CN104579512B - A kind of bluetooth frequency deviation adjusting method and device - Google Patents
A kind of bluetooth frequency deviation adjusting method and device Download PDFInfo
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- CN104579512B CN104579512B CN201510036974.XA CN201510036974A CN104579512B CN 104579512 B CN104579512 B CN 104579512B CN 201510036974 A CN201510036974 A CN 201510036974A CN 104579512 B CN104579512 B CN 104579512B
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Abstract
The invention provides a kind of bluetooth frequency deviation adjusting method and device, belong to Bluetooth chip testing field.In the present invention, the initial frequency deviation of Bluetooth chip is set first, then the tranmitting frequency value to the Bluetooth chip is detected, frequency deviation value is obtained further according to target frequency value, initial frequency offset value and the tranmitting frequency value, and the Bluetooth chip is adjusted finally according to the frequency deviation value.The present invention improves bluetooth frequency deviation regulation efficiency by the bluetooth frequency deviation adjusting method and device.
Description
Technical field
The present invention relates to Bluetooth chip testing field, more particularly to a kind of bluetooth frequency deviation adjusting method and device.
Background technology
There is a critically important project to be exactly the frequency deviation test of chip and adjust in existing Bluetooth chip test.In order that
Bluetooth transmission information can normally be received by terminal, recognized, the frequency of Bluetooth chip need to be made to reach a fixation frequency deviation adjustment
Value；And because every piece of chip is not identical, so needing to be tested the crystal oscillator frequency deviation of every piece of bluetooth before dispatching from the factory
Adjustment；General method of testing is：The information of bluetooth is read first；Then operated using kit, adjust bluetooth
Frequency deviation is simultaneously launched, and another side receives transmission signal using frequency spectrograph and contrasted with required frequency, and adjustment one every time is consolidated
Fixed value, so as to reach the purpose of adjustment bluetooth frequency deviation.
Work is changed and write to existing this test mode, it is necessary to which producing line staff carries out multiple frequency deviation, and
Due to the self-defect of kit, need replacement (Reset) that the effect of frequency deviation modification, Er Qiecong could be realized after write-in every time
It is written to and reflects that effect needs a period of time grown very much in frequency spectrograph, probably accounts for the 50% of a testing time, production efficiency
It is very low.
The content of the invention
The invention provides a kind of bluetooth frequency deviation adjusting method and device, bluetooth frequency deviation regulation efficiency is improved.
On the one hand, the invention provides a kind of bluetooth frequency deviation adjusting method, methods described includes：
Set the initial frequency deviation of Bluetooth chip；
Tranmitting frequency value to the Bluetooth chip is detected；
Frequency deviation value is obtained according to target frequency value, initial frequency offset value and the tranmitting frequency value；
The Bluetooth chip is adjusted according to the frequency deviation value.
Second aspect, the invention provides a kind of bluetooth frequency deviation adjusting means, described device includes：
Setting module, the initial frequency deviation for setting Bluetooth chip；
Detection module, is detected for the tranmitting frequency value to the Bluetooth chip；
Acquisition module, for obtaining frequency deviation value according to target frequency value, initial frequency offset value and the tranmitting frequency value；
Adjustment module, for adjusting the Bluetooth chip according to the frequency deviation value.
In the present invention, due to setting the initial frequency deviation of Bluetooth chip first, then to the tranmitting frequency value of Bluetooth chip
Detected, frequency deviation value is obtained further according to target frequency value, initial frequency offset value and tranmitting frequency value, adjusted finally according to frequency deviation value
Bluetooth chip, efficiency is adjusted this improves bluetooth frequency deviation.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, makes required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, other can also be obtained according to these accompanying drawings
Accompanying drawing.
Fig. 1 is a kind of flow chart of bluetooth frequency deviation adjusting method that the embodiment of the present invention one is provided；
Fig. 2 is a kind of structural representation of bluetooth frequency deviation adjusting means that the embodiment of the present invention two is provided.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to embodiment party of the present invention
Formula is described in further detail.
Embodiment one：
The embodiment of the present invention one provides a kind of bluetooth frequency deviation adjusting method, and referring to Fig. 1, bluetooth frequency deviation adjusting method includes
Following steps：
101. set the initial frequency deviation of Bluetooth chip.
102. the tranmitting frequency value of pair Bluetooth chip is detected.
103. frequency deviation value is obtained according to target frequency value, initial frequency offset value and tranmitting frequency value.
104. Bluetooth chip is adjusted according to frequency deviation value.
Tranmitting frequency value to Bluetooth chip is detected specially：Pass through tranmitting frequency value of the frequency spectrograph to Bluetooth chip
Detected.
Adjusting Bluetooth chip according to frequency deviation value is specially：Frequency deviation value is write into Bluetooth chip.
Obtaining frequency deviation value according to target frequency value, initial frequency offset value and tranmitting frequency value is specially：By target frequency value, just
Beginning frequency deviation value and tranmitting frequency value substitute into mathematical modeling and calculate frequency deviation value, and mathematical modeling is offset=firstFreq-
ActualFreq/nominalFreq*2^20+2^20, wherein, offset is frequency deviation value, and actualFreq is tranmitting frequency value,
NominalFreq is target frequency value, and firstFreq is initial frequency offset value.
For example, when the target frequency of Bluetooth chip is 2441KHz, initial frequency offset value is 0KHz, is detected by frequency spectrograph
Tranmitting frequency to Bluetooth chip is 2440KHz, and frequency deviation value can be calculated for 0.43KHz by being updated to above-mentioned mathematical modeling, most
After will by frequency deviation value 0.43KHz write Bluetooth chip.
The present embodiment by setting the initial frequency deviation of Bluetooth chip first, and then the tranmitting frequency value to Bluetooth chip is carried out
Detection, frequency deviation value is obtained further according to target frequency value, initial frequency offset value and tranmitting frequency value, and bluetooth is adjusted finally according to frequency deviation value
Chip, efficiency is adjusted this improves bluetooth frequency deviation.
Embodiment two：
The embodiment of the present invention two provides a kind of bluetooth frequency deviation adjusting means, as shown in Fig. 2 bluetooth frequency deviation adjusting means 20
Including setting module 210, detection module 220, acquisition module 230 and adjustment module 240.
Setting module 210, the initial frequency deviation for setting Bluetooth chip；
Detection module 220, is detected for the tranmitting frequency value to Bluetooth chip；
Acquisition module 230, for obtaining frequency deviation value according to target frequency value, initial frequency offset value and tranmitting frequency value；
Adjustment module 240, for adjusting Bluetooth chip according to frequency deviation value.
Detection module 220 is detected specially to the tranmitting frequency value of Bluetooth chip：By frequency spectrograph to Bluetooth chip
Tranmitting frequency value detected.
Adjustment module 240 adjusts Bluetooth chip according to frequency deviation value：Frequency deviation value is write into Bluetooth chip.
Acquisition module 230 obtains frequency deviation value according to target frequency value, initial frequency offset value and tranmitting frequency value：By mesh
Mark frequency values, initial frequency offset value and tranmitting frequency value and substitute into mathematical modeling calculating frequency deviation value, mathematical modeling is offset=
FirstFreq-actualFreq/nominalFreq*2^20+2^20, wherein, offset is frequency deviation value, and actualFreq is institute
Tranmitting frequency value is stated, nominalFreq is the target frequency value, and firstFreq is initial frequency offset value.
The present embodiment by setting the initial frequency deviation of Bluetooth chip first, and then the tranmitting frequency value to Bluetooth chip is carried out
Detection, frequency deviation value is obtained further according to target frequency value, initial frequency offset value and tranmitting frequency value, and bluetooth is adjusted finally according to frequency deviation value
Chip, efficiency is adjusted this improves bluetooth frequency deviation.
The embodiments of the present invention are for illustration only, and the quality of embodiment is not represented.
One of ordinary skill in the art will appreciate that realizing that all or part of step of above-described embodiment can be by hardware
To complete, the hardware of correlation can also be instructed to complete by program, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (2)
1. a kind of bluetooth frequency deviation adjusting method, it is characterised in that methods described includes：
Set the initial frequency deviation of Bluetooth chip；
Tranmitting frequency value to the Bluetooth chip is detected；
Frequency deviation value is obtained according to target frequency value, initial frequency offset value and the tranmitting frequency value；
The Bluetooth chip is adjusted according to the frequency deviation value；
It is described to be specially according to the target frequency value, initial frequency offset value and the tranmitting frequency value acquisition frequency deviation value：
Target frequency value, initial frequency offset value and the tranmitting frequency value are substituted into mathematical modeling and calculate frequency deviation value, the mathematical modulo
Type is offset=firstFreq-actualFreq/nominalFreq*2^20+2^20, wherein, offset is the frequency deviation
Value, actualFreq is the tranmitting frequency value, and nominalFreq is the target frequency value, and firstFreq is initial frequency deviation
Value.
2. a kind of bluetooth frequency deviation adjusting means, it is characterised in that described device includes：
Setting module, the initial frequency deviation for setting Bluetooth chip；
Detection module, is detected for the tranmitting frequency value to the Bluetooth chip；
Acquisition module, for obtaining frequency deviation value according to target frequency value, initial frequency offset value and the tranmitting frequency value；
Adjustment module, for adjusting the Bluetooth chip according to the frequency deviation value；
The acquisition module obtains frequency deviation value according to target frequency value, initial frequency offset value and the tranmitting frequency value：
Target frequency value, initial frequency offset value and the tranmitting frequency value are substituted into mathematical modeling and calculate frequency deviation value, the mathematical modulo
Type is offset=firstFreq-actualFreq/nominalFreq*2^20+2^20, wherein, offset is the frequency deviation
Value, actualFreq is the tranmitting frequency value, and nominalFreq is the target frequency value, and firstFreq is initial frequency deviation
Value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510036974.XA CN104579512B (en) | 2015-01-23 | 2015-01-23 | A kind of bluetooth frequency deviation adjusting method and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510036974.XA CN104579512B (en) | 2015-01-23 | 2015-01-23 | A kind of bluetooth frequency deviation adjusting method and device |
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| Publication Number | Publication Date |
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| CN104579512A CN104579512A (en) | 2015-04-29 |
| CN104579512B true CN104579512B (en) | 2017-09-19 |
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| CN201510036974.XA Active CN104579512B (en) | 2015-01-23 | 2015-01-23 | A kind of bluetooth frequency deviation adjusting method and device |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100493224C (en) * | 2006-01-04 | 2009-05-27 | 华为技术有限公司 | Frequency correcting method and device |
| US8254865B2 (en) * | 2006-04-07 | 2012-08-28 | Belair Networks | System and method for frequency offsetting of information communicated in MIMO-based wireless networks |
| CN101267230B (en) * | 2007-03-16 | 2011-08-10 | 德信无线通讯科技（北京）有限公司 | Testing method for Bluetooth RF correction |
| CN101577576B (en) * | 2008-05-09 | 2013-01-23 | 杰脉通信技术(上海)有限公司 | TD-SCDMA terminal initial downlink synchronization method |
| CN101932060A (en) * | 2009-06-19 | 2010-12-29 | 大唐移动通信设备有限公司 | Method, system and apparatus for frequency offset transmission and frequency offset precalibration |
| CN101958744B (en) * | 2009-07-13 | 2013-11-20 | 电信科学技术研究院 | Method and device for pre-calibrating frequency deviation |
| US8369279B2 (en) * | 2010-03-10 | 2013-02-05 | Broadcom Corporation | Method and system for iterative multiple frequency hypothesis testing with cell-ID detection in an E-UTRA/LTE UE receiver |
| CN102651725B (en) * | 2011-02-25 | 2015-01-28 | 中兴通讯股份有限公司 | Multi-user frequency offset compensation method and device |
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Address after: Longgang District of Shenzhen City, Guangdong province 518116 Ping Street Takahashi Industrial Park East Area Applicant after: SHENZHE GUANXU ELECTRONIC CO., LTD. Address before: Longgang District of Shenzhen City, Guangdong province 518116 Ping Street Takahashi Industrial Park East Area Applicant before: Shenzhen Grandsun Electronic Co., Ltd. |
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