CN113656216A - Method and device for stably operating flash memory - Google Patents
Method and device for stably operating flash memory Download PDFInfo
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- CN113656216A CN113656216A CN202110827113.9A CN202110827113A CN113656216A CN 113656216 A CN113656216 A CN 113656216A CN 202110827113 A CN202110827113 A CN 202110827113A CN 113656216 A CN113656216 A CN 113656216A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
- G06F11/1415—Saving, restoring, recovering or retrying at system level
- G06F11/142—Reconfiguring to eliminate the error
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
- G06F11/1402—Saving, restoring, recovering or retrying
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- 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
- G06F3/0653—Monitoring storage devices or systems
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- 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]
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Abstract
The embodiment of the invention provides a method and a device for stably operating a flash memory, which relate to the technical field of electronics, and the method comprises the following steps: after the flash memory is electrified to carry out read-write operation, the internal temperature of the flash memory is obtained; and performing read-write operation according to the redundancy operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read the unit size information is. The heating of the flash memory is controlled by controlling the redundant operation force, so that the heating width of the flash memory can be increased virtually by the heating of the flash memory, and the heating width of the flash memory is increased without increasing the cost.
Description
Technical Field
The present invention relates to the field of electronic technologies, and in particular, to a method and an apparatus for stable operation of a flash memory.
Background
Because the stability of the flash memory medium is greatly influenced by the temperature, the stability of the current mainstream flash memory medium is better between 0 ℃ and 70 ℃. In the environment of more than 70 ℃ and less than 0 ℃, the stability of the flash memory medium is obviously deteriorated, especially under the temperature of minus 20 ℃. In order to adapt to low temperature environment, it is common practice in the industry to select a flash memory medium with better quality and wider support temperature, but the cost is relatively higher.
Disclosure of Invention
The embodiment of the invention provides a method and a device for stably operating a flash memory, which are used for solving the problems that the current industry generally selects a flash memory medium with better quality and wider support temperature, but the cost is relatively higher, and comprise the following steps:
a method of stable operation of a flash memory, the method comprising:
after the flash memory is electrified to carry out read-write operation, the internal temperature of the flash memory is obtained;
and performing read-write operation according to the redundancy operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read the unit size information is.
Optionally, the performing read-write operation according to the redundancy operation strength corresponding to the internal temperature of the flash memory, the stronger the redundancy operation strength is, the shorter the time for the flash memory to read the unit size information is, includes:
and when the internal temperature of the flash memory is lower than a preset first temperature value, performing read-write operation according to redundancy operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read unit size information is.
Optionally, after performing the read-write operation according to the redundant operation strength corresponding to the internal temperature of the flash memory, the method includes:
and when the internal temperature of the flash memory is lower than a preset second temperature value, forbidding the read-write operation of the flash memory at the current moment, and informing a user that the read-write fails at the time.
Optionally, after the flash memory is powered on to perform the read-write operation and the internal temperature of the flash memory is obtained, the method includes:
when the internal temperature of the flash memory is greater than a preset first temperature value, judging whether an operation request sent by a user is received;
and executing the operation corresponding to the operation request after receiving the operation request sent by the user.
An apparatus for stable operation of a flash memory, the apparatus comprising:
the internal temperature acquisition module is used for acquiring the internal temperature of the flash memory after the flash memory is electrified for read-write operation;
and the read-write operation execution module is used for performing read-write operation according to the redundant operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundant operation strength is, the shorter the time for the flash memory to read the unit size information is.
Optionally, the read-write operation executing module includes:
and the first temperature value judging module is used for performing read-write operation according to redundancy operation strength corresponding to the internal temperature of the flash memory when the internal temperature of the flash memory is smaller than a preset first temperature value, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read unit size information is.
Optionally, the apparatus further comprises:
and the read-write operation forbidding module is used for forbidding the read-write operation of the flash memory at the current moment when the internal temperature of the flash memory is less than a preset second temperature value and informing a user of the read-write failure.
Optionally, the apparatus further comprises:
the operation request receiving and judging module is used for judging whether an operation request sent by a user is received or not when the internal temperature of the flash memory is greater than a preset first temperature value;
and the user request execution module is used for executing the operation corresponding to the operation request after receiving the operation request sent by the user.
An apparatus comprising at least one processor and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of flash memory stability operation as described above.
A computer-readable storage medium having stored thereon computer-executable instructions for causing a computer to perform a method of flash memory stability operation as described above.
The invention has the following advantages:
in the method for stably operating the flash memory, after the flash memory is electrified to perform read-write operation, the internal temperature of the flash memory is acquired, and the read-write operation is performed according to the redundancy operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read unit size information is. The heating of the flash memory is controlled by controlling the redundant operation force, so that the heating width of the flash memory can be increased virtually by the heating of the flash memory, and the heating width of the flash memory is increased without increasing the cost.
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In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a flow chart illustrating the steps of a method for stable operation of a flash memory according to the present invention;
fig. 2 is a schematic structural diagram of an apparatus for stably operating a flash memory according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all 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.
Referring to fig. 1, a flow chart showing steps of a method for stably operating a flash memory according to the present invention is shown, the present invention is mainly applied to two parts, namely a temperature detection system and a temperature control system, and the method includes the following steps:
after the flash memory is electrified to carry out read-write operation, the temperature detection system is mainly responsible for periodically obtaining the internal temperature of the flash memory from the flash memory and inputting the internal temperature of the flash memory into the temperature control system, and the temperature control system obtains the internal temperature of the flash memory.
In an embodiment of the present application, after step 101, the method includes:
when the internal temperature of the flash memory is greater than a preset first temperature value, judging whether an operation request sent by a user is received;
and executing the operation corresponding to the operation request after receiving the operation request sent by the user.
In the embodiment of the application, the user can skip the control of the temperature control system, directly control the flash memory, and further can guarantee the performance intensity of the flash memory when the user has a demand on the reading performance of the flash memory, and the user experience is not influenced by the temperature control system.
And 102, performing read-write operation according to the redundancy operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read unit size information is.
In an embodiment of the present application, step 102 includes:
and when the internal temperature of the flash memory is lower than a preset first temperature value, performing read-write operation according to redundancy operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read unit size information is.
The redundancy operation includes reading a specific flash memory physical block, enabling a differential signal of a flash memory data bus, increasing IO driving capability, and finally increasing power consumption to generate heat, thereby increasing temperature.
The first temperature value is 0 ℃.
The temperature control system is mainly responsible for controlling the internal temperature of the flash memory, and controls the redundant operation strength according to the current internal temperature of the flash memory, so that the change of the internal temperature is realized.
To the interval of reading operation, the size of IO driving force, the clock frequency of flash memory operation carries out quantization grading and is divided into 0 ~ 7 grades altogether, as the accuse temperature dynamics:
the corresponding relationship between the internal temperature of the flash memory and the redundancy operation strength can be shown in the following table, where x is the internal temperature of the flash memory:
| internal temperature of flash memory | Degree of redundant operation |
| x>0℃ | 1-stage temperature control |
| -5<x<0℃ | Level 2 temperature control |
| -10<x<-5℃ | 3-stage temperature control |
| -15<x<-10℃ | 4-stage temperature control |
| -20<x<-15℃ | 5-stage temperature control |
| -30<x<-20℃ | 6-stage temperature control |
| x<-30℃ | 7-stage temperature control |
In the specific implementation, the temperature control level is dynamically changed, namely the redundant operation strength is changed, so that the internal temperature of the flash memory is as close as possible to 0 ℃, and the temperature control redundant operation is not performed at the temperature above 0 ℃. The operating temperature of the flash memory can be 20-30 ℃ higher than the actual ambient temperature, so that the flash memory can stably work in a low-temperature environment.
In an embodiment of the present application, when the internal temperature of the flash memory is lower than a preset second temperature value, the read-write operation of the flash memory at the current time is prohibited, and a user is notified that the read-write operation fails at this time.
Wherein the second temperature value is-30 ℃.
When the temperature difference can not be compensated through temperature control and temperature rise operation and the internal temperature of the flash memory is reduced to be below minus 30 ℃, a low-temperature data protection function is triggered, all write operations are forbidden, the reliability of the internal data of the flash memory is protected, and meanwhile, the write request is fed back to the host to fail. When at extremely low temperature, appear because the temperature influence appears reading the data bit upset too much, when the error correction is just not come back, use different control by temperature change grades, make inside temperature control carry out reread under different states, increase the possibility of saving data back.
In summary, according to the method for stably operating the flash memory, after the flash memory is powered on to perform the read-write operation, the internal temperature of the flash memory is obtained, and the read-write operation is performed according to the redundancy operation strength corresponding to the internal temperature of the flash memory, where the stronger the redundancy operation strength is, the shorter the time for the flash memory to read the unit size information is. The heating of the flash memory is controlled by controlling the redundant operation force, so that the heating width of the flash memory can be increased virtually by the heating of the flash memory, and the heating width of the flash memory is increased without increasing the cost.
It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the embodiments. Further, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no particular act is required of the embodiments of the application.
Referring to fig. 2, a schematic structural diagram of an apparatus for stable operation of a flash memory according to an embodiment of the present application is shown, where the apparatus includes the following structures:
an internal temperature obtaining module 201, configured to obtain an internal temperature of the flash memory after the flash memory is powered on to perform a read-write operation;
and the read-write operation execution module 202 is configured to perform read-write operation according to redundancy operation strength corresponding to the internal temperature of the flash memory, where the stronger the redundancy operation strength is, the shorter the time for the flash memory to read unit size information is.
In an embodiment of the present application, the read/write operation executing module includes:
and the first temperature value judging module is used for performing read-write operation according to redundancy operation strength corresponding to the internal temperature of the flash memory when the internal temperature of the flash memory is smaller than a preset first temperature value, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read unit size information is.
In an embodiment of the present application, the apparatus further includes:
and the read-write operation forbidding module is used for forbidding the read-write operation of the flash memory at the current moment when the internal temperature of the flash memory is less than a preset second temperature value and informing a user of the read-write failure.
In an embodiment of the present application, the apparatus further includes:
the operation request receiving and judging module is used for judging whether an operation request sent by a user is received or not when the internal temperature of the flash memory is greater than a preset first temperature value;
and the user request execution module is used for executing the operation corresponding to the operation request after receiving the operation request sent by the user.
In summary, according to the method for stably operating the flash memory, after the flash memory is powered on to perform the read-write operation, the internal temperature of the flash memory is obtained, and the read-write operation is performed according to the redundancy operation strength corresponding to the internal temperature of the flash memory, where the stronger the redundancy operation strength is, the shorter the time for the flash memory to read the unit size information is. The heating of the flash memory is controlled by controlling the redundant operation force, so that the heating width of the flash memory can be increased virtually by the heating of the flash memory, and the heating width of the flash memory is increased without increasing the cost.
For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.
The embodiment of the invention also provides a device, which comprises at least one processor and a memory which is used for being connected with the at least one processor in a communication way; the memory stores instructions executable by the at least one processor to cause the at least one processor to perform a method of flash memory stability operation as described above.
The memory, which is a non-transitory computer readable storage medium, may be used to store non-transitory software programs as well as non-transitory computer executable programs. Further, the memory may include high speed random access memory, and may also include non-transitory memory, such as at least one disk memory, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory optionally includes memory remotely located from the control processor, and these remote memories may be connected to the power transmission circuit across the smart identification device via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Embodiments of the present invention also provide a computer-readable storage medium storing computer-executable instructions, which are executed by one or more control processors, for example, by a control processor, and enable the one or more control processors to execute a method for performing flash memory stability operation in the above method embodiments, for example, execute the above described method steps S101 to S102 in fig. 1.
The above-described embodiments of the apparatus are merely illustrative, wherein the units illustrated as separate components may or may not be physically separate, i.e. may be located in one place, or may also be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
One of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, Digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.
While the preferred embodiments of the present invention have been described, the present invention is not limited to the above embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are included in the scope of the present invention defined by the claims.
Claims (10)
1. A method for stable operation of a flash memory, the method comprising:
after the flash memory is electrified to carry out read-write operation, the internal temperature of the flash memory is obtained;
and performing read-write operation according to the redundancy operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read the unit size information is.
2. The method of claim 1, wherein the performing the read/write operation according to the redundancy operation strength corresponding to the internal temperature of the flash memory, the stronger the redundancy operation strength, the shorter the time for the flash memory to read the unit size information, comprises:
and when the internal temperature of the flash memory is lower than a preset first temperature value, performing read-write operation according to redundancy operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read unit size information is.
3. The method according to claim 1 or 2, wherein after performing the read-write operation according to the redundancy operation strength corresponding to the internal temperature of the flash memory, the method comprises:
and when the internal temperature of the flash memory is lower than a preset second temperature value, forbidding the read-write operation of the flash memory at the current moment, and informing a user that the read-write fails at the time.
4. The method of claim 1, wherein after the flash memory is powered on for performing the read/write operation and the internal temperature of the flash memory is obtained, the method comprises:
when the internal temperature of the flash memory is greater than a preset first temperature value, judging whether an operation request sent by a user is received;
and executing the operation corresponding to the operation request after receiving the operation request sent by the user.
5. An apparatus for stable operation of a flash memory, the apparatus comprising:
the internal temperature acquisition module is used for acquiring the internal temperature of the flash memory after the flash memory is electrified for read-write operation;
and the read-write operation execution module is used for performing read-write operation according to the redundant operation strength corresponding to the internal temperature of the flash memory, wherein the stronger the redundant operation strength is, the shorter the time for the flash memory to read the unit size information is.
6. The apparatus of claim 5, wherein the read/write operation execution module comprises:
and the first temperature value judging module is used for performing read-write operation according to redundancy operation strength corresponding to the internal temperature of the flash memory when the internal temperature of the flash memory is smaller than a preset first temperature value, wherein the stronger the redundancy operation strength is, the shorter the time for the flash memory to read unit size information is.
7. The apparatus for stable operation of flash memory according to claim 5 or 6, further comprising:
and the read-write operation forbidding module is used for forbidding the read-write operation of the flash memory at the current moment when the internal temperature of the flash memory is less than a preset second temperature value and informing a user of the read-write failure.
8. The apparatus for stable operation of flash memory according to claim 5, further comprising:
the operation request receiving and judging module is used for judging whether an operation request sent by a user is received or not when the internal temperature of the flash memory is greater than a preset first temperature value;
and the user request execution module is used for executing the operation corresponding to the operation request after receiving the operation request sent by the user.
9. An apparatus comprising at least one processor and a memory communicatively coupled to the at least one processor; the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of flash memory stability operation of any of claims 1 to 4.
10. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the method for stable operation of a flash memory according to any one of claims 1 to 4.
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