CN116755727B - Intelligent upgrading method and system for firmware of embedded device - Google Patents
Intelligent upgrading method and system for firmware of embedded device Download PDFInfo
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- CN116755727B CN116755727B CN202311047571.6A CN202311047571A CN116755727B CN 116755727 B CN116755727 B CN 116755727B CN 202311047571 A CN202311047571 A CN 202311047571A CN 116755727 B CN116755727 B CN 116755727B
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 238000007711 solidification Methods 0.000 claims abstract description 30
- 230000008023 solidification Effects 0.000 claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000004891 communication Methods 0.000 claims description 57
- 230000005540 biological transmission Effects 0.000 claims description 37
- 238000003860 storage Methods 0.000 claims description 14
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Classifications
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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
- G06F8/63—Image based installation; Cloning; Build to order
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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
- G06F21/10—Protecting distributed programs or content, e.g. vending or licensing of copyrighted material ; Digital rights management [DRM]
- G06F21/12—Protecting executable software
- G06F21/121—Restricting unauthorised execution of programs
- G06F21/125—Restricting unauthorised execution of programs by manipulating the program code, e.g. source code, compiled code, interpreted code, machine code
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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
- G06F8/65—Updates
- G06F8/654—Updates using techniques specially adapted for alterable solid state memories, e.g. for EEPROM or flash memories
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/22—Microcontrol or microprogram arrangements
Abstract
The invention discloses an intelligent upgrading method and system for firmware of an embedded device, wherein a binary form preset program file is downloaded into a flash memory chip of the embedded device through a burner at an upper computer to generate curing information corresponding to the binary form preset program file, wherein the curing information comprises burning time, operator information, place information and production batch information of the embedded device corresponding to the downloading operation and explanation files corresponding to the preset program file, and the basic information of the embedded device can be clearly known through the curing information, so that a manager can conveniently carry out subsequent fault treatment according to the basic information; when the embedded equipment is overhauled later, the solidification information corresponding to the binary form preset program file in the embedded equipment can be obtained by obtaining the global unique identifier, namely, the scheme can obtain the basic information of the more perfect embedded equipment and has higher accuracy.
Description
Technical Field
The invention relates to the technical field of embedded equipment, in particular to an intelligent firmware upgrading method and system for embedded equipment.
Background
The micro control unit (Microcontroller Unit, MCU), also called as single chip microcomputer (Single Chip Microcomputer) or single chip microcomputer, is a chip level computing device formed by reducing the frequency and specification of a central processing unit (Central Process Unit; CPU), and integrating peripheral interfaces such as a memory (memory), a counter (Timer), USB, A/D conversion, UART, PLC, DMA and the like on a single chip; the embedded device is a miniature special-purpose computing device with MCU as a control unit, and is widely applied to the field of industrial control.
When the embedded device is used, the flash memory chips inside the embedded device can store preset program files to realize functions. The preset program file needs to be burnt when the embedded equipment leaves the factory; for the embedded equipment which is already burnt and leaves the factory, if the embedded equipment fails and needs to backtrack the problems or re-burn the preset program file, the basic information of the embedded equipment, such as the burning date, the operator or the burning place of the last preset program file, needs to be known; so that the manager can perform subsequent fault treatment according to the basic information. However, the existing method for acquiring the basic information of the embedded device which is burnt by the preset program file is more traditional, mainly refers to the nameplate or the printed information of the circuit board of the embedded device directly and manually, so that the acquired basic information of the embedded device is less and the accuracy is low.
Disclosure of Invention
The invention mainly aims to provide an intelligent upgrading method and system for firmware of embedded equipment, and aims to solve the problems that the existing method for acquiring the basic information of the embedded equipment which is burnt by a preset program file is relatively traditional, the acquired basic information of the embedded equipment is less, and the accuracy is low.
The technical scheme provided by the invention is as follows:
an intelligent upgrading method for embedded equipment firmware is applied to an intelligent upgrading system for the embedded equipment firmware; the system comprises an upper computer and a storage server which is in communication connection with the upper computer; the upper computer is used for being in communication connection with the burner, and the burner is used for being in communication connection with the embedded equipment; the upper computer stores a preset program file; the method comprises the following steps:
after the embedded equipment is in communication connection with the upper computer, the upper computer acquires a preset program file corresponding to the embedded equipment;
the upper computer converts the preset program file into a binary form;
the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a burner, and marks the time when the downloading is completed as the burning time;
the upper computer generates solidification information corresponding to a binary form preset program file, wherein the solidification information comprises burning time, operator information, place information, production batch information of the embedded equipment and an explanation file corresponding to the preset program file, which correspond to the downloading operation;
The upper computer generates a global unique identifier corresponding to the solidification information, and stores the global unique identifier and the corresponding solidification information in a storage server;
and the upper computer downloads the globally unique identifier to a flash memory chip of the embedded device.
Preferably, the upper computer also stores a driving program; the writers are J-Link writers or ST-Link writers, and different types of writers correspond to different driving programs; the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer, marks the time when the downloading is completed as the writing time, and comprises the following steps:
the upper computer judges whether the following conditions are met: the upper computer stores a J-Link driver, and the embedded equipment is connected with the upper computer in a communication way through a J-Link writer;
if yes, the upper computer marks the J-Link driver as a first target program;
if not, the upper computer detects whether the ST-Link driver is stored;
if the upper computer stores the ST-Link driver, the upper computer judges whether the burner connected with the embedded equipment is the ST-Link burner or not;
if the burner connected with the embedded equipment is an ST-Link burner, the upper computer marks the ST-Link driver as a first target program;
The upper computer downloads a binary form preset program file into a flash memory chip of the embedded device through a writer based on the first target program, and marks the time when the downloading is completed as the writing time.
Preferably, the downloading, by the upper computer, the globally unique identifier into a flash memory chip of the embedded device includes:
the upper computer encrypts the binary global unique identifier through a preset encryption algorithm to form an identifier ciphertext;
and the upper computer downloads the identifier ciphertext to a flash memory chip of the embedded device.
Preferably, the method further comprises:
after the embedded equipment is in communication connection with the upper computer, the upper computer acquires the identifier Fu Miwen in the flash memory chip of the embedded equipment;
the upper computer acquires an input secret key corresponding to a preset encryption algorithm;
the upper computer decrypts the identifier Fu Miwen based on the secret key and a preset encryption algorithm and judges whether decryption is successful or not;
if the decryption is successful, the upper computer displays the global unique identifier obtained after the decryption of the identifier Fu Miwen, and acquires the solidification information corresponding to the global unique identifier;
if the decryption is unsuccessful, the upper computer generates and displays the first alarm information.
Preferably, the method further comprises:
After the embedded equipment is in communication connection with the upper computer, the upper computer detects whether a configuration ciphertext is stored in a flash memory chip of the embedded equipment;
if the flash memory chip does not store the configuration ciphertext, the upper computer acquires the input configuration information corresponding to the embedded equipment and converts the configuration information into a binary form, wherein the configuration information comprises manufacturer numbers, equipment models and SN numbers;
the upper computer encrypts the binary configuration information through a preset encryption algorithm to obtain a configuration ciphertext;
and the upper computer downloads the configuration ciphertext to a flash memory chip of the embedded device.
Preferably, after the embedded device is in communication connection with the upper computer, the upper computer detects whether a configuration ciphertext is stored in a flash memory chip of the embedded device, and then the method further includes:
if the configuration ciphertext is stored in the flash memory chip, the upper computer acquires the configuration ciphertext;
the upper computer acquires an input secret key corresponding to a preset encryption algorithm;
the upper computer decrypts the configuration ciphertext based on the secret key and a preset encryption algorithm, and judges whether decryption is successful or not;
if the decryption is successful, the upper computer displays the configuration information obtained after the configuration ciphertext is decrypted;
if the decryption is unsuccessful, the upper computer generates and displays second alarm information.
Preferably, the upper computer stores a J-Link driver and an ST-Link driver at the same time; the writers are J-Link writers or ST-Link writers, and different types of writers correspond to different driving programs; the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer, marks the time when the downloading is completed as the writing time, and comprises the following steps:
the upper computer generates test information and converts the test information into a binary form;
after the embedded equipment is in communication connection with an upper computer through a J-Link writer, the upper computer marks the J-Link driver as a second target program;
the upper computer downloads the binary form test information into a flash memory chip of the embedded equipment through a burner based on a second target program, and marks the time spent in downloading as a first test time;
after the embedded equipment is in communication connection with an upper computer through an ST-Link writer, the upper computer marks an ST-Link driver as a third target program;
the upper computer downloads the binary form test information into a flash memory chip of the embedded equipment through a burner based on a third target program, and marks the time spent in downloading as second test time;
The upper computer compares the first test duration with the second test duration;
if the first test duration is smaller than the second test duration, the upper computer judges whether the embedded equipment is in communication connection with the upper computer through the J-Link writer within the first preset duration;
if yes, the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer based on a second target program, and marks the time when the downloading is completed as the writing time;
if not, the upper computer downloads the binary form preset program file into the flash memory chip of the embedded equipment through the burner based on the third target program, and marks the time when the downloading is completed as the burning time;
and if the first test duration is not less than the second test duration, the upper computer downloads the binary form preset program file into the flash memory chip of the embedded equipment through the burner based on the third target program, and marks the time when the downloading is completed as the burning time.
Preferably, the upper computer stores a J-Link driver and an ST-Link driver at the same time; the writers are J-Link writers or ST-Link writers, and different types of writers correspond to different driving programs; the solidifying information also comprises a burning duration, a preset program file size and corresponding driver information, wherein the burning duration is the duration consumed by the upper computer to download the binary preset program file into the flash memory chip of the embedded equipment through the burner; the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer, marks the time when the downloading is completed as the writing time, and comprises the following steps:
The upper computer obtains a global unique identifier in a flash memory chip of the embedded equipment so as to obtain corresponding solidification information based on the global unique identifier;
the upper computer obtains a driving program corresponding to a burner which is in communication connection with the current embedded equipment and marks the driving program as a fourth target program;
the upper computer marks a driving program corresponding to the driving program information corresponding to the burning in the curing information as a fifth target program, and judges whether the fifth target program is consistent with the fourth target program or not;
if the first transmission speed is inconsistent with the second transmission speed, the upper computer obtains the first transmission speed based on the burning duration and the preset program file size in the curing information;
the upper computer generates test information and converts the test information into a binary form;
the upper computer downloads the binary form test information into a flash memory chip of the embedded equipment through a burner based on a fourth target program, and marks the time spent in downloading as a third test time;
the upper computer obtains a second transmission speed based on the size of the test information and the third test duration, and compares the first transmission speed with the second transmission speed;
if the second transmission speed is greater than or equal to the first transmission speed, the upper computer downloads a binary preset program file into a flash memory chip of the embedded equipment through a writer based on a fourth target program, and marks the time when the downloading is completed as the writing time;
If the second transmission speed is smaller than the first transmission speed, the upper computer judges whether the embedded equipment is in communication connection with the upper computer through a burner corresponding to a fifth target program within a first preset time period from the moment;
if yes, the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer based on a fifth target program, and marks the time when the downloading is completed as the writing time;
if not, the upper computer downloads the binary form preset program file into the flash memory chip of the embedded equipment through the burner based on the fourth target program, and marks the time when the downloading is completed as the burning time.
Preferably, the upper computer converts the preset program file into a binary form, and then further includes:
the upper computer randomly intercepts a binary form preset program file to obtain a specimen file, and obtains position information of the specimen file in the binary form preset program file;
the upper computer stores the specimen file and the corresponding position information to the storage server;
the method further comprises the steps of:
after the embedded equipment is in communication connection with the upper computer, the upper computer judges whether a preset program file in a binary form exists in a flash memory chip of the embedded equipment;
If yes, the upper computer acquires a specimen file and position information corresponding to a preset file in a binary form in the flash memory chip;
the upper computer acquires a binary form preset program file in the flash memory chip, and re-intercepts the binary form preset program file based on the position information to obtain an actual file;
the upper computer judges whether the actual file is completely consistent with the specimen file;
if the information is not completely consistent, the upper computer generates third alarm information for expressing that the firmware is tampered.
The invention also provides an intelligent upgrading system for the firmware of the embedded equipment, and an intelligent upgrading method for the firmware of the embedded equipment is applied; the system comprises an upper computer and a storage server which is in communication connection with the upper computer; the upper computer is used for being in communication connection with the burner, and the burner is used for being in communication connection with the embedded equipment; the upper computer stores a preset program file.
Through the technical scheme, the following beneficial effects can be realized:
the intelligent upgrading method for the firmware of the embedded equipment can acquire more basic information of the embedded equipment, and has higher accuracy; firstly, a binary form preset program file is downloaded into a flash memory chip of an embedded device through a burner by an upper computer, and then, solidification information corresponding to the binary form preset program file is generated, wherein the solidification information comprises burning time, operator information, place information corresponding to downloading operation, production batch information of the embedded device and description files corresponding to the preset program file, and the basic information of the embedded device can be clearly known through the solidification information, so that a manager can conveniently carry out subsequent fault processing according to the basic information; then establishing a corresponding relation between the global unique identifier and the solidification information, and downloading the global unique identifier into a flash memory chip of the embedded equipment; when the embedded equipment is overhauled subsequently, the solidification information corresponding to the binary form preset program file in the embedded equipment can be obtained through obtaining the global unique identifier.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flowchart of a first embodiment of a firmware intelligent upgrade method for an embedded device according to the present invention.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
The invention provides an intelligent upgrading method and system for firmware of embedded equipment.
As shown in fig. 1, in a first embodiment of an intelligent upgrade method for firmware of an embedded device according to the present invention, the method is applied to an intelligent upgrade system for firmware of an embedded device; the system comprises an upper computer and a storage server which is in communication connection with the upper computer; the upper computer is used for being connected with a burner in a communication way, and the burner is used for being connected with embedded equipment (namely, computing equipment taking MCU as a processor) in a communication way; the upper computer stores a preset program file; the embodiment comprises the following steps:
Step S110: after the embedded equipment is in communication connection with the upper computer, the upper computer acquires a preset program file corresponding to the embedded equipment.
Specifically, the embedded device is in communication connection with the upper computer through the burner, and different preset program files (the preset program files are curing programs of the embedded device in the daily operation process) are corresponding to different embedded devices, so that the upper computer obtains the preset program files corresponding to the embedded device.
Step S120: the upper computer converts the preset program file into a binary form.
Step S130: the upper computer downloads the binary form preset program file into the flash memory chip of the embedded device through the burner, and marks the time when the downloading is completed as the burning time.
Specifically, the operation herein is to burn the preset program file into the embedded device through the burner.
Step S140: the upper computer generates the solidification information corresponding to the binary form preset program file, wherein the solidification information comprises the burning time corresponding to the downloading operation, the operator information (namely the information of the personnel performing the burning operation), the place information (the place position for performing the burning), the production batch information of the embedded equipment and the description file corresponding to the preset program file.
Step S150: the upper computer generates a globally unique identifier (i.e., GUID number) corresponding to the curing information, and stores the globally unique identifier and the corresponding curing information in the storage server.
Specifically, after the corresponding relation between the global unique identifier and the solidification information is established, the global unique identifier and the solidification information are stored in a storage server.
Step S160: and the upper computer downloads the globally unique identifier to a flash memory chip of the embedded device.
Specifically, the globally unique identifier is downloaded to the flash memory chip of the embedded device, so that the solidification information can be obtained based on the globally unique identifier.
The intelligent upgrading method for the firmware of the embedded equipment can acquire more basic information of the embedded equipment, and has higher accuracy; firstly, a binary form preset program file is downloaded into a flash memory chip of an embedded device through a burner at an upper computer, and then, solidification information corresponding to the binary form preset program file is generated, wherein the solidification information comprises burning time, operator information, place information corresponding to downloading operation, production batch information of the embedded device and description files corresponding to the preset program file (the solidification information is the basic information of the embedded device), and the basic information of the embedded device can be clearly known through the solidification information, so that a manager can conveniently carry out subsequent fault treatment according to the basic information; then establishing a corresponding relation between the global unique identifier and the solidification information, wherein the global unique identifier ensures uniqueness, and then downloading the global unique identifier into a flash memory chip of the embedded equipment so as to ensure traceability; when the embedded equipment is overhauled subsequently, the solidification information corresponding to the binary form preset program file in the embedded equipment can be obtained through obtaining the global unique identifier.
In a second embodiment of the intelligent upgrade method for firmware of an embedded device provided by the invention, based on the first embodiment, a driver is also stored in an upper computer; the writers are J-Link writers or ST-Link writers, and different types of writers correspond to different driving programs; step S130, including the steps of:
step S210: the upper computer judges whether the following conditions are met: the upper computer stores a J-Link driver, and the embedded equipment is connected with the upper computer in a communication way through a J-Link burner.
If yes, step S220 is executed: the upper computer marks the J-Link driver as a first target program.
Specifically, if the upper computer stores a J-Link driver, and the embedded device is in communication connection with the upper computer through the J-Link writer, the J-Link driver is directly marked as a first target program, so that the J-Link driver is directly adopted for writing a preset program file in the following process.
If not, go to step S230: the upper computer detects whether an ST-Link driver is stored.
Step S240: if the upper computer stores the ST-Link driver, the upper computer judges whether the burner connected with the embedded equipment is the ST-Link burner or not.
Step S250: if the burner connected with the embedded equipment is an ST-Link burner, the upper computer marks the ST-Link driver as a first target program.
Specifically, if the upper computer stores the ST-Link driver and the burner connected to the embedded device is the ST-Link burner, the upper computer marks the ST-Link driver as the first target program.
Step S260: the upper computer downloads a binary form preset program file into a flash memory chip of the embedded device through a writer based on the first target program, and marks the time when the downloading is completed as the writing time.
For an on-line operator, there may be a problem in that the type of burner cannot be recognized and the corresponding burner driver is correctly installed due to limited expertise, thereby failing to correctly download the preset program file. In this way, the method and the device can automatically identify the model of the burner connected with the embedded equipment, automatically select the corresponding driver based on the driver stored by the upper computer, and not need to manually identify the model of the burner and select the corresponding driver, thereby being more efficient and intelligent.
In a third embodiment of the intelligent upgrade method for firmware of an embedded device according to the present invention, based on the first embodiment, step S160 includes the following steps:
step S310: and the upper computer encrypts the binary global unique identifier through a preset encryption algorithm to form an identifier ciphertext.
In particular, the preset encryption algorithm is preferably an RSA encryption algorithm, by which encrypted contents can be restored only if the decryption key is known.
Step S320: and the upper computer downloads the identifier ciphertext to a flash memory chip of the embedded device.
The global unique identifier can be protected through a preset encryption algorithm, and related information of the embedded equipment is prevented from being leaked.
In a fourth embodiment of the intelligent upgrade method for firmware of an embedded device according to the present invention, based on the third embodiment, the present embodiment further includes the following steps:
step S410: after the embedded device is in communication connection with the upper computer, the upper computer acquires the identifier ciphertext in the flash memory chip of the embedded device.
Step S420: the upper computer acquires an input secret key corresponding to a preset encryption algorithm.
Specifically, the upper computer obtains the key input by the operator.
Step S430: the upper computer decrypts the identifier Fu Miwen based on the secret key and a preset encryption algorithm, and judges whether decryption is successful or not.
Specifically, the identifier Fu Miwen can only be successfully decrypted if the key is correct.
Step S440: if the decryption is successful, the upper computer displays the globally unique identifier obtained by decrypting the identifier Fu Miwen, and acquires the solidification information corresponding to the globally unique identifier.
Step S450: if the decryption is unsuccessful, the upper computer generates and displays the first alarm information.
By setting the decryption step, the security is higher because only operators who know the secret key can view the globally unique identifier.
In a fifth embodiment of the intelligent upgrade method for firmware of an embedded device according to the present invention, based on the first embodiment, the embodiment further includes the following steps:
step S510: after the embedded device is in communication connection with the upper computer, the upper computer detects whether a configuration ciphertext is stored in a flash memory chip of the embedded device.
Specifically, the configuration ciphertext is a ciphertext obtained after subsequent encryption of the configuration information, and the configuration information is set only when the preset program file is written into the embedded device for the first time, so if the embedded device is in communication connection with the upper computer, the upper computer detects that the configuration ciphertext is stored in the flash memory chip of the embedded device, which indicates that the embedded device does not write the preset program file for the first time.
Step S520: if the configuration ciphertext is not stored in the flash memory chip, the upper computer acquires input configuration information corresponding to the embedded device and converts the configuration information into a binary form, wherein the configuration information comprises manufacturer numbers, device models and SN numbers.
Specifically, the manufacturer number is a number determined by the manufacturer of the embedded device, the device model is a model number SN (Serial Number) of the embedded device determined by the manufacturer, namely a product serial number, and each embedded device is correspondingly provided with a unique SN number; the configuration information can reflect basic information (equivalent to identity information of the embedded device) of the embedded device, so that an operator can conveniently identify the embedded device, and the operator can be helped to select a preset program file corresponding to the embedded device.
Step S530: and the upper computer encrypts the binary configuration information through a preset encryption algorithm to obtain a configuration ciphertext.
Step S540: and the upper computer downloads the configuration ciphertext to a flash memory chip of the embedded device.
Specifically, when writing a preset program file into the embedded device for the first time, a manager sets configuration information and encrypts the configuration information to prevent the configuration information from being leaked, so that the security is better.
In a sixth embodiment of the intelligent upgrade method for firmware of an embedded device according to the present invention, based on the fifth embodiment, step S510 further includes the following steps:
Step S610: if the configuration ciphertext is stored in the flash memory chip, the upper computer acquires the configuration ciphertext.
Step S620: the upper computer acquires an input secret key corresponding to a preset encryption algorithm.
Step S630: and the upper computer decrypts the configuration ciphertext based on the secret key and a preset encryption algorithm and judges whether decryption is successful.
Step S640: and if the decryption is successful, the upper computer displays the configuration information obtained after the configuration ciphertext is decrypted.
Step S650: if the decryption is unsuccessful, the upper computer generates and displays second alarm information.
The purpose of this embodiment is to encrypt and save the configuration information, so that only operators who know the secret key can view the configuration information of the embedded device, and the security is higher.
In a seventh embodiment of the intelligent upgrade method for firmware of an embedded device provided by the invention, based on the first embodiment, an upper computer stores a J-Link driver and an ST-Link driver simultaneously; the writers are J-Link writers or ST-Link writers, and different types of writers correspond to different driving programs; step S130, including the steps of:
step S701: and the upper computer generates test information and converts the test information into a binary form.
Step S702: and after the embedded equipment is in communication connection with the upper computer through the J-Link writer, the upper computer marks the J-Link driver as a second target program.
Step S703: the upper computer downloads the binary form test information into the flash memory chip of the embedded device through the burner based on the second target program, and marks the time spent in downloading as the first test time.
Specifically, the first test duration is the duration taken to download the test information to the embedded device through the J-Link driver and the J-Link writer.
Step S704: and after the embedded equipment is in communication connection with the upper computer through the ST-Link writer, the upper computer marks the ST-Link driver as a third target program.
Step S705: the upper computer downloads the binary form test information into the flash memory chip of the embedded device through the burner based on the third target program, and marks the time spent in downloading as the second test time.
Specifically, the second test duration is the duration taken to download the test information to the embedded device through the ST-Link driver and the ST-Link writer.
Step S706: the upper computer compares the first test duration with the second test duration.
Step S707: if the first test duration is smaller than the second test duration, the upper computer judges whether the embedded equipment is in communication connection with the upper computer through the J-Link writer within a first preset duration (30 s for example) at the moment.
If yes, go to step S708: and the upper computer downloads the binary form preset program file into a flash memory chip of the embedded equipment through a writer based on the second target program, and marks the time when the downloading is completed as the writing time.
If not, go to step S709: and the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer based on a third target program, and marks the time when the downloading is completed as the writing time.
Specifically, if the first test duration is shorter than the second test duration, it is indicated that for the embedded device, the downloading of the preset program file through the J-Link driver and the J-Link writer is faster, so that the downloading by the J-Link writer is preferably recommended.
However, because the embedded device is in communication connection with the ST-Link writer at this time, an operator is given a first preset time period to replace the writer, after the first preset time period, the upper computer again detects whether the embedded device is in communication connection with the upper computer through the J-Link writer (namely, whether the writer is replaced or not), and if so, the preset program file is downloaded directly through the J-Link driver and the J-Link writer. If not, the operator is not required to replace the burner, and the preset program file is directly downloaded through the ST-Link driver and the ST-Link burner.
Step S710: and if the first test duration is not less than the second test duration, the upper computer downloads the binary form preset program file into the flash memory chip of the embedded equipment through the burner based on the third target program, and marks the time when the downloading is completed as the burning time.
Specifically, if the first test duration is not less than the second test duration, it is indicated that for the embedded device, the downloading of the preset program file by the ST-Link driver and the ST-Link writer is faster, so that the downloading of the preset program file is directly performed by the ST-Link driver and the ST-Link writer.
In an eighth embodiment of the intelligent upgrade method for firmware of an embedded device, based on the first embodiment, an upper computer stores a J-Link driver and an ST-Link driver at the same time; the writers are J-Link writers or ST-Link writers, and different types of writers correspond to different driving programs; the curing information further comprises a burning duration, a preset program file size and corresponding driver information (the driver information can reflect the type of a driver, namely whether the driver is a J-Link driver or an ST-Link driver), wherein the burning duration is the duration consumed by an upper computer for downloading a binary preset program file into a flash memory chip of the embedded device through a burner; step S130, including the steps of:
Step S801: the upper computer obtains a global unique identifier in a flash memory chip of the embedded device to obtain corresponding curing information based on the global unique identifier.
Specifically, the embodiment is directed to an embedded device that has previously performed writing of a preset program file, and after the embedded device establishes a communication connection with an upper computer through a burner, the upper computer obtains a global unique identifier in a flash memory chip of the embedded device, so as to obtain corresponding curing information based on the global unique identifier (where the curing information is operation information corresponding to the embedded device when performing a preset program file writing operation last time).
Step S802: the upper computer obtains a driving program corresponding to a burner which is in communication connection with the current embedded equipment, and marks the driving program as a fourth target program.
Specifically, for example, the driver corresponding to the burner connected to the current embedded device is a J-LInk driver (fourth driver), and the burner connected to the current embedded device is a J-LInk burner.
Step S803: the upper computer marks the driving program corresponding to the driving program information corresponding to the burning in the curing information as a fifth target program, and judges whether the fifth target program is consistent with the fourth target program.
Specifically, the fifth object program is a driver used when the embedded device writes the preset program file last time.
Step S804: if the first transmission speed is inconsistent, the upper computer obtains the first transmission speed based on the burning duration and the preset program file size in the curing information (the first transmission speed is equal to the preset program file size divided by the burning duration).
Specifically, for example, the fifth object is an ST-Link driver, and is inconsistent. The first transmission speed is the writing speed when the embedded device performs the writing of the preset program file last time (adopting the ST-Link driver).
Step S805: and the upper computer generates test information and converts the test information into a binary form.
Step S806: the upper computer downloads the binary form test information into the flash memory chip of the embedded device through the burner based on the fourth target program, and marks the time spent in downloading as the third test time.
Step S807: the upper computer obtains a second transmission speed based on the size of the test information and the third test duration, and compares the first transmission speed with the second transmission speed.
Specifically, the second transmission speed is equal to the size of the test information divided by the third test duration, where the second transmission speed is the speed of the embedded device for performing test writing this time (using the J-Link driver).
Step S808: if the second transmission speed is greater than or equal to the first transmission speed, the upper computer downloads the binary preset program file into the flash memory chip of the embedded device through the burner based on the fourth target program, and marks the time when the downloading is completed as the burning time.
Specifically, if the second transmission speed is greater than or equal to the first transmission speed, it means that the current connected burner can be used to perform writing of the preset program file faster, so that the preset program file in the binary form is directly downloaded to the flash memory chip of the embedded device through the burner based on the fourth target program.
Step S809: if the second transmission speed is smaller than the first transmission speed, the upper computer judges whether the embedded equipment is in communication connection with the upper computer through a burner corresponding to the fifth target program within a first preset time period (for example, 30 s) from the moment.
If yes, step S810 is executed: and the upper computer downloads the binary form preset program file into a flash memory chip of the embedded equipment through a writer based on the fifth target program, and marks the time when the downloading is completed as the writing time.
If not, go to step S811: and the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer based on a fourth target program, and marks the time when the downloading is completed as the writing time.
Specifically, if the second transmission speed is smaller than the first transmission speed, it means that the downloading of the preset program file by the fifth target program is faster for the present embedded device, so that downloading by the burner corresponding to the fifth target program is preferably recommended.
However, because the burner corresponding to the fourth target program is in communication connection with the embedded device at this time, the operator is given a first preset time period to replace the burner, after the first preset time period, the upper computer again detects whether the embedded device establishes communication connection with the upper computer through the burner corresponding to the fifth target program (i.e. whether the burner is replaced), and if so, the downloading of the preset program file is directly performed through the fifth target program and the corresponding burner. If not, the operator is not required to replace the burner, and the fourth driver and the corresponding burner are directly used for downloading the preset program file.
In a ninth embodiment of the intelligent upgrade method for firmware of an embedded device according to the present invention, based on the first embodiment, step S120 further includes the following steps:
step S910: the upper computer randomly intercepts a binary preset program file to obtain a specimen file, and obtains the position information of the specimen file in the binary preset program file.
Specifically, the location information here includes a start location and an end location of interception, and based on the location information and a preset program file, a specimen file can be intercepted.
Step S920: and the upper computer stores the specimen file and the corresponding position information into the storage server.
The embodiment further comprises the following steps:
step S930: after the embedded device is in communication connection with the upper computer, the upper computer judges whether a preset program file in a binary form exists in a flash memory chip of the embedded device.
Specifically, if the preset program file exists, it is indicated that the embedded device does not write the preset program file for the first time, that is, the preset program file has been written before.
If yes, go to step S940: the upper computer acquires a specimen file and position information corresponding to a binary preset file in the flash memory chip.
Step S950: the upper computer acquires a binary form preset program file in the flash memory chip, and re-intercepts the binary form preset program file based on the position information to obtain an actual file.
Specifically, the actual file is obtained based on the location information and the preset program file currently stored in the embedded device.
Step S960: the upper computer judges whether the actual file is completely consistent with the specimen file.
Step S970: if the information is not completely consistent, the upper computer generates third alarm information for expressing that the firmware is tampered.
Specifically, the embodiment can detect whether the preset program file in the embedded device is tampered, so as to help operators to troubleshoot the embedded device.
In a tenth embodiment of the intelligent upgrade method for firmware of an embedded device according to the present invention, based on the fourth embodiment, step S450 further includes the following steps:
step S1010: the upper computer reads the data in the flash memory chip of the embedded device to judge whether the user data exists in the flash memory chip of the embedded device.
Step S1020: if the user data exists, the upper computer deletes the user data.
Specifically, if decryption is wrong, the security risk is shown, and in order to ensure that the user data is not leaked, the upper computer deletes the user data.
The invention also provides an intelligent upgrading system for the firmware of the embedded equipment, and the intelligent upgrading method for the firmware of the embedded equipment is applied to the intelligent upgrading system; the system comprises an upper computer and a storage server which is in communication connection with the upper computer; the upper computer is used for being in communication connection with the burner, and the burner is used for being in communication connection with the embedded equipment; the upper computer stores a preset program file.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.
Claims (8)
1. The intelligent upgrading method for the firmware of the embedded equipment is characterized by being applied to an intelligent upgrading system for the firmware of the embedded equipment; the system comprises an upper computer and a storage server which is in communication connection with the upper computer; the upper computer is used for being in communication connection with the burner, and the burner is used for being in communication connection with the embedded equipment; the upper computer stores a preset program file; the method comprises the following steps:
after the embedded equipment is in communication connection with the upper computer, the upper computer acquires a preset program file corresponding to the embedded equipment;
the upper computer converts the preset program file into a binary form;
the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a burner, and marks the time when the downloading is completed as the burning time;
the upper computer generates solidification information corresponding to a binary form preset program file, wherein the solidification information comprises burning time, operator information, place information, production batch information of the embedded equipment and an explanation file corresponding to the preset program file, which correspond to the downloading operation;
the upper computer generates a global unique identifier corresponding to the solidification information, and stores the global unique identifier and the corresponding solidification information in a storage server;
The upper computer downloads the global unique identifier to a flash memory chip of the embedded equipment;
further comprises:
after the embedded equipment is in communication connection with the upper computer, the upper computer detects whether a configuration ciphertext is stored in a flash memory chip of the embedded equipment;
if the flash memory chip does not store the configuration ciphertext, the upper computer acquires the input configuration information corresponding to the embedded equipment and converts the configuration information into a binary form, wherein the configuration information comprises manufacturer numbers, equipment models and SN numbers;
the upper computer encrypts the binary configuration information through a preset encryption algorithm to obtain a configuration ciphertext;
the upper computer downloads the configuration ciphertext to a flash memory chip of the embedded equipment;
the upper computer stores a J-Link driver and an ST-Link driver simultaneously; the writers are J-Link writers or ST-Link writers, and different types of writers correspond to different driving programs; the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer, marks the time when the downloading is completed as the writing time, and comprises the following steps:
the upper computer generates test information and converts the test information into a binary form;
After the embedded equipment is in communication connection with an upper computer through a J-Link writer, the upper computer marks the J-Link driver as a second target program;
the upper computer downloads the binary form test information into a flash memory chip of the embedded equipment through a burner based on a second target program, and marks the time spent in downloading as a first test time;
after the embedded equipment is in communication connection with an upper computer through an ST-Link writer, the upper computer marks an ST-Link driver as a third target program;
the upper computer downloads the binary form test information into a flash memory chip of the embedded equipment through a burner based on a third target program, and marks the time spent in downloading as second test time;
the upper computer compares the first test duration with the second test duration;
if the first test duration is smaller than the second test duration, the upper computer judges whether the embedded equipment is in communication connection with the upper computer through the J-Link writer within the first preset duration;
if yes, the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer based on a second target program, and marks the time when the downloading is completed as the writing time;
If not, the upper computer downloads the binary form preset program file into the flash memory chip of the embedded equipment through the burner based on the third target program, and marks the time when the downloading is completed as the burning time;
and if the first test duration is not less than the second test duration, the upper computer downloads the binary form preset program file into the flash memory chip of the embedded equipment through the burner based on the third target program, and marks the time when the downloading is completed as the burning time.
2. The intelligent upgrade method of firmware of embedded equipment according to claim 1, wherein the upper computer further stores a driver; the writers are J-Link writers or ST-Link writers, and different types of writers correspond to different driving programs; the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer, marks the time when the downloading is completed as the writing time, and comprises the following steps:
the upper computer judges whether the following conditions are met: the upper computer stores a J-Link driver, and the embedded equipment is connected with the upper computer in a communication way through a J-Link writer;
if yes, the upper computer marks the J-Link driver as a first target program;
If not, the upper computer detects whether the ST-Link driver is stored;
if the upper computer stores the ST-Link driver, the upper computer judges whether the burner connected with the embedded equipment is the ST-Link burner or not;
if the burner connected with the embedded equipment is an ST-Link burner, the upper computer marks the ST-Link driver as a first target program;
the upper computer downloads a binary form preset program file into a flash memory chip of the embedded device through a writer based on the first target program, and marks the time when the downloading is completed as the writing time.
3. The intelligent upgrade method of firmware of an embedded device according to claim 1, wherein the host computer downloads a globally unique identifier to a flash memory chip of the embedded device, comprising:
the upper computer encrypts the binary global unique identifier through a preset encryption algorithm to form an identifier ciphertext;
and the upper computer downloads the identifier ciphertext to a flash memory chip of the embedded device.
4. The intelligent upgrade method of firmware of an embedded device according to claim 3, further comprising:
after the embedded equipment is in communication connection with the upper computer, the upper computer acquires the identifier Fu Miwen in the flash memory chip of the embedded equipment;
The upper computer acquires an input secret key corresponding to a preset encryption algorithm;
the upper computer decrypts the identifier Fu Miwen based on the secret key and a preset encryption algorithm and judges whether decryption is successful or not;
if the decryption is successful, the upper computer displays the global unique identifier obtained after the decryption of the identifier Fu Miwen, and acquires the solidification information corresponding to the global unique identifier;
if the decryption is unsuccessful, the upper computer generates and displays the first alarm information.
5. The intelligent upgrade method of firmware of an embedded device according to claim 1, wherein after the embedded device is communicatively connected to the host computer, the host computer detects whether a configuration ciphertext is stored in a flash memory chip of the embedded device, and further comprises:
if the configuration ciphertext is stored in the flash memory chip, the upper computer acquires the configuration ciphertext;
the upper computer acquires an input secret key corresponding to a preset encryption algorithm;
the upper computer decrypts the configuration ciphertext based on the secret key and a preset encryption algorithm, and judges whether decryption is successful or not;
if the decryption is successful, the upper computer displays the configuration information obtained after the configuration ciphertext is decrypted;
if the decryption is unsuccessful, the upper computer generates and displays second alarm information.
6. The intelligent upgrade method of firmware of embedded equipment according to claim 1, wherein the upper computer stores a J-Link driver and an ST-Link driver simultaneously; the writers are J-Link writers or ST-Link writers, and different types of writers correspond to different driving programs; the solidifying information also comprises a burning duration, a preset program file size and corresponding driver information, wherein the burning duration is the duration consumed by the upper computer to download the binary preset program file into the flash memory chip of the embedded equipment through the burner; the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer, marks the time when the downloading is completed as the writing time, and comprises the following steps:
the upper computer obtains a global unique identifier in a flash memory chip of the embedded equipment so as to obtain corresponding solidification information based on the global unique identifier;
the upper computer obtains a driving program corresponding to a burner which is in communication connection with the current embedded equipment and marks the driving program as a fourth target program;
the upper computer marks a driving program corresponding to the driving program information corresponding to the burning in the curing information as a fifth target program, and judges whether the fifth target program is consistent with the fourth target program or not;
If the first transmission speed is inconsistent with the second transmission speed, the upper computer obtains the first transmission speed based on the burning duration and the preset program file size in the curing information;
the upper computer generates test information and converts the test information into a binary form;
the upper computer downloads the binary form test information into a flash memory chip of the embedded equipment through a burner based on a fourth target program, and marks the time spent in downloading as a third test time;
the upper computer obtains a second transmission speed based on the size of the test information and the third test duration, and compares the first transmission speed with the second transmission speed;
if the second transmission speed is greater than or equal to the first transmission speed, the upper computer downloads a binary preset program file into a flash memory chip of the embedded equipment through a writer based on a fourth target program, and marks the time when the downloading is completed as the writing time;
if the second transmission speed is smaller than the first transmission speed, the upper computer judges whether the embedded equipment is in communication connection with the upper computer through a burner corresponding to a fifth target program within a first preset time period from the moment;
if yes, the upper computer downloads a binary form preset program file into a flash memory chip of the embedded equipment through a writer based on a fifth target program, and marks the time when the downloading is completed as the writing time;
If not, the upper computer downloads the binary form preset program file into the flash memory chip of the embedded equipment through the burner based on the fourth target program, and marks the time when the downloading is completed as the burning time.
7. The intelligent upgrade method of firmware of an embedded device according to claim 1, wherein the upper computer converts a preset program file into a binary form, and further comprises:
the upper computer randomly intercepts a binary form preset program file to obtain a specimen file, and obtains position information of the specimen file in the binary form preset program file;
the upper computer stores the specimen file and the corresponding position information to the storage server;
the method further comprises the steps of:
after the embedded equipment is in communication connection with the upper computer, the upper computer judges whether a preset program file in a binary form exists in a flash memory chip of the embedded equipment;
if yes, the upper computer acquires a specimen file and position information corresponding to a preset file in a binary form in the flash memory chip;
the upper computer acquires a binary form preset program file in the flash memory chip, and re-intercepts the binary form preset program file based on the position information to obtain an actual file;
The upper computer judges whether the actual file is completely consistent with the specimen file;
if the information is not completely consistent, the upper computer generates third alarm information for expressing that the firmware is tampered.
8. An intelligent upgrade system for firmware of an embedded device, wherein an intelligent upgrade method for firmware of an embedded device according to any one of claims 1 to 7 is applied; the system comprises an upper computer and a storage server which is in communication connection with the upper computer; the upper computer is used for being in communication connection with the burner, and the burner is used for being in communication connection with the embedded equipment; the upper computer stores a preset program file.
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