CN217606559U - Serial Flash chip read-write device - Google Patents
Serial Flash chip read-write device Download PDFInfo
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- CN217606559U CN217606559U CN202221682774.3U CN202221682774U CN217606559U CN 217606559 U CN217606559 U CN 217606559U CN 202221682774 U CN202221682774 U CN 202221682774U CN 217606559 U CN217606559 U CN 217606559U
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Abstract
The utility model relates to a serial Flash chip read-write device, accessible PC communication module and Flash communication interface realize core controller and PC end write the software driver's of Flash chip read, write and check-up data intercommunication, through reading the Flash data of normal integrated circuit board, and then realize writing in to the data of blank Flash chip, duplicate out with the Flash chip of normal integrated circuit board for replace the Flash chip that the same model circuit board damaged; the replaceable Flash base is in data communication with the core control panel aiming at different types of Flash chips. Aiming at the faults of the printed circuit board caused by Flash failure, the specific data of the Flash chip on the customized board card is effectively recovered, and the function of repairing the circuit board card is achieved.
Description
Technical Field
The utility model relates to a Flash chip read-write data technical field, concretely relates to serial Flash chip readwrite device.
Background
For the rail transit industry, the design and production of equipment are highly customized, any equipment fails, if new equipment is replaced, the cost is high, the production period is long, the economic benefit is not high, and most owners prefer to select a method for repairing a failed part to prolong the life cycle of the equipment. Flash is one type of memory chip, can save data under the condition of power failure, is widely used in the rail transit industry, and is commonly used for storing programs, parameters, data and the like. According to different functions, the printed circuit board can use various Flash chips which are respectively used for recording programs, parameters and data, and the failure or the error of any Flash can cause the failure of the whole circuit board. For the maintenance of the printed circuit board, many faults are caused by Flash failure, and under the condition that the faults of the printed circuit board are caused by Flash failure, the faults can be repaired only by replacing Flash of other circuit boards with the same type, so that the maintenance hope of another fault board card is sacrificed, and the board card maintenance success rate is greatly reduced.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a serial Flash chip readwrite device can realize reading, writing and the check-up of serial Flash chip commonly used, solves the Flash damage back of circuit board, because of there being no removable unable prosthetic pain point of trouble that leads to of Flash.
In order to realize the purpose, the following technical scheme is adopted: the serial Flash chip read-write device is used for reading Flash chip data of a normal printed circuit board and writing blank Flash chip recovery data so as to repair the functions of the printed circuit board, and comprises a core control board and a Flash base, wherein the core control board is integrated with a core controller, a PC communication module, a Flash communication interface and a USB interface; the Flash base is used for data communication of the Flash chip and connecting the pin of the Flash chip to the core control board;
the core controller is used for processing data of a software driver program of an external PC (personal computer) end writing Flash chip, comprises a PC communication interface and a common serial Flash standard interface, performs data communication with a PC communication module through the PC communication interface, performs data communication with the Flash communication interface through the serial Flash standard interface, and realizes read-write driving of different Flash chips through the software driver program of the Flash chip written by the PC end;
the PC communication module is externally connected with a virtual com port of a PC end through a USB interface and is used for data uploading, downloading and instruction interaction, so that data transmission between the core controller and the externally connected PC end is realized;
one end of the Flash base is connected with the Flash communication interface through a connector, and the other end of the Flash base realizes pressure contact connection of the Flash chip packaging seat and is used for connecting pins of the Flash chip to the core control panel.
Furthermore, the Flash base is a replaceable Flash base selected according to different types of Flash chips.
Furthermore, the common serial Flash standard interface also comprises an spi interface and an iic interface.
Further, the USB interface is also used for supplying power to the core control board through the PC communication module.
Furthermore, the external PC side writes a software driver of the Flash chip and comprises data instructions for space reading, resetting and checking of the Flash chip.
Furthermore, the read-write device can also be used for updating the Flash chip with limited read-write times of the printed circuit board.
The utility model discloses beneficial effect: the device can realize the data intercommunication of reading, writing and checking of a software driver for writing a Flash chip by a core controller and a PC end through a PC communication module and a Flash communication interface, and further realize the data writing of the blank Flash chip by reading the Flash data of a normal board card, and copy the Flash chip of the normal board card to replace the damaged Flash chip of the board card of the same type of circuit board; the replaceable Flash base is in data communication with the core control panel aiming at different types of Flash chips. Aiming at the faults of the printed circuit board caused by Flash failure, the specific data of the Flash chip on the customized board card is effectively recovered, and the function of repairing the circuit board card is achieved. Meanwhile, the Flash chips are limited by the read-write times, and the device replaces the Flash chips for the printed circuit board aiming at the Flash chips which need to be read and written frequently in the actual use environment, so that the purposes of preventing and maintaining are achieved, the service life of the equipment is prolonged, and the economic value of the equipment is increased.
Drawings
FIG. 1 is a block diagram of the present invention;
fig. 2 is a schematic diagram of the present invention.
As shown in the figure: 1. a core control board; 2. a Flash communication interface; 3. a core controller; 4. a PC communication module; 5. a USB interface; 6. a Flash base; 7. a PC terminal; 31. a PC communication interface; 32. and a serial Flash standard interface.
Detailed Description
Examples
For further explanation below with reference to the accompanying drawings, fig. 1-2 are schematic diagrams of this embodiment, and the serial Flash chip read-write apparatus shown in the figure includes a core control board 1 and a Flash base 6. The core control panel 1 is a circuit board, the core control panel 1 is integrated with a core controller 3, a PC communication module 4, a Flash communication interface 2 and a USB interface 5, the core controller 3 comprises a PC communication interface 31 and a common serial Flash standard interface 32, and the serial Flash standard interface 32 further comprises a spi interface and an ic interface. The Flash base 6 is a replaceable Flash base selected according to different types of Flash chips and used for data communication of the Flash chips of different types, one end of the Flash base 6 is connected with the Flash communication interface 2 through a connector, the other end of the Flash base realizes pressure contact connection of a Flash chip packaging seat, and pins of the Flash chip are connected to the core control board 1.
The core controller 3 processes data of a software driver of the Flash chip written by the external PC terminal 7, wherein the driver comprises data instructions for space reading, resetting and checking of the Flash chip. The core controller 3 is in data communication with the PC communication module 4 through the PC communication interface 31, is in data communication with the Flash communication interface 2 through the serial Flash standard interface 32, and realizes read-write drive of different Flash chips through writing a software driver of the Flash chips by the PC terminal 7.
The PC communication module 4 performs data uploading, downloading and instruction interaction at a virtual com port of an external PC end 7 through the USB interface 5, so as to realize data transmission between the core controller 3 and the external PC end 7, and the USB interface 5 also supplies power to the core control panel 1 through the PC communication module 4.
In the embodiment, the data of the Flash chip of the normal printed circuit board is read, and the blank Flash chip is written to restore the data, so that the function of the printed circuit board is repaired. The specific operation steps are as follows:
1. determining the type of a Flash chip with a fault on the faulty printed circuit board through testing, marking the Flash chip with the type of the Flash chip with the fault as a Flash chip a, taking down the faulty Flash chip, marking the welding position of a blank Flash chip to which data is to be rewritten on the faulty printed circuit board, and marking the blank Flash chip to which the data is rewritten as a Flash chip c;
2. selecting a printed circuit board which has the same model as a fault printed circuit board and has normal Flash chip functions, identifying all serial Flash chips, identifying a Flash chip which has the same model as the Flash chip a, marking the Flash chip as a Flash chip b, and selecting a Flash base according to the model of the Flash chip;
3. downloading the operation manual of the Flash chip corresponding to the operation manual of the Flash chip by the official of the Flash chip manufacturer at the PC terminal and writing the software driving program of the Flash chip of the manufacturer;
4. taking the Flash chip b out of the printed circuit board, inserting the Flash chip b into the Flash base, connecting a core control board of the Flash chip b, and connecting pins of the Flash chip b to the core control board;
5. connecting the USB interface to the USB interface of the PC end;
6. running a software driver of a Flash chip at a PC (personal computer) end, and selecting the types of the Flash chip, namely the types of a Flash chip a, a Flash chip b and a Flash chip c;
7. reading the data of the selected Flash chip b, renaming and storing;
8. disconnecting the USB interface from the USB interface of the PC end;
9. inserting the Flash chip c into the Flash base, and connecting the USB interface to the USB interface of the PC end again;
10. repeating the step 6, selecting the data file of the Flash chip b stored in the step 7, and writing the stored data file of the Flash chip b into the Flash chip c through the core control board;
11. taking the Flash chip c out of the Flash base and welding the Flash chip c to the mark position of the fault printed circuit board;
12. and verifying whether all functions of the fault circuit board are recovered to be normal.
The present invention is not limited to the embodiment, and any equivalent concept or change within the technical scope of the present invention is all listed as the protection scope of the present invention.
Claims (6)
1. The serial Flash chip read-write device is characterized in that blank Flash chips are written in to restore data by reading Flash chip data of a normal printed circuit board so as to restore the functions of the printed circuit board, and comprises a core control board (1) and a Flash base (6), wherein the core control board (1) is integrated with a core controller (3), a PC communication module (4), a Flash communication interface (2) and a USB interface (5); the Flash base (6) is used for data communication of a Flash chip and connecting a pin of the Flash chip to the core control board (1);
the core controller (3) is used for processing data of a software driver program of a Flash chip written by an external PC end, comprises a PC communication interface (31) and a common serial Flash standard interface (32), is in data communication with the PC communication module (4) through the PC communication interface (31), and is in data communication with the Flash communication interface (2) through the serial Flash standard interface (32);
the PC communication module (4) is externally connected with a PC end virtual com port through a USB interface (5) and is used for data communication;
one end of the Flash base (6) is connected with the Flash communication interface (2) through a connector, and the other end of the Flash base realizes the pressure contact connection of the Flash chip packaging base.
2. A serial Flash chip read-write apparatus according to claim 1, characterized in that the Flash base (6) is a Flash base that is replaceable according to different types of Flash chips.
3. The serial Flash chip read-write device according to claim 1, wherein the common serial Flash standard interface further comprises a spi interface and an ic interface.
4. The serial Flash chip reader/writer according to claim 1, characterized in that the USB interface (5) is used to supply power to the core control board (1) through the PC communication module (4).
5. The serial Flash chip read-write device according to claim 1, wherein the external PC side writes a software driver of the Flash chip including data instructions for Flash chip space reading, resetting, and checking.
6. The serial Flash chip read-write device according to claim 1,
and the method can also be used for updating the Flash chip with limited reading and writing times of the printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221682774.3U CN217606559U (en) | 2022-06-30 | 2022-06-30 | Serial Flash chip read-write device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221682774.3U CN217606559U (en) | 2022-06-30 | 2022-06-30 | Serial Flash chip read-write device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217606559U true CN217606559U (en) | 2022-10-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221682774.3U Active CN217606559U (en) | 2022-06-30 | 2022-06-30 | Serial Flash chip read-write device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217606559U (en) |
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2022
- 2022-06-30 CN CN202221682774.3U patent/CN217606559U/en active Active
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