CN115691630A

CN115691630A - Chip calibration method and device, computer equipment and storage medium

Info

Publication number: CN115691630A
Application number: CN202211351554.7A
Authority: CN
Inventors: 李骁; 李畅
Original assignee: Beijing Eswin Computing Technology Co Ltd; Guangzhou Quanshengwei Information Technology Co Ltd
Current assignee: Beijing Eswin Computing Technology Co Ltd; Guangzhou Quanshengwei Information Technology Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-02-03

Abstract

The application provides a chip calibration method, a chip calibration device, computer equipment and a storage medium, and belongs to the technical field of computers. The method comprises the following steps: calibrating the power of a rate module in a target chip at a first transmission rate under a first standard, and obtaining a first power calibration word corresponding to the first transmission rate when the rate module reaches a first expected power under the first transmission rate; determining a relative power between a second desired power at a second transmission rate and the first desired power for the rate module; saving first calibration data, the first calibration data comprising the first power calibration word and the relative power. According to the technical scheme, the power of each transmission rate in the rate module does not need to be calibrated to the expected power corresponding to the transmission rate, so that the calibration items are reduced and the calibration efficiency is improved on the premise of not influencing the functions of the chip.

Description

Chip calibration method and device, computer equipment and storage medium

Technical Field

The present disclosure relates to the field of computer technologies, and in particular, to a method and an apparatus for calibrating a chip, a computer device, and a storage medium.

Background

Due to the influence of factors such as design, manufacture and packaging in the chip production process, errors may occur during the operation of the chip. Therefore, the chip needs to be calibrated to ensure proper operation of the chip.

At present, after the chip is calibrated, the calibration data is usually stored in the erasable memory of the chip.

However, some chips do not package erasable memories, and only carry efuse (electrically programmable memory). Since the memory space of the otp memory is 512 bits, calibration data needs to be stored in a limited memory space and multiple calibrations need to be supported, which requires efficient calibration of the chip.

Disclosure of Invention

The embodiment of the application provides a chip calibration method, a chip calibration device, computer equipment and a storage medium, so that each transmission rate in a rate module does not need to be calibrated, calibration items are reduced on the premise of not influencing the functions of a chip, and the calibration efficiency is improved. The technical scheme is as follows:

in one aspect, a method for calibrating a chip is provided, the method including:

calibrating the power of a rate module in a target chip at a first transmission rate under a first standard, and obtaining a first power calibration word corresponding to the first transmission rate when the rate module reaches a first expected power under the first transmission rate;

determining a relative power between a second desired power at a second transmission rate and the first desired power for the rate module;

saving first calibration data, the first calibration data comprising the first power calibration word and the relative power.

In another aspect, there is provided a chip calibration apparatus, the apparatus including:

the calibration module is used for calibrating the power of the rate module in the target chip at a first transmission rate under a first standard, and when the rate module reaches a first expected power under the first transmission rate, a first power calibration word corresponding to the first transmission rate is obtained;

a first determining module for determining a relative power between a second desired power at a second transmission rate and the first desired power by the rate module;

a first saving module, configured to save first calibration data, where the first calibration data includes the first power calibration word and the relative power.

In some embodiments, the apparatus further comprises:

a second determining module, configured to determine, according to the first power calibration word and the relative power, a second power calibration word when the rate module reaches the second desired power at the second transmission rate.

In some embodiments, the first power calibration word, the relative power, and the second power calibration word conform to the following equation:

a =20log (x/y); wherein a represents the relative power; x represents the first power calibration word; representing the second power calibration word.

In some embodiments, the second desired power is a desired power of the rate module in the first format at the second transmission rate; or, the second expected power is an expected power of the rate module in a second standard at the second transmission rate, the second standard and the first standard are in the same calibration standard, and a calibration result of the rate module in the second standard is determined by a calibration result of the rate module in the first standard.

In some embodiments, the first calibration data is a calibration result for a first channel; the adjacent channel of the first channel adopts the same calibration result as the first channel; the number of the adjacent channels of the first channel is one or more, and the frequency difference between the adjacent channels of the first channel and the first channel is within a set range.

In some embodiments, the apparatus further comprises:

a third determining module for determining, based on the first power calibration word, a power difference between the power of the rate module at the first transmission rate and the first desired power at a second channel, the power difference being used to determine a calibration result for the second channel;

and the second storage module is used for storing the power difference.

In some embodiments, the apparatus further comprises:

a fourth determining module, configured to determine a calibration result for the second channel according to the power difference and the first power calibration word.

In some embodiments, the power difference, the first power calibration word, and the calibration result for the second channel conform to the following equation:

d =20log (p/q); wherein d represents the power difference; p represents the first power calibration word; q represents a calibration result for the second channel.

In some embodiments, adjacent channels of the second channel employ the same calibration results as the second channel; the number of the adjacent channels of the second channel is one or more, and the frequency difference between the adjacent channels of the second channel and the second channel is within a set range.

In some embodiments, the first saving module is configured to determine a difference between a historical power calibration word and the first power calibration word as a calibration word difference, where the historical power calibration word is a power calibration word obtained when the rate module reaches the first desired power at the first transmission rate after the rate module is calibrated for the power at the first transmission rate within a historical time period; and saving the first calibration data when the calibration word difference is not less than a calibration word variation threshold.

In some embodiments, the apparatus further comprises:

and a third saving module, configured to save the calibration word difference when the calibration word difference is smaller than the calibration word variation threshold.

In another aspect, a computer device is provided, which includes a processor and a memory, where the memory is used to store at least one piece of computer program, and the at least one piece of computer program is loaded and executed by the processor to implement the chip calibration method in the embodiment of the present application.

In another aspect, a computer-readable storage medium is provided, in which at least one piece of computer program is stored, and the at least one piece of computer program is loaded and executed by a processor to implement the chip calibration method as in the embodiment of the present application.

In another aspect, a computer program product is provided, comprising a computer program, which is executed by a processor to implement the chip calibration method provided in the embodiments of the present application.

The embodiment of the application provides a chip calibration method, which is characterized in that power of a rate module in a target chip to be calibrated at a first transmission rate is calibrated, when the rate module reaches a first expected power at the first transmission rate, a first power calibration word corresponding to the first transmission rate is obtained, and then relative power of a second expected power and the first expected power of the rate module at a second transmission rate is determined. The first power calibration word and the relative power, i.e. the first calibration data, may then be saved. The power calibration word of the rate module when reaching the corresponding expected power at other transmission rates can be determined through the relative power, so that the expected power corresponding to the transmission rate does not need to be calibrated to the power of each transmission rate in the rate module, the calibration items are reduced on the premise of not influencing the functions of the chip, and the calibration efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of an implementation environment of a chip calibration method according to an embodiment of the present application;

fig. 2 is a flowchart of a chip calibration method according to an embodiment of the present application;

FIG. 3 is a flow chart of another chip calibration method provided in accordance with an embodiment of the present application;

fig. 4 is a block diagram of a chip calibration apparatus according to an embodiment of the present application;

FIG. 5 is a block diagram of another chip calibration apparatus provided in accordance with an embodiment of the present application;

fig. 6 is a block diagram of a terminal according to an embodiment of the present application.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, the following detailed description of the embodiments of the present application will be made with reference to the accompanying drawings.

The terms "first," "second," and the like in this application are used for distinguishing between similar items and items that have substantially the same function or similar functionality, and it should be understood that "first," "second," and "nth" do not have any logical or temporal dependency or limitation on the number or order of execution.

The term "at least one" in this application means one or more, and the meaning of "a plurality" means two or more.

It should be noted that information (including but not limited to user equipment information, user personal information, etc.), data (including but not limited to data for analysis, stored data, presented data, etc.), and signals referred to in this application are authorized by the user or sufficiently authorized by various parties, and the collection, use, and processing of the relevant data is required to comply with relevant laws and regulations and standards in relevant countries and regions. For example, the chip and the chip parameters referred to in this application are obtained under full authorization.

Hereinafter, terms related to the present application are explained.

One-time programmable memory (effect): the capacity is usually small, and can be used for storing repair data and storing information of the chip: such as the power supply voltage available to the chip, the version number or date of manufacture of the chip, etc.

A first power calibration word: the terminal calibrates the power of a rate module of the target chip at a first transmission rate, and obtains a power calibration word when the rate module reaches a first desired power at the first transmission rate.

First desired power: the power theoretically achieved by the rate module at various transmission rates is different than the expected power achieved by the rate module at different transmission rates.

Relative power: taking the first expected power of the first transmission rate as reference, for any second transmission rate of the rate module of the target chip, the difference value of the absolute value of the second expected power corresponding to the second transmission rate and the first expected power corresponding to the first transmission rate is the relative power of the second transmission rate, and the relative power is the difference value of powers achieved by the rate module under different transmission rates theoretically.

Historical power calibration word: and in the historical time period, the rate module of the target chip obtains the power calibration word when reaching the first expected power at the first transmission rate.

Power difference: the difference between the power of the rate module at the first transmission rate and the first desired power at the second channel.

Calibrating the word difference: a difference of the historical power calibration word and the first power calibration word.

The chip calibration method provided by the embodiment of the application can be executed by computer equipment. In some embodiments, the computer device is a terminal. Fig. 1 is a schematic diagram of an implementation environment of a chip calibration method according to an embodiment of the present application. Referring to fig. 1, the implementation environment specifically includes: a PC (Personal Computer) terminal 101, a Radio Frequency (RF) comprehensive tester 102, and a DUT (Device Under Test) 103. The PC terminal 101 may be connected to the RF integrated instrument 102 through a wireless network or a wired network.

The PC terminal 101 may be, but is not limited to, a tablet PC, a notebook PC, a desktop PC, and the like. The PC terminal 101 is installed and operated with an application program supporting chip calibration.

The RF comprehensive testing instrument 102 is used for radio frequency performance testing of a wireless product production line, can be used for radio frequency performance testing of products such as WIFI, bluetooth and ZigBee in a non-signaling mode, and has the characteristics of easiness in deployment and use, accuracy in testing, high testing efficiency and low cost.

The DUT103 may be, but is not limited to, a smart phone, a tablet, a laptop, a desktop computer, a smart speaker, a smart watch, etc. that mounts a chip to be calibrated.

In some embodiments, the PC terminal is a control terminal for chip calibration, and provides an interactive interface for interaction with a user. The PC end is connected with the RF integrated measuring instrument through a wired network or a wireless network, and is connected with the DUT through a USB (Universal Serial Bus) interface, and the DUT is provided with a chip to be calibrated. The RF comprehensive tester is connected with the chip through a radio frequency cable. When the chip calibration system is operated, the object can be used for calibrating the chip through the RF comprehensive instrument, and the calibration result is stored in the efuse of the chip. The calibration result of the chip can also be transmitted to the PC terminal through the USB.

Fig. 2 is a flowchart of a chip calibration method according to an embodiment of the present application, and as shown in fig. 2, the chip calibration method is described in the embodiment of the present application by being executed by a terminal as an example. The method comprises the following steps:

201. the terminal calibrates the power of the rate module in the target chip at a first transmission rate in a first standard, and obtains a first power calibration word corresponding to the first transmission rate when the rate module reaches a first expected power at the first transmission rate.

In the embodiment of the present application, since the chip is affected by various factors during the production process, an error may occur during the operation, and therefore the chip needs to be calibrated to ensure the normal operation of the chip. When the terminal calibrates the target chip, the terminal needs to calibrate the multiple calibration standards respectively, and the calibration process is described in this embodiment by taking the first standard as an example. The calibration standard is a communication standard to be achieved by a target chip to be calibrated.

The target chip includes a plurality of modules, such as a rate module, a channel module, a storage module, and the like, for implementing different functions. The terminal can calibrate the power of the rate module in the target chip in the first standard, and when the rate module reaches a preset first expected power at the first transmission rate, a first power calibration word is obtained. Wherein the first transmission rate is any one of a plurality of transmission rates of a rate module. The first desired power is the power that the rate module is expected to calibrate to at the first transmission rate. The first power calibration word is a parameter such as voltage, current and the like corresponding to the rate module when the first transmission rate reaches a first expected power. The power of the rate module of the target chip is calibrated in the first standard, so that the function of the rate module can be normally realized, and the normal operation of the chip is ensured.

202. The terminal determines a relative power between a second desired power and the first desired power at a second transmission rate by the rate module.

In the embodiment of the present application, when the power of the rate module is calibrated, since the rate module includes multiple transmission rates, if the power of each transmission rate is calibrated to the desired power corresponding to the transmission rate, a large amount of calibration time is consumed, so that the calibration efficiency is reduced. Thus, the terminal may determine a plurality of relative powers to reduce the calibration term, i.e., not calibrate all transmission rates in the rate module. For any second transmission rate, the terminal may determine a difference between the absolute value of the desired power corresponding to the second transmission rate and the first desired power of the first transmission rate, that is, the relative power, with reference to the first desired power corresponding to the first transmission rate. Wherein the second transmission rate is any one of a plurality of transmission rates except the first transmission rate. Then, the terminal may determine the actual power when the rate module reaches the transmission rate based on the relative power of the second transmission rate, and may obtain a corresponding calibration result based on the relative power of the transmission rate, so that it is not necessary to calibrate the power of each transmission rate to the expected power corresponding to the transmission rate, and calibration terms are reduced, thereby improving calibration efficiency.

203. The terminal stores first calibration data, the first calibration data including a first power calibration word and a relative power.

In this embodiment, the terminal may store a calibration result, that is, first calibration data, corresponding to the first transmission rate of the rate module in the first standard. Alternatively, the terminal may save the first calibration data in a memory of the target chip. The memory may be an erasable memory or a disposable memory, and the efuse is taken as an example in the embodiment of the present application for description. Since efuse is a one-time memory and has a limited storage space. Therefore, after the terminal calibrates the power of the rate module, it is not necessary to store all calibration results, but only the first power calibration word and the plurality of relative powers are stored. When the terminal determines the power calibration word when the rate module reaches the corresponding expected power at other transmission rates, the power calibration word when the corresponding expected power at the transmission rate is reached can be calculated only by the relative power of the first power calibration word and the transmission rate. By saving the first power calibration word and the relative power storage, it is not necessary to store the entire calibration result, thereby reducing the storage space occupation.

The embodiment of the application provides a chip calibration method, which is characterized in that power of a rate module in a target chip to be calibrated at a first transmission rate is calibrated, when the rate module reaches a first expected power at the first transmission rate, a first power calibration word corresponding to the first transmission rate is obtained, and then relative power of a second expected power and the first expected power of the rate module at a second transmission rate is determined. The first power calibration word and the relative power, i.e., the first calibration data, may then be saved. The power calibration word of the rate module when reaching the corresponding expected power at other transmission rates can be determined through the relative power, so that the expected power corresponding to the transmission rate does not need to be calibrated to the power of each transmission rate in the rate module, the calibration items are reduced on the premise of not influencing the functions of the chip, and the calibration efficiency is improved.

Fig. 3 is a flowchart of another chip calibration method provided in the embodiment of the present application, and as shown in fig. 3, the embodiment of the present application is described as an example executed by a terminal. The method comprises the following steps:

301. the terminal calibrates the power of the rate module in the target chip at a first transmission rate in a first standard, and obtains a first power calibration word corresponding to the first transmission rate when the rate module reaches a first expected power at the first transmission rate.

In the embodiment of the present application, taking the target chip as a Wifi chip as an example, the Wifi chip has a plurality of calibration standards, such as 802.11b, 802.11g, 802.11n, and 802.11ax, where 802.11n can be divided into a bandwidth of 20MHz and a bandwidth of 40MHz. Taking any one of the above standard systems as an example, a calibration process of the target chip will be described.

The target chip includes a plurality of modules for implementing different functions, and the calibration of the power of the rate module in the target chip is described as an example. The terminal adjusts the power of the rate module by adjusting the voltage, the current and other parameters of the rate module, and determines a first power calibration word when the rate module reaches a preset first expected power at a first transmission rate, so that the power of the rate module is calibrated. The first power calibration word is a parameter such as voltage and current corresponding to the rate module reaching a first desired power at a first transmission rate. The power of the rate module of the target chip is calibrated in the first standard, so that the function of the rate module can be normally realized, and the normal operation of the chip is ensured.

In some embodiments, because a certain association relationship exists among the plurality of calibration standards, the terminal may calculate the calibration result of the second standard according to the calibration result of the first standard, so that the terminal does not need to calibrate the second standard any more. The second system and the first system are the same calibration system, and the calibration result of the rate module in the second system can be determined through the calibration result of the rate module in the first system, so that the calibration result of the same system can be obtained based on the calibration result of the first system, all calibration systems do not need to be calibrated, calibration items are reduced, and the calibration efficiency is improved.

For example, taking a Wifi chip as an example, the calibration standards of the chip include 802.11b, 802.11g, 802.11n _20m, 802.11n _40m, and 802.11ax. Because the terminal can calculate the calibration results of the calibration standard 802.11g and the calibration standard 802.11ax based on the capacitance parameter, the resistance parameter and the chip characteristic in the chip and the calibration result of the calibration standard 802.11n, that is, the calibration standard 802.11g and the calibration standard 802.11ax are the second standard, the calibration standard 802.11n is the first standard, and the calibration standard 802.11g, the calibration standard 802.11ax and the calibration standard 802.11n are the same type of calibration standard. Thus, the terminal only needs to calibrate 802.11b, 802.11n _20M, and 802.11n _40M. Taking the calibration of the power of the rate module of the chip as an example, after the terminal determines the calibration result of the power of the rate module in the chip in the calibration standard 802.11n, the terminal can obtain the calibration result of the power of the rate module in the calibration standard 802.11g and the calibration result of the power of the rate module in the calibration standard 802.11ax based on the calibration result. It should be noted that, because the capacitance parameter, the resistance parameter, and the chip characteristic of the chip are different, the association relationships between different calibration standards are also not completely the same, and therefore, the embodiment of the present application does not limit the manner in which the calibration result of the second standard is obtained by calculating the calibration result of the first standard.

302. The terminal determines a relative power between the second desired power and the first desired power at the second transmission rate for the rate module.

In the embodiment of the application, after the terminal determines the first standard for calibrating the target chip, the expected powers preset to be reached by the rate module at different transmission rates are different in the first standard. Therefore, the terminal may first calibrate the power of the rate module at the first transmission rate to obtain a first power calibration word. And then, taking the first expected power corresponding to the first transmission rate as a reference, namely the power theoretically reached at the first transmission rate as a reference, and determining the difference value of the second expected power corresponding to the second transmission rate and the absolute value of the first expected power of the first transmission rate. The terminal may then be able to derive a power calibration word at a second desired power at the second transmission rate based on the relative power of the second transmission rate and the first power calibration word. Wherein the second transmission rate is any one of the plurality of transmission rates except the first transmission rate. By determining the plurality of relative powers, the power calibration words corresponding to other transmission rates can be obtained without calibrating the power of other transmission rates in the rate module to the expected power corresponding to the transmission rate, so that calibration items are reduced, and the calibration efficiency is improved.

For example, taking the first standard 802.11b as an example, the rate module in the first standard includes 4 transmission rates. The desired powers for the 4 transmission rates are 20dbm,19dbm,18dbm and 17dbm, respectively. The terminal takes the first expected power corresponding to the first transmission rate as a reference, namely 20dbm as a reference, and relative powers of other transmission rates are-1 dbm, -2dbm and-3 dbm respectively.

It should be noted that, the terminal may also directly obtain a plurality of stored relative powers based on the model of the chip, so as to further improve the calibration efficiency of the chip.

303. The terminal stores first calibration data, the first calibration data including a first power calibration word and a relative power.

In the embodiment of the application, because the disposable memory with the efuse of 512 bits cannot be erased and written, after the necessary information of the chip is stored, only an area of about 208 bits may be left for storing the calibration result, and the storage space occupied by the relative power is small, so that multiple times of calibration can be supported. Therefore, the terminal need only store the first power calibration word and the relative power. When the terminal wants to determine the power calibration word when the rate module reaches the corresponding expected power at other transmission rates, the power calibration word when the rate module reaches the expected power corresponding to the transmission rate can be obtained only by calculating the relative power of the first power calibration word and the transmission rate. By saving the first power calibration word and the relative power, it is not necessary to store the entire calibration result, thereby reducing the storage space occupation.

In some embodiments, the terminal does not need to calibrate again for other transmission rates in the rate module after the rate module reaches the first desired power at the first transmission rate. Accordingly, for any second transmission rate in the rate module, the terminal may determine, based on the relative power corresponding to the second transmission rate and the first power calibration word, the power calibration word when the rate module reaches the second desired power at the second transmission rate, that is, the second power calibration word. The second power calibration word is a parameter such as voltage and current corresponding to the rate module when the rate module reaches a second desired power at a second transmission rate. By determining the second power calibration word based on the relative power and the first power calibration word, the power of each transmission rate in the rate module does not need to be calibrated to the expected power corresponding to the transmission rate, calibration items are reduced, and calibration efficiency is improved.

It should be noted that the second expected power may be an expected power of the rate module in the first standard at the second transmission rate, or may be an expected power of the rate module in the second standard at the second transmission rate. Therefore, the terminal can obtain the calibration result of the rate module under the same standard at the second transmission rate, and also can obtain the calibration result of the rate module under the same type of calibration standard of the first standard at the second transmission rate.

In some embodiments, the terminal may determine the second power calibration word by equation (1) below for when the rate module reaches the second desired power at the second transmission rate.

a＝20log(x/y) (1)

Wherein a represents the relative power of the second transmission rate; x represents a first power calibration word for the rate module at the first desired power at the first transmission rate; y represents a second power calibration word at which the rate module reaches a second desired power at a second transmission rate.

For example, taking the calibration standard 802.11b as an example, the first expected power for the first transmission rate is 20dbm. For any second transmission rate, the second desired power for that second transmission rate is 18dbm. The terminal may determine that the relative power for the second transmission rate is-2 dbm. Assuming that the rate module presets the first expected power to be reached at the first transmission rate to be 22dbm, the terminal may obtain, by using equation (1) above, a second power calibration word when the rate module reaches the second expected power at the second transmission rate.

It should be noted that, due to the influence of human error or hardware modification, the calibration result is not necessarily accurate, and the terminal can perform multiple times of calibration on the target chip. Since the memory space of the memory of the target chip is limited, the difference of the multiple calibration results is less than the memory space occupied by all the calibration results of the multiple calibration. Therefore, the terminal can obtain the difference value between the historical power calibration word and the first power calibration word, namely the calibration word difference, and then store different calibration results based on the relationship between the calibration word difference and the calibration word variation threshold. The historical power calibration word is obtained after the power of the rate module at the first transmission rate is calibrated in the historical time period, and when the rate module reaches the first expected power at the first transmission rate. Accordingly, in the case where the calibration word difference is not less than the calibration word variation threshold, the terminal saves the first calibration data. Or, the terminal saves the calibration word difference when the calibration word difference is smaller than the calibration word variation threshold. By determining the difference between the historical power calibration word and the first power calibration word, different calibration results can be stored based on the difference, thereby improving storage efficiency.

For example, the terminal obtains the historical power calibration word 71456, and the first power calibration word obtained by calibrating the power of the rate module at the first transmission rate is 71450. The terminal may determine that the historical power calibration word and the first power calibration word have a calibration word difference of 6. Assuming that the calibration word variation threshold is 10 and the calibration word difference is smaller than the calibration word variation threshold, the terminal may store only the calibration word difference, i.e. 6, into the efuse of the target chip.

It should be noted that both the rate module and the channel module of the target chip need to be calibrated. Correspondingly, when the terminal calibrates the target chip, in the first standard, the terminal calibrates the power of the rate module of the target chip at the first transmission rate by executing the above steps 301 to 303, and obtains a calibration result for the first channel, that is, a first power calibration word. The terminal may then obtain the calibration result of the target chip in the second channel by performing step 304 described below.

304. And the terminal determines the power difference between the power of the rate module at the first transmission rate and the first expected power at the second channel based on the first power calibration word corresponding to the first channel, wherein the power difference is used for determining the calibration result aiming at the second channel.

In this embodiment of the application, the terminal obtains the calibration result of the target chip in the first system in the first channel through the above steps 301 to 303, that is, the first calibration data. Then, the terminal may calculate a calibration result for the second channel based on the calibration result of the first channel. Because the calibration result occupies a larger storage space compared with the power difference, the terminal can reserve the power difference between the other channels and the first channel so as to reduce the occupation of the storage space. By determining the power difference, the calibration results of other channels can be determined based on the power difference, so that the power of the rate module under all channels does not need to be calibrated, calibration items are reduced, and the calibration efficiency is improved.

It should be noted that, taking the channel module divided into a high channel, a medium channel and a low channel as an example, each channel classification includes at least one channel. Taking the first channel as any one of the medium channels as an example, the first calibration data is the calibration result for the first channel. The intermediate channel comprises at least one channel, other channels in the intermediate channel are adjacent channels of the first channel, the number of the adjacent channels is one or more, and the calibration result of the adjacent channels is consistent with the calibration result of the first channel. And the frequency difference between the adjacent channel and the first channel is within a set range.

For example, taking a Wifi chip as an example, the calibration standards of the chip include 802.11b, 802.11g, 802.11n _20m, 802.11n _40m, and 802.11ax. The calibration standard of the chip generally supports 13 channels, wherein channels 1-4 are low channels, channels 5-8 are medium channels, and channels 9-13 are high channels. The first channel belongs to the middle channel classification, and taking the first channel as the channel 6 as an example, the channel 5, the channel 7, and the channel 8 in the middle channel classification are adjacent channels of the channel 6, that is, the calibration results of the channel 5, the channel 7, and the channel 8 are consistent with the calibration result of the channel 6.

It should be noted that the adjacent channel of the second channel and the calibration result of the second channel are also consistent. The frequency difference between the adjacent channels of the second channel and the second channel is within a set range, and the number of the adjacent channels of the second channel may be one or more. The setting range may be the same as or different from the setting range of the first channel, which is not limited in the embodiment of the present application.

For example, the second channel may belong to a low channel class or a high channel class, i.e. may be any of channels 1-4 or 9-13. Taking the second channel as the channel 1 as an example, the other channels in the low channel are adjacent channels of the second channel, that is, the channel 2, the channel 3, and the channel 4 are adjacent channels of the second channel, and are consistent with the calibration result of the second channel.

For example, assume that the first channel is any one of the medium channels and the second channel is any one of the high channels. The first desired power for the first channel is 20dbm. The power achieved by the rate module at the first transmission rate is 22dbm on the second channel. Then the terminal can determine the power difference to be 2dbm.

305. The terminal saves the power difference.

In the embodiment of the present application, since the efuse memory space is limited, the power difference occupies less memory space compared to the power calibration word. Therefore, the terminal only needs to save the power difference. When the terminal wants to determine the calibration result of the rate module under the second channel at the first transmission rate, the calibration result for the second channel can be obtained only by calculating the power difference between the first calibration data corresponding to the first channel and the second channel. By saving the power difference, the calibration results of the rate module under different transmission rates under all channels do not need to be stored, so that the storage space occupation is reduced.

In some embodiments, after the terminal determines the first calibration data corresponding to the first channel, for any other channel, if the channel is an adjacent channel to the first channel, the calibration result of the channel is consistent with the first channel. If the channel is the second channel, the terminal may obtain a calibration result for the channel based on the first calibration data and the power difference. By determining the calibration result corresponding to the second channel based on the power difference and the first power calibration word corresponding to the first channel, the power of the rate modules under all channels does not need to be determined, calibration items are reduced, and calibration efficiency is improved.

In some embodiments, the terminal may determine the calibration result for the second channel by equation (2) below.

d＝20log(p/q) (2)

Wherein d represents a power difference corresponding to the second channel; p represents a first power calibration word corresponding to the first channel; q denotes a calibration result for the second channel.

For example, after calibrating the power of the rate module at the first transmission rate in the first standard, the terminal obtains first calibration data corresponding to the first channel, where the first power calibration word is 33660. Assume that the first desired power for the first transmission rate is 22dbm and the power of the rate module at the first transmission rate is 20dbm for the second channel. The terminal may then determine that the power difference is 2dbm. Then, the terminal may determine the calibration result for the second channel through the above equation (2).

The embodiment of the application provides a chip calibration method, which is characterized in that power of a rate module in a target chip to be calibrated at a first transmission rate is calibrated, when the rate module reaches a first expected power at the first transmission rate, a first power calibration word corresponding to the first transmission rate is obtained, relative power of a second expected power and the first expected power of the rate module at a second transmission rate is determined, and then the first power calibration word and the relative power can be stored, namely first calibration data. The power calibration word of the rate module when reaching the corresponding expected power at other transmission rates can be determined through the relative power, so that the expected power corresponding to the transmission rate does not need to be calibrated to the power of each transmission rate in the rate module, the calibration items are reduced on the premise of not influencing the functions of the chip, and the calibration efficiency is improved.

Fig. 4 is a block diagram of a chip calibration apparatus provided in an embodiment of the present application. Referring to fig. 4, the apparatus comprises:

the calibration module 401 is configured to calibrate power of a rate module in a target chip at a first transmission rate in a first standard, and obtain a first power calibration word corresponding to the first transmission rate when the rate module reaches a first expected power at the first transmission rate;

a first determining module 402 for determining a relative power between a second desired power and a first desired power at a second transmission rate by the rate module;

a first saving module 403, configured to save first calibration data, where the first calibration data includes a first power calibration word and a relative power.

In some embodiments, fig. 5 is a block diagram of another chip calibration apparatus provided according to embodiments of the present application.

In some embodiments, referring to fig. 5, the apparatus further comprises:

a second determining module 404, configured to determine a second power calibration word when the rate module reaches a second desired power at a second transmission rate according to the first power calibration word and the relative power.

a =20log (x/y); wherein a represents the relative power; x represents a first power calibration word; y denotes a second power calibration word.

In some embodiments, the second desired power is a desired power of the rate module in the first format at the second transmission rate; or the second expected power is the expected power of the rate module in the second standard at the second transmission rate, the second standard and the first standard are the same type of calibration standard, and the calibration result of the rate module in the second standard is determined by the calibration result of the rate module in the first standard.

In some embodiments, the first calibration data is a calibration result for the first channel; the adjacent channel of the first channel adopts the same calibration result as the first channel; the number of the adjacent channels of the first channel is one or more, and the frequency difference between the adjacent channels of the first channel and the first channel is within a set range.

In some embodiments, referring to fig. 5, the apparatus further comprises:

a third determining module 405, configured to determine, based on the first power calibration word, a power difference between the power of the rate module at the first transmission rate and the first desired power at the second channel, the power difference being used to determine a calibration result for the second channel;

a second saving module 406, configured to save the power difference.

In some embodiments, referring to fig. 5, the apparatus further comprises:

a fourth determining module 407 configured to determine a calibration result for the second channel according to the power difference and the first power calibration word.

d =20log (p/q); wherein d represents a power difference; p represents a first power calibration word; q denotes a calibration result for the second channel.

In some embodiments, the first saving module 403 is configured to determine a difference between the historical power calibration word and the first power calibration word as a calibration word difference, where the historical power calibration word is a power calibration word obtained when the rate module reaches a first expected power at a first transmission rate after calibrating the power of the rate module at the first transmission rate in a historical time period; in the case where the calibration word difference is not less than the calibration word variation threshold, the first calibration data is saved.

In some embodiments, referring to fig. 5, the apparatus further comprises:

a third saving module 408, configured to save the calibration word difference if the calibration word difference is smaller than the calibration word variation threshold.

The embodiment of the application provides a chip calibration device, power of a rate module in a target chip to be calibrated at a first transmission rate is calibrated, when the rate module reaches a first expected power at the first transmission rate, a first power calibration word corresponding to the first transmission rate is obtained, relative power of a second expected power and the first expected power of the rate module at a second transmission rate is determined, and then the first power calibration word and the relative power can be saved, namely first calibration data. The power calibration word when the rate module reaches the corresponding expected power at other transmission rates can be determined through the relative power, so that the power of each transmission rate in the rate module does not need to be calibrated to the expected power corresponding to the transmission rate, calibration items are reduced on the premise of not influencing the functions of a chip, and the calibration efficiency is improved.

It should be noted that: in the chip calibration device provided in the above embodiment, when running an application program, only the division of the functional modules is exemplified, and in practical applications, the function distribution may be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the chip calibration device and the chip calibration method provided by the above embodiments belong to the same concept, and specific implementation processes thereof are detailed in the method embodiments and are not described herein again.

Fig. 6 is a block diagram of an electronic device 600 provided in an embodiment of the present application. The electronic device 600 may be a portable mobile terminal, such as: a smart phone, a tablet computer, an MP3 player (Moving Picture Experts Group Audio Layer III, motion Picture Experts compression standard Audio Layer 3), an MP4 player (Moving Picture Experts Group Audio Layer IV, motion Picture Experts compression standard Audio Layer 4), a notebook computer, or a desktop computer. The electronic device 600 may also be referred to by other names such as user equipment, portable terminal, laptop terminal, desktop terminal, and so forth.

In general, the electronic device 600 includes: a processor 601 and a memory 602.

The processor 601 may include one or more processing cores, such as a 4-core processor, an 8-core processor, and so on. The processor 601 may be implemented in at least one hardware form of a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), and a PLA (Programmable Logic Array). The processor 601 may also include a main processor and a coprocessor, where the main processor is a processor for Processing data in an awake state, and is also called a Central Processing Unit (CPU); a coprocessor is a low power processor for processing data in a standby state. In some embodiments, the processor 601 may be integrated with a GPU (Graphics Processing Unit), which is responsible for rendering and drawing the content that the display screen needs to display. In some embodiments, processor 601 may further include an AI (Artificial Intelligence) processor for processing computing operations related to machine learning.

Memory 602 may include one or more computer-readable storage media, which may be non-transitory. The memory 602 may also include high-speed random access memory, as well as non-volatile memory, such as one or more magnetic disk storage devices, flash memory storage devices. In some embodiments, a non-transitory computer readable storage medium in the memory 602 is used to store at least one computer program for execution by the processor 601 to implement the chip calibration method provided by the method embodiments herein.

In some embodiments, the electronic device 600 may further optionally include: a peripheral interface 603 and at least one peripheral. The processor 601, memory 602, and peripheral interface 603 may be connected by buses or signal lines. Various peripheral devices may be connected to the peripheral interface 603 via a bus, signal line, or circuit board. Specifically, the peripheral device includes: at least one of radio frequency circuitry 604, display screen 605, camera assembly 606, audio circuitry 607, and power supply 608.

The peripheral interface 603 may be used to connect at least one peripheral related to I/O (Input/Output) to the processor 601 and the memory 602. In some embodiments, the processor 601, memory 602, and peripheral interface 603 are integrated on the same chip or circuit board; in some other embodiments, any one or two of the processor 601, the memory 602, and the peripheral interface 603 may be implemented on a separate chip or circuit board, which is not limited in this embodiment.

The Radio Frequency circuit 604 is used for receiving and transmitting RF (Radio Frequency) signals, also called electromagnetic signals. The radio frequency circuitry 604 communicates with a communication network and other communication devices via electromagnetic signals. The rf circuit 604 converts an electrical signal into an electromagnetic signal to transmit, or converts a received electromagnetic signal into an electrical signal. In some embodiments, the radio frequency circuitry 604 includes: an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a codec chipset, a subscriber identity module card, and so forth. The radio frequency circuit 604 may communicate with other terminals via at least one wireless communication protocol. The wireless communication protocols include, but are not limited to: the world wide web, metropolitan area networks, intranets, generations of mobile communication networks (2G, 3G, 4G, and 5G), wireless local area networks, and/or WiFi (Wireless Fidelity) networks. In some embodiments, the rf circuit 604 may further include NFC (Near Field Communication) related circuits, which are not limited in this application.

The display 605 is used to display a UI (User Interface). The UI may include graphics, text, icons, video, and any combination thereof. When the display screen 605 is a touch display screen, the display screen 605 also has the ability to capture touch signals on or above the surface of the display screen 605. The touch signal may be input to the processor 601 as a control signal for processing. At this point, the display 605 may also be used to provide virtual buttons and/or a virtual keyboard, also referred to as soft buttons and/or a soft keyboard. In some embodiments, the display 605 may be one, disposed on the front panel of the electronic device 600; in other embodiments, the display 605 may be at least two, respectively disposed on different surfaces of the electronic device 600 or in a foldable design; in other embodiments, the display 605 may be a flexible display disposed on a curved surface or a folded surface of the electronic device 600. Even more, the display 605 may be arranged in a non-rectangular irregular pattern, i.e., a shaped screen. The Display 605 may be made of LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), and the like.

The camera assembly 606 is used to capture images or video. In some embodiments, camera assembly 606 includes a front camera and a rear camera. Generally, a front camera is disposed at a front panel of the terminal, and a rear camera is disposed at a rear surface of the terminal. In some embodiments, the number of the rear cameras is at least two, and each rear camera is any one of a main camera, a depth-of-field camera, a wide-angle camera and a telephoto camera, so that the main camera and the depth-of-field camera are fused to realize a background blurring function, the main camera and the wide-angle camera are fused to realize panoramic shooting and a VR (Virtual Reality) shooting function or other fusion shooting functions. In some embodiments, camera assembly 606 may also include a flash. The flash lamp can be a single-color temperature flash lamp or a double-color temperature flash lamp. The double-color-temperature flash lamp is a combination of a warm-light flash lamp and a cold-light flash lamp and can be used for light compensation under different color temperatures.

Audio circuitry 607 may include a microphone and a speaker. The microphone is used for collecting sound waves of a user and the environment, converting the sound waves into electric signals, and inputting the electric signals to the processor 601 for processing or inputting the electric signals to the radio frequency circuit 604 to realize voice communication. The microphones may be provided in a plurality, respectively, at different portions of the electronic device 600 for the purpose of stereo sound acquisition or noise reduction. The microphone may also be an array microphone or an omni-directional pick-up microphone. The speaker is used to convert the electrical signals from the processor 601 or the radio frequency circuit 604 into sound waves. The loudspeaker can be a traditional film loudspeaker or a piezoelectric ceramic loudspeaker. When the speaker is a piezoelectric ceramic speaker, the speaker can be used for purposes such as converting an electric signal into a sound wave audible to a human being, or converting an electric signal into a sound wave inaudible to a human being to measure a distance. In some embodiments, audio circuitry 607 may also include a headphone jack.

The power supply 608 is used to provide power to various components in the electronic device 600. The power supply 608 may be alternating current, direct current, disposable or rechargeable. When the power supply 608 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. The wired rechargeable battery is a battery charged through a wired line, and the wireless rechargeable battery is a battery charged through a wireless coil. The rechargeable battery may also be used to support fast charge technology.

In some embodiments, the electronic device 600 also includes one or more sensors 609. The one or more sensors 609 include, but are not limited to: acceleration sensor 610, gyro sensor 611, pressure sensor 612, optical sensor 613, and proximity sensor 614.

The acceleration sensor 610 may detect acceleration magnitudes on three coordinate axes of a coordinate system established with the electronic device 600. For example, the acceleration sensor 610 may be used to detect components of the gravitational acceleration in three coordinate axes. The processor 601 may control the display screen 605 to display the user interface in a landscape view or a portrait view according to the gravitational acceleration signal collected by the acceleration sensor 610. The acceleration sensor 610 may also be used for acquisition of motion data of a game or a user.

The gyro sensor 611 may detect a body direction and a rotation angle of the electronic device 600, and the gyro sensor 611 and the acceleration sensor 610 cooperate to acquire a 3D motion of the user on the electronic device 600. The processor 601 may implement the following functions according to the data collected by the gyro sensor 611: motion sensing (such as changing the UI according to a user's tilting operation), image stabilization at the time of photographing, game control, and inertial navigation.

The pressure sensor 612 may be disposed on a side bezel of the electronic device 600 and/or an underlying layer of the display 605. When the pressure sensor 612 is disposed on a side frame of the electronic device 600, a holding signal of the user to the electronic device 600 may be detected, and the processor 601 performs left-right hand recognition or shortcut operation according to the holding signal collected by the pressure sensor 612. When the pressure sensor 612 is disposed at the lower layer of the display screen 605, the processor 601 controls the operability control on the UI interface according to the pressure operation of the user on the display screen 605. The operability control comprises at least one of a button control, a scroll bar control, an icon control and a menu control.

The optical sensor 613 is used to collect the ambient light intensity. In one embodiment, processor 601 may control the display brightness of display screen 605 based on the ambient light intensity collected by optical sensor 613. Specifically, when the ambient light intensity is high, the display brightness of the display screen 605 is increased; when the ambient light intensity is low, the display brightness of the display screen 605 is adjusted down. In another embodiment, the processor 601 may also dynamically adjust the shooting parameters of the camera assembly 606 according to the ambient light intensity collected by the optical sensor 613.

A proximity sensor 614, also known as a distance sensor, is typically disposed on the front panel of the electronic device 600. The proximity sensor 614 is used to capture the distance between the user and the front of the electronic device 600. In one embodiment, when the proximity sensor 614 detects that the distance between the user and the front of the electronic device 600 is gradually decreased, the processor 601 controls the display 605 to switch from the bright screen state to the dark screen state; when the proximity sensor 614 detects that the distance between the user and the front of the electronic device 600 is gradually increased, the processor 601 controls the display 605 to switch from the breath-screen state to the bright-screen state.

Those skilled in the art will appreciate that the configuration shown in fig. 6 is not limiting to the electronic device 600, and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components may be used.

The embodiment of the present application further provides a computer-readable storage medium, where at least one piece of computer program is stored in the computer-readable storage medium, and the at least one piece of computer program is loaded and executed by a processor of a terminal to implement the operations performed by the terminal in the chip calibration method according to the foregoing embodiment. For example, the computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a Compact Disc Read-Only Memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, and the like.

Embodiments of the present application also provide a computer program product or a computer program comprising computer program code stored in a computer readable storage medium. The processor of the terminal reads the computer program code from the computer-readable storage medium, and the processor executes the computer program code, so that the terminal performs the chip calibration method provided in the above-described various alternative implementations.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.

The above description is intended only to illustrate the alternative embodiments of the present application, and should not be construed as limiting the present application, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A method of chip calibration, the method comprising:

2. The method of claim 1, further comprising:

determining a second power calibration word at which the rate module reaches the second desired power at the second transmission rate based on the first power calibration word and the relative power.

3. The method of claim 2, wherein the first power calibration word, the relative power, and the second power calibration word conform to the following equation:

a =20log (x/y); wherein a represents the relative power; x represents the first power calibration word; y represents the second power calibration word.

4. A method according to any one of claims 1 to 3, wherein the second desired power is a desired power of the rate module in the first format at the second transmission rate; alternatively, the first and second electrodes may be,

the second expected power is an expected power of the rate module in a second standard at a second transmission rate, the second standard and the first standard are in the same calibration standard, and a calibration result of the rate module in the second standard is determined by a calibration result of the rate module in the first standard.

5. The method of claim 1, wherein the first calibration data is a calibration result for a first channel; the adjacent channel of the first channel adopts the same calibration result as the first channel; the number of the adjacent channels of the first channel is one or more, and the frequency difference between the adjacent channels of the first channel and the first channel is within a set range.

6. The method of claim 5, wherein the first calibration data is a calibration result for the first channel; the method further comprises the following steps:

determining, based on the first power calibration word, a power difference between the power of the rate module at the first transmission rate and the first desired power at a second channel, the power difference being used to determine a calibration result for the second channel;

the power difference is saved.

7. The method of claim 6, further comprising:

determining a calibration result for the second channel based on the power difference and the first power calibration word.

8. The method of claim 7, wherein the power difference, the first power calibration word, and the calibration result for the second channel conform to the following equation:

9. The method according to claim 7 or 8, wherein the adjacent channel of the second channel uses the same calibration result as the second channel; the number of the adjacent channels of the second channel is one or more, and the frequency difference between the adjacent channels of the second channel and the second channel is within a set range.

10. The method of claim 1, wherein said saving first calibration data comprises:

determining a difference value between a historical power calibration word and the first power calibration word as a calibration word difference, wherein the historical power calibration word is a power calibration word obtained when the rate module reaches the first expected power at the first transmission rate after the power of the rate module at the first transmission rate is calibrated in a historical time period;

and saving the first calibration data when the calibration word difference is not less than a calibration word variation threshold.

11. The method of claim 10, further comprising:

saving the calibration word difference if the calibration word difference is less than the calibration word variation threshold.

12. A chip calibration apparatus, the apparatus comprising:

13. A computer device, characterized in that it comprises a processor and a memory for storing at least one piece of a computer program, which is loaded by the processor and which performs the chip calibration method according to any one of claims 1 to 11.

14. A computer-readable storage medium for storing at least one piece of a computer program for performing the chip calibration method of any one of claims 1 to 11.

15. A computer program product comprising a computer program, characterized in that the computer program, when executed by a processor, implements the chip calibration method according to any one of claims 1 to 11.