CN101610371B - Television and communication method of chip in television - Google Patents
Television and communication method of chip in television Download PDFInfo
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- CN101610371B CN101610371B CN2009101617046A CN200910161704A CN101610371B CN 101610371 B CN101610371 B CN 101610371B CN 2009101617046 A CN2009101617046 A CN 2009101617046A CN 200910161704 A CN200910161704 A CN 200910161704A CN 101610371 B CN101610371 B CN 101610371B
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- 238000004891 communication Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000004088 simulation Methods 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000009897 systematic effect Effects 0.000 claims description 13
- 238000011161 development Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
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Abstract
The embodiment of the invention discloses a television and a communication method of a chip in the television, belonging to the technical field of the television and solving the technical problems that the prior art has high cost and is not ideal in commonality. The television comprises a main chip and at least one functional chip which is connected with the main chip and controlled by the main chip; and the main chip is used for receiving a user control instruction, sending a control command simulating the format of an IR signal to the functional chip according to the user control instruction, and controlling the functional chip by the control command. The communication method of the chip in the television comprises the following steps: the main chip receives the user control instruction, sends the control command simulating the format of the IR signal to the functional chip according to the user control instruction, and controls the functional chip by the control command. The invention is applied to improve the television.
Description
Technical field
The invention belongs to technical field of television sets, be specifically related to the communication means of a kind of television set and this chip in television
Background technology
Along with the continuous development of electronic technology, television set has become one of household electrical appliance the most common in people's daily life.
Television function from strength to strength; Used various functional chips (or functional module) are also more and more in it; Enhancing along with the television set compatibility function; The various functional chips of difference in functionality all have been integrated in the television set, and the communication between each functional chip is intractable often, and some functional chip is not supported SLAVE IIC pattern.
Prior art increases extra Communication Control chip for solving the communication issue between the functional chip between the different functions chip, support the communication between the different functions chip through the Communication Control chip.
The inventor finds that there is following problem at least in prior art in realizing process of the present invention:
The Communication Control chip that is increased in the prior art has not only increased cost; And the standard of the Communication Control chip of different manufacturers production is also inconsistent; The kind of the functional chip that every kind of communication control chip can be supported is very limited, so versatility is also not ideal enough.
Summary of the invention
The embodiment of the invention provides the communication means of a kind of television set and this chip in television, has solved the technical problem that prior art can't accurately be controlled the different functions chip.
For achieving the above object, embodiments of the invention adopt following technical scheme:
This television set; At least two functional chips that comprise master chip and link to each other and controlled by said master chip with said master chip; Said master chip is used to receive user's control command and according to the control command of said user's control command to said functional chip transmission Simulation with I R signal format, controls said functional chip through said control command; The control command of said Simulation with I R signal format adopts pulse length to encode; The data waveform of the control command of said Simulation with I R signal format comprises systematic code and command code, and wherein: said systematic code is used to distinguish said functional chip; Said command code is used to control said functional chip and accomplishes corresponding operating; The data waveform of the control command of said Simulation with I R signal format also comprises the AGC pulse, and said AGC pulse is used to be provided with the gain of the IR receiver on the said functional chip.
Further, said master chip is provided with GPIO control pin, and said master chip sends said control command through said GPIO control pin to said functional chip.
Further, said user's control command is an infrared remote-controlled signal.
Further, to be 8 and its carrier frequency be 38K for said systematic code and command code.
Further, the time span of each is 1.12ms or 2.25ms in said 8.
The communication means of this chip in television; May further comprise the steps: said master chip receives user's control command and according to the control command of said user's control command to said functional chip transmission Simulation with I R signal format, controls said functional chip through said control command; Said master chip sends the method for the control command of Simulation with I R signal format, specifically may further comprise the steps: said master chip uses pulse length that said user's control command is encoded according to said user's control command; Said master chip sends the AGC pulse to the IR receiver of said functional chip; The gain of the IR receiver of the said functional chip of said AGC pulse regulation;
Said master chip is after idle a period of time, and the IR receiver of said functional chip is sent address code, command code successively; The said address code that said master chip will send, the position negate of said command code, and then be sent to the IR receiver of said functional chip; Whether the address code that the checking of said functional chip is received for the second time, command code are to obtain after the address code that received for the first time, the command code negate, if then carry out corresponding operating.Master chip in the television set provided by the present invention can receive user's control command and according to the control command of user's control command to functional chip transmission Simulation with I R signal format, come the controlled function chip through control command.Because functional chip is controlled by master chip all, functional chip is directly communicated by letter with master chip, when comprising at least one functional chip as if this television set; Communicating by letter between master chip and the functional chip need not to increase extra Communication Control chip; When if this television set comprises at least two functional chips, relatively independent between each functional chip, so also need not to increase extra Communication Control chip; So not only saved device; Reduced the control command that cost and most of functional chip all can receive, discern Simulation with I R signal format, and then versatility is also even more ideal, has cost height, the dissatisfactory technical problem of versatility so solved prior art.In addition, when comprising at least two functional chips, because relatively independent between the functional chip as if this television set; Influence less each other; Be connected with master chip after each functional chip designs, the different functions chip can separate independent check, so the construction cycle is short, development risk is little again.Those skilled in the art according to the present invention in full disclosed content and common practise can beyond all doubt ground, directly confirm: use pulse length that control command is encoded among the present invention; Can improve signal transfer quality; And then the loss of data and the dropout problem that are produced in can more efficiently minimizing control command transmission course; More help reducing the error in the control command transmission course, the assurance master chip can be controlled different some functional chips more accurately; Simultaneously, the using system sign indicating number is distinguished the different functions chip, and the utility command sign indicating number is used for the controlled function chip and accomplishes corresponding operating, can realize the accurately different some functional chips of control of master chip; The gain of the IR receiver on the functional chip is set through the AGC pulse; Can improve IR receiver on the functional chip to the reception of the control command that master chip sent; And then can more efficiently realization master chip accurate different some functional chips of control, so solved the technical problem that prior art can't accurately be controlled the different functions chip.
Description of drawings
Fig. 1 is the sketch map of the annexation between master chip and the various functional chip in the television set that embodiments of the invention provided;
Fig. 2 is the waveform sketch map of logical one in the communication means of the chip in television that embodiments of the invention provided and logical zero;
Fig. 3 is the sketch map of a frame data waveform in the communication means of the chip in television that embodiments of the invention provided;
Fig. 4 is the sketch map of the waveform of a kind of execution mode of systematic code and instruction sign indicating number in the communication means of the chip in television that embodiments of the invention provided;
Fig. 5 is the schematic flow sheet of the communication means of the chip in television that embodiments of the invention provided;
Fig. 6 is the schematic flow sheet of the method for the control command of the master chip transmission Simulation with I R signal format that the embodiment of the invention provided.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is described in detail.
The embodiment of the invention provides a kind of with low cost, versatility is comparatively desirable, the construction cycle is short and development risk the is little television set and the communication means of this chip in television.
As shown in Figure 1; The television set that the embodiment of the invention provided; At least one functional chip that comprises master chip and link to each other and controlled by master chip with master chip; Three functional chips of master chip control are functional chip 1, functional chip 2 and functional chip 3 in the present embodiment, and master chip is used to receive user's control command and according to the control command of user's control command to each functional chip transmission Simulation with I R (remote control) signal format, controls each functional chip through control command.
Master chip in the television set provided by the present invention can receive user's control command and according to the control command of user's control command to functional chip transmission Simulation with I R signal format, come the controlled function chip through control command.Because functional chip is controlled by master chip all, functional chip is directly communicated by letter with master chip, when comprising at least one functional chip as if this television set; Communicating by letter between master chip and the functional chip need not to increase extra Communication Control chip; When if this television set comprises at least two functional chips, relatively independent between each functional chip, so also need not to increase extra Communication Control chip; So not only saved device; Reduced the control command that cost and most of functional chip all can receive, discern Simulation with I R signal format, and then versatility is also even more ideal, has cost height, the dissatisfactory technical problem of versatility so solved prior art.
In addition, when comprising at least two functional chips, because relatively independent between the functional chip as if this television set; Influence less each other; Be connected with master chip after each functional chip designs, the different functions chip can separate independent check, so the construction cycle is short, development risk is little again.
Certainly, functional chip also can be functional module or have the device that Simulation with I R signal format received, discerns, carried out function in the present embodiment.
Master chip is provided with GPIO control pin, and master chip is controlled pin to the functional chip transmitting control commands through GPIO.GPIO control pin is general I/O control port, and this port can be configured to respectively input or output through software.
User's control command is an infrared remote-controlled signal.Send the television set that user's control command makes things convenient for user's far distance controlled embodiment of the invention to be provided through infrared remote-controlled signal, certainly, user's control command also can directly input to master chip through the television set button in the present embodiment.
The control command of Simulation with I R signal format adopts pulse length to encode.Adopt the encode transmission quality of back data of pulse length can receive, discern the control command that the employing pulse length is encoded than higher and most of functional chips are equal.
This television set is as shown in Figure 1 in the present embodiment comprises at least two said functional chips, and the data waveform of the control command of Simulation with I R signal format as shown in Figure 3 comprises systematic code and command code, wherein:
Systematic code is used to distinguish functional chip;
Command code is used for the controlled function chip and accomplishes corresponding operating.
Systematic code is also claimed address code, is used to indicate the address of control command transmission, and for example: which functional chip is this control command should be sent to; Which operation command code deixis chip should accomplish.
The data waveform of the control command of Simulation with I R signal format also comprises the AGC pulse, and the AGC pulse is used to be provided with the gain of the IR receiver on the functional chip.The AGC pulse sets the IR receiver on the functional chip, and it is in after the suitable accepting state, again to IR receiver transmitting system sign indicating number and command code on the functional chip.
It is 38K that systematic code and command code are 8 and its carrier frequency.8 systematic code and command code are more common, and carrier frequency is that the control command laser propagation effect of Simulation with I R signal format of 38K is more stable.
Shown in Figure 3 is a frame data waveform, the i.e. logic query of an agreement.(least significant bit sends prior to MSB (highest significant position) LSB in this agreement.For example: byte 00001111,0 of the left side is exactly MSB, and 1 of the right is exactly LSB.
As shown in Figure 2, the time span of each is 1.12ms or 2.25ms in 8.Each high level is that the 38K carrier wave of 560 μ s constitutes (about 21 cycles) by length in the present embodiment.The logical one transmitting time of 1 (bit) is 2.25ms, and the transmitting time of 1 logical zero is 1.12ms.
Shown in Figure 4 for systematic code be 0xBF; The waveform sketch map of the data waveform of the control command of Simulation with I R signal format provided by the present invention when command code is 0x14; Wherein: " 0x " represents 16 systems, and " BF " represents the address of one of them functional chip, and a control command is represented in " 14 ".
As shown in Figure 5, the embodiment of the invention also provides a kind of communication means of chip in television, may further comprise the steps:
Master chip receives user's control command and according to the control command of user's control command to functional chip transmission Simulation with I R signal format, comes the controlled function chip through control command.
Because the embodiment of the invention has the television set that is provided with the invention described above embodiment and has identical technical characterictic, so also can produce identical technique effect, solves identical technical problem.
As shown in Figure 6, master chip sends the method for the control command of Simulation with I R signal format in the present embodiment, specifically may further comprise the steps:
S1, master chip use pulse length that user's control command is encoded according to user's control command;
S2, master chip send AGC pulse (duration can be 9ms) to the IR receiver of functional chip;
The gain of the IR receiver of S3, AGC pulse regulation functional chip;
Idle a period of time of S4, master chip (for example: 4.5ms), the IR receiver of functional chip is sent address code, command code successively;
The address code that S5, master chip will send, the negate of command code position, and then be sent to the IR receiver of functional chip;
Whether the address code that the checking of S6, functional chip is received for the second time, command code are to obtain after the address code that received for the first time, the command code negate, if then carry out corresponding operating.Certainly, among the above-mentioned steps S6, functional chip also can then be carried out corresponding operating after the contrast unanimity with comparing with the address code, the command code that are received for the first time after its address code that is received for the second time, the command code negate.
The above; Be merely embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; Can expect easily changing 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 range of claim.
Claims (6)
1. television set; It is characterized in that: at least two functional chips that comprise master chip and link to each other and controlled by said master chip with said master chip; Said master chip is used to receive user's control command and according to the control command of said user's control command to said functional chip transmission Simulation with I R signal format, controls said functional chip through said control command;
The control command of said Simulation with I R signal format adopts pulse length to encode;
The data waveform of the control command of said Simulation with I R signal format comprises systematic code and command code, wherein:
Said systematic code is used to distinguish said functional chip;
Said command code is used to control said functional chip and accomplishes corresponding operating;
The data waveform of the control command of said Simulation with I R signal format also comprises the AGC pulse, and said AGC pulse is used to be provided with the gain of the IR receiver on the said functional chip.
2. television set according to claim 1 is characterized in that: said master chip is provided with GPIO control pin, and said master chip sends said control command through said GPIO control pin to said functional chip.
3. television set according to claim 1 is characterized in that: said user's control command is an infrared remote-controlled signal.
4. television set according to claim 1 is characterized in that: it is 38K that said systematic code and command code are 8 and its carrier frequency.
5. television set according to claim 4 is characterized in that: the time span of each is 1.12ms or 2.25ms in said 8.
6. the communication means of any said chip in television of claim 1 to 5 is characterized in that: may further comprise the steps:
Said master chip receives user's control command and according to the control command of said user's control command to said functional chip transmission Simulation with I R signal format, controls said functional chip through said control command;
Said master chip sends the method for the control command of Simulation with I R signal format, specifically may further comprise the steps:
Said master chip uses pulse length that said user's control command is encoded according to said user's control command;
Said master chip sends the AGC pulse to the IR receiver of said functional chip;
The gain of the IR receiver of the said functional chip of said AGC pulse regulation;
Said master chip is after idle a period of time, and the IR receiver of said functional chip is sent address code, command code successively;
The said address code that said master chip will send, the position negate of said command code, and then be sent to the IR receiver of said functional chip;
Whether the address code that the checking of said functional chip is received for the second time, command code are to obtain after the address code that received for the first time, the command code negate, if then carry out corresponding operating.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101617046A CN101610371B (en) | 2009-07-31 | 2009-07-31 | Television and communication method of chip in television |
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| CN2009101617046A CN101610371B (en) | 2009-07-31 | 2009-07-31 | Television and communication method of chip in television |
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| CN101610371A CN101610371A (en) | 2009-12-23 |
| CN101610371B true CN101610371B (en) | 2012-01-11 |
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| CN111009111B (en) * | 2019-12-12 | 2021-08-27 | 上海龙旗科技股份有限公司 | Data coding modulation method and system based on SPI bus |
| CN115396243B (en) * | 2022-10-27 | 2023-03-14 | 武汉思创易控科技有限公司 | PoE power supply control method, storage medium and terminal |
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Address after: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |