CN106909352A - A kind of firmware upgrade method of embedded device - Google Patents
A kind of firmware upgrade method of embedded device Download PDFInfo
- Publication number
- CN106909352A CN106909352A CN201510969415.4A CN201510969415A CN106909352A CN 106909352 A CN106909352 A CN 106909352A CN 201510969415 A CN201510969415 A CN 201510969415A CN 106909352 A CN106909352 A CN 106909352A
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- Prior art keywords
- embedded device
- data
- control unit
- write
- 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
- G06F8/656—Updates while running
-
- 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
Abstract
The present invention relates to a kind of firmware upgrade method of embedded device, including：Operation bootstrap loader；The Flash read-write initialization of embedded device；Under upgrade mode, the application area of the control unit of embedded device is wiped, by the valid data in upgrade file, by the application area of the control unit of its sequence of addresses write-in embedded device；Compare reading whether consistent with write-in data, if there is exception, retransmit upgrading data, after data write-in to be upgraded is finished, terminate escalation process；In the normal operating mode, the start address of the control unit of embedded device is jumped to, the application program of the control unit of embedded device is run.
Description
Technical field
The present invention relates to the area of maintenance of embedded device, more particularly to a kind of firmware upgrade method of embedded device.
Background technology
Firmware (Firmware) refers to write-in EROM (EROM) or EEPROM (electrically erasables
Programmable read only memory) in program.Firmware is to serve as that system is most basic, bottom work software.
And in hardware device, firmware is exactly the soul of hardware device, because some hardware devices do not have in addition to firmware
Other softwares are constituted, therefore firmware also just decides the function and performance of hardware device.
In the maintenance process of the embedded device of such as Anesthesia machine, in order to cost-effective, hardware, knot are being changed without
On the premise of structure, carry out firmware upgrade to meet demand is widespread practice.For the demand of new software function, use
Family is more willing to pay a small amount of firmware upgrade expense, rather than the whole very worthy machine of replacing.So, also
Mean Anesthesia machine firmware must possess quickly, the method easily upgraded.The method of common firmware upgrade is
The circuit board or technical staff's carrying instrument that replacing has new firmware go to scene to be updated.More than it is required for machine
Dismounted, it is cumbersome and easily installation question etc. occur, it is ageing also poor.
The content of the invention
It is an object of the invention to overcome existing embedded device firmware upgrade method to need to change the electricity for having new firmware
Road plate or technical staff carry the defect that instrument goes to scene to be updated, so as to provide a kind of ageing good, simple
Convenient firmware upgrade method.
To achieve these goals, the invention provides a kind of firmware upgrade method of embedded device, including：
Step 1), embedded device power-up start after, run bootstrap loader；
Step 2), the Flash of embedded device read-write initialization, the API library of Flash is copied from Flash regions
To SRAM areas；
Step 3), read active flag, and then judge be enter upgrade mode or normal operation mode, if rise
Level pattern performs step 4), if normal operation mode, then perform step 11)；
Step 4), wait graphic user interface send upgrade command, after bootstrap loader receives upgrade command,
Replied to graphic user interface and confirm upgrading；
Step 5), erasing embedded device control unit application area, if wiping successfully, to graphical user
Interface reports and successfully instructs, and then performs next step, if erasing failure, reports upgrading to fail to graphic user interface
Instruction, then re-executes step 4)；
Step 6), when graphic user interface receive wipe successfully instruction after, start to read and parse upgrade file, so
Encapsulated according to communications protocol after each row of data in upgrade file is extracted afterwards, upgrading data packet is generated, then to embedding
Enter the control unit transmission of formula equipment；
Step 7), the control unit of embedded device receive upgrading data packet, extract valid data therein, press
The application area of the control unit of its sequence of addresses write-in embedded device；
Step 8), write after, then the data of write-in are read from memory block, compare reading and write-in data whether one
Cause, if the control unit of embedded device receives upgrading data time-out or write-in data exception, to graphical user
Interface application retransmits the packet of the upgrading data frame, if write-in data are normal, judges whether upgrading data transfer
Finish, if end of transmission, perform step 10), otherwise continue to the next packet of graphical user interface application；
Step 9), after graphic user interface receives the upgrading data application bag of the control unit of embedded device, after
The continuous corresponding data frame of encapsulation, and transmit to the control unit of embedded device, then re-execute step 7)；When
The upgrading data application bag time-out of the control unit of the embedded device that graphic user interface is received, then resend
The unreceived upgrading data frame of control unit of embedded device；
Step 10), whole data transfer finish, show that the control unit of embedded device is normally written and finish, rewrite
Active flag, terminates escalation process, re-executes step 1)；
Step 11), jump to embedded device control unit start address, run embedded device control list
The application program of unit.
In above-mentioned technical proposal, the upgrade file is the upgrade file of HEX forms, the data parsing of HEX forms
Many aspects that must be from including including row initial character, data length, data type, verification are checked.
The advantage of the invention is that：
The mode such as the usable external connection of storage card (USB flash disk, SD card etc.) of the present invention or long-range connection sets to BDU and lower end
It is standby to be upgraded, it is not necessary to carry flashburn tools, it is not required that dismounted, it is time saving and energy saving.
Brief description of the drawings
Fig. 1 is a schematic diagram for the program storage area of Anesthesia machine；
Fig. 2 is the flow chart of firmware upgrade method of the invention.
Specific embodiment
In conjunction with accompanying drawing, the invention will be further described.
The running of embedded device is generally：From after program storage area startup, operation storage is in program storage area
Code data.When the firmware to embedded device is upgraded automatically, it is necessary in replacing program storage area one
Partial data.
In an embodiment of the present invention, by taking Anesthesia machine as an example, the upgrade method to Anesthesia machine firmware is illustrated.
Fig. 1 is a schematic diagram for the program storage area of Anesthesia machine.It will be apparent from this figure that program storage area
Address 0x003D8000 is the start address of bootstrap loader (Bootloader), the part after the address
Memory space stores the code of Bootloader.The loading of anesthesia machines system starts task by BootLoader
To complete, in the present invention, the online upgrading of Anesthesia machine software is also completed by BootLoader.Program storage area
Address 0x003E4000 is the storage address of active flag, and the active flag should be located for identifying current Anesthesia machine
In upgrade mode or normal operation mode.The address 0x003E8000 of program storage area is BDU (Breath
Delivery Unit, control of breathing unit) application program start address.
With reference to Fig. 2, firmware upgrade method of the invention includes：
Step 1), Anesthesia machine power-up start after, run Bootloader.
Step 2), Flash read-write initialization, copy the API library of Flash to SRAM areas from Flash regions.
Step 3), read active flag, and then judge it is that (active flag is 0xFFFF in fig. 2 into upgrade mode
Represent upgrade mode) or normal operation mode (active flag is for 0x0001 represents normal operation mode in fig. 2),
If upgrade mode performs step 4), if normal operation mode, then perform step 11).
Step 4), wait GUI (Graphic User Interface, graphic user interface) send upgrade command, when
After Bootloader receives upgrade command, replied to GUI and confirm upgrading.
Step 5), erasing BDU (Breath Delivery Unit, control of breathing unit) application area, if wipe
Except success, reported to GUI and successfully instructed, then perform next step, if erasing failure, report upgrading to lose to GUI
Instruction is lost, step 4 is then re-executed).
Step 6), when GUI receive wipe successfully instruction after, start to read and parse the upgrade file of HEX forms,
The data parsing of HEX forms must be examined from various aspects such as row initial character, data length, data type, verifications
Look into.Then encapsulated according to communications protocol after each row of data in upgrade file is extracted, generate upgrading data packet, so
Backward BDU transmission.
Step 7), BDU receive upgrading data packet, extract valid data therein, write by its sequence of addresses
BDU application areas.
Step 8), write after, then the data of write-in are read from memory block, compare reading and write-in data whether one
Cause.If BDU receives upgrading data time-out or write-in data exception, the upgrading data are retransmitted to GUI applications
The packet of frame, if write-in data are normal, the data that judge to upgrade whether end of transmission, if end of transmission, perform step
It is rapid 10), otherwise continue to apply for next packet to GUI.
Step 9), after GUI receives the upgrading data application bag of BDU, continue to encapsulate corresponding data frame, and
Transmit to BDU, then re-execute step 7)；When the upgrading data application bag time-out of the BDU that GUI is received,
Then resend the unreceived upgrading data frames of BDU.
Step 10), whole data transfer finish, show that BDU is normally written and finish, rewrite active flag (will open
Dynamic mark is rewritten as 0x0001 by 0xFFFF), terminate escalation process, re-execute step 1).
Step 11), jump to BDU start address, run BDU application programs.
After possessing the function of firmware upgrade in Anesthesia machine, it is possible to achieve complete firmware upgrade without tearing machine open；Work as anesthesia
Equipment can also complete remote upgrade, remote diagnosis, maintenance etc. for remote communicating function.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted.Although
The present invention has been described in detail with reference to embodiment, it will be understood by those within the art that, to the present invention
Technical scheme modify or equivalent, without departure from the spirit and scope of technical solution of the present invention, its is equal
Should cover in the middle of scope of the presently claimed invention.
Claims (2)
1. a kind of firmware upgrade method of embedded device, including：
Step 1), embedded device power-up start after, run bootstrap loader；
Step 2), the Flash of embedded device read-write initialization, the API library of Flash is copied from Flash regions
To SRAM areas；
Step 3), read active flag, and then judge be enter upgrade mode or normal operation mode, if rise
Level pattern performs step 4), if normal operation mode, then perform step 11)；
Step 4), wait graphic user interface send upgrade command, after bootstrap loader receives upgrade command,
Replied to graphic user interface and confirm upgrading；
Step 5), erasing embedded device control unit application area, if wiping successfully, to graphical user
Interface reports and successfully instructs, and then performs next step, if erasing failure, reports upgrading to fail to graphic user interface
Instruction, then re-executes step 4)；
Step 6), when graphic user interface receive wipe successfully instruction after, start to read and parse upgrade file, so
Encapsulated according to communications protocol after each row of data in upgrade file is extracted afterwards, upgrading data packet is generated, then to embedding
Enter the control unit transmission of formula equipment；
Step 7), the control unit of embedded device receive upgrading data packet, extract valid data therein, press
The application area of the control unit of its sequence of addresses write-in embedded device；
Step 8), write after, then the data of write-in are read from memory block, compare reading and write-in data whether one
Cause, if the control unit of embedded device receives upgrading data time-out or write-in data exception, to graphical user
Interface application retransmits the packet of the upgrading data frame, if write-in data are normal, judges whether upgrading data transfer
Finish, if end of transmission, perform step 10), otherwise continue to the next packet of graphical user interface application；
Step 9), after graphic user interface receives the upgrading data application bag of the control unit of embedded device, after
The continuous corresponding data frame of encapsulation, and transmit to the control unit of embedded device, then re-execute step 7)；When
The upgrading data application bag time-out of the control unit of the embedded device that graphic user interface is received, then resend
The unreceived upgrading data frame of control unit of embedded device；
Step 10), whole data transfer finish, show that the control unit of embedded device is normally written and finish, rewrite
Active flag, terminates escalation process, re-executes step 1)；
Step 11), jump to embedded device control unit start address, run embedded device control list
The application program of unit.
2. the firmware upgrade method of embedded device according to claim 1, it is characterised in that the upgrading
File for HEX forms upgrade file, HEX forms data parsing must from including row initial character, data length,
Data type, verification are checked in interior many aspects.
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| CN201510969415.4A CN106909352A (en) | 2015-12-22 | 2015-12-22 | A kind of firmware upgrade method of embedded device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108255508A (en) * | 2018-01-18 | 2018-07-06 | 晶晨半导体(上海)股份有限公司 | A kind of method for upgrading system and embedded device |
| CN108415717A (en) * | 2018-03-22 | 2018-08-17 | 南京尤尼泰信息科技有限公司 | A kind of ZYNQSOC firmware upgrade methods and update device |
| CN108762774A (en) * | 2018-05-22 | 2018-11-06 | 深圳市先河系统技术有限公司 | A kind of method of firmware burning and the equipment of firmware burning |
| CN108804118A (en) * | 2018-04-25 | 2018-11-13 | 顺丰科技有限公司 | Firmware upgrade method, equipment and storage medium |
| CN109522035A (en) * | 2018-09-29 | 2019-03-26 | 珠海格力电器股份有限公司 | A kind of programme upgrade method, device, commissioning device and electrical equipment |
| WO2020062887A1 (en) * | 2018-09-26 | 2020-04-02 | 深圳市慧嘉智科技有限公司 | Firmware upgrading method and system based on flash micro-controller, and flash micro-controller |
| CN111367539A (en) * | 2018-12-25 | 2020-07-03 | 北京兆易创新科技股份有限公司 | eMMC online upgrading method and device |
| CN111367540A (en) * | 2018-12-25 | 2020-07-03 | 北京兆易创新科技股份有限公司 | eMMC firmware upgrading method and device |
| CN111538515A (en) * | 2020-04-17 | 2020-08-14 | 杭州海兴电力科技股份有限公司 | Method, device and equipment for upgrading electric energy meter program |
| CN111580842A (en) * | 2020-04-16 | 2020-08-25 | 北京遥感设备研究所 | On-line upgrading method and system for vehicle-mounted millimeter wave radar application program |
| CN112947977A (en) * | 2021-01-26 | 2021-06-11 | 上海船舶运输科学研究所 | Software online upgrading method and system |
| CN113238789A (en) * | 2021-05-27 | 2021-08-10 | 闻泰通讯股份有限公司 | Electronic equipment, firmware upgrading method and device thereof and computer readable storage medium |
| CN116541042A (en) * | 2023-05-25 | 2023-08-04 | 深圳市航顺芯片技术研发有限公司 | Firmware upgrading method, control chip and intelligent household appliance |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108255508A (en) * | 2018-01-18 | 2018-07-06 | 晶晨半导体(上海)股份有限公司 | A kind of method for upgrading system and embedded device |
| CN108415717A (en) * | 2018-03-22 | 2018-08-17 | 南京尤尼泰信息科技有限公司 | A kind of ZYNQSOC firmware upgrade methods and update device |
| CN108415717B (en) * | 2018-03-22 | 2021-03-23 | 南京尤尼泰信息科技有限公司 | ZYNQ SOC firmware upgrading method and upgrading device |
| CN108804118A (en) * | 2018-04-25 | 2018-11-13 | 顺丰科技有限公司 | Firmware upgrade method, equipment and storage medium |
| CN108762774A (en) * | 2018-05-22 | 2018-11-06 | 深圳市先河系统技术有限公司 | A kind of method of firmware burning and the equipment of firmware burning |
| WO2020062887A1 (en) * | 2018-09-26 | 2020-04-02 | 深圳市慧嘉智科技有限公司 | Firmware upgrading method and system based on flash micro-controller, and flash micro-controller |
| CN109522035A (en) * | 2018-09-29 | 2019-03-26 | 珠海格力电器股份有限公司 | A kind of programme upgrade method, device, commissioning device and electrical equipment |
| CN111367540B (en) * | 2018-12-25 | 2023-08-29 | 兆易创新科技集团股份有限公司 | eMMC firmware upgrading method and device |
| CN111367539A (en) * | 2018-12-25 | 2020-07-03 | 北京兆易创新科技股份有限公司 | eMMC online upgrading method and device |
| CN111367540A (en) * | 2018-12-25 | 2020-07-03 | 北京兆易创新科技股份有限公司 | eMMC firmware upgrading method and device |
| CN111580842A (en) * | 2020-04-16 | 2020-08-25 | 北京遥感设备研究所 | On-line upgrading method and system for vehicle-mounted millimeter wave radar application program |
| CN111538515A (en) * | 2020-04-17 | 2020-08-14 | 杭州海兴电力科技股份有限公司 | Method, device and equipment for upgrading electric energy meter program |
| CN112947977A (en) * | 2021-01-26 | 2021-06-11 | 上海船舶运输科学研究所 | Software online upgrading method and system |
| CN112947977B (en) * | 2021-01-26 | 2023-12-19 | 上海船舶运输科学研究所 | Online software upgrading method and system |
| CN113238789A (en) * | 2021-05-27 | 2021-08-10 | 闻泰通讯股份有限公司 | Electronic equipment, firmware upgrading method and device thereof and computer readable storage medium |
| CN116541042A (en) * | 2023-05-25 | 2023-08-04 | 深圳市航顺芯片技术研发有限公司 | Firmware upgrading method, control chip and intelligent household appliance |
| CN116541042B (en) * | 2023-05-25 | 2024-01-16 | 深圳市航顺芯片技术研发有限公司 | Firmware upgrading method, control chip and intelligent household appliance |
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Application publication date: 20170630 |