CN204705993U - USB consolidates keyboard mouse controller - Google Patents
USB consolidates keyboard mouse controller Download PDFInfo
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- CN204705993U CN204705993U CN201520445764.1U CN201520445764U CN204705993U CN 204705993 U CN204705993 U CN 204705993U CN 201520445764 U CN201520445764 U CN 201520445764U CN 204705993 U CN204705993 U CN 204705993U
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- interface
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Abstract
The utility model particularly relates to a USB consolidates keyboard mouse controller. The USB reinforced keyboard and mouse controller comprises an 8051 single chip microcomputer, a CPLD chip, a keyboard array interface, a mouse interface, a single USB interface and a keyboard lamp interface, wherein the CPLD chip, the keyboard array interface, the single USB interface and the keyboard lamp interface are all connected to the 8051 single chip microcomputer, and the mouse interface is connected to the CPLD chip. This USB consolidates keyboard mouse controller, the design is simple, convenient to use, and is firm durable, can realize keyboard array button scanning, and data can be received and convert USB data format output into with USB format output to the PS 2 mouse data of input, and the USB data after the conversion can also be exported with the same physical interface of keyboard data.
Description
Technical field
The utility model relates to the aided design techniques field of computing machine, particularly a kind of USB reinforced keyboard mouse controller.
Background technology
General reinforced keyboard, mouse are connected with mainboard control chip by PS/2 interface, namely special PS/2 control chip, catch keyboard signal and export, and catch mouse signal and export.
PS/2 interface is current modal mouse interface, is the patent of IBM Corporation at first, is commonly called as " osculum ".This is the special purpose interface of a kind of mouse and keyboard, is a kind of round interface of 6 pins.But mouse only uses 4 pin transmission data and power supplies wherein, and all the other 2 is empty pin.The transfer rate of PS/2 interface is slightly faster than com interface, and is the standard interface of ATX mainboard, is one of interface be most widely used at present.
Keyboard and mouse can use PS/2 interface, but according to PC'99 color specification, mouse takies light green color interface usually, keyboard grabbing purple interface.Also can judge from the relative position of PS/2 interface in addition: near mainboard PCB is keyboard interface, and above it is mouse interface.Although it seems that the principle of work of the two is identical from stitch definition above, these two interfaces still can not mixed insertion, and this is determined in the inner different signal definition of computer by them.
The feature of USB interface is very outstanding: speed is fast, compatibility is good, do not account for interruption, can be connected in series, support hot plug etc., so nowadays have many printers, scanner, digital camera, digital camera, MP3 player, MODEM etc. all to bring into use USB as interface modes.Therefore, USB interface replacement PS/2 interface just progressively.But computing machine bottom hardware more improves the support of PS/2 interface, if therefore computer runs into some fault, use the keyboard compatibility of PS/2 interface more better.In addition, USB keyboard can only input at most 6 keys simultaneously and add 2 function keys, and part PS/2 keyboard just can input the even all keys of ten multikeys (being commonly referred to as N-key rollover or NKRO) simultaneously.Therefore, USB interface cannot replace PS/2 interface completely.
Along with user improves constantly the requirement of machine performance, the competition of reinforcing product is also more and more fierce.The utility model proposes a kind of USB reinforced keyboard mouse controller.
Summary of the invention
The utility model in order to make up the defect of prior art, provide a kind of can realize inputting keyboard and PS/2 mouse data receive and the USB reinforced keyboard mouse controller that regulates of the button being converted into usb data formatted output.
The utility model is achieved by the following technical solution:
A kind of USB reinforced keyboard mouse controller, it is characterized in that: comprise 8051 single-chip microcomputers, CPLD chip, keyboard array interface, mouse interface, single USB interface and keyboard light interface, described CPLD chip, keyboard array interface, single USB interface, keyboard light interface is all connected to 8051 single-chip microcomputers, and described mouse interface is connected to CPLD chip.
Described 8051 single-chip microcomputers are also connected with, single-chip microcomputer debugging interface, and described CPLD chip is also connected with CPLD debugging interface.
Described CPLD chip is connected to 8051 single-chip microcomputers by SMBUS line, described keyboard array interface is connected to 8051 single-chip microcomputers by keyboard array line, described single USB interface is connected to 8051 single-chip microcomputers by USB line, and described keyboard light interface is connected to 8051 single-chip microcomputers by LED signal line.
Described mouse interface is PS/2 interface.
The beneficial effects of the utility model are: this USB reinforced keyboard mouse controller, simplicity of design, easy to use, firm and durable, can realize keyboard array key scan, data are with USB formatted output, and can receive the PS/2 mouse data of input and be converted into usb data formatted output, the usb data after conversion can also export with keyboard data Same Physical interface.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present utility model.This USB reinforced keyboard mouse controller, comprise 8051 single-chip microcomputers, CPLD chip, keyboard array interface, mouse interface, single USB interface and keyboard light interface, described CPLD chip, keyboard array interface, single USB interface, keyboard light interface is all connected to 8051 single-chip microcomputers, and described mouse interface is connected to CPLD chip.
Described 8051 single-chip microcomputers are also connected with, single-chip microcomputer debugging interface, and described CPLD chip is also connected with CPLD debugging interface.
Described CPLD chip is connected to 8051 single-chip microcomputers by SMBUS line, described keyboard array interface is connected to 8051 single-chip microcomputers by keyboard array line, described single USB interface is connected to 8051 single-chip microcomputers by USB line, and described keyboard light interface is connected to 8051 single-chip microcomputers by LED signal line.
Described mouse interface is PS/2 interface.
This USB reinforced keyboard mouse controller, simplicity of design, easy to use, firm and durable, can realize keyboard array key scan, data are with USB formatted output, and can receive the PS/2 mouse data of input and be converted into usb data formatted output, the usb data after conversion can also export with keyboard data Same Physical interface.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445764.1U CN204705993U (en) | 2015-06-26 | 2015-06-26 | USB consolidates keyboard mouse controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520445764.1U CN204705993U (en) | 2015-06-26 | 2015-06-26 | USB consolidates keyboard mouse controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204705993U true CN204705993U (en) | 2015-10-14 |
Family
ID=54285593
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520445764.1U Expired - Lifetime CN204705993U (en) | 2015-06-26 | 2015-06-26 | USB consolidates keyboard mouse controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204705993U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105740192A (en) * | 2016-01-28 | 2016-07-06 | 山东超越数控电子有限公司 | PS2 interface keyboard/mouse hot plug system and realization method thereof |
-
2015
- 2015-06-26 CN CN201520445764.1U patent/CN204705993U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105740192A (en) * | 2016-01-28 | 2016-07-06 | 山东超越数控电子有限公司 | PS2 interface keyboard/mouse hot plug system and realization method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230425 Address after: 250000 building S02, No. 1036, Langchao Road, high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Inspur Scientific Research Institute Co.,Ltd. Address before: No. 1036, Shandong high tech Zone wave road, Ji'nan, Shandong Patentee before: INSPUR GROUP Co.,Ltd. |