CN113934439B - Multichannel automatic identification burning system and method - Google Patents
Multichannel automatic identification burning system and method Download PDFInfo
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- CN113934439B CN113934439B CN202111357226.3A CN202111357226A CN113934439B CN 113934439 B CN113934439 B CN 113934439B CN 202111357226 A CN202111357226 A CN 202111357226A CN 113934439 B CN113934439 B CN 113934439B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
- G06F21/71—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information
- G06F21/73—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer to assure secure computing or processing of information by creating or determining hardware identification, e.g. serial numbers
Abstract
The invention belongs to the field of embedded systems, and relates to a multichannel automatic identification burning system and a multichannel automatic identification burning method; the system comprises an upper computer loaded with upper computer software, a USB hub and a USB-to-serial port module; the USB hub is used for connecting the USB serial port conversion module to the upper computer, and the USB serial port conversion module is connected with a product to be burned; a read-only memory is embedded in the USB-to-serial port module to store information of each channel; the upper computer software automatically traverses all USB devices connected to the upper computer, performs content matching according to the descriptors of the USB devices and the information stored in the read-only memory, and acquires the port number of the corresponding channel if the matching is successful; and interacting with the product to be burned through a serial port protocol in a multithreading parallel control mode until the Bluetooth MAC address and serial number information of the product are burned after the file is downloaded and checked. According to the invention, the multichannel parallel burning is configured through the upper computer software, so that the burning efficiency on the production line is improved.
Description
Technical Field
The invention relates to the field of embedded systems, in particular to a production line IC device burning method and system, and specifically relates to a multichannel automatic identification burning system and method.
Background
The IC chip (Integrated Circuit Chip) is a chip formed by placing an integrated circuit formed by a large number of microelectronic devices (transistors, resistors, capacitors, etc.) on a plastic substrate. Generally, the IC chip also needs to write its latest version of control program and data using an IC burner before the assembly is completed.
At present, the downloading of the firmware of the electronic product on the production line generally comprises two modes of off-line burning and on-line burning; the off-line burning mode is generally to connect with different packaged chips through an adapter, and the different packaged chips need to be matched with different adapters. If errors occur in the production test process, the production backtracking and the correction are needed, the chip is required to be detached from the adapter and burned again according to the specified flow, so that the consumption of large manpower and material resources is high, the cost is high, meanwhile, the off-line burning mode is not participated by a PC upper computer, the automatic recording of the downloaded information and the report generation cannot be completed through the PC upper computer, the downloaded content is required to be stored on special storage equipment, and the multi-channel expansion is difficult to realize. In the on-line programming mode, a standard communication bus of a chip is generally used, an interface of the standard communication bus is fixed, and the number of pins connected during programming is small, so that programming can be performed through wire connection. If errors are found in the production test, the burning is performed again, and the chip is not required to be disassembled. The on-line burning mode not only saves the production cost, but also increases the burning efficiency. And the multi-channel parallel online burning can be supported by a serial port mode, so that the multi-channel expansion is realized, and the online burning equipment has the advantages of small volume, easiness in expansion and the like.
However, the online burning device needs to select a corresponding port number for each channel before use, and the port number needs to be reset once being changed, so that the online burning device is extremely inconvenient to operate, the risk of wrong port setting is increased, and the production efficiency is extremely unfavorable to improvement.
Disclosure of Invention
Based on the problems existing in the prior art, the invention provides a multichannel automatic identification burning system and a multichannel automatic identification burning method, which can effectively solve the problem of channel correspondence by writing channel information into USB (universal serial bus) to serial port equipment of each channel, do not need special setting, and can not be influenced by port and environmental change.
In a first aspect of the present invention, the present invention provides a multichannel automatic identification recording system, the system includes an upper computer carrying upper computer software, a USB hub, and a USB-to-serial module; the USB hub comprises a multi-channel USB interface, and provides the USB interface for the USB serial port module to access the upper computer, and the USB serial port module is connected with a product to be burned through a serial port of the USB serial port module; a read-only memory is embedded in the USB-to-serial port module, and the read-only memory stores information of each channel; the upper computer software automatically traverses all USB devices connected to the upper computer, matches the content stored by the read-only memory of the USB-to-serial port module according to the descriptor of the USB device, and acquires the port number of the corresponding channel if the matching is successful; and based on the obtained port numbers of the channels in a multithreading parallel control mode, interacting with the product to be burnt through a serial port protocol, and transmitting file information to the product to be burnt until the downloading of the file is completed and the verification is carried out, and then burning the Bluetooth MAC address of the product and the serial number information of the product.
Further, the read-only memory is a charged erasable programmable read-only memory.
In a second aspect of the present invention, the present invention further provides a multi-channel automatic identification burning method, where the method includes:
after powering up a multichannel automatic identification burning system, initializing the system;
after the upper computer software driver identifies the USB-to-serial port module, identifying the information of the corresponding channel;
the upper computer software automatically traverses descriptors of all devices, and when the traversed descriptors are matched with information of all channels stored in a read-only memory in a USB (universal serial bus) serial port module, port numbers of corresponding channels are obtained;
based on the obtained port numbers of all channels, interacting with the product to be burned through a serial port protocol in a multithread parallel control mode;
transmitting the file information to the product to be burnt until the file downloading is completed and the verification is carried out, and burning the Bluetooth MAC address of the product and the serial number information of the product.
The invention has the beneficial effects that:
the invention solves the problem of multi-channel support, and can conveniently configure the multi-channel to perform parallel burning through the upper computer software, thereby effectively improving the burning efficiency on the production line.
The invention adds the EEPROM with the electrical erasable programmable memory into the USB-to-serial port module, writes the port number sequence of the specific mark, automatically detects the matching by the upper computer software, effectively solves the problem of channel correspondence, and simplifies the operation flow of the production line.
The invention generates the Bluetooth MAC address and the product serial number information according to the set rules, writes the information into each channel device in the use process at the same time, and stores the information into the database in real time, thereby being capable of being used for information recording and statistics and facilitating information inquiry.
Drawings
FIG. 1 is a schematic diagram of a multi-channel auto-identification burning system according to an embodiment of the present invention;
fig. 2 is a flowchart of a multi-channel auto-identification burning method according to an embodiment of the invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic diagram of a multi-channel automatic identification burning system according to an embodiment of the present invention, as shown in fig. 1, a multi-channel automatic identification burning system includes an upper computer carrying upper computer software, a USB hub, and a USB-to-serial module; the USB hub comprises a multi-channel USB interface, and provides a USB interface for the USB to serial port module to access the upper computer, and the USB to serial port module is connected with a product to be burned through the serial port.
In the embodiment of the invention, a read-only memory is embedded in the USB-to-serial port module, and the read-only memory stores information of each channel; the upper computer software automatically traverses all USB devices connected to the upper computer, performs content matching according to descriptors of the USB devices and information stored in a read-only memory of a USB-to-serial port module, and acquires port numbers of corresponding channels if the matching is successful; and based on the obtained port numbers of the channels in a multithreading parallel control mode, interacting with the product to be burnt through a serial port protocol, and transmitting file information to the product to be burnt until the downloading of the file is completed and the verification is carried out, and then burning the Bluetooth MAC address of the product and the serial number information of the product.
In the embodiment of the invention, the upper computer software is a main control part of the multichannel automatic identification burning system, and the functions of the upper computer software mainly comprise burning file selection, bluetooth MAC and SN strategy setting and generation, driving identification and port matching of a USB-to-serial port module, multichannel burning flow control and burning information database storage.
In the embodiment of the invention, the USB HUB may use a conventional device that extends one USB interface into a plurality of USB interfaces and enables the interfaces to be used simultaneously, for example, a USB2.0 HUB, a USB3.0 HUB, a USB3.1 HUB, and so on. The USB hub is mainly used for providing a multi-channel USB interface and connecting the USB to the serial port into the upper computer.
The traditional USB-to-serial port realizes the conversion from the computer USB interface to the universal serial port. The method provides a quick channel for the computer without a serial port, and the use of the USB to serial port device is equal to the change of the traditional serial port device into a plug and play USB device. As one of the most widely used USB interfaces, each computer has one of the necessary communication interfaces, and the most important characteristic is to support hot plug and play. USB to serial port module. The module can be regarded as a converter of USB protocol, convert USB interface of the computer into a transparent parallel bus, just like the bus of the single-chip microcomputer, the traditional mode that supports multichannel parallel burning generally adopts the serial port, this kind of apparatus is small, easy to expand. However, before the burning device is used, a corresponding port number needs to be selected for each channel, and the port number change needs to be reset, so that the burning device is inconvenient to use and is easy to cause a corresponding error problem.
In an improved embodiment of the present invention, the USB-to-serial port module is connected to the host computer through the USB hub, and is connected to the product to be burned through the serial port RS 232. In the invention, an electrified erasable programmable read-only memory (Electrically Erasable Programmable read only memory, EEPROM for short) is added in the USB-to-serial port module, and information of each serial port channel is set, so that the channel matching of an upper computer is facilitated.
In some preferred embodiments, the USB-to-serial module may employ an FT232 chip, and add EEPROM according to its characteristics, and write information of each channel.
In a preferred embodiment of the present invention, the system further comprises a display for displaying the progress of burning and the information of burning.
The display can be a display of an upper computer or a display externally connected independently, and the display can be connected with the upper computer and controlled by upper computer software to display; the burning progress is mainly used for displaying the burning progress of the product to be burnt, and any number in 0% -100% can be displayed; the recording information can comprise Bluetooth MAC address recorded by each channel, serial number information of products, recording time, recording result and the like.
In a preferred embodiment of the present invention, the system further includes a buzzer, where the buzzer is used for alarming during the burning process, and when the bluetooth MAC and SN generate values exceeding the maximum set values, the buzzer alarms to prompt an error.
In a preferred embodiment of the present invention, the system further includes a database, where the database records and stores the recording information, where the database may be mounted on an upper computer or on a third party server, and the database has functions of adding, deleting, searching, storing, etc., and may store information such as a bluetooth MAC value, an SN value, a recording time, a recording result, etc. recorded in each channel.
Fig. 2 is a flowchart of a multi-channel automatic identification burning method according to an embodiment of the present invention, as shown in fig. 2, where the method includes:
101. after powering up a multichannel automatic identification burning system, initializing the system;
in the embodiment of the invention, the multichannel automatic identification burning system is powered on, and after the multichannel automatic identification burning system is powered on, the system is initialized, whether a burning file exists or not is detected, whether the maximum value and the minimum value set by Bluetooth MAC and SN are reasonable or not is detected, and USB equipment connected to an upper computer is detected.
102. After the upper computer software driver identifies the USB-to-serial port module, identifying the information of the corresponding channel;
in the embodiment of the invention, the upper computer software traverses the equipment connected with the upper computer, acquires the descriptor of the USB equipment, firstly distinguishes the USB-to-serial port equipment, then matches the equipment information stored in the read-only memory, and identifies whether the USB-to-serial port module is connected to the USB hub or not and whether the USB-to-serial port module is connected with a product to be burned or not.
103. The upper computer software automatically traverses descriptors of all devices, and when the traversed descriptors are matched with information of all channels stored in a read-only memory in a USB (universal serial bus) serial port module, port numbers of corresponding channels are obtained;
in the embodiment of the invention, the upper computer software can be matched with the read information of each channel in the EEPROM according to the descriptors of all the devices, and after the matching is successful, the port number of the corresponding channel can be determined. The information stored in the EEPROM comprises a descriptor and a channel number, and the descriptor can be set as information specific to a company, so that the equipment can conveniently search, and the conflict with other equipment is avoided. The channel number is set according to the number of USB HUB channels, and the proposal suggests that the channel number is 16, so the channel numbers are 1-16. After the information in the EEPROM is determined, the upper computer software confirms the physical position of each channel, detects the USB-to-serial device through the information when the device is started, acquires the corresponding port number, opens the USB-to-serial device through the port number, and then interacts with the product to be burned to finish firmware burning and writing of Bluetooth MAC addresses and serial numbers.
It can be understood that the upper computer software can automatically match each physical channel in an automatic scanning mode, and based on the physical channel, the upper computer is connected with corresponding products, so that the production line efficiency is improved, and the environment batch deployment is facilitated.
In the conventional matching method, after determining the descriptors of all devices obtained from the upper computer software and the read descriptors in the EEPROM, a match can be searched between them. One method is to match all the descriptors of the devices obtained in the upper computer software with each input descriptor in the EEPROM completely, select the descriptors of the nearest distance, assume that there are M total descriptors of all the devices obtained in the upper computer software, and N descriptors in the EEPROM, and compare any one of the M descriptors in the upper computer software with N descriptors in the EEPROM. Each comparison gives a distance value, and then the obtained distances are ranked, and the closest one is taken as the matching point. If the channels corresponding to the N descriptors are to be determined, at least m×n matching operations and a large number of sorting operations are required, and if the number of descriptors stored in the upper computer software is large, the burning efficiency and accuracy are affected.
Based on the analysis, it can be found that there are a large number of incorrect matches and useless matches in the above matching process, so some mechanisms need to be set to reduce the redundant matching process to filter out the incorrect matches and useless matches. 104. Based on the obtained port numbers of all channels, interacting with the product to be burned through a serial port protocol in a multithread parallel control mode;
in the embodiment of the invention, taking 16-channel multithreading as an example, through parallel control of 16 threads, interaction is performed with a product to be burned through a serial port protocol according to file information and port numbers of all channels, so that the interaction connection between an upper computer and the product is completed, and the subsequent information burning is facilitated.
For example, assume that 16 products to be burned are connected to 16 USB-to-serial modules, and the 16 USB-to-serial modules are connected to respective USB channels of the 16 USB-to-serial modules;
105. transmitting the file information to the product to be burnt until the file downloading is completed and the verification is carried out, and burning the Bluetooth MAC address of the product and the serial number information of the product.
In the embodiment of the invention, the file information is a download information table generated according to the selected download file; the file information comprises a file size, a download address and a check code.
The Bluetooth MAC address of the product and the serial number information of the product are generated according to a set strategy, the MAC address format is 6 bytes of 16-system data, a starting value range and a maximum value range are set, and the generation modes are two, and the generation modes are randomly generated or added according to the set self-increment. The serial number format is 4 bytes 10 digits, the initial value and the maximum value range are set, and the generation modes are two, and the serial number is randomly generated or accumulated according to the set self-increment. When in actual use, the Bluetooth MAC address and the product serial number are respectively generated according to the historical values and the setting strategy, the historical values are updated by the newly generated values, and the alarm is judged if the set range is exceeded.
In the preferred embodiment of the invention, after the file is burnt, the invention also stores the information such as the Bluetooth MAC value, the SN value, the burning time, the burning result and the like of each channel through a database.
In the description of the present invention, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "outer," "front," "center," "two ends," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "rotated," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The multichannel automatic identification burning system is characterized by comprising an upper computer loaded with upper computer software, a USB hub and a USB-to-serial port module; the USB hub comprises a multi-channel USB interface, and provides the USB interface for the USB serial port module to access the upper computer, and the USB serial port module is connected with a product to be burned through a serial port of the USB serial port module; a read-only memory is embedded in the USB-to-serial port module, and the read-only memory stores information of each channel; the upper computer software automatically traverses all USB devices connected to the upper computer, performs content matching according to descriptors of the USB devices and information stored in a read-only memory of a USB-to-serial port module, and acquires port numbers of corresponding channels if the matching is successful; and based on the obtained port numbers of the channels in a multithreading parallel control mode, interacting with the product to be burnt through a serial port protocol, and transmitting file information to the product to be burnt until the downloading of the file is completed and the verification is carried out, and then burning the Bluetooth MAC address of the product and the serial number information of the product.
2. The multi-channel auto-id burning system of claim 1, wherein the rom is a charged eeprom.
3. The multi-channel automatic identification burning system of claim 1, further comprising a display for displaying the burning progress and burning information.
4. The multi-channel automatic identification burning system according to claim 1, further comprising a buzzer for alerting of the burning process.
5. The multi-channel automatic identification burning system of claim 1 further comprising a database that records and stores burning information.
6. A multi-channel automatic identification burning method, the method comprising:
initializing the system after powering on the multi-channel automatic identification burning system according to any one of claims 1-5;
after the upper computer software driver identifies the USB-to-serial port module, identifying the information of the corresponding channel;
the upper computer software automatically traverses descriptors of all devices, and when the traversed descriptors are matched with information of all channels stored in a read-only memory in a USB (universal serial bus) serial port module, port numbers of corresponding channels are obtained;
based on the obtained port numbers of all channels, interacting with the product to be burned through a serial port protocol in a multithread parallel control mode;
transmitting the file information to the product to be burnt until the file downloading is completed and the verification is carried out, and burning the Bluetooth MAC address of the product and the serial number information of the product.
7. The method of claim 6, wherein the file information is to automatically select all the recording files for each channel according to a recording packet path, or select corresponding recording files for each channel according to a port number of each channel.
8. The multi-channel automatic identification burning method according to claim 6 or 7, wherein the file information is a download information table generated according to the selected download file; the file information comprises a file size, a download address and a check code.
9. The system of claim 6, wherein the process of generating the bluetooth MAC address includes setting a first threshold range including a start value and a maximum value for the bluetooth MAC address, generating the bluetooth MAC address in a random manner or a self-increment accumulation manner, if the generated bluetooth MAC address exceeds the first threshold range, alarming that the generated bluetooth MAC address is wrong, and generating a new bluetooth MAC address again in a random manner or a self-increment accumulation manner.
10. The multi-channel automatic identification recording system according to claim 6, wherein the generating process of the serial number information of the product comprises setting a second threshold range including a start value and a maximum value for the serial number information, generating the serial number information in a random manner or a self-increment accumulation manner, and if the generated serial number information exceeds the second threshold range, alarming that the generated serial number information is wrong, and generating new serial number information in a random manner or a self-increment accumulation manner again.
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| CN114499700B (en) * | 2022-01-25 | 2023-06-02 | 上海市共进通信技术有限公司 | Method, device, processor and storage medium for realizing Bluetooth module production test and verification by AP intelligent terminal through serial port communication |
| CN116909592B (en) * | 2023-09-13 | 2024-03-22 | 宁德时代新能源科技股份有限公司 | Parallel burning system and method |
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| CN113934439A (en) | 2022-01-14 |
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