CN203673831U - EEPROM on-line burning circuit and conditioner - Google Patents
EEPROM on-line burning circuit and conditioner Download PDFInfo
- Publication number
- CN203673831U CN203673831U CN201320849474.4U CN201320849474U CN203673831U CN 203673831 U CN203673831 U CN 203673831U CN 201320849474 U CN201320849474 U CN 201320849474U CN 203673831 U CN203673831 U CN 203673831U
- Authority
- CN
- China
- Prior art keywords
- resistance
- eeprom
- burning
- circuit board
- eeprom chip
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model belongs to the technical field of industrial control, and provides an EEPROM on-line burning circuit and a conditioner. The adopted EEPROM on-line burning circuit comprises a burning interface, a diode D1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5 and a sixth resistor R6. As the burning operation is needed to be performed to an EEPROM chip, the burning interface is connected with an outer programmer through a patch cord, and the on-line burning operation performed on the EEPROM chip on a PCB circuit board is realized through the programmer according to the control of an upper computer, so that the quick burning operation is realized, the burning operation efficiency is improved, and the EEPROM on-line burning circuit is suitable for burning operation performed on large quantities of EEPROM chips, and cannot damage devices on the periphery of the EEPROM chip and the PCB circuit board.
Description
Technical field
The utility model belongs to industry control technical field, relates in particular to a kind of EEPROM online burning circuit and air conditioner.
Background technology
At industrial control field, the normal work of most electric equipments all depends on and presets various parameters, and these parameters are to be all often stored in EEPROM(Electrically Erasable Programmable Read-Only Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)) in, these parameters play a very important role for the reliability operation of system.If these parameters of electric equipment cannot meet user's user demand, or while there are other risks, need correspondingly to change the parameter in EEPROM, system condition is corrected or made system return to reliable running status.
In the prior art, the method that the parameter in EEPROM is changed is that EEPROM is disassembled from PCB circuit board, and then by programmable device, EEPROM is carried out, after burning operation, finally EEPROM being welded on PCB again.
Although above-mentioned prior art can realize, the parameter in EEPROM is changed, but the EEPROM that burning is good again need to be welded on PCB circuit board, be easy to damage the peripheral devices of EEPROM, and for multilayer PCB circuit board, what for to the damage that can cause PCB circuit board; In addition, need to carry out the burning operation again of batch ground to EEPROM if run into, can cause operating efficiency low, waste a large amount of man power and materials.Therefore, prior art easily causes peripheral devices and/or PCB circuit board damage in the time that the EEPROM after burning is again welded back to PCB circuit board, and operating efficiency in the time EEPROM being carried out to property burning operation is in batches low.
Utility model content
The purpose of this utility model is to provide a kind of EEPROM online burning circuit, be intended to solve prior art and easily cause peripheral devices and/or PCB circuit board damage in the time that the EEPROM after burning is again welded back to PCB circuit board, and the low problem of operating efficiency in the time EEPROM being carried out to property burning operation in batches.
The utility model is achieved in that a kind of EEPROM online burning circuit, and it is arranged on PCB circuit board, and is connected with the eeprom chip on described PCB circuit board; In the time that needs carry out burning operation to described eeprom chip, described EEPROM online burning circuit also connects programmable device by patchcord, and described programmable device is also connected with host computer;
Described EEPROM online burning circuit comprises:
Burning interface, diode D1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5 and the 6th resistance R 6;
In the time that needs carry out burning operation to described eeprom chip, described burning interface is connected with described programmable device by patchcord;
Power supply described in the anodic bonding of described diode D1 on PCB circuit board, the power end of the negative electrode of described diode D1 and described burning interface, the first end of described the first resistance R 1, the first end of the first end of described the second resistance R 2 and described the 3rd resistance R 3 is connected to the supply pin of described eeprom chip altogether, the earth terminal ground connection of described burning interface, the clock end of described burning interface, data terminal and write-protect input end connect respectively the first end of described the 4th resistance R 4, the first end of the first end of described the 5th resistance R 5 and described the 6th resistance R 6, the second end of the second end of described the 4th resistance R 4 and described the first resistance R 1 is connected to the clock input pin of described eeprom chip altogether, the second end of the second end of described the 5th resistance R 5 and described the second resistance R 2 is connected to the data input pin of described eeprom chip altogether, the second end of the second end of described the 6th resistance R 6 and described the 3rd resistance R 3 is connected to the write-protect input pin of described eeprom chip altogether, the first empty pin of described eeprom chip, the second empty pin, the 3rd empty pin and grounding leg are connected to ground altogether.
Another object of the present utility model is also to provide a kind of air conditioner, and described air conditioner has a PCB circuit board, and eeprom chip is arranged on described PCB circuit board, and described air conditioner also comprises above-mentioned EEPROM online burning circuit.
The utility model comprises burning interface by employing, diode D1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the EEPROM online burning circuit of the 5th resistance R 5 and the 6th resistance R 6, in the time that needs carry out burning operation to eeprom chip, burning interface is connected to outside programmable device by patchcord, can realize and the eeprom chip on PCB circuit board is carried out to online burning operate according to the control of host computer by programmable device, do not need eeprom chip to disassemble from PCB circuit board, and after completing, burning welds back PCB circuit board, thereby realize the operation of online burning fast, improve burning operating efficiency, be applicable to large batch of eeprom chip to carry out burning operation, and can not cause damage to the peripheral devices of eeprom chip and PCB circuit board.
Accompanying drawing explanation
Fig. 1 is the circuit structure diagram of the EEPROM online burning circuit that provides of the utility model embodiment.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 1 shows the circuit structure of the EEPROM online burning circuit that the utility model embodiment provides, and for convenience of explanation, only shows the part relevant to the utility model, and details are as follows:
It is arranged at EEPROM online burning circuit 100 on PCB circuit board, and is connected with the eeprom chip 200 on this PCB circuit board.In the time that needs carry out burning operation to eeprom chip 200, EEPROM online burning circuit 100 also connects programmable device 300 by patchcord, programmable device 300 is also connected with host computer 400, user carries out corresponding parameter and selects operation on host computer 400, and controls programmable device 300 by host computer 400 and realize corresponding burning operation.
EEPROM online burning circuit 100 comprises burning interface 101, diode D1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5 and the 6th resistance R 6.
In the time that needs carry out burning operation to eeprom chip 200, burning interface 101 is connected with programmable device 300 by patchcord.
Power vd D1 on the anodic bonding PCB circuit board of diode D1, the power end VDD2 of the negative electrode of diode D1 and burning interface 101, the first end of the first resistance R 1, the first end of the first end of the second resistance R 2 and the 3rd resistance R 3 is connected to the supply pin of eeprom chip 200 altogether, the earth terminal GND ground connection of burning interface 101, the clock end SCL of burning interface 101, data terminal SDA and write-protect input end WP connect respectively the first end of the 4th resistance R 4, the first end of the first end of the 5th resistance R 5 and the 6th resistance R 6, the second end of the second end of the 4th resistance R 4 and the first resistance R 1 is connected to the clock input pin SCL of eeprom chip 200 altogether, the second end of the second end of the 5th resistance R 5 and the second resistance R 2 is connected to the data input pin SDA of eeprom chip 200 altogether, the second end of the second end of the 6th resistance R 6 and the 3rd resistance R 3 is connected to the write-protect input pin WP of eeprom chip 200 altogether, the first empty pin A0 of eeprom chip 200, the second empty pin A1, the 3rd empty pin A2 and grounding leg GND are connected to ground altogether.
Wherein, the first resistance R 1, the second resistance R 2 and the 3rd resistance R 3 are as pull-up resistor, and the 4th resistance R 4, the 5th resistance R 5 and the 6th resistance R 6 are current-limiting resistance.
Further, programmable device 300 is general EEPROM programmable devices, draws corresponding interface and be connected with the burning interface 101 of EEPROM online burning circuit 100 by above-mentioned patchcord on the programming seat of programmable device 300.
Further, eeprom chip 200 can be that model is the electrically-erasable ROM (read-only memory) of 24C08.
Below in conjunction with principle of work, above-mentioned EEPROM online burning circuit 100 is described further:
In the time that needs carry out burning operation to eeprom chip 200, by the power vd D1 power-off of PCB circuit board, and burning interface 101 is connected to programmable device 300 by patchcord, and programmable device 300 is connected with host computer 400, after host computer 400 select target parameters, control programmable device 300 and carry out burning operation.
In said process, diode D1 isolates the late-class circuit of the power vd D1 on the power end VDD2 of burning interface 101 and PCB circuit board, this late-class circuit can not drag down the voltage of the power end VDD2 of burning interface 101 under powering-off state, avoid burning operation exception, simultaneously, the voltage that can also prevent the power end VDD2 of burning interface 101 is supplied with other chips on PCB circuit board, other chips on PCB circuit board are not worked, thereby can not exert an influence to online burning operation, avoid the abnormal situation of burning to occur.
Based on the effect of above-mentioned EEPROM online burning circuit, the utility model embodiment also provides a kind of air conditioner, this air conditioner has a PCB circuit board, and eeprom chip is arranged on described PCB circuit board, and this air conditioner also comprises above-mentioned EEPROM online burning circuit 100.
The utility model embodiment comprises burning interface by employing, diode D1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the EEPROM online burning circuit 100 of the 5th resistance R 5 and the 6th resistance R 6, in the time that needs carry out burning operation to eeprom chip 200, burning interface 101 is connected to outside programmable device 300 by patchcord, can realize and the eeprom chip on PCB circuit board is carried out to online burning operate according to the control of host computer 400 by programmable device 300, do not need eeprom chip 200 to disassemble from PCB circuit board, and after completing, burning welds back PCB circuit board, thereby realize the operation of online burning fast, improve burning operating efficiency, be applicable to large batch of eeprom chip to carry out burning operation, and can not cause damage to the peripheral devices of eeprom chip and PCB circuit board.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. an EEPROM online burning circuit, it is arranged on PCB circuit board, and is connected with the eeprom chip on described PCB circuit board; In the time that needs carry out burning operation to described eeprom chip, described EEPROM online burning circuit also connects programmable device by patchcord, and described programmable device is also connected with host computer; It is characterized in that:
Described EEPROM online burning circuit comprises:
Burning interface, diode D1, the first resistance R 1, the second resistance R 2, the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5 and the 6th resistance R 6;
In the time that needs carry out burning operation to described eeprom chip, described burning interface is connected with described programmable device by patchcord;
Power supply described in the anodic bonding of described diode D1 on PCB circuit board, the power end of the negative electrode of described diode D1 and described burning interface, the first end of described the first resistance R 1, the first end of the first end of described the second resistance R 2 and described the 3rd resistance R 3 is connected to the supply pin of described eeprom chip altogether, the earth terminal ground connection of described burning interface, the clock end of described burning interface, data terminal and write-protect input end connect respectively the first end of described the 4th resistance R 4, the first end of the first end of described the 5th resistance R 5 and described the 6th resistance R 6, the second end of the second end of described the 4th resistance R 4 and described the first resistance R 1 is connected to the clock input pin of described eeprom chip altogether, the second end of the second end of described the 5th resistance R 5 and described the second resistance R 2 is connected to the data input pin of described eeprom chip altogether, the second end of the second end of described the 6th resistance R 6 and described the 3rd resistance R 3 is connected to the write-protect input pin of described eeprom chip altogether, the first empty pin of described eeprom chip, the second empty pin, the 3rd empty pin and grounding leg are connected to ground altogether.
2. EEPROM online burning circuit as claimed in claim 1, is characterized in that, described eeprom chip is that model is the electrically-erasable ROM (read-only memory) of 24C08.
3. an air conditioner, described air conditioner has a PCB circuit board, and eeprom chip is arranged on described PCB circuit board, it is characterized in that, and described air conditioner also comprises EEPROM online burning circuit as claimed in claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849474.4U CN203673831U (en) | 2013-12-20 | 2013-12-20 | EEPROM on-line burning circuit and conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320849474.4U CN203673831U (en) | 2013-12-20 | 2013-12-20 | EEPROM on-line burning circuit and conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203673831U true CN203673831U (en) | 2014-06-25 |
Family
ID=50970098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320849474.4U Expired - Fee Related CN203673831U (en) | 2013-12-20 | 2013-12-20 | EEPROM on-line burning circuit and conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203673831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145370A (en) * | 2017-05-02 | 2017-09-08 | 贵州航天电子科技有限公司 | A kind of FLASH memory online burning device |
-
2013
- 2013-12-20 CN CN201320849474.4U patent/CN203673831U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107145370A (en) * | 2017-05-02 | 2017-09-08 | 贵州航天电子科技有限公司 | A kind of FLASH memory online burning device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101651335A (en) | Electronic equipment protection device and electronic equipment | |
| CN103219042B (en) | Circuit and the memory circuitry of burning program is realized by USB interface | |
| CN102915209B (en) | Storage control chip, storage equipment and system data writing method | |
| CN102684143A (en) | Over-voltage or under-voltage protective module for DC power supply | |
| CN103298210B (en) | Overvoltage protection circuit and electronic device with same | |
| CN203673831U (en) | EEPROM on-line burning circuit and conditioner | |
| CN207516929U (en) | Switching on and shutting down control circuit and mobile terminal | |
| CN204496490U (en) | The address card that a kind of upper pull-up voltage is adjustable | |
| CN203909780U (en) | Vehicle remote upgrading device | |
| CN206610191U (en) | The control circuit and control device of a kind of voltage break-make | |
| CN103092300A (en) | Internal storage power supply control circuit | |
| CN104049717A (en) | Power saving control circuit and electronic equipment | |
| CN109192237A (en) | Memory write-protection circuit and display device | |
| CN204256730U (en) | There is the FPGA configuration circuit of power-down protection | |
| CN201041938Y (en) | A LCD-TV power under-voltage protection circuit | |
| CN204288205U (en) | Automobile instrument Special programming | |
| CN204964642U (en) | Automatic test platform's test system | |
| CN202748777U (en) | On-line singlechip debugging system | |
| CN104079020B (en) | Computer and charging circuit thereof | |
| CN102801410B (en) | Normally-opened type electronic microswitch | |
| CN104900264A (en) | System and method for preventing data damage during startup and shutdown of SPI FLASH | |
| CN203251499U (en) | Circuit board for household electrical appliance | |
| CN104578033A (en) | Overvoltage protection device and USB interface | |
| CN204131486U (en) | The anti-tampering touch circuit of washing machine touch key-press | |
| CN202929403U (en) | Micro computer industrial control system of quilter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20171220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |