CN101482597B - Method and apparatus for implementing downloading function in on-line test course - Google Patents
Method and apparatus for implementing downloading function in on-line test course Download PDFInfo
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- CN101482597B CN101482597B CN 200910118626 CN200910118626A CN101482597B CN 101482597 B CN101482597 B CN 101482597B CN 200910118626 CN200910118626 CN 200910118626 CN 200910118626 A CN200910118626 A CN 200910118626A CN 101482597 B CN101482597 B CN 101482597B
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Abstract
The invention embodiment discloses a downloading apparatus and a method for implementing the down loading function in the on-line test process, the down loading apparatus comprises an interface conversion unit for connecting the PC and a processing unit in the downloading apparatus to implement the interface conversion between the PC and the processing unit; a trigger signal acquiring unit for acquiring the starting signal of the on-line tester; a downloading interface unit connected with the processing unit and the on-line tester; the processing unit connected with the trigger signal acquiring unit, the downloading interface unit and the interface conversion unit and used for downloading the target data on PC into the memory unit by the interface conversion unit by the interface conversion unit, also used for downloading the target data stored in the memory unit into the testing circuit board by the downloading interface unit, after the trigger signal acquiring unit acquires the starting signal of the on-line tester; a memory unit for storing the downloaded target data. The invention embodiment can save the facility cost investment under the precondition of implementing the downloading function.
Description
Technical field
The present invention relates to technical field of measurement and test, relate in particular to method and the download control device of realizing download function in a kind of on-line testing process.
Background technology
On-line testing (ICT, In Circuit Test) is by to the electrical property of online circuit board and be electrically connected and test, and whether has a kind of standard method of test of defective with the check circuit plate.The on-line testing instrument provides the equipment of on-line testing function.The on-line testing instrument is when being carried out on-line testing by the lateral circuit plate, be connected with several test probes on being arranged on needle-bar by lead, each test probe contacts the acquisition test signal with device on the circuit board, by lead these test signals are sent in the on-line testing instrument, test signal analysis are drawn the test result of circuit board by the on-line testing instrument.
The renewal speed that is positioned at integrated circuit (IC) device on the circuit board is very fast, be provided with on the present IC device more and be used for the interface that program is downloaded, in the circuit board making process, can utilize this interface that corresponding IC device is carried out program debug, can also more easily realize the batch updating of IC device internal program.But the program download function is not provided in the on-line testing in early days, circuit board is placed on when carrying out on-line testing on the on-line testing instrument, can't utilize the download interface of the IC device on the circuit board to download.Not with download function under the situation that the on-line testing instrument is incorporated into, carry out program to the IC device on the circuit board and download, the manually-operated link of must the increase program downloading, troublesome poeration.And if integral replacing has the new on-line testing equipment of download function, the equipment input cost is increased greatly.
Summary of the invention
The invention provides in a kind of on-line testing process method and the download apparatus of realizing download function, can be implemented in circuit board is carried out realizing in the process of on-line testing the function downloaded, and can save the cost of equipment.
The embodiment of the invention provides following technical scheme:
A kind of download apparatus is used for realizing download function in that circuit board is carried out the on-line testing process, and this device comprises:
Interface conversion unit is used for connecting the processing unit of host computer and download apparatus, realizes the interface conversion between PC and the processing unit;
The trigger pip collecting unit, the enabling signal that is used to gather online tester;
The download interface unit links to each other with the on-line testing instrument with processing unit, and links to each other with download interface on the circuit board of testing by the on-line testing instrument;
Processing unit, with trigger pip collecting unit, download interface unit and described interface conversion unit, be used for by described interface conversion unit, target data on the PC is downloaded in the storage unit, also be used for after the trigger pip collecting unit collects the enabling signal of on-line testing instrument, download to the described target data that is stored in the storage unit in the circuit board of testing by the download interface unit;
Storage unit is used for storage downloaded target data from the PC.
In the technique scheme, interface conversion unit can be the USB-RS232 interface conversion unit, and the USB interface conversion of signals that is used to realize PC becomes the RS232 interface signal of processing unit.
In the technique scheme, processing unit can also be used for reading data downloaded from described circuit board, and compares with target data in the described storage unit, and whether success is downloaded in check.
Realize the method for download function in a kind of on-line testing process, this method comprises:
Processing unit downloads to target data the storage unit from host computer by interface conversion unit;
Processing unit detects the enabling signal whether the trigger pip collecting unit collects the on-line testing instrument, when detecting the trigger pip collecting unit and collect the enabling signal of on-line testing instrument, the described target data that is stored in the storage unit is downloaded in the circuit board of testing by the download interface unit.
In the technique scheme, described method can also comprise: processing unit reads data downloaded from circuit board, compares with target data in the described storage unit, and whether success is downloaded in check.
As shown from the above technical solution, download apparatus provided by the invention and method for down loading can carry out the download of the realization circuit board of on-line testing to target data to circuit board.And the method and the download apparatus that provide according to the embodiment of the invention, can not need the on-line testing instrument is carried out integral replacing and upgrading, only need transform on original system, the download apparatus that the embodiment of the invention is provided just cooperates with the conventional online tester can realize data unload function.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the synoptic diagram of a kind of download apparatus of providing of the embodiment of the invention one;
Fig. 2 is the process flow diagram that the method for download function is provided in a kind of on-line testing process of providing of the embodiment of the invention two.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the invention clearer, below in conjunction with the accompanying drawing in the embodiment of the invention, technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
Embodiment one
Fig. 1 is the synoptic diagram of a kind of download apparatus of providing of the embodiment of the invention one, and as shown in Figure 1, this download apparatus 100 comprises: interface conversion unit 101, trigger pip collecting unit 102, download interface unit 103 and processing unit 104, storage unit 105.Wherein, the processing unit 104 that interface conversion unit 101 connects in PC 200 and the download apparatus 100 is realized the interface conversion between PC 200 and the processing unit 104, and storage is used for downloaded software or data in the PC 200.Trigger pip collecting unit 102 links to each other with on-line testing instrument 300, be used to gather the enabling signal of online tester 300, download interface unit 103 links to each other with processing unit 104 with on-line testing instrument 300, on-line testing instrument 300 with the test circuit board 400 on download interface link to each other, like this, processing unit 104 just can link to each other by the download interface on the circuit board 400 of download interface unit 104 and on-line testing instrument 300 and test, and processing unit 104 also is connected with trigger pip collecting unit 102.
Describe the course of work of the download apparatus that present embodiment provides below in detail.
Need to prove that above-mentioned download interface unit 103 links to each other and can be specially with on-line testing instrument 300: the test probe on the needle-bar of download interface unit 103 and on-line testing instrument 300 is connected.On-line testing instrument 300 with the test circuit board 400 on download interface link to each other and can be specially: the test probe on the needle-bar of on-line testing instrument 300 is connected with the download interface of the circuit board of test 400.
This shows that the download apparatus that present embodiment provides can carry out in the process of on-line testing target data being downloaded in the circuit board at circuit board.
The download apparatus that utilizes present embodiment to provide is realized in the downloading process, do not need the conventional online tester is changed, only need on the basis of original system, transform, increase the download apparatus in the present embodiment, and cooperate online tester just to can be implemented in the downloading process of the circuit board in the line test process.Compare and change upgrading on-line testing instrument equipment to realize download function, the method that present embodiment provides is more saved the input cost of equipment.
Embodiment two
Present embodiment provides the method that realizes download function in a kind of on-line testing process, and as shown in Figure 2, this method comprises:
Step S201: processing unit downloads to target data the storage unit from host computer by interface conversion unit;
Step S202: processing unit detects the signalling collecting unit and whether examines the enabling signal that collects the on-line testing instrument, when detecting starting signal and collect the signal of on-line testing instrument, and execution in step S203;
Step S203: will be stored in that target data downloads in the circuit board of testing by the download interface unit in the storage unit.
Wherein, above-mentioned target data is downloaded to by the download interface unit in the circuit board of testing can specific implementation be: processing unit downloads to the target data in the storage unit in the circuit board of test by the download interface unit and via the on-line testing instrument that links to each other with the download interface unit.
In addition, can also comprise in the method that present embodiment provides:
Step S204: processing unit reads downloaded target data from the circuit board of test, and with storage unit in the target data of storing compare, judge whether to download successfully.Can the result who download further be confirmed like this.
This shows that the method that present embodiment provides can make circuit board in the process of carrying out the line test, downloads target data.
In the method that present embodiment provides, do not need the conventional online tester is changed, only need on the basis of original system, transform, increase the download apparatus in the present embodiment, and cooperate online tester just to can be implemented in the downloading process of the circuit board in the line test process.Compare and change upgrading on-line testing instrument equipment to realize download function, the method that present embodiment provides is more saved the input cost of equipment.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. download apparatus is used for realizing download function in that circuit board is carried out the on-line testing process, it is characterized in that this device comprises:
Interface conversion unit is used for connecting the processing unit of PC and download apparatus, realizes the interface conversion between PC and the processing unit;
The trigger pip collecting unit, the enabling signal that is used to gather online tester;
The download interface unit links to each other with the on-line testing instrument with processing unit, and links to each other with download interface on the circuit board of testing by the on-line testing instrument;
Processing unit, link to each other with trigger pip collecting unit, download interface unit and described interface conversion unit, be used for by described interface conversion unit, target data on the PC is downloaded in the storage unit, also be used for after the trigger pip collecting unit collects the enabling signal of on-line testing instrument, download to the described target data that is stored in the storage unit in the circuit board of testing by the download interface unit;
Storage unit is used for storage downloaded target data from the PC.
2. download apparatus according to claim 1 is characterized in that described interface conversion unit is the USB-RS232 interface conversion unit, and the USB interface conversion of signals that is used to realize PC becomes the RS232 interface signal of processing unit.
3. download apparatus according to claim 1 is characterized in that, described processing unit also is used for reading data downloaded from described circuit board, and compares with target data in the described storage unit, and whether success is downloaded in check.
4. use the method that realizes download function as the download apparatus in the claim 1 in an on-line testing process, it is characterized in that this method comprises:
Processing unit in the described download apparatus downloads to target data the storage unit from PC by interface conversion unit;
Processing unit in the described download apparatus detects the enabling signal whether the trigger pip collecting unit collects the on-line testing instrument, when detecting the trigger pip collecting unit and collect the enabling signal of on-line testing instrument, the described target data that is stored in the storage unit is downloaded in the circuit board of testing by the download interface unit.
5. method according to claim 4 is characterized in that, described method also comprises: the processing unit in the described download apparatus reads data downloaded from circuit board, compares with target data in the described storage unit, and whether success is downloaded in check.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910118626 CN101482597B (en) | 2009-02-26 | 2009-02-26 | Method and apparatus for implementing downloading function in on-line test course |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910118626 CN101482597B (en) | 2009-02-26 | 2009-02-26 | Method and apparatus for implementing downloading function in on-line test course |
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| Publication Number | Publication Date |
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| CN101482597A CN101482597A (en) | 2009-07-15 |
| CN101482597B true CN101482597B (en) | 2011-06-15 |
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| CN112947380A (en) * | 2021-03-05 | 2021-06-11 | 杭州广安汽车电器有限公司 | Method and device for automatically testing PCBA of vehicle-mounted air conditioner controller |
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