CN112148201A - Data writing method, device and storage medium - Google Patents

Abstract

The present invention provides a data writing method, device and storage medium. The method includes: receiving a write command input by a user, where the write command is used to request to write data to be written into a memory, and the write command includes The write address of the data to be written; when the write address is located in the preset address segment, push warning information, and the warning information is used to indicate that the write address is wrong; wherein, the preset address A segment includes an address range in which a target sector of the memory stores at least one network device address. The data writing method, device and storage medium provided by the present invention can solve the problem in the prior art that when a user inputs a writing command about a FLASH chip to a computer under PMON, due to operational errors or ignorance of the writing operation characteristics of the FLASH chip , which leads to the problem that the MAC address of the network device stored in the fixed address segment in the FLASH chip is arbitrarily changed.

Description

Data writing method, device and storage medium

technical field

The present invention relates to computer technology, and in particular, to a data writing method, device and storage medium.

Background technique

At present, some computers use a dedicated bridge chip set (abbreviation: bridge chip) as a chip set of a computing system to provide a north-south bridge function for the processor. The bridge chip integrates two gigabyte media access control address (GMAC) controllers. The two GMAC controllers are connected to an external GMAC physical layer (Physical, PHY) chip through an interface, which can be used as a computer The two network devices (also known as network card devices) implement network communication. For the convenience of subsequent description, the two network devices are referred to as network device 1 and network device 2 respectively.

The above-mentioned bridge chip is connected with a FLASH chip, and the MAC addresses of the two network devices of the bridge chip are stored in the fixed address segment of the first sector (Sector) of the address space of the FLASH chip. The PMON of the computer integrates two write commands about the FLASH chip connected to the bridge chip, which are the byte write command and the file write command. Among them, the byte write command is used to write one byte of data in the address space of the FLASH chip. The file write command is used to write the data of a file in the address space of the FLASH chip. It should be understood that the write address of the byte write command and the file write command is specified by the user, that is, the user specifies which address in the address space of the FLASH chip needs to be written from.

In the prior art, when the user inputs a write command (such as a byte write command or a file write command) about the FLASH chip to the computer under PMON, due to operational errors or ignorance of the write operation characteristics of the FLASH chip, it is easy to Cause the MAC address of the network device stored in the fixed address segment in the FLASH chip to be changed at will (for example, the MAC address is erased, the MAC address is rewritten, the MAC address is rewritten, etc.), which in turn causes the computer to have no MAC address, or MAC address In the case of conflict with the MAC addresses of other network devices in the same local area network, the network communication of the computer fails.

SUMMARY OF THE INVENTION

The present invention provides a data writing method, a device and a storage medium, which are used to solve problems in the prior art when a user inputs a writing command about a FLASH chip to a computer under PMON, due to operational errors or the characteristics of the writing operation to the FLASH chip. Without understanding, the MAC address of the network device stored in the fixed address segment in the FLASH chip is arbitrarily changed.

A first aspect of the present invention provides a data writing method, the method comprising:

receiving a write command input by a user, the write command is used to request to write data to be written into the memory, and the write command includes a write address of the data to be written;

When the write address is within a preset address segment, push warning information, where the warning information is used to indicate that the write address is wrong; wherein the preset address segment includes the target sector of the memory storing at least An address range of network device addresses.

In a possible implementation, the method further includes:

When the write address is not located in the preset address segment, the to-be-written data is written into the memory according to the write address.

In a possible implementation manner, the write command is a byte write command, and before pushing the warning information, the method further includes:

Determine whether there is a byte with the same preset value in the at least one network device address, and the preset value is the value of the byte stored in the address space after the memory has been erased;

If a byte with the same preset value exists in the at least one network device address, obtain the preset address segment.

In a possible implementation manner, the write command is a byte write command, and the starting address of the preset address segment is the starting address of the target sector for storing the at least one network device, all The end address of the preset address segment is the end address where the target sector stores the at least one network device.

In a possible implementation manner, the write command is a file write command, and the preset address segment is an address segment of the target sector.

A second aspect of the present invention provides a data writing device, the device comprising:

a receiving module, configured to receive a write command input by a user, where the write command is used to request to write data to be written into the memory, and the write command includes a write address of the data to be written;

A push module, configured to push warning information when the write address is within a preset address segment, where the warning information is used to indicate that the write address is wrong; wherein the preset address segment includes the memory The target sector stores an address range of at least one network device address.

In a possible implementation, the device further includes:

The writing module is configured to write the data to be written into the memory according to the writing address when the writing address is not located in the preset address segment.

In a possible implementation manner, the write command is a byte write command, and the apparatus further includes:

The judgment module is used to judge whether there is a byte with the same preset value in the at least one network device address before the push module pushes the warning information, and the preset value is the value after the memory is erased. The value of the byte stored in the address space;

An obtaining module, configured to obtain the preset address segment when a byte with the same preset value exists in the at least one network device address.

In a possible implementation manner, the write command is a byte write command, and the starting address of the preset address segment is the starting address of the target sector for storing the at least one network device, all The end address of the preset address segment is the end address where the target sector stores the at least one network device.

In a possible implementation manner, the write command is a file write command, and the preset address segment is an address segment of the target sector.

A third aspect of the present invention provides a data writing device, comprising: at least one processor and a memory;

The memory stores computer-executable instructions; the at least one processor executes the computer-executable instructions stored in the memory to perform the method of any one of the first aspects.

A fourth aspect of the present invention provides a computer-readable storage medium, where program instructions are stored in the computer-readable storage medium, and when the program instructions are executed by a processor, any one of the methods described in the first aspect is implemented.

In the data writing method, device and storage medium provided by the present invention, the processor can judge whether the write address is located in the preset address segment storing the address of at least one network device according to the write address carried by the write command, If the write address is within the preset address segment, the write command is not executed, but a warning message indicating that the write address is wrong is pushed. In this way, the address of the network device stored in the memory can be protected from being arbitrarily changed, which can solve the problem that when the user inputs a write command about the FLASH chip to the computer under PMON, due to an operation error or a write operation to the FLASH chip The lack of understanding of the characteristics leads to the problem that the MAC address of the network device stored in the fixed address segment in the FLASH chip is arbitrarily changed.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

Fig. 1 is the structural representation of computer;

2 is a schematic flowchart of a data writing method provided by the present invention;

3 is a schematic structural diagram of a data writing device provided by the present invention;

FIG. 4 is a schematic structural diagram of another data writing device provided by the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

A chipset is a group of integrated circuit chips that work together to connect a computer's processor to the rest of the computer. In the computer world, the term chipset usually refers to the two main motherboard chips, the north bridge and the south bridge. FIG. 1 is a schematic diagram of the structure of a computer. As shown in FIG. 1 , at present, some computers use a dedicated bridge chip group (abbreviation: bridge chip) as a chip group of a computing system to provide a north-south bridge function for the processor.

A Media Access Control Address (MAC), also called a hardware address, is unique. Therefore, in the process of network communication, the MAC address is usually used to define the location of the network device. If the network device has no MAC address, or the MAC address of the network device conflicts with the MAC addresses of other network devices in the same local area network, network communication will fail.

The above-mentioned bridge chip integrates two GMAC controllers, and the two GMAC controllers are connected to an external GMAC physical layer (Physical, PHY) chip (not shown in Figure 1) through an interface, which can be used as two A network device (also known as a network card device) implements network communication of a computer. For the convenience of subsequent description, the two network devices are referred to as network device 1 and network device 2 respectively.

Referring to FIG. 1, the computer includes a processor, a bridge chip and a FLASH chip that are connected in sequence, wherein, compared with the prior art, the FLASH chip is an additional memory outside the bridge chip for storing the MAC address of the network device. and other information. Specifically, the above-mentioned bridge chip is externally connected with a FLASH chip, and the FLASH chip may also be called a flash memory, which is a memory that keeps storing data and information in a power-off state. The address space of the FLASH chip consists of multiple sectors (Sectors), the size of each sector is 4KB, and the storage address of each sector is from 0x0000 to 0x0fff. In the prior art, the MAC addresses of the two network devices of the bridge chip are stored in the fixed address segment of the first Sector0 in the address space of the FLASH chip. Specifically, the MAC address of the network device 1 is stored in the address segment from 0x0000 to 0x0005 of Sector0, occupying 6 bytes. The MAC address of network device 2 is stored in the address segment 0x0010 to 0x0015 of Sector0, which also occupies 6 bytes.

PMON is an open source software that has both basic input output system (Basic Input Output System, BIOS) and some functions of bootloader. PMON is the "firmware" of the computer, which can be regarded as a part of the hardware of the computer. Its function in the computer is to perform the most basic initialization of the hardware, and it is the interface between the hardware and the operating system kernel. The PMON integrates two write commands about the FLASH chip connected to the bridge chip, which are byte write commands and file write commands. Among them, the byte write command is used to write one byte of data in the address space of the FLASH chip. The file write command is used to write the data of a file in the address space of the FLASH chip. It should be understood that the write address of the byte write command and the file write command is specified by the user (that is, the user needs to specify which address in the address space of the FLASH chip to start writing from).

The FLASH chip supports erasing according to the size of the sector, that is, erasing at least 4KB of address space each time, and the value of the bytes stored in the erased address space is 0xff. The characteristic of the FLASH chip write operation is that it must be erased before new data can be written. That is, the address space where new data is written must be the address space that has been erased. In this application document, the concepts of address space and address are the same, and this embodiment does not distinguish them.

When the user inputs a byte write command to the computer under PMON, and specifies that the write address of the data to be written is between 0x0000 and 0x0005 or between 0x0010 and 0x0015 of Sector0, when the processor executes the byte write command , the erase operation will not be performed, but the write operation will be performed directly. At this time, if the value stored in the write address on the FLASH chip is 0xff, that is, the value stored in the address space indicated by the write address at the current moment is 0xff, the processor will mistake the write address as erasing data After the address, the processor will directly perform the above write operation, causing the address of the network device stored in the FLASH chip to be rewritten.

For example, assume that the MAC address of network device 1 at 0x0000-0x0005 of Sector0 is 00:11:22:AB:FF:66. That is, the MAC address of the network device 1 is stored in the sector Sector0 of the FLASH chip, occupying an address space of 6 bytes in the sector Sector0. In other words, the MAC address of the network device 1 can be regarded as 6 groups of data, and each group of data occupies an address space of one byte. That is, 00 occupies one byte of address space, 11 occupies one byte of address space, 22 occupies one byte of address space, AB occupies one byte of address space, FF occupies one byte of address space, and 66 occupies one byte of address space bytes of address space.

In this scenario, taking the user inputting a byte write command to the computer under PMON as an example, it is assumed that the data to be written indicated by the byte write command is AC, and the specified write address is 0x0004. In this example, since the value stored at 0x0004 is 0xff (that is, the value stored at the write address 0x0004 is 0xff), at this time, the processor will consider the write address 0x0004 to be the address after erasing the data, and then process The controller will perform the write operation, rewriting the value stored on 0x0004 to AC, resulting in the MAC address of network device 1 becoming 00:11:22:AB:AC:66. If the data to be written indicated by the byte write command is AC, the specified write address is 0x0005. In this example, because 0x0005 is stored as 0x66, not 0xff; at this time, the processor will consider the write address to be the address after erasing the data, and in this scenario, the processor will not execute the write operate. That is, writing fails.

That is to say, when the value stored in the address space corresponding to the write address specified by the byte write command is 0xff, the processor will execute the byte write command and use the The write byte replaces the value 0xff originally stored in the address space corresponding to the write address.

Correspondingly, when the user inputs a file write command to the computer under PMON, and specifies that the write address of the file to be written is located in the address segment from 0x0000 to 0x0FFF of Sector0, the processor will first perform the operation of erasing Sector0, resulting in the storage of The MAC address of network device 1 and the MAC address of network device 2 in the 0x0000 to 0x0015 address range in Sector0 will be erased to 0xff. After completing the operation of erasing Sector0, the processor starts from the write address specified by the file write command, and writes the data of the to-be-written file into Sector0. At this time, if the write address of the to-be-written file is between 0x0000 and 0x0015, the MAC address of the network device 1 and the MAC address of the network device 2 will be rewritten.

It should be understood that, when the above-mentioned processor performs the write operation to the FLASH chip, the write operation can be performed through the bridge chip. Generally speaking, the bridge chip performs the write operation to the FLASH chip through a serial peripheral interface (Serial Peripheral Interface, SPI) controller. Therefore, in some embodiments, the above byte write command may also be referred to as an SPI word Section write command, file write command can also be called SPI file write command, SPI byte write command and SPI file write command can be collectively called SPI write command.

It can be seen from the above description that due to the writing characteristics of the above-mentioned FLASH chip itself (that is, the address space in which new data is written must be the address space that has been erased, and the value stored in the erased address space is 0xFF, etc.), When the user inputs the write command about the FLASH chip to the computer, the MAC address of the network device stored in the fixed address segment in the FLASH chip is easily changed due to operational errors or ignorance of the write operation characteristics of the FLASH chip (MAC address). The address is erased, the MAC address is rewritten, the MAC address is rewritten, etc.), which in turn causes the computer to have no MAC address, or the MAC address conflicts with the MAC addresses of other network devices in the same local area network, resulting in the computer's network communication failure.

Considering the above-mentioned problems caused by the writing characteristics of the FLASH chip itself, the invention provides a data writing method, when the processor executes the writing command, it can judge the writing according to the writing address carried by the writing command. Whether the incoming address is located in the preset address segment where the address of at least one network device is stored, if the write address is located in the preset address segment, the write command is not executed, but is pushed to instruct the write Address error warning message. In this way, the address of the network device stored in the memory can be protected from being arbitrarily changed, which can solve the problem that when the user inputs a write command about the FLASH chip to the computer, due to operational errors or inconsistent write operation characteristics of the FLASH chip Understand the problem that the MAC address of the network device stored in the fixed address segment in the FLASH chip is arbitrarily changed. The address of the above network device is the MAC address of the network device.

The method provided by the present invention can be applied to an electronic device including a memory, which is used to store the MAC address of the network device and has the following writing characteristics: the address space in which new data is written must be the address space that has been erased, and , the value stored in the erased address space is a preset value, and the preset value may be, for example, 0xFF. For example, the memory can be the aforementioned FLASH chip.

Taking the FLASH chip as an example, the electronic equipment to which the method provided by the present invention is applicable can be the electronic device that provides the north-south bridge function for the processor through the bridge chip, and the MAC address of the network device of the bridge chip is stored in the electronic device of the FLASH chip external to the bridge chip. equipment (such as the computer shown in Figure 1). The electronic device can use PMON as "firmware" to initialize the hardware of the electronic device, or use UEFI to initialize the hardware of the electronic device, or use other firmware to initialize the hardware of the electronic device. . That is, the embodiment of the present invention does not limit the firmware used by the electronic device. That is to say, the methods provided by the embodiments of the present invention are applicable to any electronic device using the FLASH chip, and are not listed one by one here.

The execution body of the data writing method provided by the present invention may be a data writing device, and the data writing device may be a driver program, program code software, or a medium storing relevant execution codes, such as a U disk, etc.; Alternatively, the data writing device may also be a physical device integrated or installed with relevant execution codes, such as a chip, a Microcontroller Unit (MCU for short), a computer, a computer and other electronic equipment.

For example, the solution can be applied to a computer, the processor of which has the characteristics of high performance and low power consumption, and can be applied to servers, high performance computers, low energy consumption data centers, personal high performance computers, high-end desktop applications, high Throughput computing applications, industrial control, digital signal processing, high-end embedded applications, etc.

The technical solution of the present invention will be described in detail with specific embodiments in conjunction with the computer structure shown in FIG. 1 , taking a processor integrated or installed with relevant execution codes as an example. The following specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

FIG. 2 is a schematic flowchart of a data writing method provided by the present invention. As shown in Figure 2, the method includes:

S101. Receive a write command input by a user, where the write command is used to request to write data to be written into a memory, and the write command includes a write address of the data to be written.

The above-mentioned write command can be, for example, the above-mentioned byte write command or file write command. Of course, the above write command may also be other types of write commands in the prior art, which will not be repeated here.

When the above write command is a byte write command, the data to be written may be data of a size of one byte. When the above write command is a file write command, the data to be written may be data of a file. In this scenario, the write command may further include the path where the file to be written is currently located.

The above-mentioned memory may be any memory that has the write characteristic of writing new data after erasing, such as the above-mentioned FLASH chip.

S102. Determine whether the write address is located in a preset address segment in which the address of at least one network device is stored. If yes, go to step S103, if not, go to step S104.

The preset address segment includes an address range in which the target sector of the memory stores at least one network device address, that is, the target sector is a sector in the FLASH chip that stores the network device address. Specifically, the preset address segment may be determined according to the address of the address of at least one network device in the computer in the target sector, and the write characteristics of the memory.

Taking the memory as a FLASH chip as an example, if the write command is a byte write command, then the start address of the preset address segment can be the target sector to store the start address of the at least one network device, all The end address of the preset address segment is the end address where the target sector stores the at least one network device. Alternatively, the starting address of the preset address segment may be smaller than the starting address of the target sector for storing the at least one network device, and the ending address of the preset address segment may be greater than the target sector storing the at least one network device. end address of .

If the write command is a file write command and the FLASH chip is erased according to the sector size, the preset address segment is the address segment of the target sector. Alternatively, the preset address segment includes the address segment of the target sector. It should be understood that if the FLASH chip is erased according to the block size, when the write command is a file write command, the preset address segment is the address segment of the block where the target sector is located, or the preset address segment is. It is assumed that the address segment includes the address segment of the block where the target sector is located. If the FLASH chip is erased according to the size of the entire chip, when the write command is a file write command, the preset address segment is the address segment of the slice where the target sector is located, or the preset address The segment includes the address segment of the slice where the target sector is located.

It is assumed that the MAC address of the network device 1 is stored in the address segment from 0x0000 to 0x0005 of Sector0 of the memory, occupying 6 bytes. The MAC address of the network device 2 is stored in the address segment 0x0010 to 0x0015 of Sector0 of the memory, which also occupies 6 bytes. Taking the memory as a FLASH chip as an example, if the above write command is a byte write command, the above preset address segment may be 0x0000 to 0x0015 of Sector0. If the above write command is a file write command and the FLASH chip is erased according to the sector size, the above preset address segment may be, for example, 0x0000 to 0x0fff of Sector0.

Optionally, in some embodiments, when the write command is a byte write command, the processor may first determine whether there is a byte with the same preset value in the at least one network device address, The preset value is the value of the byte stored in the address space after the memory has been erased. If there is a byte with the same preset value in the at least one network device address, the processor then obtains the preset address segment, and executes the judgment of step S102 to determine whether the write address is located in the In a preset address segment where the address of at least one network device is stored.

If a byte with the same preset value does not exist in the at least one network device address, the processor may process the write command according to the existing processing mode of the byte write command. That is, it is first judged whether the write address specified by the write command is the address after erasing the data, if so, execute the write command, and if not, do not execute the write command. At this time, since there is no byte with the same preset value in the at least one network device address, even if the write address specified by the write command falls within the address range of the address of the storage network device, no network When the address of the device is overwritten.

S103. Push warning information, where the warning information is used to indicate that the write address is incorrect.

When the write address specified by the write command input by the user is located in the preset address segment storing the address of at least one network device, the processor no longer executes the write command, but pushes a warning message to inform the user to write Incorrect address. In this way, the problem that the address of the network device stored in the memory is arbitrarily changed can be avoided, and the problem of network communication failure of the computer caused by the change of the MAC address of the network device can be avoided.

Optionally, in some embodiments, the warning information may also be used to instruct the user to rewrite the write address of the data to be written. That is, the warning information may further include a command line that enables the user to re-input the write address of the data to be written.

S104. Write the data to be written into the memory according to the write address.

Taking the memory as a FLASH chip as an example, then when the specified write address of the write command input by the user is not located in the preset address segment where the address of at least one network device is stored, it can be referred to the foregoing about how according to the prior art. The write command (byte write command or file write command) is the process of writing the data to be written.

The data writing method provided by the present invention is described below through a specific example:

Taking the memory as a FLASH chip as an example, it is assumed that the MAC address of the network device 1 is stored in the address segment from 0x0000 to 0x0005 of Sector0 of the FLASH chip, occupying 6 bytes. The MAC address of the network device 2 is stored in the 0x0010 to 0x0015 address segment of Sector0 of the FLASH chip, which also occupies 6 bytes.

If the write command is a byte write command and the preset address segment is 0x0000 to 0x0015 of Sector0, in this scenario, when the processor receives a byte write command input by the user under PMON, if the byte If the write address specified by the write command is between 0x0000 and 0x0015 of Sector0, for example, 0x0001 of Sector0, the processor will refuse to execute the write command, and prompt the user that the write address is wrong with a warning message, and prompt the user to rewrite write address. If the write address specified by the byte write command is not located at 0x0000 to 0x0015 of Sector0, such as 0x0016 of Sector0, the processor will perform the write operation according to the existing write process. For example, the processor will first determine whether the value stored in the write address is 0xff, if so, perform the write operation, and if not, refuse to execute the write command.

If the write command is a file write command, the preset address segment is 0x0000 to 0x0fff of Sector0, and the FLASH chip is erased according to the sector size, in this scenario, when the processor receives the file write input from the user under PMON When entering the command, if the write address specified by the file write command is between 0x0000 and 0x0FFF of Sector0, such as 0x0001 of Sector0, the processor will refuse to execute the write command and prompt the user to write through a warning message. The address is wrong and the user is prompted to rewrite the write address. If the write address specified by the file write command is not located in 0x0000 to 0x0fff of Sector0, for example, in another Sector, the processor will perform the write operation according to the existing write process. For example, the processor first performs the erase operation of the sector, and then performs the write operation according to the write address.

Through the above method, the address of the network device stored in Sector0 of the FLASH chip can be protected from being arbitrarily changed, and the problem of the address of the network device stored in the FLASH chip being arbitrarily changed can be avoided, thereby avoiding the MAC address of the network device. The problem is that the computer's network communication fails due to changes.

In the data writing method provided by the present invention, the processor can judge whether the writing address is located in the preset address segment storing the address of at least one network device according to the writing address carried by the writing command, and if the writing address is If it is located in the preset address segment, the write command is not executed, but a warning message indicating that the write address is wrong is pushed. In this way, the address of the network device stored in the memory can be protected from being arbitrarily changed, which can solve the problem that when the user inputs a write command about the FLASH chip to the computer under PMON, due to an operation error or a write operation to the FLASH chip The lack of understanding of the characteristics leads to the problem that the MAC address of the network device stored in the fixed address segment in the FLASH chip is arbitrarily changed.

It should be understood that although the above embodiments all describe and introduce the method provided by the embodiment of the present invention in terms of how to protect the address of the network device stored in the memory from being arbitrarily changed. However, those skilled in the art can understand that the above embodiments can also be applied to protect any data stored in the memory, so as to prevent the data from being arbitrarily changed. In this scenario, the above-mentioned preset address segment may be determined according to the address space in which the data to be protected is located, and the implementation manner is similar, which will not be repeated here.

Those of ordinary skill in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by program instructions related to hardware, the aforementioned program may be stored in a computer-readable storage medium, and when the program is executed, execute It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

FIG. 3 is a schematic structural diagram of a data writing device provided by the present invention. The data writing device may implement part or all of the above-mentioned processor through a combination of software and/or hardware, for example, the data writing device may be a chip on the processor, or the data writing device may be the processor device, etc.

As shown in FIG. 3 , the data writing apparatus may include: a receiving module 11 and a pushing module 12 . in,

a receiving module 11, configured to receive a write command input by a user, the write command is used to request to write the data to be written into the memory, and the write command includes the write address of the data to be written;

The push module 12 is configured to push warning information when the write address is within a preset address segment, where the warning information is used to indicate that the write address is wrong; wherein the preset address segment includes the memory The target sector stores at least one address range of network device addresses.

Exemplarily, when the write command is a byte write command, the starting address of the preset address segment is the starting address of the target sector storing the at least one network device, the preset address The end address of the address segment stores the end address of the at least one network device for the target sector. When the write command is a file write command, the preset address segment is the address segment of the target sector.

Continuing to refer to FIG. 3 , optionally, in some embodiments, the foregoing apparatus may further include:

The writing module 13 is configured to write the data to be written into the memory according to the writing address when the writing address is not within the preset address segment.

Continuing to refer to FIG. 3 , optionally, in some embodiments, when the write command is a byte write command, the above apparatus may further include:

The judgment module 14 is used to judge whether there is a byte with the same preset value in the at least one network device address before the push module 12 pushes the warning information, and the preset value is the memory erase The value of the byte stored in the address space after;

The obtaining module 15 is configured to obtain the preset address segment when a byte with the same preset value exists in the at least one network device address.

The data writing device provided by the present invention can execute the above method embodiments, and the implementation principles and technical effects thereof are similar, and are not repeated here.

FIG. 4 is a schematic structural diagram of another data writing device provided by the present invention. As shown in FIG. 4 , the data writing apparatus may include: at least one processor 21 and a memory 22 . Fig. 4 shows a data writing device taking a processor as an example, wherein,

The memory 22 is used to store programs. Specifically, the program may include program code, and the program code includes computer operation instructions. The memory 22 may include high-speed RAM memory, and may also include non-volatile memory, such as at least one disk memory.

The processor 21 is configured to execute the computer-executed instructions stored in the memory 22 to implement the data writing method in the above-mentioned embodiment. The implementation principle and technical effect thereof are similar, and are not repeated here.

The processor 21 may be a central processing unit (Central Processing Unit, referred to as CPU), or a specific integrated circuit (Application Specific Integrated Circuit, referred to as ASIC), or is configured to implement one or more embodiments of the present invention. multiple integrated circuits.

Optionally, in terms of specific implementation, if the communication interface, the memory 22 and the processor 21 are implemented independently, the communication interface, the memory 22 and the processor 21 can be connected to each other through a bus and complete mutual communication. The bus may be an Industry Standard Architecture (referred to as ISA) bus, a Peripheral Component (referred to as PCI) bus, or an Extended Industry Standard Architecture (referred to as EISA) bus, etc. . The bus can be divided into an address bus, a data bus, a control bus, etc., but it does not mean that there is only one bus or one type of bus.

Optionally, in terms of specific implementation, if the communication interface, the memory 22 and the processor 21 are integrated on one chip, the communication interface, the memory 22 and the processor 21 can complete the same communication through the internal interface.

The present invention also provides a computer-readable storage medium, the computer-readable storage medium may include: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory) Various media that can store program codes, such as , magnetic disk or optical disk. Specifically, program instructions are stored in the computer-readable storage medium, and the program instructions are used for the methods in the foregoing embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. scope.

Claims (10)

1. A method of writing data, the method comprising:

receiving a write command input by a user, wherein the write command is used for requesting to write data to be written into a memory, and the write command comprises a write address of the data to be written;

when the write address is located in a preset address field, pushing warning information, wherein the warning information is used for indicating that the write address is wrong; wherein the preset address field comprises an address range in which a target sector of the memory stores at least one network device address.

2. The method of claim 1, further comprising:

and when the write address is not located in the preset address segment, writing the data to be written into the memory according to the write address.

3. The method of claim 1 or 2, wherein the write command is a byte write command, and wherein before the pushing the warning information, the method further comprises:

judging whether bytes identical to a preset value exist in the at least one network equipment address, wherein the preset value is the value of the bytes stored in the address space after the memory is erased;

and if the at least one network equipment address has bytes which are the same as the preset value, acquiring the preset address segment.

4. The method according to claim 1 or 2, wherein the write command is a byte write command, the start address of the preset address segment stores the start address of the at least one network device for the target sector, and the end address of the preset address segment stores the end address of the at least one network device for the target sector.

5. The method according to claim 1 or 2, wherein the write command is a file write command, and the predetermined address field is an address field of the target sector.

6. A data writing apparatus, characterized in that the apparatus comprises:

the device comprises a receiving module, a writing module and a processing module, wherein the receiving module is used for receiving a writing command input by a user, the writing command is used for requesting to write data to be written into a memory, and the writing command comprises a writing address of the data to be written;

the pushing module is used for pushing warning information when the write address is located in a preset address field, and the warning information is used for indicating that the write address is wrong; wherein the preset address field comprises an address range in which a target sector of the memory stores at least one network device address.

7. The apparatus of claim 6, further comprising:

and the writing module is used for writing the data to be written into the memory according to the writing address when the writing address is not positioned in the preset address segment.

8. The apparatus of claim 6 or 7, wherein the write command is a byte write command, the apparatus further comprising:

a judging module, configured to judge whether a byte that is the same as a preset value exists in the at least one network device address before the pushing module pushes the warning information, where the preset value is a value of a byte stored in an address space after the memory is erased;

an obtaining module, configured to obtain the preset address segment when a byte that is the same as the preset value exists in the at least one network device address.

9. A data writing apparatus, comprising: at least one processor and memory;

the memory stores computer-executable instructions; the at least one processor executes computer-executable instructions stored by the memory to perform the method of any of claims 1-5.

10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored therein program instructions, which when executed by a processor, implement the method of any one of claims 1-5.

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