CN107807892B - Method for converting USB TYPE-C into USB3.0 and adapter - Google Patents
Method for converting USB TYPE-C into USB3.0 and adapter Download PDFInfo
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- CN107807892B CN107807892B CN201711135811.2A CN201711135811A CN107807892B CN 107807892 B CN107807892 B CN 107807892B CN 201711135811 A CN201711135811 A CN 201711135811A CN 107807892 B CN107807892 B CN 107807892B
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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
- G06F13/38—Information transfer, e.g. on bus
- G06F13/382—Information transfer, e.g. on bus using universal interface adapter
- G06F13/385—Information transfer, e.g. on bus using universal interface adapter for adaptation of a particular data processing system to different peripheral devices
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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]
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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
- G06F2213/38—Universal adapter
- G06F2213/3852—Converter between protocols
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- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The invention discloses an adapter and a method for converting USB TYPE-C into USB3.0, wherein the method comprises the following steps: the signal detection according to a CC pin of TYPE-C interface the grafting direction of the outside TYPE-C interface that TYPE-C interface is connected to and according to detecting the grafting direction of outside TYPE-C interface makes the data pin of USB3.0 interface correspond the intercommunication with the data pin of the first pin group and the second pin group of TYPE-C interface selectively. The invention can automatically identify the plugging direction of the external TYPE-C interface, simultaneously play the high-speed performance of the TYPE-C interface and convert the TYPE-C interface into the USB3.0 interface.
Description
Technical Field
The invention relates to the field of electronic circuits, in particular to a method for converting TYPE-C into USB3.0 and an adapter.
Background
With the continuous progress of science and technology, USB communication is widely and mature in various electronic devices, and the requirement of people for communication speed is continuously increased, and the USB communication protocol is also continuously upgraded, which shows that the communication interfaces are also different in form. Nowadays, consumer electronics increasingly emphasize user experience and the capacity of multimedia files is increasing, and the TYPE-C interface supporting a forward and reverse plug-in communication mode is becoming the first choice of more and more manufacturers. However, USB2.0 and USB3.0 devices have a large number of parts in the market. At present, an adapter for converting TYPE-C to USB2.0 is available in the market, but the transmission speed of a USB2.0 interface is low, so that the requirement of a user on high-speed communication cannot be met.
Disclosure of Invention
One aspect of the present invention provides an adapter for converting USB TYPE-C to USB3.0, including:
the TYPE-C interface comprises a first pin group and a second pin group which are arranged side by side, wherein pins of the first pin group and pins of the second pin group are the same and are arranged in a reverse direction, and the first pin group and the second pin group both comprise a power supply pin, a grounding pin, a CC pin and a data pin;
the USB3.0 interface comprises a third pin group, wherein the third pin group comprises a power pin, a grounding pin and a data pin;
the detection circuit is configured to detect the plugging direction of an external TYPE-C interface connected with the TYPE-C interface according to signals of CC pins of the first pin group or the second pin group; and
and the switching circuit is configured to enable the data pin of the third pin group of the USB3.0 interface to be correspondingly communicated with the data pin of the first pin group when the external TYPE-C interface is in forward plugging, and enable the data pin of the third pin group of the USB3.0 interface to be correspondingly communicated with the data pin of the second pin group when the external TYPE-C interface is in reverse plugging.
Preferably, the detection circuit includes a switch transistor, the CC pin of the first pin group or the second pin group is connected to the control end of the switch transistor, and the output end of the switch transistor outputs the direction detection signal.
Preferably, the detection circuit includes an NPN type triode, a base of the NPN type triode is connected to the CC pin of the first pin group or the second pin group, a collector is connected to a power supply through a pull-up resistor and outputs a direction detection signal, and an emitter is grounded.
Preferably, the switching circuit includes a TYPE-C signal conversion chip, including a fourth pin group, a fifth pin group and a sixth pin group, the fourth pin group is connected to the high-speed data pin of the first pin group, the fifth pin group is connected to the high-speed data pin of the second pin group, the sixth pin group is connected to the high-speed data pin of USB3.0, the TYPE-C signal is configured to work as when the external TYPE-C interface is the forward grafting the sixth pin group with the fourth pin group forms the communication path, works as when the external TYPE-C interface is the reverse grafting the sixth pin group with the fifth pin group forms the communication path.
Preferably, the detection circuit outputs a direction detection signal, and the TYPE-C signal conversion chip is connected with the direction detection signal.
Preferably, the voltage conversion circuit is configured to convert a voltage connected to a power pin of the TYPE-C interface into a lower voltage and provide the lower voltage to the detection circuit and/or the switching circuit.
Preferably, the TYPE-C interface is a male plug, and the USB3.0 interface is a female plug.
The invention also provides a method for converting USB TYPE-C into USB3.0, which comprises the following steps:
detecting the plugging direction of an external TYPE-C interface connected with the TYPE-C interface according to a signal of a CC pin of the TYPE-C interface, wherein the TYPE-C interface comprises a first pin group and a second pin group which are arranged side by side, the pins of the first pin group and the pins of the second pin group are the same and are arranged in a reverse direction, and the pins of the first pin group and the pins of the second pin group comprise a power supply pin, a grounding pin, a data pin and the CC pin; and
and selectively and correspondingly communicating the data pins of the USB3.0 interface with the data pins of the first pin group and the second pin group according to the detected plugging direction of the external TYPE-C interface.
Preferably, the CC pin signal according to TYPE-C interface detects the grafting direction of the external TYPE-C interface that TYPE-C interface connects specifically is: and detecting the plugging direction of the connected external TYPE-C interface according to the level of the CC pin signal of the TYPE-C interface.
Preferably, according to the detected plugging direction of the external TYPE-C interface, selectively and correspondingly communicating the data pins of the USB3.0 interface with the data pins of the first pin group and the second pin group includes:
connecting fourth to sixth pin groups of a TYPE-C signal conversion chip with the high-speed data pin of the first pin group, the high-speed data pin of the second pin group and the high-speed data pin of USB3.0 respectively; and
make when external TYPE-C interface is the forward grafting sixth pin group with fourth pin group forms the communication route, make when external TYPE-C interface is reverse grafting sixth pin group with fifth pin group forms the communication route.
According to the embodiment of the invention, the plugging direction of the external TYPE-C interface can be automatically identified, the high-speed performance of the TYPE-C interface is exerted, the TYPE-C interface is converted into the USB3.0 interface with the speed far higher than the USB2.0, the problem that the transmission speed is insufficient in the mainstream mode of converting TYPE-C into USB2.0 in the current market, and the TYPE-C interface can not be butted with the USB3.0 high-speed interface is solved, so that the electronic equipment adopting the TYPE-C interface in the market can communicate with the electronic equipment using the USB3.0, the operation speed is high, and the use is convenient.
Drawings
Fig. 1 is a circuit block diagram of an adapter for converting USB TYPE-C to USB3.0 according to an embodiment of the present invention;
FIG. 2 is a pin definition diagram of the TYPE-C interface of the adapter of FIG. 1;
FIG. 3 is a schematic circuit diagram of the TYPE-C interface of the adapter of FIG. 1;
FIG. 4 is a pin definition diagram of the USB3.0 interface of the adapter of FIG. 1;
FIG. 5 is a circuit schematic of the USB3.0 interface of the adapter of FIG. 1;
FIG. 6 is a schematic circuit diagram of the detection circuit of the rotary joint of FIG. 1;
FIG. 7 is a circuit schematic of the switching circuit of the transition joint of FIG. 1;
FIG. 8 is a flowchart illustrating a method for converting TPYE-C to USB3.0 according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In some of the flows described in the present specification and claims and in the above-described figures, a number of operations are included that occur in a particular order, but it should be clearly understood that these operations may be performed out of order or in parallel as they occur herein, with the order of the operations being numbered, e.g., S1, S2, etc., merely to distinguish between various operations, and the order of the operations by themselves is not meant to imply any order of execution. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an adapter 10 for converting USB TYPE-C to USB3.0 according to an embodiment of the present invention includes a TYPE-C interface 12, a USB3.0 interface 14, a detection circuit 16, and a switching circuit 18.
The TYPE-C interface 12 includes a first pin group and a second pin group that are arranged side by side, the pins of the first pin group and the pins of the second pin group are the same and are arranged in reverse, and both include a power supply pin, a ground pin, a CC pin, and a data pin. The USB TPYE-C interface is an industry standard interface, and specifically, as shown in fig. 2, is defined as 24 pins, and is arranged in two rows in parallel and in reverse, where each row is a pin group, and each pin group includes 2 power supply pins VBUS, 2 ground pins GND, 1 CC pin, 1 auxiliary signal pin SBU, and 6 data pins SBU, D +, D-, RX +, RX-, TX +, and TX-; d + and D-in the 6 data pins are used for compatible differential data signals of the USB2.0 interface, and RX +, RX-, TX + and TX-are used for connecting high-speed data signals. Fig. 3 shows a schematic circuit diagram of the TYPE-C interface, in which the pin CC1 and the pin CC2 can be grounded via pull-down resistors, respectively.
The USB3.0 interface 14 includes a set of pins (also referred to as a third pin set) including a power pin, a ground pin, and a data pin. The USB3.0 interface is also an industry standard interface, and in particular, as shown in fig. 4, is defined to have 9 pins, 1 power pin VBUS, 2 ground pins GND, and 6 data pins, respectively. D + and D-in the 6 data pins are used for differential data signals compatible with the USB2.0 interface, and RX +, RX-, TX + and TX-are respectively used for connecting high-speed differential data signals. Fig. 5 shows a circuit schematic of the USB3.0 interface 14.
The detection circuit 16 is configured to detect a plugging direction of an external TYPE-C interface to which the TYPE-C interface 12 is connected, according to a signal of a CC pin of a first pin group or a second pin group of the TYPE-C interface 12. Preferably, the detection circuit 16 may include a switching transistor, the CC pin of the TYPE-C interface 12 is connected to the control terminal of the switching transistor, and the output terminal of the switching transistor outputs a direction detection signal. Fig. 6 shows an implementation manner of the detection circuit 16, in which the detection circuit 16 includes an NPN transistor Q, a base of the NPN transistor Q is connected to the CC1 pin of the first pin group, a collector is connected to a power supply (in this example, 3.3V dc) via a pull-up resistor, an emitter is grounded, and a direction detection signal CC _ SEL is output from a collector. It will be appreciated that the detection circuit 16 may be implemented by other suitable circuits. In this example, the detection circuit 16 outputs the direction detection signal by detecting the pin CC1 of the first pin group, but it is understood that the detection circuit may output the direction detection signal by detecting the pin CC2 of the second pin group.
The switching circuit 18 is configured to make the data pins of the pin group of the USB3.0 interface 14 and the data pins of the first pin group correspondingly communicate when the external TYPE-C interface is forward-plugged, and to make the data pins of the pin group of the USB3.0 interface 14 and the data pins of the second pin group correspondingly communicate when the external TYPE-C interface is backward-plugged.
In this embodiment, the switching circuit 18 may include a TYPE-C signal conversion chip, and the chip is used to complete the selection and switching of the communication lines of the high-speed data pins RX +, RX-, TX +, and TX-, thereby reducing the number of components and reducing the size of the circuit board. Fig. 7 shows an implementation of the switching circuit 18, in which a TYPE-C signal conversion chip of model EJ179S is used, whose D _ SET pin is connected to the direction detection signal CC _ SEL, three groups of pins (referred to as fourth to sixth pin groups, respectively) of the chip are connected to the TYPE-C interface 12 and three groups of high-speed data pins of the USB3.0 interface 14, where the fourth pin group is connected to the high-speed data pins SSTX1+, SSTX1-, SSRX2+ and SSRX2 of the first pin group, the fifth pin group is connected to the high-speed data pins SSTX2, SSTX2-, SSRX1+, SSRX2 of the second pin group, the sixth pin group is connected to the high-speed data pins UP of the USB3.0 interface SSTXM _ C _ UP, SSTXP _ C _ UP, SSRXM _ C _ UP and SSRXP _ C _ UP, and the TYPE-C _ UP is configured to plug the TYPE-C signal conversion chip into a forward communication path when the direction detection signal CC _ CC indicates that the sixth pin group is an external TYPE-C _ SEL, therefore, the high-speed data pin of the USB3.0 interface 14 is correspondingly communicated with the high-speed data pin of the first pin group of the TYPE-C interface 12, and when the direction detection signal CC _ SEL indicates that the external TYPE-C interface is reversely inserted, the sixth pin group and the fifth pin group form a communication channel, so that the high-speed data pin of the USB3.0 interface 14 is correspondingly communicated with the high-speed data pin of the second pin group of the TYPE-C interface 12.
D + and D-in the first pin group and the second pin group of the TYPE-C interface are respectively defined at the A6A7 pin and the B6B7 pin, the structures of the two are symmetrical, the two are directly connected with the D + and the D-of the USB3.0 interface, and the compatibility of the USB2.0 interface can be realized.
Preferably, the head 10 further includes a voltage conversion circuit 20 connected between the TYPE-C interface 12 and the detection circuit 16 and the switching circuit 18. The voltage of the power pin VBUS of the TYPE-C interface 12 is usually connected to 5V or more than 5V, and the voltage conversion circuit 20 can convert the voltage connected to the power pin of the TYPE-C interface 12 into a lower 3.3 voltage and provide the lower 3.3 voltage to the detection circuit 16 and the switching circuit 18. Preferably, the voltage conversion circuit 20 can be implemented by any suitable voltage conversion chip available in the market.
In this embodiment, preferably, the TYPE-C interface 12 of the adaptor is a male plug, and the USB3.0 interface 14 is a female plug, but it should be understood that the invention is not limited thereto.
Referring to fig. 8, the present invention further provides a method for converting USB TYPE-C to USB3.0, including:
s1, signal detection according to the CC pin of TYPE-C interface the grafting direction of the outside TYPE-C interface that TYPE-C interface is connected, the TYPE-C interface includes side by side and the first pin group and the second pin group of establishing, the pin of first pin group and the pin of second pin group are the same and reverse setting, and both all include power pin, ground connection pin, data pin and CC pin. Preferably, the plugging direction of the connected external TYPE-C interface can be detected according to the level of the CC pin signal of the TYPE-C interface.
S2, according to the detected plugging direction of the external TYPE-C interface, the data pins of the USB3.0 interface are selectively and correspondingly communicated with the data pins of the first pin group and the second pin group.
Preferably, the fourth to sixth pin groups of a TYPE-C signal conversion chip are respectively connected to the high-speed data pin of the first pin group, the high-speed data pin of the second pin group and the high-speed data pin of USB3.0 of the TYPE-C interface; and the external TYPE-C interface makes when pegging graft for the forward sixth pin group with fourth pin group forms communication channel, make when the external TYPE-C interface is reverse grafting sixth pin group with fifth pin group forms communication channel.
According to the embodiment of the invention, the plug-in direction of the external TYPE-C interface can be automatically identified by utilizing the CC pin of the TYPE-C interface, the high-speed performance of the TYPE-C interface is exerted, the TYPE-C interface is converted into the USB3.0 interface with the speed far higher than the USB2.0, the problem that the transmission speed is insufficient in the mainstream mode of converting TYPE-C to USB2.0 in the current market and the TYPE-C interface can not be in butt joint with the USB3.0 high-speed interface is solved, so that the electronic equipment adopting the TYPE-C interface in the market can be communicated with the electronic equipment using the USB3.0, the operation speed is high, and the use is convenient.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. An adapter for converting USB TYPE-C into USB3.0 comprises:
the TYPE-C interface comprises a first pin group and a second pin group which are arranged side by side, wherein pins of the first pin group and pins of the second pin group are the same and are arranged in a reverse direction, and the first pin group and the second pin group both comprise a power supply pin, a grounding pin, a CC pin and a data pin;
the USB3.0 interface comprises a third pin group, wherein the third pin group comprises a power pin, a grounding pin and a data pin;
the detection circuit is configured to detect the plugging direction of an external TYPE-C interface connected with the TYPE-C interface according to signals of CC pins of the first pin group or the second pin group; and
and the switching circuit is configured to enable the data pin of the third pin group of the USB3.0 interface to be correspondingly communicated with the data pin of the first pin group when the external TYPE-C interface is in forward plugging, and enable the data pin of the third pin group of the USB3.0 interface to be correspondingly communicated with the data pin of the second pin group when the external TYPE-C interface is in reverse plugging.
2. The adapter of claim 1, wherein the detection circuit comprises a switching transistor, wherein the CC pin of the first pin group or the second pin group is connected to a control terminal of the switching transistor, and wherein an output terminal of the switching transistor outputs a direction detection signal.
3. The adapter according to claim 1, wherein the detection circuit comprises an NPN transistor, a base of the NPN transistor is connected to the CC pin of the first pin group or the second pin group, a collector of the NPN transistor is connected to a power supply via a pull-up resistor and outputs a direction detection signal, and an emitter of the NPN transistor is grounded.
4. The adapter of claim 1, wherein the switching circuit comprises a TYPE-C signal conversion chip including a fourth pin group, a fifth pin group, and a sixth pin group, the fourth pin group being connected to the high-speed data pin of the first pin group, the fifth pin group being connected to the high-speed data pin of the second pin group, the sixth pin group being connected to the high-speed data pin of USB3.0, the TYPE-C signal being configured to cause the sixth pin group to form a communication path with the fourth pin group when the external TYPE-C interface is a forward plug, and to cause the sixth pin group to form a communication path with the fifth pin group when the external TYPE-C interface is a reverse plug.
5. The adapter of claim 4, wherein said detection circuit outputs a direction detection signal, said TYPE-C signal conversion chip being connected to said direction detection signal.
6. The adapter of any of claims 1-5, further comprising a voltage conversion circuit connected between the TYPE-C interface and the detection circuit and switching circuit, the voltage conversion circuit configured to convert a voltage connected to a power pin of the TYPE-C interface to a lower voltage for provision to the detection circuit and switching circuit.
7. The adapter according to any one of claims 1 to 5, wherein said TYPE-C interface is a male plug and said USB3.0 interface is a female plug.
8. A method for converting USB TYPE-C into USB3.0 comprises the following steps:
detecting the plugging direction of an external TYPE-C interface connected with the TYPE-C interface according to a signal of a CC pin of the TYPE-C interface, wherein the TYPE-C interface comprises a first pin group and a second pin group which are arranged side by side, the pins of the first pin group and the pins of the second pin group are the same and are arranged in a reverse direction, and the pins of the first pin group and the pins of the second pin group comprise a power supply pin, a grounding pin, a data pin and the CC pin; and
and selectively and correspondingly communicating the data pins of the USB3.0 interface with the data pins of the first pin group and the second pin group according to the detected plugging direction of the external TYPE-C interface.
9. The method of claim 8, wherein the detecting the plugging direction of the external TYPE-C interface connected to the TYPE-C interface according to the CC pin signal of the TYPE-C interface is specifically: and detecting the plugging direction of the connected external TYPE-C interface according to the level of the CC pin signal of the TYPE-C interface.
10. The method of claim 8 or 9, wherein selectively communicating the data pins of the USB3.0 interface with the data pins of the first pin group and the second pin group comprises:
connecting fourth to sixth pin groups of a TYPE-C signal conversion chip with the high-speed data pin of the first pin group, the high-speed data pin of the second pin group and the high-speed data pin of USB3.0 respectively; and
make when external TYPE-C interface is the forward grafting sixth pin group with fourth pin group forms the communication route, make when external TYPE-C interface is reverse grafting sixth pin group with fifth pin group forms the communication route.
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| CN201711135811.2A CN107807892B (en) | 2017-11-14 | 2017-11-14 | Method for converting USB TYPE-C into USB3.0 and adapter |
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| CN201711135811.2A CN107807892B (en) | 2017-11-14 | 2017-11-14 | Method for converting USB TYPE-C into USB3.0 and adapter |
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| CN107807892B true CN107807892B (en) | 2019-12-24 |
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| WO2019183787A1 (en) * | 2018-03-27 | 2019-10-03 | 华为技术有限公司 | Terminal device, debugging card and debugging method |
| CN111552656B (en) * | 2020-05-20 | 2022-11-15 | 深圳市广和通无线股份有限公司 | Development board Type-C interface connection circuit |
| CN111930657A (en) * | 2020-05-29 | 2020-11-13 | 深圳市广和通无线股份有限公司 | Connection circuit, control method of connection circuit, and connection device |
| CN112186446A (en) * | 2020-09-07 | 2021-01-05 | 苏州浪潮智能科技有限公司 | USB interface expansion device and electronic equipment |
| CN112037443B (en) * | 2020-11-06 | 2021-12-03 | 南京研利科技有限公司 | Money collection prompting device, method for prompting money collection, and storage medium |
| CN112395227A (en) * | 2020-12-09 | 2021-02-23 | 鸿秦（北京）科技有限公司 | Method for bidirectional mutual conversion of USB3.0 and USB2.0 buses |
| CN113987991B (en) * | 2021-09-29 | 2022-09-27 | 展讯半导体(南京)有限公司 | Signal transmission device and electronic equipment |
| CN114637715B (en) * | 2022-03-09 | 2023-10-20 | 长鑫存储技术有限公司 | Memory slot, memory module structure, detection method, detection device and mainboard |
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| CN204045891U (en) * | 2014-05-08 | 2014-12-24 | 深圳市江波龙电子有限公司 | USB data line |
| US9728916B1 (en) * | 2016-02-04 | 2017-08-08 | Advanced-Connectek Inc. | Electrical receptacle connector |
| CN105703185B (en) * | 2016-02-18 | 2018-03-16 | 北京小米移动软件有限公司 | Method for transmitting signals, device and adapter |
| CN106253013A (en) * | 2016-10-08 | 2016-12-21 | 东莞市中州电子有限公司 | A kind of adapter |
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