CN208126371U - The chip programmer of placement mechanism is adjusted in a kind of integrated size - Google Patents

Abstract

The utility model discloses the chip programmer that placement mechanism is adjusted in a kind of integrated size, indicator light, starting/stop button, the dimension adjustable programming socket being placed in groove and dimension adjustable programming fixture, three communication interfaces are provided on the chip programmer shell；The chip decoder internal is provided with embedded controller, signal switching circuit and executing agency；The dimension adjustable programming pedestal is formed including two longitudinal directions portion, and chip is fixed by two longitudinal directions portion, and longitudinal direction portion can be moved left and right by executing agency；The dimension adjustable programming fixture includes that two transverse parts and two longitudinal directions portion form, wherein there is a transverse part that can move up and down by executing agency, a longitudinal direction can be moved left and right by executing agency.Integrated socket/the grip size of the utility model is adjustable, therefore can be adapted for the chip of different encapsulation, different sizes and different pin numbers；The programming of patch type and direct insertion chip is supported simultaneously, it is applied widely.

Description

The chip programmer of placement mechanism is adjusted in a kind of integrated size

Technical field

The present invention relates to chip programmer technical fields, and the core of placement mechanism is adjusted more particularly to a kind of integrated size Piece programmable device.

Background technique

Burning chip is to pass through specific programming interface (such as I2C, SPI, UART etc. using programmable device (Programmer) Deng) and specific programming protocol, program firmware or configuration data are cured to the nonvolatile memory of electronic product (such as FLASH, EEPROM etc.) in.In actual production process, due to the huge number of chip, the programming side of chip Method is multifarious, while encapsulation, size and the number of pins of chip also tend to the difference with chip model and different, this gives core The programing work of piece brings very big trouble.

Chip package can be divided into direct insertion (DIP, Dual Inline-pin Package) and patch type, such as Fig. 1 institute Show.Direct insertion chip refers to the IC chip encapsulated using dual-in-line form, most middle small scale integrated circuits (IC) this packing forms are all made of, number of pins is usually no more than 100.There are two rows to draw using the cpu chip that DIP is encapsulated Foot needs to be inserted on the chip carrier socket with DIP structure.It is of course also possible to be directly inserted in identical welding hole number and geometry row It is welded on the circuit board of column.DIP encapsulation chip from chip carrier socket plug when answer it is especially careful, in order to avoid damage draw Foot.Another packing forms of chip are patches, and patch is the product of miniaturization of electronic products, micromation, and when being welded, it is not Need via hole, welding surface and device in one side.Such device form is called patch encapsulation.

Burning for direct insertion chip, the general form for using chip carrier socket；Burning for patch type chip, generally Form on programmable device is integrated in using fixture, or adds the form of fixture using chip carrier socket, as shown in Figures 2 and 3.

1, for the programmable device of integrated fixture, the chip programming of patch type can only be supported, if it is desired to support direct insertion core Piece needs to purchase additional programmable device, on the one hand increases cost, on the other hand also brings trouble to the management of equipment.

2, for the programmable device of integrated chip socket, direct insertion and patch type chip can be supported simultaneously.But for patch Chip chip, it is necessary to additionally purchase programming fixture matched with chip.For different patch type chips, different volumes need to be customized Patch type chip is placed into programming fixture, then the contact pin for programming clamp base is connected with pedestal by journey fixture.This mode by In needing to customize a variety of different programming fixtures, with high costs, the management of fixture is also a problem.On the other hand it actually uses In need manpower is dynamic to be attached fixture and programmable device, needed at this time by the interface of all thimbles of fixture and programmable device one by one Alignment, operation difficulty are larger, it is easy to since misalignment causes thimble bending to be even broken, to damage fixture；Finally due to Fixture and programmable device are non-integral, signal be easier due to installation question cause it is unstable, thus influence programming success rate.

3, for the programmable device of integrated chip socket, the direct insertion chip model of support is limited.It is used due to programmable device It is the form of fixed chip socket, all pins of chip are correctly inserted into each terminal of pedestal by when programming, then pass through bottom The switch that seat provides is stuck by chip pin.Because the size of pedestal be it is fixed, all for oversized or too small chip It can not be inserted into, it is therefore possible to need to purchase the programmable device of several different models, to be applicable in the chip of various sizes, increase into This, while the management of equipment is also increasingly complex.

Summary of the invention

The present invention is directed to the deficiency of above-mentioned existing product, and the chip for proposing a kind of adjustable placement mechanism of integrated size is compiled Journey device.

To achieve the purpose of the present invention, the present invention provides the chip programmings that placement mechanism is adjusted in a kind of integrated size Device is provided with indicator light on the chip programmer shell, starting/stop button, the dimension adjustable being placed in groove are compiled Journey socket and dimension adjustable program fixture, three communication interfaces；The chip programmer be internally provided with embedded controller, Signal switching circuit and executing agency；

The dimension adjustable programming pedestal is formed including two longitudinal directions portion, and chip is fixed by two longitudinal directions portion, and one Longitudinal portion can be moved left and right by executing agency；

The dimension adjustable programming fixture includes that two transverse parts and two longitudinal directions portion form, wherein there is a transverse part It can be moved up and down by executing agency, a longitudinal direction can be moved left and right by executing agency.

Compared with prior art, beneficial effects of the present invention are,

1, integrated socket/grip size is adjustable, therefore can be adapted for different encapsulation, different sizes and different pins The chip of quantity；

2, the programming of patch type and direct insertion chip is supported simultaneously, it is applied widely；

3, for direct insertion, since jack sizes are adjustable, it can be adapted for more direct insertion chip models；

4, for patch type, since the programmable device has been embedded in fixture, there is no need to additional fixtures；Additionally, due to folder It is whole to have size adjustable, without purchasing different fixtures for various sizes of patch chip, to reduce costs；

5, fixture and programmable device integration avoid the insecure influence programming success rate of grafting between fixture and programmable device The problem of；

6, easy to use, it is only necessary to select corresponding chip information in upper computer software, programmable device adjust automatically socket or The size of fixture after being put into chip can start that firmware is written by the key on upper computer software or programmable device.

Detailed description of the invention

Fig. 1 show direct insertion in the prior art and patch type appearance diagram；

Fig. 2 show chip carrier socket appearance diagram in the prior art；

Fig. 3 show chip fixture appearance diagram in the prior art；

Fig. 4 show the application and chip socket structure schematic diagram is adjusted；

Fig. 5 show the application adjustable core plate clamp structural schematic diagram；

Fig. 6 show the appearance diagram of the application chip programmer；

Fig. 7 show the application chip programmer internal structure chart；

Fig. 8 show the installation of the application chip programmer chip, programming step schematic diagram；

Fig. 9 show the application signal switching circuit operation principle schematic diagram；

Figure 10 show the single CD4051 of the application and realizes that 8 road transfer principles diagram is intended to；

Figure 11 show two CD4051 of the application and realizes 16 road transfer principle figures；

Figure 12 show the application stepper motor driving circuit working principle diagram；

Figure 13 show the application embedded controller schematic diagram.

Specific embodiment

The present invention is described in further detail below in conjunction with the drawings and specific embodiments.It should be appreciated that described herein Specific embodiment be only used to explain the present invention, be not intended to limit the present invention.

It should be noted that " connection " described herein and the word for expressing " connection ", as " being connected ", " connected " etc. had both included that a certain component is directly connected to another component, and had also included that a certain component passes through other component and another portion Part is connected.

It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular Also be intended to include plural form, additionally, it should be understood that, when in the present specification using belong to "comprising" and/or " packet Include " when, indicate existing characteristics, step, operation, component or module, component and/or their combination.

It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, " Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein for example can be in addition to herein Sequence other than those of diagram or description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that Be to cover it is non-exclusive include, for example, containing the process, method, system, product or equipment of a series of steps or units not Those of be necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes, side The intrinsic other step or units of method, product or equipment.

For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ", " ... upper surface ", " above " etc., for describing such as a component shown in the figure or module or feature and other The spatial relation of component or module or feature.It should be understood that spatially relative term be intended to comprising in addition to component or Different direction in use or operation except orientation of person's module described in figure.For example, if component in attached drawing Perhaps module is squeezed, be described as " above other component or module or construction " or " in other component or module or On construction " component or module after will be positioned as " below other component or module or construction " or " at other Under component or module or construction ".Thus, exemplary term " ... top " may include " ... top " and " in ... lower section " two kinds of orientation.The component or module can also be positioned with other different modes (to be rotated by 90 ° or in other Orientation), and respective explanations are made to the opposite description in space used herein above.

It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase Mutually combination.

Fig. 4-13 is the relevant schematic diagram of the present invention；

The present invention combines research and development experience and existing product in electronic product assembly line chip programmer existing in production line The use feedback of field proposes a kind of design scheme of the chip programmer of adjustable placement mechanism of integrated size.The program can So that programmable device supports the programming of patch type and contact pin type chip simultaneously, while it can support different encapsulation, size and pin The chip programming of number.For direct insertion chip, since jack sizes are adjustable, can be adapted for more direct insertion Chip model；For the chip of patch type, fixture is individually bought again without additional, not only saves cost, but also improve reliability, Simultaneously because grip size is adjustable, therefore it can be adapted for more patch type chip models.

The chip programmer includes the direct insertion chip carrier socket and patch type chip fixture of at least one dimension adjustable, control The executing agency of chip carrier socket processed and grip size, embedded controller, signal switching circuit, shell, indicator light, key and Communication interface composition.

Wherein, dimension adjustable fixture:Be made of two transverse parts and two longitudinal directions portion, wherein have a transverse direction can more than Lower movement, a longitudinal direction can move left and right, and moveable part is changed chip in this way and inserted by actuating mechanism controls The size of seat/fixture, to adapt to the chip of different sizes and number of pins, as shown in Fig. 4.

Wherein, the dimension adjustable programming pedestal is formed including two longitudinal directions portion, and chip is fixed by two longitudinal directions portion, One longitudinal direction portion can be moved left and right by executing agency；

It should be noted that longitudinal portion and transverse part described above inserting compared with the unadjustable size in technology Seat is identical with the component of fixture, is plastic material, increases chip pin contact on plastic material, and only, the application increases The component part of above-mentioned socket and fixture is arranged in executing agency, by executing agency drives its shifting by executing agency It is dynamic；Therefore, the shape at this to transverse part and longitudinal direction portion and specific structure etc. be not described in detail.

Executing agency：Signal is issued by embedded controller to be controlled, and driving mechanism is allowed to drive pedestal/fixture Longitudinal portion move left and right, lateral part moves up and down.Executing agency is made of stepper motor and driving circuit, driving circuit Schematic diagram is as shown in figure 12.

It should be noted that the connection type in stepper motor and mobile transverse part or longitudinal direction portion, can use, in stepping Lead screw is connected on the output shaft of motor, in transverse part and longitudinal subordinate end attaching nut, lead screw is connect with nut thread, by defeated Shaft rotation, drives movement；Specific installation position is carried out according to actual design, according to common knowledge and simple experiment, Without being described in detail.

Embedded controller：As shown in Figure 4, Figure 5, by communication interface obtain chip information (type, encapsulation, size, Model programs communication interface, programming protocol, program voltage etc.) and it is written to the firmware of chip, according to the chip of acquisition letter Breath, output signal controls executing agency, so that the moveable part for controlling pedestal or fixture is moved left and right and is moved up and down, so that Adjust adjustable frames and fixture to suitable selected chip size.The institute that control signal switching circuit needs chip programming There is the contact in signal correct switch to pedestal/fixture, it is programmed using the identifiable programming protocol of the chip, is judged simultaneously Program success or not.

For embedded controller based on single-chip microcontroller, schematic diagram is as shown in figure 13.If the maximum number of contacts of chip carrier socket increases Add, then the model that the series monolithic can be used more high-end, to guarantee CD4051 used by there are enough I/O ports to support.Example If chip carrier socket maximum contact is 16, then every kind of signal needs 2 CD4051, needs 6 single-chip I/O mouths altogether, and four kinds of signals are total Need 24 single-chip I/O mouths；If chip carrier socket most chef point is 32, every kind of signal needs 4 CD4051, needs 8 lists altogether Piece machine I/O port, four kinds of signals need 32 single-chip I/O mouths altogether.

Signal switching circuit：Can by the power supply of embedded controller, signal wire etc. switches respectively according to chip information Each correct contact onto programming pedestal/fixture.Signal switching circuit based on the single-ended 8 channel variable connector of CD4051, The chip carrier socket of different maximum contacts can be met by using the CD4051 combination of different number.For example, for The two different encapsulation of 24C512, number of pins is different, and as shown in Fig. 9,8-PIN PDIP is 8 pins, then pedestal or folder Tool should be moved into two column each columns, four contacts, and size and the chip are strictly corresponding；And the SOIC of 20-PIN is 20 pins, So pedestal or fixture should be moved into two column each columns, 10 contacts, and size is strictly corresponding with chip.

Wherein, each contact and signal switching circuit of dimension adjustable programming pedestal and dimension adjustable programming fixture Output end be connected, for model difference of the same race encapsulation or different model chip, the definition of pin number and each pin May be different, for example for model 1, contact 1 is VCC, and for model 2, VCC just needs signal but in contact 4 Correct signal is switched to each contact up from embedded controller by switching circuit.Embedded controller root in programmable device According to the chip information of acquisition, be automatically positioned all signals that chip programming needs (power pins, wire pin, signal wire pin Deng) in pedestal or the correct contact position of fixture, and pass through the signal switching circuit outside embedded controller for embedded control The corresponding signal of device processed is correctly connect with adjustable programming pedestal/fixture contact.Signal switching circuit is logical with CD4051 single-ended 8 Based on road variable connector, the chip carrier socket of different maximum contacts can be met by using the CD4051 combination of different number. Such as the chip carrier socket that maximum contact is 8, using 4 CD4051, wherein each CD4051 is fetched respectively from single-chip microcontroller VCC, GND, data-signal (I/O port simulation) and clock signal (IO simulation), as shown in Figure 10.If the core that maximum contact is 16 Piece socket then uses 8 CD4051, two mono- group of CD4051, passes through enable end INH and the addressing end of each CD4051 of control A, the switching of 16 paths can be realized, as shown in figure 11 in B, C.Each type signal (VCC, GND, clock signal and data Signal) same channels number (1 channel of output of such as each CD4051) be connected to the contact (such as 1 of the identical number of chip carrier socket Number contact), the signal of the contact is transported to by the process control of controller, such as signal of certain chip on contact 1 is answered It should be VCC, then VCC signal is switched to 1 channel of output by being responsible for the 4051 of switching VCC by the program of controller, and is responsible for cutting Change GND, the enable end of the CD4051 of data-signal and clock signal is to forbid.

Embedded controller in programmable device is according to the chip information of acquisition, come detection chip by way of detecting automatically Whether the direction placed on pedestal or fixture is correct, avoids placing the adverse consequences that mistake causes wafer damage；Automatic detection Mode be：Embedded controller sends read command to chip and is determining chip placement direction just if receiving correct data Really, if data continuously can not be received three times, determining chip placement direction mistake, embedded controller cuts off the power supply of chip, To avoid wafer damage.

Embedded controller in programmable device simulates the programming protocol of chip support by the I/O port that itself is integrated Chip is written by the I/O port in timing, the firmware that will acquire.

Pass through the information of the available programming success or failure of the state of indicator light on programmable device.

Indicator light：One power supply indicator, is powered and is always on for red, otherwise to go out；One status indicator lamp, when programming be Green flashing programs successfully as evergreen, program fail Chang Hong.

Key：Starting/stopping programming action.In the initial state, press the button embedded controller start to chip into Row programming；Under programming state, presses the button embedded controller stopping and chip is programmed.

Communication interface：USB, serial ports, Ethernet interface.USB is the power supply port of the programmable device, while programmable device can pass through USB, serial ports and Ethernet interface receive chip information, chip to be written firmware, start stop the instruction of programming；Send programming The feedback of success or failure.

It is illustrated in figure 8 the installation of the application chip programmer chip, programming step schematic diagram：

1, according to the chip information of acquisition, what automatic positioning chip programming needed owns the embedded controller in programmable device The position (power pins, wire pin, signal wire pin etc.) of signal simultaneously switches electricity by the signal outside embedded controller The corresponding signal of embedded controller is attached thereto by road；As shown in figure 9, the 8-PIN PDIP of 24C512, pin 1 and 2 is ground Location pin, pin 4 are ground wire, and pin 5 is the data line of I2C, and pin 6 is the clock line of I2C, and pin 7 is write-protect, pin 8 For the VCC that powers.The VCC of embedded controller should be switched to the contact 8 of socket or fixture, GND switching by signal switching circuit To contact 4, contact 3 should disconnect signal, other contacts connect the I/O port of embedded controller.If it is 20-PIN SOIC, GND reform into contact 10, and VCC reforms into contact 20, and I2C signal/clock line becomes contact 11/12, and write-protect becomes to touch Point 19, each signal of embedded controller should be switched to respectively different contacts by signal switching circuit at this time；

2, chip is put into programming pedestal or fixture；

3, " starting to program " order is received by communication interface, or presses " starting to program " the button progress chip of lower casing Programming, embedded controller is powered to programming pedestal or fixture at this time；

4, whether embedded controller detection chip direction first places correctly, for direct insertion chip, it is easy to put Direction is set to turn upside down；It for the patch type chip of square, is also easy to place mistake, is easy to damage chip at this time.Such as Shown in Fig. 9, the correct placement direction of 8-PIN PDIP upward, marks semicircle if once missed for the semicircular mark on chip Downward, then that the contact 4 (GND) of socket or fixture actually connects is the VCC of chip to note, and what contact 8 (VCC) was actually connected is The GND of chip is not only unable to complete chip programming and also results in wafer damage.Embedded controller is read by sending to chip Whether the mode of order detects position correct, if chip is reactionless, retransmits three times, reactionless, then it is wrong to determine that chip is placed Accidentally, pedestal or fixture power failure are programmed at this time；If chip can be responded correctly, it is correct to illustrate that chip is placed；

5, if it is determined that chip is placed correctly, the embedded controller in programmable device uses itself according to the chip information of acquisition The I/O port of carrying simulates the erasing order timing of the chip, and the firmware that will acquire after wiping successfully is written by the I/O port Chip, write-in, which finishes, is read back check, and verifying successfully side is to program successfully.

The above is only a preferred embodiment of the present invention, it is noted that for the common skill of the art For art personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications Also it should be regarded as protection scope of the present invention.

Claims (7)

1. the chip programmer that placement mechanism is adjusted in a kind of integrated size, which is characterized in that on the chip programmer shell It is provided with indicator light, starting/stop button, the dimension adjustable programming socket being placed in groove and dimension adjustable programming folder Tool, three communication interfaces；The chip programmer is internally provided with embedded controller, signal switching circuit and executes machine Structure；

The dimension adjustable programming pedestal is formed including two longitudinal directions portion, and chip is fixed by two longitudinal directions portion, a longitudinal direction Portion can be moved left and right by executing agency；

The dimension adjustable programming fixture includes that two transverse parts and two longitudinal directions portion form, wherein there is a transverse part that can lead to It crosses executing agency to move up and down, a longitudinal direction can be moved left and right by executing agency.

2. the chip programmer that placement mechanism is adjusted in integrated size according to claim 1, which is characterized in that described to hold Row mechanism includes stepper motor and driving circuit, and longitudinal portion for the adjustable programming pedestal of driving dimensions is mobile, alternatively, being used for Longitudinal portion of the adjustable programming fixture of driving dimensions moves left and right, lateral part moves up and down.

3. the chip programmer that placement mechanism is adjusted in integrated size according to claim 1, which is characterized in that described embedding Enter formula controller for sending control signal to executing agency.

4. the chip programmer that placement mechanism is adjusted in integrated size according to claim 1, which is characterized in that the letter Number switching circuit be used for by the power supply of embedded controller, signal wire, be switched to respectively according to chip information programming pedestal/ Each correct contact on fixture.

5. the chip programmer that placement mechanism is adjusted in integrated size according to claim 1, which is characterized in that the finger Show that lamp includes a power supply indicator, the power supply indicator energization is always on for red, otherwise to go out；One status indicator lamp, It is green flashing when programming, programs successfully as evergreen, program fail Chang Hong.

6. the chip programmer that placement mechanism is adjusted in integrated size according to claim 1, which is characterized in that described to open Dynamic/stop button is for starting/stops programming action.

7. the chip programmer that placement mechanism is adjusted in integrated size according to claim 1, which is characterized in that described logical Communication interface includes USB, serial ports, Ethernet interface, power supply port of the USB for the chip programmer, while USB, serial ports and ether Network interface for programmable device receive chip information, chip to be written firmware, start stop programming instruction；Transmission programs successfully Or the feedback of failure.