CN113535201A - Firmware loading and upgrading mechanism for improving success rate of firmware upgrading - Google Patents
Firmware loading and upgrading mechanism for improving success rate of firmware upgrading Download PDFInfo
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- CN113535201A CN113535201A CN202110682684.8A CN202110682684A CN113535201A CN 113535201 A CN113535201 A CN 113535201A CN 202110682684 A CN202110682684 A CN 202110682684A CN 113535201 A CN113535201 A CN 113535201A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 20
- 230000008569 process Effects 0.000 claims abstract description 17
- 238000012795 verification Methods 0.000 claims abstract description 6
- 238000007689 inspection Methods 0.000 claims description 4
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/1433—Saving, restoring, recovering or retrying at system level during software upgrading
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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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Abstract
The invention provides a firmware loading and upgrading mechanism for improving the success rate of firmware upgrading, and relates to the technical field of hardware upgrading. The firmware loading and upgrading mechanism for improving the success rate of firmware upgrading comprises an application program remote upgrading error proofing mechanism and process, and a BOOTLOADER loading application program error proofing mechanism and processing process, wherein the application program remote upgrading error proofing mechanism and process comprise AT command check, upgrading packet check, MD5 check and writing upgrading marks. The firmware upgrading mechanism of the invention is mainly applied to the upgrading of the application program of an embedded product and the loading of the application program of BOOTOLADER, in order to prevent the crash of the product caused by the error upgrading of the hardware version of different products, when the application program is compiled, the code number of the hardware chip version (different chip code numbers are configured for different chips) and the software version (different software version segments are distributed for different products) are written into a certain position of a program code, and MD5 verification is added at the tail of the program when the upgrading program is manufactured, so as to prevent the error of the verification of the package after the upgrading and the receiving are completed.
Description
Technical Field
The invention relates to the technical field of hardware upgrading, in particular to a firmware loading and upgrading mechanism for improving the success rate of firmware upgrading.
Background
Firmware is a program written in EPROM (erasable programmable read only memory) or EEPROM (electrically erasable programmable read only memory). The firmware refers to a device "driver" stored in the device, and through the firmware, the operating system can implement the operation of a specific machine according to the standard device driver, for example, the optical disc drive and the recorder have internal firmware. Firmware is software that acts as the most basic and bottom layer of a system. In a hardware device, the firmware is the soul of the hardware device, and because some hardware devices have no other software components except for the firmware, the firmware determines the functions and performances of the hardware device.
In the prior art, when firmware is upgraded, hardware versions of different products are upgraded mistakenly, so that the products are halted, and data loss is caused to cause large loss.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a firmware loading and upgrading mechanism for improving the success rate of firmware upgrading, and solves the problem that the products are halted due to the wrong upgrading of hardware versions of different products.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a firmware loading and upgrading mechanism for improving the success rate of firmware upgrading comprises an application program remote upgrading error proofing mechanism and process, and a BOOTLOADER loading application program error proofing mechanism and process, wherein the application program remote upgrading error proofing mechanism and process comprises AT command check, upgrading packet check, MD5 check, writing upgrading mark, file size, file CRC16 and upgrading head CRC16, and the BOOTLOADER loading application program error proofing mechanism and process comprises product power-on or reset, upgrading mark reading and on-chip LASH application program and on-chip FLASH comparison consistency verification.
Preferably, the remote upgrading and error proofing mechanism and the process of the application program comprise the following steps:
step one, AT command check is carried out when the upgrade is started, whether the first frame is upgraded or not is selected when the upgraded AT command is received, and the AT command check is continuously executed if the upgraded AT command is received;
step two, whether the first frame is upgraded or not is selected
a. When the first frame of the upgrade is not selected, checking an upgrade package, if the upgrade package has no problem, requesting a next-level upgrade package, if the upgrade package has the problem, checking the MD5, if the upgrade package has the problem, requesting the current upgrade package and executing the upgrade package from the first step again, and if the MD5 checks the upgrade package has the problem, terminating the upgrade and executing the upgrade package from the first step again;
b. when the first frame is selected to be upgraded, checking whether the chip version is matched with the software version, if so, storing upgrading parameters, requesting a next-stage upgrading package, and if not, executing the first step again;
and step three, performing MD5 check after receiving the next-level upgrade package, writing an upgrade flag, a file size, a file CRC16 and an upgrade header CRC16 and performing reset hardware processing if the check is passed, executing the step one again if the check is not passed, and executing the step one again if the next-level upgrade package is not received.
Preferably, the upgrade package check includes checking of package size, block number, current package CRC and full package MD5, and the saved upgrade parameters include file size, upgrade type, upgrade package size and MD5 check data.
Preferably, the BOOTLOADER loading application program error-proofing mechanism and the processing flow steps are as follows:
step one, electrifying or resetting the product, and reading an upgrading mark
a. Skipping to the application program when the upgrading mark is invalid;
b. the upgrading mark is valid, whether CRC16 of the FLAS outside the chip is qualified is checked, if not, the application program is skipped to, if the application program is qualified, the application program is stored in the FLASH outside the chip to the FLASH inside the chip, and whether the application program of the FLASH outside the chip is consistent with the FLASH inside the chip is detected;
and step three, if the application program of the FLASH outside the chip is consistent with the FLASH inside the chip, skipping to a program, and if not, resetting the product and executing the step one again.
(III) advantageous effects
The invention provides a firmware loading and upgrading mechanism for improving the success rate of firmware upgrading. The method has the following beneficial effects:
the firmware upgrading mechanism is mainly applied to upgrading of an embedded product application program and loading of the BOOTOLADER application program, in order to prevent the product from crashing caused by wrong upgrading of hardware versions of different products, when the application program is compiled, a hardware chip version code (different chips are configured with different chip codes) and a software version (different products are distributed with different software version segments) are written into a certain position of a program code, MD5 verification is added at the tail of the program when the upgrading program is manufactured, and the package verification error after the upgrading is received is prevented.
Drawings
Fig. 1 is a flow chart of a firmware loading and upgrading mechanism for improving the success rate of firmware upgrading according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1, an embodiment of the present invention provides a firmware loading and firmware upgrading mechanism for increasing a success rate of firmware upgrading, which includes an application remote upgrade error protection mechanism and process, and a bootload application error protection mechanism and process, where the application remote upgrade error protection mechanism and process include AT command check, upgrade package check, MD5 check, write upgrade flag, file size, file CRC16, and upgrade header CRC16, and the bootload application error protection mechanism and process includes product power-on or reset, reading upgrade flag, and verifying whether an on-chip LASH application is consistent with an off-chip FLASH.
The application program remote upgrading error proofing mechanism and the process steps are as follows:
step one, AT command check is carried out when the upgrade is started, whether the first frame is upgraded or not is selected when the upgraded AT command is received, and the AT command check is continuously executed if the upgraded AT command is received;
step two, whether the first frame is upgraded or not is selected
a. When the first frame of the upgrade is not selected, checking an upgrade package, if the upgrade package has no problem, requesting a next-level upgrade package, if the upgrade package has the problem, checking the MD5, if the upgrade package has the problem, requesting the current upgrade package and executing the upgrade package from the first step again, and if the MD5 checks the upgrade package has the problem, terminating the upgrade and executing the upgrade package from the first step again;
b. when the first frame is selected to be upgraded, checking whether the chip version is matched with the software version, if so, storing upgrading parameters, requesting a next-stage upgrading package, and if not, executing the first step again;
and step three, performing MD5 check after receiving the next-level upgrade package, writing an upgrade flag, a file size, a file CRC16 and an upgrade header CRC16 and performing reset hardware processing if the check is passed, executing the step one again if the check is not passed, and executing the step one again if the next-level upgrade package is not received.
Upgrade package inspection includes inspection of package size, block number, current package CRC and full package MD5, and saved upgrade parameters include file size, upgrade type, upgrade package size and MD5 check data.
The BOOTLOADER loading application program error-proofing mechanism and the processing flow comprise the following steps:
step one, electrifying or resetting the product, and reading an upgrading mark
a. Skipping to the application program when the upgrading mark is invalid;
b. the upgrading mark is valid, whether CRC16 of the FLAS outside the chip is qualified is checked, if not, the application program is skipped to, if the application program is qualified, the application program is stored in the FLASH outside the chip to the FLASH inside the chip, and whether the application program of the FLASH outside the chip is consistent with the FLASH inside the chip is detected;
and step three, if the application program of the FLASH outside the chip is consistent with the FLASH inside the chip, skipping to a program, and if not, resetting the product and executing the step one again.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A firmware loading and upgrading mechanism for improving success rate of firmware upgrading is characterized in that: the method comprises an application program remote upgrading and error proofing mechanism and process, and a BOOTLOADER loading application program error proofing mechanism and process, wherein the application program remote upgrading and error proofing mechanism and process comprises AT command check, upgrade package check, MD5 check, writing upgrade flag, file size, file CRC16 and upgrade header CRC16, and the BOOTLOADER loading application program error proofing mechanism and process comprises product power-on or reset, upgrade flag reading and verification of consistency between an on-chip LASH application program and an off-chip FLASH.
2. The mechanism of claim 1 for improving success rate of firmware upgrade, comprising: the remote upgrading and error proofing mechanism and the process of the application program comprise the following steps:
step one, AT command check is carried out when the upgrade is started, whether the first frame is upgraded or not is selected when the upgraded AT command is received, and the AT command check is continuously executed if the upgraded AT command is received;
step two, whether the first frame is upgraded or not is selected
a. When the first frame of the upgrade is not selected, checking an upgrade package, if the upgrade package has no problem, requesting a next-level upgrade package, if the upgrade package has the problem, checking the MD5, if the upgrade package has the problem, requesting the current upgrade package and executing the upgrade package from the first step again, and if the MD5 checks the upgrade package has the problem, terminating the upgrade and executing the upgrade package from the first step again;
b. when the first frame is selected to be upgraded, checking whether the chip version is matched with the software version, if so, storing upgrading parameters, requesting a next-stage upgrading package, and if not, executing the first step again;
and step three, performing MD5 check after receiving the next-level upgrade package, writing an upgrade flag, a file size, a file CRC16 and an upgrade header CRC16 and performing reset hardware processing if the check is passed, executing the step one again if the check is not passed, and executing the step one again if the next-level upgrade package is not received.
3. The mechanism of claim 2 for improving success rate of firmware upgrade, comprising: upgrade package inspection includes inspection of package size, block number, current package CRC and full package MD5, and saved upgrade parameters include file size, upgrade type, upgrade package size and MD5 check data.
4. The mechanism of claim 1 for improving success rate of firmware upgrade, comprising: the BOOTLOADER loading application program error-proofing mechanism and the processing flow comprise the following steps:
step one, electrifying or resetting the product, and reading an upgrading mark
a. Skipping to the application program when the upgrading mark is invalid;
b. the upgrading mark is valid, whether CRC16 of the FLAS outside the chip is qualified is checked, if not, the application program is skipped to, if the application program is qualified, the application program is stored in the FLASH outside the chip to the FLASH inside the chip, and whether the application program of the FLASH outside the chip is consistent with the FLASH inside the chip is detected;
and step three, if the application program of the FLASH outside the chip is consistent with the FLASH inside the chip, skipping to a program, and if not, resetting the product and executing the step one again.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110682684.8A CN113535201A (en) | 2021-06-20 | 2021-06-20 | Firmware loading and upgrading mechanism for improving success rate of firmware upgrading |
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| CN202110682684.8A CN113535201A (en) | 2021-06-20 | 2021-06-20 | Firmware loading and upgrading mechanism for improving success rate of firmware upgrading |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090119657A1 (en) * | 2007-10-24 | 2009-05-07 | Link Ii Charles M | Methods and systems for software upgrades |
| CN110389778A (en) * | 2019-07-19 | 2019-10-29 | 苏州浪潮智能科技有限公司 | A kind of isomery accelerates the MCU firmware upgrade method and relevant apparatus of platform |
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2021
- 2021-06-20 CN CN202110682684.8A patent/CN113535201A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090119657A1 (en) * | 2007-10-24 | 2009-05-07 | Link Ii Charles M | Methods and systems for software upgrades |
| CN110389778A (en) * | 2019-07-19 | 2019-10-29 | 苏州浪潮智能科技有限公司 | A kind of isomery accelerates the MCU firmware upgrade method and relevant apparatus of platform |
Non-Patent Citations (2)
| Title |
|---|
| FILIPPO COSTA等: "The ALICE C-RORC GBT card, a prototype readout solution for the ALICE upgrade", 《2016 IEEE-NPSS REAL TIME CONFERENCE (RT)》, 15 August 2016 (2016-08-15), pages 1 - 5 * |
| 谭凡: "智能网联汽车FOTA系统安全机制的研究与实现", 《CNKI优秀硕士学位论文全文库 工程科技Ⅱ辑》, no. 07, 15 July 2020 (2020-07-15), pages 035 - 299 * |
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