CN1209022A - Bus control unit for receiver - Google Patents
Bus control unit for receiver Download PDFInfo
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- CN1209022A CN1209022A CN 98111844 CN98111844A CN1209022A CN 1209022 A CN1209022 A CN 1209022A CN 98111844 CN98111844 CN 98111844 CN 98111844 A CN98111844 A CN 98111844A CN 1209022 A CN1209022 A CN 1209022A
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- control unit
- bus control
- software
- interface
- keys
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- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
It can change the parameter of TV receiver. The controller is changed from 36 keys to 16 keys by adding, to the bus controller, software I2C interface and software infrared remote modulating circuit. Said technical project has the advantages of: (1). Not only satisfying the requirement for prodn. alignement of new color TV chip, but also having easier and more simple operation compared with prior art bus controller by increasing software inteligent fuction. (2). The cost is lower than special MCU used for prior art bus controller, which MCU has very high price. (3). Avoiding wrong operation of keys by the operator during working on alignement prodn. line because there is only 16 keys in the controller.
Description
The present invention relates to a kind of special tooling facility of television set production line signal testing and measuring technology, particularly a kind of by the I2C bus, can change the bus control unit of television set parameter.
Improving constantly of the localization rate of parts and components of color television set complete machine production is revitalize national economy necessary.According to the needs of domestic markets, the color television set that design production native subject likes is a television set manufacturer obligation one can't decline.But newly-designed colour TV need design the new color TV machine core with own characteristic and form.It is to finish general assembly and debugging two large divisions work that complete machine is produced main, and debugging work mainly is that the circuit signal data of each working procedure of the movement of the television set that assembles are debugged.
The data-signal debugging of Core of TV set is finished by bus control unit, still from the Core of TV set CN-3 of external introduction, has the characteristic and the form of external producer, and the Core of TV set CN-5 that we design voluntarily has the characteristic and the form of China producer.So it is movement CN-3 compares with the CN-5 movement, all inequality at data format and address format.With the bus control unit of original debugging Core of TV set CN-3, be used for debugging newly-designed Core of TV set CN-5 again, just dying as again.Because original signal debugging is to adopt the special-purpose single-chip microcomputer with I2C hardware interface and infrared remote control hardware modulation circuit, the bus control unit of this import has: 1, can not satisfy colour TV " CN-5 " movement production needs; 2, owing to be special-purpose MCU, so price is extremely expensive, (every needs 30,000 yuans) if continue to use the bus control unit of import, will inevitably increase the colour TV production cost greatly; 3, original bus control unit has 36 keys, and complex circuit is operated very inconveniently, and the personnel of debugging production line often press the wrong button easily.Above-mentioned three big defectives force us must design and develop our bus control unit voluntarily.
The objective of the invention is to: disclose to the public and a kind ofly can satisfy novel C N-5 movement production debugging needs, have the novel bus control unit of the hardware modulation circuit of software I 2C interface, software modulation infrared remote control and I2C hardware interface, infrared remote control.
The technical solution adopted in the present invention is:
Employing adds software I 2C interface and software modulation infrared remote controller on the bus control unit basis of the hardware modulation circuit of the original I2C of having only hardware interface, infrared remote control.36 keys with original bus control unit change 16 keys into.
Software program of the present invention is by the software I 2C interface routine with I2C hardware interface circuit function, has the formation such as software infrared modulated program, 16 key board handling procedures, display routine of infrared remote control hardware modulation circuit function.
By operation keyboard, can move the function corresponding program by control single chip computer, realize that channel switches, select debugged parameter and read-write tuning parameter.
Two I/O of single-chip microcomputer draw the data clock end of foot as the I2C interface, and another I/O draws foot as infrared remote control modulation output.
The user operates 16 key boards and gets final product control single chip computer executive software I2C interface routine, carries out exchanges data with realization by the I2C bus between bus control unit and television set, and executive software infrared modulated procedure Selection TV signal.
Hardware of the present invention is by general single chip, 16 key boards, display etc., and the used components and parts of infrared circuit, and the components and parts that corresponding power circuit is all etc. have formed the means of finishing technical scheme jointly.
The present invention adopts the sample of technique scheme and technical measures trial-production, and is fine through trying out and test effect, reaches designing requirement fully.Its advantage is: 1, not only can satisfy the needs of colour TV " CN-5 " movement production debugging, and increase the software intelligent function, operation is more prone to easy than original bus control unit; 2, be special-purpose MCU owing to what used originally, so price is extremely expensive, (every needs 30,000 yuans) is if continue to use the bus control unit of import, will inevitably be expensive more, increase the colour TV production cost greatly, and 300 yuan/platform of cost ability of the present invention, nature can reduce the colour TV production cost greatly; 3, original bus control unit has 36 keys, and complex circuit is operated very inconveniently, and the personnel of debugging production line often press the wrong button easily.Above-mentioned three big defectives force us must design and develop our bus control unit voluntarily.
Below in conjunction with description of drawings and embodiment the present invention is done further introduction.
Fig. 1 is an operating circuit block diagram of the present invention.
Fig. 2 is for the present invention's 16 key boards and show embodiment operating circuit connection layout.
Embodiment operating circuit connection layouts such as Fig. 3 is single-chip microcomputer of the present invention, transmit and receive, power supply.
Wherein:
IC3 is a single-chip microcomputer, usefulness be 51 series, model is 89C52.That IC4 uses is 24C04.
IC21 is the 74HC138 decoder, and 55 displays are CL505.
26PIN flat cable plug, seat are respectively at Fig. 2, Fig. 3.
With Fig. 2, Fig. 3 embodiment circuit diagram,, be made into the printed circuit version according to printed circuit manufacture craft, flat cable connector assembly and related standards.
Components and parts required for the present invention are assembled in strict accordance with assembling and setting technology on the printed circuit version, and debugging gets final product.
Claims (6)
1, a kind of novel bus control unit that can change the television set parameter is characterized in that: add the hardware modulation circuit that software I 2C interface and software modulation infrared remote control replaces having Hardware I 2C interface and infrared remote control on the basis of original bus control unit; 36 keys with original bus control unit change 16 keys into.
2, novel bus control unit according to claim 1, it is characterized in that: the software program that is adopted is by the software I 2C interface routine with I2C hardware interface circuit function, has the formation such as software infrared modulated program, keyboard handling procedure, display routine of infrared remote control hardware modulation circuit function.
3, novel bus control unit according to claim 1 is characterized in that: by operating 16 keyboards, can move the function corresponding program by control single chip computer, realize that channel switches, select debugged parameter and read-write tuning parameter.
4, novel bus control unit according to claim 1 is characterized in that: hardware is single-chip microcomputer, 16 bit keyboards, display, infrared circuit elements device, and the components and parts of power circuit etc.
5, novel bus control unit according to claim 1 is characterized in that: two I/O of single-chip microcomputer draw the data clock end of foot as the I2C interface, and another I/O draws foot as infrared remote control modulation output.
6, novel bus control unit according to claim 1, it is characterized in that: the user operates 16 keys and gets final product control single chip computer executive software I2C interface routine, between bus control unit and television set, carry out exchanges data with realization by the I2C bus, and executive software infrared modulated procedure Selection TV signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111844 CN1209022A (en) | 1998-02-05 | 1998-02-05 | Bus control unit for receiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98111844 CN1209022A (en) | 1998-02-05 | 1998-02-05 | Bus control unit for receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1209022A true CN1209022A (en) | 1999-02-24 |
Family
ID=5221731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98111844 Pending CN1209022A (en) | 1998-02-05 | 1998-02-05 | Bus control unit for receiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1209022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442861C (en) * | 2004-01-17 | 2008-12-10 | 深圳创维－Rgb电子有限公司 | General one-key telecontrol regulation method and apparatus |
| US11382330B2 (en) | 2017-12-25 | 2022-07-12 | Dow Global Technologies Llc | Micro-encapsulation of an insecticide |
-
1998
- 1998-02-05 CN CN 98111844 patent/CN1209022A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100442861C (en) * | 2004-01-17 | 2008-12-10 | 深圳创维－Rgb电子有限公司 | General one-key telecontrol regulation method and apparatus |
| US11382330B2 (en) | 2017-12-25 | 2022-07-12 | Dow Global Technologies Llc | Micro-encapsulation of an insecticide |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |