WO2022143295A1

WO2022143295A1 - Method for upgrading firmware, and related device

Info

Publication number: WO2022143295A1
Application number: PCT/CN2021/140018
Authority: WO
Inventors: 赵伟亮; 陈龙; 肖羽; 刘治文; 周灵
Original assignee: 展讯通信（上海）有限公司
Priority date: 2021-01-04
Filing date: 2021-12-21
Publication date: 2022-07-07
Also published as: CN112799696B; CN112799696A

Abstract

The present application relates to the field of Bluetooth technology, and, in particular, relates to a method for upgrading firmware, and a related device. The method comprises: determining a first storage space according to description information about first firmware; performing an erase operation on the first storage space in a first idle time period during Bluetooth transmission; and writing an update packet of the first firmware into the first storage space in a second idle time period during Bluetooth transmission, the update packet of the first firmware coming from a first Bluetooth device. According to the solution in the embodiments of the present invention, a firmware upgrade code can be stored in a preset memory so as to conserve system RAM resources; performing an erase operation on a storage space in advance can shorten the transmission time for a firmware data packet; furthermore, an erase operation and write operation are performed in idle time periods during Bluetooth transmission, which can reduce Bluetooth power consumption, while also improving the stability of a Bluetooth connection between devices.

Description

Firmware upgrade method and related equipment

This application claims the priority of the Chinese patent application with the application number 202110004296.4 and the application name "firmware upgrade method and related equipment", which was submitted to the Chinese Patent Office on January 4, 2021, the entire contents of which are incorporated into this application by reference.

technical field

The present application relates to the field of Bluetooth technology, and in particular, to a firmware upgrade method and related equipment.

Background technique

Bluetooth OTA (Over-the-Air Technology) is a technology that uses Bluetooth to upgrade the firmware in the device. At present, the process of upgrading the firmware in the device based on Bluetooth mainly includes: starting the OTA code from the Bluetooth slave device, and obtaining the data package of the new version of the firmware from the Bluetooth master device. Among them, the OTA code in the Bluetooth slave device is usually integrated in RAM (Random Access Memory, random access memory), which will occupy more RAM resources in the system. Moreover, after the Bluetooth slave device receives the firmware data packet sent by the Bluetooth master device, the firmware data is written into the storage space for storing the firmware data packet in the manner of erasing and writing. This method not only takes a long time, but also often needs to turn off the interruption of Bluetooth transmission and reception, which easily causes Bluetooth disconnection and affects the stability of the connection between the Bluetooth master device and the Bluetooth slave device.

SUMMARY OF THE INVENTION

In view of this, the embodiment of the present invention provides a firmware upgrade method and related equipment, the firmware upgrade code in the first firmware can be stored in a preset memory to save system RAM resources; this solution is used for storing firmware data in advance. The storage space of the package is erased, and the write operation can be performed directly after the firmware data packet is obtained, saving the transmission time of the firmware data packet; further, the above erase operation and write operation are performed during the idle time of Bluetooth transmission, which not only can Reduce Bluetooth power consumption, and do not need to close the Bluetooth transceiver interrupt, improve the stability of the Bluetooth connection between devices.

In a first aspect, an embodiment of the present invention provides a firmware upgrade method, including: determining a first storage space according to description information of a first firmware, wherein part or all of the code of the first firmware is stored in a preset memory, The first storage space is located in the preset memory; in the first idle time of Bluetooth transmission, an erase operation is performed on the first storage space; in the second idle time of Bluetooth transmission, the update package of the first firmware is written into The first storage space, wherein the update package is from a first Bluetooth device. Optionally, the preset memory may be a flash memory (Flash) memory. In one example, the preset memory may be a NOR Flash memory. Optionally, the first idle time may include a plurality of sub-idle times, and an erase operation is performed in each of the sub-idle times. Optionally, the second idle time may include multiple sub-idle times, and one write operation is performed in each of the sub-idle times. Optionally, the above-mentioned sub-idle time may all refer to the idle time between two adjacent nodes where the transmission and reception are interrupted.

The description information of the first firmware is sent to the second Bluetooth device when the first Bluetooth device determines to upgrade the first firmware in the second Bluetooth device.

Optionally, the description information of the first firmware includes: the size of the first firmware, the starting address of the first storage space, and the running address of the code. In some embodiments, the description information of the first firmware includes the size of the first firmware. The second Bluetooth device may autonomously determine the first storage space according to the size of the first firmware. Optionally, the description information of the first firmware may include a size of the first firmware and an address of the first storage space, and the address may be a start address of the first storage space. The second Bluetooth device may dynamically determine the first storage space according to the size of the first firmware and the address of the first storage space. Of course, the first storage space may also be a fixed space in the preset memory. The running address of the code is used to determine the running address of the updated first firmware.

Optionally, performing an erasing operation on the first storage space during the first idle time of Bluetooth transmission includes: performing M erasing operations on the first storage space according to the size of the first storage space. , each erasing operation is performed in the idle time of Bluetooth transmission, and the space erased by each erasing operation is an integer multiple of the unit space, M≥1; If the remaining space to be erased is smaller than the size of one unit space, the space to be erased is supplemented as one unit space and the Mth erasing operation is performed. The method of supplementing the space to be erased into a unit space may be extended and supplemented according to the physical characteristics of the corresponding memory.

Optionally, performing the Qth erasing operation in the M times on the first storage space includes: determining an erasing time required for the Qth erasing operation; determining from the current time to the next transmission and reception interrupt node the first time; if the difference between the first time and the erasing time is within the first value range, the Qth erasing operation is performed at the first time; otherwise, the adjustment of the Bluetooth connection parameters is triggered.

Optionally, the method further includes: after the Bluetooth connection parameter is adjusted, when it is determined that the difference between the second time from the current time to the next sending and receiving interrupted node and the erasing time is within the first value range, when the The Qth erasing operation is performed at the second time.

Optionally, the update package of the first firmware is divided into multiple sub-update packages, and the first sub-update package is any sub-update package of the first firmware; wherein, the first sub-update package is written into the first sub-update package. a storage space, including: determining the writing time required for writing the first sub-update package into the first storage space; determining a third time from the current time to the next node for sending and receiving interrupts; if the third time If the difference from the writing time is within the second value range, the first sub-update package is written into the first storage space at the third time; otherwise, the adjustment of the Bluetooth connection parameters is triggered.

Optionally, the method further includes: after the Bluetooth connection parameter is adjusted, when it is determined that the difference between the fourth time from the current time to the next sending and receiving interrupt node and the writing time is within the second value range, in the second value range. The first sub-update package is written into the first storage space at the fourth time.

Optionally, triggering the adjustment of the Bluetooth connection parameters includes: if the difference between the third time and the writing time is less than the minimum boundary value of the second value range, determining that the subsequent N transmission and reception interrupt nodes correspond to Whether the difference between the idle time and the write time is less than the minimum boundary value; if so, triggering an adjustment to increase the Bluetooth connection parameters.

Optionally, after the update package of the first firmware is written into the first storage space, the method further includes: when the first firmware is restarted, copying the update package code of the first firmware to the run address of the code and run it.

In a second aspect, an embodiment of the present invention provides a firmware upgrade device, including: a preset storage module for storing part or all of the code of the first firmware, and providing a first storage space; wherein, the first firmware contains The corresponding firmware upgrade code includes the following functional modules: a determination module, used for determining the first storage space according to the description information of the first firmware; an erasing module, used for the first idle time of Bluetooth transmission, for the first storage space. The space performs an erasing operation; and is used for writing the update package of the first firmware into the first storage space during the second idle time of Bluetooth transmission; the Bluetooth transceiver module is used for receiving the update package from the first Bluetooth device.

In a third aspect, an embodiment of the present invention provides a Bluetooth chip, including: a processor configured to execute computer program instructions stored in a memory, wherein, when the computer program instructions are executed by the processor, trigger the The Bluetooth chip executes the method of the first aspect or any one of the embodiments of the first aspect.

In a fourth aspect, an embodiment of the present invention provides an electronic device, including: at least one processor; and at least one memory communicatively connected to the processor, wherein: the memory stores a memory executable that can be executed by the processor Program instructions, where the processor invokes the program instructions to execute the first aspect or any of the embodiments of the first aspect.

In a fifth aspect, an embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium includes a stored program, wherein when the program runs, a device on which the computer-readable storage medium is located is controlled to execute the above-mentioned The first aspect or the manner of any embodiment of the first aspect.

In the solution of the embodiment of the present invention, part or all of the OTA code of the first firmware may be stored in a preset memory, and the preset memory does not need to be a RAM memory, thereby saving system RAM resources; After the firmware data packet is acquired, the write operation can be performed directly, which saves the transmission time of the firmware data packet; further, the above-mentioned erase operation and write operation are performed in the idle time of Bluetooth transmission, which can not only reduce the Bluetooth power consumption, and there is no need to turn off the Bluetooth transceiver interrupt, data transmission and reception between devices can be performed normally, and the stability of the Bluetooth connection between devices is improved.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of a Bluetooth system provided by an embodiment of the present invention;

2 is a schematic diagram of a time node of Bluetooth transmission provided by an embodiment of the present invention;

3 is a flowchart of a firmware upgrade method provided by an embodiment of the present invention;

4-a is a flowchart of another firmware upgrade method provided by an embodiment of the present invention;

Fig. 4-b is a kind of flow chart of performing erase operation based on Fig. 4-a provided;

Fig. 4-c is a kind of flow chart of performing write operation provided based on Fig. 4-a;

5 is a schematic structural diagram of a firmware upgrade apparatus provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Detailed ways

In order to better understand the technical solutions of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

It should be clear that the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. As used in the embodiments of this application and the appended claims, the singular forms "a," "the," and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise.

FIG. 1 is a schematic structural diagram of a Bluetooth system according to an embodiment of the present invention. As shown in FIG. 1 , the system includes: a first Bluetooth device and a second Bluetooth device. Wherein, the first Bluetooth device can be used as a Bluetooth master device, and the second Bluetooth device can be used as a Bluetooth slave device. The first Bluetooth device establishes a Bluetooth connection with the second Bluetooth device. The first Bluetooth device may acquire a new version of the first firmware. The second Bluetooth device is provided with an older version of the first firmware. When the first Bluetooth device determines that the first firmware of the second Bluetooth device needs to be upgraded, the first Bluetooth device sends a data packet related to the first firmware to the second Bluetooth device. As shown in Figure 2, in the Bluetooth communication mechanism, the Bluetooth device determines the transmission and reception interruption node (corresponding to the interruption node in Figure 2) based on the Bluetooth connection parameters, and the time of two adjacent transmission and reception interruption nodes can be divided into working time and free time. Among them, the working time can be further divided into the time used for hardware startup, code calling, etc., and the data sending and receiving time. Optionally, for this embodiment of the present invention, the data sending and receiving time during working hours is focused on. During the data sending and receiving time, the first Bluetooth device and the second Bluetooth device can perform data interaction. For example, the first bluetooth device and the second bluetooth device can send and receive valid data during the data sending and receiving time; if there is no valid data between the first bluetooth device and the second bluetooth device, they can send and receive heartbeat data. During idle time, the first Bluetooth device and the second Bluetooth device enter a sleep state. As can be seen from FIG. 2 , the time lengths occupied by the working time between two adjacent sending and receiving interrupt nodes are different, and the time lengths occupied by the corresponding idle time are also different.

Both the first Bluetooth device and the second Bluetooth device may be mobile phones, tablet computers, cameras, wearable devices, vehicle-mounted devices, building devices, smart home devices, augmented reality (AR)/virtual reality (VR) ) devices and other electronic devices, the embodiments of the present application do not impose any restrictions on the specific types of electronic devices.

FIG. 3 is a flowchart of a firmware upgrade method provided by an embodiment of the present invention. The executing subject of the method shown in FIG. 3 may be the above-mentioned second Bluetooth device. The firmware upgrade method can be applied to a low-power Bluetooth transmission scheme or a traditional Bluetooth transmission scheme. Optionally, part or all of the code of the first firmware in this embodiment of the present invention may be stored in a preset memory. Correspondingly, part or all of the firmware upgrade code included in the first firmware is stored in the preset memory. For example, the firmware upgrade code includes code for writing the update package of the first firmware into the first storage space, and this part of the code may be stored in RAM or ROM memory, and other firmware upgrade codes are stored in a preset memory. Of course, the part of the firmware upgrade code placed in the preset memory, the RAM or the ROM memory can be adjusted according to actual needs, and examples will not be given here. The preset memory may be a Flash memory. In one example, the preset memory may be a NOR Flash memory. The processing steps of the method include:

101. Determine a first storage space according to the description information of the first firmware. The first firmware is firmware that needs to be upgraded and updated in the second Bluetooth device. The first firmware may be any firmware in the second Bluetooth device. The manner in which the second Bluetooth device acquires the description information of the first firmware may be acquisition from a firmware server, acquisition according to user input, or acquisition from the first Bluetooth device. Optionally, the manner in which the second bluetooth device obtains the description information of the first firmware from the first bluetooth device may include: after the second bluetooth device establishes a connection with the first bluetooth device, the first bluetooth device may read the information in the second bluetooth device. Information such as the version of the existing first firmware and/or the version of the firmware bin file. The first Bluetooth device determines that the existing first firmware in the second Bluetooth device needs to be upgraded according to the read information such as the version of the first firmware and/or the version of the firmware bin file. At this time, the first Bluetooth device may send the description information of the first firmware to the second Bluetooth device. It should be noted that the description information of the first firmware in step 101 is the description information of the new version of the first firmware. Optionally, the description information of the first firmware may include: the size of the first firmware, the starting address of the first storage space, and the running address of the code. In some embodiments, the description information of the first firmware includes the size of the first firmware. The second Bluetooth device may autonomously determine the first storage space according to the size of the first firmware. Optionally, the description information of the first firmware may include a size of the first firmware and an address of the first storage space, and the address may be a start address of the first storage space. The second Bluetooth device may dynamically determine the first storage space according to the size of the first firmware and the address of the first storage space. Of course, the first storage space may also be a fixed space in the preset memory. The running address of the code is used to determine the running address of the updated first firmware.

After the second Bluetooth device determines to upgrade and update the first firmware, the first storage space may be determined according to the description information of the first firmware. Optionally, the second Bluetooth device may determine the first storage space in a preset memory, such as the above-mentioned Flash memory. The first storage space is used to store the updated package of the upgraded first firmware.

102. Perform an erasing operation on the first storage space during the first idle time of the Bluetooth transmission. Different from the related art, the firmware data is written to the storage space while erasing. In this embodiment of the present invention, after the first storage space is determined, an erasing operation is performed on the first storage space during the first idle time of Bluetooth transmission. Wherein, in the first idle time of Bluetooth transmission, performing the erasing operation on the first storage space may include: according to the size of the first storage space, performing M erasing operations on the first storage space, each erasing operation All are executed in the idle time of Bluetooth transmission, and the space erased by each erase operation is an integer multiple of the unit space, M≥1.

Wherein, if the remaining space to be erased after the M-1th erasing operation is performed is less than the size of one unit space, the space to be erased is supplemented as one unit space and the Mth erasing operation is performed. The method of supplementing the space to be erased into a unit space may be extended and supplemented according to the physical characteristics of the corresponding memory.

In some embodiments, M is equal to 1 if the first storage space is less than or equal to one unit space. That is, an erasing operation is performed on the first storage space. Wherein, if the first storage space is less than one unit space, the first storage space needs to be supplemented into one unit space before performing the erasing operation. The erasing time of each erasing operation corresponds to a unit time, and the unit time is the time required to erase a unit space. Wherein, the unit time is determined based on the physical characteristics of the preset memory. For example, when the preset memory is a Flash memory, the unit time is determined based on the physical characteristics of the Flash memory.

In some embodiments, if the first storage space is larger than one unit space, M is larger than 1, that is, at least two erase operations are performed on the first storage space. The erasing space of each erasing operation is an integer multiple of the unit space. The erasing time of each erasing operation is determined according to the number of unit spaces to be erased. For example, the Qth erasing operation corresponds to one unit space, and the Qth erasing operation corresponds to one unit time. If the Qth erasing operation corresponds to two unit spaces, the Qth erasing operation corresponds to two unit times. Wherein, for the last erasing operation, if there is less than one unit space, the first storage space needs to be supplemented into one unit space before performing the erasing operation.

In some embodiments, the above-mentioned unit space may include a plurality of unit spaces of different sizes. When performing the Qth erasing operation, first determine whether the remaining space to be erased is greater than or equal to the first unit space, and if the space to be erased is greater than or equal to the first unit space, the Qth erasing a first unit space, the first unit space is the unit space corresponding to the Q-1th erasing operation. If the remaining space to be erased is smaller than the first unit space, further determine whether the remaining space to be erased is greater than or equal to the second unit space, the second unit space is smaller than the first unit space, ... until the smallest unit space is compared . If the remaining space to be erased is less than or equal to the smallest unit space, the Qth erasing operation is the last erasing operation. Optionally, the unit time corresponding to each unit space with different sizes may be the same or different. In the embodiment of the present invention, the unit time corresponding to each unit space with different sizes is the same. Therefore, when erasing the first storage space, first erase based on the larger unit space, and if the larger unit space is insufficient, then erase according to the smaller unit space, thereby improving the erasing efficiency and saving the erasing efficiency. except time. For the last erase operation, if the remaining space to be erased corresponding to the last erase operation is less than one unit space, it will be supplemented as one unit space. Optionally, it can be supplemented based on the smallest unit space.

103. Write the update package of the first firmware into the first storage space during the second idle time of the Bluetooth transmission, where the update package of the first firmware comes from the first Bluetooth device.

In the embodiment of the present invention, after the second bluetooth device has finished erasing the first storage space, it can notify the first bluetooth device to send an update package of the first firmware at a later data sending and receiving time. The first Bluetooth device sends an update package of the first firmware to the second Bluetooth device according to the notification information. Optionally, the update package of the first firmware may be divided into multiple sub-update packages. Each sub-update package may be sent to the second Bluetooth device respectively. For example, the first Bluetooth device sends a sub-update packet to the second Bluetooth device each time. After the second Bluetooth device writes the one sub-update package into the first storage space, it receives and writes the next sub-update package. Of course, between the first Bluetooth device and the second Bluetooth device, the number of sending and receiving sub-update packets and the writing time can also be adjusted according to actual needs. Wherein, for the convenience of description, any one of the sub-update packages of the first firmware is referred to as the first sub-update package.

After receiving the first sub-update package, the second Bluetooth device writes the first sub-update package into the first storage space during an idle time of Bluetooth transmission. The idle time may be the idle time before the next transceiving interrupt node after the second Bluetooth device receives the first sub-update packet. For example, if the current time is t ₃ and the arrival time of the next node that interrupts transmission and reception is t ₄ , the second Bluetooth device can write the first sub-update packet into the first storage space during the idle time from t ₄ to t ₃ .

In the firmware upgrade method of the embodiment of the present invention, the OTA code can be partially or completely stored in a preset memory, and the preset memory does not need to be a RAM memory, thereby saving system RAM resources; The space performs the erasing operation, and the writing operation can be directly performed after the firmware data packet is obtained, saving the transmission time of the firmware data packet; further, the above-mentioned erasing operation and writing operation are performed in the idle time of Bluetooth transmission, which can not only reduce the Bluetooth function. In addition, there is no need to turn off the interruption of Bluetooth transmission and reception, and data transmission and reception between Bluetooth devices can be performed normally, which improves the stability of Bluetooth connection between devices.

FIG. 4-a is a flowchart of another firmware upgrade method provided by an embodiment of the present invention. As shown in Figure 4-a, the processing steps of the method include:

201. When the first Bluetooth device determines that the first firmware in the second Bluetooth device needs to be upgraded, it sends description information of the first firmware to the second Bluetooth device. The description information of the first firmware includes the size of the first firmware, the start address of the first storage space, and the running address of the code. The size of the first firmware is the size of the new version of the first firmware.

202. The second Bluetooth device determines the first storage space according to the size of the first firmware and the start address of the first storage space. Optionally, the second Bluetooth device may determine the first storage space in NOR FLASH.

203. The second Bluetooth device performs M times of erasing operations on the first storage space according to the size of the first storage space, each erasing operation is performed during the idle time of Bluetooth transmission, and the space erased by each erasing operation is is an integer multiple of the unit space, M≥1.

If the remaining space to be erased after the M-1 th erasing operation is performed is smaller than the size of one unit space, the to-be-erased space is supplemented into one unit space and the Mth erasing operation is performed.

In this embodiment of the present invention, the Qth erasing operation in M times is performed on the first storage space, as shown in FIG. 4-b, which may specifically include:

2031. Determine the erasing time required for the Qth erasing operation. Q takes the value of 1, 2...M. The erasing time is an integer multiple of the unit time, and the unit time is determined according to the physical characteristics of the preset storage space. In some embodiments, the first storage space supports erase operations in units of the first unit space and the second unit space. The first unit space is larger than the second unit space. If the remaining space to be erased corresponding to the Qth erasing operation is greater than or equal to one first unit space, then the Qth erasing a first unit space, and the erasing time corresponds to the unit time required for one first unit space. If the remaining space to be erased corresponding to the Qth erasing operation is less than a first unit space and greater than or equal to a second unit space, then the Qth erasing a second unit space, the erasing time corresponds to a second unit Unit time required for space. If the remaining space to be erased corresponding to the Qth erasing operation is less than a second unit space, then the Qth erasing operation is the last erasing operation, then the remaining space to be erased is supplemented into a second unit space and The erasing operation is performed, and the erasing time corresponds to the unit time required for a second unit space. Optionally, the unit time required by the first unit space and the second unit space may be the same or different, which may be determined according to the physical characteristics of the Flash. In Flash memory, for example, erase operations are supported in units of 64K and 4K. It is assumed that the size of the first storage space is 70k, which includes one 64k space, one 4k space and one 2k space remaining. The unit erasing time corresponding to a 64k space is a, the unit erasing time corresponding to a 4k space is b, and the remaining 2k space is supplemented as a 4k space. Then the actual erasing space is 64k+4k+4k, and the erasing time is a+2b. The values of a and b can be determined according to the physical properties of the Flash. Optionally, a and b can have the same value. Based on the above manner, the erasing time required for the first storage space can be reduced as much as possible.

2032. Determine the first time from the current time to the next node that interrupts transmission and reception. The first time corresponds to an idle time of Bluetooth transmission.

2033. Whether the difference between the first time and the erasing time is within the first value range, if yes, go to step 2034, and if not, go to step 2035. The difference between the first time and the erasing time not in the first value range includes: the difference between the first time minus the erasing time is less than the minimum boundary value of the first value range, or, the first time minus the erasing time The difference divided by time is greater than the maximum boundary value of the first value range. The value range defined by the minimum boundary value and the maximum boundary value is the first value range.

2034. Perform the Qth erasing operation at the first time.

2035, triggering the adjustment of the Bluetooth connection parameters. Wherein, triggering the adjustment of the Bluetooth connection parameters may be adjusting the Bluetooth connection parameters through the underlying hardware. Optionally, the first firmware in the second Bluetooth device sends first information for adjusting Bluetooth connection parameters to the underlying hardware. Optionally, the first firmware here may be an upgrade program of the first firmware. The underlying hardware in the second Bluetooth device adjusts the Bluetooth connection parameters according to the first information, and after confirmation by the underlying hardware of the first Bluetooth device, the underlying hardware of the second Bluetooth device sends the adjusted Bluetooth connection parameters to the first Bluetooth device. 2. The first firmware of the upper layer of the Bluetooth device.

If the difference between the first time and the erasing time is less than the minimum boundary value of the first value range, the Bluetooth connection parameter is increased. If the difference between the first time and the erasing time is greater than the maximum boundary value of the first value range, the Bluetooth connection parameter is reduced.

2036, after the Bluetooth connection parameters are adjusted, when it is determined that the difference between the second time from the current time to the next sending and receiving interrupt node and the erasing time is within the first value range, perform the Qth erasing at the second time. remove operation.

After the above M times of erasing operations, after erasing the first storage space, the second Bluetooth device may notify the first Bluetooth device to send an update package of the first firmware. Optionally, the second Bluetooth device may adjust the Bluetooth connection parameters again before notifying the first Bluetooth device to send the update package of the first firmware, and this adjustment may be to reduce the Bluetooth connection parameters to reduce two adjacent nodes that are interrupted in sending and receiving. interval, so that the corresponding idle time for subsequent writes more closely matches the size of the update package. Of course, the second Bluetooth device may also notify the first Bluetooth device to send an update package of the first firmware without adjusting the Bluetooth connection parameters after erasing the first storage space.

204. The second Bluetooth device respectively receives each sub-update package of the first firmware, and respectively writes each sub-update package into the first storage space during the idle time of Bluetooth transmission. Wherein, in the way of writing the first sub-update package into the first storage space, the first sub-update package is any one of each sub-update package, as shown in Figure 4-c, including:

2041. The second Bluetooth device determines the writing time required for writing the first sub-update package into the first storage space.

2042. The second Bluetooth device determines a third time (corresponding to T3 in the figure) from the current time to the next node that interrupts transmission and reception.

2043 , the second Bluetooth device determines whether the difference between the third time and the writing time is within the second value range, and if so, executes step 2044 ; if not, executes step 2045 .

Wherein, the difference between the third time and the writing time not in the second value range includes: the difference between the third time minus the writing time is less than the minimum boundary value of the second value range, or, the third time minus the writing time The difference of the incoming time is greater than the maximum boundary value of the second value range. The value range defined by the minimum boundary value and the maximum boundary value here is the second value range.

For example, if the current time is t ₃ , and the arrival time of the next node that interrupts transmission and reception is t ₄ , the third time is t ₄ -t ₃ . If the difference between t ₄ -t ₃ -writing time is within the second value range, it means that the writing operation to the first sub-update packet can be performed efficiently within the third time. However, if the difference between t ₄ -t ₃ - writing time is greater than the maximum boundary value of the second value range, it means that the idle time between the current time and the next sending and receiving interrupt node is much longer than the writing time, which will cause unnecessary Therefore, the idle time can be reduced by adjusting the Bluetooth connection parameters to improve the transmission efficiency of the first firmware. If the difference between t ₄ -t ₃ - writing time is less than the minimum boundary value of the second value range, it means that the idle time under the current Bluetooth connection parameters is difficult to complete the writing operation, and it is necessary to increase the idle time by adjusting the Bluetooth connection parameters. Large to improve the stability of the first firmware transfer.

2044. The second Bluetooth device writes the first sub-update package into the first storage space at the third time.

2045, the second Bluetooth device triggers the adjustment of the Bluetooth connection parameters. Wherein, when the difference between the third time and the writing time is less than the minimum boundary value of the second value range, the second Bluetooth device determines that the idle time corresponding to the subsequent N transceiving interrupt nodes is the same as the writing time. Whether the difference between the incoming times is smaller than the minimum boundary value of the second value range, and if so, triggering an adjustment to increase the Bluetooth connection parameter.

In the embodiment of the present invention, if the difference between the third time and the writing time is smaller than the minimum boundary value of the second value range, it may be caused by the code running and data sending and receiving time taking up a lot. In this way, it can continue to determine whether the idle time corresponding to the subsequent N transceiver interrupt nodes can meet the above difference requirements. If the difference is within the second value range, the first sub-update package is written into the first storage space during the idle time. Wherein, N can be set according to actual needs, for example, can be set to 3, 4, 5 or other possible numbers. x is a value in N. If the difference between the idle time and the write time corresponding to the subsequent N transceiver interrupt nodes is smaller than the minimum boundary value of the second value range, the corresponding idle time can meet the write requirement by adjusting the Bluetooth connection parameters. In this way, the adjustment of the Bluetooth connection parameters can be reduced, and the stability of the Bluetooth connection can be ensured.

2046. After the Bluetooth connection parameters are adjusted, it is determined that the difference between the fourth time from the current time to the next sending and receiving interrupt node and the writing time is within the second value range, and the fourth time The first sub-update package is written into the first storage space.

In this embodiment, the above-mentioned first sub-update package is any sub-update package of the new version firmware. The manner in which each sub-update package is written into the first storage space is the same, and details are not repeated here.

After the second Bluetooth device writes all the sub-update packages of the first firmware into the first storage space, the method further includes: when the first firmware is restarted, updating the first firmware The package code is copied to the running address of the code and run.

In the embodiment of the present invention, according to the size of the new version of the firmware, an erasing operation can be performed on the storage space in advance, thereby reducing the erasing time during the firmware upgrade process, and increasing the stability of the system and the Bluetooth connection. Further, the firmware upgrade code of the embodiment of the present invention can be directly stored in NOR FLASH to run, saving system RAM resources. Further, this solution performs the erasing operation of the storage space and the writing operation of the firmware upgrade data in the idle time of the Bluetooth transmission, which can improve the utilization rate of the processor and speed up the firmware upgrade speed. In addition, the solution can dynamically adjust the Bluetooth connection parameters according to the time required to perform the erase operation and the time required to perform the write operation, which can improve the efficiency and stability of the transmission of the first firmware update packet. Further, the estimated upgrade process does not need to turn off the interruption of Bluetooth transmission, and can normally send and receive Bluetooth data to ensure the stability of the Bluetooth connection between devices. Of course, the flash suspend/resume mechanism can also be supported during the firmware upgrade phase, and can also be interrupted by other interrupts.

Corresponding to the above firmware upgrade method, an embodiment of the present invention further provides a firmware upgrade apparatus. Those skilled in the art can understand that these firmware upgrade apparatuses can be configured by using commercially available hardware components through the steps taught in this solution.

As shown in FIG. 5 , the firmware upgrade device includes: a preset storage module, the preset storage module is used to store part or all of the codes of the first firmware and provide a first storage space; as shown in FIG. 5 , the first firmware The corresponding firmware upgrade code includes the following functional modules:

The determining module 301 is used to determine the first storage space according to the description information of the first firmware; the erasing and writing module 302 is used to perform an erasing operation on the first storage space during the first idle time of Bluetooth transmission; and In the second idle time of the Bluetooth transmission, the update package of the first firmware is written into the first storage space; the Bluetooth transceiver module 303 is configured to receive the update package of the first firmware from the first Bluetooth device.

The firmware upgrade apparatus in this embodiment of the present invention may execute the methods of the embodiments shown in FIG. 3 to FIG. 4 . For parts that are not described in detail in this embodiment, reference may be made to the relevant descriptions of the embodiments shown in FIG. 3 to FIG. 4 . For the execution process and technical effects of the technical solution, refer to the descriptions in the embodiments shown in FIG. 3 to FIG. 4 , which will not be repeated here.

It should be understood that the division of each module of the firmware upgrade apparatus shown in FIG. 5 is only a division of logical functions, and may be fully or partially integrated into a physical entity in actual implementation, or may be physically separated. And these modules can all be implemented in the form of software calling through processing elements; they can also all be implemented in hardware; some modules can also be implemented in the form of software calling through processing elements, and some modules can be implemented in hardware. For example, the erasing and writing module may be a separately established processing element, or may be integrated into a certain chip of an electronic device. The implementation of other modules is similar. In addition, all or part of these modules can be integrated together, and can also be implemented independently. In the implementation process, each step of the above-mentioned method or each of the above-mentioned modules can be completed by an integrated logic circuit of hardware in the processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more specific integrated circuits (Application Specific Integrated Circuit; hereinafter referred to as: ASIC), or, one or more microprocessors Digital Singnal Processor (hereinafter referred to as: DSP), or, one or more Field Programmable Gate Array (Field Programmable Gate Array; hereinafter referred to as: FPGA), etc. For another example, these modules can be integrated together and implemented in the form of a system-on-a-chip (System-On-a-Chip; hereinafter referred to as: SOC).

An embodiment of the present invention further provides a Bluetooth chip, including: a processor configured to execute computer program instructions stored in a memory, wherein when the computer program instructions are executed by the processor, the Bluetooth chip is triggered to execute The above firmware upgrade method. Optionally, the memory may include a Flash memory, where the Flash memory is used to store part or all of the codes of the first firmware. In one example, the Flash memory may be NOR Flash memory.

FIG. 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention. The electronic device shown in FIG. 6 is only an example, and should not impose any limitation on the function and scope of use of the embodiments of the present specification. As shown in Figure 6, the electronic device takes the form of a general-purpose computing device. Components of an electronic device may include, but are not limited to, one or more processors 410 , a communication interface 420 , a memory 430 , a communication bus 440 connecting various system components including memory 430 , communication interface 420 and processor 410 . The above-mentioned communication interface 420 can be connected with other electronic devices or other components, for example, the communication interface 420 can communicate with other Bluetooth devices.

Specifically, in an embodiment of the present application, the processor of the electronic device may be an on-chip device SOC, and the processor may include a central processing unit (Central Processing Unit, CPU), and may further include other types of processors.

Specifically, in an embodiment of the present application, the involved processor may include, for example, a CPU, a DSP, a microcontroller, or a digital signal processor, and may also include a GPU, an embedded Neural-network Process Units (NPU, NPU) ) and an image signal processor (Image Signal Processing, ISP), the processor may also include necessary hardware accelerators or logic processing hardware circuits, such as ASICs, or one or more integrated circuits for controlling the execution of programs in the technical solution of the present application Wait. Furthermore, the processor may have the function of operating one or more software programs, which may be stored in a storage medium.

Communication bus 440 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor, or a local bus using any of a variety of bus structures. For example, these architectures include, but are not limited to, Industry Standard Architecture (hereinafter referred to as: ISA) bus, Micro Channel Architecture (hereinafter referred to as: MAC) bus, enhanced ISA bus, video electronics Standards Association (Video Electronics Standards Association; hereinafter referred to as: VESA) local bus and Peripheral Component Interconnection (Peripheral Component Interconnection; hereinafter referred to as: PCI) bus.

Electronic devices typically include various computer system readable media. These media can be any available media that can be accessed by the electronic device, including both volatile and nonvolatile media, removable and non-removable media.

The memory 430 may include a computer system readable medium in the form of volatile memory, such as random access memory (Random Access Memory; hereinafter referred to as: RAM) and/or cache memory. The electronic device may further include other removable/non-removable, volatile/non-volatile computer system storage media. Optionally, the memory 430 may include a Flash memory, where the Flash memory is used to store part or all of the codes of the firmware. Wherein, part or all of the firmware upgrade code in the firmware code is stored in the flash memory. When the firmware upgrade code is called by the processor 410, the firmware upgrade method of each embodiment of this specification is executed. Optionally, the memory 430 may include a RAM memory, and the RAM memory may be used to cooperate with the Flash memory to execute the firmware upgrade method of the embodiment of the present invention. For example, when a data packet of the first firmware sent by the first Bluetooth device is received through the communication interface 420, the data packet may be buffered in the RAM, and then written into the Flash memory from the RAM.

An embodiment of the present invention provides a computer-readable storage medium, where the computer-readable storage medium stores computer instructions, and the computer instructions cause the computer to execute the methods provided by the embodiments shown in FIGS. 3 to 4 of this specification.

The aforementioned computer-readable storage media may employ any combination of one or more computer-readable media. The computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus or device, or a combination of any of the above. More specific examples (non-exhaustive list) of computer readable storage media include: electrical connections with one or more wires, portable computer disks, hard disks, random access memory (RAM), read only memory (Read Only Memory) ; hereinafter referred to as: ROM), Flash memory, erasable programmable read only memory (Erasable Programmable Read Only Memory; hereinafter referred to as: EPROM) or flash memory, optical fiber, portable compact disk read only memory (CD-ROM), optical storage devices , a magnetic memory device, or any suitable combination of the above. In this document, a computer-readable storage medium can be any tangible medium that contains or stores a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

A computer-readable signal medium may include a propagated data signal in baseband or as part of a carrier wave, with computer-readable program code embodied thereon. Such propagated data signals may take a variety of forms including, but not limited to, electromagnetic signals, optical signals, or any suitable combination of the foregoing. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium that can transmit, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device .

Program code embodied on a computer readable medium may be transmitted using any suitable medium including, but not limited to, wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

The foregoing describes specific embodiments of the present specification. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recited in the claims can be performed in an order different from that in the embodiments and still achieve desirable results. Additionally, the processes depicted in the figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of this specification. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine the different embodiments or examples described in this specification, as well as the features of the different embodiments or examples, without conflicting each other.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature delimited with "first", "second" may expressly or implicitly include at least one of that feature. In the description of the present specification, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined.

Any process or method description in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing custom logical functions or steps of the process , and the scope of the preferred embodiments of this specification includes alternative implementations in which the functions may be performed out of the order shown or discussed, including performing the functions substantially concurrently or in the reverse order depending upon the functions involved, which should It is understood by those skilled in the art to which the embodiments of this specification belong.

Depending on the context, the word "if" as used herein can be interpreted as "at" or "when" or "in response to determining" or "in response to detecting." Similarly, the phrases "if determined" or "if detected (the stated condition or event)" can be interpreted as "when determined" or "in response to determining" or "when detected (the stated condition or event)," depending on the context )" or "in response to detection (a stated condition or event)".

In the several embodiments provided in this specification, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined. Either it can be integrated into another system, or some features can be omitted, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

In addition, each functional unit in each embodiment of this specification may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional units.

The above descriptions are only preferred embodiments of this specification, and are not intended to limit this specification. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this specification shall be included in this specification. within the scope of protection.

Claims

A firmware upgrade method, characterized in that the method comprises:

determining a first storage space according to the description information of the first firmware, wherein part or all of the codes of the first firmware are stored in a preset memory, and the first storage space is located in a preset memory;

Perform an erasing operation on the first storage space during the first idle time of the Bluetooth transmission;

During the second idle time of Bluetooth transmission, the update package of the first firmware is written into the first storage space, wherein the update package is from the first Bluetooth device.
The method according to claim 1, wherein the description information of the first firmware is the information sent to the second Bluetooth device when the first Bluetooth device determines to upgrade the first firmware in the second Bluetooth device .
The method according to claim 1 or 2, wherein the description information of the first firmware includes: the size of the first firmware, the start address of the first storage space, and the running address of the code.
The method according to claim 1, wherein, in the first idle time of Bluetooth transmission, performing an erasing operation on the first storage space, comprising:

According to the size of the first storage space, M erasing operations are performed on the first storage space, each erasing operation is performed in the idle time of Bluetooth transmission, and the space erased by each erasing operation is a unit Integer multiple of space, M≥1;

Wherein, if the remaining space to be erased after the M-1 th erasing operation is performed is smaller than the size of one unit space, the to-be-erased space is supplemented into one unit space and the Mth erasing operation is performed.
The method according to claim 4, wherein performing the Qth erasing operation in the M times on the first storage space comprises:

Determine the erasing time required for the Qth erasing operation;

Determine the first time from the current time to the next sending and receiving interrupt node;

If the difference between the first time and the erasing time is within the first value range, the Qth erasing operation is performed at the first time; otherwise, the adjustment of the Bluetooth connection parameters is triggered.
The method according to claim 5, wherein the method further comprises:

After the Bluetooth connection parameters are adjusted, when it is determined that the difference between the second time from the current time to the next sending and receiving interrupt node and the erasing time is within the first value range, the Qth erasing operation is performed at the second time .
The method according to claim 1, wherein the update package of the first firmware is divided into a plurality of sub-update packages, and the first sub-update package is any sub-update package of the first firmware; A sub-update package is written into the first storage space, including:

determining the writing time required to write the first sub-update package into the first storage space;

Determine the third time from the current time to the next sending and receiving interrupt node;

If the difference between the third time and the writing time is within the second value range, write the first sub-update package into the first storage space at the third time; otherwise, trigger a Bluetooth connection parameter adjustment.
The method according to claim 7, wherein the method further comprises:

After the Bluetooth connection parameters are adjusted, when it is determined that the difference between the fourth time from the current time to the next sending and receiving interrupt node and the writing time is within the second value range, the first time is set at the fourth time. The sub-update package is written into the first storage space.
The method according to claim 7, wherein triggering the adjustment of Bluetooth connection parameters comprises:

If the difference between the third time and the writing time is less than the minimum boundary value of the second value range, determine whether the difference between the idle time corresponding to the subsequent N transceiving interrupt nodes and the writing time is not are less than the minimum boundary value;

If so, trigger an adjustment that increases the Bluetooth connection parameters.
The method according to claim 1, wherein after writing the update package of the first firmware into the first storage space, the method further comprises:

When the first firmware is restarted, the update package code of the first firmware is copied to the running address of the code and executed.
A firmware upgrade device, comprising:

The preset storage module is used to store part or all of the code of the first firmware and provide a first storage space; wherein, the corresponding firmware upgrade code in the first firmware includes the following functional modules:

a determining module, configured to determine the first storage space according to the description information of the first firmware;

an erasing module for performing an erasing operation on the first storage space during the first idle time of Bluetooth transmission; and for writing an update package of the first firmware into the first storage space during the second idle time of Bluetooth transmission the first storage space;

The Bluetooth transceiver module is used for receiving the update package from the first Bluetooth device.
A Bluetooth chip, characterized in that it includes:

a processor for executing computer program instructions stored in the memory, wherein, when the computer program instructions are executed by the processor, the Bluetooth chip is triggered to execute the method according to any one of claims 1 to 10 .
An electronic device, comprising:

at least one processor; and

at least one memory communicatively coupled to the processor, wherein:

The memory stores program instructions executable by the processor, and the processor invokes the program instructions to be able to perform the method as claimed in any one of claims 1 to 10.
A computer-readable storage medium, characterized in that the computer-readable storage medium comprises a stored program, wherein when the program is run, a device where the computer-readable storage medium is located is controlled to execute any one of claims 1 to 10 the method described.