CN105445604A - USB 3.1 C type cable automatic test method - Google Patents
USB 3.1 C type cable automatic test method Download PDFInfo
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- CN105445604A CN105445604A CN201510751837.4A CN201510751837A CN105445604A CN 105445604 A CN105445604 A CN 105445604A CN 201510751837 A CN201510751837 A CN 201510751837A CN 105445604 A CN105445604 A CN 105445604A
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- 238000010998 test method Methods 0.000 title abstract 2
- 238000012360 testing method Methods 0.000 claims abstract description 127
- 238000000034 method Methods 0.000 claims abstract description 29
- 238000013459 approach Methods 0.000 claims description 22
- 230000005611 electricity Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract 2
- 238000011221 initial treatment Methods 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides a USB 3.1 C type cable automatic test method. The method comprises the steps of S1, respectively arranging a measurement tool at each of the two ports of a USB cable, and conducting the initial treatment; S2, setting i to be 1; S3, sending a high/low level to the i<th> IO port of the USB cable; S4, detecting whether an IO line corresponding to the above IO port and an adjacent IO line are short-circuited or not and then storing the detecting result in a register corresponding to the IO port; S5, detecting whether the IO line is disconnected and then storing the detecting result in the register; S6, judging whether i is equal to the total number of IO lines in the USB cable; if not, executing the step S7; otherwise, ending the process; S7, i=i+1 and returning to execute the step S3, wherein the USB cable is composed of i IO lines and i is a positive integer greater than 0. In this way, the error of the manual operation is reduced, and both the testing efficiency and the first pass yield are increased. Meanwhile, the measurement tools are controlled by a personnel computer (PC) and test results are uploaded to the PC. As a result, the quality track of products is facilitated.
Description
Technical field
The present invention relates to technical field of electric power communication, particularly relate to a kind of USB3.1TYPE-C molded line cable automatic test approach.
Background technology
USB3.1TYPE-C is a kind of more advanced high-speed communication cable, and in current process of manufacture, mainly by the processing situation of the manual p-wire cable of people, inefficiency and fraction defective are up to more than 10%.Simultaneously, because USB3.1TYPE-C cable supports bidirectional power supply, in cable, there is a power supply control chip, need the testing apparatus of specialty to complete test, because the impact of fraction defective exists, likely cause the damage of USB3.1TYPE-C testing apparatus and USB3.1TYPE-C equipment.
Cross in stroke in the production and processing of USB3.1TYPE-C cable, can short circuit be brought due to the misoperation in welding process or connect tin.In this case, if directly used, the damage of USB3.1 equipment will be caused, even on a production line, also can cause the damage of USB3.1TYPE-C cable rate test instrument.
Therefore, a kind of method of high efficiency test USB3.1TYPE-C cable is provided, becomes current problem demanding prompt solution.
Summary of the invention
In view of the above problems, the application describes a kind of USB3.1TYPE-C molded line cable automatic test approach, comprises step:
S1: install a survey instrument respectively in two ports of USB cable, and carry out initialization process;
S2: make i=1;
S3: send high/low level to the I/O port of i-th in described USB cable;
S4: detect the whether short circuit test result deposited in register corresponding to described I/O port of IO line corresponding to described I/O port and adjacent IO line;
S5: detect the whether open circuit test result deposited in described register of described IO line;
S6: judge whether i equals the sum of IO line in described USB cable, if not, perform S7; Otherwise, terminate;
S7:i=i+1, and return execution step S3;
Wherein, described USB cable comprises IO line described in i bar altogether, i be greater than 0 positive integer.
Preferably, if judge in step S4 that described IO line does not exist short circuit problem, perform step S5; Otherwise, perform step S7.
Preferably, the process of carrying out initialization process in step sl comprises step:
The corresponding relation of internal register and all described I/O ports is set;
Described register is distributed according to described corresponding relation;
I/O port described in initialization;
Judge whether all described I/O ports can communicate with PC, the result that maybe can not communicate communicating is deposited to the described register corresponding to described I/O port, and is presented on LCD or is passed in PC.
Preferably, after carrying out initialization process, also step is comprised:
S01: judge whether described survey instrument receives the next interrupting information of trigger key transmission, if so, performs S2; Otherwise, perform S02;
S02: described PC issues the trigger message of described trigger, performs S2.
Preferably, described method also comprises step:
S21: after described I/O port have passed short circuit and out of circuit test, opens the Energy control pin of the first port of described I/O port, allows described first port power to the second port;
S22: detect and whether power successfully, and by test result stored in register corresponding to described I/O port, if can, perform S23, otherwise, perform S25;
S23: the Energy control pin of closing described first port, and the Energy control pin opening described second port is to allow described second port to described first end confession electricity;
S24: detect and whether power successfully, and by test result stored in described register corresponding to described I/O port;
S25: stop power supply.
Preferably, when whether detection powers successful, detect non-power pin and whether receive voltage, if can, then test result is unsuccessfully; Otherwise, perform step S23 or S25.
Preferably, also step is comprised after step s25:
Judge whether that all upper electrical testings that have passed the described I/O port of short circuit and out of circuit test all complete, if not, return step S21; Otherwise, terminate.
Preferably, in step s 4 which, send signal from described I/O port, detect the I/O port adjacent with described I/O port and whether can receive described signal, if can, described test result is successfully; Otherwise described test result is unsuccessfully.
Preferably, in step s 5, send signal from described I/O port, detect the I/O port be connected with described I/O port and whether can receive described signal, if can, described test result is successfully; Otherwise described test result is unsuccessfully.
Preferably, described USB cable is USB3.1TYPE-C cable.
Technique scheme tool has the following advantages or beneficial effect: the present invention is the program by main control chip, by programming to main control chip, all test with every root line of I/O port to USB3.1TYPE-C cable of chip, whether there is adjacent legs short circuit, open circuit effectively to test out USB3.1TYPE-C cable, and its power supply state is detected.Reduce manually-operated error, improve testing efficiency and first-pass yield., controlled survey instrument by PC, test result can upload to PC meanwhile, to facilitate the follow-up of quality of product.
Accompanying drawing explanation
With reference to appended accompanying drawing, to describe embodiments of the invention more fully.But, appended accompanying drawing only for illustration of and elaboration, do not form limitation of the scope of the invention.
Fig. 1 is the process flow diagram one of continuity testing in a kind of USB3.1TYPE-C molded line of the present invention cable automatic test approach;
Fig. 2 is the flowchart 2 of continuity testing in a kind of USB3.1TYPE-C molded line of the present invention cable automatic test approach;
Fig. 3 is initialized process flow diagram in a kind of USB3.1TYPE-C molded line of the present invention cable automatic test approach;
Fig. 4 is the process flow diagram of upper electrical testing in a kind of USB3.1TYPE-C molded line of the present invention cable automatic test approach;
Fig. 5 is the overview flow chart of a kind of USB3.1TYPE-C molded line of the present invention cable automatic test approach.
Embodiment
Below in conjunction with the drawings and specific embodiments, a kind of USB3.1TYPE-C molded line of the present invention cable automatic test approach is described in detail.
As shown in Figure 1, a kind of USB3.1TYPE-C molded line cable automatic test approach, comprises step:
S1: install a survey instrument respectively in two ports of USB cable, and carry out initialization process;
S2: make i=1;
S3: send high/low level to the I/O port of i-th in described USB cable;
S4: detect the whether short circuit deposit to register by test result of IO line corresponding to described I/O port and the IO line be connected;
S5: detect the whether open circuit test result being deposited to described register of described IO line;
S6: judge whether i equals the sum of IO line in described USB cable, if not, perform S7; Otherwise, terminate;
S7:i=1+1, returns and performs step S3.
Specifically, described USB cable comprises i bar IO line altogether, i be greater than 0 positive integer.Before USB cable is tested, first to carry out initialization process to described USB cable, then from Article 1 IO line, send high/low level to this IO line, detect the whether short circuit of this IO line and the IO line be connected, test result is deposited in register simultaneously.After testing whether short circuit, more whether test result is deposited in register by open circuit simultaneously to detect described IO line.In this manner, all IO lines in described USB cable are all detected, until all IO lines have all detected.
It is worthy of note, in the present embodiment, each described I/O port described all correspond to a register.When the IO line corresponding to I/O port detects, the testing result of acquisition is deposited in the register corresponding to this IO line.In simple terms, the testing result of IO line is corresponding thereto deposited in each register.In addition, USB3.1TYPE-C molded line cable automatic test approach can also comprise step:
As shown in Figure 2, S1: install a survey instrument respectively at the two ends of USB cable, carries out initialization process to described survey instrument;
S2: make i=1;
S3: send high/low level to the IO line of i-th in described USB cable;
S4: detect the whether short circuit deposit to register by test result of described IO line and the IO line be connected, if so, perform S7; Otherwise, perform S5;
S5: detect the whether open circuit test result being deposited to described register of described IO line;
S6: judge whether i equals the sum of IO line in described USB cable, if not, perform S7; Otherwise, terminate;
S7:i=1+1, returns and performs step S3.
In the above-mentioned methods, after the short circuit having carried out IO line each time or out of circuit test, if described IO line exists the situation of short circuit or short circuit, so just terminate whole test.
As shown in Figure 3, the process of carrying out initialization process comprises step:
S11: the corresponding relation that internal register and described I/O port are set;
S12: distribute described register according to described corresponding relation;
S13: the described I/O port that initialization is all;
S14: judge whether described I/O port can communicate with PC;
S15: if can communicate, test result is deposited in the register corresponding to I/O port, and described test result to be passed on LCD and to show;
S16: if can not communicate, deposits test result in the register corresponding to I/O port, and described test result is passed on PC.
Specifically, in the process of initialization process, first will arrange the one-to-one relationship of the I/O port of internal register and USB cable, and distribute register according to this corresponding relation to I/O port, reinitialize all I/O ports.Afterwards, need to carry out communication check to each I/O port in USB cable, judge whether I/O port can carry out communication with PC specifically exactly, and the test result of each I/O port is deposited in register corresponding thereto.If can proper communication, so test result be presented on LCD; Otherwise, test result is passed on PC.
In addition, as shown in Figure 4, described USB3.1TYPE-C molded line cable automatic test approach also comprises step:
S21: after I/O port have passed short circuit and out of circuit test, opens the Energy control pin of the first port of described I/O port, allows the first port power to the second port; Wherein, described first port and described second port lay respectively at the two ends of described I/O port;
S22: detect and whether power successfully, and by test result stored in register corresponding to described I/O port, if can, perform S23, otherwise, perform S25;
S23: the Energy control pin of closing the first port, and the Energy control pin opening the second port is to allow the second port to first end confession electricity;
S24: detect and whether can to power successfully and by test result stored in register corresponding to described I/O port;
S25: stop power supply;
S26: judge whether that all upper electrical testings that have passed the I/O port of short circuit and out of circuit test all complete, if not, return step S21; Otherwise, terminate.
Specifically, if I/O port have passed short circuit and out of circuit test, after namely determining the problem that there is not short circuit and open circuit, also need to carry out upper electrical testing.In this test, first the Energy control pin of the first port of described I/O port will be opened, the first port is allowed to power to the second port, if can power successfully, then close the Energy control pin of the first port, and the Energy control pin opening the second port is to allow the second port to first end confession electricity.If the first time of I/O port, upper electrical testing have passed, just needing to do secondary upper electrical testing conversely, if upper electrical testing just have failed for the first time, so doing secondary upper electrical testing conversely with regard to not needing.In this process, test each time and all need test result to deposit in register corresponding to I/O port.
As shown in Figure 5, after carrying out initialization process, also step is comprised:
S01: judge whether described survey instrument receives the next end message of trigger key transmission, if so, performs S2; Otherwise, perform S02; Whether wherein, trigger key is connected with described survey instrument, work in order to control described survey instrument;
S02:PC issues the trigger pip of trigger, then performs step S2.
It is worthy of note, the USB cable in the present embodiment is USB3.1TYPE-C cable.This testing tool is inserted respectively in the two ends of USB3.1TYPE-C cable, then presses Start button, start to test.Survey instrument receives after Start button presses by look-at-me, starts to start in order to test.
Test is connective: to the power line of GND and power supply, send signal, check whether the pin be attached thereto normally can receive signal, if can normally receive, then prove that connection is normal from one of them pin.Method like this, then tests the signal of next pin.If do not receive signal at the port of correspondence, then prove that this pin is problematic, test result is unsuccessfully.Simultaneously by the test result of correspondence write register.Namely in step s 5, send signal from described I/O port, detect the I/O port be connected with described I/O port and whether can receive described signal, if can, described test result is successfully; Otherwise described test result is unsuccessfully.
The short circuit of test adjacent leads: in same test port, first select a pin to send signal, then other pin is all accepting state, detect and whether can receive signal, if can receive, then test result is unsuccessfully, otherwise test result is normal.By in the test result of correspondence write register.Namely in step s 4 which, send signal from described I/O port, detect the I/O port adjacent with described I/O port and whether can receive described signal, if can, described test result is successfully; Otherwise described test result is unsuccessfully.
Energising test: under all testing normal situation at first two, control signal pin, the power pin of testing the first port to USB3.1 is powered, and then tests the second Port detecting at USB3.1 and whether receives voltage, there is then test result normal, otherwise test result failure; Detect other non-power pin simultaneously and whether receive voltage, have then test result failure, otherwise with regard to test result failure.And by register corresponding for test result write.In test result register, as long as there is the item of test crash, will put corresponding test result is unsuccessfully.
Result shows or uploads: after test completes, and arranges, test result read from register according to register, the LCD display carried shows or test result information is uploaded to PC by serial ports.
The present invention is the program by main control chip, by programming to main control chip, all test with every root line of I/O port to USB3.1TYPE-C cable of chip, whether there is adjacent legs short circuit, open circuit effectively to test out USB3.1TYPE-C cable, and its power supply state is detected.Reduce manually-operated error, improve testing efficiency and first-pass yield., controlled survey instrument by PC, test result can upload to PC meanwhile, to facilitate the follow-up of quality of product.
For a person skilled in the art, after reading above-mentioned explanation, various changes and modifications undoubtedly will be apparent.Therefore, appending claims should regard the whole change and correction of containing true intention of the present invention and scope as.In Claims scope, the scope of any and all equivalences and content, all should think and still belong to the intent and scope of the invention.
Claims (9)
1. a USB3.1TYPE-C molded line cable automatic test approach, is characterized in that, comprise step:
S1: install a survey instrument respectively in two ports of USB cable, and carry out initialization process;
S2: make i=1;
S3: send high/low level to the I/O port of i-th in described USB cable;
S4: detect the whether short circuit test result deposited in register corresponding to described I/O port of IO line corresponding to described I/O port and adjacent IO line;
S5: detect the whether open circuit test result deposited in described register of described IO line;
S6: judge whether i equals the sum of IO line in described USB cable, if not, perform S7; Otherwise, terminate;
S7:i=i+1, and return execution step S3;
Wherein, described USB cable comprises IO line described in i bar altogether, i be greater than 0 positive integer.
2. USB3.1TYPE-C molded line cable automatic test approach according to claim 1, is characterized in that, if judge in step S4 that described IO line does not exist short circuit problem, performs step S5; Otherwise, perform step S7.
3. USB3.1TYPE-C molded line cable automatic test approach according to claim 1, it is characterized in that, the process of carrying out initialization process in step sl comprises step:
The corresponding relation of internal register and all described I/O ports is set;
Described register is distributed according to described corresponding relation;
I/O port described in initialization;
Judge whether all described I/O ports can communicate with PC, the result that maybe can not communicate communicating is deposited to the described register corresponding to described I/O port, and is presented on LCD or is passed in PC.
4. USB3.1TYPE-C molded line cable automatic test approach according to claim 3, is characterized in that, after carrying out initialization process, also comprise step:
S01: judge whether described survey instrument receives the next interrupting information of trigger key transmission, if so, performs S2; Otherwise, perform S02;
S02: described PC issues the trigger message of described trigger, performs S2.
5. USB3.1TYPE-C molded line cable automatic test approach according to claim 1, is characterized in that, described USB3.1TYPE-C molded line cable automatic test approach also comprises step:
S21: after described I/O port have passed short circuit and out of circuit test, opens the Energy control pin of the first port of described I/O port, allows described first port power to the second port;
S22: detect and whether power successfully, and by test result stored in register corresponding to described I/O port, if can, perform S23, otherwise, perform S25;
S23: the Energy control pin of closing described first port, and the Energy control pin opening described second port is to allow described second port to described first end confession electricity;
S24: detect and whether power successfully, and by test result stored in described register corresponding to described I/O port;
S25: stop power supply.
6. USB3.1TYPE-C molded line cable automatic test approach according to claim 5, is characterized in that, when whether detection powers successful, detects non-power pin and whether receives voltage, if can, then test result is unsuccessfully; Otherwise, perform step S23 or S25.
7. USB3.1TYPE-C molded line cable automatic test approach according to claim 6, is characterized in that, also comprise step after step s25:
Judge whether that all upper electrical testings that have passed the described I/O port of short circuit and out of circuit test all complete, if not, return step S21; Otherwise, terminate.
8. USB3.1TYPE-C molded line cable automatic test approach according to claim 1, is characterized in that, in step s 4 which, signal is sent from described I/O port, detect the I/O port adjacent with described I/O port and whether can receive described signal, if can, described test result is successfully; Otherwise described test result is unsuccessfully.
9. USB3.1TYPE-C molded line cable automatic test approach according to claim 8, is characterized in that, in step s 5, signal is sent from described I/O port, detect the I/O port be connected with described I/O port and whether can receive described signal, if can, described test result is successfully; Otherwise described test result is unsuccessfully.
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| CN201510751837.4A CN105445604B (en) | 2015-11-06 | 2015-11-06 | A kind of USB3.1 TYPE c-types cable automatic test approach |
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| CN108810701A (en) * | 2018-06-27 | 2018-11-13 | 维沃移动通信有限公司 | A kind of Type-C interfaces method for detecting abnormality and mobile terminal |
| CN111722149A (en) * | 2020-06-12 | 2020-09-29 | 浪潮电子信息产业股份有限公司 | Cable detection equipment, method and system and computer readable storage medium |
| CN113820628A (en) * | 2020-06-19 | 2021-12-21 | 神讯电脑(昆山)有限公司 | type-C interface detection device that opens circuit |
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| Publication number | Publication date |
|---|---|
| CN105445604B (en) | 2018-01-02 |
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