CN102136664A - Communication interface switching device - Google Patents
Communication interface switching device Download PDFInfo
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- CN102136664A CN102136664A CN2010103007733A CN201010300773A CN102136664A CN 102136664 A CN102136664 A CN 102136664A CN 2010103007733 A CN2010103007733 A CN 2010103007733A CN 201010300773 A CN201010300773 A CN 201010300773A CN 102136664 A CN102136664 A CN 102136664A
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Abstract
The invention discloses a communication interface switching device which comprises a microcontroller, a USB interface and a digital I/O interface. The microcontroller is connected with the USB interface and the digital I/O interface; and the microcontroller is used for switching data transmitted between the USB interface and the digital I/O interface, so as to ensure that data transmitted between the USB interface and the digital I/O interface meets the protocol requirement of an interface. The communication interface switching device can realize the switching of various communication interfaces.
Description
Technical field
The present invention relates to a kind of switching device, particularly a kind of switching device of realizing multiple communication interface switching.
Background technology
In Electronic Testing and control field, usually needing to use simultaneously multiple communication interface tests or controls, and different communication interfaces, respectively different requirements are proposed for test or control hardware (as computer) as SPI interface, digital I/O interface, I2C interface etc., and different drivers and control software to be installed simultaneously, so not only strengthen cost, and should use also inconvenient.
Summary of the invention
In view of foregoing, the invention provides a kind of simple in structure, low price and can conveniently realize the switching device of multiple communication interface switching.
A kind of communication interface switching device, comprise a microcontroller, a USB interface and a digital I/O interface, described microcontroller links to each other with described USB interface and described digital I/O interface, described microcontroller is used to change the data of transmitting between described USB interface and the described digital I/O interface, so that the protocol requirement of the data fit corresponding interface that transmits on described USB interface and the described digital I/O interface.
A kind of communication interface switching device, comprise a microcontroller, a serial line interface and a digital I/O interface, described microcontroller links to each other with described serial line interface and described digital I/O interface, described microcontroller is used to change the data of transmitting between described serial line interface and the described digital I/O interface, so that the protocol requirement of the data fit corresponding interface that transmits on described serial line interface and the described digital I/O interface.
Compare prior art, described communication interface switching device is changed the data of transmitting between described USB interface or serial line interface and the described digital I/O interface by described microcontroller, so that the protocol requirement of the data fit corresponding interface that transmits on described USB interface or serial line interface and the described digital I/O interface, described digital I/O interface is changed by USB interface or serial line interface, and then make electronic test equipment or control appliance not need to be provided with separately corresponding digital I/O interface and installation corresponding driving program and control software, it is excessive to save cost greatly like this, and should use also very convenient.
Description of drawings
The invention will be further described in conjunction with embodiment with reference to the accompanying drawings.
Fig. 1 is the schematic diagram of the better embodiment of communication interface switching device of the present invention.
Fig. 2 is the theory diagram of the better embodiment of communication interface switching device of the present invention.
The main element symbol description
| The communication |
100 |
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10 |
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20 |
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30 |
| Numeral I/ |
40 |
| The |
50 |
| The |
60 |
| The |
70 |
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80 |
Embodiment
Please jointly with reference to Fig. 1 and Fig. 2, the better embodiment of communication interface switching device 100 of the present invention comprises a USB (USB of being located on the casing, Universal Serial Bus) interface 20, a serial line interface 30, one digital I/O interface 40, a SPI (serial peripheral equipment, serial peripheral interface) interface 50, an I2C (Inter-Integrated Circuit) interface 60, a power line 80, and be located at a microprocessor 10, a power supply module 70 of box house.
Described USB interface 20, serial line interface 30, digital I/O interface 40, SPI interface 50, I2C interface 60 all link to each other with described microcontroller 10.Described power supply module 70 links to each other with described power line 80, offers described USB interface 20, serial line interface 30, digital I/O interface 40, SPI interface 50, I2C interface 60 and microcontroller 10 work to receive external voltage by described power line 80 and to convert corresponding operating voltage to.
Described USB interface 20 is used to transmit the data that meet the usb bus agreement, and described serial line interface 30 is used to transmit the data of serial bus protocol, described digital I/O interface 40 and is used for the data of transmission of digital signals, described SPI interface 50 and is used to transmit the data that the data of spi bus agreement, described I2C interface 60 are used to transmit the I2C bus protocol.Described USB interface 20 and described serial line interface 30 are communication interface indispensable on the computer, and described digital I/O interface 40, SPI interface 50 and I2C interface are the communication interface that is of little use on the computer, described communication interface switching device 100 can become the data transaction of described digital I/O interface 40, SPI interface 50 and the transmission of I2C interface the data of transmission on described USB interface 20 or the described serial line interface 30, so that computer need not installed corresponding driving program and control software, just can receive the data of transmitting on described digital I/O interface 40, SPI interface 50 or the I2C interface.
Described microcontroller 10 inside are provided with the program of conversion variety of protocol data, promptly can make the data transaction of the usb bus agreement that described USB interface 20 receives become the data of other types and transfer out from corresponding communication interface by described program, for example the data transaction of usb bus agreement is become the data of spi bus agreement and from described SPI interface 50 interfaces output, otherwise also the data transaction of other types can be become the data of usb bus agreement and from described USB interface 20 outputs.Described program can also make the data transaction of the serial bus protocol of described serial line interface 30 receptions become the data of other types and transfer out from corresponding communication interface, for example the data transaction of serial bus protocol is become the data of spi bus agreement and from described SPI interface 50 interfaces output, otherwise also the data transaction of other types can be become the data of serial bus protocol and from described serial line interface 30 outputs.The concrete programming of described program can be write according to the transformational relation between the agreement of certain two kinds of needs data converted, owing to this technology those skilled in the art can write as the case may be, so locate no longer specifically to provide.In other execution modes, the data transaction that this program also can be designed to make another communication interface to receive becomes the data of other types, specifically can make amendment to program as required.
During application, described power line 80 is connected an external power source, described USB interface 20 is connected on any USB socket of a computer (not shown), if described computer needs and an external equipment by Digital Signals (as a plurality of relays) when communicating, control pin correspondence on the described external equipment can be connected on the corresponding pin of described digital I/O interface 40, described computer sent and met the control signal of usb bus agreement to described USB interface 20 this moment, described microcontroller 10 converts described control signal digital signal to and exports to described external equipment through described digital I/O interface 40, carry out corresponding action so that can control described external equipment, promptly described computer is controlled more easily to described external equipment by described communication interface switching device 100, and corresponding digital I/O interface and installation corresponding driving program and control software need be set separately (because USB interface or serial line interface are interfaces indispensable on the computer on described computer, and other interface is not an interface indispensable on the computer), can save cost greatly like this, and should use also very convenient.
More than be an example application, when described computer need be communicated by letter with the electronic equipment of other types,, very convenient as long as the interface of the corresponding described electronic equipment on the described communication interface switching device 100 is linked to each other with described electronic equipment.
Claims (7)
1. communication interface switching device, comprise a microcontroller, a USB interface and a digital I/O interface, described microcontroller links to each other with described USB interface and described digital I/O interface, described microcontroller is used to change the data of transmitting between described USB interface and the described digital I/O interface, so that the protocol requirement of the data fit corresponding interface that transmits on described USB interface and the described digital I/O interface.
2. communication interface switching device as claimed in claim 1, it is characterized in that: described communication interface switching device also comprises a serial line interface that links to each other with described microcontroller, described microcontroller also is used to change the data of transmitting between described USB interface and the described serial line interface, so that the protocol requirement of the data fit corresponding interface that transmits on described USB interface and the described serial line interface.
3. communication interface switching device as claimed in claim 1, it is characterized in that: described communication interface switching device also comprises a SPI interface that links to each other with described microcontroller, described microcontroller also is used to change the data of transmitting between described USB interface and the described SPI interface, so that the protocol requirement of the data fit corresponding interface that transmits on described USB interface and the described SPI interface.
4. communication interface switching device as claimed in claim 1, it is characterized in that: described communication interface switching device also comprises an I2C interface that links to each other with described microcontroller, described microcontroller also is used to change the data of transmitting between described USB interface and the described I2C interface, so that the protocol requirement of the data fit corresponding interface that transmits on described USB interface and the described I2C interface.
5. communication interface switching device, comprise a microcontroller, a serial line interface and a digital I/O interface, described microcontroller links to each other with described serial line interface and described digital I/O interface, described microcontroller is used to change the data of transmitting between described serial line interface and the described digital I/O interface, so that the protocol requirement of the data fit corresponding interface that transmits on described serial line interface and the described digital I/O interface.
6. communication interface switching device as claimed in claim 5, it is characterized in that: described communication interface switching device also comprises a SPI interface that links to each other with described microcontroller, described microcontroller also is used to change the data of transmitting between described serial line interface and the described SPI interface, so that the protocol requirement of the data fit corresponding interface that transmits on described serial line interface and the described SPI interface.
7. communication interface switching device as claimed in claim 5, it is characterized in that: described communication interface switching device also comprises an I2C interface that links to each other with described microcontroller, described microcontroller also is used to change the data of transmitting between described serial line interface and the described I2C interface, so that the protocol requirement of the data fit corresponding interface that transmits on described serial line interface and the described I2C interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103007733A CN102136664A (en) | 2010-01-27 | 2010-01-27 | Communication interface switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010103007733A CN102136664A (en) | 2010-01-27 | 2010-01-27 | Communication interface switching device |
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| CN102136664A true CN102136664A (en) | 2011-07-27 |
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| CN2010103007733A Pending CN102136664A (en) | 2010-01-27 | 2010-01-27 | Communication interface switching device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573957A (en) * | 2015-12-11 | 2016-05-11 | 中国电子科技集团公司第四十一研究所 | Measuring instrument programmable interface conversion system and method |
| CN111143262A (en) * | 2018-11-05 | 2020-05-12 | 致伸科技股份有限公司 | Switching device, instrument control system and instrument control method |
| CN113836076A (en) * | 2021-09-24 | 2021-12-24 | 深圳达人高科电子有限公司 | Exchanger capable of self-defining protocol line sequence |
| WO2023108553A1 (en) * | 2021-12-16 | 2023-06-22 | Intel Corporation | Message conversion and message passthrough between devices and a processor in a multi-panel computing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821697Y (en) * | 2005-09-16 | 2006-09-27 | 北京普析通用仪器有限责任公司 | Interface converter |
| CN2888537Y (en) * | 2006-04-19 | 2007-04-11 | 武汉电信器件有限公司 | A digital communication interface conversion module |
| CN201130376Y (en) * | 2007-12-19 | 2008-10-08 | 深圳市三旺通信技术有限公司 | Expander for USB multiple serial ports |
| CN201336031Y (en) * | 2008-10-31 | 2009-10-28 | 天津理工大学 | Wireless SPI-RS232 conversion device |
-
2010
- 2010-01-27 CN CN2010103007733A patent/CN102136664A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2821697Y (en) * | 2005-09-16 | 2006-09-27 | 北京普析通用仪器有限责任公司 | Interface converter |
| CN2888537Y (en) * | 2006-04-19 | 2007-04-11 | 武汉电信器件有限公司 | A digital communication interface conversion module |
| CN201130376Y (en) * | 2007-12-19 | 2008-10-08 | 深圳市三旺通信技术有限公司 | Expander for USB multiple serial ports |
| CN201336031Y (en) * | 2008-10-31 | 2009-10-28 | 天津理工大学 | Wireless SPI-RS232 conversion device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105573957A (en) * | 2015-12-11 | 2016-05-11 | 中国电子科技集团公司第四十一研究所 | Measuring instrument programmable interface conversion system and method |
| CN105573957B (en) * | 2015-12-11 | 2018-07-24 | 中国电子科技集团公司第四十一研究所 | A kind of measuring instrument programmable interface converting system and method |
| CN111143262A (en) * | 2018-11-05 | 2020-05-12 | 致伸科技股份有限公司 | Switching device, instrument control system and instrument control method |
| CN113836076A (en) * | 2021-09-24 | 2021-12-24 | 深圳达人高科电子有限公司 | Exchanger capable of self-defining protocol line sequence |
| WO2023108553A1 (en) * | 2021-12-16 | 2023-06-22 | Intel Corporation | Message conversion and message passthrough between devices and a processor in a multi-panel computing device |
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Application publication date: 20110727 |