CN1251542C - Interface device for use between redio communicaton module and terminal - Google Patents
Interface device for use between redio communicaton module and terminal Download PDFInfo
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- CN1251542C CN1251542C CN03121256.5A CN03121256A CN1251542C CN 1251542 C CN1251542 C CN 1251542C CN 03121256 A CN03121256 A CN 03121256A CN 1251542 C CN1251542 C CN 1251542C
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Abstract
The present invention relates to the technical field of mobile data communication, which more specifically discloses an interface device used between a wireless communication module and a terminal. The interface device comprises connectors which are arranged on the wireless communication module and the terminal in a one-to-one correspondence mode and subinterfaces connected among the connectors, subinterfaces comprise a power supply subinterface, a system control subinterface, a UART subinterface and an audio frequency subinterface, wherein the power supply subinterface is used for providing a power supply for the wireless communication module, the source of the power supply subinterface is an internal power supply of the terminal, the system control subinterface is used for carrying out the transmission of a full duplex control command between the wireless communication module and the terminal, the UART subinterface is used for carrying out full duplex serial communication between the wireless communication module and the terminal, and the audio frequency subinterface is used for the output and the input of audio signals between the wireless communication module and the terminal. The problems of complicated hardware interface and inconvenient use of wireless communication modules existing in the prior art are solved according to the present invention. The technology of the present invention is suitable for the field of mobile terminals.
Description
Technical field
The present invention relates to the technical field of mobile data communication, relate in particular to a kind of interface arrangement that is used between communication module and/or the communication equipment.
Background technology
The design of portable mobile termianl at present mainly contains dual mode: with the module mobile phone is example, a kind of is that the veneer of standard or double circuit plate structure are integrated peripheral circuit and comprised keyboard, LCD (Liquid Crystal Display, be LCD), SIM (Subscriber IdentityModule, i.e. subscriber identification module) card etc.; Another kind is to adopt wireless communication module to finish cell-phone function, promptly finish the transmitting-receiving of radiofrequency signal, the encoding and decoding and the protocol stack operation of baseband signal by stable ripe wireless communication module, peripheral circuit comprises that keyboard, LCD and SIM card etc. are assisted and expanded function is then finished by the interface arrangement of wireless communication module by terminal.The radio frequency and the baseband circuit design work of mobile phones design have been simplified like this, shorten the R﹠D cycle, be convenient to manufacturer and release new product faster, as long as and user has the wireless communication module of a plug type, just can use in the different terminal application platform such as module mobile phone, PDA (Personal DigitalAssistant, i.e. personal digital assistant), notebook computer.Therefore use wireless communication module design more and more widely in the portable mobile termianl at present.
But in the wireless communication module on the market, hardware interface setting and definition are worth improved place to conveniently using, meet to still have on the development in future now.The interface signal that all holding wires is comprised peripheral circuits such as keyboard, LCD, Charger (charger), SIM card such as some wireless communication module is all drawn from wireless communication module, causes the hardware interface of wireless communication module too complicated.Peripheral components such as the keyboard that can select of terminal research and development institution, LCD will be subjected to the restriction of wireless communication module hardware interface like this, might have influence on the fast-changing respond in market; And when using for PDA, notebook computer etc., these interfaces have also become the waste of resource.Though the other wireless communication module has been simplified some interfaces, also not to simplify most and optimize.Therefore according to the wireless communication module design and to the understanding of following portable terminal developing direction, need redefine a more convenient practical application, more succinct wireless communicaltion module access.
Summary of the invention
Main purpose of the present invention is a kind of succinct interface arrangement that is used between wireless communication module and the terminal that provides at the defective of the wireless communicaltion module access complexity that exists in the prior art.
In order to reach described purpose, the present invention is used for wireless communication module and interface arrangement between the terminal and comprises and correspondingly one by one be arranged on the connector on wireless communication module and the terminal and be connected in following sub-interface between the described connector:
The power supply sub-interface is used to wireless communication module that power supply is provided, and its source is the internal electric source of terminal;
System's control sub-interface is used for carrying out between wireless communication module and the terminal transmission of full duplex control order;
The UART sub-interface is used for carrying out between wireless communication module and the terminal serial communication of full duplex;
The audio frequency sub-interface is used for the output input of the audio signal between wireless communication module and the terminal.
The present invention is used for the function that interface arrangement between wireless communication module and the terminal can realize simplifying and optimizing the wireless communication module hardware interface, makes wireless communication module more convenient and practical.And less hardware interface connector both reduced the electric property requirement, was convenient to realize the miniaturization of module again, reduced cost to a certain extent.
The present invention will be illustrated by its specific embodiments and the drawings subsequently.
Description of drawings
Fig. 1 is the interface arrangement schematic diagram between wireless communication module and the terminal of being used for that adopts the integral type connector.
Fig. 2 is the interface arrangement schematic diagram between wireless communication module and the terminal of being used for that adopts split type connector.
Fig. 3 is the interface arrangement working state figure that is used between wireless communication module and the terminal.
Fig. 4 is auxiliary and expanded function software architecture figure.
Embodiment
The present invention proposes a kind of interface arrangement that is used between wireless communication module and the terminal, can make wireless communication module be applied to various terminals better, as handheld devices such as module mobile phone, PDA, notebook computer, more convenient realization voice communication and transfer of data.
Please refer to Fig. 1, shown in Figure 3, we at first learn about the interface arrangement that is used between wireless communication module and the terminal, and this interface arrangement comprises and followingly correspondingly one by one is arranged on the connector on wireless communication module and the terminal and is connected in sub-interface between the described connector:
1, power supply sub-interface is used to wireless communication module that power supply is provided, and its source is the internal electric source of terminal; Described power interface contains power supply signal line and the ground wire that is close to.Consider that wireless communication module electric current during launching can reach 2A moment, therefore the power supply signal line can connect the impact that one or more pins alleviate electric current on the pin, be close to every power supply signal line simultaneously and should arrange corresponding ground wire one by one, that is to say, power supply signal line and ground wire are cross-linked in adjacent pin, less to guarantee electric power loop, reduce the interference on the power supply.
2, system's control sub-interface is used for carrying out between wireless communication module and the terminal transmission of full duplex control order; Described system control interface contains the control signal wire that powers on, reseting controling signal line, wake-up signal line.This interface need power on and the reseting controling signal line so that terminal is carried out hardware controls to wireless communication module.Consider that simultaneously handheld device requires than higher power consumption, therefore wireless communication module or terminal often are in the sleep (sleep) or standby (standby) pattern of power saving in order to reduce power consumption, can increase to wake (wakeup) holding wire up and allow wireless communication module and terminal wake up mutually on hardware.
3, UART sub-interface is used for carrying out between wireless communication module and the terminal serial communication of full duplex; This interface can contain one the road or two-way UART passage according to actual conditions.One the tunnel except finishing the voice functions by the AT order, and also requirement can be surfed the Net by GPRS as Modem.Therefore except RXD, TXD data wire and CTS, RTS hardware flow control holding wire, DTR, DSR, CD, RI can use in the Modem of standard communication.Another road mainly is used in to be convenient to debugging and to follow the tracks of code in the production of wireless communication module and the test process, only need two data lines RXD, a TXD to get final product here.
Can realize communicating by letter between micro-control unit and the wireless communication module in the terminal by described system control interface and UART interface.
4, audio frequency sub-interface is used for the output input of the audio signal between wireless communication module and the terminal; Described audio interface contains one road MIC (Microphone, be microphone) difference input channel and one road SPK (Speaker, be loud speaker) the difference output channel, described MIC difference input channel contains two holding wires and ground wire that is close to, and described SPK difference output channel contains two holding wires and ground wire that is close to.Because audio signal is an analog signal, be interfered easily, so respectively at two ground wires of the other increase of holding wire.
5, in addition,, also ground wire can be between digital signal line, increased, ground wire can be increased around just described system control interface and the UART interface in order to reduce interference.
Interface arrangement should be noted in the described interface arrangement: described power interface and audio interface should be arranged in the two ends of described interface arrangement respectively.That is to say that power supply signal line and ground wire are arranged in an end of this interface arrangement, with the fluctuation that reduces power supply influence to other signal; Audio signal is responsive to interference ratio because be analog signal, so 4 holding wires in the audio interface and 2 ground wires should be arranged in the other end of this interface arrangement.In the middle of other digital signal line was arranged in, concrete order can be carried out part adjustment.
The concrete arrangement order of interface is as shown in the table:
| Interface name | Realize function | The holding wire title | Note |
| Power interface | Power supply is provided | The power supply signal line | |
| Ground wire | |||
| System control interface | The transmission control command | Control signal wire powers on | Power on or cut off the power supply |
| The reseting controling signal line | The radio communication mold that resets is fast | ||
| The wake-up signal line | Wireless communication module and terminal are waken up mutually | ||
| The UART interface | Serial communication | RXD0 | As AT order and standard Modem interface |
| TXD0 | |||
| CTS | |||
| RTS | |||
| DSR | |||
| DTR | |||
| RI | |||
| CD | |||
| RXD1 | Debugging or tracking code as wireless communication module | ||
| TXD1 | |||
| Ground wire (optional) | GND | ||
| Audio interface | The input and output audio signal | SPKP | The audio interface of differential signal is provided for external microphone and loud speaker |
| SPKN | |||
| GND | |||
| MICP | |||
| MICN | |||
| GND |
Be the specific explanations of some holding wires in the UART interface below:
RXD0, RXD1 (Received Data) computer receives data from Modem
TXD0, TXD1 (Transmitted Data) computer sends data to Modem
CTS (Clear To Send) clears data transmission
RTS (Request To Send) request msg sends
DSR (Data Set Ready) data communications equipment is ready, and promptly Modem is ready
DTR (Data Terminal Ready) data terminal equipment is ready, and promptly computer is ready
RI (Ring Indicator) has bell signal to the computer circular
CD (Carrier Detect) carrier wave detects, in order to confirm whether to receive the Modem carrier wave
Explained later is UART and AT order once.
So-called UART (Universal Asynchronous Receiver/Transmitter) is exactly universal asynchronous reception/transmitter, and Modem can carry out serial communication by it.UART is a chip of finishing serial and parallel conversion, is integrated in usually on the mainboard, and majority is the 16550AFN chip, and in fact UART is exactly a microcomputer, and it has independently clock and memory, is one of programmable hardware few in number on the mainboard.Because computer-internal adopts parallel data, can not directly be dealt into Modem to data, must just can carry out asynchronous transmission through the UART arrangement.
So-called AT order is a whole set of instruction that Modem is programmed of Hayes release then, be specifically designed to the operations of computer control Modem, these orders are used to control communication and other function of Modem, comprising: initialization, dialing, break, be provided with the factory default value, first-selected agreement and connection speed or the like are set.Owing to each instruction all is to take the lead with " AT " to gain the name, AT is the abbreviation of English ATtention, and expression reminds Modem to note.
The connector of this interface arrangement can be the integral type connector, promptly corresponding on wireless communication module and the terminal a pair of connector is set, as shown in Figure 1.
The connector of this interface arrangement can be split type connector, promptly correspondingly on wireless communication module and the terminal is provided with two pairs or many to sub connector, as shown in Figure 2.
The connector of this interface arrangement can adopt multiple mode, arrives board-like connector etc. as reed-type connector, contact pin type connector, plate.
Be example with built-in SIM card wireless communication module below, it mainly finishes controlled function such as system's setting, voice connection as the GSM/GPRS communication module by standard AT command.The UART interface can be used as the Modem interface of standard simultaneously, realizes the function of wireless Modem.For peripheral circuit, mainly comprise auxiliary and expanded function such as keyboard, LCD and SIM card, owing to SIM card has placed in the wireless communication module, so interface quantity has been simplified relatively.
Because the interface of hardware is simplified as far as possible, some auxiliary or expanded functions such as corresponding keyboard, LCD can be ordered by AT and be realized.Specifically in the realization of software, shown in Fig. 4 software block diagram:
AT command handling procedure: can receive and handle the application program of AT order, and under the control of AT order, can carry out the transmission of data;
The AT command interpreter: explain the AT order that receives from terminal, do corresponding processing after, send corresponding message to lower floor's software; Be responsible for simultaneously receiving message, handle accordingly, be packaged into corresponding AT order and send to terminal from lower floor.
Therefore corresponding auxiliary and expanded function, we can increase the explosion command and the executive program of corresponding function by revising AT command handling procedure and AT command interpreter unit, do not revise hardware interface thereby reach, and can finish the function corresponding expansion.
The present invention is used for the interface arrangement between wireless communication module and the terminal and has simplified interface pin quantity greatly owing to removed the holding wire of peripheral circuits such as keyboard, LCD, SIM card, and less hardware interface connector had both reduced the electric property requirement, be convenient to realize the miniaturization of module again, reduced cost to a certain extent.Succinct interface arrangement makes the exploitation of wireless communication module use more quick and convenient.
Should be noted that at last: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only; although the present invention is had been described in detail with reference to the foregoing description; but without departing from the spirit and scope of the present invention by those of ordinary skill in the art; can do various modifications or local the replacement, so protection scope of the present invention is as the criterion with the scope that claims define.
Claims (10)
1, a kind of interface arrangement that is used between wireless communication module and the terminal is characterized in that, described interface arrangement comprises one by one and correspondingly to be arranged on the connector on wireless communication module and the terminal and to be connected in following sub-interface between the described connector:
The power supply sub-interface is used to wireless communication module that power supply is provided, and its source is the internal electric source of terminal;
System's control sub-interface is used for carrying out between wireless communication module and the terminal transmission of full duplex control order;
The UART sub-interface is used for carrying out between wireless communication module and the terminal serial communication of full duplex;
The audio frequency sub-interface is used for the output input of the audio signal between wireless communication module and the terminal.
2, the interface arrangement that is used between wireless communication module and the terminal as claimed in claim 1 is characterized in that: described connector is the integral type connector.
3, the interface arrangement that is used between wireless communication module and the terminal as claimed in claim 1 is characterized in that: described connector is split type connector.
4, as claim 2 or the 3 described interface arrangements that are used between wireless communication module and the terminal, it is characterized in that: described power supply sub-interface and audio frequency sub-interface are arranged in the two ends of described interface arrangement respectively.
5, as claim 2 or the 3 described interface arrangements that are used between wireless communication module and the terminal, it is characterized in that: described power supply sub-interface contains power supply signal line and the ground wire that is close to.
6, as claim 2 or the 3 described interface arrangements that are used between wireless communication module and the terminal, it is characterized in that: described system control sub-interface contains the control signal wire that powers on, reseting controling signal line, wake-up signal line.
7, as claim 2 or the 3 described interface arrangements that are used between wireless communication module and the terminal, it is characterized in that: described UART sub-interface comprises one road UART passage, and described one road UART passage contains RXDO, TXDO, CTS, RTS, DSR, DTR, RI, CD holding wire.
8, the interface arrangement that is used between wireless communication module and the terminal as claimed in claim 7, it is characterized in that: described UART sub-interface comprises another road UART passage simultaneously, described another road UART passage comprises RXD1, TXD1 holding wire, is used for producing and test debugging and tracking code.
9, as claim 2 or the 3 described interface arrangements that are used between wireless communication module and the terminal, it is characterized in that: described audio frequency sub-interface contains one road MIC difference input channel and one road SPK difference output channel, described MIC difference input channel contains two holding wires and ground wire that is close to, and described SPK difference output channel contains two holding wires and ground wire that is close to.
10, as claim 2 or the 3 described interface arrangements that are used between wireless communication module and the terminal, it is characterized in that: increase ground wire around described system control sub-interface and the UART sub-interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03121256.5A CN1251542C (en) | 2003-03-31 | 2003-03-31 | Interface device for use between redio communicaton module and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN03121256.5A CN1251542C (en) | 2003-03-31 | 2003-03-31 | Interface device for use between redio communicaton module and terminal |
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| Publication Number | Publication Date |
|---|---|
| CN1535053A CN1535053A (en) | 2004-10-06 |
| CN1251542C true CN1251542C (en) | 2006-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN03121256.5A Expired - Fee Related CN1251542C (en) | 2003-03-31 | 2003-03-31 | Interface device for use between redio communicaton module and terminal |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100385982C (en) * | 2005-07-22 | 2008-04-30 | 杭州斯达康通讯有限公司 | Double mode communication terminal and its control method |
| KR100753974B1 (en) * | 2006-01-05 | 2007-08-31 | 주식회사 텔레칩스 | Audio system |
| CN101030975B (en) * | 2007-02-15 | 2010-05-26 | 重庆重邮信科通信技术有限公司 | Processing method for increasing responding speed of protocol AT commands |
| CN104527550B (en) * | 2014-12-15 | 2017-05-03 | 浙江吉利汽车研究院有限公司 | Method and system for HUD (Head Up Display) information interaction |
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Owner name: LIANXIANG (BEIJING) CO. LTD.; HUMANTEC INDUSTRIAL Free format text: FORMER OWNER: LIANXIANG (BEIJING) CO. LTD. Effective date: 20081017 |
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Effective date of registration: 20081017 Address after: No. 6, Pioneer Road, Beijing, Haidian District: 100085 Co-patentee after: Lenovo Mobile Communication Technology Ltd. Patentee after: Lenovo (Beijing) Co., Ltd. Address before: No. 6, Pioneer Road, Haidian District information industry base, Beijing, China: 100085 Patentee before: Lenovo (Beijing) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20060412 Termination date: 20210331 |