CN103294626A - Design of USB dual-mode interface equipment for UART acquisition terminal - Google Patents
Design of USB dual-mode interface equipment for UART acquisition terminal Download PDFInfo
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- CN103294626A CN103294626A CN2012103578796A CN201210357879A CN103294626A CN 103294626 A CN103294626 A CN 103294626A CN 2012103578796 A CN2012103578796 A CN 2012103578796A CN 201210357879 A CN201210357879 A CN 201210357879A CN 103294626 A CN103294626 A CN 103294626A
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Abstract
The invention discloses USB (universal serial bus) dual-mode interface equipment for a UART (universal asynchronous receiver/transmitter) acquisition terminal, which is mainly characterized in that the acquisition terminal configured with a UART-USB Slave/Device dual-mode interface module is connected with embedded intelligent equipment such as a mobile telephone and a tablet computer by a USB Host Device interface in a UART interface manner; the acquisition terminal is connected with an embedded control platform such as a PC (personal computer) and a set top box through a USB Slave Device port; and communication is performed in an HID (human interface device) protocol manner to realize data transmission. Therefore, the development of a serial port-USB driver on an embedded operating system platform such as Android, Wince and Windows is avoided. The interface equipment facilitates USB connection and data acquisition between multi-platform equipment such as the mobile telephone, the tablet computer and the PC, and the acquisition terminal in the UART interface manner for a user.
Description
Technical field
The present invention relates to data acquisition, checkout equipment field, specifically is a kind of interfacing equipment that converts USB Host/Slave bimodulus mode from the UART interface mode to of uploading for the signal detection process sampled data.
Background technology
Along with the development of mechanics of communication and ic core chip technology, the USB chip has been widely used in the data communication of electric room.Most of data sampling terminal can be connected with PC is convenient by changeing serial port chip as special-purpose USB such as CH341, CP2102.But along with the development of embedded intelligent equipment such as mobile phone, panel computer and embedded OSs such as Android, Wince, increasing user wishes to control with data sampling the sampling terminal by embedded intelligent terminals such as mobile phones and monitors.This just need increase USB Host interface in original employing terminal and support to realize support to embedded intelligent terminals such as mobile phones and its exchanges data.The chip of existing a lot of USB bimodulus patterns is many to be connected with the mode of parallel port and the MCU of sampling terminal, needs manufacturer to realize USB chip bottom layer driving is supported.A lot of sampling manufacturer terminals are to the control mode of the data transmission of USB and be unfamiliar with, and this increases design and difficulty in certain program.The manufacturer that has can increase a USB module again and realize the mobile phone support between mobile phone and equipment, thereby increases the redundancy of cost and system.
Summary of the invention
The objective of the invention is to solve the problem that two kinds of USB embedded intelligent equipments of above-mentioned sampling terminal and principal and subordinate exist in being connected, propose to use one chip to realize that UART converts the Host/Slave bimodulus interfacing equipment of USB to.
The USB bimodulus interfacing equipment of the UART sampling terminal that the present invention proposes, its main control chip are that the Vinculum II chip with FTDI company is switching controller, open two USB port simultaneously, and be configured to Host and Slave pattern respectively.Modular converter sends the USB end data to the UART interface, thereby realizes carrying out data acquisition and control in the mode of USB with the sampling terminal device.Sampling terminal device manufacturer need not carry out the Host of USB and the technological development of Slave interface function at the MCU end like this, only need continue to keep the data transfer mode of UART in equipment end.
Whether there is Device equipment to insert on the interruption monitoring facilities monitoring port of Host port, realization is to the initiation that communication is shaken hands with USB device of enumerating of equipment, and makes between UART end and the USB end sampled data and control data transmit transmission at equipment room by Host conversion transmission procedure.Whether the interruption of Slave port monitoring has main process equipment to initiate data or command request, and makes between UART end and the USB end sampled data and control data transmit transmission at equipment room by Slave conversion transmission procedure.
After the present invention adopts above-mentioned technology that the data-switching of the UART communication modes of data sampling terminal is become the transmission mode of USB, USB port is carried out communication with the HID protocol mode, the HID of USB is the moving support of free drive under Android, Wince existing on the embedded intelligent equipment ends such as PC end, mobile phone, panel computer, Window system, is convenient to the exploitation that the user carries out application program.
Description of drawings
Fig. 1 is device structure synoptic diagram of the present invention;
Fig. 2 is that UART of the present invention changes USB dual interface circuit figure.
Embodiment
Specific embodiment in conjunction with above-mentioned accompanying drawing 1-2 explanation invention.
The present invention as shown in Figure 1, the USB bimodulus interfacing equipment of the UART of proposition sampling terminal is open two USB port simultaneously, and are configured to Host and Slave pattern respectively, and open UART communication interface, are connected with embedded intelligent equipment.
Fig. 2 UART changes USB dual interface circuit figure, and its main control chip is that the Vinculum II chip with FTDI company is switching controller.Its 25USB1DM and the 26USB1DP pin data-interface as HOST USB end, 29USB2DM and 28USB2DP pin be as the data-interface of Slave USB end on the hardware, thereby realize being connected with principal and subordinate's embedded intelligent equipment USB.Common IO mouth 31 is become TXD and the RXD port of UART interface with 32 pin configuration, thereby realize being connected with the UART mode of sampling terminal.
Behind the module electrifying startup, at first HOST and Slave port are carried out initial configuration.Whether there is Device equipment to insert then on the interruption monitoring facilities monitoring port of Host port, realization is to the initiation that communication is shaken hands with USB device of enumerating of equipment, and makes between UART end and the USB end sampled data and control data transmit transmission at equipment room by Host conversion transmission procedure.Whether the interruption of Slave port monitoring has main process equipment to initiate data or command request, and makes between UART end and the USB end sampled data and control data transmit transmission at equipment room by Slave conversion transmission procedure.Be identified as HID equipment at Android, Wince embedded OS descending device, and by HID data read mode equipment carried out uploading and handling of data acquisition in PC, mobile phone, panel computer end application program.
Claims (3)
1. design at the USB bimodulus interfacing equipment of UART acquisition terminal, it is characterized in that: the sampling terminal device links to each other with the conversion and control chip module that UART changes USB by the communication modes of UART, according to the type of Host USB interface embedded intelligence platform such as the PC that connects, set-top box or Slave USB interface embedded intelligent equipments such as mobile phone, panel computer, sampled data is converted to the USB communication modes of the master/slave arrangement of corresponding HID agreement from the communication modes of UART then.
2. UART according to claim 1 changes the conversion and control chip module of USB, it is characterized in that: adopt the FTDI twoport USB of company conversion chip Vinculum II to change the conversion and control chip of USB as UART, the UART communication modes is converted to Host USB and two kinds of interface modes of Slave USB simultaneously, makes sample devices have compatibility in USB interface.
3. after module powers on two USB port are configured to Host and Slave pattern respectively, whether there is Device equipment to insert on the interruption monitoring facilities monitoring port of Host port, realization is to the initiation that communication is shaken hands with USB device of enumerating of equipment, and makes between UART end and the USB end sampled data and control data transmit transmission at equipment room by Host conversion transmission procedure.Whether the interruption of Slave port monitoring has main process equipment to initiate data or command request, and makes between UART end and the USB end sampled data and control data transmit transmission at equipment room by Slave conversion transmission procedure.The Android that uses the user under the embedded OSs such as Wince, at being to carry out reading of communication and data with the HID agreement of USB between the USB bimodulus interfacing equipment of UART acquisition terminal and the application software, is convenient to the user and is developed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103578796A CN103294626A (en) | 2012-09-24 | 2012-09-24 | Design of USB dual-mode interface equipment for UART acquisition terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012103578796A CN103294626A (en) | 2012-09-24 | 2012-09-24 | Design of USB dual-mode interface equipment for UART acquisition terminal |
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| CN103294626A true CN103294626A (en) | 2013-09-11 |
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| CN2012103578796A Pending CN103294626A (en) | 2012-09-24 | 2012-09-24 | Design of USB dual-mode interface equipment for UART acquisition terminal |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104077255A (en) * | 2013-12-29 | 2014-10-01 | 国家电网公司 | Method for terminal to communicate with computer through USB |
| CN104836877A (en) * | 2015-02-10 | 2015-08-12 | 数据通信科学技术研究所 | Method for debugging and detecting mobile phone |
| CN105242603A (en) * | 2015-10-22 | 2016-01-13 | 宁波三星医疗电气股份有限公司 | Power collection terminal with USB OTG interface and debugging upgrade method thereof |
| CN106919529A (en) * | 2017-03-06 | 2017-07-04 | 南京新联电子股份有限公司 | The wireless communication module method for designing for supporting USB and UART serial ports compatible |
| CN107450408A (en) * | 2017-09-06 | 2017-12-08 | 深圳增强现实技术有限公司 | A kind of system and method for sensor plug and play |
| WO2018107491A1 (en) * | 2016-12-16 | 2018-06-21 | 华为技术有限公司 | Data transmission method and device |
| TWI695270B (en) * | 2018-08-29 | 2020-06-01 | 財團法人工業技術研究院 | Indication apparatus , composable indication system and indication method |
| CN112235078A (en) * | 2020-10-14 | 2021-01-15 | 四川长虹教育科技有限公司 | Method for realizing Android and Windows communication under intelligent interactive large screen |
| CN112579500A (en) * | 2020-12-08 | 2021-03-30 | 深圳市道通科技股份有限公司 | Method and device for prompting anti-misplug USB interface and electronic equipment |
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| CN202433896U (en) * | 2011-12-23 | 2012-09-12 | 比亚迪股份有限公司 | Serial port converter |
| CN203276264U (en) * | 2012-09-24 | 2013-11-06 | 天津思博科科技发展有限公司 | Equipment for conversion from UART interface to USB dual mode interface |
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| CN101369259A (en) * | 2008-09-05 | 2009-02-18 | 深圳创维数字技术股份有限公司 | Switch control method and apparatus and electronic equipment for USB interface master-salve equipment mode |
| CN201887794U (en) * | 2010-12-17 | 2011-06-29 | 中国科学院计算技术研究所 | Gateway of internet of things |
| CN202433896U (en) * | 2011-12-23 | 2012-09-12 | 比亚迪股份有限公司 | Serial port converter |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104077255A (en) * | 2013-12-29 | 2014-10-01 | 国家电网公司 | Method for terminal to communicate with computer through USB |
| CN104836877A (en) * | 2015-02-10 | 2015-08-12 | 数据通信科学技术研究所 | Method for debugging and detecting mobile phone |
| CN105242603A (en) * | 2015-10-22 | 2016-01-13 | 宁波三星医疗电气股份有限公司 | Power collection terminal with USB OTG interface and debugging upgrade method thereof |
| CN105242603B (en) * | 2015-10-22 | 2017-11-28 | 宁波三星医疗电气股份有限公司 | A kind of electric power acquisition terminal and its debugging upgrade method with USB OTG interfaces |
| WO2018107491A1 (en) * | 2016-12-16 | 2018-06-21 | 华为技术有限公司 | Data transmission method and device |
| CN108701106A (en) * | 2016-12-16 | 2018-10-23 | 华为技术有限公司 | A kind of data transmission method and equipment |
| CN106919529A (en) * | 2017-03-06 | 2017-07-04 | 南京新联电子股份有限公司 | The wireless communication module method for designing for supporting USB and UART serial ports compatible |
| CN107450408A (en) * | 2017-09-06 | 2017-12-08 | 深圳增强现实技术有限公司 | A kind of system and method for sensor plug and play |
| TWI695270B (en) * | 2018-08-29 | 2020-06-01 | 財團法人工業技術研究院 | Indication apparatus , composable indication system and indication method |
| CN112235078A (en) * | 2020-10-14 | 2021-01-15 | 四川长虹教育科技有限公司 | Method for realizing Android and Windows communication under intelligent interactive large screen |
| CN112579500A (en) * | 2020-12-08 | 2021-03-30 | 深圳市道通科技股份有限公司 | Method and device for prompting anti-misplug USB interface and electronic equipment |
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Application publication date: 20130911 |