CN111857599A - Data reading and writing method, device and equipment and readable storage medium - Google Patents
Data reading and writing method, device and equipment and readable storage medium Download PDFInfo
- Publication number
- CN111857599A CN111857599A CN202010746836.1A CN202010746836A CN111857599A CN 111857599 A CN111857599 A CN 111857599A CN 202010746836 A CN202010746836 A CN 202010746836A CN 111857599 A CN111857599 A CN 111857599A
- Authority
- CN
- China
- Prior art keywords
- target memory
- target
- read
- command
- write
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
- G06F3/0614—Improving the reliability of storage systems
- G06F3/0619—Improving the reliability of storage systems in relation to data integrity, e.g. data losses, bit errors
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
- G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
- G06F3/0601—Interfaces specially adapted for storage systems
- G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
- G06F3/0671—In-line storage system
- G06F3/0673—Single storage device
- G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Computer Security & Cryptography (AREA)
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
The application discloses a data reading and writing method, which comprises the following steps: after sending the CMD7 command to the target memory, sending a query status command to the target memory; receiving current state information fed back by the target memory according to the query state command; and determining whether to send a target read-write command to the target memory according to the current state information so that the target memory performs data read-write operation according to the target read-write command. The method can avoid the situation that the target memory is processed wrongly because the target memory still sends the read-write command to the target memory when the target memory cannot respond to the read-write command, and improves the accuracy and the reliability of the target memory during data read-write operation. The application also discloses a data read-write device, equipment and a computer readable storage medium, which have the beneficial effects.
Description
Technical Field
The present invention relates to the field of data reading and writing, and in particular, to a data reading and writing method, apparatus, device, and computer-readable storage medium.
Background
At present, the SD card has the characteristics of small size, high memory capacity, fast data transmission rate, low cost, flexible movement and high safety, so that it can be more and more widely applied to products such as PCs, digital cameras, digital video cameras, mobile phones and the like.
When the SD controller controls the SD card to perform data read-write operation, firstly, when the SD card defaults to a stand-by state, the SD card is selected through a CMD7 command, so that the SD card enters a transfer state; then, a read-write command such as a single data read-write card (CMD17/CMD24), a multi-block data read-write card (CMD18/CMD25) and the like is sent to the SD card, and the SD card responds to the read-write command to realize data read-write operation. Specifically, when the SD card receives a write command, the SD card enters a program state, and data information corresponding to the write command is actually written into the flash from the internal cache of the SD card; the time corresponding to the data information after the program of different SD cards is different, and if the SD controller continues to send the read-write command to the SD card in the program state of the SD card, an error in processing the SD card will be caused, resulting in a data error or data loss, and the accuracy and reliability of reading and writing data by the SD card will be reduced.
Therefore, how to improve the accuracy and reliability of the memory in performing data read/write operations is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a data reading and writing method, which can improve the accuracy and reliability of a memory during data reading and writing operations; another object of the present invention is to provide a data reading/writing device, an apparatus and a computer readable storage medium, all having the above beneficial effects.
In order to solve the above technical problem, the present invention provides a data reading and writing method, including:
after sending the CMD7 command to the target memory, sending a query status command to the target memory;
receiving current state information fed back by the target memory according to the query state command;
and determining whether to send a target read-write command to the target memory according to the current state information so that the target memory performs data read-write operation according to the target read-write command.
Preferably, before the sending the query status command to the target storage, the method further comprises:
acquiring the current flow control state of the target memory through a preset flow control state register;
and when the current flow control state represents that the clock of the target memory is started, entering the step of sending a query state command to the target memory.
Preferably, after the determining whether to send the target read-write command to the target memory according to the current state information so that the target memory performs the data read-write operation according to the target read-write command, the method further includes:
and recording the sending time of sending the query state command to the target state register and the current state information corresponding to the query state command.
Preferably, after the target memory performs the data read-write operation according to the target read-write command, the method further includes:
and sending out corresponding prompt information.
Preferably, after the target memory performs the data read-write operation according to the target read-write command, the method further includes:
and updating and displaying the residual storage capacity of the target storage.
Preferably, further comprising:
and when the current flow control state represents that the clock of the target memory is turned off, the step of obtaining the current flow control state of the target memory through a preset flow control state register is carried out until the current flow control state represents that the clock of the target memory is turned on.
Preferably, the read-write command specifically includes:
single block card read commands, multiple block card read commands, single block card write commands, and multiple block card write commands.
In order to solve the above technical problem, the present invention further provides a data reading/writing apparatus, including:
the sending module is used for sending a query state command to the target memory after sending a CMD7 command to the target memory;
the receiving module is used for receiving the current state information fed back by the target memory according to the query state command;
and the determining module is used for determining whether to send a target read-write command to the target memory according to the current state information so that the target memory can carry out data read-write operation according to the target read-write command.
In order to solve the above technical problem, the present invention further provides a data reading and writing device, including:
a memory for storing a computer program;
and the processor is used for realizing the steps of any data reading and writing method when executing the computer program.
In order to solve the above technical problem, the present invention further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a processor, the computer program implements the steps of any of the above data reading and writing methods.
The invention provides a data read-write method, after sending CMD7 command to a target memory, before sending target read-write command to the target memory, firstly sending query state command to the target memory, and determining whether the target memory can respond to the sent target read-write command according to the current state information fed back by the target memory, thereby determining whether to send the target read-write command to the target memory according to the current state information.
In order to solve the technical problem, the invention also provides a data reading and writing device, equipment and a computer readable storage medium, which have the beneficial effects.
Drawings
In order to more clearly illustrate the embodiments or technical solutions of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a data read/write method according to an embodiment of the present invention;
fig. 2 is a structural diagram of a data reading/writing apparatus according to an embodiment of the present invention;
fig. 3 is a structural diagram of a data reading and writing device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The core of the embodiment of the invention is to provide a data reading and writing method which can improve the accuracy and reliability of a memory during data reading and writing operation; another core of the present invention is to provide a data reading/writing device, an apparatus and a computer readable storage medium, all having the above beneficial effects.
In order that those skilled in the art will better understand the disclosure, the invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a flowchart of a data read/write method according to an embodiment of the present invention. As shown in fig. 1, a data reading and writing method includes:
s10: after sending the CMD7 command to the target memory, sending a query status command to the target memory;
s20: receiving current state information fed back by the target memory according to the query state command;
s30: and determining whether to send a target read-write command to the target memory according to the current state information so that the target memory performs data read-write operation according to the target read-write command.
Specifically, in this embodiment, the target memory may be an SD Card, or may be other Card memories such as an SDIO (Secure Digital Input and Output) and an MMC (Multi-Media Card), which is not limited in this embodiment.
Specifically, in actual operation, after the SD controller sends a CMD7 command to the target memory, the target memory enters the transfer state from the stand-by state; at this time, if the SD controller is going to perform a read/write card operation, before sending the target read/write command to the target memory, the SD controller sends an inquiry status command (CMD13) to the target memory, and receives current status information correspondingly fed back by the target memory according to the inquiry status command.
Specifically, according to the SD protocol, the current state information includes the current state of the SD card, and whether the SD card can currently receive new data information can be determined according to the meaning represented by each bit in the current state information. For example, in the current status information returned according to the CMD13 command, bit8 indicates ready for data, i.e., whether the SD card buffer is empty, i.e., whether the SD card can receive new data information; if the bit value is 1, the SD card buffer is empty, and new data information can be received, namely a target read-write command can be sent to the SD card currently; if the bit value is 0, it indicates that the SD card buffer is not empty, new data information cannot be received, and a target read-write command cannot be sent to the SD card at present. At this time, the SD controller needs to repeatedly send a CMD13 command to the SD card until the bit value of bit8 in the returned current state information is 1.
It should be noted that when it is determined that a target read-write command can be currently sent to the target memory according to the current state information, the target read-write command is sent to the target memory, and after the target memory receives the target read-write command, data read-write operation is performed according to the target read-write command.
After sending the CMD7 command to the target memory, before sending the target read-write command to the target memory, the data read-write method provided by the embodiment of the invention firstly sends the query state command to the target memory, and determines whether the target memory can currently respond to the sent target read-write command according to the current state information fed back by the target memory, so as to determine whether to send the target read-write command to the target memory according to the current state information.
As a preferred implementation manner, in this embodiment, the target read-write command specifically includes:
single block card read commands, multiple block card read commands, single block card write commands, and multiple block card write commands.
In actual operation, a corresponding target read-write command can be sent to the target memory according to actual requirements, so that the target memory can perform read-write operation according to the target read-write command. It should be noted that, in this embodiment, the target read/write commands specifically include CMD17 (single block card read command), CMD18 (multi-block card read command), CMD24 (single block card write command), and CMD25 (multi-block card write command); that is to say, in this embodiment, not only a single card reading operation or a single card writing operation can be performed according to the target read-write command, but also a multi-block card reading operation or a multi-block card writing operation can be performed according to the target read-write command, thereby further improving the user experience.
On the basis of the foregoing embodiment, the present embodiment further describes and optimizes the technical solution, and specifically, before sending the query status command to the target memory, the present embodiment further includes:
acquiring the current flow control state of the target memory through a preset flow control state register;
and when the current flow control state indicates that the clock of the target memory is started, the step of sending a query state command to the target memory is entered.
As a preferred embodiment, the present embodiment further comprises:
and when the current flow control state represents that the clock of the target memory is turned off, the step of acquiring the current flow control state of the target memory through a preset flow control state register is carried out until the current flow control state represents that the clock of the target memory is turned on.
It should be noted that, in the card reading operation, when the SD card receives a read instruction, if the SD controller cannot upload data information in time through the bus after reading the data information from the SD card, the SD controller turns off the clock of the SD card according to the SD protocol to implement data flow control, and if the SD controller sends a target read-write command or an inquiry status command when the SD card is in the flow control state, the target read-write command or the inquiry status command is not issued to the SD card, thereby causing a timeout error and triggering a timeout fault handling process.
Therefore, in this embodiment, in order to ensure that the query status command can be correctly sent, before sending the query status command, the current flow control state of the target register is queried through the flow control status register. In this embodiment, a flow control state register is preset, and the flow control state register is used to store the current flow control state of the target memory acquired in real time. Specifically, the flow control state register updates the flow control state information of the SD card, that is, records that the current clock of the SD card is in an off state or an on state, and the flow control state register specifically uses the corresponding bit to represent the flow control state information of the SD card. If the value of the bit corresponding to the register is 0, the current SD card clock is not turned off, a query state command can be sent to the SD card, and if the value of the bit corresponding to the register is 1, the current SD card clock is turned off, the flow control state register needs to be queried repeatedly until the value of the bit corresponding to the register is queried to be 0.
Therefore, in the embodiment, the flow control state of the target memory is further acquired by using the flow control state register, so that the correct issuing of the state query command can be ensured, and unnecessary operations caused by triggering an overtime error fault processing process by the target memory when the target memory cannot respond to the state query command due to the fact that the clock is turned off are avoided.
On the basis of the foregoing embodiment, this embodiment further describes and optimizes the technical solution, and specifically, after determining whether to send a target read-write command to the target memory according to the current state information, so that the target memory performs data read-write operation according to the target read-write command, the method further includes:
and recording the sending time of the query status command sent to the target status register and the current status information corresponding to the query status command.
Specifically, in this embodiment, after the target memory performs data read-write operation according to the target read-write command, the sending time for sending the query status command to the target status register is obtained, and the current status information fed back by the target memory according to the query status command, that is, the current status information corresponding to the query status command, is obtained, and then the obtained sending time and the corresponding current status information are recorded. It should be noted that, in actual operation, a specific recording manner may be recorded in a form of text, an excel table, or a database table, which is not limited in this embodiment and is selected according to actual requirements. More specifically, the storage may be performed in a Memory bank, a hard disk, a TF (Trans-flash Card) Card, an sd (secure digital Memory Card), or the like, and the selection is specifically performed according to actual requirements, which is not limited in this embodiment.
In this embodiment, by further recording the sending time for sending the query status command to the target status register and the current status information corresponding to the query status command, the user can conveniently check the status information of the target memory in each time period, thereby further improving the user experience.
On the basis of the foregoing embodiment, the present embodiment further describes and optimizes the technical solution, and specifically, after the target memory performs data read-write operation according to the target read-write command, the present embodiment further includes:
and sending out corresponding prompt information.
Specifically, in this embodiment, after the target memory performs data read-write operation according to the target read-write command, the prompting device is further triggered to send out corresponding prompting information. It should be noted that the prompting device may specifically be a buzzer and/or an indicator light and/or a display, and the prompting device such as the buzzer, the indicator light, the display, and the like is triggered to send out corresponding prompting information, such as a buzzer sound, a flashing light, characters or images, and the like, so as to intuitively prompt the user that the current target memory completes the read-write operation according to the target read-write command, thereby further improving the use experience of the user.
On the basis of the foregoing embodiment, the present embodiment further describes and optimizes the technical solution, and specifically, after the target memory performs data read-write operation according to the target read-write command, the present embodiment further includes:
and updating the residual storage capacity of the display target storage.
Specifically, in this embodiment, after the target memory performs data read-write operation according to the target read-write command, the remaining storage capacity of the target memory is further calculated, where the remaining storage capacity may be calculated by a difference between the total storage capacity and the currently used storage capacity, or may be calculated by a ratio between the currently used storage capacity and the total storage capacity, which is not limited in this embodiment. And after the residual storage capacity is calculated, updating and displaying the currently calculated residual storage capacity by using a preset display device. In the present embodiment, the specific type of the display device is not limited, and may be, for example, a liquid crystal display or a touch panel.
Therefore, the present embodiment further updates and displays the remaining storage capacity of the target storage, so that the user can more intuitively view the storage condition of the target storage, and the use experience of the user is further improved.
The above detailed description is made on the embodiments of the data reading and writing method provided by the present invention, and the present invention also provides a data reading and writing device, an apparatus, and a computer-readable storage medium corresponding to the method.
Fig. 2 is a structural diagram of a data reading and writing apparatus according to an embodiment of the present invention, and as shown in fig. 2, the data reading and writing apparatus includes:
a sending module 21, configured to send a query status command to the target memory after sending the CMD7 command to the target memory;
a receiving module 22, configured to receive current state information fed back by the target memory according to the query state command;
the determining module 23 is configured to determine whether to send a target read-write command to the target memory according to the current state information, so that the target memory performs data read-write operation according to the target read-write command.
The data reading and writing device provided by the embodiment of the invention has the beneficial effects of the data reading and writing method.
As a preferred embodiment, the sending module further comprises:
the acquisition module is used for acquiring the current flow control state of the target memory through a preset flow control state register;
and when the current flow control state indicates that the clock of the target memory is started, the step of sending a query state command to the target memory is entered.
As a preferred embodiment, a data read/write apparatus further includes:
and the recording module is used for recording the sending time of the query state command sent to the target state register and the current state information corresponding to the query state command.
As a preferred embodiment, a data read/write apparatus further includes:
and the prompt module is used for sending corresponding prompt information after the target memory carries out data read-write operation according to the target read-write command.
As a preferred embodiment, a data read/write apparatus further includes:
and the display module is used for updating and displaying the residual storage capacity of the target memory after the target memory performs data read-write operation according to the target read-write command.
Fig. 3 is a structural diagram of a data reading and writing device according to an embodiment of the present invention, and as shown in fig. 3, the data reading and writing device includes:
a memory 31 for storing a computer program;
and a processor 32, configured to implement the steps of the data reading and writing method when executing the computer program.
The data reading and writing device provided by the embodiment of the invention has the beneficial effects of the data reading and writing method.
In order to solve the above technical problem, the present invention further provides a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the above data reading and writing method.
The computer-readable storage medium provided by the embodiment of the invention has the beneficial effects of the data reading and writing method.
The data reading and writing method, device, equipment and computer readable storage medium provided by the invention are described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are set forth only to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
The embodiments are described in a progressive manner in the specification, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
Claims (10)
1. A method for reading and writing data, comprising:
after sending the CMD7 command to the target memory, sending a query status command to the target memory;
receiving current state information fed back by the target memory according to the query state command;
and determining whether to send a target read-write command to the target memory according to the current state information so that the target memory performs data read-write operation according to the target read-write command.
2. The method of claim 1, prior to said sending a query status command to said target storage, further comprising:
acquiring the current flow control state of the target memory through a preset flow control state register;
and when the current flow control state represents that the clock of the target memory is started, entering the step of sending a query state command to the target memory.
3. The method of claim 1, wherein after determining whether to send a target read-write command to the target memory according to the current state information so that the target memory performs data read-write operation according to the target read-write command, the method further comprises:
and recording the sending time of sending the query state command to the target state register and the current state information corresponding to the query state command.
4. The method of claim 1, wherein after the target memory performs data read/write operations according to the target read/write commands, the method further comprises:
and sending out corresponding prompt information.
5. The method of claim 1, wherein after the target memory performs data read/write operations according to the target read/write commands, the method further comprises:
and updating and displaying the residual storage capacity of the target storage.
6. The method of claim 2, further comprising:
and when the current flow control state represents that the clock of the target memory is turned off, the step of obtaining the current flow control state of the target memory through a preset flow control state register is carried out until the current flow control state represents that the clock of the target memory is turned on.
7. The method according to any one of claims 1 to 6, wherein the read-write command specifically includes:
single block card read commands, multiple block card read commands, single block card write commands, and multiple block card write commands.
8. A data read/write apparatus, comprising:
the sending module is used for sending a query state command to the target memory after sending a CMD7 command to the target memory;
the receiving module is used for receiving the current state information fed back by the target memory according to the query state command;
and the determining module is used for determining whether to send a target read-write command to the target memory according to the current state information so that the target memory can carry out data read-write operation according to the target read-write command.
9. A data read-write apparatus, characterized by comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method of reading and writing data according to any one of claims 1 to 7 when executing said computer program.
10. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, carries out the steps of the data reading and writing method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746836.1A CN111857599A (en) | 2020-07-29 | 2020-07-29 | Data reading and writing method, device and equipment and readable storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010746836.1A CN111857599A (en) | 2020-07-29 | 2020-07-29 | Data reading and writing method, device and equipment and readable storage medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111857599A true CN111857599A (en) | 2020-10-30 |
Family
ID=72944997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010746836.1A Withdrawn CN111857599A (en) | 2020-07-29 | 2020-07-29 | Data reading and writing method, device and equipment and readable storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111857599A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477838A (en) * | 2008-12-31 | 2009-07-08 | 深圳市同洲电子股份有限公司 | Condition detection apparatus, system and electronic device for NAND flash memory body |
| CN101576866A (en) * | 2009-03-05 | 2009-11-11 | 上海闻泰电子科技有限公司 | Method for expanding T card by utilization of NandFlash bus |
| CN104991737A (en) * | 2015-06-18 | 2015-10-21 | 杭州电子科技大学 | Storage card array architecture based hard disk implementation method |
| CN108255430A (en) * | 2018-01-10 | 2018-07-06 | 深圳市得微电子有限责任公司 | NCQ command handling methods, storage device and computer readable storage medium |
| CN109697022A (en) * | 2017-10-23 | 2019-04-30 | 深圳市中兴微电子技术有限公司 | A kind of processing method, device and the computer readable storage medium of message descriptor PD |
| CN110058821A (en) * | 2019-04-24 | 2019-07-26 | 苏州浪潮智能科技有限公司 | A kind of method and device of query service device storage information |
-
2020
- 2020-07-29 CN CN202010746836.1A patent/CN111857599A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101477838A (en) * | 2008-12-31 | 2009-07-08 | 深圳市同洲电子股份有限公司 | Condition detection apparatus, system and electronic device for NAND flash memory body |
| CN101576866A (en) * | 2009-03-05 | 2009-11-11 | 上海闻泰电子科技有限公司 | Method for expanding T card by utilization of NandFlash bus |
| CN104991737A (en) * | 2015-06-18 | 2015-10-21 | 杭州电子科技大学 | Storage card array architecture based hard disk implementation method |
| CN109697022A (en) * | 2017-10-23 | 2019-04-30 | 深圳市中兴微电子技术有限公司 | A kind of processing method, device and the computer readable storage medium of message descriptor PD |
| CN108255430A (en) * | 2018-01-10 | 2018-07-06 | 深圳市得微电子有限责任公司 | NCQ command handling methods, storage device and computer readable storage medium |
| CN110058821A (en) * | 2019-04-24 | 2019-07-26 | 苏州浪潮智能科技有限公司 | A kind of method and device of query service device storage information |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103631534B (en) | Data storage system and managing method thereof | |
| CN107463341A (en) | Method for deleting, device and the mobile terminal of FLASH chip | |
| CN108197309A (en) | A kind of method, system and the readable storage medium storing program for executing of the storage of server assets information | |
| CN115113812B (en) | Write data signal delay control method, apparatus, device and medium | |
| US20170103797A1 (en) | Calibration method and device for dynamic random access memory | |
| EP3072049B1 (en) | Indicating rebuild state of storage devices | |
| US20100153622A1 (en) | Data Access Controller and Data Accessing Method | |
| KR20180081236A (en) | Data storage device and data process system including the same | |
| CN105264608B (en) | Method, Memory Controller Hub and the central processing unit of data storage | |
| US20040139241A1 (en) | Input/output device and method of setting up identification information in input/output device | |
| CN111857599A (en) | Data reading and writing method, device and equipment and readable storage medium | |
| CN117033093A (en) | Chip verification device and method, electronic device, and computer-readable storage medium | |
| CN105867833B (en) | Data storage device and date storage method | |
| CN111198837A (en) | SDIO interface system based on FPGA and controller bridging method | |
| CN107168650B (en) | Method and device for processing data in memory of BIOS | |
| CN110018789B (en) | Method, device and storage medium for dynamically adapting Tr and Tprom time of NAND | |
| CN109299018B (en) | Method and device for reading historical data in Flash memory | |
| CN110532133B (en) | Low-power-consumption high-capacity extensible data storage method | |
| US20060206631A1 (en) | Data duplication method and system used between USB devices | |
| CN107229422B (en) | Data processing method and device | |
| CN107247680B (en) | Multi-user sharing equipment IO card hot insertion method and device | |
| CN111026584A (en) | Device, method and equipment for solving key value database file damage | |
| CN116991542B (en) | Virtual machine snapshot method, system, electronic equipment and computer storage medium | |
| CN112650445B (en) | Method and device for executing Trim by solid state disk | |
| CN113094294B (en) | SSD abnormal power failure processing method, SSD abnormal power failure processing device, computer equipment and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20201030 |
|
| WW01 | Invention patent application withdrawn after publication |