CN200976036Y - ATCA structure based JTAG testing device - Google Patents
ATCA structure based JTAG testing device Download PDFInfo
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- CN200976036Y CN200976036Y CN 200620158781 CN200620158781U CN200976036Y CN 200976036 Y CN200976036 Y CN 200976036Y CN 200620158781 CN200620158781 CN 200620158781 CN 200620158781 U CN200620158781 U CN 200620158781U CN 200976036 Y CN200976036 Y CN 200976036Y
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- jtag
- jtag test
- atca
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Abstract
The utility model provides a JTAG testing device based on an ATCA infrastructure, comprising a JTAG tester and a JTAG test board; wherein the JTAG test board is composed of a PCB substrate, a socket on the PCB substrate and a connector which is connected with the front board of the detected JTAG; the JTAG tester is connected with the JTAG test board through the socket. Besides, the utility model also provides the JTAG test board for the testing device. The testing device using the JTAG test board has the advantages of high safety, diagnostic and location function, and volume testing the front board of the JTAG, increasing the efficiency of testing.
Description
Technical field
The utility model relates to the communications field, relate in particular to a kind of based on the ATCA framework the jtag test device and be used for the jtag test plate of this proving installation.
Background technology
IEEE 1149.1 boundary scan testing standards are called JTAG (Joint Test ActionGroup) standard usually again, and the architecture of test access mouth and boundary scan body is described and stipulated to this standard in detail, is a kind of international standard test protocol.
Present most high-grade device is all supported the JTAG agreement, as digital signal Processing (DSP, Digital SignalProcessing), field programmable gate array (FPGA, Field Programmable Gate Array) device etc.The jtag interface of standard is four lines, be defined as test pattern respectively and select (TMS, Test ModeSelect), test clock (TCK, Test Clock), test data input (TDI, Test Data Input) and test data output (TDO, Test Data Output) line.In five line interfaces, there is one to be test reset signal (TRST, Test Reset) line, be optional.
The basic functions of JTAG is to be used for chip is tested, and ultimate principle is at a device inside definition test access mouth (TAP, Test Access Port), by the jtag test instrument of special use the internal node of chip is tested.Jtag test allows a plurality of devices to be cascaded by jtag interface, forms a JTAG chain, realizes each device is tested respectively.At present, jtag interface also is usually used in realizing online programming (ISP, In-System Programmable), and devices such as FLASH are programmed.The JTAG programming mode is an online programming, and the traditional mode of production flow process is earlier chip to be carried out pre-programmed, and then installs on the plate; After adopting the JTAG mode, flow process is greatly simplified, and directly by the JTAG mode device is carried out the JTAG online programming, thus speed production and project progress greatly.
At existing each advanced telecom counting system structure (ATCA, Advanced TelecommunicationsComputing Architecture) in the veneer, the whole employing at the ATCA front card of mode of realizing jtag test mounts JTAG socket of placement on the face, the jtag test instrument is connected on this JTAG socket, as shown in Figure 1.Jtag interface device on the plate converges and is connected to become a daisy chain, and the jtag test instrument carries out boundary scan testing by this interface to the device of each device in the JTAG daisy chain or appointment.
Yet above-mentioned prior art also has the following disadvantages:
At first, be unsuitable for carrying out batch testing.This is because jtag test instrument and veneer are one to one, therefore can only test one by one, does not therefore support batch testing.
Secondly, the system that is not supported in tests.Because in system testing is when veneer moves, and can test under the situation that does not plug veneer.And prior art needs the outage of ATCA front card when connecting the jtag test instrument, connects to power up after correct again, and can't support full frame test.
In addition, each veneer JTAG socket position and direction disunity are put and are differed greatly, and the connected mode complexity connecting line length of jtag test instrument has been proposed different requirements, and this pluggable mode causes easily connector to damage or electric fault.
The utility model content
The technical problems to be solved in the utility model be to provide a kind of based on the ATCA framework the jtag test device and be used for the jtag test plate of this proving installation, can realize batch testing, improve testing efficiency.
The technical scheme that realizes the utility model purpose is as follows:
A kind of jtag test device based on the ATCA framework comprises the jtag test instrument, wherein, also comprises: the jtag test plate; Described jtag test plate comprises the PCB substrate and socket that is provided with and the plug connector that can be connected with ATCA front card to be measured on this PCB substrate; Described jtag test instrument is connected with this jtag test plate by this socket.
Preferably, described plug connector comprises some groups of jtag test terminals, and the group number of this terminal can freely define according to the number of JTAG daisy chain in the ATCA front card to be measured.
Preferably, described plug connector can with the plug connector of this ATCA front card to be measured directly to inserting.
Preferably, described plug connector and socket are separately positioned on the different ends limit of this jtag test plate.
Preferably, described plug connector and socket are separately positioned on the opposite end of this jtag test plate.
A kind of jtag test plate of using based on the jtag test device of ATCA framework wherein, comprises the PCB substrate and socket that can be connected with the jtag test instrument that is provided with and the plug connector that can be connected with ATCA front card to be measured on this PCB substrate.
Preferably, described plug connector comprises some groups of jtag test terminals, and the group number of this terminal can freely define according to the number of JTAG daisy chain in the ATCA front card to be measured.
Preferably, described plug connector can with the plug connector of this ATCA front card to be measured directly to inserting.
Preferably, described plug connector and socket are separately positioned on the different ends limit of this jtag test plate.
Preferably, described plug connector and socket are separately positioned on the opposite end of this jtag test plate.
Compared with prior art, the utlity model has following beneficial effect:
The utility model provides a kind of jtag test plate (that is ATCA back card/back board) that is used for jtag test, by plug connector and socket are set, can be connected with ATCA front card to be measured and jtag test instrument respectively.Like this, by designing a kind of very simple ATCA back card/back board, be easy to the signal wire of ATCA front card to be measured is guided on the socket of ATCA back card/back board panel, and can connect the jtag test instrument easily, the not test under the powering-off state in system of ATCA front card be can support, thereby the reliability and the testing efficiency of test improved greatly.
In addition, connector of the present utility model is drawn many group jtag test terminals, can support the test of a plurality of JTAG daisy chains of ATCA front card, the ATCA front card can be according to the JTAG number of devices on the plate and the difference of driving force, and then the JTAG terminal of number (being expressed as the n group) is on the same group used in design.This design both can be supported strand, and also can integrate all single JTAG chains become a big JTAG daisy chain, very flexible, and when jtag test is unusual, by this mode fault location place easily.
Therefore, adopt the utility model jtag test device, can support the test of different ATCA front cards very flexibly, have good versatility, reduce testing cost, increase work efficiency.
Description of drawings
Fig. 1 is the synoptic diagram that existing ATCA front card is realized jtag test;
Fig. 2 is the apparatus structure synoptic diagram that the utility model is realized jtag test;
Fig. 3 is the utility model ZONE3 zone J3x/P3x connector synoptic diagram;
Fig. 4 is the synoptic diagram that the utility model jtag test device is tested the ATCA front card.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described.
The utility model is on the basis of satisfying the ATCA standard, the jtag test plate that the design jtag test is used is (for corresponding with ATCA front card to be measured, also the jtag test plate can be called the ATCA back card/back board, as follows), and be configured for testing the jtag test device of ATCA front card, thereby satisfy the function such as JTAG debugging, diagnosis, programming of all ATCA front cards with the jtag test instrument.
At first, with reference to figure 1, simply introduce the formation of ATCA front card to be measured.In the ATCA framework, the connector of ATCA front card comprises three zones, i.e. Zone1, Zone2, Zone3.Wherein all terminals in Zone1, Zone2 zone all define in the ATCA standard, provide-the 48V power supply, IPMB bus and business data transmission signal, the connector in these two zones is connected on the ATCA backboard, communicates and data transfer by ATCA backboard and other ATCA veneer; And Zone3 zone does not have with backboard and is connected, and is optional during design.
Below, as shown in Figure 2, introduce the composition of jtag test plate and jtag test device respectively.This jtag test plate comprises PCB substrate and the plug connector and the socket that are provided with on this PCB substrate, wherein anterior plug-in is used for being connected with ATCA front card to be measured, and socket is used for being connected with the jtag test instrument.This plug connector is set to corresponding with the Zone3 of ATCA front card to be measured, with make things convenient for this jtag test plate and ATCA front card to inserting.When actual fabrication, plug connector and socket can be separately positioned on the different ends limit of this jtag test plate.For convenience being connected of ATCA front card and jtag test instrument, preferably as shown in Figure 2, be arranged on the opposite end of jtag test plate.As for the jtag test device, then comprise this jtag test plate and coupled jtag test instrument.This jtag test instrument is that general jtag test instrument gets final product, and does not have special provision in the utility model.
In the ATCA standard, the Zone3 connector generally adopts the connector identical with the Zone2 zone by User Defined in the realization.According to the difference of using the connector number, connector is expressed as J30/P30, J31/P31, J32/P32 etc. respectively, and for simplicity, this paper is denoted as J3x/P3x, x=0,1 ....The special-purpose jtag test signal terminal of definition among some connector J3x/P3x in Zone3, as shown in Figure 3.
As shown in table 1 again, be the jtag test signal of Zone3 connector J3x/P3x.Wherein, " the * * * " in the table, expression keeps or self-defining other signal.Need illustrate a bit at this, i.e. this table 1 pair elaboration and signal that the outlet of connector signal is carried out, just be used for helping to understand the utility model and core concept thereof, the utility model does not limit concrete row number and the right particular location of differential lines, and table 1 is described only to be a specific embodiment of the present utility model.
Table 1:
| Capable number | The J3x/P3x differential lines is right | |||||||
| a | b | c | d | e | f | g | h | |
| 1 | TDO1 | TDI1 | TRST1 | TMS1 | TCK1 | *** | *** | *** |
| 2 | TDO2 | TD12 | TRST2 | TMS2 | TCK2 | *** | *** | *** |
| 3 | TDO3 | TDI3 | TRST3 | TMS3 | TCK3 | *** | *** | *** |
| ...... | ...... | ...... | ...... | ...... | ...... | *** | *** | *** |
| N | TDOn | TDIn | TRSTn | TMSn | TCKn | *** | *** | *** |
| *** | *** | *** | *** | *** | *** | *** | *** | |
At last, reference table and shown in Figure 4, as follows to the procedure declaration that adopts the utility model jtag test device that the ATCA front card is tested.
In the ATCA framework, the connector of ATCA front card comprises 3 zones, Zone1, Zone2, Zone3, wherein Zone3 zone does not have with backboard and is connected, optional during design, by the Zone3 zone, the user can design self-defining ATCA back card/back board, and the ATCA back card/back board is only undertaken by the Zone3 district with whole signals that are connected of ATCA front card.
In table 1, the utility model J3x/P3x connector is drawn many group jtag test terminals, can support the test of a plurality of JTAG daisy chains of ATCA veneer, the ATCA front card can be according to the JTAG number of devices on the plate and the difference of driving force, and then design and use the JTAG terminal of number (being expressed as the n group) on the same group, as shown in Figure 4.This design both can be supported strand, and also can integrate all single JTAG chains become a big JTAG daisy chain, very flexible, and when jtag test is unusual, by this mode fault location place easily.
Like this, by designing a kind of very simple ATCA back card/back board, these signal wires are guided on the socket of ATCA back card/back board panel, can connect the jtag test instrument easily, can support ATCA front card test, reliability and testing efficiency height under the powering-off state not in system like this.
Above-described the utility model embodiment does not constitute the qualification to the utility model protection domain.Any any modification of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the claim protection domain of the present utility model.
Claims (10)
1, a kind of jtag test device based on the ATCA framework comprises the jtag test instrument, it is characterized in that, also comprises: the jtag test plate; Described jtag test plate comprises the PCB substrate and socket that is provided with and the plug connector that can be connected with ATCA front card to be measured on this PCB substrate; Described jtag test instrument is connected with this jtag test plate by this socket.
2, proving installation as claimed in claim 1 is characterized in that: described plug connector comprises some groups of jtag test terminals, and the group number of this terminal can freely define according to the number of JTAG daisy chain in the ATCA front card to be measured.
3, proving installation as claimed in claim 1 or 2 is characterized in that: described plug connector can with the plug connector of this ATCA front card to be measured directly to inserting.
4, proving installation as claimed in claim 1 is characterized in that: described plug connector and socket are separately positioned on the different ends limit of this jtag test plate.
5, proving installation as claimed in claim 4 is characterized in that: described plug connector and socket are separately positioned on the opposite end of this jtag test plate.
6, a kind of jtag test plate of using based on the jtag test device of ATCA framework, it is characterized in that, comprise the PCB substrate and socket that can be connected that on this PCB substrate, is provided with and the plug connector that can be connected with ATCA front card to be measured with the jtag test instrument.
7, jtag test plate as claimed in claim 6 is characterized in that: described plug connector comprises some groups of jtag test terminals, and the group number of this terminal can freely define according to the number of JTAG daisy chain in the ATCA front card to be measured.
8, as claim 6 or 7 described jtag test plates, it is characterized in that: described plug connector can with the plug connector of this ATCA front card to be measured directly to inserting.
9, jtag test plate as claimed in claim 6 is characterized in that: described plug connector and socket are separately positioned on the different ends limit of this jtag test plate.
10, proving installation as claimed in claim 9 is characterized in that: described plug connector and socket are separately positioned on the opposite end of this jtag test plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620158781 CN200976036Y (en) | 2006-12-07 | 2006-12-07 | ATCA structure based JTAG testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620158781 CN200976036Y (en) | 2006-12-07 | 2006-12-07 | ATCA structure based JTAG testing device |
Publications (1)
| Publication Number | Publication Date |
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| CN200976036Y true CN200976036Y (en) | 2007-11-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620158781 Expired - Lifetime CN200976036Y (en) | 2006-12-07 | 2006-12-07 | ATCA structure based JTAG testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009074033A1 (en) * | 2007-12-10 | 2009-06-18 | Huawei Technologies Co., Ltd. | A method and system for expanding micro telecom computing architecture microtca |
| CN102255773A (en) * | 2011-06-27 | 2011-11-23 | 中兴通讯股份有限公司 | Method for testing back board signal of communication equipment and testing board |
| CN103092266A (en) * | 2011-11-01 | 2013-05-08 | 中国科学院声学研究所 | Universal server based on ATCA (advanced telecom computing architecture) mainboard and customized rear transmission board |
-
2006
- 2006-12-07 CN CN 200620158781 patent/CN200976036Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009074033A1 (en) * | 2007-12-10 | 2009-06-18 | Huawei Technologies Co., Ltd. | A method and system for expanding micro telecom computing architecture microtca |
| US8601320B2 (en) | 2007-12-10 | 2013-12-03 | Huawei Technologies Co., Ltd. | Method and system for expanding micro telecom computing architecture |
| CN102255773A (en) * | 2011-06-27 | 2011-11-23 | 中兴通讯股份有限公司 | Method for testing back board signal of communication equipment and testing board |
| CN103092266A (en) * | 2011-11-01 | 2013-05-08 | 中国科学院声学研究所 | Universal server based on ATCA (advanced telecom computing architecture) mainboard and customized rear transmission board |
| CN103092266B (en) * | 2011-11-01 | 2016-08-10 | 中国科学院声学研究所 | A kind of based on the generic server transmitting plate after ATCA mainboard and user's customization |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20071114 |
|
| EXPY | Termination of patent right or utility model |