CN102543193B - A kind of flash recordable method, recording device and programming system - Google Patents

Abstract

The invention discloses a flash memory programming method, comprising synthesizing a downloaded information file and at least one data file into a programming file including an information area and a data area, the data area includes valid data in the data file, and the information area includes The description information corresponding to the valid data in the information file; read the information area of the burning file to get the description information of each valid data; according to the description information of each valid data, read each valid data in turn; when each valid data is read , then burn the valid data into the flash memory according to the description information of the valid data, so as to avoid the problem that the description information file does not match the valid data file due to misoperation, and the burning file does not include filling data, thus burning The filling data is skipped during recording, which is more convenient and safe during burning; and it only needs to download the burning file once, so as to burn according to the burning file, which improves the efficiency. The invention also provides a burning device and a burning system.

Description

A flash memory burning method, burning equipment and burning system

technical field

The invention relates to a flash memory, in particular to a flash memory programming method, a programming device and a programming system.

Background technique

At present, there are two methods of burning flash memory: one is the master copy method, that is, the content on the user’s original flash is copied to the onboard flash, and then the corresponding content on the onboard flash is written into the empty flash; the other is the file The method is to put the specified file on the mobile hard disk or the built-in hard disk of the programmer, and then read the content of the file and write it into the flash according to the specified method.

When burning in the file mode, two files are required: the actual data file to be burned, see Figure 1, which is the format of the data file; the description information file describing the position of the data in the flash, see Figure 2, which is the description information file Format. When burning in the file mode, you need to download the description information file and the data file separately, but if the data file and the description information file do not match due to an operation error, the content burned to the flash will be wrong; and when burning, it is Read the content of the data file sequentially. When the data is not continuous in the flash, there will be filled data, resulting in a huge data file.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a flash memory programming method, a programming device and a programming system, which can avoid the matching problem between information files and data files, and the programming is convenient and safe.

In order to solve the above technical problems, an embodiment of the present invention provides a flash memory programming method, including:

The downloaded information file and at least one data file, the information file and the data file are synthesized into a burning file including a data area and an information area, the data area includes valid data in each of the data files, and the The information area includes descriptive information corresponding to the valid data in the information file;

Read the information area of the burning file to obtain the descriptive information of each valid data; the descriptive information includes the starting address and size of the valid data in the flash memory;

According to the description information of each valid data, sequentially read each valid data in the data area;

When each valid data is read, the read valid data is burned into the flash memory according to the description information of the valid data.

Wherein, before the step of reading the information area of the burning file and obtaining the description information of each valid data, it also includes:

Detecting the flash memory to obtain characteristic information of the flash memory;

Erase the entire flash memory according to the characteristic information.

Wherein, the step of sequentially reading each valid data in the data area according to the description information of each valid data specifically includes:

Before each valid data is read, according to the description information of the valid data, the area corresponding to the valid data in the flash memory is erased;

According to the description information of the valid data, the valid data in the data area is read.

Wherein, when each valid data is read, the step of burning the read valid data into the flash memory according to the description information of the read valid data specifically includes:

Whenever a valid data is read, check whether the current block to which the valid data is to be written is a bad block, if not, write the valid data into the current block; if the current block is a bad block, skip The current block writes the read valid data into a subsequent block that is not a bad block.

Wherein, the size of the information area is predefined, or the information area includes an information area end identifier.

A burning device, comprising:

The description information reading module is used to read the information area that synthesizes the information file and at least one data file into a burning file including the information area and the data area, and obtains the description information of valid data in each data file; the data area Including valid data in each data file, the information area includes description information corresponding to the valid data in the information file, and the description information includes the size of the valid data and its starting address in the flash memory ;

a valid data reading module, configured to sequentially read each valid data in the data area according to the description information of each valid data;

The burning module is configured to burn the read valid data into the flash memory according to the description information of the valid data each time a valid data is read.

Wherein, the burning device also includes:

A feature information acquisition module, configured to detect the flash memory and obtain feature information of the flash memory;

The flash memory erasing module is used for erasing the entire flash memory according to the characteristic information.

Wherein, the burning device also includes;

The area erasing module is used to erase the area corresponding to the valid data in the flash memory according to the description information of the valid data before each valid data read by the valid data reading module;

The burning module is used to write the read valid data into the area corresponding to the valid data erased by the area erasing module according to the description information of the valid data each time a valid data is read. in the area.

Wherein, the burning device also includes:

The detection module is used to detect whether the current block to be written with the valid data in the flash memory is a bad block when each valid data is read;

The burning module is used to write the read valid data into the current block when each valid data is read and it is detected that the current block to which the valid data will be written is not a bad block; or

Every time a valid data is read, and when it is detected that the current block to be written into the valid data is a bad block, the current block is skipped, and the valid data read is written into the subsequent non-bad block block.

A burning system, comprising:

A synthesis module, used for synthesizing the downloaded information file and at least one data file into a burning file including a data area and an information area; and the above-mentioned burning device.

Implementing the embodiment of the present invention has the following beneficial effects:

In the flash memory programming method of the embodiment of the present invention, by synthesizing information files and data files into

The burning files of the data area and the information area, in which the data area includes multiple valid data, and the information area includes the description information of each valid data, that is, the data file and the information file are synthesized to include both valid data and valid data. The burning file of the description information avoids the problem that the description information file does not match the effective data file due to misoperation when the valid data and the description information of the valid data are placed in two files respectively. The file does not include filling data, and the burning file is small, so the filling data is skipped during burning, which is more convenient and safe during burning; and even if there are bad blocks in the flash memory, the burning file only needs to be downloaded once, so that Burning is performed according to the burning file, which improves efficiency and is less prone to errors.

In the flash memory programming method of the embodiment of the present invention, since the information area of a predetermined size is defined in the programming file, when reading data, the data can be read directly at a fixed position of the programming file, thereby making the method simpler.

The flash memory programming method of the embodiment of the present invention reads data by identifying the start position of the data area according to the end mark set in the information area. Since the size of the information area is variable, it has strong flexibility.

In the flash memory programming method of the embodiment of the present invention, by downloading a programming file that includes not only valid data but also description information of valid data, when programming valid data, even if a bad block is encountered, it can be directly downloaded from the downloaded file. The effective data and the description information of the effective data are read in the burning file to avoid the need to write each effective data separately, that is, to cut the data file including multiple effective data into multiple copies and put them into multiple files, which will cause burning When recording data, it needs to be downloaded, erased, and written multiple times, so as to improve the recording efficiency and make it less prone to errors.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the 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. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of the format of an existing data file;

FIG. 2 is a schematic diagram of the format of an existing description information file;

Fig. 3 is a flowchart of an embodiment of the flash memory programming method of the present invention;

Fig. 4 is a schematic format diagram of the burning file in an embodiment of the flash memory burning method of the present invention;

Fig. 5 is the flow chart of another embodiment of the flash memory programming method of the present invention;

Fig. 6 is the flow chart of another embodiment of the flash memory programming method of the present invention;

Fig. 7 is a functional block diagram of an embodiment of the burning device of the present invention;

Fig. 8 is a functional block diagram of another embodiment of the burning device of the present invention;

FIG. 9 is a functional block diagram of an embodiment of the programming system of the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

In the embodiment of the present invention, the information file and the data file are synthesized into a burning file including the information area and the data area, and the effective data in the data area is read according to the description information of the effective data in the information area, and the read The valid data is burned into the flash memory, because the burning file includes both the valid data and the description information of the valid data, avoiding the problem of mismatch between the data file and the description file, and because the burning file does not contain Including filling data, the burning file is small, so the filling data is skipped during burning, which is more convenient and safe during burning, and the burning efficiency is improved.

Referring to FIG. 3 , it is a flow chart of an embodiment of a flash memory programming method according to an embodiment of the present invention. The flash memory programming method of the present embodiment, specific implementation process is as follows:

S11, the downloaded information file and at least one data file are synthesized into a burning file including an information area and a data area, the data area includes valid data in each data file, and the information area includes information corresponding to the valid data in the information file Description. During specific implementation, at first download the information file and a plurality of data files generated in the terminal; The description information of valid data is copied to the information area of the programming file, and the valid data in each valid data file is copied to the data area of the programming file, thereby synthesizing a program that includes both valid data and valid data description information. Burn the file, and then the burning device is powered on and initialized to make it enter the ready state, and download the synthesized burning file including the information area and the data area. In a specific embodiment, the description information of all valid data in the information file can be directly copied to the information area, and then the valid data in each data file can be copied to the data area according to the description information of each valid data. Since the description information includes the starting address of each data file in the flash memory, the size, and the corresponding data file name, the effective data in each data file can be copied according to the arrangement order of the description information of each effective data in the information file , so as to complete the synthesis of the information file and the data file; or first copy the description information corresponding to the first valid data to the information area, and then copy the valid data in the corresponding first data file to the data area; and then copy the The descriptive information of a valid data is sent to the information area, and then the corresponding valid data in the next data file is copied to the data area. Of course, other methods can also be used to copy the description information in the information file to the information area, and copy each valid data to the data area. Refer to FIG. 4 , which is the format of the programming file synthesized in this embodiment. In a specific embodiment, it is necessary to burn a set-top box software into the nandflash of 128M size, the software content includes: uboot, loader, kernel, application, userdata, etc., and these data need to be burned into a specific position in the flash, However, these data do not occupy the entire flash, and the burning file generated in this embodiment is as follows:

00000000000004000000010000008000

0000A000000028000000D0000000A000

0000000200002000

...

uboot data (256K)

loader data (8M)

kernel data (2.5M)

application data (10M)

userdata data (2M).

The valid data and its description information in this embodiment will continue to be used later.

In this embodiment, before synthesizing the programming file, the size of the information area of the programming file can be pre-defined, so that when valid data is read, the valid data can be read directly from a fixed position in the programming file. . Of course, the size of the information area may not be pre-defined, but an information area end mark is set in the information area, so as to facilitate the distinction between the information area and the data area according to the end mark, and the end mark may be set in the information area A specific value at the end position, such as "0", may also be a numerical value set at the beginning of the information area indicating the number of valid data included in the data area.

S12. Read the information area of the programming file to obtain the description information of each valid data, and the description information includes the size of the valid data and its starting address in the flash memory. In a specific embodiment, since the description information of the information area of the synthesized burning file adopts the high and low byte inversion mode, the 5 valid data uboot, loader, The description information of kernel, application, and userdata are: start address 0x0, size 0x40000; start address 0x100000, size 0x800000; start address 0xA00000, size 0x280000; start address 0xD00000, size 0xA00000; start address 0x2000000, size 0x200000 .

S13. According to the description information of each valid data, sequentially read each valid data in the data area of the programming file. During specific implementation, before executing step S13, it is also necessary to detect the flash memory to obtain characteristic information such as how many blocks the flash memory includes and the size of each block, and erase the entire flash memory according to the characteristic information for subsequent programming. In a specific embodiment, first, the flash chip is detected by the burning device, the characteristic information of the flash chip is read, and the entire flash is erased according to the characteristic information.

According to the size of the first valid data uboot; 0x40000, read 256k data sequentially from the beginning of the data area;

According to the size of the second valid data loader: 0x800000, read 8M data sequentially from the end position of the first valid data in the data area;

According to the size of the third valid data kernel: 0x280000, read 2.5M data sequentially from the position where the last valid data in the data area ends;

According to the size of the fourth valid data application: size 0xA00000, read 10M data sequentially from the end position of the previous valid data in the data area;

According to the size of the fifth valid data userdata: 0x200000, read 2M data sequentially from the end position of the previous valid data in the data area.

S14, when each valid data is read, burn the read valid data into the flash memory according to the description information of the valid data. In a specific embodiment, according to the descriptive information such as the size of this valid data read in step S12 and the starting address in flash, write this valid data that reads in the flash:

When the first valid data uboot is read, according to the size of the first valid data uboot and its starting address in the flash: 0x0, immediately write the first valid data uboot to 0x0 of the flash;

When the second valid data loader is read, according to the size of the second valid data loader and its starting address in the flash: 0x100000, immediately write the second valid data loader to 0x100000 of the flash;

When the third valid data kernel is read, according to the size of the third valid data kernel and its starting address in the flash: 0xA00000, immediately write the third valid data kernel to 0xA00000 of the flash;

When the fourth valid data application is read, according to the size of the fourth valid data application and its starting address in the flash: 0xD00000, immediately write the fourth valid data application1 to the 0xD00000 place of the flash;

When the fifth valid data userdata is read, according to the size of the fifth valid data userdata and its starting address in flash: 0x2000000, immediately write the fifth valid data userdata to the 0x2000000 place of flash.

In this embodiment, the information file and at least one data file are synthesized into a burning file including both the information area and the data area, wherein the data area includes valid data in the data file, and the information area includes information corresponding to each valid data in the information file. description information, and then read the information area of the burning file to obtain the description information of the effective data, and read the effective data in the data area of the burning file according to the description information of the effective data, and burn the read effective data Recording into the flash memory, that is, by synthesizing the description information of the effective data and the effective data itself into a burning file, so that the burning file includes both the effective data and the description information of the effective data, thereby avoiding combining the effective data and the effective data When the description information of valid data is placed in two files respectively, the description information file does not match the valid data file due to misoperation. At the same time, because the burning file does not include filling data, the burning file is small and exquisite, and then The filling data is skipped during burning, which is more convenient and safe; and even if there are bad blocks in the flash memory, it only needs to download the burning file once, so as to burn according to the burning file, which improves the efficiency. And less error-prone.

At the same time, the flash memory programming method of this embodiment is also suitable for updating the data in the flash memory. First, the generated data files that need to be updated and the corresponding information files are synthesized into a burning file, that is, the information of the burning file The area includes the description information of the effective data that needs to be updated, and the data area includes the effective data that needs to be updated. Then read the information area of the burning file to obtain the description information of each effective data that needs to be updated. Erase the corresponding area or block in the flash memory. When each area or block is erased, according to the description information, read the corresponding valid data and write it into the erased area or block, avoiding the need to When the updated valid data and its description information are placed in multiple files, the description information file does not match the data file including the updated data due to misoperation, and even if there are bad blocks in the flash memory, it only needs to be downloaded once The burning file, so the burning is performed according to the burning file, which improves the update efficiency of data and is less prone to errors.

However, due to the characteristics of flash memory, bad blocks are prone to appear during erasing or writing. When a bad block occurs, the data will be postponed during burning, that is, written to the next good block, so that the data that should have been burned in a certain position is burned in a certain position after that. For example, when there is a bad block in the loader part of the flash, the data in the kernel, application, and userdata parts will be burned in a position that does not correspond to the starting address, which will cause an error when uboot loads the kernel. In order to avoid the above-mentioned problems, at present, when writing files to the flash with bad blocks, each valid data is usually written separately, that is, the data file including multiple valid data is cut into 5 parts and put into 5 files. As a result, when burning data, it needs to be downloaded, erased, and written five times each, which makes the efficiency of burning low and error-prone. However, this problem can be avoided by adopting the flash memory programming method of the embodiment of the present invention, thereby improving the efficiency of programming, and is less prone to errors.

Referring to FIG. 5 , it is a flow chart of another embodiment of the flash memory programming method of the present invention. This embodiment includes steps S11 to S14 in the above embodiments, the difference is that in this embodiment, before executing step S13, it also includes step: S15, before each valid data is read, according to the description information of the valid data, Erases an area of flash memory that corresponds to valid data. That is to say, in this embodiment, each time an area is erased, another valid data is read, and the read valid data is written into the erased area. In a specific embodiment, if there is uboot that can run in the flash, and the file can be downloaded through tftp, the specific burning implementation process is as follows:

Uboot erases the 256K area of flash starting from 0x0; uboot jumps to the data area of the burning file, reads 256K data sequentially, that is, the first valid data uboot; and writes the first valid data uboot into the erased in the area;

Uboot erases the 8M area of flash starting from 0x100000; uboot jumps to the data area of the burning file, reads 8M data sequentially, that is, the second valid data loader; and writes the second valid data uboot into the erased in the area;

Uboot erases the 2.5M size area of the flash starting from 0xA00000; uboot jumps to the data area of the burning file, reads 2.5M data sequentially, that is, the third valid data kernel; and writes the third valid data uboot into all in the erased area;

Uboot erases the 10M area of flash starting from 0xD00000; uboot jumps to the data area of the burning file, reads the 10M valid data sequentially, that is, the fourth application; and writes the fourth valid data into the erased in the area;

Uboot erases the 2M size area of flash starting from 0x2000000, uboot jumps to the data area of the burning file, reads 2M data sequentially, that is, the fifth valid data userdata; and writes the fifth valid data uboot into the erased in the area.

Referring to FIG. 6 , it is a flow chart of another embodiment of the flash memory programming method of the present invention. This embodiment includes steps S11 to S14 in the above embodiment, the difference is that in this embodiment, before executing this step S14, it also includes a step: S16, whenever a valid data is read, it is detected that the valid data will be written. Whether the current block of data is a bad block. If the detection result is no, burn the valid data into the current block, that is, execute step S14; if the detection result is yes, execute step S17. During specific implementation, the mode of detecting whether the current block is a bad block includes: one, the bad block in the flash memory has a bad block mark, before writing valid data, detect whether this block has a bad block mark, if so, then detect the next Whether the block has a bad block mark, if not, then write the valid data into the block, if so, continue to detect the next block until a good block is found; 2, write the data into the block, and then Read the written data and compare whether the read data is the same as the written data. If they are the same, the block is not a bad block, otherwise the block is a bad block. If it is a bad block, use the same method to detect Next block until a good block is found.

S17. Skip the current block, and write the read valid data into a subsequent block that is not a bad block.

Implement the flash memory programming method of the embodiment of the present invention, by synthesizing the information file and the data file into a programming file including valid data and description information of the valid data, and obtaining valid data and corresponding description information therefrom, and then Write valid data into the flash memory according to the description information, and when a bad block is encountered, there is no need to divide each valid data into multiple files, that is, only need to download the burning file once, and then the burning file can be downloaded from the burning file. The description information of each valid data and the valid data itself are obtained, and the valid data is written into the flash memory according to the description information, thereby improving the burning efficiency and making it less prone to errors.

Based on the above flash memory programming method, an embodiment of the present invention also provides a programming device. The burning device according to the embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 7 , it is a functional block diagram of an embodiment of the burning device of the present invention. During specific implementation, the burning equipment of the embodiment of the present invention includes:

Descriptive information reading module 11, is used for reading the information file that downloads and at least one data file is synthesized into the information area that comprises the burning file of information area and data area, obtains the descriptive information of effective data in each data file; The The data area includes valid data in each data file, and the information area includes description information corresponding to each valid data in the information file; during specific implementation, the size of the information area can be pre-defined, and of course it can also be included in the information area Set the end flag inside;

The valid data reading module 12 is used to read each valid data in the data area sequentially according to the description information of each valid data; during specific implementation, if the size of the information area is predefined, the valid data reading module 12 directly Begin to sequentially read the valid data in the data area from the fixed position of the burning file; or if the information area end mark is set in the information area, then the valid data reading module 12 directly reads from the data area according to the end mark of the information area read valid data;

The burning module 13 is used for burning the valid data into the flash memory according to the description information of the valid data when each valid data is read.

Implement the burning equipment of this embodiment, obtain the description information of effective data by reading the information area of the burning file that includes information area and data area, then read effective data according to description information, namely by reading and include effective data , including the burning file corresponding to the description information of the valid data to burn the data, thereby avoiding placing the valid data and the description information of the valid data in multiple files (multiple data files and a description information file ), the description information file does not match the effective data file due to misoperation. At the same time, because the burning file does not include filling data, the burning file is small, and the filling data is skipped during burning. It is more convenient and safe when recording; and even if there are bad blocks in the flash memory, it only needs to download the burning file once, and then burn according to the burning file, which improves the efficiency and is not easy to make mistakes.

Referring to FIG. 8 , it is a functional block diagram of another embodiment of the burning device of the present invention. During specific implementation, the burning device of this embodiment also includes the above-mentioned description information reading module 11, valid data reading module 12 and burning module 13, and the same modules use the same names and reference signs, and the difference is that this The burning device of the embodiment of the invention also includes:

Detection module 14 is used to detect whether the current block of the valid data to be written in the flash memory is a block when each valid data is read;

The burning module 14 of the present embodiment is used to write the valid data read into the current block when it detects that the current block to be written into the valid data is not a bad block every time a valid data is read. or when each valid data is read and the current block to which the valid data is to be written is detected to be a bad block, the current block is skipped and the valid data read is written to the subsequent non-bad block in the block.

Subsequent blocks that are not bad blocks in this embodiment refer to that when the detection module detects that the current block is a bad block, then continue to detect whether the next block is a bad block, and if so, continue to detect whether the next block is a bad block. Bad blocks until a block that is not a bad block is detected, then the block that is not a bad block is the subsequent block of the current block and is not a bad block.

The recording device of this embodiment may also include:

The feature information acquisition module is used to detect the flash memory and obtain the feature information of the flash memory, such as how many blocks the flash memory includes, the size of each block, etc.;

The flash memory erasing module is used for erasing the entire flash memory according to the obtained feature information.

The burning device in this embodiment reads the burning file that includes both valid data description information and valid data, and when the description information reading module reads the corresponding valid data in the information area of the burning file Before describing the information, the flash memory erasing module will erase the entire flash memory, and then read the description information, and the valid data reading module will read the corresponding valid data in the data area according to the read description information, and finally the burning module will The valid data is written into the flash memory, so that when a bad block is encountered, the data file does not need to be downloaded multiple times, which improves the burning efficiency and is not prone to errors.

In another specific embodiment, the burning device of the embodiment of the present invention also includes the above-mentioned description information reading module 11, valid data reading module 12 and burning module 13, and the same modules use the same names and reference numerals , the difference is that the burning device of this embodiment also includes:

The area erasing module is used for erasing the area corresponding to the valid data in the flash memory according to the description information of the valid data before each valid data is read.

The burning device in this embodiment reads the burning file that includes both valid data description information and valid data, and when the description information reading module reads the description information of each valid data, the area erasing module according to The description information of each valid data, when erasing a region corresponding to a valid data, read the corresponding valid data in the data area by the valid data reading module, and write the valid data into the valid data by the burning module In the area, when a bad block is encountered, there is no need to download the data file multiple times, which improves the burning efficiency and is not easy to make mistakes.

Referring to Fig. 9, the embodiment of the present invention also provides a burning system, including:

Combination module 21, is used for synthesizing the information file of downloading and at least one data file into the burning file that comprises data area and information area, wherein this data area comprises the effective data in each data file, and information area comprises corresponding effective data Description information; during specific implementation, the synthesis module 21 can first download or import an information file and corresponding multiple data files in a terminal (such as a computer), and copy the description information of the effective data in the information file to the burning The information area in the file, copy the valid data in each data file to the data area in the burning file, and then synthesize a burning file that includes both valid data and description information, so that the burning device only needs to Reading the burning file can execute the burning of data; in a specific embodiment, the synthesis module 21 can be realized by a piece of software;

The burning system also includes the burning device 1 in the above-mentioned embodiment; during specific implementation, the burning device 1 can directly read the description information of the information area in the synthesized burning file, and the valid data of the data area, and Each effective data is written into the flash memory according to the read description information.

What is disclosed above is only a preferred embodiment of the present invention, and certainly cannot limit the scope of rights of the present invention with this. Those of ordinary skill in the art can understand the whole or part of the process of realizing the above-mentioned embodiment, and make according to the claims of the present invention The equivalent changes still belong to the scope covered by the invention.

Claims (10)

1. A flash memory programming method, is characterized in that, comprising: The downloaded information file and at least one data file are synthesized into a burning file including a data area and an information area, the data area includes valid data in each of the data files, and the information area includes the information in the information file Descriptive information corresponding to the valid data; Read the information area of the burning file to obtain the descriptive information of each valid data; the descriptive information includes the starting address and size of the valid data in the flash memory; According to the description information of each valid data, sequentially read each valid data in the data area; When each valid data is read, burn the read valid data into the flash memory according to the description information of the valid data; Wherein, the downloading information file and at least one data file are synthesized into a burning file including a data area and an information area, including: Copy the description information of the valid data in the downloaded information file to the information area of the burning file; According to the description information in the information area, the valid data in each downloaded data file is copied to the data area of the burning file. 2. flash memory programming method as claimed in claim 1, is characterized in that, before the step of obtaining the descriptive information of each valid data, also comprising: Detecting the flash memory to obtain characteristic information of the flash memory; Erase the entire flash memory according to the characteristic information. 3. The flash memory programming method according to claim 1, wherein the step of sequentially reading each valid data in the data area according to the description information of each valid data specifically includes: Before each valid data is read, according to the description information of the valid data, the area corresponding to the valid data in the flash memory is erased; According to the description information of the valid data, the valid data in the data area is read. 4. The flash memory programming method according to claim 2 or 3, wherein when each valid data is read, the read valid data is read according to the description information of the valid data read. The steps of burning data into the flash memory include: When each valid data is read, check whether the current block to be written into the valid data is a bad block, if not, write the valid data into the current block; if the current block is a bad block, skip The current block writes the read valid data into a subsequent block that is not a bad block. 5. The flash memory programming method according to claim 4, wherein the size of the information area is predefined or the information area includes an information area end mark. 6. A burning device, characterized in that, comprising: The description information reading module is used to read the information area that synthesizes the information file and at least one data file into the burning file including the information area and the data area, and obtains the description information of valid data in each data file; the data area includes Effective data in each data file, the information area includes description information corresponding to the effective data in the information file; the description information includes the size of the effective data and its starting address in the flash memory, the The description information is information copied into the information area by the burning device, and each valid data is copied to the information area by the burning device according to the description information corresponding to the valid data in the information area. data in the data area; a valid data reading module, configured to sequentially read each valid data in the data area according to the description information of each valid data; The burning module is configured to burn the read valid data into the flash memory according to the description information of the valid data each time a valid data is read. 7. burning equipment as claimed in claim 6, is characterized in that, described burning equipment also comprises: A feature information acquisition module, configured to detect the flash memory and obtain feature information of the flash memory; The flash memory erasing module is used for erasing the entire flash memory according to the characteristic information. 8. The burning device according to claim 6, characterized in that, the burning device further comprises; The area erasing module is used to erase the area corresponding to the valid data in the flash memory according to the description information of the valid data before each valid data read by the valid data reading module; The burning module is used to write the read valid data into the area corresponding to the valid data erased by the area erasing module according to the description information of the valid data each time a valid data is read. in the area. 9. The burning device according to any one of claims 6 to 8, further comprising: The detection module is used to detect whether the current block to be written with the valid data in the flash memory is a bad block when each valid data is read; The burning module is used to write the read valid data into the current block when each valid data is read and it is detected that the current block to which the valid data will be written is not a bad block; or Every time a valid data is read, and when it is detected that the current block to be written into the valid data is a bad block, the current block is skipped, and the valid data read is written into the subsequent non-bad block block. 10. A burning system, characterized in that, comprising: Synthesis module, for synthesizing the downloaded information file and at least one data file into a burning file including data area and information area; The burning device according to any one of claims 6-9.