CN114201430B - Double-blind-insertion control circuit and display control method for single-CC interface MCU - Google Patents
Double-blind-insertion control circuit and display control method for single-CC interface MCU Download PDFInfo
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- CN114201430B CN114201430B CN202111488101.4A CN202111488101A CN114201430B CN 114201430 B CN114201430 B CN 114201430B CN 202111488101 A CN202111488101 A CN 202111488101A CN 114201430 B CN114201430 B CN 114201430B
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 86
- 238000004891 communication Methods 0.000 claims description 70
- 230000037431 insertion Effects 0.000 claims description 8
- 238000006467 substitution reaction Methods 0.000 abstract description 7
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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
- G06F13/42—Bus transfer protocol, e.g. handshake; Synchronisation
- G06F13/4282—Bus transfer protocol, e.g. handshake; Synchronisation on a serial bus, e.g. I2C bus, SPI bus
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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
- G06F13/40—Bus structure
- G06F13/4063—Device-to-bus coupling
- G06F13/4068—Electrical coupling
Abstract
The invention discloses a control circuit and a control method for realizing double-blind-insertion of a single-CC interface MCU (micro control Unit), wherein the circuit comprises a first control module, a second control module, a first TypeC interface module, a second TypeC interface module, a first signal overturning module, a second signal overturning module, a first switch switching module, a power supply conversion module and a video output interface module; the first control module is electrically connected with the first TypeC interface module, the second control module, the first signal overturning module and the power conversion module; the second control module is electrically connected with the second TypeC interface module, the power conversion module and the second signal overturning module; the first TypeC interface module is electrically connected with the power conversion module and the first signal overturning module; the second TypeC interface module is electrically connected with the power supply conversion module and the second signal overturning module; the first switch switching module is electrically connected with the first signal overturning module and the second signal overturning module respectively. The invention realizes the interaction of the information of the two TypeC interfaces, has strong substitution and wide application scene.
Description
Technical Field
The invention relates to the technical field of TypeC blind-plug control, in particular to a single CC interface MCU (micro control unit) double-blind-plug control circuit and a display control method.
Background
The TypeC interface, as a latest USB interface type, will obviously become a standard for future interfaces. The typeC interface is characterized by supporting both bidirectional transmission of electric power and transmission of audio/video and high-speed USB signals, but for audio/video transmission or electric power transmission, a special chip with two pairs of CC communication interfaces is needed to realize protocol communication. However, the schemes capable of realizing double-blind insertion are fewer in the market at present, and most MCUs with CC communication have only 1 group of CC pins. In addition, when the shortage of hardware resources is the case, the alternative scheme capable of realizing double-blind-mate can better solve the problem of resource shortage.
In addition, in many display devices in the prior art, the charging function and the display function of the display device are independently controlled by configuring an independent power input port and an independent data input port. Such a configuration has some limitations on the diversified use demands of users, and cannot meet the diversified demands. Therefore, the invention discloses a single-CC interface MCU to realize a double-blind-insertion control circuit, which is a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a single CC interface MCU realizing double-blind-insertion control circuit and a display control method aiming at the defects in the prior art.
The invention discloses a single CC interface MCU realizing double-blind-insertion control circuit, which comprises a first control module, a second control module, a first TypeC interface module, a second TypeC interface module, a first signal turning module, a second signal turning module, a first switch switching module, a power conversion module and a video output interface module; the first control module is respectively and electrically connected with the first TypeC interface module, the second control module, the first signal overturning module and the power supply conversion module; the second control module is respectively and electrically connected with the second TypeC interface module, the power conversion module and the second signal overturning module; the first TypeC interface module is electrically connected with the power supply conversion module and the first signal overturning module respectively; the second TypeC interface module is electrically connected with the power supply conversion module and the second signal overturning module respectively; the first switch switching module is electrically connected with the first signal overturning module, the second signal overturning module, the video output interface module and the second control module/the first control module respectively; the first control module and the second control module are electrically connected through a serial port.
Preferably, the single-CC interface MCU implementation double-blind-mate control circuit further includes a second switch switching module; the second switch switching module is respectively and electrically connected with the first TypeC interface module, the second TypeC interface module, the first signal overturning module, the second signal overturning module and the first switch switching module.
Preferably, the second switch switching module comprises a first switch switching unit, a second switch switching unit, a USB HUB interface unit and a USB seat; the first switch switching unit is electrically connected with the first TypeC interface module, the second TypeC interface module, the first switch switching module and the USB HUB interface unit respectively; the second switch switching unit is electrically connected with the first signal overturning module, the second signal overturning module, the first switch switching unit and the first switch switching module respectively.
Preferably, the power conversion module comprises a first power conversion unit and a second power conversion unit; the first power conversion unit is electrically connected with the second power conversion unit, the first TypeC interface module, the second TypeC interface module and the first control module respectively; the second power conversion unit is respectively and electrically connected with the first TypeC interface module, the second TypeC interface module and the second control module.
Preferably, the power conversion module further comprises a third power conversion unit; the third power conversion unit is electrically connected with the first TypeC interface module, the second TypeC interface module, the first control module and the second control module respectively.
Preferably, the first power conversion unit comprises a first DC/DC buck conversion subunit and a first switch subunit; the first DC/DC buck conversion subunit is electrically connected with the second power supply conversion unit, the second TypeC interface module, the first control module and the first switch subunit respectively; the first switch subunit is electrically connected with the first control module and the first TypeC interface module respectively.
Preferably, the second power conversion unit comprises a second DC/DC buck conversion subunit and a second switching subunit; the second DC/DC buck conversion subunit is electrically connected with the first power supply conversion unit, the first TypeC interface module, the second control module and the second switch subunit respectively.
Preferably, the third power conversion unit includes a third DC/DC buck conversion subunit; the third DC/DC buck conversion subunit is electrically connected with the first TypeC interface module, the second TypeC interface module, the first control module and the second control module respectively.
In a second aspect, the present invention discloses a display control method, including implementing a double-blind-insertion control circuit by using the single-CC interface MCU in the first aspect, where when any one of the first TypeC interface module or the second TypeC interface module has a communication device inserted, the display control method includes:
controlling the first control module or the second control module to communicate with the communication device;
Controlling the first control module or the second control module to control the communication equipment to be used as Si nk to acquire the power supply of the communication equipment;
if the communication equipment supports outputting video signals, controlling the first control module to output first control signals;
controlling the first switch switching module to select a video signal source output to the video output interface module according to the first control signal;
Or controlling the second control module to output a second control signal;
and controlling the first switch switching module to select the video signal source output to the video output interface module according to the second control signal.
Preferably, when a communication device is plugged into the first TypeC interface module and the second TypeC interface module at the same time, the display control method further includes:
Acquiring the sequence of the insertion of the communication equipment in the first TypeC interface module and the second TypeC interface module;
if the communication equipment in the first TypeC interface module is inserted first, controlling the first control module to serve as Si nk to acquire the power supply of the first communication equipment corresponding to the first TypeC interface module, and generating a power supply output control signal;
the first control module is controlled to communicate through a serial port, and the power supply output control signal is transmitted to the second control module;
controlling the second control module to receive the power output signal, and configuring second communication equipment corresponding to the second TypeC interface module as a power receiving end;
And controlling second communication equipment corresponding to the second TypeC interface module to serve as a video signal input source, and simultaneously receiving a power signal output by the second TypeC interface module to supply power to the second communication equipment.
The single-CC interface MCU implementation double-blind-insertion control circuit has the following beneficial effects that the single-CC interface MCU implementation double-blind-insertion control circuit disclosed by the invention realizes interaction of two TypeC interface information through 2 single-CC interface MCUs and serial ports, and has strong scheme substitution; in addition, when only one communication device is plugged in, the invention can configure the communication device into a power input end and a data source input end; when two communication devices are plugged in, the invention can configure the communication device plugged in first as a power input end, configure the device plugged in later as a data source input end, and charge the communication device plugged in later through the display device, thereby having wide application scene and meeting the diversified demands of users. Therefore, the invention has the advantages of strong substitution and wide application scene.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, in which the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained by those skilled in the art without inventive effort:
FIG. 1 is a schematic block diagram of a single CC interface MCU implementing a double-blind-mate control circuit in accordance with a preferred embodiment of the present invention;
FIG. 2 is a schematic block diagram of a single CC interface MCU implementing a double-blind-mate control circuit according to another preferred embodiment of the present invention;
FIG. 3 is a schematic block diagram of a single CC interface MCU implementing a double-blind-mate control circuit according to another preferred embodiment of the present invention;
FIG. 4 is a circuit diagram of a single CC interface MCU implementing a double-blind-mate control circuit according to a preferred embodiment of the present invention;
FIG. 5 is a flow chart of a display control method according to a preferred embodiment of the invention;
FIG. 6 is a flowchart of a display control method according to another preferred embodiment of the present invention.
Example 1
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the following description will be made in detail with reference to the technical solutions in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention.
As shown in FIG. 1, the preferred embodiment of the present invention comprises a first control module 1, a second control module 2, a first TypeC interface module 3, a second TypeC interface module 4, a first signal turning module 5, a second signal turning module 6, a first switch switching module 7, a power conversion module 8 and a video output interface module 9; the first control module 1 is electrically connected with the first TypeC interface module 3, the second control module 2, the first signal overturning module 5 and the power conversion module 8 respectively; the second control module 2 is electrically connected with the second TypeC interface module 4, the power conversion module 8 and the second signal overturning module 6 respectively; the first typeC interface module 3 is electrically connected with the power conversion module 8 and the first signal overturning module 5 respectively; the second TypeC interface module 4 is electrically connected with the power conversion module 8 and the second signal overturning module 6 respectively; the first switch switching module 7 is electrically connected with the first signal turning module 5, the second signal turning module 6, the video output interface module 9, and the second control module 2/the first control module 1 respectively. According to the invention, through 2 MCU with single cc interface, the interaction of the information of two TypeC interfaces is realized by connecting the serial ports, and the scheme has strong substitution; in addition, when only one communication device is plugged in, the invention can configure the communication device into a power input end and a data source input end; when two communication devices are plugged in, the invention can configure the communication device plugged in first as a power input end, configure the device plugged in later as a data source input end, and charge the communication device plugged in later through the display device, thereby having wide application scene and meeting the diversified demands of users. Therefore, the invention has the advantages of strong substitution and wide application scene.
Preferably, in this embodiment, the first control module 1 and the second control module 2 detect the cc line at the same time, and determine the input data of the corresponding Typec ports; and after the ports of the first control module 1/the second control module 2 are communicated by the communication equipment, the parameter information is shared to the second control module 2/the first control module 1 through the Uart.
Preferably, referring to fig. 2, the single CC interface MCU implementation double-blind-mate control circuit further includes a second switch switching module 10; the second switch switching module 10 is electrically connected with the first TypeC interface module 3, the second TypeC interface module 4, the first signal turning module 5, the second signal turning module 6 and the first switch switching module respectively.
Preferably, referring to fig. 3, the second switch module 10 includes a first switch switching unit 101, a second switch switching unit 102, a USB HUB interface unit 103 and a USB socket 104; the first switch switching unit 101 is electrically connected with the first TypeC interface module 3, the second TypeC interface module 4, the first switch switching module and the USB HUB interface unit 103 respectively; the second switch switching unit 102 is electrically connected to the first signal flipping module 5, the second signal flipping module 6, the first switch switching unit 101, and the first switch switching module, respectively.
Preferably, when any one of the first TypeC interface module 3 or the second TypeC interface module 4 has a communication device inserted, the corresponding control module communicates with the communication device to be used as a power supply of the sink acquisition device; if the communication device supports outputting video signals, such as DP video signals, the first control module 1 and the second control module 2 control the first signal turning module 5/the second signal turning module 6 to determine that the DP video is mapped in a 4l an or 2l an manner by outputting pol+flip, and in this embodiment, the first signal turning module 5/the second signal turning module 6 turns the signal line to implement the positive and negative insertion of TypeC; in this embodiment, the second control module 2 controls the H/L to achieve that the first switch module 7 selects the video source output to the video output interface module 9; for example, the H/L is high level, and the communication equipment diagram corresponding to the first TypeC interface module 3 is selected for displaying; the H/L is low level, and a communication equipment diagram corresponding to the second TypeC interface module 4 is selected for display; the first switch switching unit 101 is used for realizing the selection of the USB2.0 signal, and the second switch switching unit 102 is used for realizing the selection of the USB3.0 signal; for example, when the first signal flip module 5/the second signal flip module 6 is patterned in a 4l an manner, the first switch switching unit 101 selects a USB2.0 signal; when the first signal flip module 5/the second signal flip module 6 is configured to perform 2l an mapping, a USB3.0 signal is selected, and both USB signals are input to the USB HUB interface unit 103 and output to the USB socket 104.
Specifically, referring to fig. 4, in this embodiment, the types of the first control module 1 and the second control module 2 are CH548G single-chip microcomputer, which is used to implement data interaction and signal control; in the embodiment, 2 MCUs with single cc interfaces are used, and the serial ports are used for connecting to realize the interaction of information of two TypeC interfaces, so that an alternative scheme of double-blind insertion can be realized when hardware resources are short, and the problem of resource shortage is solved; the model numbers of the first signal turning module 5 and the second signal turning module 6 are VL170, and the signal turning module is used for realizing the signal turning of the TypeC interface blind insertion. It will be appreciated that in another preferred embodiment, the control module may use any MCU with a single cc interface, and the model of the control module and the signal flipping module are not specifically limited.
Preferably, the power conversion module 8 includes a first power conversion unit 81 and a second power conversion unit 82; the first power conversion unit 81 is electrically connected to the second power conversion unit 82, the first TypeC interface module 3, the second TypeC interface module 4, and the first control module 1, respectively; the second power conversion unit 82 is electrically connected to the first TypeC interface module 3, the second TypeC interface module 4, and the second control module 2, respectively.
Preferably, the power conversion module 8 further includes a third power conversion unit 83; the third power conversion unit 83 is electrically connected to the first TypeC interface module 3, the second TypeC interface module 4, the first control module 1, and the second control module 2, respectively.
Preferably, the first power conversion unit 81 includes a first DC/DC buck conversion subunit 811 and a first switching subunit 812; the first DC/DC buck conversion subunit 811 is electrically connected to the second power conversion unit 82, the second TypeC interface module 4, the first control module 1, and the first switch subunit 812, respectively; the first switch subunit 812 is electrically connected to the first control module 1 and the first TypeC interface module 3, respectively. It can be understood that the model of the first DC/DC buck converter subunit 811 in this embodiment is JW 3702I M5200, and the first switch subunit 812 is a MOS transistor. In another preferred embodiment, the types of the first DC/DC buck converter subunit 811 and the first switch subunit 812 are not particularly limited.
Preferably, the second power conversion unit 82 includes a second DC/DC buck conversion subunit 821 and a second switching subunit 822; the second DC/DC buck conversion subunit 821 is electrically connected to the first power conversion unit 81, the first TypeC interface module 3, the second control module 2, and the second switching subunit 822, respectively. It can be understood that the model of the second DC/DC buck converter subunit 821 of the present embodiment is JW 3702I M, 5200, and the second switch subunit 822 is a MOS transistor. In another preferred embodiment, the types of the second DC/DC buck converter subunit 821 and the second switching subunit 822 are not particularly limited.
Preferably, the third power conversion unit 83 includes a third DC/DC buck conversion sub-unit 831; the third DC/DC buck conversion subunit 831 is electrically connected to the first TypeC interface module 3, the second TypeC interface module 4, the first control module 1, and the second control module 2, respectively. It can be appreciated that the model of the third DC/DC buck converter subunit 831 of the present embodiment is TD1583. In another preferred embodiment, the model of the third DC/DC buck converter subunit 831 is not particularly limited.
Preferably, in this embodiment, when communication devices are inserted into the first type c interface module 3 and the second type c interface module 4 at the same time, assuming that the communication devices in the first type c interface module 3 are inserted first, the first control module 1 is controlled to obtain, as the sink, a power supply of a first communication device corresponding to the first type c interface module 3, and generate a power supply output control signal, where the first control module 1 communicates through a serial port, and transmits the power supply output control signal to the second control module 2; the second control module 2 receives the power output signal, configures the second communication device corresponding to the second TypeC interface module 4 to be a power receiving end, and in this embodiment, after the voltage is lifted by adjusting the second DC/DC buck conversion subunit 821JW3702/I M5200 through I2C, opens the second switch subunit 822 to supply power to the second communication device corresponding to the second TypeC interface module 4; the LDO is powered by a device power supply inserted into the first TypeC interface module 3 or the second TypeC interface module 4, outputs 3.3v to power the first control module 1 or the second control module 2, and the third DC/DC buck converter subunit 831TD1583 is also powered by a power supply of any TypeC port and converts the power supply into 5v to power other chip circuits of the motherboard.
Example two
The invention discloses a display control method, please refer to fig. 5, which includes an implementation of a double-blind-insertion control circuit by a single-CC interface MCU according to an embodiment, and when any one of the first TypeC interface module 3 or the second TypeC interface module 4 is inserted with a communication device, the display control method includes:
s1, controlling the first control module 1 or the second control module 2 to communicate with the communication equipment;
s2, controlling the first control module 1 or the second control module 2 to control the communication equipment to be used as Si nk to acquire the power supply of the communication equipment;
S3, if the communication equipment supports outputting video signals, controlling the first control module 1 to output first control signals;
s4, controlling the first switch switching module 7 to select a video signal source output to the video output interface module 9 according to the first control signal;
S5, or controlling the second control module 2 to output a second control signal;
And S6, controlling the first switch switching module 7 to select a video signal source output to the video output interface module 9 according to the second control signal.
Preferably, referring to fig. 6, when a communication device is plugged into the first TypeC interface module 3 and the second TypeC interface module 4 at the same time, the display control method further includes:
s7, acquiring the sequence of the insertion of the communication equipment in the first TypeC interface module 3 and the second TypeC interface module 4;
S8, if the communication equipment in the first TypeC interface module 3 is inserted first, controlling the first control module 1 to serve as Si nk to acquire the power supply of the first communication equipment corresponding to the first TypeC interface module 3, and generating a power supply output control signal;
S9, controlling the first control module 1 to communicate through a serial port, and transmitting the power supply output control signal to the second control module 2;
S10, controlling the second control module 2 to receive the power output signal, and configuring second communication equipment corresponding to the second TypeC interface module 4 as a power receiving end;
And S11, controlling second communication equipment corresponding to the second TypeC interface module 4 to serve as a video signal input source, and simultaneously receiving a power signal output by the second TypeC interface module 4 to supply power to the second communication equipment. It will be appreciated that the present invention enables configuring a communication device as a power input and a data source input when only one communication device is plugged in; when two communication devices are plugged in, the invention can configure the communication device plugged in first as a power input end, configure the device plugged in later as a data source input end, and charge the communication device plugged in later through the display device, thereby having wide application scene and meeting the diversified demands of users.
In summary, the single-CC interface MCU implementing double-blind-mate control circuit provided by the present invention includes a first control module 1, a second control module 2, a first TypeC interface module 3, a second TypeC interface module 4, a first signal turning module 5, a second signal turning module 6, a first switch switching module 7, a power conversion module 8 and a video output interface module 9; the first control module 1 is electrically connected with the first TypeC interface module 3, the second control module 2, the first signal overturning module 5 and the power conversion module 8 respectively; the second control module 2 is electrically connected with the second TypeC interface module 4, the power conversion module 8 and the second signal overturning module 6 respectively; the first typeC interface module 3 is electrically connected with the power conversion module 8 and the first signal overturning module 5 respectively; the second TypeC interface module 4 is electrically connected with the power conversion module 8 and the second signal overturning module 6 respectively; the first switch switching module 7 is respectively connected with the first signal turning module 5, the second signal turning module 6 and the video output interface module 9. The second control module 2/the first control module 1 is electrically connected. Therefore, the invention realizes the interaction of the information of the two TypeC interfaces by connecting the MCU with 2 single cc interfaces through the serial ports, and the scheme has strong substitution; in addition, when only one communication device is plugged in, the invention can configure the communication device into a power input end and a data source input end; when two communication devices are plugged in, the invention can configure the communication device plugged in first as a power input end, configure the device plugged in later as a data source input end, and charge the communication device plugged in later through the display device, thereby having wide application scene and meeting the diversified demands of users. Therefore, the invention has the advantages of strong substitution and wide application scene.
The invention provides a double-blind-insertion control circuit and a display control method for a single-CC interface MCU, which are described in detail, wherein specific examples are applied to illustrate the principle and the implementation of the invention, and the description of the above examples is only used for helping to understand the method and the core idea of the invention; meanwhile, as for the person skilled in the art, according to the idea of the present invention, there are changes in the specific embodiments and the application scope, so that the content of the present specification is only the embodiments of the present invention, and therefore, the present invention is not limited to the patent scope of the present invention, and all equivalent structures or equivalent processes using the content of the present specification and the accompanying drawings are included in the patent protection scope of the present invention, or are directly or indirectly applied to other related technical fields. And should not be construed as limiting the invention.
Claims (10)
1. The utility model provides a single CC interface MCU realizes double blind insertion control circuit which characterized in that includes: the device comprises a first control module, a second control module, a first TypeC interface module, a second TypeC interface module, a first signal overturning module, a second signal overturning module, a first switch switching module, a power conversion module and a video output interface module; the first control module is respectively and electrically connected with the first TypeC interface module, the second control module, the first signal overturning module and the power supply conversion module; the second control module is respectively and electrically connected with the second TypeC interface module, the power conversion module and the second signal overturning module; the first TypeC interface module is electrically connected with the power supply conversion module and the first signal overturning module respectively; the second TypeC interface module is electrically connected with the power supply conversion module and the second signal overturning module respectively; the first switch switching module is electrically connected with the first signal overturning module, the second signal overturning module, the video output interface module and the second control module/the first control module respectively; the first control module and the second control module are electrically connected through a serial port.
2. The single-CC interface MCU implemented double-blind-mate control circuit of claim 1, further comprising a second switch switching module; the second switch switching module is respectively and electrically connected with the first TypeC interface module, the second TypeC interface module, the first signal overturning module, the second signal overturning module and the first switch switching module.
3. The single-CC interface MCU implemented double-blind-mate control circuit of claim 2, wherein the second switch module comprises a first switch switching unit, a second switch switching unit, a USB HUB interface unit, and a USB socket; the first switch switching unit is electrically connected with the first TypeC interface module, the second TypeC interface module, the first switch switching module and the USB HUB interface unit respectively; the second switch switching unit is electrically connected with the first signal overturning module, the second signal overturning module, the first switch switching unit and the first switch switching module respectively.
4. The single-CC interface MCU implemented double-blind-mate control circuit of claim 1, wherein the power conversion module comprises a first power conversion unit and a second power conversion unit; the first power conversion unit is electrically connected with the second power conversion unit, the first TypeC interface module, the second TypeC interface module and the first control module respectively; the second power conversion unit is respectively and electrically connected with the first TypeC interface module, the second TypeC interface module and the second control module.
5. The single-CC interface MCU implemented double-blind-mate control circuit of claim 4, wherein the power conversion module further comprises a third power conversion unit; the third power conversion unit is electrically connected with the first TypeC interface module, the second TypeC interface module, the first control module and the second control module respectively.
6. The single-CC interface MCU implemented double-blind-mate control circuit of claim 4 wherein the first power conversion unit comprises a first DC/DC buck conversion subunit and a first switching subunit; the first DC/DC buck conversion subunit is electrically connected with the second power supply conversion unit, the second TypeC interface module, the first control module and the first switch subunit respectively; the first switch subunit is electrically connected with the first control module and the first TypeC interface module respectively.
7. The single-CC interface MCU implemented double-blind-mate control circuit of claim 4 wherein the second power conversion unit comprises a second DC/DC buck conversion subunit and a second switching subunit; the second DC/DC buck conversion subunit is electrically connected with the first power supply conversion unit, the first TypeC interface module, the second control module and the second switch subunit respectively.
8. The single CC interface MCU implemented double-blind-mate control circuit of claim 5, wherein the third power conversion unit comprises a third DC/DC buck conversion subunit; the third DC/DC buck conversion subunit is electrically connected with the first TypeC interface module, the second TypeC interface module, the first control module and the second control module respectively.
9. A display control method, characterized in that the single CC interface MCU of any of claims 1-8 is included to implement a double-blind-insertion control circuit, and when any of the first TypeC interface module or the second TypeC interface module has a communication device inserted, the display control method includes:
controlling the first control module or the second control module to communicate with the communication device;
controlling the first control module or the second control module to control the communication equipment to be used as Sink to acquire the power supply of the communication equipment;
if the communication equipment supports outputting video signals, controlling the first control module to output first control signals;
controlling the first switch switching module to select a video signal source output to the video output interface module according to the first control signal;
Or controlling the second control module to output a second control signal;
and controlling the first switch switching module to select the video signal source output to the video output interface module according to the second control signal.
10. The display control method according to claim 9, wherein when a communication device is inserted into the first TypeC interface module and the second TypeC interface module at the same time, the display control method further comprises:
Acquiring the sequence of the insertion of the communication equipment in the first TypeC interface module and the second TypeC interface module;
If the communication equipment in the first TypeC interface module is inserted first, controlling the first control module to serve as a Sink to acquire the power supply of the first communication equipment corresponding to the first TypeC interface module, and generating a power supply output control signal;
the first control module is controlled to communicate through a serial port, and the power supply output control signal is transmitted to the second control module;
controlling the second control module to receive the power output signal, and configuring second communication equipment corresponding to the second TypeC interface module as a power receiving end;
And controlling second communication equipment corresponding to the second TypeC interface module to serve as a video signal input source, and simultaneously receiving a power signal output by the second TypeC interface module to supply power to the second communication equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111488101.4A CN114201430B (en) | 2021-12-08 | 2021-12-08 | Double-blind-insertion control circuit and display control method for single-CC interface MCU |
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| CN202111488101.4A CN114201430B (en) | 2021-12-08 | 2021-12-08 | Double-blind-insertion control circuit and display control method for single-CC interface MCU |
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| CN114201430A CN114201430A (en) | 2022-03-18 |
| CN114201430B true CN114201430B (en) | 2024-04-26 |
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| CN202111488101.4A Active CN114201430B (en) | 2021-12-08 | 2021-12-08 | Double-blind-insertion control circuit and display control method for single-CC interface MCU |
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| CN115145524B (en) * | 2022-07-21 | 2023-11-17 | 深圳市新龙鹏科技有限公司 | Double-blind-insertion display control circuit, device and method based on single-group CC |
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