CN1129847C - Computer system and method for outputting system error signal from display port - Google Patents
Computer system and method for outputting system error signal from display port Download PDFInfo
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- CN1129847C CN1129847C CN 00104781 CN00104781A CN1129847C CN 1129847 C CN1129847 C CN 1129847C CN 00104781 CN00104781 CN 00104781 CN 00104781 A CN00104781 A CN 00104781A CN 1129847 C CN1129847 C CN 1129847C
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Abstract
The present invention relates to a method for outputting system error signals from an output port of a display. By using the method, when a computer system is tested, the system error signals are output through a connection port of the display, and thus, problems caused by that an external testing line or equipment can not be connected with a computer system are solved.
Description
Technical field
The present invention is about a kind of computer system and from the method for display delivery outlet output with the system errors signal.
Background technology
At existing computer system (notebook type, desktop computer ... Deng) in the framework, carry out the test error signal that test process produced or (for example test the mistake display lamp number, the conversion of signals of sending by delivery outlet 80H gets the cresset demonstration), must be via docking station (docking station), mouthful reproducer (port replicator) or parallel/serial port (parallel/serial port), be connected to external testing circuit or equipment, misused so that show for removing.
Yet, the trend of following computer system design except trend towards light, thin, short, little, further manage various traditional connectors are merged or give up,, reach " zero leaves over " purpose (Legacy-free) with being connected of simplified system and peripheral device; The appearance and the application of USB (universal serial bus) for example, are arranged ... Deng.Therefore, following computer system may no longer be equipped with above-mentioned connector (as parallel/serial port ... Deng all disappearing); Thus, when later on computer system being tested, because external testing circuit or equipment can't be connected with above-mentioned computer system, thus also can't also be shown by the acceptance test error signal, so that the usefulness of debug to be provided.
Because computer system must dispose display, that is display port still can continue to exist, so if can will test error signal by display port exports to external testing circuit or equipment, promptly can address the above problem.
Summary of the invention
In view of this, a purpose of the present invention provides a kind of method of signal output, allows computer system can pass through display port, and the system errors signal is exported.
Another object of the present invention provides a kind of computer system, and it uses method provided by the present invention, can by display port the system errors signal be exported when testing.
In order to reach above-mentioned purpose, the method from the display port outputting system error signal that the present invention proposes comprises: at first from the signal wire of display port, select required idle signal line in advance; When said system being tested, the error signal that corresponding its test result is produced is coupled to above-mentioned idle signal line respectively again; And
One testing apparatus is provided.Wherein, when said system was tested, above-mentioned testing apparatus was by aforementioned display device connector and being connected with said system, receiving the test error signal on the above-mentioned idle signal line, and above-mentioned error signal carried out conversion process.
In order to reach above-mentioned purpose, the computer system that the present invention proposes comprises: the main frame body at least; The control wafer group; Display control unit; And display port is in order to be connected with a display device.Special little being of computer system: above-mentioned display control unit is by first signal line group of aforementioned display device connector, and the action of control aforementioned display device; Be not used for controlling the idle signal line group of aforementioned display device in the aforementioned display device connector, couple the error signal of being sent by above-mentioned control wafer group by above-mentioned display control unit.Wherein, when above-mentioned computer system is tested,, above-mentioned error signal is exported to handle by the idle signal line group of aforementioned display device connector.
According to method of the present invention and computer system, wherein, above-mentioned error signal is to be coupled to above-mentioned idle signal line by a switch controlling device; When said system connects display, the not conducting of above-mentioned switch controlling device, above-mentioned error signal can't supply on the idle signal line; When display was detached by said system, above-mentioned switch controlling device conducting supplied on the idle signal line above-mentioned error signal.Again, above-mentioned switch controlling device has a control end; When said system did not connect display, bias voltage had one first current potential on the above-mentioned control end, and makes above-mentioned switch controlling device conducting; When said system connected display, the bias voltage on the above-mentioned control end became one second current potential by first current potential, and above-mentioned switch controlling device is closed.
According to first aspect present invention, a kind of method from display port output computer system error signal is characterized in that, comprising:
From the signal wire of aforementioned display device connector, select required idle signal line;
When above-mentioned computer system was tested, the error signal that corresponding its test result produces was coupled to above-mentioned idle signal line respectively; And
One testing apparatus is provided, and when above-mentioned computer system was tested, above-mentioned testing apparatus was connected with above-mentioned computer system by the aforementioned display device connector, receiving the error signal on the above-mentioned idle signal line, and above-mentioned error signal was carried out conversion process,
Above-mentioned error signal is coupled to above-mentioned idle signal line by a switch controlling device; When above-mentioned computer system connects display, the not conducting of above-mentioned switch controlling device, above-mentioned error signal can't be supplied on the idle signal line; When display when above-mentioned computer system detaches, above-mentioned switch controlling device conducting is supplied on the above-mentioned idle signal line above-mentioned error signal.
According to second aspect present invention, a kind of computer system can comprise: the main frame body at least by display port with the output of computer system error signal when testing; The control wafer group; Display control unit; And display port is in order to be connected with a display device;
It is characterized in that above-mentioned display control unit is controlled the action of aforementioned display device by first signal line group of aforementioned display device connector; Be not used for controlling the idle signal line group of aforementioned display device in the aforementioned display device connector, couple the error signal of sending from above-mentioned control wafer group by above-mentioned display control unit;
Wherein, when above-mentioned computer system is tested, by the idle signal line group of aforementioned display device connector, with the output of above-mentioned error signal handling,
Above-mentioned computer system further comprises a switch controlling device, and its input end receives above-mentioned error signal, output terminal is coupled to above-mentioned idle signal line group; Wherein, when above-mentioned computer system connects display, the not conducting of above-mentioned switch controlling device, above-mentioned error signal can't be by the connector output of aforementioned display device; When display when above-mentioned computer system detaches, above-mentioned switch controlling device conducting makes above-mentioned error signal be able to export by the aforementioned display device connector.
Description of drawings
For above-mentioned purpose of the present invention, characteristic and advantage can be become apparent, preferred embodiment cited below particularly, and cooperate appended accompanying drawing, be described below in detail:
Fig. 1 represents the configuration diagram of computer system of the present invention; And
Fig. 2 represents the arrangement plan of display port signal of computer system of the present invention and the arrangement plan when testing thereof.
Embodiment
Symbol description:
1～computer system; 10～peripheral device; 12～control wafer group; 14～display card; 16～display port; 18～display; S1～signal line group; S2～idle signal line group; 24～switch controlling device; E1, E2, E3～test error signal; 30～testing apparatus; 32～coupling arrangement; 34～change-over circuit; 36～message display; 38～test circuit; C～control end; V～power supply node; 11～CPU.
Embodiment:
Fig. 1 represents the configuration diagram of computer system 1 of the present invention (for example be notebook computer, but be not limited to this), comprises at least: host apparatus (comprises CPU11, peripheral device 10, reaches display card 14 ... Deng); Control wafer group 12; And display port 16 is in order to be connected with a display 18 (for example being LCD).Wherein, computer system 1 of the present invention is utilized the signal line group S1 of above-mentioned display card 14 by aforementioned display device connector 16, the action of control aforementioned display device 18.The idle signal line group S2 that is not used for controlling aforementioned display device 18 by above-mentioned display card 14 in the aforementioned display device connector 16 couples the error signal of sending from above-mentioned control wafer group 12; Above-mentioned error signal directly connects or is connected to above-mentioned signal line group S2 by a switch controlling device (not shown in Fig. 1).
When computer system 1 was carried out test, the error signal that corresponding test result is produced by above-mentioned control wafer group 12 can be handled for proving installation or equipment by the idle signal line group S2 output of aforementioned display device connector 16.
Fig. 2 represents the arrangement plan of display port 16 signal wires of computer system 10 and the arrangement plan when testing thereof; Wherein, computer system 10 is only illustrated the device of its part; For example, display port 16, switch controlling device 24.In this embodiment, aforementioned display device connector 16 has 15 signal wires (or pin pin), its pin position of numeral that figure hollow core point is other, and the pin position of part also indicates the signal name that it transmitted.The 4th, 9,10 pin positions of display port 16 do not allow display card use with the control display, so be the idle signal line of display port 16; Other pin position signals are coupled to display card (not shown).
Method from display port 16 outputting system error signals of the present invention comprises the steps.At first, in the signal wire by display port 16, select required idle signal line; In this embodiment, the signal wire of the 4th, 9,10 pin positions of selection display port 16 is as the idle signal line.
When above-mentioned computer system 1 was tested, the error signal that corresponding its test result is produced was E1, E2, E3.So, allow above-mentioned error signal E1, E2, E3 be coupled to the 4th, 9,10 pin position signal wires of aforementioned display device connector 16 respectively by switch controlling device 24.The control end C of above-mentioned switch controlling device 24 is coupled to the 11st a pin position that the power supply node V and the aforementioned display device connector 16 of first current potential be provided.
When above-mentioned computer system 1 is tested, the 11st pin position of aforementioned display device connector 16 is suspension joint (not connecting display), enemy and first current potential can come across the control end C of above-mentioned switch controlling device 24, error signal E1, E2, E3 drive above-mentioned switch controlling device 24 conductings, so can export by the 4th, 9,10 signal stitch positions of aforementioned display device connector 16.When above-mentioned computer system 1 connects the display normal operation, the 11st pin position of aforementioned display device connector 16 is subjected to the control of display interior circuit, make second current potential come across the control end C of above-mentioned switch controlling device 24, allow above-mentioned switch controlling device 24 close, so error signal E1, E2, E3 and aforementioned display device are isolated, in order to avoid influence the running of display.
Testing apparatus 30 for test provides comprises: coupling arrangement 32, and the pin position is corresponding to aforementioned display device connector 16; Change-over circuit 34; Message display 36; And test circuit 38.
Above-mentioned testing apparatus 30 is connected with above-mentioned computer system 1 with aforementioned display device connector 16 by coupling arrangement 32.When above-mentioned computer system 1 is tested, above-mentioned switch controlling device 24 conductings, error signal E1, E2, E3 be by the 4th, 9, the 10 signal stitch positions output of aforementioned display device connector 16, by change-over circuit 34, and test circuit 38 received.Above-mentioned change-over circuit 34 for example is displacement working storage, serial/parallel capable converter ... Deng, E1, E2, E3 error signal are carried out particular conversion, (for example: the display that demoder cooperates 7 n segment display ns to be constituted by message display 36 ... Deng) shown.Above-mentioned test circuit 38 also can carry out particular procedure at the E1 that is received, E2, E3 error signal, and feedback control signal (not shown) is to above-mentioned computer system 1, to make other necessary processing.
As shown in the above description, according to method of the present invention, computer system can be when testing, and with the output of system errors signal, having solved external testing circuit or equipment can't be connected the problem that is caused with above-mentioned computer system by display port.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limiting the present invention, anyly is familiar with this operator, without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention should be with being as the criterion that appended claims defines.
Claims (4)
1. the method from display port output computer system error signal is characterized in that, comprising:
From the signal wire of aforementioned display device connector, select required idle signal line;
When above-mentioned computer system was tested, the error signal that corresponding its test result produces was coupled to above-mentioned idle signal line respectively; And
One testing apparatus is provided, and when above-mentioned computer system was tested, above-mentioned testing apparatus was connected with above-mentioned computer system by the aforementioned display device connector, receiving the error signal on the above-mentioned idle signal line, and above-mentioned error signal was carried out conversion process,
Above-mentioned error signal is coupled to above-mentioned idle signal line by a switch controlling device; When above-mentioned computer system connects display, the not conducting of above-mentioned switch controlling device, above-mentioned error signal can't be supplied on the idle signal line; When display when above-mentioned computer system detaches, above-mentioned switch controlling device conducting is supplied on the above-mentioned idle signal line above-mentioned error signal.
2. the method for claim 1 is characterized in that, above-mentioned switch controlling device has a control end; When above-mentioned computer system did not connect display, bias voltage had one first current potential on the above-mentioned control end, made above-mentioned switch controlling device conducting; When above-mentioned computer system connected display, the bias voltage on the above-mentioned control end became one second current potential from first current potential, and above-mentioned switch controlling device is closed.
3. a computer system can comprise: the main frame body at least by display port with the output of computer system error signal when testing; The control wafer group; Display control unit; And display port is in order to be connected with a display device;
It is characterized in that above-mentioned display control unit is controlled the action of aforementioned display device by first signal line group of aforementioned display device connector; Be not used for controlling the idle signal line group of aforementioned display device in the aforementioned display device connector, couple the error signal of sending from above-mentioned control wafer group by above-mentioned display control unit;
Wherein, when above-mentioned computer system is tested, by the idle signal line group of aforementioned display device connector, with the output of above-mentioned error signal handling,
Above-mentioned computer system further comprises a switch controlling device, and its input end receives above-mentioned error signal, output terminal is coupled to above-mentioned idle signal line group; Wherein, when above-mentioned computer system connects display, the not conducting of above-mentioned switch controlling device, above-mentioned error signal can't be by the connector output of aforementioned display device; When display when above-mentioned computer system detaches, above-mentioned switch controlling device conducting makes above-mentioned error signal be able to export by the aforementioned display device connector.
4. computer system as claimed in claim 3 is characterized in that above-mentioned switch controlling device has a control end; When above-mentioned computer system did not connect display, bias voltage had one first current potential on the above-mentioned control end, made above-mentioned switch controlling device conducting; When above-mentioned computer system connected display, the bias voltage on the above-mentioned control end became one second current potential from first current potential, and above-mentioned switch controlling device is closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00104781 CN1129847C (en) | 2000-03-21 | 2000-03-21 | Computer system and method for outputting system error signal from display port |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00104781 CN1129847C (en) | 2000-03-21 | 2000-03-21 | Computer system and method for outputting system error signal from display port |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1314636A CN1314636A (en) | 2001-09-26 |
| CN1129847C true CN1129847C (en) | 2003-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 00104781 Expired - Fee Related CN1129847C (en) | 2000-03-21 | 2000-03-21 | Computer system and method for outputting system error signal from display port |
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| CN (1) | CN1129847C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050084097A1 (en) * | 2003-10-16 | 2005-04-21 | Tien-Shin Ho | Apparatus and method for calculatingtkip sbox value |
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2000
- 2000-03-21 CN CN 00104781 patent/CN1129847C/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN1314636A (en) | 2001-09-26 |
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Granted publication date: 20031203 Termination date: 20130321 |