CN105893309A - Usb flash disk data exchanger - Google Patents
Usb flash disk data exchanger Download PDFInfo
- Publication number
- CN105893309A CN105893309A CN201610199476.1A CN201610199476A CN105893309A CN 105893309 A CN105893309 A CN 105893309A CN 201610199476 A CN201610199476 A CN 201610199476A CN 105893309 A CN105893309 A CN 105893309A
- Authority
- CN
- China
- Prior art keywords
- usb flash
- flash disk
- controller
- scheme
- bus
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
- G06F13/4004—Coupling between buses
- G06F13/4022—Coupling between buses using switching circuits, e.g. switching matrix, connection or expansion network
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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
- G06F13/14—Handling requests for interconnection or transfer
- G06F13/20—Handling requests for interconnection or transfer for access to input/output bus
- G06F13/28—Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access DMA, cycle steal
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2213/00—Indexing scheme relating to interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
- G06F2213/0042—Universal serial bus [USB]
Abstract
The invention provides a USB flash disk data exchanger and a method for completing USB flash disk data exchange with an embedded device. The USB flash disk data exchanger is composed of USB flash disk interfaces, USB flash disk interface circuits, a bus and controllers. Each USB flash disk is provided with one USB flash disk interface, and the USB flash disk interfaces are provided with the corresponding interface circuits. According to the first scheme, all the interface circuits are connected together through one bus, and the bus is controlled through one controller; according to the second scheme, all the interface circuits are directly connected with one controller, and data transmission is conducted according to a DMA channel or an internal bus in the controller; according to the third scheme, each interface circuit is connected with one independent controller, and all the independent controllers are connected with the bus and are overall arranged by a master controller. After the three schemes are selected according to the situation, transmitting and reading of USB flash disk data are completed with the embedded device, and thus it comes true that data transmission of a USB flash disk is conducted without a computer; besides, according to the schemes, material consumption is low, and the device is simple and practical.
Description
Technical field
The invention belongs to a kind of embedded device, especially belong to a kind of embedded device for the exchange of USB flash disk data.
Background technology
The invention of USB flash disk changes the life of people, the instrument that USB flash disk transmits as a kind of temporary file, deposits, obtain the extensive application of all trades and professions, people carry out the exchange of file with USB flash disk, completing importing and exporting of data on shared device, USB flash disk has changed into a part for people's life, the support hot plug technology that USB flash disk has, the technical characterstic of a large amount of quick storage so that it is establish the dominance of temporary file carrier.In use, we carry out file by computer with USB flash disk and exchange, sometimes we by the file in a USB flash disk by computer transmission in another USB flash disk, the occasion of file transmission is carried out between some a large amount of USB flash disks, use and more bother, and between USB flash disk, cannot directly carry out file transmission, the most still rely on PC to carry out the transmission of file, greatly consume the time, waste a large amount of manpower.
Summary of the invention
USB flash disk data exchange unit proposes and completes USB flash disk data with embedded device and exchange this method, and USB flash disk data exchange unit is made up of USB flash disk interface, USB flash disk interface circuit, bus, controller.In order to realize that the data of a USB flash disk are transferred to another USB flash disk or other multiple USB flash disk, we can use following several scheme.Scheme one, each USB flash disk has a USB flash disk interface, and USB flash disk interface has corresponding interface circuit, and all of interface circuit is connected together by a bus, is controlled bus by a controller；Scheme two, each USB flash disk has a USB flash disk interface, and USB flash disk interface has corresponding interface circuit, all of interface circuit to be directly connected with controller, is carried out data transmission by the DMA channel within controller or internal bus；Scheme three, each USB flash disk has a USB flash disk interface, and USB flash disk interface has corresponding interface circuit, all of interface circuit all to connect an independent controller, and each independent controller is connected with bus, and independent controller is by the overall arrangement of master controller.The feature of scheme one is that project plan comparison is simple, can connect multiple equipment, it is easy to expanding, data transmission ratio is relatively reliable.Comparing scheme two and scheme three, the shortcoming of scheme one is on same Time BUS to have a transmission equipment, i.e. can be only done and the data of a USB flash disk are transferred to other USB flash disk.While the feature of scheme two has been the file of a USB flash disk is transferred to other USB flash disk, some of them USB flash disk can also be operated by controller, such as, read the file of one of them USB flash disk, i.e. can complete some tasks parallel, can be two-by-two between USB flash disk, tasks synchronization between USB flash disk controller is carried out, relative plan one and scheme three, scheme two requires higher for controller, the feature of scheme three is, while reaching the technical advantage of scheme two, reduce the requirement to controller, relative plan one and scheme two, the requirement that system task is planned by scheme three is finer, more complicated, but system capability is more powerful.
According to circumstances, after selecting above-mentioned three kinds of schemes, it is achieved complete the transmission to USB flash disk data, reading with embedded device so that USB flash disk departs from computer to carry out data transmission becoming a reality, and such scheme consumptive material is few, and equipment is simple, practical.
Accompanying drawing explanation
Fig. 1 is the scheme one running schematic diagram of USB flash disk data exchange unit.
Fig. 2 is the scheme two running schematic diagram of USB flash disk data exchange unit.
Fig. 3 is the scheme three running schematic diagram of USB flash disk data exchange unit.
Detailed description of the invention
Below by example and accompanying drawing thereof, the present invention is described in further details；
See Fig. 1, be the scheme one running schematic diagram of USB flash disk data exchange unit.Each USB flash disk has a USB flash disk interface, and USB flash disk interface has corresponding interface circuit, and all of interface circuit is connected together by a bus, is controlled bus by a controller.The feature of scheme one is that project plan comparison is simple, can connect multiple equipment, it is easy to expanding, data transmission ratio is relatively reliable.Comparing scheme two and scheme three, the shortcoming of scheme one is on same Time BUS to have a transmission equipment, i.e. can be only done and the data of a USB flash disk are transferred to other USB flash disk.
See Fig. 2, be the scheme two running schematic diagram of USB flash disk data exchange unit.Each USB flash disk has a USB flash disk interface, and USB flash disk interface has corresponding interface circuit, all of interface circuit to be directly connected with controller, is carried out data transmission by the DMA channel within controller or internal bus.While the feature of scheme two has been the file of a USB flash disk is transferred to other USB flash disk, some of them USB flash disk can also be operated by controller, such as, read the file of one of them USB flash disk, i.e. can complete some tasks parallel, can tasks synchronization between USB flash disk, between USB flash disk controller carry out two-by-two, relative plan one and scheme three, scheme two requires higher for controller.
See Fig. 3, be the scheme three running schematic diagram of USB flash disk data exchange unit.Each USB flash disk has a USB flash disk interface, and USB flash disk interface has corresponding interface circuit, all of interface circuit all to connect an independent controller, and each independent controller is connected with bus, and independent controller is by the overall arrangement of master controller.The feature of scheme three is, while reaching the technical advantage of scheme two, reduces the requirement to controller, relative plan one and scheme two, and the requirement that system task is planned by scheme three is more fine, more complicated, but system capability is more powerful.
The above is only the representative embodiment of the present invention; should be understood that; for field, place of the present invention those of ordinary skill under the premise without departing from the principles of the invention; a lot of remodeling can also be made; such as; changing data transfer mode etc., these should also be as belonging to protection scope of the present invention.
Claims (4)
1.U dish data exchange unit, it is characterised in that: propose and complete USB flash disk data with embedded device and exchange this method.
2. USB flash disk data exchange unit as claimed in claim 1, it is characterized in that: a kind of scheme completing the exchange of USB flash disk data is that each USB flash disk has a USB flash disk interface, USB flash disk interface has corresponding interface circuit, all of interface circuit is connected together by a bus, is controlled bus by a controller.
3. USB flash disk data exchange unit as claimed in claim 1, it is characterized in that: a kind of scheme completing the exchange of USB flash disk data is that each USB flash disk has a USB flash disk interface, USB flash disk interface has corresponding interface circuit, all of interface circuit is directly connected with controller, is carried out data transmission by the DMA channel within controller or internal bus.
4. USB flash disk data exchange unit as claimed in claim 1, it is characterized in that: a kind of scheme completing the exchange of USB flash disk data is that each USB flash disk has a USB flash disk interface, USB flash disk interface has corresponding interface circuit, all of interface circuit all connects an independent controller, each independent controller is connected with bus, and independent controller is by the overall arrangement of master controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199476.1A CN105893309A (en) | 2016-04-03 | 2016-04-03 | Usb flash disk data exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610199476.1A CN105893309A (en) | 2016-04-03 | 2016-04-03 | Usb flash disk data exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105893309A true CN105893309A (en) | 2016-08-24 |
Family
ID=57012150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610199476.1A Pending CN105893309A (en) | 2016-04-03 | 2016-04-03 | Usb flash disk data exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105893309A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050165998A1 (en) * | 2002-02-13 | 2005-07-28 | Quantum Corporation | Use of the universal serial bus as an internal architecture within IDE disk array |
| CN101533377A (en) * | 2008-03-14 | 2009-09-16 | 浪潮乐金数字移动通信有限公司 | Universal USB peer data transmission line and transmission method |
| CN203535961U (en) * | 2013-10-11 | 2014-04-09 | 上海工程技术大学 | USB data transmission device based on bluetooth technique |
| CN203849997U (en) * | 2014-01-28 | 2014-09-24 | 兰州商学院 | Portable multi-interface data transmitter |
| CN203982797U (en) * | 2014-07-16 | 2014-12-03 | 李博扬 | A kind of Portable U disk transmitter |
| CN204010685U (en) * | 2014-08-01 | 2014-12-10 | 兰州商学院 | A kind of multi-interface data transmitter of PC |
-
2016
- 2016-04-03 CN CN201610199476.1A patent/CN105893309A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050165998A1 (en) * | 2002-02-13 | 2005-07-28 | Quantum Corporation | Use of the universal serial bus as an internal architecture within IDE disk array |
| CN101533377A (en) * | 2008-03-14 | 2009-09-16 | 浪潮乐金数字移动通信有限公司 | Universal USB peer data transmission line and transmission method |
| CN203535961U (en) * | 2013-10-11 | 2014-04-09 | 上海工程技术大学 | USB data transmission device based on bluetooth technique |
| CN203849997U (en) * | 2014-01-28 | 2014-09-24 | 兰州商学院 | Portable multi-interface data transmitter |
| CN203982797U (en) * | 2014-07-16 | 2014-12-03 | 李博扬 | A kind of Portable U disk transmitter |
| CN204010685U (en) * | 2014-08-01 | 2014-12-10 | 兰州商学院 | A kind of multi-interface data transmitter of PC |
Non-Patent Citations (1)
| Title |
|---|
| JEKYCHAN: ""U盘数据交换器的设计 毕业设计"", 《百度文库：HTTPS://WENKU.BAIDU.COM/VIEW/3A511405CC175527072208AB.HTML》 * |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |