CN208969654U - Have both the control system of USB interface downloading and HUB extension - Google Patents
Have both the control system of USB interface downloading and HUB extension Download PDFInfo
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- CN208969654U CN208969654U CN201821491921.2U CN201821491921U CN208969654U CN 208969654 U CN208969654 U CN 208969654U CN 201821491921 U CN201821491921 U CN 201821491921U CN 208969654 U CN208969654 U CN 208969654U
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Abstract
The utility model discloses a kind of control systems for having both USB interface downloading and HUB extension, including USB interface, the first chip being connect with USB interface, the second chip being connect with the first chip, CPU the and HUB chip being connect with the second chip, first chip and the second chip are connect with HUB chip, there is first interface and second interface, the first interface and second interface are used to connection electronic equipment on the HUB chip.The utility model may be implemented, and USB interface download function and HUB extend function, and two kinds of functions can also switch.
Description
Technical field
The utility model belongs to technical field of circuit control more particularly to one kind has both USB interface downloading and HUB extension
Control system.
Background technique
Currently, flourishing with electronic equipment, the plate and mobile phone of most of calls of 3G 4G on the market, interface
Very little, more device requirements in people are unable to satisfy, a USB interface can only meet the download function of 1 equipment, reduce use
Family experience.
Therefore, the prior art is to be improved.
Utility model content
The main purpose of the utility model is that propose a kind of control system for having both USB interface downloading and HUB extension,
The technical issues of to solve mentioned in background technique.
The control system for having both USB interface downloading and HUB extension of the utility model, including USB interface, connect with USB
First chip of mouth connection, the second chip being connect with the first chip, CPU the and HUB chip being connect with the second chip, the first core
Piece and the second chip are connect with HUB chip, have first interface and second interface, the first interface on the HUB chip
Connection electronic equipment is used to second interface.
Preferably, the model of first chip and the model of the second chip are WAS7227Q-10/TR.
Preferably, the electronic equipment includes the first HOST equipment, the 2nd HOST equipment and the 3rd HOST equipment.
Preferably, the model GL850G of the HUB chip.
Preferably, the USB 1+ pin of first chip and USB 2+ pin are connect with USB interface, the first chip
USB 2+ pin and USB 2- pin are connect with HUB chip, the SEL pin of the first chip respectively with second resistance one end and
The connection of one resistance one end, second resistance other end ground connection, the first resistor other end are connect with CPU, and the USB 1+ of the second chip is inserted
Foot is connect with the USB 1+ pin of the first chip, and the USB 1- pin of the second chip is connect with the USB 1- pin of the first chip,
The USB 2+ pin and USB 2- pin of second chip are connect with HUB chip, and the SEL pin of the second chip is electric with third respectively
Resistance one end connect with the 4th resistance one end, the 4th resistance other end respectively with the OE pin of the second chip and connect, third is electric
The resistance other end is connect with CPU.
The control system for having both USB interface downloading and HUB extension of the utility model, may be implemented under USB interface
It carries function and HUB chip extends function, is i.e. first interface on HUB chip and second interface is used equally for connection electronics to set
It is standby, extension function is realized by multiple interfaces.It, can be for the downloading mode of USB interface and when CPU receives control signal
And the mode of extension of HUB chip switches over.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, without creative efforts,
It is also possible to obtain other drawings based on these drawings.
Fig. 1 is the functional block diagram for the control system that the utility model has both USB interface downloading and HUB extension；
Fig. 2 is the circuit connection diagram for the control system that the utility model has both USB interface downloading and HUB extension.
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
It should be appreciated that specific embodiment described herein is only used to explain the utility model, it is not used to limit this
Utility model.
It should be noted that relational language such as " first ", " second " can be used for describing various assemblies, but these arts
Language is not intended to limit the component.These terms are only used to distinguish a component and another component.For example, not departing from the utility model
Range, first assembly can be referred to as the second component, and the second component can also similarly be referred to as first assembly.Term
"and/or" refers to continuous item and describes the combination of any one or more of item.
With reference to Fig. 1, Fig. 1 is the principle frame for the control system that the utility model has both USB interface downloading and HUB extension
Figure.
As shown in Figure 1, the control system for having both USB interface downloading and HUB extension of the utility model, including USB connect
Mouth 10, the first chip 11 connecting with usb 10, the second chip 12 connecting with the first chip 11 and the second chip 12 connect
CPU13 the and HUB chip 14 connect, the first chip 11 and the second chip 12 are connect with HUB chip 14, on the HUB chip 14
With first interface and second interface, the first interface and second interface are used to connection electronic equipment；The electronic equipment
Including the first HOST equipment 21, the 2nd HOST equipment 22 and the 3rd HOST equipment 23；The utility model has both USB interface downloading
And the control system of HUB extension, the download function and HUB chip extension function of USB interface, i.e. HUB chip may be implemented
On first interface and second interface be used equally for connection electronic equipment, pass through multiple interfaces realize extension function.And when CPU connects
When receiving control signal (as shown in Figure 2), control signal can be by key 33 or software APP44 is triggered, can be for
The downloading mode of USB interface and the mode of extension of HUB chip switch over.Specifically, as shown in Fig. 2, first chip
Model and the model of the second chip be WAS7227Q-10/TR.First HOST equipment can be mouse or keyboard；Second
HOST equipment can be mouse or keyboard；3rd HOST equipment can be mouse or keyboard.
For the download function of USB interface, expression: by input unit, such as USB flash disk, USB flash disk accesses USB interface, realizes
The function of CPU reading USB flash disk content.For the extension function of HUB chip, expression: the first HOST connecting with HUB chip is set
Standby, the 2nd HOST equipment and the 3rd HOST equipment realize the function connecting with CPU, that is, realize the access of multiple electronic equipments.
Specifically, as shown in Fig. 2, the model GL850G of the HUB chip；For the model of CPU, including high pass:
MSN8953,MSN8940 ；And MTK:MT8735 and MT8783.
With reference to Fig. 2, Fig. 2 is the circuit connection for the control system that the utility model has both USB interface downloading and HUB extension
Schematic diagram.
Preferably, the USB 1+ pin of first chip and USB 2+ pin are connect with usb 10, the first chip
USB 2+ pin and USB 2- pin connect with HUB chip 14, the SEL pin of the first chip 11 respectively with second resistance R2
One end is connected with the one end first resistor R1, and second resistance R2 other end ground connection, the first resistor R1 other end is connect with CPU14, the
The USB 1+ pin of two chips 12 is connect with the USB 1+ pin of the first chip, the USB 1- pin and the first chip of the second chip
The connection of USB 1- pin, the USB 2+ pin and USB 2- pin of the second chip connect with HUB chip 14, the second chip
SEL pin is connect with the one end 3rd resistor R3 and the 4th one end resistance R4 respectively, the 4th resistance other end respectively with the second chip
OE pin and ground connection, the 3rd resistor other end connect with CPU；The VCC pin of first chip respectively with first capacitor C1 mono-
End connected with the one end charger Power_Charger, the charger Power_Charger other end respectively with second one end capacitor C2
It is connected with the VCC pin of the second chip, first capacitor other end ground connection, second capacitor other end ground connection；This preferred embodiment pair
Circuit connection between the first chip, the second chip, CPU, USB interface, HUB chip is specifically limited, following to realize
Working principle:
USB downloading mode: i.e. hardware initialization Device(Slave) mode work when logic.
When connecting computer downloading (for example CPU is the master control for belonging to computer), Power_Charger charger exports VSYS
The OTG ID of system voltage, USB interface is defaulted as height, and into Device mode, the VCC pin of the first chip is power supply foot, the
One chip enters working condition, and voltage reaches second resistance R2 by the SEL pin of the first chip, drop-down ground connection, at this time CPU without
Software, i.e. GPIO1 are high-impedance state, and 11 electronic switch of the first chip is switched to (WAS7227Q-10/TR) USB 1+ access, connects the
USB 1+, C2 VCC power supply filter capacitor, the always on working condition of OE ground connection U2, the second chip SEL foot of two chips 12 are cut
Change it is enabled connect under R4 100K 1 access of default switch USB, R3 10K meet CPU, for CPU without software, this GPIO is high resistant at this time
State U2 electronic switch is switched to, U1, U2 switch USB 2 is hanging shape, 1 switching pathway access of U1, U2, USB
(WAS7227Q-10/TR) it is connected to CPU Device.
HUB chip extend function: after booting software can define various ways CPU enter the upper layer Mode A PP HOST behaviour
Work or key etc. are flexible and changeable.
It is that system power supply is often grounded the second core in, OE that booting, which normally enters the first chip after system, the second chip, VCC,
The always on working condition of piece starts default on USB 1+, by layer open HOST on key 33 or APP44, CPU at this time
GPIO TYPEC_SEL exports high 1.8V level 1.7V or so after R3,10K, R4,100K partial pressure, the second chip 12 switch
D+ D- is switched to USB 2+ and is connected to HUB IC extension multichannel interface, and HUB-DP1 is connected to the first chip, the second chip is all cut
Change to the channel USB 2+.
Micor_USB is at this time if the another GPIO2 output of 0V CPU setting is when HOST equipment OTG_id interruption is detected as bottom
For high 1.8V after R1,10K, R2,100K partial pressure, 11 SEL of the first chip is 1.7V or so, first chip switch D+, D-
Being switched to USB 2+ access also can work normally.
If machine with ADB debugs BUG and mobile phone plane plate PC(Slave at this time) mode when can with key 33 or
The setting of the upper layer APP44, which switches back, facilitates operation.
The above is only the preferred embodiments of the utility model, and therefore it does not limit the scope of the patent of the utility model, all
Equivalent structure or equivalent flow shift made based on the specification and figures of the utility model, is applied directly or indirectly in
Other related technical areas are also included in the patent protection scope of the utility model.
Claims (5)
1. a kind of control system for having both USB interface downloading and HUB extension, which is characterized in that connect including USB interface, with USB
First chip of mouth connection, the second chip being connect with the first chip, CPU the and HUB chip being connect with the second chip, the first core
Piece and the second chip are connect with HUB chip, have first interface and second interface, the first interface on the HUB chip
Connection electronic equipment is used to second interface.
2. having both the control system of USB interface downloading and HUB extension as described in claim 1, which is characterized in that described first
The model of chip and the model of the second chip are WAS7227Q-10/TR.
3. having both the control system of USB interface downloading and HUB extension as described in claim 1, which is characterized in that the electronics
Equipment includes the first HOST equipment, the 2nd HOST equipment and the 3rd HOST equipment.
4. having both the control system of USB interface downloading and HUB extension as described in claim 1, which is characterized in that the HUB
The model GL850G of chip.
5. having both the control system of USB interface downloading and HUB extension as described in claim 1, which is characterized in that described first
The USB 1+ pin and USB 2+ pin of chip are connect with USB interface, the USB 2+ pin and USB 2- pin of the first chip
It is connect with HUB chip, the SEL pin of the first chip is connect with second resistance one end and first resistor one end respectively, the second electricity
Other end ground connection is hindered, the first resistor other end is connect with CPU, and the USB 1+ pin of the second chip and the USB 1+ of the first chip are inserted
Foot connection, the USB 1- pin of the second chip connect with the USB 1- pin of the first chip, the USB 2+ pin of the second chip with
USB 2- pin is connect with HUB chip, and the SEL pin of the second chip connects with 3rd resistor one end and the 4th resistance one end respectively
Connect, the 4th resistance other end respectively with the OE pin of the second chip and connect, the 3rd resistor other end is connect with CPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821491921.2U CN208969654U (en) | 2018-09-12 | 2018-09-12 | Have both the control system of USB interface downloading and HUB extension |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821491921.2U CN208969654U (en) | 2018-09-12 | 2018-09-12 | Have both the control system of USB interface downloading and HUB extension |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208969654U true CN208969654U (en) | 2019-06-11 |
Family
ID=66755060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821491921.2U Active CN208969654U (en) | 2018-09-12 | 2018-09-12 | Have both the control system of USB interface downloading and HUB extension |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208969654U (en) |
-
2018
- 2018-09-12 CN CN201821491921.2U patent/CN208969654U/en active Active
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Address after: 518000 Meisheng Huigu Science Park, No. 83 Dabao Road, 33 District, Shanghe Street, Baoan District, Shenzhen City, Guangdong Province, 5 4th Floors of Meigu, 5 2nd Floors-2 of Meigu, 6 2nd Floors-2 of Meigu and 6 4th Floors of Meigu Patentee after: EMDOOR DIGITAL TECHNOLOGY Co.,Ltd. Address before: 518000 Guangdong, Shenzhen, Baoan District Xin'an street, Baocheng 28 District 49-1, 6FC, 4 floor 402, 8 floor 816 Patentee before: EMDOOR DIGITAL TECHNOLOGY Co.,Ltd. |
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| CP02 | Change in the address of a patent holder |
Address after: 901, building 1, No. 9, Jinxiu Middle Road, Laokeng community, Longtian street, Pingshan District, Shenzhen City, Guangdong Province Patentee after: EMDOOR DIGITAL TECHNOLOGY Co.,Ltd. Address before: 518000 4th floor, building 5, building 2-2, building 6, building 2-2, building 6, building 4, Meisheng Huigu Science Park, 83 Dabao Road, Shanghe community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: EMDOOR DIGITAL TECHNOLOGY Co.,Ltd. |