CN102937885B - A kind of method switching display channel in Godson two-way blade server system - Google Patents
A kind of method switching display channel in Godson two-way blade server system Download PDFInfo
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- CN102937885B CN102937885B CN201210424355.4A CN201210424355A CN102937885B CN 102937885 B CN102937885 B CN 102937885B CN 201210424355 A CN201210424355 A CN 201210424355A CN 102937885 B CN102937885 B CN 102937885B
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Abstract
The invention discloses a kind of method switching display channel in Godson two-way blade server system, belonging to domestic Godson CPU server field technology, its structure is the management module that rgb signal and VGA row field signal are connected to Godson two-way blade server system by the mainboard of each Godson two-way blade server by backboard；The mainboard front panel of each Godson two-way blade server is provided with a display channel switch key, display channel switch key is connected to the latch of the mainboard of Godson two-way blade server, the output of latch is connected to I2C and turns on the I/O port of I/O chip, the I2C that management module is connected to each Godson two-way blade server by I2C extended chip turns on the I2C mouth of I/O chip, and management module connects display.The method switching display channel in a kind of Godson two-way blade server system of the present invention, has the features such as reasonable in design, easy and simple to handle, easy to use, controllability high.
Description
Technical field
The present invention relates to a kind of domestic Godson CPU server technology field, a kind of method specifically switching display channel in Godson two-way blade server system.
Background technology
This year is along with the development of domestic Godson CPU, the server adopting domestic Godson CPU is also born, and application will be started gradually in some special industries, domestic Loongson processor is because of CPU that it is entirely autonomous intellectual property, and have its low-power consumption, safely controllable property advantages of higher, some special industry has significantly high using value, adopt the server of domestic Loongson processor also by progressively expanded application, particularly in highdensity blade server field.
Summary of the invention
The technical assignment of the present invention is to provide a kind of method switching display channel in easy and simple to handle, easy to use, a kind of Godson two-way blade server system that controllability is high.
The technical assignment of the present invention realizes in the following manner, and including Godson two-way blade server system, rgb signal and VGA row field signal are connected to the management module of Godson two-way blade server system by the mainboard of each Godson two-way blade server by backboard；The mainboard front panel of each Godson two-way blade server is provided with a display channel switch key, display channel switch key is connected to the latch of the mainboard of Godson two-way blade server, the output of latch is connected to I2C and turns on the I/O port of I/O chip, the I2C that management module is connected to each Godson two-way blade server by I2C extended chip turns on the I2C mouth of I/O chip, and management module connects display；Concretely comprise the following steps:
(1), management module turns the state of I/O chip always at the I2C of each Godson two-way mainboard of blade server of poll；
(2), when certain Godson two-way blade server needs switching display channel, then triggering display channel switch key, latch can will trigger signal latch, and exports the I/O port turning I/O chip to I2C；
(3), management module detect that the I2C of mainboard of that Godson two-way blade server turns the I/O chip I/O port level state that is connected with latch and there occurs change, just display channel is switched to current channel；
(4), management module is opened the mainboard of current Godson two-way blade server towards the rgb signal and the output of VGA row field signal that manage module, and is displayed on the display by connection；
(5), afterwards, the mainboard I2C of the management module current Godson two-way blade server of change turns the I/O port level state of I/O chip, the mainboard latches state of current Godson two-way blade server is disposed, it is simple to other Godson two-way mainboard of blade servers follow-up display passage switching.
Latch adopts 74LCX74 chip.
I2C turns I/O chip and adopts PCA9555 chip.
Management module is connected by I2C bus with I2C extended chip, and the I2C mouth that I2C extended chip turns I/O chip by I2C bus with I2C is connected.
The method switching display channel in a kind of Godson two-way blade server system of the present invention, has reasonable in design, easy and simple to handle, easy to use, controllability high, thus, have good value for applications.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Accompanying drawing 1 is the structured flowchart of a kind of method switching display channel in Godson two-way blade server system.
Detailed description of the invention
The method switching display channel with reference to Figure of description and specific embodiment in a kind of Godson two-way blade server system to the present invention is described in detail below.
Embodiment:
A kind of method switching display channel in the Godson two-way blade server system of the present invention, its structure includes Godson two-way blade server system, and rgb signal and VGA row field signal are connected to the management module of Godson two-way blade server system by the mainboard of each Godson two-way blade server by backboard；The mainboard front panel of each Godson two-way blade server is provided with a display channel switch key, display channel switch key is connected to the latch of the mainboard of Godson two-way blade server, the output of latch is connected to I2C and turns on the I/O port of I/O chip, the I2C that management module is connected to each Godson two-way blade server by I2C extended chip turns on the I2C mouth of I/O chip, and management module connects display；Concretely comprise the following steps:
(1), management module turns the state of I/O chip always at the I2C of each Godson two-way mainboard of blade server of poll；
(2), when certain Godson two-way blade server needs switching display channel, then triggering display channel switch key, latch can will trigger signal latch, and exports the I/O port turning I/O chip to I2C；
(3), management module detect that the I2C of mainboard of that Godson two-way blade server turns the I/O chip I/O port level state that is connected with latch and there occurs change, just display channel is switched to current channel；
(4), management module is opened the mainboard of current Godson two-way blade server towards the rgb signal and the output of VGA row field signal that manage module, and is displayed on the display by connection；
(5), afterwards, the mainboard I2C of the management module current Godson two-way blade server of change turns the I/O port level state of I/O chip, the mainboard latches state of current Godson two-way blade server is disposed, it is simple to other Godson two-way mainboard of blade servers follow-up display passage switching.
Latch adopts 74LCX74 chip.
I2C turns I/O chip and adopts PCA9555 chip.
Management module is connected by I2C bus with I2C extended chip, and the I2C mouth that I2C extended chip turns I/O chip by I2C bus with I2C is connected.
The method switching display channel in a kind of Godson two-way blade server system of the present invention, except the technical characteristic described in description, is the known technology of those skilled in the art.
Claims (2)
1. the method switching display channel in a Godson two-way blade server system, including Godson two-way blade server system, it is characterised in that rgb signal and VGA row field signal are connected to the management module of Godson two-way blade server system by the mainboard of each Godson two-way blade server by backboard；The mainboard front panel of each Godson two-way blade server is provided with a display channel switch key, display channel switch key is connected to the latch of the mainboard of Godson two-way blade server, the output of latch is connected to I2C and turns on the I/O port of I/O chip, the I2C that management module is connected to each Godson two-way blade server by I2C extended chip turns on the I2C mouth of I/O chip, and management module connects display；Management module is connected by I2C bus with I2C extended chip, and the I2C mouth that I2C extended chip turns I/O chip by I2C bus with I2C is connected；I2C turns I/O chip and adopts PCA9555 chip；Concretely comprise the following steps:
(1), management module turns the state of I/O chip always at the I2C of each Godson two-way mainboard of blade server of poll；
(2), when certain Godson two-way blade server needs switching display channel, then triggering display channel switch key, latch can will trigger signal latch, and exports the I/O port turning I/O chip to I2C；
(3), management module detect that the I2C of mainboard of that Godson two-way blade server turns the I/O chip I/O port level state that is connected with latch and there occurs change, just display channel is switched to current channel；
(4), management module is opened the mainboard of current Godson two-way blade server towards the rgb signal and the output of VGA row field signal that manage module, and is displayed on the display by connection；
(5), afterwards, the mainboard I2C of the management module current Godson two-way blade server of change turns the I/O port level state of I/O chip, the mainboard latches state of current Godson two-way blade server is disposed, it is simple to other Godson two-way mainboard of blade servers follow-up display passage switching.
2. the method switching display channel in a kind of Godson two-way blade server system according to claim 1, it is characterised in that latch adopts 74LCX74 chip.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210424355.4A CN102937885B (en) | 2012-10-31 | 2012-10-31 | A kind of method switching display channel in Godson two-way blade server system |
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| CN201210424355.4A CN102937885B (en) | 2012-10-31 | 2012-10-31 | A kind of method switching display channel in Godson two-way blade server system |
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| CN102937885A CN102937885A (en) | 2013-02-20 |
| CN102937885B true CN102937885B (en) | 2016-07-06 |
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| CN111459429A (en) * | 2020-03-02 | 2020-07-28 | 北京众达精电科技有限公司 | Display input and output switching system based on domestic processor and switching mode thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2594869Y (en) * | 2002-12-11 | 2003-12-24 | 技嘉科技股份有限公司 | Switching test device between image accelerating interface and built-in video processing interface |
| CN2638129Y (en) * | 2003-07-16 | 2004-09-01 | 联想(北京)有限公司 | Mouse, keyboard and display exchanger used in machine group |
| CN101960406A (en) * | 2008-03-08 | 2011-01-26 | 惠普开发有限公司 | Computer monitor with integral KVM switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7769930B2 (en) * | 2007-01-03 | 2010-08-03 | Aten International Co., Ltd. | Keyboard-video-mouse cable having indicator for indicating switching status |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2594869Y (en) * | 2002-12-11 | 2003-12-24 | 技嘉科技股份有限公司 | Switching test device between image accelerating interface and built-in video processing interface |
| CN2638129Y (en) * | 2003-07-16 | 2004-09-01 | 联想(北京)有限公司 | Mouse, keyboard and display exchanger used in machine group |
| CN101960406A (en) * | 2008-03-08 | 2011-01-26 | 惠普开发有限公司 | Computer monitor with integral KVM switch |
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