CN206907018U - Compatible RS232 and GPIO semiotic functions a kind of computer interface - Google Patents
Compatible RS232 and GPIO semiotic functions a kind of computer interface Download PDFInfo
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- CN206907018U CN206907018U CN201720808924.3U CN201720808924U CN206907018U CN 206907018 U CN206907018 U CN 206907018U CN 201720808924 U CN201720808924 U CN 201720808924U CN 206907018 U CN206907018 U CN 206907018U
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- 230000005540 biological transmission Effects 0.000 description 2
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- 239000004606 Fillers/Extenders Substances 0.000 description 1
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Abstract
Compatible RS232 and GPIO semiotic functions a kind of computer interface, including mainboard interface, the mainboard interface includes first group of terminal, Second terminal and the 3rd group of terminal, first group of terminal, Second terminal and the 3rd group of terminal are respectively equipped with 8 terminals, the mainboard interface is wire jumper interface, the mainboard interface is provided with toggle switch, and the toggle switch connects first group of terminal and Second terminal or second group of terminal of connection and the 3rd group of terminal；First group of terminal connects RS232 interface with Second terminal, and second group of terminal and the 3rd group of terminal connect GPIO interface.Mainboard interface of the present utility model is provided with toggle switch so that mainboard interface simultaneously can the rs 232 serial interface signal of compatible RS232 interface and the data signal of GPIO interface, stability is strong, and compatibility is good, while saves the space-consuming of mainboard.
Description
Technical field
Field of computer technology is the utility model is related to, espespecially a kind of compatible RS232 and GPIO semiotic functions computer
Interface.
Background technology
GPIO interface is general I/O port or bus extender, and people utilize industrial standard I2C, SMBus or SPI
Interface simplifies the extension of I/O mouths.When microcontroller or chipset do not have enough I/O ports, or when system is needed using remote
When holding serial communication or control, GPIO products can provide extra control and function for monitoring, and each GPIO port can be by soft
Part is each configured to input or exported.Maxim GPIO product lines include the GPIO of 8 ports to 28 ports, there is provided push-pull type is defeated
Go out or open-drain exports.
RS232 interface is one of communication interface on personal computer, by Electronic Industries Association (Electronic
Industries Association, EIA) the asynchronous transmission standard interface formulated.Usual RS232 interface is with 9 pins
(DB-9) or the kenels of 25 pins (DB-25) occurs, and has two groups of RS232 interfaces on general personal computer, claims respectively
For COM1 and COM2.
The mainboard interface of prior art Computer can not compatible RS232 and GPIO signals simultaneously transmission, it is necessary to respectively
RS232 interface and GPIO interface are set, take motherboard space, while make it that the hardware setting of computer is more complicated, compatibility
It is not good enough.
The content of the invention
Compatible RS232 and the GPIO letter that a kind of stability is strong to solve the above problems, the utility model provides, compatibility is good
The computer interface of number function.
To achieve the above object, the technical solution adopted in the utility model is：A kind of compatible RS232 and GPIO semiotic functions
Computer interface, including mainboard interface, the mainboard interface include first group of terminal, Second terminal and the 3rd group of terminal, institute
State first group of terminal, Second terminal and the 3rd group of terminal and be respectively equipped with 8 terminals, the mainboard interface is wire jumper interface, described
Mainboard interface is provided with toggle switch, the toggle switch connect first group of terminal and Second terminal or second group of terminal of connection and
3rd group of terminal, first group of terminal connect RS232 interface with Second terminal, and second group of terminal and the 3rd group of terminal connect
Logical GPIO interface.
Specifically, the 3rd group of resistance that O ohms are also associated between terminal and toggle switch.
Specifically, the GPIO interface uses IT8783 chips.
Specifically, the RS232 interface is DB-9 RS232 interface.
The beneficial effects of the utility model are：Mainboard interface of the present utility model is provided with toggle switch, by stirring out
Connection connects first group of terminal and Second terminal or second group of terminal of connection and the 3rd group of terminal, so as to select to connect RS232 interface
Or GPIO interface so that mainboard interface simultaneously can the rs 232 serial interface signal of compatible RS232 interface and the data signal of GPIO interface,
And the resistance of O ohms is also associated between terminal and toggle switch at the 3rd group, the data signal of GPIO interface can be ensured
The serial signal of RS232 interface is not affected, stability is strong, and compatibility is good, while saves the space-consuming of mainboard.
Brief description of the drawings
Fig. 1 is the connection diagram of this specific embodiment mainboard interface.
Fig. 2 is the schematic diagram figure of this specific embodiment toggle switch.
Embodiment
The utility model is on a kind of compatible RS232 and the computer interface of GPIO semiotic functions, including mainboard interface, institute
To state mainboard interface and be provided with 24 terminals, every 8 terminals are divided into first group of terminal, Second terminal and the 3rd group of terminal as one group,
The mainboard interface is wire jumper interface, and the mainboard interface is provided with toggle switch, and the toggle switch connects first group of terminal
With Second terminal or second group of terminal of connection and the 3rd group of terminal；When toggle switch connects first group of terminal and Second terminal,
Mainboard interface connects RS232 interface so that serial signal is transmitted between mainboard interface and mainboard, when toggle switch connects second group
When terminal and the 3rd group of terminal, mainboard interface connects GPIO interface so that data signal is transmitted between mainboard interface and mainboard.
Compared with prior art, mainboard interface of the present utility model is provided with toggle switch, and first is connected by toggle switch
Group terminal and Second terminal or second group of terminal of connection and the 3rd group of terminal, so as to select connection RS232 interface or GPIO to connect
Mouthful so that mainboard interface simultaneously can the rs 232 serial interface signal of compatible RS232 interface and the data signal of GPIO interface, save simultaneously
The space-consuming of mainboard.
Specifically, the 3rd group of resistance R that O ohms are also associated between terminal and toggle switch.
Using such scheme, the resistance of O ohms is also associated between terminal and toggle switch at the 3rd group, can be ensured
The data signal of GPIO interface does not affect the serial signal of RS232 interface, and stability is strong, and compatibility is good.
Specifically, the GPIO interface uses IT8783 chips.
Specifically, the RS232 interface is DB-9 RS232 interface.
Refer to shown in Fig. 1-2, in this specific embodiment, increase RS232 serial signals simultaneously on computer motherboard
With GPIO data signals, mainboard interface is provided with 24 terminals, and every 8 terminals are divided into first group of terminal, Second terminal as one group
With the 3rd group of terminal, wherein mainboard interface is wire jumper interface, and then set JP_COM2_SEL1 in mainboard interface three stir
Switch, first group of terminal are JA1-JH1, and second group of terminal is JA2-JH2, and the 3rd group of terminal is JA3-JH3, the of toggle switch
One correspondence, first group of terminal, the corresponding second group of terminal of second, the 3rd group of terminal of the 3rd correspondence；When toggle switch is arranged on
First with second when, while connect first group of terminal and second group of terminal, the function of mainboard interface is RS232 interface, energy
Enough transmit serial signal；When toggle switch is arranged on second and the 3rd, while connect second group of terminal and the 3rd group of end
Son, the function of mainboard interface is GPIO interface, can transmit data signal.
Embodiment of above is only that preferred embodiment of the present utility model is described, not to the utility model
Scope be defined, on the premise of the utility model design spirit is not departed from, this area ordinary skill technical staff to this
The various modifications and improvement that the technical scheme of utility model is made, the guarantor that claims of the present utility model determine all should be fallen into
In the range of shield.
Claims (4)
1. a kind of compatible RS232 and GPIO semiotic functions computer interface, including mainboard interface, it is characterised in that：The master
Plate interface includes first group of terminal, Second terminal and the 3rd group of terminal, first group of terminal, Second terminal and the 3rd group of terminal
8 terminals are respectively equipped with, the mainboard interface is wire jumper interface, and the mainboard interface is provided with toggle switch, described to stir out
Connection connects first group of terminal and Second terminal or second group of terminal of connection and the 3rd group of terminal, first group of terminal and the second end
Son connects RS232 interface, and second group of terminal and the 3rd group of terminal connect GPIO interface.
2. a kind of compatible RS232 according to claim 1 and GPIO semiotic functions computer interface, it is characterised in that：
The 3rd group of resistance that O ohms are also associated between terminal and toggle switch.
3. a kind of compatible RS232 according to claim 1 and GPIO semiotic functions computer interface, it is characterised in that：
The GPIO interface uses IT8783 chips.
4. a kind of compatible RS232 according to claim 1 and GPIO semiotic functions computer interface, it is characterised in that：
The RS232 interface is DB-9 RS232 interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720808924.3U CN206907018U (en) | 2017-07-06 | 2017-07-06 | Compatible RS232 and GPIO semiotic functions a kind of computer interface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720808924.3U CN206907018U (en) | 2017-07-06 | 2017-07-06 | Compatible RS232 and GPIO semiotic functions a kind of computer interface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206907018U true CN206907018U (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720808924.3U Active CN206907018U (en) | 2017-07-06 | 2017-07-06 | Compatible RS232 and GPIO semiotic functions a kind of computer interface |
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| CN (1) | CN206907018U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107133187A (en) * | 2017-07-06 | 2017-09-05 | 深圳市德航智能技术有限公司 | Compatible RS232 and GPIO semiotic functions a kind of computer interface |
-
2017
- 2017-07-06 CN CN201720808924.3U patent/CN206907018U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107133187A (en) * | 2017-07-06 | 2017-09-05 | 深圳市德航智能技术有限公司 | Compatible RS232 and GPIO semiotic functions a kind of computer interface |
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