CN204694793U - A kind of hi-speed USB interface proving installation - Google Patents
A kind of hi-speed USB interface proving installation Download PDFInfo
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- CN204694793U CN204694793U CN201520394189.7U CN201520394189U CN204694793U CN 204694793 U CN204694793 U CN 204694793U CN 201520394189 U CN201520394189 U CN 201520394189U CN 204694793 U CN204694793 U CN 204694793U
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Abstract
The utility model relates to a kind of proving installation, a kind of hi-speed USB interface proving installation, comprise power supply input control module, load capacity sampling and testing unit, MCU control unit, usb signal data detecting unit, programmable logic control unit, EEPROM, LED display circuit and first, two crystal oscillating circuits, described power supply input control module is connected with load capacity sampling and testing unit, load capacity sampling and testing unit is connected with MCU control unit by I2C mouth, usb signal data detecting unit is connected with programmable logic control unit, programmable logic control unit is connected with the first crystal oscillating circuit, described EEPROM passes through RA2, RA3 mouth is connected with MCU control unit, second crystal oscillating circuit is connected with MCU control unit by OSC1/OSC2 mouth, described LED display circuit, programmable logic control unit is connected with MCU control unit respectively by I/O mouth.The utility model is easy to carry, and display result is direct, can connect four USB3.0 interfaces simultaneously, meet the measurement of USB3.0 high speed transmission of signals.
Description
Technical field
The utility model relates to a kind of proving installation, more particularly, relates to a kind of hi-speed USB interface proving installation.
Background technology
In the test macro centered by computing machine, USB is widely used in communication electronics field, the device of conventional USB interface velocity test is directed to the test of USB2.0 standard mostly, test rate rests within 200M mostly, can testing apparatus whether connect, the parameter such as the band live pressure of message transmission rate and device.Most proving installation all adopts the mode be connected with PC to test with method of testing simultaneously, should not carry.Along with popularizing of USB3.0 technical standard, the transfer rate of digital signal is constantly accelerated, common USB3 interface comprises power supply and GND, Universal USB 2.0 interface differential signal D+ and D-, add the distinctive hypervelocity digital signal pair of USB3, the transfer rate of standard reaches more than 1Gb/s simultaneously, and existing market is badly in need of a kind of proving installation that can meet high speed data transfer signal, meanwhile, should have can the function such as the bit error rate of Simultaneously test USB interface load capacity and data transmission for this proving installation.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model object is to provide a kind of hi-speed USB interface proving installation.This proving installation is easy to carry, display result directly, the error rate test that can carry out in the test of USB3.0 interface rate, load capacity test, short-circuit test and high-speed transfer process.
In order to realize foregoing invention object, solve problem existing in prior art, the technical scheme that the utility model is taked is: a kind of hi-speed USB interface proving installation, comprise power supply input control module, load capacity sampling and testing unit, MCU control unit, usb signal data detecting unit, programmable logic control unit, EEPROM, LED display circuit and first and second crystal oscillating circuit, described power supply input control module is connected with load capacity sampling and testing unit, and described load capacity sampling and testing unit passes through I
2c mouth is connected with MCU control unit, described usb signal data detecting unit is connected with programmable logic control unit, described programmable logic control unit is connected with the first crystal oscillating circuit, described EEPROM is connected with MCU control unit by RA2, RA3 mouth, described second crystal oscillating circuit is connected with MCU control unit by OSC1/OSC2 mouth, and described LED display circuit, programmable logic control unit are connected with MCU control unit respectively by I/O mouth.
Described usb signal data detecting unit, comprise first, second, third and fourth usb signal input interface circuit, first, second, third and fourth esd protection circuit and first and second USB338 module, a described USB338 module, comprises first and second usb signal receiving circuit and the first usb signal control module; Described 2nd USB338 module, comprises third and fourth usb signal receiving circuit and the second usb signal control module; First, second, third and fourth usb signal input interface circuit described is connected with first, second, third and fourth esd protection circuit and first, second, third and fourth usb signal receiving circuit respectively; first and second usb signal receiving circuit described is connected with the first usb signal control module respectively; third and fourth usb signal receiving circuit described is connected with the second usb signal control module respectively, and first and second usb signal control module described is connected with programmable logic control unit respectively.
The utility model beneficial effect is: a kind of hi-speed USB interface proving installation, comprise power supply input control module, load capacity sampling and testing unit, MCU control unit, usb signal data detecting unit, programmable logic control unit, EEPROM, LED display circuit and first and second crystal oscillating circuit, described power supply input control module is connected with load capacity sampling and testing unit, and described load capacity sampling and testing unit passes through I
2c mouth is connected with MCU control unit, described usb signal data detecting unit is connected with programmable logic control unit, described programmable logic control unit is connected with the first crystal oscillating circuit, described EEPROM is connected with MCU control unit by RA2, RA3 mouth, described second crystal oscillating circuit is connected with MCU control unit by OSC1/OSC2 mouth, and described LED display circuit, programmable logic control unit are connected with MCU control unit respectively by I/O mouth.Compared with the prior art, the utility model is easy to carry, and display result is direct, can connect four USB3.0 interfaces simultaneously, meet the measurement of USB3.0 high speed transmission of signals.
Accompanying drawing explanation
Fig. 1 is the utility model theory diagram.
Fig. 2 is the usb signal data detecting unit theory diagram in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of hi-speed USB interface proving installation, comprise power supply input control module, load capacity sampling and testing unit, MCU control unit, usb signal data detecting unit, programmable logic control unit, EEPROM, LED display circuit and first and second crystal oscillating circuit, described power supply input control module is connected with load capacity sampling and testing unit, and described load capacity sampling and testing unit passes through I
2c mouth is connected with MCU control unit, described usb signal data detecting unit is connected with programmable logic control unit, described programmable logic control unit is connected with the first crystal oscillating circuit, described EEPROM is connected with MCU control unit by RA2, RA3 mouth, described second crystal oscillating circuit is connected with MCU control unit by OSC1/OSC2 mouth, and described LED display circuit, programmable logic control unit are connected with MCU control unit respectively by I/O mouth.
As shown in Figure 2, described usb signal data detecting unit, comprise first, second, third and fourth usb signal input interface circuit, first, second, third and fourth esd protection circuit and first and second USB338 module, a described USB338 module, comprises first and second usb signal receiving circuit and the first usb signal control module; Described 2nd USB338 module, comprises third and fourth usb signal receiving circuit and the second usb signal control module; First, second, third and fourth usb signal input interface circuit described is connected with first, second, third and fourth esd protection circuit and first, second, third and fourth usb signal receiving circuit respectively; first and second usb signal receiving circuit described is connected with the first usb signal control module respectively; third and fourth usb signal receiving circuit described is connected with the second usb signal control module respectively, and first and second usb signal control module described is connected with programmable logic control unit respectively.The transfer rate of described usb signal adopts the file being received a set form and size by usb signal input interface circuit, programmable logic control unit is arrived by USB3.0 signal receiving circuit, USB3.0 signaling control unit, the file layout of reception, size and transmission time by programmable logic control unit, signal analyzed, judged again, thus transfer rate and the accuracy of signal judged.
The utility model advantage is: the utility model is easy to carry, and display result is direct, can connect four USB3.0 interfaces simultaneously, meet the measurement of USB3.0 high speed transmission of signals.
Claims (2)
1. a hi-speed USB interface proving installation, comprise power supply input control module, load capacity sampling and testing unit, MCU control unit, usb signal data detecting unit, programmable logic control unit, EEPROM, LED display circuit and first and second crystal oscillating circuit, it is characterized in that: described power supply input control module is connected with load capacity sampling and testing unit, described load capacity sampling and testing unit passes through I
2c mouth is connected with MCU control unit, described usb signal data detecting unit is connected with programmable logic control unit, described programmable logic control unit is connected with the first crystal oscillating circuit, described EEPROM is connected with MCU control unit by RA2, RA3 mouth, described second crystal oscillating circuit is connected with MCU control unit by OSC1/OSC2 mouth, and described LED display circuit, programmable logic control unit are connected with MCU control unit respectively by I/O mouth.
2. a kind of hi-speed USB interface proving installation according to claim 1, it is characterized in that: described usb signal data detecting unit, comprise first, second, third and fourth usb signal input interface circuit, first, second, third and fourth esd protection circuit and first and second USB338 module, a described USB338 module, comprises first and second usb signal receiving circuit and the first usb signal control module; Described 2nd USB338 module, comprises third and fourth usb signal receiving circuit and the second usb signal control module; First, second, third and fourth usb signal input interface circuit described is connected with first, second, third and fourth esd protection circuit and first, second, third and fourth usb signal receiving circuit respectively; first and second usb signal receiving circuit described is connected with the first usb signal control module respectively; third and fourth usb signal receiving circuit described is connected with the second usb signal control module respectively, and first and second usb signal control module described is connected with programmable logic control unit respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394189.7U CN204694793U (en) | 2015-06-09 | 2015-06-09 | A kind of hi-speed USB interface proving installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520394189.7U CN204694793U (en) | 2015-06-09 | 2015-06-09 | A kind of hi-speed USB interface proving installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204694793U true CN204694793U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520394189.7U Active CN204694793U (en) | 2015-06-09 | 2015-06-09 | A kind of hi-speed USB interface proving installation |
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| Country | Link |
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| CN (1) | CN204694793U (en) |
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2015
- 2015-06-09 CN CN201520394189.7U patent/CN204694793U/en active Active
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