CN103970480A - Automobile computer diagnosing instrument SD (Secure Digital) memory card FLASH recovery - Google Patents
Automobile computer diagnosing instrument SD (Secure Digital) memory card FLASH recovery Download PDFInfo
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- CN103970480A CN103970480A CN201310034153.3A CN201310034153A CN103970480A CN 103970480 A CN103970480 A CN 103970480A CN 201310034153 A CN201310034153 A CN 201310034153A CN 103970480 A CN103970480 A CN 103970480A
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Abstract
The invention relates to the FLASH recovery upgrade of a computer detection terminal, namely an SD (Secure Digital) memory card used for fault detection and maintenance. The computer detection terminal for fault detection and maintenance is connected to a computer through the provided SD memory card instead of a serial port, and program files in the SD memory card are read and recovered to a corresponding FLASH, so that the upgrade can be realized. Therefore, the maintenance personnel can upgrade the computer detection terminal for fault detection and maintenance more conveniently and quickly, and the conventional method that a traditional machine is upgraded after being connected to a computer through a serial port line is abandoned.
Description
Technical field
The present invention relates to a kind of terminal-SD card of the computer detection for fault detect and maintenance FLASH and write with a brush dipped in Chinese ink upgrading.
Background technology
SD card (Secure Digital Memory Card) is a kind of storage card of based semiconductor flash technology, 1999, has jointly been developed by PANASONIC, Toshiba and SanDisk company of the U.S..2000, Zhe Ji company initiated to have set up SD association (Secure Digital Association is called for short SDA), has a strong lineup, and had attracted a large amount of manufacturers to participate in.Comprising IBM, Microsoft, Motorola, NEC, Samsung etc.Under the promotion of these leading manufacturers, SD card has become most widely used a kind of storage card in current consumption digital equipment.SD jig has the multifunctional storage card of the various features such as large capacity, high-performance, safety.
And the computer detection terminal of SD card and fault detect and maintenance is combined in to current useless arriving on the market, the computer detection terminal of traditional fault detect and maintenance seldom can be upgraded, general is all the program being cured, and just there is no other ways when running into the vehicle that can not survey.Also having fault detect that some producers do and the computer detection terminal of maintenance to upgrade, is all that the common RS232 serial ports that passes through connects computer and upgrades, and serial ports transmission flank speed is 20kb/s, and this upgrade method can be lost time very much.The present invention breaks upgrade mode in the past, and by SD card upgrade, transfer rate improves greatly, makes the user can be more convenient and faster to the use of upgrading of the computer detection terminal of fault detect and maintenance.
Summary of the invention
For overcoming the above-mentioned defect of existing traditional upgrade method, the invention provides a kind of intelligentized SD card FLASH and write with a brush dipped in Chinese ink upgrading, this upgrade method not only can improve efficiency and the accuracy of upgrading, but also compatible current all computers use upgrading.Upgrading is in the past all to connect computer by RS232 Serial Port Line to realize, and major part computer on the market can not be equipped with RS232 interface at present, all will configure a RS232 and turn USB
Line, and the computer detection of fault detect and maintenance terminal-SD card FLASH write with a brush dipped in Chinese ink upgrading consider that this phenomenon, user can be used the card reader of a USB, in PC, use SD card.Built-in reader device on some New-type computer.User can directly be inserted into program of file copy on computer with SD card, if computer is not equipped with SD draw-in groove, the computer detection terminal inner of fault detect and maintenance has made SD card driving circuit, and user can connect to copy SD card content by usb data line.
The technical scheme that the present invention realizes above-mentioned purpose is: the computer detection terminal staging main technical points of fault detect and maintenance, comprises that SD card reads, NANDFLASH wipes, reads and write with a brush dipped in Chinese ink.SD card of the present invention reads with high speed card standard and reads, adopt 4 SD transmission modes to read, a kind of efficient transmission plan is provided, it can shorten fault detect and the maintenance widely computer detection terminal staging time used after promoting the use of, has had great practical value.NANDFLASH wipes, reads and writes with a brush dipped in Chinese ink is the document providing in strict accordance with Samsung, carries out emulation according to desired sequential chart, and driving N ANDFLASH normally moves.User clicks the quick upgrading of menu the inside, and the computer detection terminal meeting Automatically invoked SD card program file of fault detect and maintenance, downloads up-to-date ROMPaq, to adapt to vehicle up-to-date on market.
Brief description of the drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic diagram of a kind of use-pattern of the present invention.
Embodiment
Processor scanning button of the present invention, after detecting that user wants ROMPaq button to be triggered, processor can start to read the file content in SD card, and first whether the section of sentencing is upgrade file, if not upgrade file, it can return to error informing customer upgrade file error or without upgrade file.If upgrade file, processor can read taking page as unit the byte number of one page and write in NAND FLASH from SD card sector, writes NANDFLASH and also writes with a brush dipped in Chinese ink taking page as unit, circulates successively and reads from SD card, write in NANDFLASH, until the download of whole file is complete.
SD card is supported three kinds of transmission modes altogether: SPI pattern (independent sequence input and sequence output), 1 SD pattern (independent instruction and data channel, exclusive transformat), 4 SD patterns (are used extra stitch and stitch that some resets.Support the parallel transmission of four bit wides).Low speed cartoon is often supported 0-400 kilobits/second data transmission rate, adopts SPI and 1 SD transmission mode.Card is supported 0-100 mbit data transmission rate at a high speed, adopts 4 SD transmission modes; Support 0-25 mbit, adopt SPI and 1 SD pattern.And the employing of the computer detection terminal staging SD card transmission mode of this fault detect and maintenance is exactly 4 SD transmission modes.Than former upgrade method fast more than ten times.
Enable nand gate Flash data storage device is the ideal chose of vast capacity data storage, the enable nand gate Flash memory device of Samsung company is the vast capacity data storage device that a cost performance is very high, the current data storage that is widely used in USB flash disk, MP3 and digital camera.This device is made up of piece (block), and each has 32 pages, and every page has 528 bytes, and this 528 byte is divided into A, B, C San Ge district.Need to send three addresses by I/O mouth to the addressing of every one page, indicate and want a certain byte in the page of addressing and the designation area of page by the address of sending.For the control signal of this chip, produce by decoding and logical combination, be to simplify circuit, the size of dwindling PCB has adopted the CPLD (CPLD) of XILINX company of the U.S. in product.
In fact the Major Difficulties of the computer detection terminal staging scheme of whole fault detect and maintenance is exactly that software is realized, and SD card reads and writing with a brush dipped in Chinese ink of NANDFLASH is all to have strict sequential standard restriction.So realizing ROMPaq must carry out simulated timing diagrams according to this standard document and realize.SD card file reading relates to file system, and file system is method and the data structure of operating system for the file on clear and definite disk or subregion; The i.e. method of constituent act on disk.From system perspective, file system is that file memory space is organized and distributed, the system of being responsible for file storage and the file depositing in being protected and retrieved.Specifically, it is responsible for user and sets up file, deposits in, reads, amendment, dump file, and file etc. is cancelled in the access of control documents in the time that user does not re-use.
Claims (6)
1. write with a brush dipped in Chinese ink a upgrading for computer detection terminal-SD card FLASH of fault detect and maintenance, sense terminals itself, with SD card, is write with a brush dipped in Chinese ink in corresponding FLASH again and is realized upgrading by the program file inside reading from SD card.
2. SD card FLASH as claimed in claim 1 writes with a brush dipped in Chinese ink upgrading, it is characterized in that having adopted SD card upgrade mode, has substituted previous serial ports upgrade mode, makes updating speed improve 10 times.
3. SD card FLASH as claimed in claim 1 writes with a brush dipped in Chinese ink upgrading, it is characterized in that described SD card and processor communication transmit by 4 SD transmission modes, and processor obtains data and is transferred in FLASH by parallel port from SD card.
4. SD card FLASH as claimed in claim 1 writes with a brush dipped in Chinese ink upgrading, it is characterized in that described ROMPaq is stored in SD card, and program file is BIN stored in file format.
5. the FLASH as described in claim 1,3, it is characterized in that described FLASH type selecting is NANDFLASH, each upgrading is write with a brush dipped in Chinese ink NANDFLASH and is read and write taking page as unit, and all to detect NANDFLASH before each upgrading, see if there is bad piece, then start to wipe NANDFLASH.If do not wipe NANDFLASH, can write with a brush dipped in Chinese ink failure.
6. the SD card as described in claim 1,2,3 or 4, it is characterized in that described SD card can take out and be inserted into program of file copy file on computer from the computer detection terminal of fault detect and maintenance, also can not need to take out from the computer detection terminal of fault detect and maintenance, but copy and get required upgrade file by USB line connection computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034153.3A CN103970480A (en) | 2013-01-30 | 2013-01-30 | Automobile computer diagnosing instrument SD (Secure Digital) memory card FLASH recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310034153.3A CN103970480A (en) | 2013-01-30 | 2013-01-30 | Automobile computer diagnosing instrument SD (Secure Digital) memory card FLASH recovery |
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| Publication Number | Publication Date |
|---|---|
| CN103970480A true CN103970480A (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310034153.3A Pending CN103970480A (en) | 2013-01-30 | 2013-01-30 | Automobile computer diagnosing instrument SD (Secure Digital) memory card FLASH recovery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867985A (en) * | 2016-04-25 | 2016-08-17 | 广州路派电子科技有限公司 | Method for upgrading file through vehicle-mounted decoder software |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070283428A1 (en) * | 2000-01-06 | 2007-12-06 | Super Talent Electronics, Inc. | Managing Bad Blocks In Flash Memory For Electronic Data Flash Card |
| CN101324899A (en) * | 2008-08-05 | 2008-12-17 | 北京海尔集成电路设计有限公司 | Method for rapidly writing NAND type FLASH |
| CN102681857A (en) * | 2011-03-07 | 2012-09-19 | 北京博创理想科技有限公司 | Method and device for realizing restoration and update of vehicle-mounted software system |
| CN202632773U (en) * | 2012-05-24 | 2012-12-26 | 天津百亚达科技有限公司 | Portable serial FLASH programmer based on SD (Secure Digital) card |
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2013
- 2013-01-30 CN CN201310034153.3A patent/CN103970480A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070283428A1 (en) * | 2000-01-06 | 2007-12-06 | Super Talent Electronics, Inc. | Managing Bad Blocks In Flash Memory For Electronic Data Flash Card |
| CN101324899A (en) * | 2008-08-05 | 2008-12-17 | 北京海尔集成电路设计有限公司 | Method for rapidly writing NAND type FLASH |
| CN102681857A (en) * | 2011-03-07 | 2012-09-19 | 北京博创理想科技有限公司 | Method and device for realizing restoration and update of vehicle-mounted software system |
| CN202632773U (en) * | 2012-05-24 | 2012-12-26 | 天津百亚达科技有限公司 | Portable serial FLASH programmer based on SD (Secure Digital) card |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105867985A (en) * | 2016-04-25 | 2016-08-17 | 广州路派电子科技有限公司 | Method for upgrading file through vehicle-mounted decoder software |
| WO2017186089A1 (en) * | 2016-04-25 | 2017-11-02 | 广州路派电子科技有限公司 | Method for upgrading files by vehicle-mounted decoder software |
| CN105867985B (en) * | 2016-04-25 | 2018-12-21 | 广州路派电子科技有限公司 | A kind of method of vehicle-mounted decoder software upgrade file |
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Application publication date: 20140806 |