Flash data power failure protection method and equipment
A technology for electronic equipment and data, applied in the field of storage, can solve problems such as shortening the service life of products, and achieve the effect of increasing service life and improving use efficiency
Pending Publication Date: 2021-12-10
SHENZHEN JETLINK TECH CO LTD
View PDF5 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The present invention mainly provides a Flash data power-down protection method and equipment, which are used to solve the problem that the actual service life of the product is reduced due to the existing Flash data power-down protection method
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0046] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings. Wherein, similar elements in different implementations adopt associated similar element numbers. In the following implementation manners, many details are described for better understanding of the present application. However, those skilled in the art can readily recognize that some of the features can be omitted in different situations, or can be replaced by other elements, materials, and methods. In some cases, some operations related to the application are not shown or described in the description, this is to avoid the core part of the application being overwhelmed by too many descriptions, and for those skilled in the art, it is necessary to describe these operations in detail Relevant operations are not necessary, and they can fully understand the relevant operations according to the description in the specification and genera...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a Flash data power-down protection method and equipment, and the method comprises the steps: when electronic equipment is powered on, traversing a power-down protection region, searching a data page meeting a preset condition, and enabling the data page meeting the preset condition to be a starting page of a backup region; if the data page meeting the preset condition exists, performing data recovery according to the backup area indicated by the data page meeting the preset condition, clearing backup data in the current backup area, and taking a logical next page of a termination page of the current backup area as a starting page of the backup area of the next write operation; if the data page meeting the preset condition does not exist, generating a random number, and selecting a page from the power failure protection area according to the generated random number to serve as a starting page of the backup area of the next write operation. On the premise of ensuring data integrity, the erasing times of the data pages in the power-down protection area tend to be the same, the use efficiency of the power-down protection area is improved, and the service life of a product is prolonged.
Description
technical field [0001] The invention relates to the field of storage technology, in particular to a flash data power-down protection method and device. Background technique [0002] As a non-volatile memory (Non-Volatile Memory, NVM), flash memory (Flash) has been widely used due to its advantages of large capacity and low price. For example, most of the bottom layers of the smart card operating system (Card Operate System, COS) The chips all use Flash as the storage medium. Most of Flash only supports page erasing and page writing. The so-called page erasing and page writing means that all data must be erased before writing new data. If new data needs to be written again Then the entire page needs to be erased again. If an unexpected power failure occurs during erasing or writing, the data may be in an incomplete state of partial erasing or partial writing, and data integrity cannot be ensured. [0003] In order to ensure the integrity of the data, a space is allocated i...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14G06F12/0882G06F3/06
CPCG06F11/1451G06F12/0882G06F3/0652G06F3/0679G06F3/0616Y02D10/00
Inventor 金辉邓世荣
Owner SHENZHEN JETLINK TECH CO LTD