Unlock instant, AI-driven research and patent intelligence for your innovation.

Device and method for sector-based embedded system write protection

An embedded system, write protection technology, applied in the redundancy of computing for data error detection, response to error generation, prevention of unauthorized use of memory, etc., can solve the problem of high coupling, to ensure security. Effect

Active Publication Date: 2017-11-14
WUHAN YANGTZE COMM ZHILIAN TECH
View PDF1 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, for most embedded systems, it is simply to write protect all sectors. This method is highly coupled. Once the underlying area of ​​the system is damaged, it will lead to serious consequences.

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
  • Device and method for sector-based embedded system write protection
  • Device and method for sector-based embedded system write protection
  • Device and method for sector-based embedded system write protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0033] Such as figure 1The normal work flow chart of the embedded system is shown. The write protection device of the embedded system includes two serial peripheral storage devices 1 and 2 that can be read and written. Among them, the data programming module, the write protection setting module and the software application layer module are shown in the figure Not shown, before the embedded system works normally, the data burning module burns the data into the first serial peripheral storage device with a storage capacity of 16MByte according to the location information, and the burning information files include: system boot program, kernel image and The minimum file system forms the system boot program unit, the kernel image unit and the minimum file system unit respectively. During this period, the storage capacity is 32MByte. The second serial...

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 sector-based embedded system write protection device and method, through the first serial peripheral storage device, the second serial peripheral storage device, and the second serial peripheral storage device in the embedded write protection device. The first storage unit and the second storage unit in the peripheral storage device separate and protect the file system boot program, kernel image and minimum file system from the file system, thereby reducing the coupling effect between them, and adopting the method of upgrading the file system. Multiple redundant backups. The invention improves the security and stability of the system.

Description

technical field [0001] The present invention relates to the embedded system field of ARM (Advanced RISC Machines, Advanced Reduced Instruction Set Processor), specifically refers to a device and a method for ensuring the security of an embedded file system. Background technique [0002] Embedded systems have a history of more than 30 years, and embedded technology has gone through several stages of development. After entering the 1990s, digital technology with computers and software as the core has achieved rapid development. It has not only widely penetrated into related industries such as social economy, military, transportation, and communication, but also penetrated into various fields such as home appliances and entertainment. Digital technology revolution. With the rapid popularization of multimedia technology and Internet applications, the integration trend of consumer electronics, computer and communication technology is obvious, and embedded technology has once aga...

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
Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/14G06F11/14
Inventor 黄莹陈春汉付凯
Owner WUHAN YANGTZE COMM ZHILIAN TECH