CN103149526A - Printed circuit board assembly (PCBA) board testing system and PCBA board testing method - Google Patents
Printed circuit board assembly (PCBA) board testing system and PCBA board testing method Download PDFInfo
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- CN103149526A CN103149526A CN2011104030159A CN201110403015A CN103149526A CN 103149526 A CN103149526 A CN 103149526A CN 2011104030159 A CN2011104030159 A CN 2011104030159A CN 201110403015 A CN201110403015 A CN 201110403015A CN 103149526 A CN103149526 A CN 103149526A
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Abstract
The invention provides a printed circuit board assembly (PCBA) board testing system. The PCBA board testing system comprises a control end and a testing tool. The testing tool comprises a testing unit, a burn unit and a connecting circuit, wherein the connecting circuit is connected with a testing pin and a burn pin of a PCBA board. The control end comprises a burn control unit and a testing control unit, the burn control unit is used for controlling the burn unit to carry out program burn on a programmable chip on the PCBA board. The testing control unit is used for controlling the testing unit to carry out testing on each function circuit of the PCBA board, calling the burn control unit to carry out burn control, and carrying out testing on the burnt programmable chip and a chip control circuit of the PCBA board. The invention further provides a PCBA board testing method. According to the PCBA board testing system and the PCBA board testing method, due to the fact that a burn program is inlaid into an automatic testing process, a function circuit testing process and a burn process are simultaneously carried out, not only is the testing tool saved, but also efficiency is improved.
Description
Technical field
The present invention relates to burning chip and field tests, more particularly, relate to a kind of PCBA board test system and method.
Background technology
Along with the fast development of electronics industry robotization, a large amount of various programmable chips have been born.Various IC programming (burning) devices have also just been produced thus.
Existing method for burn-recording is as follows: will need the programmable chip of burning manually to be placed on programmer, and with burning program in programmable chip; The programmable chip that burning is had a program installs to chip mounter and carries out the test of PCBA slab integral in the PCBA plate again.
But above-mentioned recording device purposes is too single, and cost is higher; And use burn recording software and carry out the method for burning by cd-rom recorder, operating mistake easily appears in complicated operation in the burning process, cause the increase of product fraction defective; In addition, above-mentioned method for burn-recording is by artificial mode plug programmable chip, inefficiency, and programmable chip repeatedly plug easily cause damage.
In addition, to the PCBA plate of requirement of programming is arranged, also can carry out online burning at present, namely need not the plug programmable chip, and directly the programmable chip on the PCBA plate is carried out burning program.Yet this on-line rewriting method need to take a burning position (frock) and carry out burning, and then uses a test bit (frock) to carry out the test of veneer circuit component.For PCBA plate volume production, above-mentioned on-line testing method need increase test bit, brings various inconvenience (as: testing cost, testing efficiency, handling cost etc.) to the user.
Summary of the invention
The technical problem to be solved in the present invention is that the problem low for above-mentioned PCBA board test efficient, that handling cost is high provides a kind of PCBA board test system and method.
The technical scheme that the present invention solves the problems of the technologies described above is, a kind of PCBA board test system is provided, and is used for test PCBA plate, and described PCBA plate comprises a plurality of functional circuits and at least one programmable chip; Described PCBA board test system comprises control end and at least one test fixture; Described test fixture comprises test cell, burning unit and connecting circuit, and wherein said test cell and burning unit are respectively via test pin and the burning pin of described connecting circuit connection PCB A plate; Described control end comprises burning control module and unit of testing and controlling, described burning control module, be used for controlling described burning unit the programmable chip on the PCBA plate is carried out burning program, described unit of testing and controlling, being used for controlling test cell tests each functional circuit of PCBA plate, call simultaneously the burning control module and carry out burning and control, and the programmable chip that burning is completed and the chip controls circuit of PCBA plate are tested.
In PCBA board test of the present invention system, described unit of testing and controlling comprises standard data storage unit and judging unit as a result; Described standard data storage unit be used for storage each functional circuit, programmable chip and PCBA plate the chip controls circuit with reference to test result, described judging unit as a result be used for chip controls circuit by comparing each functional circuit, programmable chip and PCBA plate when test actual output and describedly judge with reference to test result whether the chip controls circuit of each functional circuit, programmable chip and PCBA plate qualified.
In PCBA board test of the present invention system, described unit of testing and controlling also comprises the interruption control module, is used for ending test when the chip controls circuit of judgment unit judges functional circuit, programmable chip or PCBA plate as a result is defective.
In PCBA board test of the present invention system, described unit of testing and controlling is called described burning control module with dynamic connection method.
The present invention also provides a kind of PCBA board measuring method, and described PCBA plate comprises a plurality of functional circuits and at least one programmable chip, and described PCBA board measuring method comprises the steps:
Step (a), control end is tested respectively each functional circuit of the PCBA plate on test fixture, call simultaneously burning program the programmable chip of PCBA plate is carried out burning program, described test fixture is connected to test pin and the burning pin of described PCBA plate;
Step (b) is carried out the chip controls circuit test to the PCBA plate when qualified and programmable chip burning is completed at each functional circuit.
In PCBA board measuring method of the present invention, described control end calls described burning program with dynamic connection method.
In PCBA board measuring method of the present invention, described step (a) comprising:
(a1) respectively with each functional circuit the actual output when the input test data with compare with reference to test result;
(a2) when surpassing predetermined value, described actual output and difference with reference to test result confirm that functional circuit is defective.
In PCBA board measuring method of the present invention, comprise after described step (a2): (a3) end to the burning program of programmable chip and to the test of functional circuit, confirm simultaneously the defective and display alarm prompting of PCBA plate.
In PCBA board measuring method of the present invention, described step (b) comprising:
(b1) with the chip controls circuit of PCBA plate the actual output when the input test data with compare with reference to test result, and when described actual output and difference with reference to test result surpass predetermined value execution in step (b3), otherwise execution in step (b2);
Whether the burning result that (b2) judges programmable chip reaches predetermined result, if reach execution in step (b4) of predetermined result, otherwise execution in step (b3);
(b3) end test and burning to described PCBA plate, confirm simultaneously the defective and display alarm prompting of PCBA plate;
(b4) the chip controls circuit of PCBA plate is tested, and the actual output that obtains in test execution in step (b3) when surpassing predetermined value with difference with reference to test result, otherwise confirm that the PCBA board test is qualified.
PCBA board test system and method for the present invention by burning program is embedded automatic testing process, makes the functional circuit test process synchronize with the burning process and carries out, and has not only saved test fixture, and has improved efficient.In addition, the present invention can in time stop burning and integrated testability when the functional circuit defective, thereby effectively reduces testing cost, improves testing efficiency, the management of being more convenient for.
Description of drawings
Fig. 1 is the schematic diagram of PCBA board test the first embodiment of system of the present invention.
Fig. 2 is the schematic diagram of the embodiment of unit of testing and controlling in Fig. 1.
Fig. 3 is the process flow diagram of PCBA board measuring method embodiment of the present invention.
Fig. 4 is the process flow diagram of another embodiment of PCBA board measuring method of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, be the schematic diagram of PCBA board test system embodiment of the present invention.In the present embodiment, PCBA plate 30 to be tested comprises a plurality of functional circuits and at least one programmable chip, and test macro comprises control end 10 and at least one test fixture 20.Wherein test fixture 20 comprises test cell 21, burning unit 22 and connecting circuit 23.Control end 10 comprises unit of testing and controlling 11 and burning control module 12.Test cell 21 and burning unit 22 are respectively via test pin and the burning pin of connecting circuit 23 connection PCB A plates 30.Above-mentioned control end 10 can be equipped with for PC etc. the equipment of test procedure; Test fixture 20 is integrated with test and burning, and also has the burning signal wire between test fixture 20 and control end 10 except the test signal line.Test cell 21, burning unit 22, unit of testing and controlling 11 and burning control module 12 are by hardware, software or it is in conjunction with realization.
The programmable chip that above-mentioned burning control module 12 is used for controlling on burning 22 pairs of unit PCBA plate 30 carries out burning program, wherein this burning control module 12 can be the manual burn recording software of factory that IC manufacturer provides, perhaps according to the burn recording software of the api function exploitation of the IC burning of IC producer.Especially, burning control module 12 can adopt the mode of dynamic link library (DLL) to realize, dynamic link library is convenient to other softwares it is called and revises.
Unit of testing and controlling 11 is used for the functional circuit of 21 pairs of PCBA plates 30 of control test cell and tests respectively; In to the functional circuit test, this unit of testing and controlling 11 is also called burning control module 12 and is carried out burning control (for example calling described burning control module 12 with dynamic connection method), to realize the burning program of programmable chip; Complete in the programmable chip burning, unit of testing and controlling 11 is also tested the burning result of programmable chip and the chip controls circuit of PCBA plate 30.
In above-described embodiment, due to burning program Embedded test process, the functional circuit test process is synchronizeed with the burning process carry out, not only saved test fixture, and improved efficient, be convenient to management.
In another embodiment of the present invention, the unit of testing and controlling 11 of above-mentioned PCBA board test system also comprises standard data storage unit 111 and judging unit 112 as a result, as shown in Figure 2.
Standard data storage unit 111 is used for storage with reference to test result, whether this is the output data when the input test data respectively with reference to the chip controls circuit of test result is each qualified functional circuit, burning is completed programmable chip and PCBA plate, can qualified with this chip controls circuit that judges programmable chip that each functional circuit, burning are completed and PCBA plate.judging unit 112 is used for by comparison with reference to test result and each functional circuit as a result, the actual output of the chip controls circuit of the programmable chip that burning is completed and PCBA plate when the input test data judges each functional circuit, whether the chip controls circuit of the programmable chip that burning is completed and PCBA plate is qualified, if functional circuit for example, the actual output of the chip controls circuit of the programmable chip that burning is completed or PCBA plate when the input test data is in reference test result scope the time, the arbitration functions circuit, the chip controls circuit of the programmable chip that burning is completed or PCBA plate is qualified.
Above-mentioned unit of testing and controlling 11 can comprise that also interrupts a control module 113, this interruption control module 113 is used for when the chip controls circuit of judging unit 112 arbitrary functional circuits of judgement as a result, programmable chip that burning is completed or PCBA plate is defective, burning control module 11 and unit of testing and controlling 12 being ended, to do further processing (such as display alarm information etc.).
As shown in Figure 3, be the process flow diagram of PCBA board measuring method embodiment of the present invention, wherein the PCBA plate comprises a plurality of functional circuits and at least one programmable chip.The method comprises the following steps:
Step S31: control end is tested respectively each functional circuit of the PCBA plate on test fixture, calls simultaneously burning program the programmable chip of PCBA plate is carried out burning program, and above-mentioned test fixture is connected to test pin and the burning pin of PCBA plate.
In test during each functional circuit, can the actual output when the input test data judges whether the programmable chip that each functional circuit and burning complete is qualified with reference to test result and each functional circuit by comparison.
In this step, can call burning program with dynamic connection method in test and carry out burning control.
In this step, to the burning of the test of each functional circuit of PCBA plate and programmable chip in same test fixture operation and carry out simultaneously, thereby not only saved test fixture, and saved the time.
Step S32: qualified in each functional circuit test passes and programmable chip burning, control end carries out the chip controls circuit test to the PCBA plate.In this step, can the actual output when the input test data judges whether the chip controls circuit of PCBA plate is qualified with reference to test result and PCBA plate by comparison.
As shown in Figure 4, it is the schematic flow sheet of another embodiment of PCBA board measuring method of the present invention, PCBA plate in this embodiment comprises a plurality of functional circuits and at least one programmable chip equally, and the test fixture at this PCBA plate place is connected to test pin and the burning pin of PCBA plate simultaneously.The method comprises the following steps:
Step S41: control end is tested respectively each functional circuit of the PCBA plate on test fixture, for example to each functional circuit difference input test data, and the output of obtaining each functional circuit.
Step S42: control end calls burning program the programmable chip of PCBA plate is carried out burning program, and obtains the burning result.This step is synchronizeed with step S41 and is carried out.
Step S43: the actual output with each functional circuit when the input test data with compare with reference to test result.
Step S44: the actual output during programmable chip input test data that burning is completed with compare with reference to test result.
Step S46: whether the test of arbitration functions circuit and programmable chip burning be all qualified, and namely whether reality is exported and conformed to reference to test result.If qualified (namely actual output with conform to reference to test result) be execution in step S47, otherwise execution in step S51, namely to confirm defectively, display alarm is simultaneously pointed out.
Step S47: control end carries out the chip controls circuit test to the PCBA plate on test fixture, for example to the input interface input test data of the chip controls circuit of PCBA plate, and obtains corresponding output.
Step S48: will test the actual output that obtains and compare with reference to test result,
Step S49: execution in step S51 when reality output and difference with reference to test result surpass predetermined value, otherwise execution in step S50.
Step S50: confirm that the PCBA board test is qualified.
Step S51: confirm test failure, the prompting of display alarm simultaneously.
In this embodiment, owing in time ending test when functional circuit test or the burning test failure, can further reduce the test duration, improve testing efficiency.
The above; only for the better embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement are within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (9)
1. a PCBA board test system, be used for test PCBA plate, and described PCBA plate comprises a plurality of functional circuits and at least one programmable chip; It is characterized in that: described PCBA board test system comprises control end and at least one test fixture; Described test fixture comprises test cell, burning unit and connecting circuit, and wherein said test cell and burning unit are respectively via test pin and the burning pin of described connecting circuit connection PCB A plate; Described control end comprises burning control module and unit of testing and controlling, described burning control module, be used for controlling described burning unit the programmable chip on described PCBA plate is carried out burning program, described unit of testing and controlling, being used for controlling test cell tests each functional circuit of described PCBA plate, call simultaneously described burning control module and carry out burning and control, and the programmable chip that burning is completed and the chip controls circuit of PCBA plate are tested.
2. PCBA board test according to claim 1 system is characterized in that: described unit of testing and controlling comprises standard data storage unit and judging unit as a result; Described standard data storage unit be used for storage each functional circuit, programmable chip and PCBA plate the chip controls circuit with reference to test result, described judging unit as a result be used for chip controls circuit by comparing each functional circuit, programmable chip and PCBA plate when test actual output and describedly judge with reference to test result whether the chip controls circuit of each functional circuit, programmable chip and PCBA plate qualified.
3. PCBA board test according to claim 2 system, it is characterized in that: described unit of testing and controlling also comprises the interruption control module, is used for ending test when the chip controls circuit of judgment unit judges functional circuit, programmable chip or PCBA plate as a result is defective.
4. PCBA board test according to claim 1 system, is characterized in that, described unit of testing and controlling is called described burning control module with dynamic connection method.
5. PCBA board measuring method, described PCBA plate comprises a plurality of functional circuits and at least one programmable chip, it is characterized in that, described PCBA board measuring method comprises the steps:
Step (a), control end is tested respectively each functional circuit of the PCBA plate on test fixture, call simultaneously burning program the programmable chip of PCBA plate is carried out burning program, described test fixture is connected to test pin and the burning pin of described PCBA plate;
Step (b) is carried out the chip controls circuit test to the PCBA plate when qualified and programmable chip burning is completed at each functional circuit.
6. PCBA board measuring method according to claim 5, is characterized in that, described control end calls described burning program with dynamic connection method.
7. PCBA board measuring method according to claim 5, is characterized in that, described step (a) comprising:
(a1) respectively with each functional circuit the actual output when the input test data with compare with reference to test result;
(a2) when surpassing predetermined value, described actual output and difference with reference to test result confirm that functional circuit is defective.
8. PCBA board measuring method according to claim 7, it is characterized in that, comprise after described step (a2): (a3) end to the burning program of programmable chip and to the test of functional circuit, confirm simultaneously the defective and display alarm prompting of PCBA plate.
9. PCBA board measuring method according to claim 5, is characterized in that, described step (b) comprising:
(b1) with the chip controls circuit of PCBA plate the actual output when the input test data with compare with reference to test result, and when described actual output and difference with reference to test result surpass predetermined value execution in step (b3), otherwise execution in step (b2);
Whether the burning result that (b2) judges programmable chip reaches predetermined result, if reach execution in step (b4) of predetermined result, otherwise execution in step (b3);
(b3) end test and burning to described PCBA plate, confirm simultaneously the defective and display alarm prompting of PCBA plate;
(b4) the chip controls circuit of PCBA plate is tested, and the actual output that obtains in test execution in step (b3) when surpassing predetermined value with difference with reference to test result, otherwise confirm that the PCBA board test is qualified.
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| CN109596970A (en) * | 2018-11-23 | 2019-04-09 | 芜湖雅葆轩电子科技股份有限公司 | PCBA board test macro |
| CN109596969A (en) * | 2018-11-23 | 2019-04-09 | 芜湖雅葆轩电子科技股份有限公司 | PCBA board test method |
| CN110596569A (en) * | 2019-08-20 | 2019-12-20 | 福州瑞芯微电子股份有限公司 | PCBA board testing method and device |
| CN112858869A (en) * | 2019-11-12 | 2021-05-28 | 深南电路股份有限公司 | PCBA board burning and testing method and system |
| CN111273155A (en) * | 2020-02-13 | 2020-06-12 | 佛山普瑞威尔科技有限公司 | Chip burning detection method and system and computer readable storage medium |
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| CN114814540A (en) * | 2022-04-20 | 2022-07-29 | 苏州吾爱易达物联网有限公司 | SLT (Serial bus test) method and system of SIP (Session initiation protocol) chip |
| CN117370136A (en) * | 2023-10-19 | 2024-01-09 | 千思跃智能科技(苏州)股份有限公司 | PCBA burns record capability test system based on data analysis |
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