CN115705215A - eMMC starting method, device, equipment and storage medium - Google Patents

Abstract

The invention discloses a method, a device, equipment and a storage medium for starting eMMC, wherein the method comprises the following steps: the master controller controls a target eMMC to perform initial starting in a forced starting mode; if the target eMMC fails to start, adjusting sampling time sequence parameters of the main controller, and sending a starting command to the target eMMC by the main controller to restart the target eMMC; if the master controller receives the boot data within the preset time interval, acquiring a plurality of boot data output by the target eMMC according to the adjusted sampling time sequence parameters; the master controller verifies the collected boot data, and determines a starting result of the target eMMC according to a verification result until the target eMMC is successfully started. The technical scheme of the embodiment of the invention can reduce the loss caused by the scrapping of the eMMC product, and the starting mode of the eMMC is more flexible.

Description

A startup method, device, equipment and storage medium of eMMC

technical field

Embodiments of the present invention relate to the field of computer technology, and in particular, to an eMMC startup method, device, device, and storage medium.

Background technique

Currently, an embedded multimedia controller (Embedded Multi Media Card, eMMC) is usually started in a mandatory boot (Mandatory Boot) manner. That is, after the main controller (such as the HOST controller) is powered on, it first pulls down the command (Command, CMD) signal; when the eMMC detects that the CMD signal is low, if the working mode of the eMMC is the pre-idle mode, then Automatically output the data in the boot area; the main controller detects and collects the boot data to realize eMMC startup.

Among them, after the main controller pulls down the CMD signal, if the working mode of the eMMC is pre-idle mode, the eMMC will output boot data within 1s, and then output multiple boot data continuously. If it is detected that the main controller pulls up the CMD signal, data output is stopped. During the process of eMMC outputting boot data, the main controller will sample the boot data according to the fixed sampling timing parameters. If the boot data collected by the main controller reaches the preset data volume, the main controller will pull up the CMD signal to end the process of forced startup. After that, the main controller will check the multiple boot data collected. If multiple boot data pass the check, it is considered that the eMMC is started successfully, and the next step is performed on the eMMC (such as reading and writing to the eMMC operation, etc.); if there is boot data that fails to pass the verification, it is considered that the eMMC failed to start.

However, when the main controller collects boot data according to a fixed sampling clock, it is very likely to collect wrong data. Figure 1a is a schematic diagram of the sampling of boot data by the main controller. As shown in Figure 1a, the boot data output by eMMC are DATA0, DATA1...DATAn. Taking DATA0 as an example, when the sampling time of the main controller to eMMC falls within the sampling time window corresponding to the boot data, the correct data can be sampled. When the sampling time of the eMMC by the main controller falls outside the sampling time window, there is a high probability that wrong data will be collected. In this case, it is considered that the eMMC failed to start.

In the prior art, the sampling timing parameters configured by the main controller are fixed, but the timing parameters of eMMC chips from different manufacturers are different. If the current eMMC fails to start using the forced startup method, the main controller will start the next eMMC again until it finds an eMMC whose timing parameters match the sampling timing parameters of the main controller, which may easily cause the loss of eMMC product scrapping.

Contents of the invention

Embodiments of the present invention provide an eMMC startup method, device, equipment, and storage medium, which can reduce losses caused by scrapped eMMC products and make the eMMC startup mode more flexible.

In a first aspect, an embodiment of the present invention provides a method for starting an eMMC, the method comprising:

Control the target embedded multimedia controller eMMC to start for the first time through the main controller using forced startup;

If it is determined that the target eMMC fails to start initially, adjust the sampling timing parameters corresponding to the main controller, and send a preset start command to the target eMMC through the main controller, so that the target eMMC according to The start command is used to start again;

If the main controller receives the boot data output by the target eMMC within the preset time interval, then collect a plurality of boot data output by the target eMMC according to the adjusted sampling timing parameters;

When determining that the target eMMC ends the output of the boot data by the main controller, a plurality of boot data collected is verified, and the startup result of the target eMMC is determined according to the verification result until it is determined that the target eMMC starts successfully.

In the second aspect, the embodiment of the present invention also provides an eMMC startup device, which includes:

The initial startup module is used to control the target eMMC to start for the first time through the main controller in a forced startup mode;

A parameter adjustment module, configured to adjust the sampling timing parameters corresponding to the main controller if it is determined that the target eMMC fails to start initially, and send a preset startup command to the target eMMC through the main controller to Make the target eMMC restart according to the startup command;

The acquisition module is used to collect a plurality of boot data output by the target eMMC according to the adjusted sampling timing parameters if the main controller receives the boot data output by the target eMMC within a preset time interval;

The verification module is used to verify the multiple boot data collected when the main controller determines that the target eMMC ends the output of the boot data, and determine the startup result of the target eMMC according to the verification result until the target is determined eMMC started successfully.

In a third aspect, an embodiment of the present invention also provides a computer device, which includes:

one or more processors;

storage means for storing one or more programs;

When the one or more programs are executed by the one or more processors, the one or more processors are made to implement an eMMC startup method provided in any embodiment of the present invention.

In a fourth aspect, an embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, an eMMC startup method provided in any embodiment of the present invention is implemented.

In the technical solution of the embodiment of the present invention, the main controller adopts a forced start mode to control the target eMMC to start for the first time. If it is determined that the target eMMC fails to start for the first time, then adjust the sampling timing parameters corresponding to the main controller, and report to the main controller through the main controller. The target eMMC sends a startup command so that the target eMMC starts again according to the startup command. If the main controller receives the boot data output by the target eMMC within the preset time interval, it will output the target eMMC according to the adjusted sampling timing parameters. Multiple boot data are collected, and finally the main controller determines that when the target eMMC finishes outputting the boot data, the multiple boot data collected are verified, and the startup result of the target eMMC is determined according to the verification results until the target is determined The technical means of successful eMMC startup can avoid wasting a large amount of eMMC, reduce the loss caused by the scrapping of eMMC products, and make the startup method of eMMC more flexible.

Description of drawings

Fig. 1a is a schematic diagram of sampling boot data by a master controller in an embodiment of the present invention;

Fig. 1b is a flowchart of a method for starting an eMMC in Embodiment 1 of the present invention;

Fig. 2a is a flowchart of a method for starting an eMMC in Embodiment 2 of the present invention;

Fig. 2b is a flow chart of another eMMC startup method in Embodiment 2 of the present invention;

Fig. 3 is a structural diagram of a starting device of an eMMC in Embodiment 3 of the present invention;

FIG. 4 is a schematic structural diagram of a computer device in Embodiment 4 of the present invention.

Detailed ways

The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

Embodiment one

Figure 1b is a flow chart of a method for starting eMMC provided by Embodiment 1 of the present invention. This embodiment is applicable to the case where the main controller starts eMMC, and the method can be executed by a starting device for eMMC, which can be It is implemented by software and/or hardware, and generally can be integrated in a computer device with data processing functions, such as a terminal device or a server, and specifically includes the following steps:

Step 110 : Control the target embedded multimedia controller eMMC to start up for the first time by means of forced startup by the main controller.

In this embodiment, the master controller may be a control device capable of data processing and centralized control, and is used to control the eMMC to start. Wherein, the main controller may control the target eMMC to start in a manner of mandatory boot (Mandatory Boot).

In a specific embodiment, controlling the target eMMC to start for the first time through the main controller adopts a forced startup method, including: powering on the main controller, and pulling down the preset hardware through the main controller signal, so that the target eMMC outputs boot data according to the hardware signal.

Wherein, the main controller may be powered on through a power supply. After the main controller is powered on, a certain hardware signal between the main controller and the target eMMC can be pulled down. After the target eMMC detects that the hardware signal is pulled low, if the working mode of the target eMMC is a pre-idle mode, it can automatically output boot data.

Step 120, if it is determined that the target eMMC fails to start initially, adjust the sampling timing parameters corresponding to the main controller, and send a preset startup command to the target eMMC through the main controller, so that the The target eMMC starts again according to the startup command.

In this embodiment, optionally, if the target eMMC detects that the hardware signal is pulled low and does not output boot data, that is, when the main controller does not receive the boot data output by the target eMMC, it can be determined that the target eMMC Initial startup failed.

In a specific embodiment, determining that the target eMMC fails to start initially includes: if the main controller does not receive the boot data output by the target eMMC during the initial start process within a preset time interval, then determine that the target eMMC fails to start initially. The initial startup of the target eMMC fails; or, if the main controller determines that the boot data output by the target eMMC has not passed the verification, then it is determined that the initial startup of the target eMMC fails.

Wherein, after the main controller pulls down the hardware signal, if the boot data output by the target eMMC during the initial startup process is not received within a preset time interval, it can be determined that the target eMMC fails to start initially. Specifically, after the main controller pulls down the hardware signal, a timer can be configured. If the boot data output by the target eMMC during the initial startup process is not received within the time specified by the timer, it can be determined The target eMMC failed to start initially. The duration may be 1s, and the specific value is preset according to the actual situation, which is not limited in this embodiment.

In this embodiment, after the main controller pulls down the hardware signal, if it receives the boot data output by the target eMMC during the initial startup process within a preset time interval, it can The timing parameter collects multiple boot data output by the target eMMC, and after the collection is completed, performs a cyclic redundancy check (Cyclic Redundancy Check, CRC) on the multiple boot data collected. If there are one or more boot If the data does not pass the CRC check (that is, the check fails), it can be determined that the target eMMC fails to start initially.

In a specific embodiment, each boot data output by the eMMC is composed of a data frame and a CRC check code. After the main controller collects the boot data, it can perform CRC calculation on the data frame in each boot data, and the The calculation result is compared with the CRC check code in the boot data, and if the calculation result is consistent with the CRC check code, it can be determined that the boot data passes the CRC check.

In practical applications, after the eMMC fails to start for the first time, even if the main controller continues to pull down the hardware signal, the eMMC will not output boot data according to the hardware signal. Therefore, in the prior art, after the eMMC fails to start for the first time, the main controller will start the next eMMC again in a forced start mode until it finds an eMMC whose timing parameters match the sampling timing parameters of the main controller, that is, finds an eMMC that starts successfully. eMMC, such an approach will waste a lot of eMMC, resulting in low utilization of eMMC.

In order to solve the above problems, this embodiment proposes an implementation manner in which the main controller adopts an alternative boot (Alternative Boot) mode to control the eMMC to start again after the eMMC fails to start initially. Among them, in order to prevent the main controller from collecting wrong boot data, the main controller can adjust the currently configured sampling timing parameters, and then control the eMMC to start again by using an alternative startup method. The specific process is: the main controller sends a preset startup command to the target eMMC, and the target eMMC outputs boot data after receiving the startup command.

In a specific embodiment, when adjusting the sampling timing parameters currently configured by the main controller, the phase relationship between the clock edge of the main controller and the sampling time window corresponding to the boot data can be adjusted, or the Adjust the sampling clock.

Step 130, if the main controller receives the boot data output by the target eMMC within a preset time interval, collect a plurality of boot data output by the target eMMC according to the adjusted sampling timing parameters.

In a specific embodiment, after the main controller sends the start command to the target eMMC, a timer can be configured, and if the boot data output by the target eMMC is received within the time specified by the timer, the adjusted Sampling timing parameters to collect multiple boot data output by the target eMMC. The duration may be 1s, and the specific value is preset according to the actual situation, which is not limited in this embodiment.

Wherein, if the main controller does not receive the boot data output by the target eMMC within the time interval, the operation of step 120 may be returned until the main controller receives the boot data output by the target eMMC within the time interval .

Step 140, when the main controller determines that the target eMMC finishes outputting the boot data, check the multiple boot data collected, and determine the start result of the target eMMC according to the check result until it is determined that the target eMMC starts successfully .

In a specific embodiment, if the target eMMC finishes outputting the boot data, the main controller can perform CRC checks on the multiple boot data collected, and if there is one or more boot data that have not passed the CRC check, Then it may be determined that the target eMMC fails to start again, and return to the operation of step 120 until it is determined that the target eMMC starts successfully.

In this embodiment, when starting the eMMC, the main controller usually adopts a default starting mode (ie, a forced starting mode) to control the target eMMC to start up for the first time. If the startup fails, the main controller will adjust the corresponding sampling timing parameters, and then use an alternative startup method to control the target eMMC to start again. In this embodiment, by combining the mandatory startup mode with the alternative startup mode, on the one hand, it can avoid wasting a large amount of eMMCs and reduce the loss caused by scrapped eMMC products; on the other hand, it can make the startup mode of the eMMC more flexible.

In the technical solution of the embodiment of the present invention, the main controller adopts a forced start mode to control the target eMMC to start for the first time. If it is determined that the target eMMC fails to start for the first time, then adjust the sampling timing parameters corresponding to the main controller, and report to the main controller through the main controller. The target eMMC sends a startup command so that the target eMMC starts again according to the startup command. If the main controller receives the boot data output by the target eMMC within the preset time interval, it will output the target eMMC according to the adjusted sampling timing parameters. Multiple boot data are collected, and finally the main controller determines that when the target eMMC finishes outputting the boot data, the multiple boot data collected are verified, and the startup result of the target eMMC is determined according to the verification results until the target is determined The technical means of successful eMMC startup can avoid wasting a large amount of eMMC, reduce the loss caused by the scrapping of eMMC products, and make the startup method of eMMC more flexible.

Embodiment two

This embodiment is a further refinement of the foregoing embodiments, and explanations of terms that are the same as or corresponding to those of the foregoing embodiments will not be repeated in this embodiment. Figure 2a is a flow chart of an eMMC startup method provided in Embodiment 2. In this embodiment, the technical solution of this embodiment can be combined with one or more methods in the solutions of the above embodiments, such as As shown in Figure 2a, the method provided in this embodiment may also include:

Step 210 : Control the target embedded multimedia controller eMMC to start up for the first time by means of forced startup by the main controller.

Step 220, if it is determined that the target eMMC fails to start initially, adjust the sampling timing parameters corresponding to the main controller.

Step 230, sending a reset command to the target eMMC through the main controller, so that the target eMMC is reset according to the reset command.

In a specific embodiment, the reset command may be 0x00000000.

Step 240: Send a mode setting command to the target eMMC through the main controller, so that the target eMMC sets the current working mode as the waiting mode according to the mode setting command.

In a specific embodiment, the mode setting command may be 0xF0F0F0F0. The pre-idle mode refers to a working mode in which the target eMMC can enter the startup mode.

Step 250, sending a data transmission command to the target eMMC through the main controller, so that the target eMMC outputs a plurality of boot data according to the data transmission command.

In a specific embodiment, the data transmission command may be 0xFFFFFFFA.

Step 260, if the main controller receives the boot data output by the target eMMC within the preset time interval, collect multiple boot data output by the target eMMC according to the adjusted sampling timing parameters.

Step 270, when the main controller determines that the target eMMC finishes outputting the boot data, verify the multiple boot data collected, and determine the startup result of the target eMMC according to the verification result until it is determined that the target eMMC starts successfully .

In an implementation manner of this embodiment, determining by the main controller that the target eMMC finishes outputting the boot data includes: judging by the main controller whether the quantity of multiple boot data collected is equal to a preset value; If so, send a preset reset command to the target eMMC through the main controller, so that the target eMMC is reset according to the reset command.

Wherein, if the quantity of a plurality of boot data collected by the main controller is equal to a preset value, the main controller sends a reset command (0x00000000) to the target eMMC, and after receiving the reset command, the target eMMC proceeds according to the reset command. Reset, and end the output of boot data.

In one implementation of this embodiment, the plurality of boot data collected is verified by the main controller, and the startup result of the target eMMC is determined according to the verification result until it is determined that the startup of the target eMMC is successful, including: passing The main controller checks the multiple boot data collected, and if each boot data passes the check, it determines that the target eMMC starts successfully; if there is at least one boot data that does not pass the check, then it determines that the target eMMC starts Fail, and return to the operation of adjusting the sampling timing parameters corresponding to the main controller, and sending a preset start command to the target eMMC through the main controller, until it is determined that the target eMMC starts successfully.

In the forced boot mode, eMMC will output boot data only when it detects that the main controller pulls down the hardware signal and the working mode of eMMC is pre-idle. If eMMC finishes outputting boot data, eMMC will leave pre-idle mode. In this case, if the main controller wants to obtain the boot data in the target eMMC again, the forced start method cannot support the eMMC to output the boot data.

In order to solve the above problems, this embodiment proposes an embodiment in which the eMMC is controlled to output the boot data again by using an alternative startup mode through the main controller after the eMMC finishes outputting the boot data.

In an implementation manner of this embodiment, after determining that the target eMMC is started successfully, it further includes: if the main controller needs to obtain the boot data in the target eMMC again, then return execution to the The target eMMC sends a preset boot command until each boot data collected by the main controller passes the verification.

Wherein, no matter what working mode the target eMMC is in, the main controller can send a startup command to the target eMMC, so that the target eMMC outputs boot data.

Therefore, after the eMMC finishes outputting the boot data, the main controller adopts an alternative startup method to control the eMMC to output the boot data again, which can meet the requirement of the main controller to obtain the boot data multiple times.

In the technical solution of the embodiment of the present invention, the main controller adopts a forced start mode to control the target eMMC to start for the first time. If it is determined that the target eMMC fails to start for the first time, then adjust the sampling timing parameters corresponding to the main controller, and send the target eMMC to the target through the main controller. The eMMC sends a reset command, a mode setting command, and a data transmission command to make the target eMMC output multiple boot data. If the host controller receives the boot data output by the target eMMC within a preset time interval, according to the adjusted sampling timing parameters , to collect multiple boot data output by the target eMMC, and finally, when the main controller determines that the target eMMC finishes outputting the boot data, verify the multiple collected boot data, and determine the target eMMC according to the verification result Starting results, until the technical means of determining the successful start of the target eMMC can avoid wasting a large amount of eMMC, reduce the loss caused by the scrapping of eMMC products, and make the starting method of eMMC more flexible.

In order to better introduce the technical solutions provided by the embodiments of the present invention, the embodiments of the present invention can refer to the following implementation manners, as shown in Figure 2b:

Step 1: Control the target eMMC to start up for the first time through the main controller by means of forced startup;

Step 2: Whether the main controller receives the boot data output by the target eMMC within the preset time interval, if yes, perform step 3; if not, perform step 9.

Step 3: The main controller collects multiple boot data output by the target eMMC according to the currently configured sampling timing parameters.

Step 4: Whether the number of multiple boot data collected by the main controller is equal to the preset value, if yes, execute step 5, if not, return to execute step 3.

Step 5: The main controller pulls up a preset hardware signal so that the target eMMC stops outputting boot data.

Step 6: The main controller judges whether the multiple boot data collected pass the CRC check, if yes, execute step 7; if not, execute step 9.

Step 7: The target eMMC exits the pre-idle mode and enters the readable and writable mode, and the main controller performs read and write operations on the target eMMC.

Step 8: The main controller determines whether to obtain the boot data again, if yes, execute step 10; if not, return to execute the operation of reading and writing the target eMMC in step 7.

Step 9: Adjust the current sampling timing parameters corresponding to the main controller.

Step 10: The main controller sends a preset startup command to the target eMMC, and the main controller controls the startup of the target eMMC in an alternative startup mode.

Step 11: Whether the main controller receives the boot data output by the target eMMC within the preset time interval, if yes, execute step 12, if not, return to execute step 9.

Step 12: The main controller collects multiple boot data output by the target eMMC according to the adjusted sampling timing parameters.

Step 13: Whether the number of multiple boot data collected by the main controller is equal to the preset value, if yes, execute step 14, if not, return to execute step 12.

Step 14: The main controller sends a reset command to the target eMMC, so that the target eMMC is reset according to the reset command, stops outputting boot data, and ends the alternative boot mode.

Step 15: The main controller judges whether the multiple boot data collected pass the CRC check, if yes, execute step 16; if not, return to execute step 9.

Step 16: The target eMMC exits the pre-idle mode and enters the readable and writable mode, and the main controller performs read and write operations on the target eMMC.

Step 17: The main controller determines whether the boot data needs to be acquired again, if yes, execute step 10; if not, return to execute the operation of reading and writing the target eMMC in step 16.

The method provided by the embodiment of the present invention can avoid wasting a large amount of eMMCs, reduce the loss caused by scrapped eMMC products, and make the startup mode of eMMCs more flexible.

Embodiment Three

FIG. 3 is a structural diagram of an eMMC start-up device provided by Embodiment 3 of the present invention. The device includes: an initial start-up module 310 , a parameter adjustment module 320 , an acquisition module 330 and a verification module 340 .

Wherein, the initial startup module 310 is used to control the target eMMC to start for the first time by adopting a forced startup mode through the main controller;

The parameter adjustment module 320 is used to adjust the sampling timing parameters corresponding to the main controller if it is determined that the target eMMC fails to start initially, and send a preset startup command to the target eMMC through the main controller, To make the target eMMC restart according to the startup command;

The acquisition module 330 is used to collect a plurality of boot data output by the target eMMC according to the adjusted sampling timing parameters if the main controller receives the boot data output by the target eMMC within a preset time interval;

The check module 340 is used to check the multiple boot data collected when the main controller determines that the target eMMC finishes outputting the boot data, and determines the startup result of the target eMMC according to the check result until it is determined Target eMMC started successfully.

In the technical solution of the embodiment of the present invention, the main controller adopts a forced start mode to control the target eMMC to start for the first time. If it is determined that the target eMMC fails to start for the first time, then adjust the sampling timing parameters corresponding to the main controller, and report to the main controller through the main controller. The target eMMC sends a startup command so that the target eMMC starts again according to the startup command. If the main controller receives the boot data output by the target eMMC within the preset time interval, it will output the target eMMC according to the adjusted sampling timing parameters. Multiple boot data are collected, and finally the main controller determines that when the target eMMC finishes outputting the boot data, the multiple boot data collected are verified, and the startup result of the target eMMC is determined according to the verification results until the target is determined The technical means of successful eMMC startup can avoid wasting a large amount of eMMC, reduce the loss caused by the scrapping of eMMC products, and make the startup method of eMMC more flexible.

On the basis of the above-mentioned embodiments, the initial start-up module 310 may include:

The main controller power-on unit is configured to power on the main controller, and pull down a preset hardware signal through the main controller, so that the target eMMC outputs boot data according to the hardware signal.

The parameter adjustment module 320 may include:

The first startup result determining unit is used to determine that the target eMMC fails to start initially if the main controller does not receive the boot data output by the target eMMC during the initial startup process within a preset time interval;

The second startup result determination unit is used to determine that the target eMMC fails to start initially if the main controller determines that the boot data output by the target eMMC has not passed the verification;

A first reset command sending unit, configured to send a reset command to the target eMMC through the main controller, so that the target eMMC is reset according to the reset command;

A setting command sending unit is used to send a mode setting command to the target eMMC through the main controller, so that the target eMMC sets the current working mode as a mode to be started according to the mode setting command;

A transmission command sending unit, configured to send a data transmission command to the target eMMC through the main controller, so that the target eMMC outputs a plurality of boot data according to the data transmission command.

The verification module 340 may include:

Quantity judging unit, used for judging whether the quantity of multiple boot data collected by the main controller is equal to a preset value;

The second reset command sending unit is used to send a preset reset command to the target eMMC through the main controller when the number of multiple boot data collected by the main controller is equal to a preset value, so that the target eMMC resets according to the reset command;

A plurality of boot data verification units are used to verify a plurality of boot data collected by the main controller, and if each boot data passes the verification, it is determined that the target eMMC starts successfully;

Returning to the execution unit is used to determine that the target eMMC fails to start if there is at least one boot data that fails to pass the verification, and returns to execute and adjust the sampling timing parameters corresponding to the main controller, and send the target to the target through the main controller. The operation of eMMC sending a preset start command until it is determined that the target eMMC starts successfully;

The Boot data acquisition unit is used to return and perform sending preset information to the target eMMC through the main controller if the main controller needs to obtain the boot data in the target eMMC again after determining that the target eMMC starts successfully. Start the operation of the command until each boot data collected by the main controller passes the verification.

The eMMC booting device provided in the embodiment of the present invention can execute the eMMC booting method provided in any embodiment of the present invention, and has corresponding functional modules and beneficial effects for executing the method.

Embodiment Four

FIG. 4 is a schematic structural diagram of a computer device provided in Embodiment 4 of the present invention. As shown in FIG. 4 , the computer device includes a processor 410, a memory 420, an input device 430, and an output device 440; The quantity can be one or more, and a processor 410 is taken as an example in FIG. Take the bus connection as an example. Memory 420, as a computer-readable storage medium, can be used to store software programs, computer-executable programs and modules, such as program instructions/modules corresponding to an eMMC startup method in any embodiment of the present invention (for example, an eMMC The initial startup module 310, the parameter adjustment module 320, the acquisition module 330 and the verification module 340) in the startup device. The processor 410 executes various functional applications and data processing of the computer device by running software programs, instructions and modules stored in the memory 420 , that is, implements the above-mentioned eMMC startup method. That is, the program, when executed by the processor, achieves:

Control the target embedded multimedia controller eMMC to start for the first time through the main controller using forced startup;

If it is determined that the target eMMC fails to start initially, adjust the sampling timing parameters corresponding to the main controller, and send a preset start command to the target eMMC through the main controller, so that the target eMMC according to The start command is used to start again;

If the main controller receives the boot data output by the target eMMC within the preset time interval, then collect a plurality of boot data output by the target eMMC according to the adjusted sampling timing parameters;

When determining that the target eMMC ends the output of the boot data by the main controller, a plurality of boot data collected is verified, and the startup result of the target eMMC is determined according to the verification result until it is determined that the target eMMC starts successfully.

The memory 420 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system and an application program required by at least one function; the data storage area may store data created according to the use of the terminal, and the like. In addition, the memory 420 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage devices. In some examples, the memory 420 may further include memory located remotely from the processor 410, and these remote memories may be connected to the computer device through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof. The input device 430 can be used to receive input numbers or character information, and generate key signal input related to user settings and function control of the computer equipment, and may include a keyboard and a mouse. The output device 440 may include a display device such as a display screen.

Embodiment five

Embodiment 5 of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the program is executed by a processor, the method described in any embodiment of the present invention is implemented. Certainly, a computer-readable storage medium provided in an embodiment of the present invention can perform related operations in a method for starting an eMMC provided in any embodiment of the present invention. That is, the program, when executed by the processor, achieves:

Control the target embedded multimedia controller eMMC to start for the first time through the main controller using forced startup;

If it is determined that the target eMMC fails to start initially, adjust the sampling timing parameters corresponding to the main controller, and send a preset start command to the target eMMC through the main controller, so that the target eMMC according to The start command is used to start again;

If the main controller receives the boot data output by the target eMMC within the preset time interval, then collect a plurality of boot data output by the target eMMC according to the adjusted sampling timing parameters;

When determining that the target eMMC ends the output of the boot data by the main controller, a plurality of boot data collected is verified, and the startup result of the target eMMC is determined according to the verification result until it is determined that the target eMMC starts successfully.

Through the above description about the implementation mode, those skilled in the art can clearly understand that the present invention can be realized by means of software and necessary general-purpose hardware, and of course it can also be realized by hardware, but in many cases the former is a better implementation mode . Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as a floppy disk of a computer , read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or optical disc, etc., including several instructions to make a computer device (which can be a personal computer, A server, or a network device, etc.) executes the methods described in various embodiments of the present invention.

It is worth noting that, in the above-mentioned embodiment of an eMMC startup device, the included units and modules are only divided according to functional logic, but are not limited to the above-mentioned division, as long as the corresponding functions can be realized; In addition, the specific names of the functional units are only for the convenience of distinguishing each other, and are not used to limit the protection scope of the present invention.

Note that the above are only preferred embodiments of the present invention and applied technical principles. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present invention, and the present invention The scope is determined by the scope of the appended claims.

Claims (10)

1. A starting method of eMMC, characterized in that, comprising: Control the target embedded multimedia controller eMMC to start for the first time through the main controller using forced startup; If it is determined that the target eMMC fails to start initially, adjust the sampling timing parameters corresponding to the main controller, and send a preset start command to the target eMMC through the main controller, so that the target eMMC according to The start command is used to start again; If the main controller receives the boot data output by the target eMMC within the preset time interval, then collect a plurality of boot data output by the target eMMC according to the adjusted sampling timing parameters; When determining that the target eMMC ends the output of the boot data by the main controller, a plurality of boot data collected is verified, and the startup result of the target eMMC is determined according to the verification result until it is determined that the target eMMC starts successfully. 2. The method according to claim 1, characterized in that, controlling the target eMMC to start for the first time by means of a forced start by the main controller, including: Power on the main controller, and pull down a preset hardware signal through the main controller, so that the target eMMC outputs boot data according to the hardware signal. 3. The method according to claim 2, wherein determining that the target eMMC fails to start initially comprises: If the main controller does not receive the boot data output by the target eMMC during the initial startup process within the preset time interval, it is determined that the target eMMC fails to start initially; or, If the main controller determines that the boot data output by the target eMMC has not passed the verification, it determines that the target eMMC fails to start initially. 4. The method according to claim 1, wherein, the main controller sends a preset start command to the target eMMC, so that the target eMMC starts again according to the start command, including : Sending a reset command to the target eMMC through the main controller, so that the target eMMC is reset according to the reset command; Send a mode setting command to the target eMMC through the main controller, so that the target eMMC sets the current working mode as the waiting mode according to the mode setting command; Sending a data transmission command to the target eMMC through the main controller, so that the target eMMC outputs a plurality of boot data according to the data transmission command. 5. The method according to claim 1, wherein, determining by the main controller that the target eMMC finishes outputting the boot data includes: judging by the main controller whether the quantity of multiple boot data collected is equal to a preset value; If so, send a preset reset command to the target eMMC through the main controller, so that the target eMMC is reset according to the reset command. 6. The method according to claim 1, wherein the plurality of boot data collected is checked by the main controller, and the starting result of the target eMMC is determined according to the checking result until the target eMMC is determined to start success, including: A plurality of boot data collected is verified by the main controller, and if each boot data passes the verification, it is determined that the target eMMC starts successfully; If there is at least one boot data that does not pass the verification, then determine that the target eMMC fails to start, and return to execute the adjustment of the sampling timing parameters corresponding to the main controller, and send a preset start to the target eMMC through the main controller The operation of the command until it is determined that the target eMMC starts successfully. 7. The method according to claim 1, characterized in that, after determining that the target eMMC starts successfully, further comprising: If the main controller needs to obtain the boot data in the target eMMC again, return to the operation of sending a preset startup command to the target eMMC through the main controller until each boot data collected by the main controller The data are all verified. 8. A starting device for eMMC, characterized in that, comprising: The initial startup module is used to control the target eMMC to start for the first time through the main controller in a forced startup mode; A parameter adjustment module, configured to adjust the sampling timing parameters corresponding to the main controller if it is determined that the target eMMC fails to start initially, and send a preset startup command to the target eMMC through the main controller to Make the target eMMC restart according to the startup command; The acquisition module is used to collect a plurality of boot data output by the target eMMC according to the adjusted sampling timing parameters if the main controller receives the boot data output by the target eMMC within a preset time interval; The verification module is used to verify the multiple boot data collected when the main controller determines that the target eMMC ends the output of the boot data, and determine the startup result of the target eMMC according to the verification result until the target is determined eMMC started successfully. 9. A computer device comprising: one or more processors; storage means for storing one or more programs; When the one or more programs are executed by the one or more processors, so that the one or more processors execute the program, the eMMC startup method according to any one of claims 1-7 is realized . 10. A computer-readable storage medium, on which a computer program is stored, characterized in that, when the program is executed by a processor, the method for starting the eMMC according to any one of claims 1-7 is realized.

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