Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for implementation of FLASH chip data security

A data security and chip technology, which is applied in the direction of data error detection, response error generation, protection of storage content to prevent loss, etc., can solve the problem of unrecoverable physical sector and logical sector size, inconsistent FLASH Chip data and other issues to achieve the effect of ensuring data security and overcoming data damage

Inactive Publication Date: 2007-11-28
GLOBAL INNOVATION AGGREGATORS LLC
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for realizing the data security of the FLASH chip, which is used to solve the problem that the data of the FLASH chip whose size is inconsistent with the physical sector and the logical sector cannot be recovered when abnormal conditions such as power failure occur in the system

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for implementation of FLASH chip data security
  • Method for implementation of FLASH chip data security
  • Method for implementation of FLASH chip data security

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Please refer to FIG. 6 , which is a schematic flowchart of a method for realizing FLASH chip data security according to the present invention, combined with FIG. 1-FIG. 5 . Figure 1 describes the data in the main area before writing to the FLASH chip; Figure 2 describes the data in the main area when the sector in the main area is powered off; Figure 3 describes the data in the main area when the sector in the main area is powered off The data of district; Fig. 4 has described the data of writing the main district sector after the power-down recovery of main district; Fig. 5 has described the data of the spare district after backing up all data of main district before the present invention operates FLASH chip. The method process of the present invention specifically comprises the following steps:

[0033] Step 601, divide the FLASH into a flag area, a spare area, and a main area; specifically, set aside one or more physical sectors in the FLASH to store an effective fla...

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

No PUM Login to View More

Abstract

The invention discloses a method to realize FLASH chip data safety, which comprises the following steps: 1, dividing the FLASH chip to index zone, standby zone and host using zone; storing effective index structure with the index zone; setting the effective index structure as host using zone effective index field, host using zone address field, data length field and standby zone effective index field; 2, writing the present data of the host using zone, writing data and integral data into the standby zone; rewriting the field arrangement of the effective index structure; 3, writing the present data, writing data and integral data of the standby zone to the host using zone; rewriting the filed arrangement of the effective index structure. This invention is a method, which can keep the safety of the FLASH chip.

Description

technical field [0001] The invention relates to a method for realizing data security of a FLASH chip, in particular to a method for realizing data security when performing a write operation on a FLASH chip whose physical sector size is inconsistent with that of a logical sector. Background technique [0002] FLASH chip is a commonly used memory chip that can still save data in the case of power failure, and is widely used in embedded systems. FLASH is generally divided into sectors on the physical medium. The write operation to FLASH is based on the sector and the entire sector needs to be erased before the write operation can be performed. That is, assuming that the user only needs to write one byte , it is also necessary to perform an erase first and then write operation on the entire sector. The steps of the write operation to FLASH are generally: first obtain the data of the sector where the destination address is located, then replace the data in the destination area 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
no application Login to View More
IPC IPC(8): G06F12/16G06F11/14
Inventor 管冬根李小伟
Owner GLOBAL INNOVATION AGGREGATORS LLC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com