CN102955710A - Method for upgrading vehicle-mounted terminal firmware based on GPRS (General Packet Radio Service) channel - Google Patents
Method for upgrading vehicle-mounted terminal firmware based on GPRS (General Packet Radio Service) channel Download PDFInfo
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- CN102955710A CN102955710A CN2012104812907A CN201210481290A CN102955710A CN 102955710 A CN102955710 A CN 102955710A CN 2012104812907 A CN2012104812907 A CN 2012104812907A CN 201210481290 A CN201210481290 A CN 201210481290A CN 102955710 A CN102955710 A CN 102955710A
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Abstract
The invention discloses a method for upgrading a vehicle-mounted terminal firmware based on a GPRS (General Packet Radio Service) channel. The method comprises the following steps of: A, starting; B, transmitting the firmware through a GPRS wireless network channel; C, reading and saving the firmware to a spiflash editor; D, judging whether a Flash burner mark meets or not, if yes, entering the step E, and otherwise, entering the step F; E, reading firmware burning from the spiflash editor and clearing away the burning mark; F, skipping to an application code part; and G, ending. The method disclosed by the invention has the beneficial effects that the firmware is directly transmitted and is remotely upgraded through the GPRS wireless network channel; the phenomena that field workers go on the vehicle for disassembling the machine and normal use of the vehicle by a vehicle owner is hindered are avoided; the firmware upgrade on a computer is directly finished by background operators; and a plurality of machines can be simultaneously operated, so that the waste of great labor force and financial resources is avoided.
Description
Technical field
The present invention relates to the car-mounted terminal firmware upgrade method, relate in particular to a kind of car-mounted terminal firmware upgrade method based on the GPRS passage.
Background technology
Traditional vehicle carrier communication equipment is by the staff equipment to be removed from car, and carries notebook and connect firmware updating with data line, perhaps equipment is taken back company and disassembles shell and finish upgrading.
The firmware upgrade method of traditional vehicle carrier communication equipment has following defective:
1. traditional vehicle carrier communication equipment dress just is not easy splitly to get off onboard, not only requires the staff to possess very high assembling level, also will the line construction of every kind of automobile be perfectly clear.
2. allow the car owner stop and the equipment of pulling down uses the very large obstruction of generation normally to the car owner, can allow the car owner produce great complaint, can more allow the car owner complain if the whole process of operating personnel has delayed for a long time.
3. if need the machine quantity of upgrading huge, this will be a huge quantities, can waste huge manpower, financial resources.
Summary of the invention
In order to solve the problems of the prior art, the invention provides a kind of car-mounted terminal firmware upgrade method based on the GPRS passage.
The invention provides a kind of car-mounted terminal firmware upgrade method based on the GPRS passage, may further comprise the steps:
A, beginning;
B, send firmware by the GPRS wireless tunnel;
C, read and be saved in spi flash programmable device;
Whether D, Flash burning sign satisfy, if satisfy, then enter step e, if do not satisfy, then enter step F;
E, read firmware burning from spi flash programmable device, remove the burning sign;
F, jump to the application code place;
G, end.
As a further improvement on the present invention, step C is that application module receives by the GPRS wireless tunnel, is saved in outside spi flash programmable device.
The invention has the beneficial effects as follows: by such scheme, without field personnel's teardown of engine of getting on the bus, directly by GPRS wireless tunnel transmission firmware, carry out remote firmware updating; Directly by GPRS wireless tunnel transmission firmware, the car owner can not know whole process, does not hinder the car owner normally to use vehicle yet; Directly finish on computers firmware upgrade by the consistency operation personnel, and a plurality of machine can carry out simultaneously, avoid the waste with a large amount of manpowers, financial resources.
Description of drawings
Fig. 1 is the schematic flow sheet of a kind of car-mounted terminal firmware upgrade method based on the GPRS passage of the present invention.
Embodiment
The present invention is further described below in conjunction with description of drawings and embodiment.
As shown in Figure 1, a kind of car-mounted terminal firmware upgrade method based on the GPRS passage may further comprise the steps:
A, beginning;
B, send firmware by the GPRS wireless tunnel;
C, read and be saved in spi flash programmable device;
Whether D, Flash burning sign satisfy, if satisfy, then enter step e, if do not satisfy, then enter step F;
E, read firmware burning from spi flash programmable device, remove the burning sign;
F, jump to the application code place;
G, end.
As shown in Figure 1, step C is that application module receives by the GPRS wireless tunnel, is saved in outside spi flash programmable device.
IAP, full name are " In-Application Programming ", and Chinese is interpreted as " programming " in program.IAP be a kind of to the external interface by microcontroller (such as USART, IIC, CAN, USB, Ethernet interface or even outside flash) to just carry out the technology (noticing that this is different from ICP or ISP technology fully) of the renewal of internal processes at the microcontroller of working procedure.ICP(In-Circuit Programming) technology is namely carried out program burn writing by in-circuit emulator to single-chip microcomputer, and the ISP technology then is the programming technology by the built-in bootloader program designation of single-chip microcomputer.No matter be ICP technology or ISP technology, all need to have mechanical operation as connecting downloading wire, jumper cap etc. is set.If the circuit board of product has been sealed in the shell layer by layer, carry out program updates to it difficult undoubtedly, if product is installed on the place that narrow space etc. is difficult to touch, especially a disaster.If but advance to have introduced the IAP technology, then can avoid above-mentioned awkward situation fully, and if use remote or wireless data transmission scheme, even can realize remote programmable and wireless programming.This definitely is that ICP or ISP technology can't be accomplished.Certain microcontroller supports that but the primary prerequisite of IAP technology is its microcontroller that must be based on the overprogram flash memory.We select the STM32 microcontroller with programmable onboard flash memory at present, simultaneously STM32 have quantitatively with kind on very abundant peripheral communication interfaces all, therefore realize that at STM32 the IAP technology is feasible.
Application module receives by can or gprs, is saved in outside spi flash, and a sign of appointing can be set simultaneously, and software restarting enters the bootloader module afterwards.The bootloader module detects this sign and just advances the bootloader routine, otherwise just jumps to application code.The also compatible original uart bootloader that passes through of code simultaneously.
GPRS is the abbreviation of general packet radio service technology (General Packet Radio Service), and it is a kind of mobile data services that the gsm mobile telephone user can use.GPRS can say the continuity of GSM.GPRS is to transmit with package (Packet) formula with in the past continuously different in the mode of channel transmission, so the expense that the user bears is to calculate with its data transmission unit, is not its whole channel of use, and is comparatively cheap in theory.The transfer rate of GPRS can be promoted to 56 even 114Kbps.
As shown in Figure 1, a kind of car-mounted terminal firmware upgrade method based on the GPRS passage provided by the invention without field personnel's teardown of engine of getting on the bus, directly by GPRS wireless tunnel transmission firmware, carries out remote firmware updating; Directly by GPRS wireless tunnel transmission firmware, the car owner can not know whole process, does not hinder the car owner normally to use vehicle yet; Directly finish on computers firmware upgrade by the consistency operation personnel, and a plurality of machine can carry out simultaneously, avoid the waste with a large amount of manpowers, financial resources.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that implementation of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (2)
1. the car-mounted terminal firmware upgrade method based on the GPRS passage is characterized in that, may further comprise the steps:
A, beginning;
B, send firmware by the GPRS wireless tunnel;
C, read and be saved in spi flash programmable device;
Whether D, Flash burning sign satisfy, if satisfy, then enter step e, if do not satisfy, then enter step F;
E, read firmware burning from spi flash programmable device, remove the burning sign;
F, jump to the application code place;
G, end.
2. described car-mounted terminal firmware upgrade method based on the GPRS passage according to claim 1 is characterized in that: step C is, application module receives by the GPRS wireless tunnel, is saved in outside spi flash programmable device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104812907A CN102955710A (en) | 2012-11-23 | 2012-11-23 | Method for upgrading vehicle-mounted terminal firmware based on GPRS (General Packet Radio Service) channel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012104812907A CN102955710A (en) | 2012-11-23 | 2012-11-23 | Method for upgrading vehicle-mounted terminal firmware based on GPRS (General Packet Radio Service) channel |
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| CN102955710A true CN102955710A (en) | 2013-03-06 |
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| CN2012104812907A Pending CN102955710A (en) | 2012-11-23 | 2012-11-23 | Method for upgrading vehicle-mounted terminal firmware based on GPRS (General Packet Radio Service) channel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309707A (en) * | 2013-05-29 | 2013-09-18 | 扬州泰博汽车电子智能科技有限公司 | Vehicle wireless application burning system and burning method |
| CN104331312A (en) * | 2014-11-24 | 2015-02-04 | 东软熙康健康科技有限公司 | Firmware updating method and embedded device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158544A (en) * | 2011-02-25 | 2011-08-17 | 深圳市元征软件开发有限公司 | Method and device for remote upgrading of vehicle-mounted electronic device |
| CN102291424A (en) * | 2011-05-31 | 2011-12-21 | 深圳市元征软件开发有限公司 | Vehicle-mounted GPRS (general packet radio service) communication system with FTP (file transfer protocol) remote wireless upgrading function and method thereof |
| CN102662706A (en) * | 2012-04-01 | 2012-09-12 | 西安合众思壮导航技术有限公司 | Method for remotely reliably upgrading XIP (execute in place) chip software |
-
2012
- 2012-11-23 CN CN2012104812907A patent/CN102955710A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158544A (en) * | 2011-02-25 | 2011-08-17 | 深圳市元征软件开发有限公司 | Method and device for remote upgrading of vehicle-mounted electronic device |
| CN102291424A (en) * | 2011-05-31 | 2011-12-21 | 深圳市元征软件开发有限公司 | Vehicle-mounted GPRS (general packet radio service) communication system with FTP (file transfer protocol) remote wireless upgrading function and method thereof |
| CN102662706A (en) * | 2012-04-01 | 2012-09-12 | 西安合众思壮导航技术有限公司 | Method for remotely reliably upgrading XIP (execute in place) chip software |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103309707A (en) * | 2013-05-29 | 2013-09-18 | 扬州泰博汽车电子智能科技有限公司 | Vehicle wireless application burning system and burning method |
| CN104331312A (en) * | 2014-11-24 | 2015-02-04 | 东软熙康健康科技有限公司 | Firmware updating method and embedded device |
| CN104331312B (en) * | 2014-11-24 | 2018-04-27 | 东软熙康健康科技有限公司 | A kind of firmware upgrade method and embedded device |
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Application publication date: 20130306 |