CN101931770B - Method for realizing compatibility between software and multiple tuners - Google Patents
Method for realizing compatibility between software and multiple tuners Download PDFInfo
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- CN101931770B CN101931770B CN2010101147857A CN201010114785A CN101931770B CN 101931770 B CN101931770 B CN 101931770B CN 2010101147857 A CN2010101147857 A CN 2010101147857A CN 201010114785 A CN201010114785 A CN 201010114785A CN 101931770 B CN101931770 B CN 101931770B
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- 238000005516 engineering process Methods 0.000 abstract description 3
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Abstract
The invention relates to the compatibility technology and provides a method for realizing compatibility with multiple tuners on DVB software. The method for realizing compatibility between software and multiple tuners comprises the following steps: setting multiple groups of I2C addresses of each tuner so that only one group of I2C addresses of the tuner of each hardware type can be read/written by a software processing module and the read-write group of I2C addresses of the tuner of each hardware type are different from the read-write group of I2C addresses of the tuners of other hardware types; b, reading/writing the multiple groups of I2C addresses one by one by the software processing module, and selecting the hardware type of the tuner corresponding to the normal read/written group of I2C addresses as the current tuner type; and c, running the driver corresponding to the current tuner type by the software processing module. The invention realizes judgment of the current hardware type of the tuner when the tuner ID cannot be read and effectively realizes compatibility between the hardware and various hardware types of the tuners.
Description
Technical field
The present invention relates to compatible technique.
Background technology
The existing market dog-eat-dog, the key components tuner (TUNER) of DVB (DVB) product, upgrade very fast.Often occur on the market stopping production or updating, and also need use other models to replace, and the later stage needs successively to the same product of identical market supply when delivery cycle does not catch up with the product delivery cycle.Cause the hardware state that the tuner of different batches on same market, occurs like this; Need the software more than 2 to support, but, generally all need pass through CA (condition reception), middleware, networking authentication, the authentication of operator market etc. because the entry fee in DVB market is often very high; If use different editions DVB software to different tuners; Need authentication again, pay very high expense, and the expense of later maintenance is also very high.
If can on software, accomplish the tuner of compatible a plurality of different editions, just can save the expense of various authentications and the maintenance cost in later stage.
Usually software to the prerequisite of polytype hardware compatibility is, software can read the ID number hardware with the difference different model of this hardware, thereby the driver that this hardware is provided with being directed against is arranged.But because tuner is special I2C device, its register writes only, not readable, can't read tuner ID number, so also do not find the method for compatible multiple tuners effectively in the prior art.
Summary of the invention
Technical matters to be solved by this invention is that a kind of method that on DVB software, realizes compatible different tuners is provided.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be, the method for softwarecompatible multiple tuners is characterized in that, may further comprise the steps:
A, many groups I2C address of each tuner is provided with; Make the tuner of each type of hardware only have one group of I2C address to be read and write, and read-write that group I2C address is different from that group I2C address read-write in the tuner of other type of hardware in the tuner of each type of hardware by software processing module;
B, software processing module are read and write many groups I2C address one by one, and selecting the type of hardware of the corresponding tuner in the normal one group of I2C address of read-write is current tuner type;
C, software processing module are moved the corresponding driver of current tuner type.
The invention has the beneficial effects as follows, can't read under tuner ID number the situation, realize that the type of hardware of current tuner is judged, realize that effectively software is compatible to the type of hardware of multiple tuners.
Embodiment
The different voltages of the chip select address of tuner can make that the I2C address of tuner is different, and tuner all has 4 groups of I2C addresses usually.
The I2C address format such as the following table of tuner:
| Address Byte | 1 | 1 | 0 | 0 | 0 | MA1 | MA0 | 0 |
Wherein the value of MA1 and MA0 depends on the voltage of chip select address, and is as shown in the table;
| MA1 | MA0 | Chip select address voltage |
| 0 | 0 | （0 - 0.1) * Vcc1 |
| 0 | 1 | Open circuit |
| 1 | 0 | （0.4 - 0.6）* Vcc1 |
| 1 | 1 | （0.9 - 1）* Vcc1 |
4 groups of I2C addresses to each tuner are provided with in advance; Make the tuner of each type of hardware only have one group of I2C address to be read and write by software processing module; And read-write that group I2C address is different from that group I2C address read-write in the tuner of other type of hardware in the tuner of each type of hardware, and is as shown in the table:
| Type of hardware | The I2C address | MA1 | MA0 |
| TUNER1 | ADDRESS1 | 0 | 0 |
| TUNER2 | ADDRESS2 | 0 | 0 |
| TUNER3 | ADDRESS3 | 1 | 1 |
| TUNER4 | ADDRESS4 | 1 | 1 |
Software processing module is made independent module to the tuner driver that uses in the present production run; Adopt then 4 groups of I2C addresses method of operating one by one; Earlier ADDRESS1 is read and write; If the ADDRESS1 operation is normal, I2C has feedback, and the type of hardware of then judging this detuner is TUNER1.If feedback is not then operated ADDRESS2, and the like, up to the type of hardware of confirming detuner.Software processing module realizes that again to the different different drivers of demodulator hardware type operations operation same software simultaneously can compatible four kinds of demodulator hardware types.
Based on above-mentioned principle, the present invention also can be used for realizing in the different hardware compatibility in other I2C address.
Claims (1)
1. the method for softwarecompatible multiple tuners is characterized in that, may further comprise the steps:
A, many groups I2C address of each tuner is provided with; The different voltages of the chip select address through tuner is set; Make the tuner of each type of hardware only have one group of I2C address to be read and write, and read-write that group I2C address is different from that group I2C address read-write in the tuner of other type of hardware in the tuner of each type of hardware by software processing module;
B, software processing module are read and write many groups I2C address of current tuner one by one, and selecting the type of hardware of the corresponding tuner in the normal one group of I2C address of read-write is current tuner type;
C, software processing module are moved the corresponding driver of current tuner type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101147857A CN101931770B (en) | 2010-02-26 | 2010-02-26 | Method for realizing compatibility between software and multiple tuners |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101147857A CN101931770B (en) | 2010-02-26 | 2010-02-26 | Method for realizing compatibility between software and multiple tuners |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101931770A CN101931770A (en) | 2010-12-29 |
| CN101931770B true CN101931770B (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010101147857A Expired - Fee Related CN101931770B (en) | 2010-02-26 | 2010-02-26 | Method for realizing compatibility between software and multiple tuners |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102841798B (en) * | 2012-03-30 | 2016-08-24 | 维沃移动通信有限公司 | A kind of method improving software driver compatibility |
| CN103297728B (en) * | 2013-06-17 | 2016-10-12 | 深圳创维－Rgb电子有限公司 | A kind of identify the method for tuner, device and television set |
| CN103327381B (en) * | 2013-07-04 | 2016-08-17 | 青岛海信宽带多媒体技术有限公司 | A kind of General design method of systems soft ware and Set Top Box |
| CN104093073A (en) * | 2014-07-11 | 2014-10-08 | 四川金网通电子科技有限公司 | Demodulation and tuning self-adaption driving method of set top box |
| CN105786555B (en) * | 2014-12-26 | 2019-07-26 | 深圳Tcl数字技术有限公司 | The initial method and device of demodulator and tuner |
| CN107431497B (en) * | 2015-12-31 | 2019-08-27 | 华为技术有限公司 | A kind of signal circuit and tuned antenna |
| CN106028113A (en) * | 2016-05-20 | 2016-10-12 | 乐视控股（北京）有限公司 | Tuner drive control method and device |
| CN108833905A (en) * | 2018-06-06 | 2018-11-16 | 深圳市宽宏科技有限公司 | A kind of set-top box tuner automatic testing method |
| CN115567665A (en) * | 2022-09-22 | 2023-01-03 | 四川长虹电器股份有限公司 | Self-adaption method of tuner of smart television |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6363437B1 (en) * | 1999-01-07 | 2002-03-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Plug and play I2C slave |
| CN1572107A (en) * | 2001-10-16 | 2005-01-26 | Rf信息公司 | Methods and apparatus for implementing a receiver on a monolithic integrated circuit |
| CN100454964C (en) * | 2006-02-28 | 2009-01-21 | 中国科学院声学研究所 | Method for loading digital TV set top box network interface module |
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- 2010-02-26 CN CN2010101147857A patent/CN101931770B/en not_active Expired - Fee Related
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| CN101931770A (en) | 2010-12-29 |
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Granted publication date: 20120314 |