CN106909418B - Single chip microcomputer system updating method and device - Google Patents
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Abstract
The invention relates to a method and a device for updating a single chip microcomputer system, wherein the method comprises the following steps: receiving a system updating instruction; acquiring a preset update file from a single-chip microcomputer memory according to the system update instruction; and operating the update file, and writing an update program in the update file into the flash memory of the single chip microcomputer. The method and the device for updating the system of the single chip microcomputer can improve the system updating efficiency of the single chip microcomputer.
Description
Technical Field
The invention relates to the technical field of information processing, in particular to a method and a device for updating a single chip microcomputer system.
Background
In the traditional method for updating the system of the single chip microcomputer, the system of the single chip microcomputer is updated by calling a special single chip microcomputer updating program installed on a computer when the system of the single chip microcomputer is required to be connected to the computer. The method has to rely on the assistance of a computer, so that the updating efficiency of the singlechip system is not high.
Disclosure of Invention
Therefore, it is necessary to provide a method and an apparatus for updating a single chip microcomputer system, which can improve the updating efficiency of the single chip microcomputer system, in order to solve the above technical problems.
A single chip microcomputer system updating method comprises the following steps:
receiving a system updating instruction;
acquiring a preset update file from a single-chip microcomputer memory according to the system update instruction;
and operating the update file, and writing an update program in the update file into the flash memory of the single chip microcomputer.
In one embodiment, the step of obtaining a preset update file from a single chip memory according to the system update instruction includes:
and acquiring a file with an extension name of a preset data type from a preset path in the memory of the single chip microcomputer according to the system updating instruction, and taking the file as the updating file.
In one embodiment, when the updated file does not exist in the preset path, traversing the file in the memory;
and copying or cutting the searched file with the extension name as a preset data type into the preset path to be used as the update file.
In one embodiment, after the step of writing the update program in the update file into the flash memory of the single chip microcomputer, the method further includes:
and restarting the single chip microcomputer, and configuring interface parameters according to the update file in the restarting process.
In one embodiment, before the step of running the update file, the method further includes:
and detecting whether a task which is not completely executed exists, if so, waiting for the task which is not completely executed to be completely executed, or receiving an instruction for forcibly updating the system, and executing the step of operating the update file.
A single chip microcomputer system updating device comprises:
the updating instruction receiving module is used for receiving a system updating instruction;
the update file acquisition module is used for acquiring a preset update file from the single-chip microcomputer memory according to the system update instruction;
and the system updating module is used for operating the updating file and writing the updating program in the updating file into the flash memory of the single chip microcomputer.
In one embodiment, the update file obtaining module is further configured to obtain, as the update file, a file with an extension name of a preset data type from a preset path in the monolithic processor memory according to the system update instruction.
In one embodiment, the update file obtaining module is further configured to traverse files in the memory when the update file does not exist in the preset path; and copying or cutting the searched file with the extension name as a preset data type into the preset path to be used as the update file.
In one embodiment, the system updating module is further configured to restart the single chip microcomputer, and perform interface parameter configuration according to the update file during the restart process.
In one embodiment, the apparatus further comprises:
and the task detection module is used for detecting whether the tasks which are not completely executed exist, if so, calling the system updating module to operate the updating file, and writing the updating program in the updating file into the flash memory of the single chip microcomputer.
According to the method and the device for updating the single chip microcomputer system, the preset update file is obtained from the memory of the single chip microcomputer, the update file is operated, and the update program in the update file is written into the flash memory of the single chip microcomputer, so that the single chip microcomputer system is updated. Because the updating file is directly read from the memory of the system, a special computer is not needed, and the updating efficiency and the updating convenience of the system can be improved.
Drawings
FIG. 1 is a flow chart of a method for updating a single-chip microcomputer system in one embodiment;
FIG. 2 is a schematic diagram of an updated interface of the single chip microcomputer system in one embodiment;
FIG. 3 is a flow chart of a method for updating a single chip microcomputer system in another embodiment;
FIG. 4 is a block diagram of an embodiment of an updating apparatus for a single-chip microcomputer system;
fig. 5 is a block diagram of a single chip microcomputer system updating device in another embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In one embodiment, as shown in fig. 1, a method for updating a system of a single chip microcomputer is provided, and the method can be applied to the single chip microcomputer. Specifically, the method includes the following steps S102 to S106. Wherein:
step S102, receiving a system updating instruction.
In this embodiment, the single chip microcomputer (Microcontrollers) is an integrated circuit chip, and is a small and perfect microcomputer system formed by integrating functions (possibly including a display driving circuit, a pulse width modulation circuit, an analog multiplexer, an a/D converter, and the like) of a central processing unit CPU, a random access memory RAM, a read only memory ROM, various I/O ports, an interrupt system, a timer/counter, and the like, which have data processing capability, onto one silicon chip by using a very large scale integrated circuit technology, and is widely applied in the field of industrial control.
The single chip microcomputer runs an application program capable of updating the system, and the control single chip microcomputer can be loaded and written into an update file through the application program to realize system updating of the single chip microcomputer. By starting the application program, the operation of the entity or virtual key acting on the single chip microcomputer is obtained, and a system updating instruction in the application program is triggered to update the system of the single chip microcomputer. Including performing system upgrades or system restores, etc.
For example, if a combination of one or more entity keys is preset on the single chip microcomputer, the system update instruction in the application program can be triggered by operating the one or more entity keys according to a preset sequence. Or, if the single chip microcomputer can display the update interface of the application program, the update interface comprises a virtual key for updating the system, and the system update instruction can be triggered by receiving the triggering operation acting on the virtual key through the input device.
And step S104, acquiring a preset update file from the single chip microcomputer memory according to the system update instruction.
In this embodiment, the memory of the single chip microcomputer (such as the random access memory RAM) includes a fixed memory carried by the single chip microcomputer itself, for example, a local memory of the single chip microcomputer itself. The system also comprises an external Memory arranged in a Memory socket of the singlechip, such as a U disk or an SD Memory Card (Secure Digital Memory Card/SD Card) and other storage devices accessed to the singlechip.
The memory is pre-stored with an update file, and the update file is used for updating the system of the singlechip. The single chip microcomputer can search and acquire the update file from any memory according to the system update instruction. When the searched update file comprises a plurality of files, the user can be prompted to select. And when a selection instruction for one of the update files is received, the selected update file is used as an update file for updating the single chip microcomputer system. If only one update file exists, the update file can be directly used as an update file for updating the singlechip microcomputer system.
And step S106, operating the update file, and writing the update program in the update file into the flash memory of the single chip microcomputer.
In this embodiment, a Flash Memory (Flash EEPROM Memory, abbreviated as Flash) of the single chip microcomputer is generally used to store a user program and data that needs to be permanently stored. For example, the application program capable of performing system update can be stored in the flash of the single chip microcomputer. The single chip microcomputer can analyze and operate the update file through the application program, the update program in the update file is written into the flash of the single chip microcomputer, the update program is operated, and the flash area in a program storage chip in the single chip microcomputer is refreshed, so that the single chip microcomputer is upgraded. Specifically, the system data originally stored in the flash memory can be erased, and the system data in the analyzed update file is replaced with the original system data, so that the system update is realized.
According to the method for updating the single chip microcomputer system, the preset updating file is obtained from the memory of the single chip microcomputer, the updating file is operated, and the updating program in the updating file is written into the flash memory of the single chip microcomputer, so that the single chip microcomputer system is updated. Because the updating file is directly read from the memory of the system, a special computer is not needed, and the updating efficiency and the updating convenience of the system can be improved.
In one embodiment, the step of obtaining a preset update file from a memory of a single chip according to a system update instruction includes: and acquiring a file with the extension name of a preset data type from a preset path in the memory of the single chip microcomputer according to the system updating instruction as an updating file.
In this embodiment, the update file generally needs to be stored in a specific path or paths to be recognized by the application, and the extension of the update file is a specific extension (i.e. a suffix of the file). The specific one or more paths may be all used as preset paths, and the specific extension may be used as a preset extension. The single chip microcomputer can be obtained from each preset path through the application program, obtain the extension name carried by each file, and detect whether the extension name is the same as the preset extension name or not. If yes, the file is used as an update file.
Fig. 2 is a schematic diagram of an updated interface of the single chip microcomputer system in one embodiment. Wherein, the corresponding system update is specifically system upgrade. The extension of the update file is preset as "bin". The preset path is a XXX folder under any disk root directory. The memory includes a local disk, a U disk and an SD card. The singlechip can search the files with the corresponding extension name of "bin" in the "XXX" folder under the root directories of the three disks, and display the search result. Displaying each update file existing in each preset path on the interface, receiving a selection instruction of a user for one of the update files, prompting the user whether to start system update after determining the selected update file, and executing the step S106 after receiving a confirmation instruction for starting system update. For example, after determining the update file and the path, a click command for a button of "start upgrade" in the interface may be received, the above step S106 may be performed, and the progress of the system update may be displayed in the interface in the form of a progress bar.
In one embodiment, when no update file exists in the preset path, traversing the file in the memory; and copying or cutting the searched file with the extension name as the preset data type into a preset path to be used as an update file.
In this embodiment, when the corresponding update file is not retrieved from the preset path, all files may be traversed from the memory, whether a file with a corresponding extension exists in another path is detected, and the retrieved extension is copied or cut into one of the preset paths to be used as the update file. Specifically, the retrieved files with preset extensions can be displayed in the display interface, a selection instruction of the user for one of the files is received, and the selected file is copied or cut to a specified one of the preset paths. For example, after receiving a selection instruction for one of the files, the file may be automatically copied to the "XXX" folder in the root directory of the local disk according to the selection instruction. And after receiving the command for starting the system update, the above step S106 is executed, or after the copy is completed, the above step S106 is executed immediately.
In this embodiment, a situation that the update file does not exist in the preset path is also considered, and when the situation occurs, the update file is traversed from the memory, and the retrieved update file is copied or cut into the preset path, so that system update can be smoothly performed, and the efficiency of system update of the single chip microcomputer is further improved.
In an embodiment, as shown in fig. 3, another method for upgrading a single chip microcomputer system is provided, where after step S106, the method further includes:
and S108, restarting the single chip microcomputer, and configuring interface parameters according to the update file in the restarting process.
In this embodiment, in the process of restarting the power on, the interface call content with the single chip microcomputer can be reset, so as to update the interface parameters, and improve the system update of the single chip microcomputer. Therefore, compared with the method for upgrading the software of the whole system for upgrading the software of a single chip microcomputer, the method is more convenient and faster.
In an embodiment, before the step of running the update file, the method for upgrading a single chip microcomputer system further includes: and detecting whether the tasks which are not completely executed exist, if so, waiting for the tasks which are not completely executed to be completely executed, or receiving an instruction for forcibly updating the system, and executing the step of running the updated file.
In this embodiment, whether there is execution of an application program unrelated to system update on the single chip microcomputer can be detected. Specifically, it is possible to detect whether there are other application programs being executed in the task manager, and run the update file after the application programs are executed. Or displaying the application program which is not completely executed in the interface, prompting a user whether to forcibly update, if so, backing up the application program which is not completely executed, running the update file, and after the system is completely updated, continuing to start the application program and execute the application program according to the backed-up information. In one embodiment, the above steps may be performed in any process after step S102 and before step S106, and are not particularly limited.
In one embodiment, before step S106, the update file to be executed may be parsed, and it is detected whether all necessary system data for performing system update is included in the update file. If yes, go to step S106. Otherwise, information lacking the necessary system data may be displayed.
In this embodiment, the single chip microcomputer is also preset with information of part or all of necessary update data required for system update. For example, a calling function, an instruction, etc. corresponding to the update data, or some related necessary keywords may be set. The single chip microcomputer can analyze whether the update data exist in the acquired update file or not so as to carry out integrity check on the update file. If the update file is detected to lack the necessary update data, or the update data which is not allowed to appear appears, a prompt is made. And further prompting whether to abandon running the update file and providing an option whether to continue updating the system. If receiving an instruction of abandoning operation, canceling system updating; if the instruction for continuing updating is received, the step S106 is executed to run the updated file and update the system. If it is detected that the necessary update data is not lacked and there is no unallowable update data, the above-described step S106 is directly performed.
In this embodiment, by detecting whether the update file has necessary update data, the integrity of the update file can be further ensured, so as to avoid a failure of the determined update file, and reduce the risk of system update.
In one embodiment, as shown in fig. 4, the device is an embodiment of a system updating device for a single chip microcomputer, and the device can operate on the single chip microcomputer. The method comprises the following steps: specifically, the method comprises the following steps: an update instruction receiving module 402, an update file obtaining module 404, and a system updating module 406. Wherein:
an update instruction receiving module 402, configured to receive a system update instruction.
An update file obtaining module 404, configured to obtain a preset update file from the monolithic computer memory according to the system update instruction.
And the system updating module 406 is used for operating the update file and writing the update program in the update file into the flash memory of the single chip microcomputer.
In an embodiment, the update file obtaining module 404 is further configured to obtain, as the update file, a file with an extension name of a preset data type from a preset path in the one-chip memory according to the system update instruction.
In an embodiment, the update file obtaining module 404 is further configured to traverse files in the memory when no update file exists in the preset path; and copying or cutting the searched file with the extension name as the preset data type into a preset path to be used as an update file.
In one embodiment, the system update module 406 is further configured to restart the single chip microcomputer, and configure the interface parameters according to the update file during the restart process.
In one embodiment, as shown in fig. 5, the device is an update device of a single chip microcomputer system in another embodiment. The device also includes:
and the task detection module 508 is configured to detect whether an unexecuted task exists, and if yes, invoke the system update module to run an update file, and write an update program in the update file into the flash memory of the single chip microcomputer.
In an embodiment, the system update module 406 is further configured to parse an update file to be executed, detect whether the update file includes all necessary system data for performing system update, if yes, execute the update file, and write an update program in the update file into the flash memory of the single chip microcomputer.
According to the single chip microcomputer system updating device, the preset updating file is obtained from the single chip microcomputer memory, the updating file is operated, and the updating program in the updating file is written into the single chip microcomputer flash memory, so that the single chip microcomputer system is updated. Because the updating file is directly read from the memory of the system, a special computer is not needed, and the updating efficiency and the updating convenience of the system can be improved.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, which can be stored in a non-volatile computer-readable storage medium, and can include the processes of the embodiments of the methods described above when the program is executed. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), or the like.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. A single chip microcomputer system updating method is executed on an application program which runs on a single chip microcomputer and can carry out system updating, and is characterized by comprising the following steps:
displaying an updating interface of the application program, wherein the updating interface comprises a virtual key for updating a system;
responding to the triggering operation of the virtual key, and receiving a system updating instruction;
acquiring a preset update file from a single-chip microcomputer memory according to the system update instruction; the updating file is stored in the memory in advance;
acquiring information corresponding to updating data which is preset in the single chip microcomputer and is required for system updating; the information corresponding to the updating data comprises at least one of a calling function, an instruction or a keyword;
detecting whether the update file contains all necessary system data for system update according to the information corresponding to the update data;
if yes, the updating file is operated, the updating program in the updating file is written into a flash memory of the single chip microcomputer, the updating program is operated, a flash memory area in a program storage chip in the single chip microcomputer is refreshed, and the single chip microcomputer is upgraded.
2. The method according to claim 1, wherein the step of obtaining the preset update file from the one-chip memory according to the system update instruction comprises:
and acquiring a file with an extension name of a preset data type from a preset path in the memory of the single chip microcomputer according to the system updating instruction, and taking the file as the updating file.
3. The method according to claim 2, wherein when the updated file does not exist in the preset path, traversing the file in the memory;
and copying or cutting the searched file with the extension name as a preset data type into the preset path to be used as the update file.
4. The method according to claim 1, wherein after the step of writing the update program in the update file into the flash memory of the single chip microcomputer, the method further comprises:
and restarting the single chip microcomputer, and configuring interface parameters according to the update file in the restarting process.
5. The method of claim 1, further comprising, prior to the step of running the update file:
and detecting whether a task which is not completely executed exists, if so, waiting for the task which is not completely executed to be completely executed, or receiving an instruction for forcibly updating the system, and executing the step of operating the update file.
6. A single chip microcomputer system updating device is characterized by comprising:
the system comprises an update instruction receiving module, a system updating module and a display module, wherein the update instruction receiving module is used for displaying an update interface of an application program, and the update interface comprises a virtual key for updating a system; responding to the triggering operation of the virtual key, and receiving a system updating instruction;
the update file acquisition module is used for acquiring a preset update file from the single-chip microcomputer memory according to the system update instruction; the updating file is stored in the memory in advance;
the system updating module is used for acquiring information corresponding to updating data which is preset in the single chip microcomputer and is required for system updating; the information corresponding to the updating data comprises at least one of a calling function, an instruction or a keyword; detecting whether the update file contains all necessary system data for system update according to the information corresponding to the update data; if yes, the updating file is operated, the updating program in the updating file is written into a flash memory of the single chip microcomputer, the updating program is operated, a flash memory area in a program storage chip in the single chip microcomputer is refreshed, and the single chip microcomputer is upgraded.
7. The apparatus according to claim 6, wherein the update file obtaining module is further configured to obtain, as the update file, a file with an extension name of a preset data type from a preset path in the monolithic computer memory according to the system update instruction.
8. The apparatus according to claim 7, wherein the update file obtaining module is further configured to traverse files in the memory when the update file does not exist in the preset path; and copying or cutting the searched file with the extension name as a preset data type into the preset path to be used as the update file.
9. The device of claim 6, wherein the system update module is further configured to restart the single chip microcomputer, and perform interface parameter configuration according to the update file during a restart process.
10. The apparatus of claim 6, further comprising:
and the task detection module is used for detecting whether the tasks which are not completely executed exist, if so, calling the system updating module to operate the updating file, and writing the updating program in the updating file into the flash memory of the single chip microcomputer.
11. A single-chip microcomputer comprising a memory and a processor, the memory storing a computer program which, when executed by the processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 5.
12. A computer-readable storage medium, storing a computer program which, when executed by a processor, causes the processor to carry out the steps of the method according to any one of claims 1 to 5.
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