CN100552627C - A kind of method of electronic product being carried out Data Update - Google Patents
A kind of method of electronic product being carried out Data Update Download PDFInfo
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- CN100552627C CN100552627C CNB2005100353714A CN200510035371A CN100552627C CN 100552627 C CN100552627 C CN 100552627C CN B2005100353714 A CNB2005100353714 A CN B2005100353714A CN 200510035371 A CN200510035371 A CN 200510035371A CN 100552627 C CN100552627 C CN 100552627C
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- erasing apparatus
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Abstract
The present invention a kind ofly carries out the method for Data Update to electronic product, and it is to adopt special I
2The C bus hub is drawn signal in the machine outside the product, with meeting above-mentioned special I
2The cable that the C bus hub requires, by above-mentioned socket with I in the machine
2The C bus is tied with the storer erasing apparatus of outside, by the external memory storage erasing apparatus data in the storer in the product is handled operation then.It is low that the present invention implements cost, and convenient the use, and convenient staff after sale carries out the change of system upgrade and tune-up data to electronic product, can greatly increase work efficiency.
Description
Technical field
The present invention relates to pass through I
2The C bus protocol is controlled the various electronic products with data transmission, particularly broadcast television receiver product wherein.
Background technology
I
2The C bus is the convenient road of carrying out data transmission between the integrated circuit, and its biggest advantage is that it only uses two lines to transmit, and this brings convenience to circuit board wiring, and Just because of this, it is widely used in each electronic product.
But this series products in process of production and the problem of the follow-up read-write upgrading that can run into aspect service after sale.We know, product always needs to debug in process of production, because there is special-purpose read-write equipment in manufacturer, the renewal of data is out of question, but also can face the possibility of software upgrading after selling, along with scientific and technological development is maked rapid progress, a lot of equipment all need renewal, upgrading for data, both of these case all relates to data rewriting problem, the especially latter event in its storer.
At such problem, to the product of moulding now, common way is now: open machine, memory chip tip-off from the circuit board is got off, be put on the special-purpose storer erasing apparatus, realize Data Update and software upgrading by area of computer aided.Obviously, need disassemble original equipment or product like this, operation is very inconvenient, tear open greatly to unload greatly and be one and not only expended time in but also the thing of special trouble, if misoperation also can be damaged circuit component in unloading process, very unfavorable in production and product itself, the utmost point need improve.
Summary of the invention
The purpose of this invention is to provide a kind of special I of utilizing
2The C bus interface is carried out the method for Data Update to electronic product.This method can directly be connected in data-carrier store on the read-write equipment, can carry out fast reading and writing to data, needn't dismantle storer.
Another object of the present invention provides special, the special I quick, esy to use, safe and reliable of pegging graft of a kind of structure
2The C bus interface devices is used for according to I
2The C bus protocol carries out the memory of communication, and---comprising data memory and memory under program---carries out repeatedly erasable; Avoid unrelated person to pass through general purpose I simultaneously
2The C bus interface is carried out undesirable rewriting to program in the product and data, guarantees the data security of product.
The present invention mainly is by a special I is set on electronic product shell
2The C bus hub is with this special I
2The C bus hub is a bridge, with I in the machine
2The C bus couples together with the storer erasing apparatus of outside, to realize that product is carried out the processing or the software upgrading of tune-up data.
A kind of electronic product is carried out the method for Data Update, it is to adopt special I
2The C bus hub is drawn signal in the machine outside the product, and implementation step is:
Above-mentioned electronic product is carried out the method for Data Update, when it copies data, operates as follows:
1. disconnect the product total power switch of desired data copy,
2. with meeting I
2The cable that the C bus hub requires is with special I
2The C bus hub couples together with the storer erasing apparatus of outside,
3. with the I of external memory storage erasing apparatus
2The ID function identification pin of C bus interface is set to the reset level corresponding to product inside MCU,
4. by the external memory storage erasing apparatus data in the storer in the product are handled operation.
Wherein 3. 2. step do not conflict, and their order can be put upside down.In order to prevent I inside and outside the product
2The C bus clashes, the I of external memory storage erasing apparatus
2Signal level on the ID function identification pin of C bus interface need be arranged to the reset level of the inner MCU of televisor, promptly when carrying out the user data copy, forces the inner MCU of TV to be in reset mode.
Above-mentioned copying data step, the level that MCU need be used to control the control port (I/O mouth) of television boot-strap/holding state is defined as:
Reset level is a holding state;
Opposite level is an open state.
Above-mentioned electronic product is carried out the method for Data Update, when it carried out the system software online upgrading to electronic product, operation steps was:
1. with meeting I
2The cable that the C bus hub requires is with special I
2The C bus hub couples together with the storer erasing apparatus of outside,
2. force product to enter system software online upgrading pattern by special command,
3. with I
2The ID function identification pin of C bus interface is unsettled,
4. by the external memory storage erasing apparatus data in the storer in the product are handled operation.
During the system software online upgrading, the I of external memory storage erasing apparatus
2The ID function identification pin of C bus interface is unsettled, and promptly the MCU reset level is determined by internal circuit.
Wherein 4. 3. 2. 1. step do not constitute with step and conflict, and their precedence can be put upside down.
Used special I
2The C bus hub is used for signal in the machine is drawn outside the product, and this interface arrangement has 5 signal pins, its title and connect as follows:
1. SCL:I
2C bus clock line connects mutually with the SCL of product inside,
2. SDA:I
2The C bus data line connects mutually with the SDA of product inside,
3. V
CC: the externally fed power input, with the E of product inside
2The PROM power supply end connects mutually,
4. GND: ground, with the E of product inside
2PROM power ground and I
2The ground wire of C connects mutually,
5. ID: operating function is selected input end, is connected with (RESET) pin that resets of the MCU of product inside.
Wherein, SCL, SDA can utilize I
2The C bus is original, ID, V
CC, GND is the pin that increases newly.
Above-mentioned generally speaking 5 pins are distributed on the right cylinder in the socket with various spacings, and right cylinder has more than one locating slot vertically, and its version also is different from interface arrangement commonly used in appearance.
It is low that the present invention implements cost, and convenient the use, and convenient staff after sale carries out the change of system upgrade and tune-up data to electronic product, can greatly increase work efficiency.
Because special I
2The signal configures and the structure of C bus hub are special, thereby can prevent data and the program in the storer in the unrelated person hack product, guarantee the safety of data.
Description of drawings
Fig. 1 is I
2C bus special purpose interface structural representation,
Fig. 2 is the interface extension line synoptic diagram,
Fig. 3 is an interface extension line annexation synoptic diagram.
Embodiment
Be example with the televisor below, introduce the best mode that a kind of the present invention realizes.As shown in drawings, this special I
2C interface comprises 5 signal ends altogether, is respectively:
1. SCL:I
2C bus clock line is connected with the SCL of TV inside,
2. SDA:I
2The C bus data line is connected with the SDA of TV inside,
3. V
CC: exterior I
2C power supply input (be generally+5V, can import relevant voltage voluntarily if any special) is with the E of TV inside
2The PROM power supply end is connected,
4. GND: ground, with the E of TV inside
2PROM power ground and I
2The ground wire of C is connected,
5. ID: operating function is selected input end, connects mutually with (RESET) pin that resets of the MCU of TV inside.This pin has two states, and is different and different with function.
When needs are realized the user data copy, in order to prevent I inside and outside the product
2The C bus clashes, the I of external memory storage erasing apparatus
2Signal level on the ID function identification pin of C bus interface need be arranged to the active homing level of the inner MCU of televisor, promptly when carrying out the user data copy, forces the inner MCU of TV to be in reset mode.
When needs are realized ISP (system software online upgrading) function, the I of external memory storage erasing apparatus
2The ID function identification pin of C bus interface is unsettled, and promptly the MCU reset level is determined by internal circuit.
Now, just by special I of the present invention
2The C bus interface, the step division that product is carried out data processing and system software upgrading operation is as follows:
One, user data copy:
1. disconnect the general supply of televisor,
2. with the I of external memory storage erasing apparatus
2The ID pin of C bus interface is set to the active homing level (reason has description in the back) of the inner MCU of corresponding televisor,
3. with the I of external memory storage erasing apparatus
2C bus interface and televisor special I
2C interface is connected,
4. the user data copy function of being correlated with by the external memory storage erasing apparatus,
5. behind the end of operation with the I of external memory storage erasing apparatus
2C bus interface and televisor special I
2C interface disconnects and connecting.
Can finish the user data copy function by above-mentioned 1～5 step operation.
At this, be illustrated for the relevant issues in the aforesaid operations process:
When 1. data are rewritten or are copied in to machine, need be with the I of external memory storage erasing apparatus
2The ID function identification pin of C bus interface is set to the active homing level of the inner MCU of corresponding televisor.
For televisor inside E
2The power supply of PROM may with the situation of the mutual UNICOM of power supply of MCU, when the external memory storage erasing apparatus by the V in the interface
CC, GND is to E in the televisor
2Also to the MCU power supply, this moment is because by special I in the time of the PROM power supply
2ID pin in the C bus interface offers effective RESET signal of MCU, thereby makes externally I
2Guarantee under the situation that the C bus interface does not have to disconnect that the inner MCU of televisor is in reset mode always, MCU is corresponding to inner I
2The I/O port of C bus interface also just is in vacant state all the time, uses so give external tool the machine internal bus, has prevented inner MCU and external tool contention I
2The conflict of C bus.
2. told about above and when powering up, connected external bus and do not have the bus collision problem.But, when being in start or holding state, televisor connects external bus, and resetting suddenly then has problem, to this, can adopt following method to solve:
In system design, the level that MCU need be used to control the control port (I/O mouth) of television boot-strap/holding state is defined as:
Reset level is a holding state;
Opposite level is an open state.
Like this, though under the start situation wrong insertion external bus, TV set power will reset and enter holding state automatically along with MCU, so just can not cause hardware damage.
3. because of special I
2The version of C bus interface is fully different with all signal terminals (as S terminal, AV terminal, VGA, DVI etc.), thereby the user can not be with this interface arrangement of insertion of other signal cable mistake.
Two, system software online upgrading (ISP):
1. force televisor to enter ISP pattern (specific instructions is relevant with being provided with of MCU and corresponding system software, different MCU or different system software, its order is understood different) by special command,
2. with the I of external tool
2The ID function identification pin of C bus interface is unsettled,
3. with the I of external tool
2C bus interface and televisor special I
2The C bus interface connects mutually,
4. carry out the operation of system software online upgrading by external tool,
5. behind the end of operation, with the I of external tool
2C bus interface and televisor special I
2The C bus interface disconnects and connecting.
Can finish user data copy or system software online upgrading by the aforesaid operations step.
Claims (1)
1, a kind of electronic product is carried out the method for Data Update, it is to adopt special I
2The C bus hub is drawn signal in the machine outside the product, it is characterized in that this method performing step is:
Step 1 is with meeting above-mentioned special I
2The cable that the C bus hub requires connects special I
2The C bus hub, and utilize special I
2The C bus hub is with I in the machine
2The C bus couples together with the storer erasing apparatus of outside,
Step 2 is directly handled operation by the external memory storage erasing apparatus to the data in the storer in the product;
When data are copied, operate as follows:
1. disconnect the product total power switch of desired data copy,
2. with meeting I
2The cable that the C bus hub requires is with special I
2The C bus hub couples together with the storer erasing apparatus of outside,
3. with the I of external memory storage erasing apparatus
2The ID function identification pin of C bus interface is set to the reset level corresponding to product inside MCU,
4. by the external memory storage erasing apparatus data in the storer in the product are handled operation;
At this moment, the MCU level that is used to control the control port of electronic product start/holding state is defined as:
Reset level is a holding state;
Opposite level is an open state;
When electronic product was carried out the system software online upgrading, operation steps was:
A is with meeting I
2The cable that the C bus hub requires is with special I
2The C bus hub couples together with the storer erasing apparatus of outside,
B forces product to enter system software online upgrading pattern by special command,
C is with I
2The ID function identification pin of C bus interface is unsettled,
D handles operation by the external memory storage erasing apparatus to the data in the storer in the product;
During the system software online upgrading, external memory storage erasing apparatus I
2The ID function identification pin of C bus interface is unsettled, and promptly the MCU reset level is determined by internal circuit;
And, used special I
2The C bus hub is used for signal in the machine is drawn outside the product this I
2The C bus hub has 5 signal pins, its title and connect as follows:
1. SCL:I
2C bus clock line is connected with the SCL of product inside,
2. SDA:I
2The C bus data line is connected with the SDA of product inside,
3. V
CC: the externally fed power input, with the E of product inside
2The PROM power supply end is connected,
4. GND: ground, with the E of product inside
2PROM power ground and I
2The ground wire of C is connected,
5. ID: operating function is selected input end, is connected with the reset pin of the MCU of product inside,
Wherein, SCL, SDA utilize I
2The C bus is original, ID, V
CC, GND is the pin that increases newly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100353714A CN100552627C (en) | 2005-06-24 | 2005-06-24 | A kind of method of electronic product being carried out Data Update |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100353714A CN100552627C (en) | 2005-06-24 | 2005-06-24 | A kind of method of electronic product being carried out Data Update |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1885259A CN1885259A (en) | 2006-12-27 |
| CN100552627C true CN100552627C (en) | 2009-10-21 |
Family
ID=37583420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100353714A Expired - Fee Related CN100552627C (en) | 2005-06-24 | 2005-06-24 | A kind of method of electronic product being carried out Data Update |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100552627C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779061A (en) * | 2012-07-31 | 2012-11-14 | 福建捷联电子有限公司 | Method for achieving software update under television (TV) standby state |
| CN106371876B (en) * | 2016-08-31 | 2020-08-04 | 航宇救生装备有限公司 | Method and system for upgrading external program of product |
| CN110162321B (en) * | 2019-05-06 | 2023-07-28 | 晶晨半导体(上海)股份有限公司 | Updating method of boot loader |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251489A (en) * | 1998-10-09 | 2000-04-26 | 松下电器产业株式会社 | Method for renewing software in digital TV receiver using recording data |
| CN1299096A (en) * | 2001-01-12 | 2001-06-13 | 常促宇 | High-capacity moving storage of universal serial bus interface and its implementation method |
| CN2463878Y (en) * | 2001-01-12 | 2001-12-05 | 北京先锋博创科技发展有限公司 | Mass moving storage of general serial bus interface |
-
2005
- 2005-06-24 CN CNB2005100353714A patent/CN100552627C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1251489A (en) * | 1998-10-09 | 2000-04-26 | 松下电器产业株式会社 | Method for renewing software in digital TV receiver using recording data |
| CN1299096A (en) * | 2001-01-12 | 2001-06-13 | 常促宇 | High-capacity moving storage of universal serial bus interface and its implementation method |
| CN2463878Y (en) * | 2001-01-12 | 2001-12-05 | 北京先锋博创科技发展有限公司 | Mass moving storage of general serial bus interface |
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| Publication number | Publication date |
|---|---|
| CN1885259A (en) | 2006-12-27 |
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Granted publication date: 20091021 Termination date: 20180624 |
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