CN113407472A - Embedded device and program parallel downloading method thereof - Google Patents
Embedded device and program parallel downloading method thereof Download PDFInfo
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- CN113407472A CN113407472A CN202110729111.6A CN202110729111A CN113407472A CN 113407472 A CN113407472 A CN 113407472A CN 202110729111 A CN202110729111 A CN 202110729111A CN 113407472 A CN113407472 A CN 113407472A
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- downloading
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/40—Bus structure
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F13/00—Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F13/38—Information transfer, e.g. on bus
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4204—Bus transfer protocol, e.g. handshake; Synchronisation on a parallel bus
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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
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- General Physics & Mathematics (AREA)
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- Stored Programmes (AREA)
Abstract
The invention discloses an embedded device and a program parallel downloading method thereof, wherein the method comprises the following steps: before downloading the program, the main CPU board inquires whether other board cards support parallel downloading; if yes, the main CPU board inquires whether other board cards finish preparation work of parallel downloading; if the parallel downloading is finished, the main CPU board sends parallel downloading data to a plurality of other board cards; after the downloading is finished, the main CPU board checks whether each board card is successfully downloaded; if the downloading is successful, whether files need to be downloaded in parallel is inquired, and if not, the downloading is finished. Compared with the prior art, the method and the device really realize parallel downloading, improve the downloading efficiency and improve the fault-tolerant rate.
Description
Technical Field
The invention belongs to the field of embedded device development, relates to a downloading method of various files, and particularly relates to an embedded device and a program parallel downloading method thereof.
Background
The embedded device is a key device for safe and stable operation in the fields of power systems, industrial control and the like. Since the embedded device requires a program driver to perform a specific function, the embedded device first needs to download a program file. Some program files are often large, if the number of board cards is large, the problem of consuming overlong time is presented, and the production efficiency is seriously affected, so that a method for downloading data with high efficiency is necessary to be researched.
In the prior art, parallel downloading modes can be divided into two modes, one mode is a downloading mode which adopts multithreading aiming at the plug-in of the same model, and is mostly based on network transmission, is parallel macroscopically, but is actually serial microscopically; the other method is that a plurality of board cards are respectively connected with corresponding downloaders, the downloading mode wastes resources, and in essence, the method is also used for downloading a single board card, namely, one downloader corresponds to one board card.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to provide an embedded device, which adopts a flexible mode of combining a unique address and a public address to realize parallel high-speed data downloading; a second object of the present invention is to provide a method for parallel downloading of programs by an embedded device that is reliable and efficient.
The technical scheme is as follows: the embedded device comprises a main CPU board and a plurality of other board cards, wherein the main CPU board is connected with the plurality of other board cards through a data bus, and the main CPU board is used for downloading programs to be downloaded to the other board cards; the plurality of other boards include unique addresses and public addresses.
The public address needs to be appointed in advance and is not repeated with the unique address; the public address is used for parallel transfer of programs.
The embedded device supports parallel downloading of a plurality of program files, and downloading efficiency is improved.
The data bus is a CAN bus.
The invention also comprises a program parallel downloading method of the embedded device, which comprises the following steps:
(1) before downloading the program, the main CPU board inquires whether other board cards support parallel downloading;
(2) if yes, the main CPU board inquires whether other board cards finish preparation work of parallel downloading;
(3) if the parallel downloading is finished, the main CPU board sends parallel downloading data to a plurality of other board cards;
(4) after the downloading is finished, the main CPU board checks whether each board card is successfully downloaded;
(5) if the downloading is successful, whether files need to be downloaded in parallel is inquired, and if not, the downloading is finished.
In the step (4), after the downloading is completed, each board card feeds the downloading result back to the main CPU board for verification through respective unique address.
In the step (4), if the main CPU board finds that there is a board card that fails to download during verification, the main CPU board determines to download again or directly fails to alarm according to the configuration.
And if the downloading is carried out again, the board card failed in the downloading is downloaded again through the unique address of the board card.
Has the advantages that: compared with the prior art, the invention has the beneficial effects that: the parallel downloading is really realized, the time is saved, and the production efficiency is improved.
Drawings
FIG. 1 is a schematic flow diagram of the process of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail below with reference to the detailed description and the accompanying drawings.
The embedded device comprises a main CPU board and a plurality of other board cards, wherein the main CPU board is used for downloading programs to be downloaded to the other board cards, and the main CPU board is connected with the other board cards through a data bus; in this embodiment, the data bus is a CAN bus. The plurality of other boards include a unique address and a public address. The public address needs to be agreed in advance and is not repeated with the unique address, and the public address is used for parallel transmission programs. The embedded device supports the parallel downloading of a plurality of program files, namely, the file A is downloaded and then the file B is downloaded, and the number of the files is not limited.
As shown in fig. 1, the present invention further includes a program parallel downloading method for an embedded device, including the following steps:
(1) before downloading the program, the main CPU board inquires whether other board cards of the program to be downloaded support parallel downloading;
(2) if yes, the main CPU board inquires whether the board cards of other programs to be downloaded complete preparation work of parallel downloading;
(3) if the program downloading is finished, the main CPU board sends parallel downloading data to a plurality of board cards of other programs to be downloaded;
(4) after downloading, each board card feeds a downloading result back to the main CPU board through respective unique address for verification, and the main CPU board verifies whether each board card is downloaded successfully; if the main CPU board finds that the board card which fails in downloading exists during verification, the main CPU board determines to download again or directly fails to alarm according to configuration; and if the downloading is carried out again, the board card failed in the downloading is downloaded again through the unique address of the board card.
(5) If the downloading is successful, whether files need to be downloaded in parallel is inquired, and if not, the downloading is finished.
The downloading process is as follows: the main CPU board inquires whether the program board card to be downloaded supports parallel downloading or not through the unique address of the program board card to be downloaded, if the program board card supports the parallel downloading function, the main CPU board groups downloaded files, when all the board cards are ready to receive the parallel downloaded data through the unique address of each board card, the data are sent out through a CAN bus, and after other board cards resolve a public address, the data are stored in the board card. After the data is downloaded, the main CPU board inquires whether the data is downloaded successfully through the unique address of each board card, other board cards return the verification result to the CPU board through the unique addresses of the other board cards, and the CPU board can judge whether the data is downloaded successfully according to the received verification information. If successful, and there is a next file to download, then a parallel download is initiated. If the returned information shows that the downloading is failed, re-downloading or direct failure warning is adopted according to the configuration.
Claims (8)
1. An embedded device, characterized by: the main CPU board is connected with the other board cards through a data bus, and the main CPU board is used for downloading programs to be downloaded to the other board cards; the plurality of other boards include unique addresses and public addresses.
2. The embedded device according to claim 1, wherein: the public address needs to be agreed upon in advance and not duplicated with the unique address.
3. The embedded device according to claim 1, wherein: the embedded device supports parallel downloading of a plurality of program files.
4. The embedded device according to claim 1, wherein: the data bus is a CAN bus.
5. A program parallel downloading method based on the embedded device of claim 1, characterized by comprising the following steps:
(1) before downloading the program, the main CPU board inquires whether other board cards support parallel downloading;
(2) if yes, the main CPU board inquires whether other board cards finish preparation work of parallel downloading;
(3) if the parallel downloading is finished, the main CPU board sends parallel downloading data to a plurality of other board cards;
(4) after the downloading is finished, the main CPU board checks whether each board card is successfully downloaded;
(5) if the downloading is successful, whether files need to be downloaded in parallel is inquired, and if not, the downloading is finished.
6. The program parallel downloading method of the embedded device according to claim 5, wherein: in the step (4), after the downloading is completed, each board card feeds the downloading result back to the main CPU board for verification through respective unique address.
7. The program parallel downloading method of the embedded device according to claim 5, wherein: in the step (4), if the main CPU board finds that there is a board card that fails to download during verification, the main CPU board determines to download again or directly fails to alarm according to the configuration.
8. The program parallel downloading method of the embedded device according to claim 7, wherein: and if the downloading is carried out again, the board card failed in the downloading is downloaded again through the unique address of the board card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110729111.6A CN113407472A (en) | 2021-06-29 | 2021-06-29 | Embedded device and program parallel downloading method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110729111.6A CN113407472A (en) | 2021-06-29 | 2021-06-29 | Embedded device and program parallel downloading method thereof |
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| Publication Number | Publication Date |
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| CN113407472A true CN113407472A (en) | 2021-09-17 |
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| CN202110729111.6A Pending CN113407472A (en) | 2021-06-29 | 2021-06-29 | Embedded device and program parallel downloading method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594709A (en) * | 2022-03-03 | 2022-06-07 | 安徽大学 | Multi-path parallel writing piece and detection system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10105409A (en) * | 1996-10-02 | 1998-04-24 | Sharp Corp | Slave module managing system for device |
| JP2000315158A (en) * | 1999-05-06 | 2000-11-14 | Nec Saitama Ltd | Broadcast communication download circuit |
| KR20110076432A (en) * | 2009-12-29 | 2011-07-06 | 한국생산기술연구원 | System for upgrading multi-program by using can communication and method thereof |
| CN105117248A (en) * | 2015-08-20 | 2015-12-02 | 浙江中科领航汽车电子有限公司 | Program downloader of multi-split TPMS main controller and download method |
| CN109284121A (en) * | 2018-11-15 | 2019-01-29 | 中车株洲电力机车有限公司 | The method and system of accumulation power supply multistage network multi-control apparatus synchronized update program |
-
2021
- 2021-06-29 CN CN202110729111.6A patent/CN113407472A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10105409A (en) * | 1996-10-02 | 1998-04-24 | Sharp Corp | Slave module managing system for device |
| JP2000315158A (en) * | 1999-05-06 | 2000-11-14 | Nec Saitama Ltd | Broadcast communication download circuit |
| KR20110076432A (en) * | 2009-12-29 | 2011-07-06 | 한국생산기술연구원 | System for upgrading multi-program by using can communication and method thereof |
| CN105117248A (en) * | 2015-08-20 | 2015-12-02 | 浙江中科领航汽车电子有限公司 | Program downloader of multi-split TPMS main controller and download method |
| CN109284121A (en) * | 2018-11-15 | 2019-01-29 | 中车株洲电力机车有限公司 | The method and system of accumulation power supply multistage network multi-control apparatus synchronized update program |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594709A (en) * | 2022-03-03 | 2022-06-07 | 安徽大学 | Multi-path parallel writing piece and detection system |
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