WO2011157119A1

WO2011157119A1 - Auto-configuration method and device for registers of chip

Info

Publication number: WO2011157119A1
Application number: PCT/CN2011/074951
Authority: WO
Inventors: 杨勇; 高峰鸣
Original assignee: 华为技术有限公司
Priority date: 2010-06-13
Filing date: 2011-05-31
Publication date: 2011-12-22
Also published as: CN102279727A

Abstract

A configuration method and device for registers of a chip are provided. The method mainly includes: after the chip is powered up or hard reset is completed, according to the acquired configuration number information, selecting a set of default configuration which meets the current operating status of the chip from several sets of preset default configurations, in which each set of preset default configuration is corresponding to a configuration number respectively; the chip configures the registers of the chip automatically according to the selected default configuration. By configuring several sets of different default configurations for the chip, the technical solution can complete the configuration of the registers quickly and automatically according to the several sets of different default configurations after the chip is powered up or the hard reset is completed.

Description

Method and apparatus for automatically configuring registers of a chip

The present application claims priority to Chinese Patent Application No. 201010204861.3, entitled "Method and Apparatus for Automatic Configuration of Registers of Chips", which is filed on June 13, 2010, the entire contents of which are incorporated by reference. In this application.

Technical field

The present invention relates to the field of electronic technologies, and in particular, to a method and apparatus for automatically configuring registers of a chip.

Background technique

After the chip in the electronic device is powered on or after the hard reset is completed, the values of all the internal registers will be restored to a set value. If the value set above cannot satisfy the current working state of the chip, the electronic device The CPU needs to change the value of the register in the chip according to the current working state of the above chip.

A method for configuring a register of a chip in the prior art is: after the chip is powered on or after the hard reset is completed, the CPU of the electronic device configures the values of all the registers in the chip to a required default value.

In the process of implementing the present invention, the inventors have found that the above method for configuring a register of a chip in the prior art has at least the following problem: since an electronic device includes many chips, each chip includes many registers, and thus, the CPU It takes a lot of time and resources to complete the configuration of the registers in the chip, and the startup process of the chip takes a long time.

Summary of the invention

Embodiments of the present invention provide a method and apparatus for automatically configuring registers of a chip to reduce the amount of work required by the CPU to configure registers of the chip.

A method for automatically configuring a register of a chip, including:

After the power-on or hard reset of the chip is completed, a set of default configurations that meet the current working state of the chip are selected according to the obtained configuration number information, wherein each preset default configuration corresponds to one configuration. number;

The chip automatically configures the registers of the chip according to the selected default configuration.

A device for configuring a register of a chip, comprising:

The default configuration acquisition module is configured to select, according to the obtained configuration number information, a set of default configurations that meet the current working state of the chip according to the obtained configuration number information, wherein each set of pre-settings is configured according to the obtained configuration number information. Set the default configuration to correspond to a configuration number;

The register configuration module is configured to configure a register of the chip according to the default configuration selected by the default configuration acquisition module.

As can be seen from the technical solution provided by the foregoing embodiments of the present invention, the embodiment of the present invention can configure multiple different default configurations for the chip, so that after the chip is powered on or after the hard reset is completed, the multiple defaults can be determined according to the foregoing multiple sets. Configure the configuration of the fast auto-complete register.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention, Those skilled in the art can also obtain other drawings based on these drawings without paying for creative labor.

1 is a process flow diagram of a method for automatically configuring a register of a chip according to Embodiment 1;

FIG. 2 is a structural diagram of an apparatus for automatically configuring a register of a chip according to an embodiment of the present invention.

detailed description

In the embodiment of the present invention, the chip in the electronic device selects a set of default configurations from multiple sets of different default configurations according to the obtained configuration number information. The registers of the chip are then configured in accordance with the selected default configuration.

In the following, in order to facilitate the understanding of the embodiments of the present invention, the embodiments of the present invention are not to be construed as limited.

Embodiment 1

The processing flow of the method for automatically configuring the registers of the chip provided by this embodiment is as shown in FIG. 1 , and includes the following steps:

Step 11: Pre-configure the chip with multiple different default configurations.

In the embodiment of the present invention, each set of different preset default configurations is configured for each chip according to different working states of the chips in the electronic device, and the preset default configuration may include at least one set of user-defined configurations. The plurality of different preset default configurations may be configured by the CPU of the electronic device according to default values of respective registers in different working states of the chip, and each set of default configurations may set a uniform default value for all registers in the chip. It is also possible to set different default values for each register. The above user-defined configuration is set by the user through the CPU of the electronic device as needed.

Each set of default configurations corresponds to a configuration number, and all preset default configurations and their configuration numbers are stored in non-volatile memory in the chip. The user-defined configuration can be saved in the editable non-in-chip. In the volatile memory, in actual applications, the user can modify the user-defined configuration through the CPU at any time.

Step 12: After the chip is powered on or after the hard reset is completed, select a default configuration from the plurality of preset default configurations that can satisfy the current working state of the chip, and select each register in the chip according to the selected default configuration. Configure it.

After the chip is powered on or after the hard reset is completed, the chip obtains the plurality of preset default configurations configured for the chip, and selects a default configuration that satisfies the current working state of the chip from the plurality of preset default configurations. The selected default configuration is loaded into an internal register, ie each register in the chip is configured according to a default set of values in the selected default configuration.

The chip selects a set of default configurations from the above multiple preset default configurations, including the following two methods:

The first method: the CPU transmits the specified configuration number information to the chip through the CPU interface of the chip, and the chip reads a set from the preset default configuration in the internal non-volatile memory according to the specified configuration number information. default allocation.

The second method: the single board hardware connects the specified one or more hardware pins on the chip to the high and low levels, wherein the number of the hardware pins can be set according to actual needs. After the power is turned on or after the hard reset is completed, the chip can automatically read the high and low values connected by the specified hardware pins, and match the value of the high and low levels to a configuration number according to the configuration number information. A set of default configurations is selected from a plurality of different preset default configurations saved in the chip's memory.

If the preset multiple sets of default configurations configured for the chip fail to satisfy the current working state of the chip, the CPU transmits a set of user-specified configuration information to the chip through the CPU interface of the chip, and the chip is configured according to the configuration information specified by the user. Each register is configured with a corresponding specified value. Then, the above new user-specified configuration and corresponding configuration number are saved in the non-volatile memory of the chip.

In this embodiment, by configuring a plurality of different preset default configurations for the chip, the configuration of the register can be quickly and automatically completed according to the multiple sets of different default configurations after the chip is powered on or after the hard reset is completed.

The embodiment of the present invention further provides a device for automatically configuring a register of a chip, and the device is disposed in a chip, and the specific implementation structure is as shown in FIG. 2, which may specifically include:

The default configuration obtaining module 22 is configured to select, according to the obtained configuration number information, a set of default configurations that meet the current working state of the chip according to the obtained configuration number information, where each set is obtained. The default default configuration corresponds to a configuration number;

The register configuration module 23 is configured to configure a register of the chip according to the default configuration selected by the default configuration acquisition module.

The device further includes:

The default configuration saving module 21 is configured to save a plurality of different pre-default configurations pre-configured to the chip and a configuration number of each preset default configuration, where the multiple preset default configurations include at least one set of user-defined configurations. And can be written by the user as needed; the default configuration save module includes an editable non-volatile memory for saving the at least one set of user-defined configurations, and each set of default settings is given to the chip All registers are set to a uniform default value or different default values are set for each register in the chip.

The default configuration obtaining module 22 includes at least one of the first obtaining module 221 and the second obtaining module 222.

The first obtaining module 221 is configured to: after the chip is powered on or after the hard reset is completed, the chip receives the specified configuration number information sent by the central processing unit in the electronic device, and uses the specified configuration number information from the chip. Select a default configuration from among the different sets of default configurations saved in the memory;

The second obtaining module 222 is configured to read, after the chip is powered on or after the hard reset is completed, the chip reads a high and low value connected by a specified number of hardware pins on the chip, according to the height The value of the level is matched to a configuration number, and a set of default configurations is selected from a plurality of different default configurations saved in the memory of the chip according to the configuration number information.

One of ordinary skill in the art can understand that all or part of the process of implementing the foregoing embodiments can be completed by a computer program to instruct related hardware, and the program can be stored in a computer readable storage medium. When executed, the flow of an embodiment of the methods as described above may be included. The storage medium may be a magnetic disk, an optical disk, or a read-only storage memory (Read-Only) Memory, ROM) or Random Access Memory (RAM).

In summary, in the embodiment of the present invention, by configuring multiple sets of different default configurations for the chip, the configuration of the register can be quickly and automatically completed according to the multiple sets of different default configurations after the chip is powered on or after the hard reset is completed.

The embodiment of the invention can save the custom configuration set by the user, and can enable the chip to complete the configuration of the chip register when the CPU of the electronic device does not participate or participate in a small amount, thereby reducing the occupation time of the CPU. Fast configuration of the chip to complete the fast start of the board.

The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or within the technical scope disclosed by the present invention. Alternatives are intended to be covered by the scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

A method for automatically configuring a register of a chip, comprising:

After the power-on or hard reset of the chip is completed, a set of default configurations that meet the current working state of the chip are selected according to the obtained configuration number information, wherein each preset default configuration corresponds to one configuration. number;

The chip automatically configures the registers of the chip according to the selected default configuration.
The method for configuring a register of a chip according to claim 1, wherein the selecting a set of default configurations from the plurality of different default configurations further comprises:

The chip is pre-configured with a plurality of different preset default configurations, and all the default configurations and their configuration numbers are correspondingly stored in the memory inside the chip.
The method for configuring a register of a chip according to claim 2, wherein the plurality of preset default configurations comprise at least one set of user-defined configurations, and the at least one set of user-defined configurations are saved in an editable manner. In non-volatile memory, and it is written by the user as needed.
The method for configuring a register of a chip according to claim 2, wherein after the power-on or hard reset is completed, the set is selected from a plurality of preset default configurations according to the obtained configuration number information. The default configuration that satisfies the current working state of the chip, including:

After the chip is powered on or after the hard reset is completed, the chip receives the specified configuration number information sent by the central processing unit in the electronic device, and saves multiple sets of different presets from the memory of the chip according to the specified configuration number information. In the default configuration, a set of default configurations that match the configuration number information is selected.
The method for configuring a register of a chip according to claim 2, wherein after the power-on or hard reset is completed, the set is selected from a plurality of preset default configurations according to the obtained configuration number information. The default configuration that satisfies the current working state of the chip, including:

After the chip is powered on or after the hard reset is completed, the chip reads the high and low values connected by the specified number of hardware pins on the chip, and matches the configuration value according to the high and low values, according to The configuration number information selects a default configuration from a plurality of different preset default configurations saved in the memory of the chip.
The method for configuring a register of a chip according to any one of claims 1 to 5, wherein the chip configures a register of the chip according to the selected default configuration, including:

The chip acquires default values of respective registers included in the selected default configuration, and configures values of respective registers in the chip according to the default values.
The method of configuring a register of a chip according to claim 1, wherein the method further comprises:

If the plurality of different preset default configurations saved in the memory of the chip fail to satisfy the current working state of the chip, the chip sends a configuration update message to the central processor in the electronic device;

Receiving, by the chip, a new default configuration sent by the central processing unit, configuring each register in the chip according to the new default configuration, and saving the new default configuration and corresponding configuration number in a memory of the chip .
An apparatus for configuring a register of a chip, comprising:

The default configuration acquisition module is configured to select, according to the obtained configuration number information, a set of default configurations that meet the current working state of the chip according to the obtained configuration number information, wherein each set of pre-settings is configured according to the obtained configuration number information. Set the default configuration to correspond to a configuration number;

The register configuration module is configured to configure a register of the chip according to the default configuration selected by the default configuration acquisition module.
The device for configuring a register of a chip according to claim 8, wherein the device further comprises:

The default configuration save module is configured to save a plurality of different preset default configurations pre-configured by the chip and a configuration number of each preset default configuration, wherein the multiple preset default configurations include at least one set of user-defined configurations. And it is written by the user as needed; the default configuration save module includes an editable non-volatile memory for saving the at least one set of user-defined configurations.
The apparatus for configuring a register of a chip according to claim 8 or 9, wherein the default configuration acquisition module comprises: at least one of a first acquisition module and a second acquisition module.

The first obtaining module is configured to: after the chip is powered on or after the hard reset is completed, the chip receives the specified configuration number information sent by the central processing unit in the electronic device, according to the specified configuration number information, from the chip Select a default configuration from multiple different default configurations saved in memory;

The second obtaining module is configured to read, after the chip is powered on or after the hard reset is completed, the chip reads a high and low value connected by a specified number of hardware pins on the chip, according to the high and low voltage The flat value is matched to a configuration number, and a set of default configurations is selected from a plurality of different default configurations saved in the memory of the chip according to the configuration number information.