CN105116963A - Method for automatically switching between AIO host mode and display mode - Google Patents
Method for automatically switching between AIO host mode and display mode Download PDFInfo
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- CN105116963A CN105116963A CN201510461290.4A CN201510461290A CN105116963A CN 105116963 A CN105116963 A CN 105116963A CN 201510461290 A CN201510461290 A CN 201510461290A CN 105116963 A CN105116963 A CN 105116963A
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Abstract
The invention particularly relates to a method for automatically switching between an AIO host mode and a display mode. According to the method for automatically switching between the AIO host mode and the display mode, an HDMI IN interface, an EC and a Scalar board are provided, wherein the HDMI IN interface is connected with the Scalar board; the EC is connected to the Scalar board through a Scalar Power circuit and an I2C bus; furthermore, a Pin11 pin of the HDMI IN interface is connected to the EC; a GPIO pin of the Scalar board is connected to the EC; and when the EC detects a Scalar Power signal and a Scalar Ready signal of the Scalar board at the same time, the EC gives a switching instruction to the Scalar board through the I2C bus so as to require to switch from the host mode to the display mode. According to the method for automatically switching between the AIO host mode and the display mode, the automatic switching between the two modes is realized by adopting a manner that two signals participate in the EC and an AND gate is provided, so that the automatic switching between the AIO host mode and the display mode can be realized without an external power button, and the Scalar board can correctly enter the display mode.
Description
Technical field
The present invention relates to integrated computer AIO technical field, particularly a kind of AIO host mode and display mode automatic switching method.
Background technology
Along with reducing of mechanical dimensions, manufacturer computer starts main frame to be integrated in display, thus forms integrated computer (All-In-One), is abbreviated as AIO.AIO compares conventional desktop the advantage that line is few, volume is little, and integrated level is higher, and price also there is no significant change, and shapeable is then stronger, and manufacturer can design the product having individual character.AIO can be described as and notebook and a conventional desktop emerging product line arranged side by side.
Along with epoch, science and technology and the development in market, increasing manufacturer starts to set foot in this field.Integrated computer breaches the image of that heaviness of traditional computer in appearance, and design fashion more, no matter how integrated computer develops, and believes and has instantly attracted the eyeball of hundreds of thousands of subscribers simultaneously.
As a new product form, integrated computer allows people create more feelings of freshness.Also more embodiment this point on product year attribute, integrated computer also can take into account the development trend of notebook industry, also the existing advantage of desktop computer can be beneficial to over, it both can use the platform of notebook, the platform of desktop computer can also be used, the platform that even can mix with both, such as the development in notebook future can be transplanted by integrated computer come completely, but the hard disk of desktop computer can be faster than notebook, integrated computer can be fully inclusive and equitable, very thin Volume design, the little platform that can adopt notebook of volume, both the cost can having enjoyed notebook declines, screen also can design very large simultaneously, and hard disk can use desktop computer product in notebook bottleneck.
Integrated computer compares conventional desktop many advantageous advantages, is first in outward appearance, and integrated computer is brief, the hypostazation of fashion design, more meets modern to household conserve space, aim attractive in appearance.Secondly, integrated computer compares conventional desktop better movability, is convenient to consumer and combines space.Further, the feature such as environmental protection, low-carbon (LC) of integrated computer also meets modern's value orientation very much.In addition, along with numerous IT upstream manufacturer low coverage integrated computer field, be integrated computer and drop into larger research and development energy, allow integrated computer product have qualitative leap, more powerful in performance.
The English full name of HDMI is " HighDefinitionMultimedia ", and Chinese is meant to HDMI (High Definition Multimedia Interface).The benefit of application HDMI is: only need a HDMI wire, just can transmit video-audio signal simultaneously, and unlike needing now many wire rods to connect; Meanwhile, due to without the need to carrying out D/A or analog/digital conversion, higher Voice & Video transmission quality can be obtained.For consumer, HDMI technology can not only provide image quality clearly, and due to audio/video employing same cable, enormously simplify the installation of household audio and video system.
The AIO of current band HDMIIN function is realized by the mode of external key, and intelligent not, increase Material Cost and complete machine arrangement space, information communication is imperfect.
As shown in Figure 1, HDMIIN interface connects Scalar plate to traditional design of operating modes, and EC is connected respectively to Scalar plate by ScalarPower circuit and I2C bus.The default conditions of AIO system are host modes.When there being HDMIINCable to connect HDMIIN interface, user receives the power switch PowerButton button of EC by one, allows EC remove to arouse 3.3V and 1.2VPower of Scalar plate.The 5VPower of HDMIIN interface can deliver to Scalar plate simultaneously, the HPD signal of a high level can be sent after Scalar plate detects this 5VPower to HDMIINSourcePC, tell that Source holds and can carry out TrainingLink now, then SourcePC can send Audio and Video data, enters standby condition after the register of Scalar plate detects these Audio and Video data.DDCLink is successful while, EC can issue orders and to the requirement of Scalar plate, host mode is switched to display mode through I2C bus.
Intelligent not when host mode is transformed into display mode in order to solve AIO, Material Cost is high, and the large and incomplete difficult problem of information communication of complete machine arrangement space, the present invention proposes a kind of AIO host mode and display mode automatic switching method.
Summary of the invention
The present invention, in order to make up the defect of prior art, provides a kind of simple, effective AIO host mode and display mode automatic switching method.
The present invention is achieved through the following technical solutions:
A kind of AIO host mode and display mode automatic switching method, it is characterized in that: comprise HDMIIN interface, EC and Scalar plate, described HDMIIN interface is connected with Scalar plate, described EC is then connected respectively to Scalar plate by ScalarPower circuit and I2C bus, in addition the Pin11 pin of described HDMIIN interface is received EC, Pin11 pin level is pulled upward to 3.3V simultaneously, the GPIO pin of described Scalar plate is connected to EC, GPIO pin level is pulled upward to 3.3V_ScalarPower simultaneously;
When EC detects ScalarPower signal and the ScalarReady signal of Scalar plate simultaneously, EC sends switching command by I2C bus to Scalar plate, requires host mode to be switched to display mode.
Described EC is by ScalarPower circuit for Scalar plate provides 3.3V and 1.2VPower, and described ScalarPower circuit comprises transistor, and described transistor input end connects EC and+3VALW_5S, output terminal connection+3V_5CA_R respectively.
The Pin11 pin of described HDMIIN interface receives EC, when by EC, to detect Pin11 pin be high level state to HDMIIN interface, judge have HDMICable to access, determine the 5VPower of HDMIIN interface to deliver to Scalar plate simultaneously, and then make Scalar plate send ScalarPower signal;
After detecting the 5VPower that HDMIIN interface sends here, described Scalar plate can send the HPD signal of a high level to HDMIIN interface, and be sent to computing machine Source by HDMIIN interface and hold, computing machine Source termination sends Audio and Video data after receiving the HPD signal of this high level, these Audio and Video data are via HDMIIN interface transmit band Scalar plate, ScalarReady signal is sent after the register of described Scalar plate detects these Audio and Video data, and by information feed back to GPIO pin, described GPIO pin obtains a high level, after the ScalarPower signal that EC detects Scalar plate simultaneously and ScalarReady signal, switching command can be sent.
The invention has the beneficial effects as follows: this AIO host mode and display mode automatic switching method, adopt increase by two signals to participate in EC and do and achieve two kinds of patterns with the mode of door and automatically switch, without the need to can be realized the automatic switchover of AIO host mode and display mode by external power switch PowerButton button, can guarantee that Scalar plate is accurate and enter display mode.
Accompanying drawing explanation
Accompanying drawing 1 is traditional AIO host mode and display mode switching method schematic diagram;
Accompanying drawing 2 is AIO host mode of the present invention and display mode automatic switching method schematic diagram.
Embodiment
Accompanying drawing is a kind of specific embodiment of the present invention, and below in conjunction with accompanying drawing, the present invention is described in detail.
This AIO host mode and display mode automatic switching method, comprise HDMIIN interface, EC and Scalar plate, described HDMIIN interface is connected with Scalar plate, described EC is then connected respectively to Scalar plate by ScalarPower circuit and I2C bus, in addition the Pin11 pin of described HDMIIN interface is received EC, Pin11 pin level is pulled upward to 3.3V simultaneously, the GPIO pin of described Scalar plate is connected to EC, GPIO pin level is pulled upward to 3.3V_ScalarPower simultaneously;
When EC detects ScalarPower signal and the ScalarReady signal of Scalar plate simultaneously, EC sends switching command by I2C bus to Scalar plate, requires host mode to be switched to display mode.
Described EC is by ScalarPower circuit for Scalar plate provides 3.3V and 1.2VPower, and described ScalarPower circuit comprises transistor, and described transistor input end connects EC and+3VALW_5S, output terminal connection+3V_5CA_R respectively.
The Pin11 pin of described HDMIIN interface receives EC, when by EC, to detect Pin11 pin be high level state to HDMIIN interface, judge have HDMICable to access, determine the 5VPower of HDMIIN interface to deliver to Scalar plate simultaneously, and then make Scalar plate send ScalarPower signal;
After detecting the 5VPower that HDMIIN interface sends here, described Scalar plate can send the HPD signal of a high level to HDMIIN interface, and be sent to computing machine Source by HDMIIN interface and hold, computing machine Source termination sends Audio and Video data after receiving the HPD signal of this high level, these Audio and Video data are via HDMIIN interface transmit band Scalar plate, ScalarReady signal is sent after the register of described Scalar plate detects these Audio and Video data, and by information feed back to GPIO pin, described GPIO pin obtains a high level, after the ScalarPower signal that EC detects Scalar plate simultaneously and ScalarReady signal, switching command can be sent.
This AIO host mode and display mode automatic switching method, adopt increase by two signals to participate in EC and do and achieve two kinds of patterns with the mode of door and automatically switch, without the need to can be realized the automatic switchover of AIO host mode and display mode by external power switch PowerButton button, can guarantee that Scalar plate is accurate and enter display mode.
Claims (3)
1. an AIO host mode and display mode automatic switching method, it is characterized in that: comprise HDMIIN interface, EC and Scalar plate, described HDMIIN interface is connected with Scalar plate, described EC is then connected respectively to Scalar plate by ScalarPower circuit and I2C bus, in addition the Pin11 pin of described HDMIIN interface is received EC, Pin11 pin level is pulled upward to 3.3V simultaneously, the GPIO pin of described Scalar plate is connected to EC, GPIO pin level is pulled upward to 3.3V_ScalarPower simultaneously;
When EC detects ScalarPower signal and the ScalarReady signal of Scalar plate simultaneously, EC sends switching command by I2C bus to Scalar plate, requires host mode to be switched to display mode.
2. AIO host mode according to claim 1 and display mode automatic switching method, it is characterized in that: described EC by ScalarPower circuit for Scalar plate provides 3.3V and 1.2VPower, described ScalarPower circuit comprises transistor, described transistor input end connects EC and+3VALW_5S, output terminal connection+3V_5CA_R respectively.
3. AIO host mode according to claim 1 and display mode automatic switching method, it is characterized in that: the Pin11 pin of described HDMIIN interface receives EC, when by EC, to detect Pin11 pin be high level state to HDMIIN interface, judge have HDMICable to access, determine the 5VPower of HDMIIN interface to deliver to Scalar plate simultaneously, and then make Scalar plate send ScalarPower signal;
After detecting the 5VPower that HDMIIN interface sends here, described Scalar plate can send the HPD signal of a high level to HDMIIN interface, and be sent to computing machine Source by HDMIIN interface and hold, computing machine Source termination sends Audio and Video data after receiving the HPD signal of this high level, these Audio and Video data are via HDMIIN interface transmit band Scalar plate, ScalarReady signal is sent after the register of described Scalar plate detects these Audio and Video data, and by information feed back to GPIO pin, described GPIO pin obtains a high level, after the ScalarPower signal that EC detects Scalar plate simultaneously and ScalarReady signal, switching command can be sent.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510461290.4A CN105116963A (en) | 2015-07-31 | 2015-07-31 | Method for automatically switching between AIO host mode and display mode |
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| CN201510461290.4A CN105116963A (en) | 2015-07-31 | 2015-07-31 | Method for automatically switching between AIO host mode and display mode |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108920115A (en) * | 2018-06-11 | 2018-11-30 | 山东超越数控电子股份有限公司 | A method of intelligence switching PC mode and display mode |
| CN113053292A (en) * | 2021-03-29 | 2021-06-29 | 联想(北京)有限公司 | First equipment |
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2015
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| CN101714342A (en) * | 2008-08-26 | 2010-05-26 | 乐金显示有限公司 | Liquid crystal display device and driving method thereof |
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Application publication date: 20151202 |