CN112286561A - Firmware upgrading method and device for touch equipment - Google Patents
Firmware upgrading method and device for touch equipment Download PDFInfo
- Publication number
- CN112286561A CN112286561A CN202011136981.4A CN202011136981A CN112286561A CN 112286561 A CN112286561 A CN 112286561A CN 202011136981 A CN202011136981 A CN 202011136981A CN 112286561 A CN112286561 A CN 112286561A
- Authority
- CN
- China
- Prior art keywords
- host
- upgrading
- slave
- firmware
- instruction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
- G06F8/654—Updates using techniques specially adapted for alterable solid state memories, e.g. for EEPROM or flash memories
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/70—Software maintenance or management
- G06F8/71—Version control; Configuration management
Abstract
The invention relates to the technical field of touch, and discloses a firmware upgrading method and device of touch equipment.
Description
Technical Field
The invention relates to the technical field of touch, in particular to a firmware upgrading method and device for touch equipment.
Background
At present, a double-mcu double-usb scheme is used for existing touch devices (for example, infrared touch screens), a usb communication interface at a host end is agreed to be usb1, a usb communication interface at a slave end is agreed to be usb2, and firmware upgrading needs to be carried out and merged, that is, the slave and the host firmware are merged and upgraded, data is forwarded to the slave by the host for upgrading, and firmware upgrading cannot be realized from the slave end.
Disclosure of Invention
The embodiment of the invention aims to provide a firmware upgrading method and device for touch equipment, which can realize firmware upgrading through a slave terminal.
In order to solve the foregoing technical problem, an embodiment of the present invention provides a firmware upgrading method for a touch device, where the touch device includes a host end and a slave end, and the firmware upgrading method for the touch device includes:
establishing communication connection between a slave terminal and a PC terminal;
the slave terminal responds to an upgrading starting instruction sent by the PC terminal and replies version information to the PC terminal so that the PC terminal sends an upgrading enabling instruction to the slave terminal according to the version information;
when an upgrading object in the upgrading enabling instruction is a host end, the slave machine forwards the upgrading enabling instruction to the host and receives a host firmware data packet acquisition instruction returned by the host machine;
and forwarding the host firmware data packet acquisition command returned by the host to the PC end, and forwarding the host firmware data packet returned by the PC end to the host so that the host can be upgraded according to the host firmware data packet.
As a preferred scheme, after the slave responds to an upgrade start instruction sent by the PC, and replies version information to the PC, so that the PC sends an upgrade enable instruction to the slave according to the version information, the method further includes:
when the upgrading object in the upgrading enabling instruction is the slave computer end, the slave computer sends a slave computer firmware data packet acquisition instruction to the PC end and receives a slave computer firmware data packet returned by the PC end;
the slave upgrades the firmware according to the slave firmware data packet;
and after the slave finishes the firmware upgrading, the slave sets the upgrading flag state to be a normal starting state and replies an upgrading ending instruction to the PC terminal.
As a preferred scheme, after the step of forwarding the host firmware packet acquisition instruction returned by the host to the PC side and forwarding the host firmware packet returned by the PC side to the host so that the host performs upgrading according to the host firmware packet, the method further includes:
the slave machine receives a host machine upgrading ending instruction sent by the host machine;
the slave sets the upgrading flag state to be a normal starting state and replies an upgrading ending instruction to the PC terminal.
Preferably, the slave is connected with the PC end through a USB interface.
Preferably, the slave machine and the host machine communicate through the SPI.
In order to solve the same technical problem, an embodiment of the present invention further provides a firmware upgrading apparatus for a touch device, where the touch device includes a host end and a slave end, and the control apparatus for the touch device includes:
the communication module is used for establishing communication connection between the slave terminal and the PC terminal;
the reply module is used for responding to an upgrading starting instruction sent by the PC end from the slave end and replying version information to the PC end so that the PC end sends an upgrading enabling instruction to the slave end according to the version information;
the instruction forwarding module is used for forwarding the upgrade enabling instruction to the host by the slave and receiving a host firmware data packet acquisition instruction returned by the host when an upgrade object in the upgrade enabling instruction is the host end;
and the data packet forwarding module is used for forwarding the host firmware data packet acquisition command returned by the host to the PC end and forwarding the host firmware data packet returned by the PC end to the host so as to upgrade the host according to the host firmware data packet.
Preferably, the firmware upgrading apparatus for a touch device further includes:
the data packet acquisition module is used for sending a slave firmware data packet acquisition instruction to the PC end by the slave machine and receiving a slave firmware data packet returned by the PC end when an upgrading object in the upgrading enabling instruction is the slave machine end;
the slave upgrading module is used for upgrading the firmware according to the slave firmware data packet by the slave;
and the first upgrading ending module is used for setting the upgrading flag state to be a normal starting state and replying an upgrading ending instruction to the PC end by the slave machine after the slave machine finishes firmware upgrading.
As a preferred scheme, after the step of forwarding the host firmware packet acquisition instruction returned by the host to the PC side and forwarding the host firmware packet returned by the PC side to the host so that the host performs upgrading according to the host firmware packet, the method further includes:
the system comprises an ending instruction receiving module, a host upgrading ending instruction receiving module and a host upgrading ending module, wherein the host upgrading ending instruction is sent by a host;
and the second upgrading ending module is used for setting the upgrading flag state to be a normal starting state by the slave computer and replying an upgrading ending instruction to the PC terminal.
Preferably, the slave is connected with the PC end through a USB interface.
Preferably, the slave machine and the host machine communicate through the SPI.
Compared with the prior art, the embodiment of the invention has the beneficial effects that: the embodiment of the invention provides a firmware upgrading method of touch equipment, which comprises the steps that communication connection between a slave machine end and a PC end is established, the slave machine end responds to an upgrading starting instruction sent by the PC end and replies version information to the PC end so that the PC end sends an upgrading enabling instruction to the slave machine end according to the version information, when an upgrading object in the upgrading enabling instruction is a master machine end, the slave machine forwards the upgrading enabling instruction to a master machine and receives a master machine firmware data packet obtaining instruction returned by the master machine, the master machine firmware data packet obtaining instruction returned by the master machine is forwarded to the PC end, the master machine firmware data packet returned by the PC end is forwarded to the master machine so that the master machine can be upgraded according to the master machine firmware data packet, and therefore firmware upgrading can be achieved through the slave machine end. Meanwhile, the embodiment of the invention also correspondingly provides a firmware upgrading device of the touch equipment.
Drawings
FIG. 1 is a flowchart of one embodiment of a firmware upgrade method for a touch device provided by the present invention;
FIG. 2 is a data flow diagram illustrating a firmware upgrading method for a touch device according to the present invention;
FIG. 3 is a flowchart of another embodiment of a firmware upgrade method for a touch device provided in the present invention;
FIG. 4 is a flow chart of a firmware upgrade implemented by a host;
FIG. 5 is a data flow diagram illustrating firmware upgrade by a host;
fig. 6 is a block diagram of a firmware upgrading apparatus of a touch device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
With reference to fig. 1 to fig. 3, an embodiment of the present invention provides a firmware upgrading method for a touch device, where the touch device includes a host side and a slave side, and the firmware upgrading method for the touch device includes:
step S101, establishing communication connection between a slave end and a PC end;
step S102, the slave responds to an upgrade starting instruction sent by the PC, and replies version information to the PC so that the PC sends an upgrade enabling instruction to the slave according to the version information;
step S103, when the upgrading object in the upgrading enabling instruction is the host end, the slave machine forwards the upgrading enabling instruction to the host and receives a host firmware data packet acquisition instruction returned by the host machine;
and step S104, forwarding the host firmware data packet acquisition command returned by the host to the PC end, and forwarding the host firmware data packet returned by the PC end to the host so that the host can be upgraded according to the host firmware data packet.
In the embodiment of the invention, by establishing the communication connection between the slave machine end and the PC end, the slave machine end responds to an upgrade starting instruction sent by the PC end and replies version information to the PC end so that the PC end sends an upgrade enabling instruction to the slave machine end according to the version information, when an upgrade object in the upgrade enabling instruction is the master machine end, the slave machine forwards the upgrade enabling instruction to the master machine and receives a master machine firmware data packet acquisition instruction returned by the master machine, the master machine firmware data packet acquisition instruction returned by the master machine is forwarded to the PC end, and the master machine firmware data packet returned by the PC end is forwarded to the master machine so that the master machine carries out upgrade according to the master machine firmware data packet, thereby realizing firmware upgrade through the slave machine end.
In an optional implementation manner, after the step S102 that the slave device replies version information to the PC device in response to the upgrade start instruction sent by the PC device, so that the PC device sends an upgrade enable instruction to the slave device according to the version information, "the method further includes:
when the upgrading object in the upgrading enabling instruction is the slave computer end, the slave computer sends a slave computer firmware data packet acquisition instruction to the PC end and receives a slave computer firmware data packet returned by the PC end;
the slave upgrades the firmware according to the slave firmware data packet;
and after the slave finishes the firmware upgrading, the slave sets the upgrading flag state to be a normal starting state and replies an upgrading ending instruction to the PC terminal.
In the specific implementation, the PC side sends the slave firmware data packets to the slave one by one, and after the slave receives the firmware data, the firmware data is written into the flash until the last packet of data is received.
In an optional implementation manner, after the step S104 "forward the host firmware packet obtaining instruction returned by the host to the PC side, and forward the host firmware packet returned by the PC side to the host, so that the host performs upgrading according to the host firmware packet", the method further includes:
the slave machine receives a host machine upgrading ending instruction sent by the host machine;
the slave sets the upgrading flag state to be a normal starting state and replies an upgrading ending instruction to the PC terminal.
In the specific implementation, the PC terminal sequentially sends a host firmware data packet to the slave, and after the slave receives the firmware data, the slave sends the host firmware data packet to the host for firmware upgrade until a host upgrade ending instruction is received.
Specifically, the slave is connected with the PC end through a USB interface, and the slave and the host communicate through the SPI.
The following describes in detail a firmware upgrading method for touch devices provided by an embodiment of the present invention:
1. the PC end initiates upgrading, the slave end receives an upgrading starting instruction, the slave end replies a version number and enters an upgrading process;
2. judging whether the slave computer side or the host computer side is upgraded;
3. the upgrading host side transmits the upgrading data to the host side for upgrading through SPI communication transmission;
4. upgrading the slave end, and directly writing firmware data into the flash;
5. and receiving a host upgrading ending command, modifying the starting mark and finishing upgrading.
As shown in fig. 4 and fig. 5, in a specific application, when the USB interface of the host is connected to the PC, the firmware upgrade can be implemented by the host, that is, the host forwards data to the slave for upgrade. In addition, as shown in fig. 2, the embodiment of the present invention implements the second channel of USB upgrading function, where the upgrading data flows from the PC end to the slave MCU through the USB2 and then to the host MCU, and is compatible with the original upgrading file format, so that the product has the function of upgrading two channels of USB. Besides, the host upgrading function of the slave is added on the basis of the original host upgrading function of the slave, and the file protocol format of the existing merged firmware is adapted. In addition, in order to be compatible with the existing merged firmware format, the host side can be upgraded first and then the slave side can be upgraded, namely, the host upgrading data is forwarded first.
Compared with the prior art, the embodiment of the invention can upgrade through the USB communication interface of the slave end when upgrading the firmware, reduce the difference of two-way communication USB functions, and improve the usability of the touch device (for example, one of the two ways of USB can be randomly selected for upgrading, when a product is used, the slave end can be directly upgraded if being connected with the PC end, in the prior art, if the host USB is connected with the android end, and the slave USB end is connected with the PC end, a file needs to be copied into the android end, or the host USB is pulled down and inserted into the PC end.
Referring to fig. 6, correspondingly, an embodiment of the present invention further provides a firmware upgrading apparatus for a touch device, where the touch device includes a host end and a slave end, and the control apparatus for the touch device includes:
a communication module 10, configured to establish a communication connection between a slave end and a PC end;
the reply module 20 is configured to reply version information to the PC end from the slave end in response to the upgrade start instruction sent by the PC end, so that the PC end sends an upgrade enable instruction to the slave end according to the version information;
the instruction forwarding module 30 is configured to, when an upgrade object in the upgrade enabling instruction is a host end, forward the upgrade enabling instruction to the host by the slave, and receive a host firmware data packet acquisition instruction returned by the host;
and the data packet forwarding module 40 is configured to forward the host firmware data packet acquisition instruction returned by the host to the PC side, and forward the host firmware data packet returned by the PC side to the host, so that the host performs upgrading according to the host firmware data packet.
In an optional implementation manner, the firmware upgrading apparatus of the touch device further includes:
the data packet acquisition module is used for sending a slave firmware data packet acquisition instruction to the PC end by the slave machine and receiving a slave firmware data packet returned by the PC end when an upgrading object in the upgrading enabling instruction is the slave machine end;
the slave upgrading module is used for upgrading the firmware according to the slave firmware data packet by the slave;
and the first upgrading ending module is used for setting the upgrading flag state to be a normal starting state and replying an upgrading ending instruction to the PC end by the slave machine after the slave machine finishes firmware upgrading.
In an optional implementation manner, after the forwarding the host firmware packet obtaining instruction returned by the host to the PC side and forwarding the host firmware packet returned by the PC side to the host, so that the host performs upgrading according to the host firmware packet, the method further includes:
the system comprises an ending instruction receiving module, a host upgrading ending instruction receiving module and a host upgrading ending module, wherein the host upgrading ending instruction is sent by a host;
and the second upgrading ending module is used for setting the upgrading flag state to be a normal starting state by the slave computer and replying an upgrading ending instruction to the PC terminal.
In an alternative embodiment, the slave is connected to the PC via a USB interface.
In an alternative embodiment, the slave and the master communicate via SPI.
It should be noted that, the firmware upgrading apparatus for touch device provided in the embodiment of the present invention is used to execute all the process steps of the firmware upgrading method for touch device in the above embodiment, and the working principles and beneficial effects of the two are in one-to-one correspondence, so that no further description is given.
It should be noted that the above-described device embodiments are merely illustrative, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. In addition, in the drawings of the embodiment of the apparatus provided by the present invention, the connection relationship between the modules indicates that there is a communication connection between them, and may be specifically implemented as one or more communication buses or signal lines. One of ordinary skill in the art can understand and implement it without inventive effort.
Compared with the prior art, the embodiment of the invention has the beneficial effects that: the embodiment of the invention provides a firmware upgrading method of touch equipment, which comprises the steps that communication connection between a slave machine end and a PC end is established, the slave machine end responds to an upgrading starting instruction sent by the PC end and replies version information to the PC end so that the PC end sends an upgrading enabling instruction to the slave machine end according to the version information, when an upgrading object in the upgrading enabling instruction is a master machine end, the slave machine forwards the upgrading enabling instruction to a master machine and receives a master machine firmware data packet obtaining instruction returned by the master machine, the master machine firmware data packet obtaining instruction returned by the master machine is forwarded to the PC end, the master machine firmware data packet returned by the PC end is forwarded to the master machine so that the master machine can be upgraded according to the master machine firmware data packet, and therefore firmware upgrading can be achieved through the slave machine end. Meanwhile, the embodiment of the invention also correspondingly provides a firmware upgrading device of the touch equipment.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The firmware upgrading method of the touch equipment is characterized in that the touch equipment comprises a host end and a slave end, and the firmware upgrading method of the touch equipment comprises the following steps:
establishing communication connection between a slave terminal and a PC terminal;
the slave terminal responds to an upgrading starting instruction sent by the PC terminal and replies version information to the PC terminal so that the PC terminal sends an upgrading enabling instruction to the slave terminal according to the version information;
when an upgrading object in the upgrading enabling instruction is a host end, the slave machine forwards the upgrading enabling instruction to the host and receives a host firmware data packet acquisition instruction returned by the host machine;
and forwarding the host firmware data packet acquisition command returned by the host to the PC end, and forwarding the host firmware data packet returned by the PC end to the host so that the host can be upgraded according to the host firmware data packet.
2. The firmware upgrading method of the touch device as claimed in claim 1, wherein after the slave device replies version information to the PC device in response to an upgrade start instruction sent by the PC device, so that the PC device sends an upgrade enable instruction to the slave device according to the version information, the method further comprises:
when the upgrading object in the upgrading enabling instruction is the slave computer end, the slave computer sends a slave computer firmware data packet acquisition instruction to the PC end and receives a slave computer firmware data packet returned by the PC end;
the slave upgrades the firmware according to the slave firmware data packet;
and after the slave finishes the firmware upgrading, the slave sets the upgrading flag state to be a normal starting state and replies an upgrading ending instruction to the PC terminal.
3. The firmware upgrading method of the touch device according to claim 1, wherein after the host firmware packet obtaining instruction returned by the host is forwarded to the PC side and the host firmware packet returned by the PC side is forwarded to the host, so that the host performs upgrading according to the host firmware packet, the method further comprises:
the slave machine receives a host machine upgrading ending instruction sent by the host machine;
the slave sets the upgrading flag state to be a normal starting state and replies an upgrading ending instruction to the PC terminal.
4. The firmware upgrade method of a touch device according to claim 1, wherein the slave is connected to the PC terminal through a USB interface.
5. The firmware upgrade method of a touch device according to claim 1, wherein the slave device communicates with the host device through an SPI.
6. The firmware upgrading device of the touch equipment is characterized in that the touch equipment comprises a host end and a slave end, and the control device of the touch equipment comprises:
the communication module is used for establishing communication connection between the slave terminal and the PC terminal;
the reply module is used for responding to an upgrading starting instruction sent by the PC end from the slave end and replying version information to the PC end so that the PC end sends an upgrading enabling instruction to the slave end according to the version information;
the instruction forwarding module is used for forwarding the upgrade enabling instruction to the host by the slave and receiving a host firmware data packet acquisition instruction returned by the host when an upgrade object in the upgrade enabling instruction is the host end;
and the data packet forwarding module is used for forwarding the host firmware data packet acquisition command returned by the host to the PC end and forwarding the host firmware data packet returned by the PC end to the host so as to upgrade the host according to the host firmware data packet.
7. The firmware upgrade apparatus of a touch device according to claim 6, further comprising:
the data packet acquisition module is used for sending a slave firmware data packet acquisition instruction to the PC end by the slave machine and receiving a slave firmware data packet returned by the PC end when an upgrading object in the upgrading enabling instruction is the slave machine end;
the slave upgrading module is used for upgrading the firmware according to the slave firmware data packet by the slave;
and the first upgrading ending module is used for setting the upgrading flag state to be a normal starting state and replying an upgrading ending instruction to the PC end by the slave machine after the slave machine finishes firmware upgrading.
8. The firmware upgrading apparatus for touch device as claimed in claim 6, wherein after the host firmware packet obtaining command returned from the host is forwarded to the PC, and the host firmware packet returned from the PC is forwarded to the host, so that the host performs upgrading according to the host firmware packet, further comprising:
the system comprises an ending instruction receiving module, a host upgrading ending instruction receiving module and a host upgrading ending module, wherein the host upgrading ending instruction is sent by a host;
and the second upgrading ending module is used for setting the upgrading flag state to be a normal starting state by the slave computer and replying an upgrading ending instruction to the PC terminal.
9. The firmware upgrading apparatus of the touch device as claimed in claim 6, wherein the slave is connected to the PC terminal through a USB interface.
10. The firmware upgrade apparatus of a touch device as claimed in claim 6, wherein the slave and the host communicate with each other through the SPI.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011136981.4A CN112286561A (en) | 2020-10-22 | 2020-10-22 | Firmware upgrading method and device for touch equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011136981.4A CN112286561A (en) | 2020-10-22 | 2020-10-22 | Firmware upgrading method and device for touch equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112286561A true CN112286561A (en) | 2021-01-29 |
Family
ID=74423615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011136981.4A Pending CN112286561A (en) | 2020-10-22 | 2020-10-22 | Firmware upgrading method and device for touch equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112286561A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2812115Y (en) * | 2005-07-29 | 2006-08-30 | 杭州华为三康技术有限公司 | On-line upgrading circuit for master equipment |
| JP2007334818A (en) * | 2006-06-19 | 2007-12-27 | Sony Corp | Slave equipment, electronic equipment, software update processing method, and rewriting program |
| WO2010000142A1 (en) * | 2008-06-30 | 2010-01-07 | 华为技术有限公司 | Distributed network management system and maintenance management method thereof |
| CN107562493A (en) * | 2017-10-24 | 2018-01-09 | 厦门市福工动力技术有限公司 | Chip online upgrading method and computer-readable recording medium |
| CN109491688A (en) * | 2018-11-16 | 2019-03-19 | 珠海云洲智能科技有限公司 | The method, apparatus and system of firmware upgrade are carried out to the control equipment of unmanned boat |
| CN110515637A (en) * | 2019-07-12 | 2019-11-29 | 湖南新云网科技有限公司 | A kind of programme upgrade method, system and terminal device |
| CN110727454A (en) * | 2019-10-24 | 2020-01-24 | 北京云迹科技有限公司 | Updating method and device of intelligent equipment, electronic equipment and storage medium |
| CN110780909A (en) * | 2019-10-14 | 2020-02-11 | 武汉虹识技术有限公司 | Distributed embedded system upgrading method and device |
-
2020
- 2020-10-22 CN CN202011136981.4A patent/CN112286561A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2812115Y (en) * | 2005-07-29 | 2006-08-30 | 杭州华为三康技术有限公司 | On-line upgrading circuit for master equipment |
| JP2007334818A (en) * | 2006-06-19 | 2007-12-27 | Sony Corp | Slave equipment, electronic equipment, software update processing method, and rewriting program |
| WO2010000142A1 (en) * | 2008-06-30 | 2010-01-07 | 华为技术有限公司 | Distributed network management system and maintenance management method thereof |
| CN107562493A (en) * | 2017-10-24 | 2018-01-09 | 厦门市福工动力技术有限公司 | Chip online upgrading method and computer-readable recording medium |
| CN109491688A (en) * | 2018-11-16 | 2019-03-19 | 珠海云洲智能科技有限公司 | The method, apparatus and system of firmware upgrade are carried out to the control equipment of unmanned boat |
| CN110515637A (en) * | 2019-07-12 | 2019-11-29 | 湖南新云网科技有限公司 | A kind of programme upgrade method, system and terminal device |
| CN110780909A (en) * | 2019-10-14 | 2020-02-11 | 武汉虹识技术有限公司 | Distributed embedded system upgrading method and device |
| CN110727454A (en) * | 2019-10-24 | 2020-01-24 | 北京云迹科技有限公司 | Updating method and device of intelligent equipment, electronic equipment and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105847456B (en) | A kind of RS485 distributes address methods, devices and systems automatically | |
| US8520697B2 (en) | System and method for connecting bluetooth-enabled devices to a personal computer | |
| CN111209026B (en) | Mobile terminal, power adapter and upgrading method thereof | |
| CN108475241B (en) | SPI-based data transmission method and device | |
| CN107025203B (en) | First board card, second board card and equipment | |
| CN103812695A (en) | Software debugging method and device for SFP (small form pluggable) ONU (optical network unit) | |
| CN110880998B (en) | Message transmission method and device based on programmable device | |
| CN102273179A (en) | Method and device for terminal batch upgrading | |
| JP4432385B2 (en) | Data relay system | |
| CN109471660A (en) | Docking station device, electronic device and MAC address clone method | |
| CN103957037A (en) | Method for automatic communication between PC side and Android mobile phone side based on Bluetooth | |
| CN115357535A (en) | Virtual serial port design method and device | |
| CN104834619A (en) | I2C (Inter-Integrated Circuit) bus circuit, implementation method and electronic equipment | |
| US20130332504A1 (en) | Station, target apparatus, initiator apparatus, communication system, and communication method | |
| WO2017049549A1 (en) | Mobile terminal, power supply adapter, and upgrading method thereof | |
| CN106126465A (en) | A kind of data transmission method and device | |
| CN101383918B (en) | 1+1 television system and communication method thereof | |
| CN104836636A (en) | Method, device and system for communication based on novel CAN frame | |
| CN106339348A (en) | Data transmission method and device based on mobile terminal interface extension | |
| CN112286561A (en) | Firmware upgrading method and device for touch equipment | |
| CN202710751U (en) | Compass directing and monitoring equipment | |
| CN108027744A (en) | Data transmission method and mobile terminal | |
| CN104346310A (en) | Data exchange circuit and method of high-performance I2C slave equipment | |
| CN107885674B (en) | Bluetooth device simulator, working method thereof and Bluetooth device operating system | |
| CN203027289U (en) | System for realizing serial communication among computer, host computer and slave computer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |