CN216848732U - Multi-control-module OTA upgrading circuit and device suitable for USB Type-C interface - Google Patents
Multi-control-module OTA upgrading circuit and device suitable for USB Type-C interface Download PDFInfo
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- CN216848732U CN216848732U CN202220314894.1U CN202220314894U CN216848732U CN 216848732 U CN216848732 U CN 216848732U CN 202220314894 U CN202220314894 U CN 202220314894U CN 216848732 U CN216848732 U CN 216848732U
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Abstract
The utility model discloses a be suitable for many control module OTA upgrading circuit and device of USBType-C interface belongs to electronic circuit technical field. The OTA upgrading circuit comprises a signal input circuit and at least one channel selection circuit, the signal input circuit comprises a Type-C connector and a capacitor, the channel selection circuit comprises a USB signal switching IC chip, a resistor Rx and a capacitor Cx, a PIN9 PIN of the USB signal switching IC chip is connected with the capacitor Cx in series and then grounded and is connected with a PIN A4 PIN of the Type-C connector, a PIN8 PIN is grounded, a PIN10 PIN is connected with the resistor Rx in series and then is grounded and is used as an input end of a first switching control signal USB _ SEL1, a PIN1 PIN, a PIN2 PIN respectively corresponds to a PIN A6 PIN and a PIN A7 PIN of the Type-C connector, a PIN3 PIN is grounded, a PIN4 and a PIN5 PIN are used as a first channel of OTA upgrading, and a PIN6 and a PIN7 PIN are used as a second channel of OTA upgrading. The utility model discloses circuit structure is simple, has realized upgrading in order to the OTA of many control modules.
Description
Technical Field
The utility model relates to an electronic circuit technical field, concretely relates to be suitable for many control module OTA upgrade circuit and device of USBType-C interface.
Background
Usually, some complex devices are internally provided with a plurality of control modules carrying different processors, and the control modules usually have the requirement of firmware OTA upgrading. However, if the complex device only has a universal USB Type-C interface to the outside, OTA upgrade can be performed on each internal control module only by connecting the USB Type-C interface in a non-maintenance scene without disassembling the device. However, when a plurality of control modules simultaneously have OTA upgrading requirements, OTA upgrading needs to be performed on each control module in order. The existing multi-control-module OTA upgrading circuit is complex in structure and high in application cost, so that the OTA upgrading circuit with a simple structure is needed to meet the OTA ordered upgrading requirement of the multi-control module.
SUMMERY OF THE UTILITY MODEL
The utility model discloses with simplifying many control module OTA upgrading circuit structure, realize upgrading in order many control module's OTA for the purpose, provide a many control module OTA upgrading circuit who is suitable for USB Type-C interface.
To achieve the purpose, the utility model adopts the following technical proposal:
the OTA upgrading circuit comprises a signal input circuit and at least one channel selection circuit, wherein the signal input circuit comprises a Type-C connector CON6201 and a capacitor C6206, one end of the capacitor C6206 is connected with a pin A4 pin of the Type-C connector CON6201, the other end of the capacitor C6206 is grounded, and the pin A4 pin of the Type-C connector CON6201 is also externally connected with a power supply voltage;
the channel selection circuit comprises a USB signal switching IC chip, a resistor Rx and a capacitor Cx, a PIN9 PIN of the USB signal switching IC chip is connected with the capacitor Cx in series and then is grounded and is connected with a PIN A4 PIN of the Type-C connector CON6201, a PIN8 PIN is grounded, a PIN10 PIN is connected with the resistor Rx in series and then is grounded and is used as an input end of a first switching control signal USB _ SEL1, a PIN1 PIN and a PIN2 PIN are respectively connected with a PIN A6 PIN and a PIN A7 PIN of the Type-C connector CON6201 correspondingly, a PIN3 PIN is grounded, a PIN4 PIN5 PIN is used as a first channel for OTA upgrading, and a PIN6 PIN7 PIN is used as a second channel for OTA upgrading.
As a preferred scheme of the present invention, the channel selection circuit includes a first channel selection circuit and a second channel selection circuit, and the first channel selection circuit includes a USB signal switching IC chip U6802, a resistor R6802, and a capacitor C6810; the second channel selection circuit comprises a USB signal switching IC chip U6801, a resistor R6801 and a capacitor C6801, a PIN9 PIN of the USB signal switching IC chip U6802 is connected in series with the capacitor C6810 and then is grounded and is connected with a PIN A4 PIN of the Type-C connector CON6201, a PIN8 PIN is grounded, a PIN10 PIN is connected in series with the resistor R6802 and then is grounded and is used as an input end of the first switching control signal USB _ SEL1, the PIN1 PIN and the PIN2 PIN are respectively connected with a PIN A6 PIN and a PIN A7 PIN of the Type-C connector CON6201, the PIN3 PIN is grounded, the PIN4 PIN5 PIN is used as the first channel for OTA upgrading, and the PIN6 PIN7 PIN is respectively connected with a PIN1 PIN2 PIN of the USB signal switching IC chip U6801;
PIN9 of the USB signal switching IC chip U6801 is serially connected to PIN a4 of the capacitor C6801 and then grounded and connected to the Type-C connector CON6201, PIN8 is grounded, PIN10 is serially connected to the resistor R6801 and then grounded and serves as the input terminal of the second switching control signal USB _ SEL2, PIN3 is grounded, PINs PIN4 and PIN5 serve as the second channel for OTA upgrade, and PINs PIN6 and PIN7 serve as the third channel for OTA upgrade.
As a preferable solution of the present invention, the USB signal switching IC chip is of a model WAS 7227Q.
The utility model also provides a many control module OTA upgrading device that is suitable for the USBType-C interface, laid in the device be suitable for the many control module OTA upgrading circuit of USBType-C interface.
The utility model provides a be suitable for many control module OTA upgrading circuit simple structure of USB-Type-C interface has realized upgrading in order the OTA to many control module.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is an overall circuit structure diagram of a multi-control module OTA upgrading circuit suitable for a USB Type-C interface provided by the embodiment of the present invention;
fig. 2 is a schematic diagram of the connection between the OTA upgrading apparatus for multiple control modules suitable for USB Type-C interface and each control module in the external control signal input device and the complex device provided by the embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The embodiment of the utility model provides a be suitable for many control module OTA upgrade circuits of USB Type-C interface, as shown in FIG. 1, including signal input circuit 100 and at least one channel selection circuit, signal input circuit 100 includes Type-C connector CON6201 and electric capacity C6206, and pin A4 foot of Type-C connector CON6201 is connected to electric capacity C6206's one end, and other end ground connection (the effect of electric capacity C6206 is to filter the VBUS power), and pin A4 foot of Type-C connector CON6201 still connects external supply voltage simultaneously (expressed with "VBUS" in FIG. 1);
the number of the channel selection circuits is preferably set to 2, and as shown in fig. 1, the channel selection circuits include a first channel selection circuit 201 and a second channel selection circuit 202, and the first channel selection circuit 201 includes a USB signal switching IC chip U6802, a resistor R6802, and a capacitor C6810; the second channel selection circuit 202 comprises a USB signal switching IC chip U6801, a resistor R6801 and a capacitor C6801, a PIN9 PIN of the USB signal switching IC chip U6802 is connected in series with the capacitor C6810 and then grounded and connected with a PIN A4 PIN of a Type-C connector CON6201, a PIN8 PIN is grounded, a PIN10 PIN is connected in series with the resistor R6802 and then grounded and serves as an input end of a first switching control signal USB _ SEL1 (input by an external control signal input device), a PIN1 PIN and a PIN2 PIN respectively correspond to a PIN A6 PIN and a PIN A7 PIN of the Type-C connector CON6201, a PIN3 PIN is grounded, a PIN4 PIN5 PIN serves as a first channel of OTA upgrading, and a PIN6 PIN7 PIN respectively correspond to PIN1 and PIN2 PINs of the USB signal switching IC chip U6801;
PIN9 of the USB signal switching IC chip U6801 is serially connected with capacitor C6801 and then grounded and connected with PIN a4 of Type-C connector CON6201, PIN8 is grounded, PIN10 is serially connected with resistor R6801 and then grounded and used as the input end of the second switching control signal USB _ SEL2 (input by the external control signal input device), PIN3 is grounded, PINs PIN4 and PIN5 are used as the second channel of OTA upgrade, and PINs PIN6 and PIN7 are used as the third channel of OTA upgrade.
It should be noted here that the resistors R6802 and R6801 function as pull-down resistors to ensure that the power-on initialization process is low; the capacitors C6810, C6801 function as decoupling capacitors. The USB signal switching IC chips U6802 and U6801 are preferably IC chips of a type WAS7227Q, which are manufactured by well semiconductor.
The following briefly describes the principle of OTA upgrade of the switching control multi-control module in this embodiment:
the external control signal input device shown in fig. 2 inputs a first switching control signal USB _ SEL1 and a second switching control signal USB _ SEL2 to the USB signal switching IC chips U6802 and U6801 shown in fig. 1, when the levels of the USB _ SEL1 and the USB _ SEL2 are both 0, the IC chips U6802 and U6801 select the first channel as the control module connected to the first channel for OTA upgrade, and when the levels of the USB _ SEL1 and the USB _ SEL2 are 0, the IC chips U6802 and U6801 select the second channel as the control module connected to the second channel for OTA upgrade; when the levels of the USB _ SEL1 and the USB _ SEL2 are both 1, the IC chips U6802 and U6801 select a third channel to be connected with the control module of the first channel for OTA upgrading.
It should be emphasized that the utility model provides a be suitable for many control module OTA upgrade circuit of USB Type-C interface only has a passageway selection circuit, for example only has first passageway selection circuit 201 shown in FIG. 1, PIN6, PIN7 foot of USB signal switching IC chip U6802 are as the second passageway of OTA upgrade, and the passageway selection logic changes, for example when the level of USB _ SEL1 is 0, IC chip U6802 selects the first passageway to carry out OTA upgrade for the control module who connects the first passageway; when the level of the USB _ SEL1 is 1, the IC chip U6802 selects the second channel to be the control module connected with the second channel for OTA upgrade. Only the first channel selection circuit 201 is provided, and the resistor R6802 and the capacitor C6810 in the first channel selection circuit 201 shown in fig. 1 are respectively marked with Rx and Cx in a modified manner to be different from the case of having two channel selection circuits provided in the present embodiment.
The utility model also provides a many control module OTA upgrading device that is suitable for the USBType-C interface, as shown in FIG. 2, laid in this OTA upgrading device 300 be suitable for the many control module OTA upgrading circuit of USBType-C interface.
It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (4)
1. A multi-control module OTA upgrading circuit suitable for a USB Type-C interface is characterized by comprising a signal input circuit and at least one channel selection circuit, wherein the signal input circuit comprises a Type-C connector CON6201 and a capacitor C6206, one end of the capacitor C6206 is connected with a pin A4 pin of the Type-C connector CON6201, the other end of the capacitor C6206 is grounded, and the pin A4 pin of the Type-C connector CON6201 is also externally connected with a power supply voltage;
the channel selection circuit comprises a USB signal switching IC chip, a resistor Rx and a capacitor Cx, a PIN9 PIN of the USB signal switching IC chip is connected with the capacitor Cx in series and then is grounded and is connected with a PIN A4 PIN of the Type-C connector CON6201, a PIN8 PIN is grounded, a PIN10 PIN is connected with the resistor Rx in series and then is grounded and is used as an input end of a first switching control signal USB _ SEL1, a PIN1 PIN and a PIN2 PIN are respectively connected with a PIN A6 PIN and a PIN A7 PIN of the Type-C connector CON6201 correspondingly, a PIN3 PIN is grounded, a PIN4 PIN5 PIN is used as a first channel for OTA upgrading, and a PIN6 PIN7 PIN is used as a second channel for OTA upgrading.
2. The multi-control-module OTA upgrade circuit suitable for the USB Type-C interface of claim 1, wherein the channel selection circuit comprises a first channel selection circuit and a second channel selection circuit, the first channel selection circuit comprises a USB signal switching IC chip U6802, a resistor R6802 and a capacitor C6810; the second channel selection circuit comprises a USB signal switching IC chip U6801, a resistor R6801 and a capacitor C6801, a PIN9 PIN of the USB signal switching IC chip U6802 is connected with the capacitor C6810 in series and then is grounded and is connected with a PIN A4 PIN of the Type-C connector CON6201, a PIN8 PIN is grounded, a PIN10 PIN is connected with the resistor R6802 in series and then is grounded and is used as an input end of the first switching control signal USB _ SEL1, PINs PIN1 and PIN2 correspond to a PIN A6 PIN and a PIN A7 PIN of the Type-C connector CON6201 respectively, a PIN3 PIN is grounded, PINs PIN4 and PIN5 are used as the first channel for OTA upgrading, and PINs PIN6 and PIN7 correspond to PINs 1 and PIN2 PIN 6801 of the USB signal switching IC chip U6801 respectively;
PIN9 of the USB signal switching IC chip U6801 is serially connected to PIN a4 of the capacitor C6801 and then grounded and connected to the Type-C connector CON6201, PIN8 is grounded, PIN10 is serially connected to the resistor R6801 and then grounded and serves as the input terminal of the second switching control signal USB _ SEL2, PIN3 is grounded, PINs PIN4 and PIN5 serve as the second channel for OTA upgrade, and PINs PIN6 and PIN7 serve as the third channel for OTA upgrade.
3. The multi-control-module OTA upgrade circuit suitable for the USB Type-C interface according to claim 1, wherein the USB signal switching IC chip is WAS7227Q in model number.
4. A multi-control-module OTA upgrading device suitable for a USB Type-C interface, wherein the device is internally provided with a multi-control-module OTA upgrading circuit suitable for the USB Type-C interface according to any one of claims 1-3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220314894.1U CN216848732U (en) | 2022-02-16 | 2022-02-16 | Multi-control-module OTA upgrading circuit and device suitable for USB Type-C interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220314894.1U CN216848732U (en) | 2022-02-16 | 2022-02-16 | Multi-control-module OTA upgrading circuit and device suitable for USB Type-C interface |
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| Publication Number | Publication Date |
|---|---|
| CN216848732U true CN216848732U (en) | 2022-06-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220314894.1U Active CN216848732U (en) | 2022-02-16 | 2022-02-16 | Multi-control-module OTA upgrading circuit and device suitable for USB Type-C interface |
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| Country | Link |
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| CN (1) | CN216848732U (en) |
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- 2022-02-16 CN CN202220314894.1U patent/CN216848732U/en active Active
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