CN201181473Y - Electronic device for SD/IDE signal conversion - Google Patents
Electronic device for SD/IDE signal conversion Download PDFInfo
- Publication number
- CN201181473Y CN201181473Y CNU2008200916003U CN200820091600U CN201181473Y CN 201181473 Y CN201181473 Y CN 201181473Y CN U2008200916003 U CNU2008200916003 U CN U2008200916003U CN 200820091600 U CN200820091600 U CN 200820091600U CN 201181473 Y CN201181473 Y CN 201181473Y
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- ide
- bridge circuit
- interface
- memory card
- circuit
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- 238000006243 chemical reaction Methods 0.000 title claims description 16
- 238000012545 processing Methods 0.000 claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 description 36
- 238000013461 design Methods 0.000 description 7
- 238000011161 development Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 230000002596 correlated effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The utility model discloses an electronic device for switching SD/IDE signals, which comprises a circuit board, a memory, and a computer chip and an SD interface mounted on the circuit board, wherein the computer chip comprises a central processing unit, a north bridge circuit and a south bridge circuit; the north bridge circuit is electrically connected with the central processing unit, the south bridge circuit and the memory respectively; an SD/IDE switching circuit is further mounted on the circuit board and electrically connected with the north bridge circuit as well as the SD interface; and an SD memory card is inserted into the SD interface. Compared with the prior art, the electronic device enables two-way reading and writing of the SD/IDE, allows the operating system which is compatible with the IDE standard to manage the SD memory card and allows the SD memory card to be stimulated as a portable hard disk inserted into the electronic device, thereby leaving out the hard disk and the related parts and ensuring the lighter volume of the switching circuit.
Description
Technical field
The utility model relates to a kind of electric signal conversion equipment, especially a kind of SD/IDE signal conversion electronic device.
Background technology
Along with science and technology development with rapid changepl. never-ending changes and improvements, the high-tech electronic product category of living closely bound up with people emerges in an endless stream, for example: digital code camera (DVR), palmtop computer (PDA), mobile phone and digital camera etc., above-mentioned electronic product all need to store inside information by memory card.Modal in the market memory card types comprises CF (Compact Flash), SM (Smart Media), SD (Secure Digital), MMC (Multi Media Card) and MS (Memory Stick) etc., and the memory card of types such as CF, SD, MMC has almost become the employed standard storage device of many electronic products, wherein, therefore become the employed main flow storage device of many electronic products gradually because the volume of SD memory card is little, storage speed reaches low price soon.But present various memory card is for electronic product, all only as storage device for electronic product access data, electronic product itself also can't carry out subregion and disk management to the storage area in the memory card, has limited use and the expanded application of user to memory card.
In addition, with the PC that does not set the SD interface is example, when if user's desire is carried out data access by PC to the SD memory card, must additionally buy a SD memory card reader, otherwise the data in just can't access SD memory card therefore for the user, not only causes extra expenditure burden, using on SD memory card and the keeping SD memory card reader, also the user is caused great inconvenience.As shown in Figure 1, traditional PC 1 is mainly laid a primary memory 11 on a motherboard 10, one CPU (central processing unit) (CentralProcessing Unit, be called for short: CPU) 12, one Advenced Graphics Port (AcceleratedGraphics Port, be called for short: AGP) 13, assemblies such as one south bridge circuit (South Bridge), 14 and one north bridge circuit (North Bridge) 16, wherein CPU (central processing unit) 12 is in order to control each assembly, and program carried out computing, and be electrically connected with north bridge circuit 16, and north bridge circuit 16 respectively with south bridge circuit 14, primary memory 11 and Advenced Graphics Port 13 connect, required data in primary memory 11 temporary CPU (central processing unit) 12 calculating processes, the display data of Advenced Graphics Port 13 transmission video cards, and the data that primary memory 11 is kept in, data and the display data that quickens image processing, all being sent to CPU (central processing unit) 12 by north bridge circuit 16 handles, and south bridge circuit 14 is electrically connected with a plurality of output/input interfaces 15 and 17, and the IDE output/input interface 17 that passes through wherein connects a hard disk 18, and by operating system (the operating system of an IDE specification compatibility is installed, be called for short OS), the data that store in the reading writing harddisk 18, also can carry out subregion and disk management to the storage area in the hard disk 18, the data that this south bridge circuit 14 receives each output/input interface 15 are sent to CPU (central processing unit) 12 by north bridge circuit 16 and handle.According to the above as can be known, because all be equipped with hard disk 18 on the conventional personal computer, causing its volume can't further dwindle, and if desire uses the SD memory card to carry out data access, still must install a SD memory card reader additional, also the user be caused great inconvenience in the use.
On the other hand, because many electronic installations now, as digital video camera (DVR), RFID and bar code reading machine (RFID﹠amp; Bar code Reader), real-time vehicle positioning system (AVL), the identification of fingerprint machine, the dealer of network camera etc., according to ever-increasing design requirement and function on each electronic installation, on circuit board, constantly add new hardware, chip for driving or interface as difference in functionality, so as to increasing more function, but circuit board is not along with the various hardware development step of miniaturization day by day, and progressively dwindle its area, on the contrary because of constantly adding new hardware on the circuit board, make the size of circuit board can't dwindle all the time, also allow circuit board still need be installed in to have in the housing than the electronic installation of large space, and be difficult to make electronic device miniaturization.In addition, when new hardware is mounted to circuit board, the operating system or the driver that can activate this type of new hardware need be installed, cause the whole development cost of electronic installation high all the time, not only hindered board design dealer's exploitation wish, also had a strong impact on electronic device applications dealer's use wish because of cost is too high.
Can't miniaturization based on the size of aforementioned each electronic device circuit plate, and need redesign and develop the operating system of new hardware or the problem of driver, therefore, how to design a kind of circuit board that SD interface transmission signal can be converted to IDE specification signal, to replace the circuit board that size can't miniaturization, and make electronic installation can borrow the operating system of existing IDE specification compatibility, store data in the SD memory card of reading and writing on it to be pegged graft, and can carry out subregion and disk management to the storage area in the SD memory card, make the SD memory card can be modeled into the portable hard disk of being pegged graft on the electronic installation, and make electronic installation become a kind of machine hard disk, significantly to dwindle the size of circuit board, that omits hard disk is provided with space and cost, and can directly use the operating system of many existing IDE specification compatibilities, make that the volume of electronic installation is more compact, cost of development is more cheap, and application is more extensive, and these all become the design of each electronic installation and the important topic that manufacturer makes great efforts research and development and desires most ardently realization.
Summary of the invention
Problem to be solved in the utility model provides the SD/IDE signal conversion electronic device that a kind of volume is little, compatibility is good, extended capability is strong.
For addressing the above problem, the utility model has adopted following technical scheme: a kind of SD/IDE signal conversion electronic device, comprise circuit board, internal memory and be installed in computer chip and SD interface on the circuit board, described computer chip comprises CPU (central processing unit), north bridge circuit and south bridge circuit, this north bridge circuit is electrically connected with CPU (central processing unit), south bridge circuit and internal memory respectively, the SD/IDE change-over circuit also is installed on the described circuit board, and is electrically connected with north bridge circuit; Described SD/IDE change-over circuit and SD interface are electrically connected, SD interface grafting SD memory card; Described SD/IDE change-over circuit reads in the SD memory card by the SD interface and stores data, and converts the data that is read to IDE specification signal and be sent to north bridge circuit, after this north bridge circuit is handled, is resent to CPU (central processing unit) and uses; When the CPU (central processing unit) desire writes the SD memory card with data, the data of desiring to write are sent to north bridge circuit with the IDE specification, after the processing of north bridge circuit, be resent to the SD/IDE change-over circuit, convert data to SD specification signal by the SD/IDE change-over circuit, write in the SD memory card by the SD interface.
Circuit board described in the utility model is provided with housing outward, and the outside of this housing has the slot of at least one SD memory card, and this slot and SD interface are corresponding mutually and be electrically connected.
The outside of housing described in the utility model also comprises the connecting interface of at least one grafting computer peripheral equipment, and this connecting interface is installed on the circuit board, and is electrically connected with the north bridge circuit or the south bridge circuit of computer chip.
Connecting interface described in the utility model is the connecting interface of USB or LAN, and is electrically connected with the north bridge circuit of computer chip.
Connecting interface described in the utility model is the connecting interface of SPI, ISA or GPIO, and is electrically connected with the south bridge circuit of computer chip.
The utility model compared with prior art, can the two-way read-write of SD/IDE, and can use the operating system management SD memory card of IDE specification compatibility, and the SD memory card can be simulated become on the electronic installation portable hard disk of being pegged graft, make electronic installation because of having omitted hard disk and correlated parts, and have more frivolous volume.
Description of drawings
Fig. 1 is the structural representation of conventional personal computer in the utility model background technology.
Fig. 2 is the structural representation of the utility model SD memory card.
Fig. 3 is a principle of work process flow diagram of the present utility model.
Fig. 4 is the utility model structural representation.
The critical piece symbol description
| Electronic installation | ?2 | The SD interface | ?24 |
| Circuit board | ?20 | The SD slot | ?240 |
| Housing | ?21 | Computer chip | ?22 |
| CPU (central processing unit) | ?220 | The SD/IDE change-over circuit | ?26 |
| North bridge circuit | ?222 | Internal memory | ?28 |
| South bridge circuit | ?224 | The SD memory card | ?3 |
| Connecting interface | ?29 | Connection-peg | ?40 |
| Interfacing equipment | ?42 | Peripheral slot | ?290 |
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
As shown in Figure 2, be equipped with a flash memory 30, a Memory Controller Hub 32 and 9 branch connecting pins 34 in the SD memory card 3 described in the utility model, wherein Memory Controller Hub 32 is connected with flash memory 30 and 9 branch connecting pins 34 respectively, to receive read-write signal that pin 34 transmits and data to be written, and data write flash memory 30, or read data, and send out by pin 34 from flash memory 30.In addition, use the ide interface on PC or electronic installation at present, though different specifications is arranged because of design requirement is different, the pin number that causes the IDE connector that connects with ide interface is also different thereupon, with the IDE connector that 5 volts of power supplys are provided is example, generally be equipped with 40 branch connecting pins on this IDE connector, therefore, if desire to make electronic installation can directly use the operating system of commercially available IDE specification compatibility, the SD memory card 3 of pegging graft on the SD interface is carried out data reading-writing, reach the storage areas in the SD memory card 3 are carried out subregion and disk management, certainly will need between ide interface and SD interface, install the SD/IDE change-over circuit additional.According to the above as can be known, between ide interface and SD interface, because of the pin number is different can't compatible problem, need to use a kind of conversion equipment, SD interface transmission signal can be converted to IDE specification signal, or convert the ide interface transmission signal to SD specification signal, make and can carry out the conversion and the transmission of signal and data smoothly between ide interface and SD interface.
As shown in Figure 3, the utility model SD/IDE signal conversion electronic device 2 comprises circuit board 20, computer chip 22, SD interface 24, SD/IDE change-over circuit 26 and internal memory 28, wherein computer chip 22, SD interface 24, SD/IDE change-over circuit 26 and internal memory 28 are installed on the circuit board 22, computer chip 22 comprises CPU (central processing unit) 220, north bridge circuit 222 and south bridge circuit 224, CPU (central processing unit) 220 is electrically connected with north bridge circuit 222, north bridge circuit 222 respectively with SD/IDE change-over circuit 26, south bridge circuit 224 and internal memory 28 are electrically connected, 26 of SD/IDE change-over circuits and SD interface 24 are electrically connected, SD interface 24 is in order to grafting SD memory card 3, make SD/IDE change-over circuit 26 to read the data that stores in the SD memory card 3 by SD interface 24, or data write in the SD memory card 3, so, when CPU (central processing unit) 220 desires to read the data that stores in the SD memory card 3, to transmit a reading signal to SD/IDE change-over circuit 26, make SD/IDE change-over circuit 26 by SD interface 24, read the data that stores in the SD memory card 3, and with the data that is read, convert IDE specification signal to and be sent to north bridge circuit 222, after north bridge circuit 222 is handled, be resent to CPU (central processing unit) 220, use for CPU (central processing unit) 220; When CPU (central processing unit) 220 desires write SD memory card 3 with data, then be sent to north bridge circuit 222 with the IDE specification, after north bridge circuit 222 is handled, be resent to SD/IDE change-over circuit 26, convert SD specification signal by SD/IDE change-over circuit 26 to desiring the data that writes, write in the SD memory card 3 by SD interface 24 again, so, can borrow the operating system that commercially available a kind of and IDE specification compatibility is installed on the electronic installation 2, the running of each assembly on the control electronic installation 2, and the SD memory card 3 of being pegged graft on the SD interface 24 is carried out the read-write of data, reach the storage areas in the SD memory card 3 are carried out subregion and disk management, make SD memory card 3 can be modeled into the portable hard disk of being pegged graft on the electronic installation 2, and make electronic installation 2 become a kind of machine hard disk, because SD interface 24 and SD memory card 3 only need take in the electronic installation 2 a minimum space, so can not only make electronic installation 2 possess the basic function of standard personal computer, and make electronic installation 2 because of having omitted hard disk and correlated parts, and have more compact volume.
In one of the utility model most preferred embodiment, shown in 4 figure, SD/IDE signal conversion electronic device 2 still comprises housing 21, one of housing 21 side has the slot 240 of at least one SD memory card, this slot 240 is corresponding mutually with SD interface 24, make SD memory card 3 can insert slot 240, and be electrically connected with SD interface 24, so, when SD memory card 3 is inserted into electronic installation 2, the user can use the operating system of the IDE specification compatibility of being installed on the electronic installation 2 to control the running of each assembly on the electronic installation 2, and can need not additional designs or develop under the situation of new operating system or driver, directly pass through the SD/IDE change-over circuit 26 of electronic installation 2 inside, the SD memory card 3 of being pegged graft on the SD interface 24 is carried out the read-write of data, and the storage areas in the SD memory card 3 are carried out subregion and disk management, make SD memory card 3 can be modeled into the portable hard disk of being pegged graft on the electronic installation 2, and make electronic installation 2 become a kind of machine hard disk, so, not only effectively promoted the convenience that uses, also significantly reduce the design and the cost of development of new operating system or driver, and then increased this type of electronic device applications dealer's use wish.
In the above-described embodiments, as 3 figure and shown in Figure 4, SD/IDE signal conversion electronic device 2 still comprises at least one computer peripheral equipment connecting interface 29, as: USB, LAN, SPI, ISA or GPIO etc., this connecting interface 29 is installed on the circuit board 20, wherein the connecting interface 29 of USB or LAN is electrically connected with the north bridge circuit 222 of computer chip 22, SPI, the connecting interface 29 of ISA or GPIO is electrically connected with the south bridge circuit 224 of computer chip 22, electronic installation 2 housings 21 1 sides offer the peripheral slot 290 of at least one interfacing equipment in addition, peripheral slot 290 is corresponding with connecting interface 29, so just can be according to the actual requirements, with electronic installation 2 as RFID and bar code reading machine (RFID﹠amp; Bar code Reader), when real-time vehicle positioning system (AVL) or identification of fingerprint machine etc. are used, in the SD memory card 3 that only related application need be mounted to the internal memory 28 of electronic installation 2 or be pegged graft on it, again with an interfacing equipment 42 (as RFID and bar code sensor, gps antenna or fingerprint scanner) connection-peg 40 insert peripheral slots 290, thereby be electrically connected with connecting interface 29, so, when this interfacing equipment 42 is inserted into electronic installation 2, the operating system of the IDE specification compatibility that this electronic installation 2 can use on it to be installed, the running of each assembly makes this electronic installation 2 become required RFID and bar code reading machine (RFID﹠amp on the control electronic installation 2; Barcode Reader), real-time vehicle positioning system (AVL) or identification of fingerprint machine, and the measurement data of utilizing these connecting interface 29 fetch interface equipment 42 to obtain, after north bridge circuit 222 or south bridge circuit 224 processing, be resent to CPU (central processing unit) 220, use for CPU (central processing unit) 220.After CPU (central processing unit) 220 is finished computing, data are sent to north bridge circuit 222, after north bridge circuit 222 is handled, are resent to SD/IDE change-over circuit 26, by SD/IDE change-over circuit 26 data-switching is become SD specification signal, write in the SD memory card 3 by SD interface 24 again and stored.So, not only significantly promoted the convenience that the dealer uses this type of electronic installation, and make this electronic installation can use the operating system of multiple commercially available IDE specification compatibility, need not to set under the situation of hard disk, can realize reduced volume easily, reduce cost and the purpose in expandable applications field.
Claims (5)
1, a kind of SD/IDE signal conversion electronic device, comprise circuit board, internal memory and be installed in computer chip and SD interface on the circuit board, described computer chip comprises CPU (central processing unit), north bridge circuit and south bridge circuit, this north bridge circuit is electrically connected with CPU (central processing unit), south bridge circuit and internal memory respectively, it is characterized in that: the SD/IDE change-over circuit also is installed on the described circuit board, and is electrically connected with north bridge circuit; Described SD/IDE change-over circuit and SD interface are electrically connected, SD interface grafting SD memory card; Described SD/IDE change-over circuit reads in the SD memory card by the SD interface and stores data, and converts the data that is read to IDE specification signal and be sent to north bridge circuit, after this north bridge circuit is handled, is resent to CPU (central processing unit) and uses; When the CPU (central processing unit) desire writes the SD memory card with data, the data of desiring to write are sent to north bridge circuit with the IDE specification, after the processing of north bridge circuit, be resent to the SD/IDE change-over circuit, convert data to SD specification signal by the SD/IDE change-over circuit, write in the SD memory card by the SD interface.
2, SD/IDE signal conversion electronic device according to claim 1, it is characterized in that: described circuit board is provided with housing outward, and the outside of this housing has the slot of at least one SD memory card, and this slot and SD interface are corresponding mutually and be electrically connected.
3, SD/IDE signal conversion electronic device according to claim 2, it is characterized in that: the outside of described housing also comprises the connecting interface of at least one grafting computer peripheral equipment, this connecting interface is installed on the circuit board, and is electrically connected with the north bridge circuit or the south bridge circuit of computer chip.
4, SD/IDE signal conversion electronic device according to claim 3, it is characterized in that: described connecting interface is the connecting interface of USB or LAN, and is electrically connected with the north bridge circuit of computer chip.
5, SD/IDE signal conversion electronic device according to claim 3, it is characterized in that: described connecting interface is the connecting interface of SPI, ISA or GPIO, and is electrically connected with the south bridge circuit of computer chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200916003U CN201181473Y (en) | 2008-01-15 | 2008-01-15 | Electronic device for SD/IDE signal conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200916003U CN201181473Y (en) | 2008-01-15 | 2008-01-15 | Electronic device for SD/IDE signal conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181473Y true CN201181473Y (en) | 2009-01-14 |
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ID=40250971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200916003U Expired - Fee Related CN201181473Y (en) | 2008-01-15 | 2008-01-15 | Electronic device for SD/IDE signal conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181473Y (en) |
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2008
- 2008-01-15 CN CNU2008200916003U patent/CN201181473Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20130115 |