CN101359032A - Debugging device for mobile communication data terminal circuit board and method thereof - Google Patents
Debugging device for mobile communication data terminal circuit board and method thereof Download PDFInfo
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- CN101359032A CN101359032A CNA2008101420654A CN200810142065A CN101359032A CN 101359032 A CN101359032 A CN 101359032A CN A2008101420654 A CNA2008101420654 A CN A2008101420654A CN 200810142065 A CN200810142065 A CN 200810142065A CN 101359032 A CN101359032 A CN 101359032A
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Abstract
The invention discloses a debugging device for a mobile communication data terminal circuit board, and a method thereof; the debugging device comprises a circuit board used in the mobile communication terminal; the invention is characterized in that the circuit board is provided with a JTAG test interface unit; the JTAG test interface unit is integrated with the circuit board; and an easily-breaking connecting structure is arranged between the JTAG test interface unit and the circuit board and used for breaking off and removing the JTAG test interface unit when the circuit board passes the test. The debugging device and the method adopt the circuit board design and the production process to realize JTAG debugging, and the test points are removed from the circuit board after the test and the field programming, so that the produced finished products do not take up the space on the circuit board and can meet JTAG debugging and the relevant tests of the research and development stage as well as the production flow at the same time; and the products can not leak the software secrets through the JTAG debugging interface unit after the products leave the factory.
Description
Technical field
The present invention relates to a kind of circuit board arrangement and production method thereof of small mobile terminals, in particular a kind of debugging apparatus of small-sized mobile communication data terminal circuit board and disposal route thereof.
Background technology
In the prior art, small mobile terminals such as mobile phone are in the production run of unlimited card of surfing Internet, and its circuit board will carry out jtag test and debugging before the assembling usually after production is finished.JTAG (JointTest Action Group, combined testing action group) is a kind of international standard test protocol (an IEEE1149.1 compatibility), is mainly used in the chip internal test.Most now high-grade device are all supported the JTAG agreement, as DSP, FPGA device etc.The jtag interface of standard is 4 lines: TMS, TCK, TDI, TDO, is respectively model selection, clock, data input and DOL Data Output Line.
JTAG is used for chip is tested at first, and ultimate principle is at TAP (Test Access Port of device inside definition; The test access mouth) tests carrying out internal node by the jtag test instrument of special use.Jtag test allows a plurality of devices to be cascaded by jtag interface, forms a JTAG chain, can realize each device is tested respectively.Now, jtag interface also is usually used in realizing ISP (In-System rogrammable; Online programming), devices such as FLASH are programmed.
The JTAG programming mode is an online programming, needs in the traditional mode of production flow process earlier chip to be carried out pre-programmed, refills on the circuit board.Therefore chip can change, the flow process of simplification be first immobilising device to circuit board, again with the JTAG programming, thereby speed up the work greatly.Jtag interface can be programmed to all parts of PSD chip internal. about the JTAG emulator, be at some special single-chip microcomputer or CPU, this class slice, thin piece uses the data line that meets the jtag interface standard definition to be implemented in sequence of threads download (ISP) or procedure simulation with data time sequence.
In the small-sized mobile communication data terminal equipment now, JTAG debug point and test point all are placed on the surface of PCB, the quantity of JTAG debug point and test point is generally more than 10, like this concerning the very strict small-sized mobile communication data terminal equipment of volume requirement, keeping the jtag test interface unit is a huge expense, even must realize by increasing PCB area or small product size, will greatly influence the integral body planning of product like this, greatly influence the competitiveness of product in market.
Because debugging such as the space of small-sized mobile communication data terminal is at full stretch, JTAG and test point will take bigger PCB space, like this in the circuit board size that has just strengthened wireless small-sized equipment virtually, inhibition are played in miniaturization.
Therefore, prior art has yet to be improved and developed.
Summary of the invention
The object of the present invention is to provide a kind of debugging apparatus and method thereof of mobile communication data terminal circuit board, realization does not account for circuit board space after carrying out JTAG debugging and test, to be implemented in the circuit board of production smaller size smaller behind the JTAG field programming.
Technical scheme of the present invention comprises:
A kind of debugging apparatus of mobile communication data terminal circuit board, it comprises a circuit board, is used for mobile communication terminal; Wherein, described circuit board is provided with the jtag test interface unit; Described jtag test interface unit and described circuit board are wholely set, and and described circuit board between be provided with syndeton easy to break, be used for described circuit board testing by after with the removal that fractures of described jtag test interface unit.
Described proving installation, wherein, described syndeton easy to break is several stamp hole structures of row.
Described proving installation, wherein, described jtag test interface unit is provided with JTAG debug point and test point, and the line between described JTAG debug point and test point and the effective circuit plate zone passes through by the gap between the described stamp hole structure.
Described proving installation, wherein, described syndeton easy to break is a V-type groove.
Described proving installation wherein, is provided with model selection, clock, data input and DOL Data Output Line interface in the described jtag test interface unit.
The adjustment method of described mobile communication data terminal circuit board debugging apparatus, it may further comprise the steps:
A, carry out jtag test by the jtag test interface unit that on circuit board, is wholely set in advance;
B, to by the test circuit board described jtag test interface unit is separated from this circuit board.
Described adjustment method, wherein, described step B also comprises: set in advance described jtag test interface unit and be connected by the stamp hole structure with circuit board, then described jtag test interface unit and described circuit board are fractureed.
Described adjustment method, wherein, described step B also comprises: set in advance between described jtag test interface unit and the circuit board and be connected by V-type groove structure, then described jtag test interface unit and described circuit board are fractureed.
Described adjustment method, wherein, described jtag test interface unit cuts off and being connected of described circuit board by a cutting instrument.
The debugging apparatus of a kind of mobile communication data terminal circuit board provided by the present invention and method thereof, owing to adopted the board design and the technological process of production to realize the scheme that JTAG debugging and test point are removed from circuit board behind test and field programming, finished product after the production does not account for circuit board space, can satisfy simultaneously the JTAG debugging and the dependence test of development and production procedure again, and can be by the JTAG debug interface unit software of divulging a secret behind the product export.
Description of drawings
Fig. 1 is the debugging apparatus synoptic diagram of mobile communication data terminal circuit board of the present invention;
Fig. 2 is the local enlarged diagram of the debugging apparatus of mobile communication data terminal circuit board of the present invention;
Fig. 3 is the adjustment method process flow diagram of mobile communication data terminal circuit board of the present invention.
Embodiment
Below in conjunction with accompanying drawing, will be described in more detail each preferred embodiment of the present invention.
In the debugging apparatus and method thereof of mobile communication data terminal circuit board of the present invention, described debugging apparatus comprises a circuit board 110, as depicted in figs. 1 and 2, described circuit board 110 is used for mobile communication terminal, as mobile phone etc., in process of production, described circuit board 110 is provided with jtag test interface unit 120, described jtag test interface unit 120 is wholely set with described circuit board 110, and and described circuit board between be provided with syndeton easy to break, be used for 110 tests of described circuit board by after with the removal that fractures of described jtag test interface unit.
Described jtag test interface unit 120 is known by prior art, does not repeat them here; Described syndeton easy to break can be set to several stamp hole structures 121 of row, as shown in Figure 1; It also can be a V-type groove along the broken line position.The JTAG debug point of described jtag test interface unit 120 and test point 122 as shown in Figure 2, are passed the main circuit that is connected to circuit board 110 between the described stamp hole by the circuit board wiring.Like this, circuit board 110 of the present invention in process of production, after passing through circuit test, after being the JTAG debug point and the test of test point employing special signal on the jtag test interface unit 120, if described circuit board 110 is by test, then described jtag test interface unit 120 being fractureed to remove when dispatching from the factory gets final product.
For realizing test, in described jtag test interface unit 120, be provided with model selection, clock, data input and DOL Data Output Line interface etc. by jtag test interface unit 120.The adjustment method of mobile communication data terminal circuit board debugging apparatus of the present invention, as shown in Figure 3, it may further comprise the steps:
301, carry out jtag test by the jtag test interface unit that on circuit board, is wholely set in advance;
If 302 tests are passed through, the circuit board by test is separated described jtag test interface unit from this circuit board.
For realizing the above-mentioned adjustment method of the present invention, in the production run of circuit board of the present invention, need set in advance described jtag test interface unit and be connected by syndetons easy to break such as stamp hole structure or V-type grooves, described jtag test interface unit and described circuit board can be fractureed with circuit board.Certainly, also can cut off being connected of described jtag test interface unit and described circuit board, to remove described jtag test interface unit by a cutting instrument.
Because after test was finished, the described jtag test interface unit on the circuit board of the present invention is not effect, is retained in the volume that needs to take circuit board in the circuit board, the portable terminal after causing assembling is submitted to bigger.And debugging apparatus of the present invention and method can not take the space of circuit board.
Simultaneously, the debugging apparatus of mobile communication data terminal circuit board of the present invention and method thereof realize that by the PCB design and the technological process of production JTAG debugging and test point do not account for the PCB space, can satisfy simultaneously debugging and the dependence test of the JTAG of development and production procedure again, simultaneously can be behind the product export by the JTAG software of divulging a secret, this invention makes the product killing three birds with one stone: save the PCB space, to software privacy, satisfy various debugging and test.
In order to save the PCB space, JTAG debug point and test point all are placed on outside effective PCB scope, as shown in Figure 1; Described JTAG debug point and test point zone separate with stamp hole or V-type groove with the separatrix in effective PCB zone, and the spacing between the stamp hole is moderate.
The line in JTAG debug point of the present invention and test point and efficient circuit plate PCB zone is by the gap between the stamp hole, and will misplace, and when downloading in debugging, test or with JTAG, can directly carry out the special station that is mainly used in research and development and produces; Carry out the branch plate at the suitable station of producing, the described jtag test interface unit that has more JTAG debug point and test point separately from stamp hole (or V-type groove) from described circuit board, Shang Shi product does not just contain jtag interface like this, to the secret fire wall that added one of program, jtag interface is used for development, the consumer is not had in all senses, all is feasible on principle and actual the realization like this.
Should be understood that above-mentioned description at preferred embodiment of the present invention is comparatively concrete, can not therefore think the restriction to scope of patent protection of the present invention, scope of patent protection of the present invention should be as the criterion with claims.
Claims (9)
1, a kind of debugging apparatus of mobile communication data terminal circuit board, it comprises a circuit board, is used for mobile communication terminal; It is characterized in that described circuit board is provided with the jtag test interface unit; Described jtag test interface unit and described circuit board are wholely set, and and described circuit board between be provided with syndeton easy to break, be used for described circuit board testing by after with the removal that fractures of described jtag test interface unit.
2, proving installation according to claim 1 is characterized in that, described syndeton easy to break is several stamp hole structures of row.
3, proving installation according to claim 2, it is characterized in that, described jtag test interface unit is provided with JTAG debug point and test point, and the line between described JTAG debug point and test point and the effective circuit plate zone passes through by the gap between the described stamp hole structure.
4, proving installation according to claim 1 is characterized in that, described syndeton easy to break is a V-type groove.
5, according to the arbitrary described proving installation of claim 1 to 4, it is characterized in that, be provided with model selection, clock, data input and DOL Data Output Line interface in the described jtag test interface unit.
6, a kind of adjustment method of the debugging apparatus of mobile communication data terminal circuit board according to claim 1, it may further comprise the steps:
A, carry out jtag test by the jtag test interface unit that on circuit board, is wholely set in advance;
B, to by the test circuit board described jtag test interface unit is separated from this circuit board.
7, adjustment method according to claim 6 is characterized in that, described step B also comprises: set in advance described jtag test interface unit and be connected by the stamp hole structure with circuit board, then described jtag test interface unit and described circuit board are fractureed.
8, adjustment method according to claim 6 is characterized in that, described step B also comprises: set in advance between described jtag test interface unit and the circuit board and be connected by V-type groove structure, then described jtag test interface unit and described circuit board are fractureed.
9, adjustment method according to claim 6 is characterized in that, described jtag test interface unit cuts off and being connected of described circuit board by a cutting instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101420654A CN101359032B (en) | 2008-08-21 | 2008-08-21 | Debugging device for mobile communication data terminal circuit board and method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101420654A CN101359032B (en) | 2008-08-21 | 2008-08-21 | Debugging device for mobile communication data terminal circuit board and method thereof |
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| Publication Number | Publication Date |
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| CN101359032A true CN101359032A (en) | 2009-02-04 |
| CN101359032B CN101359032B (en) | 2011-07-27 |
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| CN2008101420654A Expired - Fee Related CN101359032B (en) | 2008-08-21 | 2008-08-21 | Debugging device for mobile communication data terminal circuit board and method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199386A (en) * | 2016-07-25 | 2016-12-07 | 苏州福莱盈电子有限公司 | A kind of simple adjustment method of wiring board |
| CN106658947A (en) * | 2016-12-30 | 2017-05-10 | 上海天马有机发光显示技术有限公司 | Flexible circuit board and display panel |
| CN109791176A (en) * | 2017-06-28 | 2019-05-21 | 深圳市柔宇科技有限公司 | Circuit board and multiple-printed-panel for circuit board |
-
2008
- 2008-08-21 CN CN2008101420654A patent/CN101359032B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106199386A (en) * | 2016-07-25 | 2016-12-07 | 苏州福莱盈电子有限公司 | A kind of simple adjustment method of wiring board |
| CN106658947A (en) * | 2016-12-30 | 2017-05-10 | 上海天马有机发光显示技术有限公司 | Flexible circuit board and display panel |
| CN109791176A (en) * | 2017-06-28 | 2019-05-21 | 深圳市柔宇科技有限公司 | Circuit board and multiple-printed-panel for circuit board |
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| Publication number | Publication date |
|---|---|
| CN101359032B (en) | 2011-07-27 |
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Effective date of registration: 20200423 Address after: 8 / F, TCL communication technology building, F4, phase III, TCL International e city, No. 1001, Zhongshan Garden Road, Xili street, Nanshan District, Shenzhen City, Guangdong Province Patentee after: JRD COMMUNICATION (SHENZHEN) Ltd. Address before: 518057 Guangdong city of Shenzhen province Nanshan District South Road Building B block 15 building TCL Patentee before: TCL Communication Technology Holdings Ltd. |
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Effective date of registration: 20201229 Address after: 225700 plant area (Economic Development Zone), 2nd floor, No.2 factory building, Xinghua science and technology entrepreneurship center, Taizhou City, Jiangsu Province Patentee after: Jiangsu JieChuang Enterprise Management Co.,Ltd. Address before: 511400 No.106 Fengze East Road, Nansha District, Guangzhou City, Guangdong Province (self compiled Building 1) x1301-a4845 (cluster registration) (JM) Patentee before: Guangzhou shengxia Intellectual Property Operation Co.,Ltd. Effective date of registration: 20201229 Address after: 511400 No.106 Fengze East Road, Nansha District, Guangzhou City, Guangdong Province (self compiled Building 1) x1301-a4845 (cluster registration) (JM) Patentee after: Guangzhou shengxia Intellectual Property Operation Co.,Ltd. Address before: 8 / F, TCL communication technology building, F4, phase III, TCL International e city, 1001 Zhongshan Yuan Road, Xili street, Nanshan District, Shenzhen, Guangdong 518000 Patentee before: JRD COMMUNICATION (SHENZHEN) Ltd. |
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Effective date of registration: 20220111 Address after: 252000 No. 5 Lushan South Road, Liaocheng High-tech Industrial Development Zone, Shandong Province Patentee after: Shandong Yide Electrical Equipment Engineering Co.,Ltd. Address before: 225700 plant area (Economic Development Zone), 2nd floor, No.2 factory building, Xinghua science and technology entrepreneurship center, Taizhou City, Jiangsu Province Patentee before: Jiangsu JieChuang Enterprise Management Co.,Ltd. |
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Granted publication date: 20110727 |
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