100K | 0x3600to0x3B00 | |
| Address | data | Explanation |
| 0x3800 | AF Pos infinity(3m) | AF infinity AF |
| 0x3802 | AF Pos Macro(10cm) | AF Macro AF |
| 0x3804 | Deposit 7.5 ± 2.5um AF | |
| 0x3806 | 0xFFFF | Burning zone bit |
Two, OTP uses flow process: in order to judge that whether whether the data of module inside burning OTP or OTP effective, so when utilization OTP, read OTP data according to predetermined flow process.Different Sensor(sensitive chip), OTP space characteristic may be different, and the SensorOTP of the chip of the models such as AptinaSensorA8140, A8141, A5140, A5141 and identical category uses flow process, can with reference to following scheme:
1, read correct data TYPE(page address) flow process:
According to the citing of table 1 ~ 3, WB, ID, LSC deposit TYPE:0x3000 ~ 3500, and AF parameter deposits TYPE:0x3600 ~ 0x3B00, and so this step is specifically as follows:
From TYPE3500, judge that whether the data of TYPE are effective successively, if effectively, read the data in this effective TYPE, otherwise judge that whether the data of next low level TYPE are effective, until find the TYPE depositing valid data.
2, TYPE data validity determination methods:
According to the citing of table 1 ~ 3, burning zone bit is 0xFFFF, and so this step is specifically as follows:
Read toward low TYPE from high TYPE, judge whether 0x38FC=0xFFFF and 0x384AB [6]=1 sets up, if set up, determine that effective deposit data is in this TYPE, low TYPE data invalid; Judge whether 0x38FC unequal to 0xffff or 0x384AB [6]=0 sets up, if set up, determine that this TYPE does not have burning or invalid, need to read low TYPE data.
The embodiment of the present invention additionally provides a kind of allocation of space device of One Time Programmable chip, and this device can be the arbitrary equipment of OTP being carried out to burning, and concrete equipment is that what embodiment of the present invention will not limit, and as shown in Figure 3, comprising:
Space acquiring unit 301, for obtaining the storage space of One Time Programmable chip OTP;
Burning unit 302, for according to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, write in the presumptive address space of above-mentioned storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set.
Embodiment of the present invention scheme, according to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, writes in the presumptive address space of storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set; So can determine the parameter item that writes and order thereof and address, and these parameters can be found easily by burn mark bit, thus enable the various OTP of burning compatible.
More specifically, above-mentioned correction parameter comprises: Automatic white balance AWB parameter, camera lens shadow correction LSC parameter, auto-focusing AF parameter;
Above-mentioned burning unit 302, specifically for the essential information of above-mentioned camera module, Automatic white balance AWB parameter and camera lens shadow correction LSC parameter being stored in the front end in above-mentioned presumptive address space, and arranges the first predetermined burn mark bit at end; Above-mentioned auto-focusing AF parameter is stored in the precalculated position rearward, front end in above-mentioned presumptive address space, and the second predetermined burn mark bit is set at end.
The embodiment of the present invention additionally provides a kind of operative installations of One Time Programmable chip, this operative installations can be any device needing reading OTP intrinsic parameter to correct camera module, and such as camera etc., will not limit this embodiment of the present invention, as shown in Figure 4, comprising:
Address acquisition unit 401, for obtaining the presumptive address space of the storage space of One Time Programmable chip;
Reading unit 402, for determining whether as burn mark bit according to the order from a high position to low level, if so, then reads the correction parameter in page address space, above-mentioned burning zone bit place, for correcting the camera module corresponding with above-mentioned correction parameter; The corresponding above-mentioned essential information of camera module and the every of correction parameter, be according to predefined procedure and address low level to the order of a high position, write successively in the presumptive address space of above-mentioned storage space.
Embodiment of the present invention scheme, according to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, writes in the presumptive address space of storage space successively; And write essential information and or the end of correction parameter predetermined burn mark bit is set; So can determine the parameter item that writes and order thereof and address, and these parameters can be found easily by burn mark bit, thus enable the various OTP of burning compatible.
More specifically, above-mentioned correction parameter comprises: Automatic white balance AWB parameter, camera lens shadow correction LSC parameter, auto-focusing AF parameter; The essential information of above-mentioned camera module, Automatic white balance AWB parameter and camera lens shadow correction LSC parameter are stored in the front end in above-mentioned presumptive address space, and arrange the first predetermined burn mark bit at end; Above-mentioned auto-focusing AF parameter is stored in the precalculated position rearward, front end in above-mentioned presumptive address space, and arranges the second predetermined burn mark bit at end;
Above-mentioned reading unit 402, is specially into burn mark bit for determining whether according to the order from a high position to low level: determine whether to be the first burn mark bit or the second burn mark bit according to the order from a high position to low level.
It should be noted that in said apparatus embodiment, included unit is carry out dividing according to function logic, but is not limited to above-mentioned division, as long as can realize corresponding function; In addition, the concrete title of each functional unit, also just for the ease of mutual differentiation, is not limited to protection scope of the present invention.
In addition, one of ordinary skill in the art will appreciate that all or part of step realized in above-mentioned each embodiment of the method is that the hardware that can carry out instruction relevant by program completes, corresponding program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium mentioned can be ROM (read-only memory), disk or CD etc.
These are only the present invention's preferably embodiment; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the embodiment of the present invention discloses, the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (6)
1. a space allocation method for One Time Programmable chip, is characterized in that, comprising:
Obtain the storage space of One Time Programmable chip OTP;
According to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, write in the presumptive address space of described storage space successively; Wherein, described correction parameter comprises:
Automatic white balance AWB parameter, camera lens shadow correction LSC parameter, auto-focusing AF parameter; The essential information of described camera module, Automatic white balance AWB parameter and camera lens shadow correction LSC parameter are stored in the front end in described presumptive address space, and arrange the first predetermined burn mark bit at end; Described auto-focusing AF parameter is stored in the precalculated position rearward, front end in described presumptive address space, and arranges the second predetermined burn mark bit at end; Wherein, whether described burn mark bit is effective for representing the OTP value of OTP current page address.
2. a using method for One Time Programmable chip, is characterized in that, comprising:
Obtain the presumptive address space of the storage space of One Time Programmable chip;
Determining whether as burn mark bit according to the order from a high position to low level, if so, then the correction parameter in page address space, described burn mark bit place being read, for correcting the camera module corresponding with described correction parameter;
The corresponding described essential information of camera module and the every of correction parameter, be according to predefined procedure and address low level to the order of a high position, write in the presumptive address space of described storage space successively;
Wherein, whether described burn mark bit is effective for representing the OTP value of OTP current page address.
3. method according to claim 2, it is characterized in that, described correction parameter comprises: Automatic white balance AWB parameter, camera lens shadow correction LSC parameter, auto-focusing AF parameter;
The essential information of described camera module, Automatic white balance AWB parameter and camera lens shadow correction LSC parameter are stored in the front end in described presumptive address space, and arrange the first predetermined burn mark bit at end; Described auto-focusing AF parameter is stored in the precalculated position rearward, front end in described presumptive address space, and arranges the second predetermined burn mark bit at end;
Describedly determine whether, into burn mark bit, to comprise according to the order from a high position to low level:
Determine whether to be the first burn mark bit or the second burn mark bit according to the order from a high position to low level.
4. an allocation of space device for One Time Programmable chip, is characterized in that, comprising:
Space acquiring unit, for obtaining the storage space of One Time Programmable chip OTP;
Burning unit, for according to predefined procedure and address low level to high-order order, by the corresponding essential information of camera module and the every of correction parameter, write in the presumptive address space of described storage space successively; Wherein, described correction parameter comprises: Automatic white balance AWB parameter, camera lens shadow correction LSC parameter, auto-focusing AF parameter;
Described burning unit, specifically for the essential information of described camera module, Automatic white balance AWB parameter and camera lens shadow correction LSC parameter being stored in the front end in described presumptive address space, and arranges the first predetermined burn mark bit at end; Described auto-focusing AF parameter is stored in the precalculated position rearward, front end in described presumptive address space, and the second predetermined burn mark bit is set at end; Wherein, whether described burn mark bit is effective for representing the OTP value of OTP current page address.
5. an operative installations for One Time Programmable chip, is characterized in that, comprising:
Address acquisition unit, for obtaining the presumptive address space of the storage space of One Time Programmable chip;
Reading unit, for determining whether as burn mark bit according to the order from a high position to low level, if so, then reads the correction parameter in page address space, described burn mark bit place, for correcting the camera module corresponding with described correction parameter; The corresponding described essential information of camera module and the every of correction parameter, be according to predefined procedure and address low level to the order of a high position, write in the presumptive address space of described storage space successively;
Wherein, whether described burn mark bit is effective for representing the OTP value of OTP current page address.
6. device according to claim 5, it is characterized in that, described correction parameter comprises: Automatic white balance AWB parameter, camera lens shadow correction LSC parameter, auto-focusing AF parameter; The essential information of described camera module, Automatic white balance AWB parameter and camera lens shadow correction LSC parameter are stored in the front end in described presumptive address space, and arrange the first predetermined burn mark bit at end; Described auto-focusing AF parameter is stored in the precalculated position rearward, front end in described presumptive address space, and arranges the second predetermined burn mark bit at end;
Described reading unit, is specially into burn mark bit for determining whether according to the order from a high position to low level: determine whether to be the first burn mark bit or the second burn mark bit according to the order from a high position to low level.
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| CN105681680A (en) * | 2016-02-22 | 2016-06-15 | 信利光电股份有限公司 | Image vignetting correction method, device and system |
| WO2018119554A1 (en) * | 2016-12-26 | 2018-07-05 | 上海传英信息技术有限公司 | Camera control method for intelligent terminal |
| CN111050158B (en) * | 2019-12-24 | 2021-11-02 | 惠州市德赛西威智能交通技术研究院有限公司 | Camera module correction method and device and storage medium |
| CN113778471A (en) * | 2021-09-10 | 2021-12-10 | 昆山丘钛微电子科技股份有限公司 | Camera module burning method and device and readable storage medium |
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Address after: 516600 Guangdong Industrial Zone, Shanwei City Road, Lee Lee Industrial City, a district of the building fifteenth Applicant after: Truly Opto-Electronics Ltd. Address before: 516600 Guangdong Industrial Zone, Shanwei City Road, Lee Lee Industrial City, a district of the building fifteenth Applicant before: Truly Semiconductors (Shanwei) Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: TRULY OPTO-ELECTRONICS LIMITED TO: TRULY OPTO-ELECTRONICS LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |