CN217158884U

CN217158884U - JTAG needle seat connecting mechanism

Info

Publication number: CN217158884U
Application number: CN202221069964.8U
Authority: CN
Inventors: 万勤华; 张浩熙; 陈亚峰
Original assignee: Suzhou Jiazhicai Optoelectronics Technology Co ltd
Current assignee: Suzhou Jiazhicai Optoelectronics Technology Co ltd
Priority date: 2022-05-06
Filing date: 2022-05-06
Publication date: 2022-08-09
Anticipated expiration: 2032-05-06

Abstract

The utility model discloses a JTAG needle file coupling mechanism, including the body and with the needle file board of connection can be dismantled to the body, be equipped with a plurality of JTAG interfaces on the needle file board, be equipped with first commentaries on classics interface on the body, be equipped with the connecting wire on the needle file board, a side end of connecting wire with the needle file board is connected, opposite side end be equipped with first commentaries on classics interface complex connecting terminal can reduce the area on the body and occupy, reduces the processing cost of body, reduces the damage of JTAG interface and leads to the unable fault phenomenon of debugging of body, and the security is strong.

Description

JTAG needle seat connecting mechanism

Technical Field

The utility model relates to an embedded product technology field, concretely relates to JTAG needle file coupling mechanism.

Background

JTAG (Joint Test Action group) and joint Test behavior organization, which are composed of a plurality of main electronic manufacturers, and set up PCB and IC Test standards which stipulate the software of hardware required for boundary scan.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects, the utility model aims to provide a JTAG needle seat connecting mechanism, which can effectively avoid the phenomenon that the needle seat is damaged by static electricity, reduce the damage phenomenon, save the cost and improve the safety.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a JTAG needle file coupling mechanism, including the body and with the needle file board of connection can be dismantled to the body, be equipped with a plurality of JTAG interfaces on the needle file board, be equipped with first commentaries on classics interface on the body, be equipped with the connecting wire on the needle file board, one side tip of connecting wire with the needle file board is connected, the opposite side tip be equipped with first commentaries on classics interface complex connecting terminal.

Compared with the prior art, the utility model has the advantages that the JTAG interface is independent from the body by arranging the needle seat plate, only the first interface used for being connected with the needle seat plate is arranged on the body, the area occupation on the body can be reduced, and the complex circuit related to the JTAG interface is not required to be arranged on the body, so that the production cost of the body is reduced, when the JTAG debugging is required to be carried out on the body, the needle seat plate is only required to be connected with the body through the connecting wire, the connection is simple, and the operation is convenient and fast; and because the JTAG interface is a needle seat interface, the JTAG interface is independent from the body, so that the fault phenomenon that the body cannot be debugged due to the damage of the JTAG interface can be prevented, the maintenance cost of the body is reduced, and the needle seat interface has strong practicability and safety.

Exemplarily, be equipped with the second switching mouth on the needle board, the second switching mouth with JTAG interface electric connection, one side tip of connecting wire be equipped with second switching mouth complex connecting terminal, the connecting wire with the needle board passes through second switching mouth and connecting terminal realize being connected. Simple structure and convenient and fast connection.

Exemplarily, a serial port debugging interface is arranged on the needle seat plate, and the serial port debugging interface is electrically connected with the second adapter interface. The body can be debugged through the serial port debugging interface, and the application range of the needle seat plate is widened, so that the embedded equipment or the product which needs to be debugged through the serial port can be suitable for.

Illustratively, the serial port debugging interface is set as a serial port-to-USB interface.

Illustratively, the needle seat plate is provided with a row of needles.

Illustratively, the JTAG interface comprises an insert shell, and one side of the insert shell is provided with a positioning groove. The efficiency of joint access JTAG interface is promoted, and convenient quick location is connected, promotes user's use and experiences.

Illustratively, the number of the JTAG interfaces is four, and the four JTAG interfaces are symmetrically arranged on the needle seat plate in pairs. The whole area of the needle seat plate can be reduced, and the cost is saved.

Illustratively, the number of the JTAG interfaces is four, the first interface is provided with a 41PIN JAE connector female socket, the connection line is provided with a 41PIN coaxial straight connection line, and the connection terminal is provided with a 41PIN JAE connector terminal.

Exemplarily, the terminal angle department on the needle file board is equipped with the trompil, the trompil runs through the needle file board, be equipped with in the trompil and prevent scraping the pad, prevent scraping the pad and include minor diameter portion and major diameter portion, minor diameter portion with trompil interference fit, major diameter portion sets up the needle file board is kept away from one side of JTAG interface. The service life of the needle seat plate is prolonged, and good economic benefits are achieved.

Drawings

FIG. 1 is a schematic view of the overall structure of a preferred embodiment of the present invention;

FIG. 2 is a schematic structural diagram of a connecting wire according to a preferred embodiment of the present invention;

fig. 3 is a schematic structural view of a scratch pad according to a preferred embodiment of the present invention.

In the figure:

10-a body; 11-a first interface; 20-a needle bed plate; 201-opening a hole; 202-anti-scratch pad; 2021-small diameter portion; 2022-large diameter portion; 21-a second adapter; 22-JTAG interface; 221-inserting a shell; 222-a positioning groove; 23-serial port debugging interface; 24-row needles; 30-a connecting line; 31-connecting terminal.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

As shown in fig. 1 and fig. 2, the JTAG pin seat connection mechanism in this embodiment includes a body 10 of an embedded device or product and a pin seat plate 20 disposed on one side of the body 10, the body 10 is detachably connected to the pin seat plate 20, a first rotary interface 11 is disposed on the body 10, a connection line 30 cooperating with the first rotary interface 11 is disposed on the pin seat plate 20, one side end of the connection line 30 is connected to the pin seat plate 20, a connection terminal 31 cooperating with the first rotary interface 11 is disposed on the other side end of the connection line, the connection is achieved with the first rotary interface 11, a plurality of JTAG interfaces 22 are disposed on the pin seat plate 20, an electrical communication connection between the body 10 and the pin seat plate 20 is achieved through the connection line 30, and then an electrical communication connection between the body 10 and the JTAG interface 22 on the pin seat plate 20 is achieved.

As an example of this embodiment, as shown in fig. 1, the JTAG interface 22 includes a plug shell 221, a positioning groove 222 is disposed on one side of the plug shell 221, and the positioning groove 222 is disposed, so that when a connector is connected to the JTAG interface 22, positioning connection can be quickly implemented, damage to the JTAG interface 22 due to a connector misoperation is prevented, and connection efficiency is improved.

As an example of this embodiment, the second adapter 21 is disposed on the wafer board 20, the second adapter 21 is electrically connected to the JTAG interface 22, a connecting terminal 31 that is matched with the second adapter 21 is disposed at an end of the connecting line 30 away from the main body 10, and the connecting terminal 31 is connected to the second adapter 21, so that the structure is simple and the connection is convenient and fast.

As an example of the present embodiment, on the premise of ensuring the size specification, the convenience of use and the cost of the socket board 20, the JTAG interfaces 22 are set to 4, the first interface 11 is set to be a 41PIN JAE connector female socket, the connection line 30 is a 41PIN coaxial straight connection line, and the connection terminal 31 is set to be a 41PIN JAE connector terminal.

As an example of this embodiment, in order to save the space of the needle board 20, the 4 JTAG interfaces are distributed two by two, and are symmetrically disposed on the needle board 20, so as to set up, the area of the needle board 20 can be reduced, and the related circuit pins can be conveniently disposed, the related circuit of the JTAG interface is the prior art, and those skilled in the art can set up according to actual needs.

It should be noted that the number of pins of the JTAG interface 22 can be selected according to actual requirements, in this embodiment, the JTAG interface 22 adopts a 10-pin model, and the definition mode of the pins is selectable by those skilled in the art according to actual requirements, and certainly, the JTAG interface 22 with 14 pins may also be selected, which should not be construed as limiting in this embodiment.

As an example of this embodiment, as shown in fig. 1, be equipped with serial port debugging interface 23 on the needle board 20, serial port debugging interface 23 and second switching interface 21 electric connection, serial port debugging interface 23 sets up to serial port commentaries on classics USB interface, be convenient for needle board 20 and PC end are connected the debugging, and then realize being connected of PC end and body 10, be convenient for carry out the serial port debugging to body 10, so set up, can directly realize serial port commentaries on classics USB's function through needle board 20, need not all additionally set up functional interface and relevant circuit on every body 10, can greatly reduced body 10's manufacturing cost, therefore, the clothes hanger is strong in practicability.

As an example of this embodiment, as shown in fig. 1, a pin header 24 is further disposed on the pin header plate 20, the pin header 24 is disposed on one side of the second adapter 21, and by disposing the pin header 24, it is convenient to measure and debug critical signals, and ensure normal use of the pin header plate 20.

As an example of the present embodiment, the second adapter port 21 and the JTAG interface 22, the second adapter port 21 and the serial port debug interface 23, and the second adapter port 21 and the pin header 24 are connected by wires printed on the pin header 20, and for example, the second adapter port 21 and the serial port debug interface 23 are connected by wires printed on a side of the pin header 20 away from the JTAG interface 22, that is, a bottom surface of the pin header 20.

As an example of this embodiment, as shown in fig. 1 and fig. 3, openings 201 are provided at four corners of the needle hub plate 20, the openings 201 penetrate through the needle hub plate 20, a scratch pad 202 is provided in the openings 201, the scratch pad 202 includes a small diameter portion 2021 and a large diameter portion 2022, the small diameter portion 2021 is in interference fit with the openings 201, the scratch pad 202 is made of rubber, when in use, the small diameter portion 2021 is inserted into the openings 201, so that the large diameter portion 2022 is located on a side of the needle hub plate 20 away from the JTAG interface 22, the large diameter portion 2022 plays a supporting role on the needle hub plate 20, and the bottom of the needle hub plate 20 is prevented from being scratched in use to cause abrasion of a line printed on the bottom surface of the needle hub plate 20, thereby prolonging the service life of the needle hub plate 20.

The working principle of the utility model is as follows:

when the JTAG debugging or the serial port debugging is required to be carried out on the body 10, the first rotary interface 11 of the body 10 is connected with the pin base plate 20 through the connecting line 30, and then the PC or the simulator is connected with the JTAG interface 22 or the serial port debugging interface 23, so that the debugging of the body 10 can be realized, and the operation is simple and convenient; when the body 10 does not need to be debugged, the needle seat plate 20 can be detached and stored in some insulating and antistatic environments, so that the needle seat plate 20 is prevented from being damaged, and even if the needle seat plate 20 is damaged, the replacement cost is low, and the needle seat plate has good economic benefit.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. A JTAG needle seat connecting mechanism is characterized in that: including the body and with the needle file board that the connection can be dismantled to the body, be equipped with a plurality of JTAG interfaces on the needle file board, be equipped with first commentaries on classics interface on the body, be equipped with the connecting wire on the needle file board, a side end of connecting wire with the needle file board is connected, opposite side tip be equipped with first commentaries on classics interface complex connecting terminal.

2. The JTAG hub connection mechanism of claim 1, wherein: the needle seat plate is provided with a second switching port, the second switching port is electrically connected with the JTAG port, one side end of the connecting wire is provided with a connecting terminal matched with the second switching port, and the connecting wire is connected with the needle seat plate through the second switching port and the connecting terminal.

3. The JTAG hub connection mechanism of claim 2, wherein: and a serial port debugging interface is arranged on the needle seat plate and is electrically connected with the second switching interface.

4. The JTAG hub connection mechanism of claim 3, wherein: the serial port debugging interface is a serial port-to-USB interface.

5. The JTAG hub connection mechanism of claim 1, wherein: the needle base plate is provided with a row of needles.

6. The JTAG hub connection mechanism of claim 1, wherein: the JTAG interface comprises an inserting shell, and one side of the inserting shell is provided with a positioning groove.

7. The JTAG hub connection mechanism of claim 1 or 6, wherein: the number of the JTAG interfaces is four, and the four JTAG interfaces are symmetrically arranged on the needle seat plate in pairs.

8. The JTAG hub connection mechanism of claim 1, wherein: the number of the JTAG interfaces is four, a 41PIN JAE connector female seat is arranged on the first interface, the connecting line is a 41PIN coaxial straight connecting line, and the connecting terminal is a 41PIN JAE connector terminal.

9. The JTAG hub connection mechanism of claim 1, wherein: the utility model discloses a needle bar, including needle bar, trompil, needle bar, the last end angle department of needle bar is equipped with the trompil, the trompil runs through the needle bar, be equipped with in the trompil and prevent scraping the pad, prevent scraping the pad and include minor diameter portion and major diameter portion, minor diameter portion with trompil interference fit, major diameter portion sets up the needle bar is kept away from one side of JTAG interface.