CN103677919A - Airborne software updating method based on serial port - Google Patents
Airborne software updating method based on serial port Download PDFInfo
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- CN103677919A CN103677919A CN201310674384.0A CN201310674384A CN103677919A CN 103677919 A CN103677919 A CN 103677919A CN 201310674384 A CN201310674384 A CN 201310674384A CN 103677919 A CN103677919 A CN 103677919A
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Abstract
The invention belongs to the field of computer software design, and particularly relates to an airborne software updating method based on a serial port. Airborne equipment is connected with a maintenance terminal through the serial port. Firstly, content of software to be updated is uploaded to the airborne equipment by the maintenance terminal through data transmission; then, programming is carried out through FLASH programming instructions of the airborne equipment; finally, software updating of the airborne equipment is completed. The method is easy to implement and avoids the loss of hardware facilitates of the airborne equipment.
Description
Technical field
The invention belongs to computer software design field, relate to a kind of Oftware updating method, be specifically related to a kind of Airborne Software update method based on serial ports.
Background technology
In the debugging and later maintenance process of embedded airborne computer, exploitation and maintainer need to be frequently to the renewal of programming of the Airborne Software of operation, with authentication function realization, whether meet the demands.At present, software upgrading need to be upgraded as emulator by special-purpose programming device, in the method, generally need to open cabinet, removes gusset plate/barricade, connects emulator, implement that programming is upgraded, five steps returns to form.Not only length consuming time, and the instrument of need to employing is carried out dismounting to hardware device, has potential damage risk.
In addition, adopt said method also to have some other problemses:
1, programming device kind is various, software operation interface complicated, needs stronger professional knowledge.
2, most DLL (dynamic link library) belong to resource on plate, there is no maintenance interface, just can expose DLL (dynamic link library) after need to dismantling hardware, and the easy disassembling of hardware is caused to damage to self or peripheral devices.
3, time efficiency is low, especially under external field environment, harsher to time requirement.
4, increase cost, run into programming device when heavier, may also need laboratory to recover.
Summary of the invention
The problem existing based on prior art in background technology, the present invention proposes the Airborne Software update method based on serial ports that a kind of embodiment is simple, work efficiency is high, hardware loss is little.
Concrete technical scheme of the present invention is:
The invention has the beneficial effects as follows:
1, by adopting this method, no longer need to carry heavy programming device and safeguard, also do not need loaded down with trivial details hardware dismantlement work, only need a simple debugging to connect with serial ports, can complete software upgrade function.
2, by the present invention, shorten significantly debugging cycle, improved the work efficiency of flight-line service, reduced cost.
3, the present invention is connected and is realized software upgrading by serial ports, has avoided the damage of hardware, has reduced the consumption of hardware.
Accompanying drawing explanation
Fig. 1 is schematic flow sheet of the present invention.
Fig. 2 is data transmission flow process schematic diagram in the present invention.
Embodiment
In the debug process of embedded Airborne Software, whether developer needs often the software in airborne computer to be upgraded, with authentication function, realize and meeting the demands.In the maintenance and escalation process of software, software maintenance personnel also need to carry out to outfield the renewal of software.In above-mentioned work, software upgrading need to, by special-purpose programming device as emulator upgrades, therefore, can produce many problems:
The present invention, from software angle, designs a kind of Airborne Software update method based on serial ports, does not need to depend on hardware programming equipment, can realize the renewal of Airborne Software and maintenance.
The concrete steps of the method are:
Step 1] operating personnel select serial ports and maintenance terminal on airborne equipment to connect;
Step 2] operating personnel power up to airborne equipment, and display operation menu, selects online programming option at actions menu, and maintenance terminal input command is also sent to airborne equipment by order, and notice airborne equipment enters " software upgrading " state;
Step 3] operating personnel select software to be updated and the length information of programming address information and software to be updated are sent to airborne equipment by the display interface of maintenance terminal;
Step 4] airborne equipment receives programming address information that maintenance terminal sends and the length information of software to be updated, and judges that whether information is legal;
If information is legal, airborne equipment starts to wait for that maintenance terminal sends the content of software to be updated;
If program regions is illegal, airborne equipment provides points out and stops software upgrading process;
Step 5] maintenance terminal is sent to airborne equipment according to Data Transport Protocol by the content of software to be updated;
The concrete implementation step of this step is as follows:
Step 5.1] maintenance terminal changes into data layout by software content to be updated and is ready for sending, and to converting the software content to be updated of data layout to, take every 1024 bytes as a frame is (during less than 1024 byte before transmission, upwards after nybble alignment as a frame) carry out CRC32 verification, and at the additional check code of postamble;
Step 5.2] maintenance terminal is step 5.1] in convert the software content to be updated Yi Zhengwei unit of data layout to, send to frame by frame airborne equipment;
Step 5.3] airborne equipment often receives after the data of a frame data format, and self regenerates check code, and compares with the check code that receives each frame data; Then with response format, feed back to maintenance terminal, maintenance terminal judges whether to carry out the transmission of next frame software content to be updated according to responsive state;
Step 5.4] repeated execution of steps 5.1] to step 5.3], until maintenance terminal is by the whole end of transmission of software content to be updated.
Step 6] airborne equipment receives the content of software to be updated, and call FLASH programming instruction, treat update software and programme;
Step 7] content of airborne equipment software to be updated that programmed result and former airborne equipment are received carries out verification, and after check results is correct, software upgrading completes.
The concrete implementation step of this step is:
7.1] airborne equipment all writes the software content to be updated receiving according to data layout the FLASH region of airborne equipment;
7.2] airborne equipment will write the data in Flash region and the content to be updated of maintenance terminal is carried out byte-by-byte verification;
As all identical, software upgrading completes;
Otherwise prompting is upgraded unsuccessfully, exits " software upgrading state ".
7.3], when upgrading unsuccessfully, maintenance terminal will restart whole software upgrading process.
Claims (3)
1. the Airborne Software update method based on serial ports, is characterized in that, comprises the following steps:
1] select serial ports and maintenance terminal on airborne equipment to connect;
2], at maintenance terminal input command and order is sent to airborne equipment, notice airborne equipment enters " software upgrading " state;
3] maintenance terminal sends the length information of programming address information and software to be updated;
4] the programming address information that airborne equipment reception maintenance terminal is sent and the length information of software to be updated, and judge that whether information is legal;
If information is legal, airborne equipment starts to wait for that maintenance terminal sends the content of software to be updated;
If program regions is illegal, airborne equipment provides points out and stops software upgrading process;
5] maintenance terminal is sent to airborne equipment according to Data Transport Protocol by the content of software to be updated;
6] airborne equipment receives the content of software to be updated, and calls FLASH programming instruction, treats update software and programmes;
The content of the software to be updated that 7] airborne equipment is received programmed result and former airborne equipment is carried out verification, and after check results is correct, software upgrading completes.
2. the Airborne Software update method based on serial ports according to claim 1, is characterized in that described step 5] in, maintenance terminal is sent to airborne equipment according to Data Transport Protocol by the content of software to be updated; Its concrete steps are:
5.1] maintenance terminal changes into data layout by software content to be updated and is ready for sending, and to converting the software content to be updated of data layout to, take every 1024 bytes as a frame check before transmission, and at the additional check code of postamble;
5.2] maintenance terminal is by step 5.1] in convert the software content to be updated Yi Zhengwei unit of data layout to, send to frame by frame airborne equipment;
5.3] airborne equipment often receives after the data of a frame data format, and self regenerates check code, and compares with the check code that receives each frame data; Then with response format, feed back to maintenance terminal, maintenance terminal judges whether to carry out the transmission of next frame software content to be updated according to responsive state;
5.4] repeated execution of steps 5.1] to step 5.3], until maintenance terminal is by the whole end of transmission of software content to be updated.
3. the Airborne Software update method based on serial ports according to claim 1, is characterized in that described step 7] in, the content of the software to be updated that airborne equipment is received programmed result and former airborne equipment is carried out verification; Its concrete steps are:
7.1] airborne equipment all writes the software content to be updated receiving according to data layout the FLASH region of airborne equipment;
7.2] airborne equipment will write the data in Flash region and the content to be updated of maintenance terminal is carried out byte-by-byte verification;
As all identical, software upgrading completes;
Otherwise prompting is upgraded unsuccessfully, exits " software upgrading state ".
7.3], when upgrading unsuccessfully, maintenance terminal will restart whole software upgrading process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310674384.0A CN103677919A (en) | 2013-12-10 | 2013-12-10 | Airborne software updating method based on serial port |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310674384.0A CN103677919A (en) | 2013-12-10 | 2013-12-10 | Airborne software updating method based on serial port |
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| CN103677919A true CN103677919A (en) | 2014-03-26 |
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| CN201310674384.0A Pending CN103677919A (en) | 2013-12-10 | 2013-12-10 | Airborne software updating method based on serial port |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049996A (en) * | 2014-05-29 | 2014-09-17 | 湖北三江航天红峰控制有限公司 | Method for carrying out software updating of missile-borne computer based on serial port |
| CN107453891A (en) * | 2016-06-01 | 2017-12-08 | 艾默生环境优化技术(苏州)有限公司 | Maintenance device, field device and method for maintaining and updating a field device |
| CN108234160A (en) * | 2016-12-14 | 2018-06-29 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of airborne core processing computer radio upgrade method |
| WO2022206190A1 (en) * | 2021-03-31 | 2022-10-06 | 地平线征程(杭州)人工智能科技有限公司 | Protection circuit, method and apparatus for data path, and computer-readable storage medium |
-
2013
- 2013-12-10 CN CN201310674384.0A patent/CN103677919A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104049996A (en) * | 2014-05-29 | 2014-09-17 | 湖北三江航天红峰控制有限公司 | Method for carrying out software updating of missile-borne computer based on serial port |
| CN107453891A (en) * | 2016-06-01 | 2017-12-08 | 艾默生环境优化技术(苏州)有限公司 | Maintenance device, field device and method for maintaining and updating a field device |
| CN108234160A (en) * | 2016-12-14 | 2018-06-29 | 中国航空工业集团公司西安航空计算技术研究所 | A kind of airborne core processing computer radio upgrade method |
| CN108234160B (en) * | 2016-12-14 | 2021-05-07 | 中国航空工业集团公司西安航空计算技术研究所 | Wireless upgrading method for airborne core processing computer |
| WO2022206190A1 (en) * | 2021-03-31 | 2022-10-06 | 地平线征程(杭州)人工智能科技有限公司 | Protection circuit, method and apparatus for data path, and computer-readable storage medium |
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Application publication date: 20140326 |
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