CN104503809A - Application update download method and device - Google Patents
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Abstract
The invention discloses an application update download method and device. The method comprises presetting a Boot bootstrap program and a Loader download program in a read-only or flash memory of a chip and performing corresponding application update download processing according to different Boot_Flag in the Boot bootstrap program. By means of the device and the method, the Boot bootstrap program and the Loader download program are preset, and corresponding application download processing is performed through different Boot_Flag in the Boot bootstrap program, accordingly, the defect that corresponding application update download cannot be performed due to problems of patch interfaces or communication interfaces is prevented. Different Boot_Flag corresponding to all update download processing stages are preset, and accordingly, download or debugging of update applications can be performed according to different Boot_Flag.
Description
Technical Field
The present application relates to communications application technologies, and in particular, to a method and an apparatus for implementing application download update.
Background
Currently, in the production of an Integrated Circuit (IC) card chip, an IC chip card (operating system on chip) COS application program is masked into the IC chip, and then an IC chip card packaging test is performed. In the testing process, application downloading and updating are often required, and the application downloading and updating are mainly required in the following cases: 1. the application cannot run on an IC chip; 2. the functions applied in the IC chip card need to be increased and decreased; 3. in order to meet the requirements of other products, the applications need to be completely updated. The main method for downloading and updating the application program of the IC chip card comprises the following steps: 1. reserving a patch interface in the IC chip card application, and executing downloading and debugging of application updating through a patch program; 2. by reserving BootLoader, when application updating is needed, the updated application is downloaded after the IC chip card application is erased.
The method for application updating by reserving the patch interface can only replace limited function functions through the reserved patch interface, the original function functions are stored in the IC card, a new storage space is needed to store the program of the updated function functions, and the storage space consumption is large; if the reserved patch interface does not contain an interface required by the updated application function, updating of the application cannot be realized; when the program of the reserved patch interface has a problem, the communication interaction function of the patch interface cannot be realized, that is, the downloading and updating of the application cannot be completed. In the technical scheme of reserving the BootLoader program for updating, the application is debugged when the value of BootFlag is 1, the operation of deleting the BootFlag is carried out after the application debugging is finished, and after the BootFlag is deleted, the application cannot be updated and downloaded through the Boot; meanwhile, if a problem occurs in the communication interface for updating the downloaded IC card application, the communication interaction function of the communication interface cannot be realized, and the downloading of the related application update cannot be performed.
In summary, the two existing application updating methods are methods for updating applications through patch interfaces, and if the required patch interfaces are not reserved, the application updating cannot be realized; the method for updating the application by starting a downloading and Boot update (BootLoader) program cannot re-debug the application related to the communication interface and cannot re-download the application update because Boot Flag is deleted when the application debugging is finished; if the communication interface of the application has a problem, the communication interaction function of the communication interface cannot be realized, and the downloading of the related application update cannot be performed.
Disclosure of Invention
In order to solve the above problems, the present invention provides a method and an apparatus for implementing application download update, which can solve the problem of a patch interface or a communication interface, thereby affecting download update and implementing download update processing of an application.
In order to achieve the purpose of the invention, the application provides a method for realizing application downloading and updating; the method comprises the following steps:
and carrying out corresponding application downloading and updating processing according to different Boot identifiers, namely Boot _ Flag, in the Boot bootstrap program.
Further, the method also comprises the following steps:
presetting processing of application downloading and updating corresponding to different Boot _ flags in a Boot bootstrap program, which specifically comprises the following steps:
the method is characterized in that the method is preset,
when the chip is powered on and started for the first time, the Boot _ Flag in the Boot bootstrap program is a first Flag value; when Boot _ Flag is the first Flag value, the application download update process is as follows: downloading the application update by a Loader downloading program;
when the application updating downloading is finished, the Boot _ Flag in the Boot bootstrap program is a value which is larger than the first Flag value and smaller than the second Flag value; when the Boot _ Flag is greater than the first Flag value and less than the second Flag value, the application download update process is as follows: entering updating and debugging of the application;
when the updating and debugging of the application are finished, Boot _ Flag in a Boot bootstrap program is larger than a second Flag value; when the Boot _ Flag is greater than the second Flag value, the application download update is processed as follows: and the Loader downloads the program identification to finish the update debugging of the application.
Further, the method further comprises:
when the updating and debugging of the application are executed, any value which is larger than a first Flag value and smaller than a second Flag value is selected in advance as the current Boot _ Flag;
when the Loader downloading program needs to be re-entered, adjusting Boot _ Flag to a first Flag value through power-on reset;
and re-entering a Loader downloading program according to the adjusted Boot _ Flag as the first Flag value, erasing the original application in the chip, and re-downloading the application update.
Further, check matching information is added to a Loader downloading program, and the method further comprises the following steps:
when updating and downloading the application, identifying an application updating data packet in the data packets received by the Loader downloading program;
matching the check information added in advance in the application updating data packet with the check matching information, and adding a check confirmation identifier to each data instruction contained in the data packet when the matching is completed; otherwise, refusing to download the data instruction of the application updated data packet;
and receiving the data instructions added with the verification confirmation identifications one by one until the downloading of all application updating data instructions in the data packet is completed.
Further, after identifying that the update debugging of the application is completed, the method further includes:
stopping or starting a Boot bootstrap program through an external instruction;
when the Boot bootstrap program is stopped, clearing Boot _ Flag to terminate the processing of application downloading and updating;
when the Boot bootstrap program is started, corresponding application downloading and updating processing is carried out according to different Boot identification Boot _ Flag in the Boot bootstrap program.
On the other hand, the application also provides a device for realizing application downloading and updating, which comprises: the device comprises a presetting unit and a downloading updating unit; wherein,
the device comprises a program setting unit, a starting unit and a loading unit, wherein the program setting unit is used for presetting a Boot (Boot) bootstrap program and an update (Loader) downloading program in a read-only or flash memory of a chip;
and the download updating unit is used for carrying out corresponding application download updating processing according to different Boot identifiers Boot _ Flag in the Boot bootstrap program.
Further, the device also comprises an updating preset unit,
for the purpose of the pre-setting of the,
when the chip is powered on and started for the first time, the Boot _ Flag in the Boot bootstrap program is a first Flag value; when Boot _ Flag is the first Flag value, the application download update process is as follows: downloading the application update by a Loader downloading program;
when the application updating downloading is finished, the Boot _ Flag in the Boot bootstrap program is a value which is larger than the first Flag value and smaller than the second Flag value; when the Boot _ Flag is greater than the first Flag value and less than the second Flag value, the application download update process is as follows: entering updating and debugging of the application;
when the updating and debugging of the application are finished, Boot _ Flag in a Boot bootstrap program is larger than a second Flag value; when the Boot _ Flag is greater than the second Flag value, the application download update is processed as follows: and the Loader downloads the program identification to finish the update debugging of the application.
Further, the apparatus further comprises: the starting identification adjusting unit is used for selecting any value larger than the first Flag value and smaller than the second Flag value as the current Boot _ Flag in advance when the updating and debugging of the application are executed;
when the Loader downloading program needs to be re-entered, adjusting Boot _ Flag to a first Flag value through power-on reset;
and the download updating unit is further configured to erase the original application in the chip and download the application update after receiving that the adjusted Boot _ Flag is the first Flag value.
Further, the device also comprises a checking unit used for adding checking matching information in the Loader downloading program,
when updating and downloading the application, identifying an application updating data packet in the data packets received by the Loader downloading program;
matching the check information added in advance in the application updating data packet with the check matching information, and adding a check confirmation identifier to each data instruction contained in the data packet when the matching is completed; otherwise, refusing to download the data instruction of the application updated data packet;
and receiving the data instructions added with the verification confirmation identifications one by one until the downloading of all application updating data instructions in the data packet is completed.
Furthermore, the device also comprises a switch unit, which is used for stopping or starting the Boot bootstrap program through an external instruction after the mark finishes the updating and debugging of the application;
when the Boot bootstrap program is stopped, clearing Boot _ Flag to terminate the processing of application downloading and updating;
when the Boot bootstrap program is started, corresponding application downloading and updating processing is carried out according to different Boot identification Boot _ Flag in the Boot bootstrap program.
Compared with the prior art, the technical scheme provided by the invention comprises the following steps: presetting a Boot (Boot) bootstrap program and an update (Loader) download program in a read-only or flash memory of a chip; further comprising: and carrying out corresponding application downloading and updating processing according to different Boot identifiers, namely Boot _ Flag, in the Boot bootstrap program. According to the invention, after the Boot bootstrap program and the Loader download program, corresponding application downloading and updating processing is carried out through different starting identifiers in the Boot bootstrap program, so that the problem that the application can not be downloaded and updated due to the existence of a patch interface or a communication interface when application debugging is carried out is avoided. The application downloading update is downloaded or debugged according to different starting identifiers by presetting different starting identifiers corresponding to each stage of the corresponding application downloading update processing.
Drawings
The accompanying drawings are included to provide a further understanding of the claimed subject matter and are incorporated in and constitute a part of this specification, illustrate embodiments of the subject matter and together with the description serve to explain the principles of the subject matter and not to limit the subject matter.
FIG. 1 is a flow chart of a method of implementing application download updates in accordance with the present invention;
fig. 2 is a block diagram of an apparatus for implementing application download update according to the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the present application more apparent, embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
Fig. 1 is a flowchart of a method for implementing application download update according to the present invention, as shown in fig. 1, a Boot bootstrap program and a Loader download program are preset in a read-only or flash memory of a chip; the method comprises the following steps:
step 101, according to different Boot identifiers (Boot _ Flag) in a Boot bootstrap program, performing corresponding application downloading and updating processing;
it should be noted that, by separately setting the Boot program and the Loader downloading program, the functions of downloading and debugging can be specialized, which is convenient for the function implementation. Of course, the present disclosure can be implemented if a separate setting is not made.
This step is preceded by a step 100 of,
and step 100, presetting processing of downloading and updating the application corresponding to different starting identifiers in the Boot bootstrap program.
The method specifically comprises the following steps: the method is characterized in that the method is preset,
when the chip is powered on and started for the first time, the Boot _ Flag in the Boot bootstrap program is a first Flag value; when Boot _ Flag is the first Flag value, the application download update process is as follows: downloading the application update by a Loader downloading program;
when the application updating downloading is finished, the Boot _ Flag in the Boot bootstrap program is a value which is larger than the first Flag value and smaller than the second Flag value; when the Boot _ Flag is greater than the first Flag value and less than the second Flag value, the application download update process is as follows: entering updating and debugging of the application; entering update debugging of an application here refers to entering a stage of updating and debugging that allows a technician to perform the application. When the debugging work is not finished, the debugging stage still can be entered when the chip is started again after being closed. Unless the number of power-on resets is sufficient to adjust the current Boot Flag to change to the first Flag value.
When the updating and debugging of the application are finished, the Boot _ Flag in the Boot bootstrap program is larger than the second Flag value; when the Boot _ Flag is greater than the second Flag value, the application download update is processed as follows: and the Loader downloads the program identification to finish the update debugging of the application.
It should be noted that the first flag value and the second flag value may be set according to experience by those skilled in the art, and a general first flag value may be a value that identifies the start item, such as 0 or 1; the second indication value is set according to the frequency of application downloading and updating operations performed by technicians and a numerical value set for avoiding re-downloading and updating the application due to reset power-on. The updated debug state of the completed application may be obtained in an existing manner.
The method of the invention also comprises the following steps:
when the updating and debugging of the application are executed, any value which is larger than a first Flag value and smaller than a second Flag value is selected in advance as the current Boot _ Flag;
when the Loader downloading program needs to be re-entered, adjusting Boot _ Flag to a first Flag value through power-on reset;
and re-entering a Loader downloading program according to the adjusted Boot _ Flag as the first Flag value, erasing the original application in the chip, and re-downloading the application update.
It should be noted that, when determining the current Boot _ Flag, adjusting the Boot _ Flag to the first Flag value in a power-on reset manner may be performed in a manner familiar to those skilled in the art, for example, when setting the current Boot _ Flag to be a value obtained by adding 1 to the first Flag value, adjusting the current Boot _ Flag in a manner of adding 1 to the current Boot _ Flag by power-on reset, and when the Boot _ Flag is the second Flag value, assigning the current Boot _ Flag to be equal to the first Flag value; or setting the current Boot _ Flag to be a value obtained by subtracting 1 from the second Flag value, and adjusting the current Boot _ Flag in a manner of subtracting 1 from the current Boot _ Flag through power-on reset until the current Boot _ Flag is equal to the first Flag value; or, any value which is larger than the first Flag value and smaller than the second Flag value is adopted, and the Boot _ Flag is made to be equal to the first Flag value in a mode of accumulating or decrementing through power-on reset. When the Loader downloading program needs to be re-entered, the Loader downloading program means that the application debugging is already performed by a technician, and due to the application having a problem, a new application needs to be re-downloaded for re-debugging, at this time, the content of the original application in the chip needs to be erased, and the updated application needs to be re-downloaded.
And adding verification matching information in a Loader downloading program, wherein the method further comprises the following steps:
when updating and downloading the application, identifying an application updating data packet in the data packets received by the Loader downloading program;
matching the check information added in advance in the application updating data packet with the check matching information, and adding a check confirmation identifier to each data instruction contained in the data packet when the matching is completed; otherwise, refusing to download the data instruction of the application updated data packet;
and receiving the data instructions added with the verification confirmation identifications one by one until the downloading of all application updating data instructions in the data packet is completed.
It should be noted that, by adding the check matching information, downloading of the application update data is performed, so that malicious and destructive downloading can be avoided, the security of the downloading and updating process is ensured, and the security operation of the Boot bootstrap program and the Loader downloading program is guaranteed. According to the completion of the application updating and downloading, the invention sets the Boot _ Flag to be a value which is larger than the first Flag value and smaller than the second Flag value, and enters the application debugging through the change of the Boot _ Flag.
After the identification completes the update and debugging of the application, the method of the invention further comprises the following steps:
stopping or starting a Boot bootstrap program through an external instruction;
when the Boot bootstrap program is stopped, clearing Boot _ Flag to terminate the processing of application downloading and updating;
when the Boot bootstrap program is started, corresponding application downloading and updating processing is carried out according to different Boot identification Boot _ Flag in the Boot bootstrap program.
According to the invention, after the Boot bootstrap program and the Loader download program, corresponding application downloading and updating processing is carried out through different starting identifiers in the Boot bootstrap program, so that the problem that the application can not be downloaded and updated due to the existence of a patch interface or a communication interface when application debugging is carried out is avoided. The application downloading update is downloaded or debugged according to different starting identifiers by presetting different starting identifiers corresponding to each stage of the corresponding application downloading update processing. In addition, when the Loader downloading program needs to be re-entered, the Boot _ Flag is adjusted to the first Flag value through power-on reset; and the downloading of the application update is realized again. After the update and debugging of the application are finished through the identification, the Boot bootstrap program is stopped or started through the external instruction, and the adjustment of the chip which finishes the application debugging is avoided.
Fig. 2 is a block diagram of an apparatus for implementing application download update according to the present invention, as shown in fig. 2, including: the device comprises a presetting unit and a downloading updating unit; wherein,
the program setting unit is used for presetting a Boot bootstrap program and a Loader downloading program in a read-only or flash memory of the chip;
and the download updating unit is used for carrying out corresponding application download updating processing according to different Boot identifiers Boot _ Flag in the Boot bootstrap program.
The device of the invention also comprises an updating preset unit,
for the purpose of the pre-setting of the,
when the chip is powered on and started for the first time, the Boot _ Flag in the Boot bootstrap program is a first Flag value; when Boot _ Flag is the first Flag value, the application download update process is as follows: downloading the application update by a Loader downloading program;
when the application updating downloading is finished, the Boot _ Flag in the Boot bootstrap program is a value which is larger than the first Flag value and smaller than the second Flag value; when the Boot _ Flag is greater than the first Flag value and less than the second Flag value, the application download update process is as follows: entering updating and debugging of the application;
when the updating and debugging of the application are finished, Boot _ Flag in a Boot bootstrap program is larger than a second Flag value; when the Boot _ Flag is greater than the second Flag value, the application download update is processed as follows: and the Loader downloads the program identification to finish the update debugging of the application.
The device of the invention also comprises: the starting identification adjusting unit is used for selecting any value larger than the first Flag value and smaller than the second Flag value as the current Boot _ Flag in advance when the updating and debugging of the application are executed;
when the Loader downloading program needs to be re-entered, adjusting Boot _ Flag to a first Flag value through power-on reset;
and the downloading and updating unit is also used for erasing the original application in the chip and downloading the application update after receiving the adjusted Boot _ Flag as the first Flag value.
The device of the invention also comprises a checking unit which is used for adding checking matching information in the Loader downloading program,
when updating and downloading the application, identifying an application updating data packet in the data packets received by the Loader downloading program;
matching the check information added in advance in the application updating data packet with the check matching information, and adding a check confirmation identifier to each data instruction contained in the data packet when the matching is completed; otherwise, refusing to download the data instruction of the application updated data packet;
and receiving the data instructions added with the verification confirmation identifications one by one until the downloading of all application updating data instructions in the data packet is completed.
The device of the invention also comprises: the switch unit is used for stopping or starting a Boot bootstrap program through an external instruction after the update and debugging of the application are finished through the identification;
when the Boot bootstrap program is stopped, clearing Boot _ Flag to terminate the processing of application downloading and updating;
when the Boot bootstrap program is started, corresponding application downloading and updating processing is carried out according to different Boot identification Boot _ Flag in the Boot bootstrap program.
Although the embodiments disclosed in the present application are described above, the descriptions are only used for facilitating the understanding of the embodiments of the present application, and are not intended to limit the present application, such as the specific implementation methods in the embodiments of the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
Claims (10)
1. A method for realizing application download update is characterized in that a Boot bootstrap program and an update Loader download program are preset in a read-only or flash memory of a chip; the method comprises the following steps:
and carrying out corresponding application downloading and updating processing according to different Boot identifiers, namely Boot _ Flag, in the Boot bootstrap program.
2. The method of claim 1, further comprising, prior to the method:
presetting processing of application downloading and updating corresponding to different Boot _ flags in a Boot bootstrap program, which specifically comprises the following steps:
the method is characterized in that the method is preset,
when the chip is powered on and started for the first time, the Boot _ Flag in the Boot bootstrap program is a first Flag value; when Boot _ Flag is the first Flag value, the application download update process is as follows: downloading the application update by a Loader downloading program;
when the application updating downloading is finished, the Boot _ Flag in the Boot bootstrap program is a value which is larger than the first Flag value and smaller than the second Flag value; when the Boot _ Flag is greater than the first Flag value and less than the second Flag value, the application download update process is as follows: entering updating and debugging of the application;
when the updating and debugging of the application are finished, Boot _ Flag in a Boot bootstrap program is larger than a second Flag value; when the Boot _ Flag is greater than the second Flag value, the application download update is processed as follows: and the Loader downloads the program identification to finish the update debugging of the application.
3. The method according to claim 1 or 2, characterized in that the method further comprises:
when the updating and debugging of the application are executed, any value which is larger than a first Flag value and smaller than a second Flag value is selected in advance as the current Boot _ Flag;
when the Loader downloading program needs to be re-entered, adjusting Boot _ Flag to a first Flag value through power-on reset;
and re-entering a Loader downloading program according to the adjusted Boot _ Flag as the first Flag value, erasing the original application in the chip, and re-downloading the application update.
4. The method of claim 1 or 2, wherein the verification matching information is added in a Loader downloading program, and the method further comprises:
when updating and downloading the application, identifying an application updating data packet in the data packets received by the Loader downloading program;
matching the check information added in advance in the application updating data packet with the check matching information, and adding a check confirmation identifier to each data instruction contained in the data packet when the matching is completed; otherwise, refusing to download the data instruction of the application updated data packet;
and receiving the data instructions added with the verification confirmation identifications one by one until the downloading of all application updating data instructions in the data packet is completed.
5. The method of claim 1 or 2, wherein after identifying that the updated debugging of the application is complete, the method further comprises:
stopping or starting a Boot bootstrap program through an external instruction;
when the Boot bootstrap program is stopped, clearing Boot _ Flag to terminate the processing of application downloading and updating;
when the Boot bootstrap program is started, corresponding application downloading and updating processing is carried out according to different Boot identification Boot _ Flag in the Boot bootstrap program.
6. An apparatus for implementing application download updates, comprising: the device comprises a presetting unit and a downloading updating unit; wherein,
the device comprises a program setting unit, a starting unit and a loading unit, wherein the program setting unit is used for presetting a Boot (Boot) bootstrap program and an update (Loader) downloading program in a read-only or flash memory of a chip;
and the download updating unit is used for carrying out corresponding application download updating processing according to different Boot identifiers Boot _ Flag in the Boot bootstrap program.
7. The apparatus of claim 6, further comprising updating the preset unit,
for the purpose of the pre-setting of the,
when the chip is powered on and started for the first time, the Boot _ Flag in the Boot bootstrap program is a first Flag value; when Boot _ Flag is the first Flag value, the application download update process is as follows: downloading the application update by a Loader downloading program;
when the application updating downloading is finished, the Boot _ Flag in the Boot bootstrap program is a value which is larger than the first Flag value and smaller than the second Flag value; when the Boot _ Flag is greater than the first Flag value and less than the second Flag value, the application download update process is as follows: entering updating and debugging of the application;
when the updating and debugging of the application are finished, Boot _ Flag in a Boot bootstrap program is larger than a second Flag value; when the Boot _ Flag is greater than the second Flag value, the application download update is processed as follows: and the Loader downloads the program identification to finish the update debugging of the application.
8. The apparatus of claim 6 or 7, further comprising: the starting identification adjusting unit is used for selecting any value larger than the first Flag value and smaller than the second Flag value as the current Boot _ Flag in advance when the updating and debugging of the application are executed;
when the Loader downloading program needs to be re-entered, adjusting Boot _ Flag to a first Flag value through power-on reset;
and the download updating unit is further configured to erase the original application in the chip and download the application update after receiving that the adjusted Boot _ Flag is the first Flag value.
9. The apparatus according to claim 6 or 7, further comprising a verification unit for adding verification matching information in Loader download program,
when updating and downloading the application, identifying an application updating data packet in the data packets received by the Loader downloading program;
matching the check information added in advance in the application updating data packet with the check matching information, and adding a check confirmation identifier to each data instruction contained in the data packet when the matching is completed; otherwise, refusing to download the data instruction of the application updated data packet;
and receiving the data instructions added with the verification confirmation identifications one by one until the downloading of all application updating data instructions in the data packet is completed.
10. The device according to claim 6 or 7, further comprising a switch unit, configured to stop or start the Boot bootstrap program through an external instruction after the identifier completes the update and debugging of the application;
when the Boot bootstrap program is stopped, clearing Boot _ Flag to terminate the processing of application downloading and updating;
when the Boot bootstrap program is started, corresponding application downloading and updating processing is carried out according to different Boot identification Boot _ Flag in the Boot bootstrap program.
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| CN108347456B (en) * | 2017-01-22 | 2021-09-10 | 腾讯科技（北京）有限公司 | Application program downloading method and device |
| CN110837389A (en) * | 2019-11-01 | 2020-02-25 | 北京云迹科技有限公司 | Equipment upgrading method and device, Internet of things equipment and storage medium |
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Application publication date: 20150408 |