CN111752771A - USB port test equipment and system - Google Patents
USB port test equipment and system Download PDFInfo
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- CN111752771A CN111752771A CN201910249789.7A CN201910249789A CN111752771A CN 111752771 A CN111752771 A CN 111752771A CN 201910249789 A CN201910249789 A CN 201910249789A CN 111752771 A CN111752771 A CN 111752771A
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- 238000012360 testing method Methods 0.000 title claims abstract description 145
- 210000001503 joint Anatomy 0.000 claims 2
- 238000004891 communication Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 description 12
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- 238000010586 diagram Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2205—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested
- G06F11/221—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing using arrangements specific to the hardware being tested to test buses, lines or interfaces, e.g. stuck-at or open line faults
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/22—Detection or location of defective computer hardware by testing during standby operation or during idle time, e.g. start-up testing
- G06F11/2273—Test methods
Abstract
The embodiment of the invention provides a USB interface test device, which comprises: test interface and USB3.0 interface, wherein: the first end of the test interface is connected with the USB3.0 interface only through a USB3.0 link; the second end of the test interface is provided with a pin for establishing a USB3.0 link and is used for being connected with the USB interface to be tested; and the USB3.0 interface is used for connecting with the USB3.0 equipment. Therefore, the USB3.0 interface is connected with the first end of the test interface only through the USB3.0 link, so that although the communication between the USB interface to be tested and the second end of the test interface can be through the USB2.0 link, the USB3.0 link can only be used for identification when identifying the USB3.0 device, thereby reducing misjudgment on the USB3.0 link state of the USB interface to be tested and improving the test accuracy.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a USB port testing device and a USB port testing system.
Background
The electronic device may be connected to various USB devices through a USB (Universal Serial Bus) interface, and the USB device may provide more expansion functions and storage space for the electronic device, where the commonly used USB devices include USB2.0 devices and USB3.0 devices. In some scenarios, the USB interface needs to be tested to ensure normal use of the USB interface.
In the related art, the method for testing the USB interface generally includes: firstly, a USB2.0 device is accessed to a USB interface to be tested, if the USB2.0 device can be identified, a USB2.0 link of the USB interface to be tested is considered to be normal, then the USB2.0 device is pulled out, a USB3.0 device is accessed to the USB interface to be tested, and if the USB3.0 device can be identified, the USB3.0 link of the USB interface to be tested is considered to be normal.
However, in some cases, the USB2.0 link may also identify the USB3.0 device, and the USB3.0 protocol has a higher transmission bandwidth than the USB2.0 protocol, and if a connection is established with the USB3.0 device through the USB2.0 link, the USB3.0 protocol cannot be applied to transmit data, which results in a decrease in data transmission rate, that is, even in the case of a failure of the USB3.0 link, the method may identify the USB3.0 device through the USB2.0 link, thereby causing a false determination and reducing the accuracy of testing the USB interface.
Disclosure of Invention
Embodiments of the present invention provide a USB port testing device and system, so as to reduce erroneous determination of a 3.0 link state of a USB interface and improve testing accuracy. The specific technical scheme is as follows:
the embodiment of the invention provides a USB interface test device, which comprises: test interface and USB3.0 interface, wherein:
the first end of the test interface is connected with the USB3.0 interface only through a USB3.0 link;
the second end of the test interface is provided with a pin for establishing a USB3.0 link and is used for being connected with the USB interface to be tested;
and the USB3.0 interface is used for connecting with USB3.0 equipment.
Optionally, the pins for establishing the USB3.0 link include: an ultra-high speed receiving differential pair pin, an ultra-high speed transmitting differential pair pin, a power supply return ground pin and a signal return ground pin.
Optionally, the test apparatus further includes: a USB2.0 interface;
the first end of the test interface is connected with the USB2.0 interface only through a USB2.0 link;
the second end of the test interface is also provided with a pin for establishing a USB2.0 link;
and the USB2.0 interface is used for connecting with USB2.0 equipment.
Optionally, the pins for establishing the USB2.0 link include: USB2.0differential pair pin, power return ground pin and signal return ground pin.
Optionally, the test interface is specifically configured to be connected to the USB interface to be tested in a manner of being docked with the USB interface to be tested; or
The USB interface test device is particularly used for being connected with the USB interface to be tested in a cable connection mode.
The embodiment of the invention also provides a USB interface test device, which comprises: test interface and USB3.0 equipment, wherein:
the first end of the test interface is connected with the USB3.0 equipment only through a USB3.0 link;
the second end of the test interface is provided with a pin for establishing a USB3.0 link and is used for being connected with the USB interface to be tested.
Optionally, the pins for establishing the USB3.0 link include: an ultra-high speed receiving differential pair pin, an ultra-high speed transmitting differential pair pin, a power supply return ground pin and a signal return ground pin.
Optionally, the test apparatus further includes: a USB2.0 device;
the first end of the test interface is connected with the USB2.0 equipment only through a USB2.0 link;
the second end of the test interface also has pins for establishing a USB2.0 link.
Optionally, the pins for establishing the USB2.0 link include: USB2.0differential pair pin, power return ground pin and signal return ground pin.
Optionally, the test interface is specifically configured to be connected to the USB interface to be tested in a manner of being docked with the USB interface to be tested; or
The USB interface test device is particularly used for being connected with the USB interface to be tested in a cable connection mode.
The embodiment of the present invention further provides a USB interface testing system, including:
the test equipment comprises the test equipment and the equipment to be tested with the USB interface to be tested;
the test interface of the test equipment is connected with the USB interface to be tested.
The USB port testing device and the USB port testing system provided by the embodiment of the invention comprise a testing interface and a USB3.0 interface in the USB interface testing device, wherein the first end of the testing interface is connected with the USB3.0 interface only through a USB3.0 link, the second end of the testing interface is provided with a pin for establishing the USB3.0 link and is used for being connected with the USB interface to be tested, and the USB3.0 interface is used for being connected with the USB3.0 device. Therefore, the USB3.0 interface is connected with the first end of the test interface only through the USB3.0 link, so that although the communication between the USB interface to be tested and the second end of the test interface can be through the USB2.0 link, the USB3.0 link can only be used for identification when identifying the USB3.0 device, thereby reducing misjudgment on the USB3.0 link state of the USB interface to be tested and improving the test accuracy. Of course, not all of the advantages described above need to be achieved at the same time in the practice of any one product or method of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a USB interface testing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another USB interface testing apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the related art, the method for testing the USB port generally includes: firstly, a USB2.0 device is accessed to a USB interface to be tested, if the USB2.0 device can be identified, a USB2.0 link of the USB interface to be tested is considered to be normal, then the USB2.0 device is pulled out, a USB3.0 device is accessed to the USB interface to be tested, and if the USB3.0 device can be identified, the USB3.0 link of the USB interface to be tested is considered to be normal.
However, in some cases, the USB2.0 link may also identify the USB3.0 device, and the USB3.0 protocol has a higher transmission bandwidth than the USB2.0 protocol, and if a connection is established with the USB3.0 device through the USB2.0 link, the USB3.0 protocol cannot be applied to transmit data, which results in a decrease in data transmission rate, that is, even in the case of a failure of the USB3.0 link, the method may identify the USB3.0 device through the USB2.0 link, thereby causing a false determination and reducing the accuracy of testing the USB interface.
In order to solve the above technical problem, an embodiment of the present invention provides a USB interface test device, where the test device includes: test interface and USB3.0 interface, wherein:
the first end of the test interface is connected with the USB3.0 interface only through a USB3.0 link;
the second end of the test interface is provided with a pin for establishing a USB3.0 link and is used for being connected with the USB interface to be tested;
and the USB3.0 interface is used for connecting with the USB3.0 equipment.
In addition, an embodiment of the present invention provides another USB interface test device, where the test device includes: test interface and USB3.0 equipment, wherein:
the first end of the test interface is connected with the USB3.0 equipment only through a USB3.0 link;
the second end of the test interface is provided with a pin for establishing a USB3.0 link and is used for being connected with the USB interface to be tested.
As can be seen from the above, in the USB interface testing device provided in the embodiment of the present invention, since the USB3.0 interface is connected to the first end of the testing interface only through the USB3.0 link, although the communication between the USB interface to be tested and the second end of the testing interface may be through the USB2.0 link, when the USB3.0 device is identified, the communication can only be identified through the USB3.0 link, so that the misjudgment of the USB3.0 link state of the USB interface to be tested is reduced, and the testing accuracy is improved.
The following describes in detail the USB interface test apparatus provided in the embodiment of the present invention by using a specific embodiment.
As shown in fig. 1, a schematic structural diagram of a USB interface testing device provided in an embodiment of the present invention is shown, where the testing device includes: a test interface 101 and a USB3.0 interface 102, wherein:
the first end of the test interface 101 is connected to the USB3.0 interface 102 only via a USB3.0 link.
The USB3.0 link includes 7 pins, which are SSRX +/SSRX- (SuperSpeed receiver differential pair ), SSTX +/SSTX- (SuperSpeed transmitter differential pair, SuperSpeed transmitter differential pair), VBus (Power ), GND (Ground for Power return), and GND _ in (Ground for signal return), where SSRX +, SSRX-, SSTX +, SSTX-are differential pair signals of the USB3.0 link, and can also implement communication between devices at two ends of the USB3.0 interface.
The second end of the test interface 101 has pins for establishing a USB3.0 link, and is used to connect with a USB interface to be tested.
For example, the USB interface to be tested and the second end of the testing interface 101 of the USB interface testing apparatus may be connected by a cable, or may be directly connected, for example, the second end of the testing interface 101 may be designed into a connector form that can be directly butted with the USB interface to be tested, so as to omit a connecting cable, and make establishing the connection more convenient.
The second end of the test interface 101 may be any Type of interface, such as USB Type a (Standard-a), Type B (Micro-B, Micro Type B), Type C, and the like, and is not limited specifically.
And the USB3.0 interface 102 is used for connecting with the USB3.0 equipment.
For example, the USB3.0 interface 102 of the USB interface testing device may be directly connected to the USB3.0 device, or may be connected to the USB3.0 device through a cable, for example, the USB3.0 interface 102 may be connected to the USB3.0 device through a USB3.0 cable, where the USB3.0 interface 102 may be any Type of interface such as USB Type a, Type B, and Type C. The USB3.0 device can be an external USB flash disk or other external functional devices applying the USB3.0 protocol.
Thus, when the USB interface testing device provided in the embodiment of the present invention is applied to test a USB interface to be tested, first, the USB3.0 interface 102 is connected to an external USB3.0 device, for example, the external USB3.0 device may be a USB disk, then, the USB interface to be tested is connected to the second end of the testing interface 101, if the USB3.0 device connected to the USB3.0 interface 102 can be identified by the USB interface to be tested, it is determined that the USB3.0 link of the USB interface to be tested is normal, and if the USB3.0 device connected to the USB3.0 interface 102 cannot be identified by the USB interface to be tested, it is determined that the USB3.0 link of the USB interface to be tested is not normal.
For example, if the USB3.0 device is an external USB disk and the USB interface to be tested is a USB interface on a computer, if the external USB disk is identified in a computer operating system and data reading and writing operations can be performed on the external USB disk, it may be determined that the USB3.0 device can be identified by the USB interface to be tested, or if the USB3.0 device is an external functional device with a special function, it may be determined that the external functional device can be identified by the USB interface to be tested by automated test software developed by a manufacturer of the external functional device, and the specific limitation is not imposed.
In addition, the USB interface testing device may further include a USB2.0 interface 103, the first end of the testing interface 101 is connected to the USB2.0 interface 103 only through a USB2.0 link, and the second end of the testing interface 101 further has a pin for establishing the USB2.0 link.
The USB2.0 link includes 5 pins, which are D +/D- (USB2.0differential pair ), VBus, GND and GND _ DRAIN, respectively, where D + and D-are differential pair signals of the USB2.0 link, and can also implement communication between two devices at the USB2.0 interface.
And the USB2.0 interface 103 is used for connecting with the USB2.0 equipment.
For example, the USB2.0 interface 103 and the USB2.0 device may be directly connected to each other, or may be connected to each other through a cable, for example, the USB2.0 interface 103 and the USB2.0 device may be connected to each other through a USB2.0 cable, and the USB2.0 interface may be an interface such as USB Type a, Type B, or Type C.
Thus, when the USB interface testing device provided in the embodiment of the present invention is applied to test a USB interface to be tested, the USB2.0 interface 103 may be connected to an external USB3.0 device, for example, the external USB2.0 devices may be USB disks, then the USB interface to be tested is connected to the second end of the testing interface 101, if the USB interface to be tested can identify the USB2.0 device connected to the USB2.0 interface 103, it is determined that the USB2.0 link of the USB interface to be tested is normal, and if the USB interface to be tested cannot identify the USB2.0 device connected to the USB2.0 interface 103, it is determined that the USB2.0 link of the USB interface to be tested is abnormal.
As can be seen from the above, in the USB interface testing method provided in the embodiment of the present invention, since the USB3.0 interface is connected to the first end of the testing interface only through the USB3.0 link, although the communication between the USB interface to be tested and the second end of the testing interface may be through the USB2.0 link, when the USB3.0 device is identified, the communication can only be identified through the USB3.0 link, so that the misjudgment of the USB3.0 link state of the USB interface to be tested is reduced, and the testing accuracy is improved.
As shown in fig. 2, a schematic structural diagram of another USB interface testing apparatus provided in an embodiment of the present invention is shown, where the testing apparatus includes: test interface 201 and USB3.0 device 202, wherein:
the first end of the test interface 201 is connected to the USB3.0 device 202 only via a USB3.0 link.
The USB3.0 link comprises 7 pins which are respectively SSRX +/SSRX-, SSTX +/SSTX-, VBus, GND and GND _ DRAIN, wherein the SSRX +, SSRX-, SSTX + and SSTX-are differential pair signals of the USB3.0 link, and communication between two end devices of the USB3.0 interface can also be realized.
The second end of the test interface 201 has pins for establishing a USB3.0 link, and is used for connecting with a USB interface to be tested.
For example, the USB interface to be tested and the second end of the testing interface 201 of the USB interface testing device may be connected by a cable, or may be directly connected, for example, the second end of the testing interface 201 may be designed into a connector form that can be directly butted with the USB interface to be tested, so as to omit a connecting cable, and make establishing the connection more convenient.
The second end of the test interface 201 may be any Type of interface, such as USB Type a, Type B, and Type C, and is not limited specifically.
Thus, when the USB interface testing device provided by the embodiment of the present invention is used to test a USB interface to be tested, the USB interface to be tested is connected to the second end of the testing interface 201, if the USB interface to be tested can identify the USB3.0 device 202, it is determined that the USB3.0 link of the USB interface to be tested is normal, and if the USB interface to be tested cannot identify the USB3.0 device 202, it is determined that the USB3.0 link of the USB interface to be tested is abnormal.
In addition, the USB interface testing device may further include a USB2.0 device 203, the first end of the testing interface 201 is connected to the USB2.0 interface 203 only through a USB2.0 link, and the second end of the testing interface 201 further has a pin for establishing the USB2.0 link.
The USB2.0 link comprises 5 pins which are respectively D +/D-, VBus, GND and GND _ DRAIN, wherein D + and D-are differential pair signals of the USB2.0 link, and communication between two end devices of the USB2.0 interface can also be realized.
Therefore, when the USB interface testing device provided by the embodiment of the present invention is used to test a USB interface to be tested, it may further determine whether the USB interface to be tested can identify the USB2.0 device 203, if so, it may determine that the USB2.0 link of the USB interface to be tested is normal, and if the USB interface to be tested cannot identify the USB2.0 device 203, it may determine that the USB2.0 link of the USB interface to be tested is abnormal.
As can be seen from the above, in the USB interface testing method provided in the embodiment of the present invention, since the USB3.0 interface is connected to the first end of the testing interface only through the USB3.0 link, although the communication between the USB interface to be tested and the second end of the testing interface may be through the USB2.0 link, when the USB3.0 device is identified, the communication can only be identified through the USB3.0 link, so that the misjudgment of the USB3.0 link state of the USB interface to be tested is reduced, and the testing accuracy is improved.
In another embodiment provided by the present invention, a USB interface test system is further provided, where the system includes the USB interface test device in any one of the above embodiments, and a device under test having a USB interface to be tested, where the test interface of the test device is connected to the USB interface to be tested.
As can be seen from the above, in the USB interface testing system provided in the embodiment of the present invention, since the USB3.0 interface is connected to the first end of the testing interface only through the USB3.0 link, although the communication between the USB interface to be tested and the second end of the testing interface may be through the USB2.0 link, when the USB3.0 device is identified, the communication can only be identified through the USB3.0 link, so that the misjudgment of the USB3.0 link state of the USB interface to be tested is reduced, and the testing accuracy is improved.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the test apparatus embodiment, the description is relatively simple, and reference may be made to some descriptions of the method embodiment for relevant points.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (11)
1. A USB interface test device, the test device comprising: test interface and USB3.0 interface, wherein:
the first end of the test interface is connected with the USB3.0 interface only through a USB3.0 link;
the second end of the test interface is provided with a pin for establishing a USB3.0 link and is used for being connected with the USB interface to be tested;
and the USB3.0 interface is used for connecting with USB3.0 equipment.
2. The device of claim 1, wherein the pin for establishing a USB3.0 link comprises: an ultra-high speed receiving differential pair pin, an ultra-high speed transmitting differential pair pin, a power supply return ground pin and a signal return ground pin.
3. The apparatus of claim 1, wherein the test apparatus further comprises: a USB2.0 interface;
the first end of the test interface is connected with the USB2.0 interface only through a USB2.0 link;
the second end of the test interface is also provided with a pin for establishing a USB2.0 link;
and the USB2.0 interface is used for connecting with USB2.0 equipment.
4. The device of claim 3, wherein the pin for establishing the USB2.0 link comprises: USB2.0differential pair pin, power return ground pin and signal return ground pin.
5. The apparatus of claim 1,
the test interface is specifically used for being connected with the USB interface to be tested in a butt joint mode with the USB interface to be tested; or
The USB interface test device is particularly used for being connected with the USB interface to be tested in a cable connection mode.
6. A USB interface test device, the test device comprising: test interface and USB3.0 equipment, wherein:
the first end of the test interface is connected with the USB3.0 equipment only through a USB3.0 link;
the second end of the test interface is provided with a pin for establishing a USB3.0 link and is used for being connected with the USB interface to be tested.
7. The device of claim 6, wherein the pin for establishing the USB3.0 link comprises: an ultra-high speed receiving differential pair pin, an ultra-high speed transmitting differential pair pin, a power supply return ground pin and a signal return ground pin.
8. The apparatus of claim 6, wherein the test apparatus further comprises: a USB2.0 device;
the first end of the test interface is connected with the USB2.0 equipment only through a USB2.0 link;
the second end of the test interface also has pins for establishing a USB2.0 link.
9. The device of claim 8, wherein the pin for establishing the USB2.0 link comprises: USB2.0differential pair pin, power return ground pin and signal return ground pin.
10. The apparatus of claim 6,
the test interface is specifically used for being connected with the USB interface to be tested in a butt joint mode with the USB interface to be tested; or
The USB interface test device is particularly used for being connected with the USB interface to be tested in a cable connection mode.
11. A USB interface test system, comprising:
the test device of any one of claims 1-10, and a device under test having a USB interface to be tested;
the test interface of the test equipment is connected with the USB interface to be tested.
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|---|---|---|---|
| CN201910249789.7A CN111752771A (en) | 2019-03-29 | 2019-03-29 | USB port test equipment and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910249789.7A CN111752771A (en) | 2019-03-29 | 2019-03-29 | USB port test equipment and system |
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| CN111752771A true CN111752771A (en) | 2020-10-09 |
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