CN107562841A - A kind of Fatfs systems based on MPC5748 chip EMMC cards - Google Patents
A kind of Fatfs systems based on MPC5748 chip EMMC cards Download PDFInfo
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- CN107562841A CN107562841A CN201710742048.3A CN201710742048A CN107562841A CN 107562841 A CN107562841 A CN 107562841A CN 201710742048 A CN201710742048 A CN 201710742048A CN 107562841 A CN107562841 A CN 107562841A
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Abstract
The invention discloses a kind of Fatfs systems based on MPC5748 chip EMMC cards, operating system；File system, it is connected with the operating system, for controlling storage to data, file and equipment, and provides the control to laminated tissue's form of file and catalogue, data buffering and storage authority to file；File system application program, it is connected with the file system；And hardware device, it is connected with the file system.Beneficial effects of the present invention：The present invention can realize the functions such as establishment to file and catalogue, opening, reading, write-in, closing in embedded system.
Description
Technical field
The present invention relates to storage device technical field, it particularly relates to a kind of based on MPC5748 chip EMMC cards
Fatfs systems.
Background technology
With the continuous renewal of the development of embedded technology, especially ARM technologies, cortex family chips are proposed, are made
The function of obtaining embedded device grows stronger day by day, gradually by the single-chip microcomputer epoch excessively to the microcontroller epoch, to the visit capacity of data
It is obviously improved, this requires clear data manipulation level, transparency raising, maintainable, interface standardization, transplanting
Property, reliability etc. of flexible operation and data storage be proposed higher and higher requirement, it is therefore necessary to introduce file system
Unite to complete the function of data storage and management, the interface by name access data is provided the user, so as to avoid by program
Developer directly accesses insecurity caused by internal memory.
The content of the invention
For the above-mentioned technical problem in correlation technique, the present invention proposes a kind of based on MPC5748 chip EMMC cards
Fatfs systems, the above-mentioned deficiency of prior art can be overcome.
To realize above-mentioned technical purpose, the technical proposal of the invention is realized in this way：
A kind of Fatfs systems based on MPC5748 chip EMMC cards, it includes：
Operating system；
File system, it is connected with the operating system, for controlling the storage to data, file and equipment, and offer pair
The control of laminated tissue's form of file and catalogue, data buffering and the storage authority to file；
File system application program, it is connected with the file system；With
Hardware device, it is connected with the file system.
Further, the file system includes：
File system core, it connects described file system, and application program provides the visible all api functions of user, for
Family handling function；
Cache management, it connects the file system core；With
Device driver, it connects the cache management and the hardware device.
Further, the device driver provides Unified Device driving interface, for driving the hardware device.
Further, the file system offer is necessary is used for creating, deletes file, reads file and written document etc. accordingly
System call.
Further, the operating system is windos operating systems, is grasped by transplanting Fatfs file system in windos
Make to run in system, realize file and directory creating, opening, reading, write-in, closing function.
Beneficial effects of the present invention：The present invention can be realized in embedded system establishment to file and catalogue, opening,
The functions such as reading, write-in, closing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing needed to use is briefly described, it should be apparent that, drawings in the following description are only some implementations of the present invention
Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be obtained according to these accompanying drawings
Obtain other accompanying drawings.
Fig. 1 is a kind of structure of Fatfs systems based on MPC5748 chip EMMC cards described according to embodiments of the present invention
Block diagram；
In figure：
1st, file system；2nd, file system application program；3rd, operating system；4th, hardware device；5th, file system core；6th, at a high speed
Cache management；7th, device driver.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained, belong to what the present invention protected
Scope.
As shown in figure 1, a kind of Fatfs systems based on MPC5748 chip EMMC cards described according to embodiments of the present invention,
It includes：
Operating system；
File system, it is connected with the operating system, for controlling the storage to data, file and equipment, and offer pair
The control of laminated tissue's form of file and catalogue, data buffering and the storage authority to file；
File system application program, it is connected with the file system；With
Hardware device, it is connected with the file system.
In one embodiment, the file system includes：
File system core, it connects described file system, and application program provides the visible all api functions of user, for
Family handling function；
Cache management, it connects the file system core；With
Device driver, it connects the cache management and the hardware device.
In one embodiment, the device driver provides Unified Device driving interface, described hard for driving
Part equipment.
In one embodiment, the file system offer is necessary is used for creating, deleting file, reading file and write text
The corresponding system such as part is called.
In one embodiment, the operating system is windos operating systems, is existed by transplanting Fatfs file system
Run in windos operating systems, realize file and directory creating, opening, reading, write-in, closing function.
In order to facilitate understand the present invention above-mentioned technical proposal, below by way of in specifically used mode to the present invention it is above-mentioned
Technical scheme is described in detail.
When specifically used, file system of the present invention is the important component of operating system, for controlling pair
The storage of data, file and equipment, it provides to laminated tissue's form of file and catalogue, data buffering and file is deposited
Store up the control of authority；File system offer is necessary to be used for creating, deletes file, reads the corresponding system tune such as file and written document
With；The storage of file is completed by catalogue, so the operation to catalogue is a part for file system function, file system has
Following functions：There is provided to laminated tissue's form of file and catalogue, foundation and delete the ability of file and the dynamic increasing of file
Long and data protection.
File system core of the present invention, it is the core algorithm for realizing file system, there is provided user is visible
All API（Application programming interfaces）Function, it is the set of file system function for user's handling function.
Cache management of the present invention, the size of high-speed buffer are directly connected to the processing effect of file system
Rate, efficient buffering area Processing Algorithm can increase substantially the treatment effeciency of data, at the same it for file system provide with firmly
The unrelated interface of part, basis is provided for the level of file system.
Device driver of the present invention is to provide Unified Device driving interface.
EMMC of the present invention is that MMC associations conclude, deposited mainly for the embedded of the products such as mobile phone or tablet personal computer
Reservoir standard specification；Fatfs is a general file system module, for realizing FAT files in small embedded systems
System.
In summary, the present invention can realize establishment to file and catalogue, opening in embedded system, read, write
The function such as enter, close.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.
Claims (5)
1. a kind of Fatfs systems based on MPC5748 chip EMMC cards, it is characterised in that it includes：
Operating system（3）；
File system（1）, itself and the operating system（3）Connection, for controlling the storage to data, file and equipment, and
Control to laminated tissue's form of file and catalogue, data buffering and storage authority to file is provided；
File system application program（2）, itself and the file system（1）Connection；With
Hardware device（4）, itself and the file system（1）Connection.
2. a kind of Fatfs systems based on MPC5748 chip EMMC cards according to claim 1, it is characterised in that described
File system（1）Including：
File system core（5）, it connects the file system（1）, application program（2）The visible all API letters of user are provided
Number, for user's handling function；
Cache management（6）, it connects the file system core（5）；With
Device driver（7）, it connects the cache management（6）With the hardware device（4）.
3. a kind of Fatfs systems based on MPC5748 chip EMMC cards according to claim 1, it is characterised in that described
Device driver（7）Unified Device driving interface is provided, for driving the hardware device（4）.
4. a kind of Fatfs systems based on MPC5748 chip EMMC cards according to claim 3, it is characterised in that described
File system（1）There is provided and necessary be used for creating, delete file, read the corresponding system calling such as file and written document.
5. a kind of Fatfs systems based on MPC5748 chip EMMC cards according to claim 4, it is characterised in that described
Operating system（3）It is windos operating systems, is run by transplanting Fatfs file system in windos operating systems, is realized
File and directory creating, opening, reading, write-in, closing function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742048.3A CN107562841A (en) | 2017-08-25 | 2017-08-25 | A kind of Fatfs systems based on MPC5748 chip EMMC cards |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710742048.3A CN107562841A (en) | 2017-08-25 | 2017-08-25 | A kind of Fatfs systems based on MPC5748 chip EMMC cards |
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| CN107562841A true CN107562841A (en) | 2018-01-09 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958813A (en) * | 2018-06-13 | 2018-12-07 | 北京无线电测量研究所 | file system construction method, device and storage medium |
| CN114584550A (en) * | 2021-03-30 | 2022-06-03 | 长城汽车股份有限公司 | Vehicle data uploading and storing method and device, storage medium and vehicle |
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| CN101382877A (en) * | 2008-10-15 | 2009-03-11 | 青岛海信移动通信技术股份有限公司 | FAT file data reading/writing method, system and mobile communication terminal |
| CN101441634A (en) * | 2007-11-19 | 2009-05-27 | 凤凰微电子（中国）有限公司 | Embedded type file system suitable for smart card application environment |
| US20110219149A1 (en) * | 2010-03-03 | 2011-09-08 | I/O Doctors Llc | Systems and methods for managing i/o throughput for large scale computing systems |
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2017
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101441634A (en) * | 2007-11-19 | 2009-05-27 | 凤凰微电子（中国）有限公司 | Embedded type file system suitable for smart card application environment |
| CN101382877A (en) * | 2008-10-15 | 2009-03-11 | 青岛海信移动通信技术股份有限公司 | FAT file data reading/writing method, system and mobile communication terminal |
| US20110219149A1 (en) * | 2010-03-03 | 2011-09-08 | I/O Doctors Llc | Systems and methods for managing i/o throughput for large scale computing systems |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108958813A (en) * | 2018-06-13 | 2018-12-07 | 北京无线电测量研究所 | file system construction method, device and storage medium |
| CN114584550A (en) * | 2021-03-30 | 2022-06-03 | 长城汽车股份有限公司 | Vehicle data uploading and storing method and device, storage medium and vehicle |
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Application publication date: 20180109 |
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