CN105390152A - Data storage processor based on SD card - Google Patents
Data storage processor based on SD card Download PDFInfo
- Publication number
- CN105390152A CN105390152A CN201510861759.3A CN201510861759A CN105390152A CN 105390152 A CN105390152 A CN 105390152A CN 201510861759 A CN201510861759 A CN 201510861759A CN 105390152 A CN105390152 A CN 105390152A
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- CN
- China
- Prior art keywords
- card
- chip microcomputer
- data storage
- processing device
- storage processing
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C7/00—Arrangements for writing information into, or reading information out from, a digital store
- G11C7/10—Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
- G11C7/1015—Read-write modes for single port memories, i.e. having either a random port or a serial port
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C2207/00—Indexing scheme relating to arrangements for writing information into, or reading information out from, a digital store
- G11C2207/10—Aspects relating to interfaces of memory device to external buses
Abstract
The present invention provides a data storage processor based on an SD card. The data storage processor comprises the SD card and is characterized by further comprising a single-chip microcomputer which performs synchronous serial data reading and writing with the SD card based on an SPI interface, wherein a clock pin CLK1, a chip selection pin CS, an input pin MOSI and an output pin MISO of the SD card are connected with the single-chip microcomputer. According to the data storage processor based on the SD card, a bottom-layer link is established between the single-chip microcomputer and the SD card based on the SPI interface, and then the single-chip microcomputer can perform a read/write operation of FATFS on the SD card by software, so that the purpose of conveniently and quickly reading the content of the SD card with the cooperation of a peripheral device is achieved, and interface and operation methods are simple and easy to implement; and a radio-frequency interface circuit is added, so that radio transmission communication between the SD card and a mobile terminal can be realized.
Description
Technical field
The invention belongs to electronic data storage process field, be specifically related to a kind of data storage processing device based on SD card.
Background technology
SD card is a kind of memory device of new generation of based semiconductor fast-flash memory device, have small and exquisitely to be easy to carry, the advantage such as memory capacity is large, dependable performance, be widely used in mancarried device stores data, such as mobile phone, digital camera, personal digital assistant (PDA) and multimedia player etc.Current SD card and the communication of external device often adopt SD pattern, and carry out interface in the actual use procedure of SD card communicated with SD pattern many, and method of operating is complicated; On the other hand, existing SD snaps past part and depends on wired one-way transmission, can not realize the transmission of file, to contact directly easily with mobile terminals such as mobile phones.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of data storage processing device based on SD card, reading and writing driving separately, read and write convenient and swift, wirelessly transmitting data can be carried out with mobile terminal.
For achieving the above object, technical scheme of the present invention is as follows: a kind of data storage processing device based on SD card, comprise SD card, it is characterized in that: it also comprises the single-chip microcomputer carrying out synchronous serial data read-write based on SPI interface and described SD card, the clock pins CLK1 of described SD card, sheet select pin CS, input pin MOSI, output pin MISO respectively with the connection of described single-chip microcomputer.
In a preferred embodiment of the present invention, the power pins VDD comprising described SD card further connects the power pins VSS of described single-chip microcomputer by 3.3V voltage stabilizer T.
In a preferred embodiment of the present invention, the power pins VSS comprising described single-chip microcomputer further also connects the LED light of a ground connection, the minus earth of LED light.
In a preferred embodiment of the present invention, comprise it further and also comprise wireless radio interface circuit, described Single-chip Controlling connects signal transmitting terminal Tx and the signal receiving end Rx of described wireless radio interface circuit.
In a preferred embodiment of the present invention, comprise it further and also comprise liquid crystal display, described Single-chip Controlling connects clock pins CLK2 and the data transmission pin Data of described liquid crystal display.
In a preferred embodiment of the present invention, comprise further in described single-chip microcomputer and there is SPI hardware system.
In a preferred embodiment of the present invention, the model comprising described single-chip microcomputer is further STM32f103.
The invention has the beneficial effects as follows: a kind of data storage processing device based on SD card of the present invention, bottom link is set up based on SPI interface by single-chip microcomputer and SD card, the read-write operation of FATFS aspect can be carried out on this basis to SD card by software simulating single-chip microcomputer, reaching under the cooperation of peripherals can the object of content in convenient and swift reading SD card, interface and method of operating simply, are easy to realize; Meanwhile, the wireless radio interface circuit of increase, can realize SD card and communicate with wireless transmission between mobile terminal.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the preferred embodiment of the present invention.
Wherein: 2-SD card, 4-single-chip microcomputer, 6-wireless radio interface circuit, 8-liquid crystal display.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment
As shown in Figure 1, a kind of data storage processing device based on SD card is disclosed in the present embodiment, comprise SD card 2, single-chip microcomputer 4, wireless radio interface circuit 6 and liquid crystal display 8, synchronous serial transport communication is carried out based on SPI interface between SD card 2 and single-chip microcomputer 4, concrete, the clock pins CLK1 of SD card, sheet selects pin CS, input pin MOSI, output pin MISO is connected with single-chip microcomputer 4 by SPI interface, the clock pins CLK1 of the direct control SD card of single-chip microcomputer 4, sheet selects pin CS, input pin MOSI, output pin MISO completes the SPI synchronous serial transmission of data, signal transmitting terminal Tx, the signal receiving end Rx of single-chip microcomputer 4 control linkage wireless radio interface circuit 6, single-chip microcomputer 4 goes back clock pins CLK2 and the data transmission pin Data of control linkage liquid crystal display.
The preferred model of single-chip microcomputer of the present invention is STM32f103, bottom link is set up based on SPI interface between single-chip microcomputer 4 and SD card 2 during work, the read-write operation of FATFS aspect can be carried out on this basis by software simulating single-chip microcomputer 4 pairs of SD cards 2, single-chip microcomputer 4 generates to the process that the data obtained by SPI interface carry out FATFS aspect the folder file being with catalogue, write is stored in SD card, such as, when data storage processing device of the present invention is used in the Medical Devices such as sausage filler, single-chip microcomputer 4 is to the temperature obtained, the process that the electronic data such as pressure carry out FATFS aspect generates respectively with temperature, the file of pressure name, generate in file and have .exe, .test file, electronic data is stored in respective file respectively, the file with filename generated writes online based on SPI interface and is stored in SD card 2, single-chip microcomputer 4 can read the interior electronic data stored with file form of SD card 2 based on SPI interface equally, completes synchronous serial transmission.
Meanwhile, single-chip microcomputer 4 controls liquid crystal display 8 and shows data message on SD card 2, and single-chip microcomputer 4 controls the work of wireless radio interface circuit 6, by the data message in SD card 2 based on radio-frequency transmitter to mobile terminal, or from mobile terminal receiving data information.
As a further improvement on the present invention, the power pins VDD of described SD card 2 connects the power pins VSS of described single-chip microcomputer 4 by 3.3V voltage stabilizer T, the 5V voltage transitions that single-chip microcomputer 4 power pins VSS exports becomes 3.3V voltage as the power supply driving SD card by 3.3V voltage stabilizer T.
As a further improvement on the present invention, the power pins VSS of described single-chip microcomputer 4 also connects the LED light D of a ground connection, the minus earth of LED light D.Show SD card when LED light D is bright normally to run.
As a further improvement on the present invention, in described single-chip microcomputer 4, there is SPI hardware system, improve the read-write speed to SD card with this.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (7)
1. the data storage processing device based on SD card, comprise SD card, it is characterized in that: it also comprises the single-chip microcomputer carrying out synchronous serial data read-write based on SPI interface and described SD card, the clock pins (CLK1) of described SD card, sheet select pin (CS), input pin (MOSI), output pin (MISO) respectively with the connection of described single-chip microcomputer.
2. a kind of data storage processing device based on SD card according to claim 1, is characterized in that: the power pins (VDD) of described SD card connects the power pins (VSS) of described single-chip microcomputer by 3.3V voltage stabilizer (T).
3. a kind of data storage processing device based on SD card according to claim 2, is characterized in that: the power pins (VSS) of described single-chip microcomputer also connects the LED light of a ground connection, the minus earth of LED light.
4. a kind of data storage processing device based on SD card according to claim 1, it is characterized in that: it also comprises wireless radio interface circuit, described Single-chip Controlling connects signal transmitting terminal (Tx) and the signal receiving end (Rx) of described wireless radio interface circuit.
5. a kind of data storage processing device based on SD card according to claim 1, it is characterized in that: it also comprises liquid crystal display, described Single-chip Controlling connects clock pins (CLK2) and data transmission pin (Data) of described liquid crystal display.
6. a kind of data storage processing device based on SD card according to any one of claim 1-5, is characterized in that: have SPI hardware system in described single-chip microcomputer.
7. a kind of data storage processing device based on SD card according to claim 6, is characterized in that: the model of described single-chip microcomputer is STM32f103.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861759.3A CN105390152A (en) | 2015-12-01 | 2015-12-01 | Data storage processor based on SD card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510861759.3A CN105390152A (en) | 2015-12-01 | 2015-12-01 | Data storage processor based on SD card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105390152A true CN105390152A (en) | 2016-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510861759.3A Pending CN105390152A (en) | 2015-12-01 | 2015-12-01 | Data storage processor based on SD card |
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| Country | Link |
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| CN (1) | CN105390152A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109150390A (en) * | 2018-06-05 | 2019-01-04 | 捷德（中国）信息科技有限公司 | A kind of embedded-type security element based on SPI communication interface |
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| US20050125584A1 (en) * | 2003-12-09 | 2005-06-09 | Yosi Pinto | Efficient connection between modules of removable electronic circuit cards |
| CN201234382Y (en) * | 2008-07-31 | 2009-05-06 | 华南理工大学 | SD card data reading transmission system based on FPGA and AVR |
| CN201897826U (en) * | 2010-08-24 | 2011-07-13 | 上海中科深江电动车辆有限公司 | Vehicle-mounted information recording instrument with Micro SD (secure digital) card memory interface |
| CN202602910U (en) * | 2012-04-13 | 2012-12-12 | 无锡中科龙泽信息科技有限公司 | Wireless SD-card type processing device |
| CN104394279A (en) * | 2014-12-08 | 2015-03-04 | 王家城 | Communication terminal and terminal interface equipment for SIM card wireless data transmission |
-
2015
- 2015-12-01 CN CN201510861759.3A patent/CN105390152A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050125584A1 (en) * | 2003-12-09 | 2005-06-09 | Yosi Pinto | Efficient connection between modules of removable electronic circuit cards |
| CN201234382Y (en) * | 2008-07-31 | 2009-05-06 | 华南理工大学 | SD card data reading transmission system based on FPGA and AVR |
| CN201897826U (en) * | 2010-08-24 | 2011-07-13 | 上海中科深江电动车辆有限公司 | Vehicle-mounted information recording instrument with Micro SD (secure digital) card memory interface |
| CN202602910U (en) * | 2012-04-13 | 2012-12-12 | 无锡中科龙泽信息科技有限公司 | Wireless SD-card type processing device |
| CN104394279A (en) * | 2014-12-08 | 2015-03-04 | 王家城 | Communication terminal and terminal interface equipment for SIM card wireless data transmission |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109150390A (en) * | 2018-06-05 | 2019-01-04 | 捷德（中国）信息科技有限公司 | A kind of embedded-type security element based on SPI communication interface |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160309 |