Embedded system for realizing software updating and software backup and implementation method thereof

An embedded system, software update technology, applied in the direction of response to the generation of errors, redundant data error detection in operations, program control devices, etc. And other issues

Active Publication Date: 2010-10-27
TIANJIN COMBA TELECOM SYST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of using this solution to implement software update is simple, but the disadvantage is that it does not support software backup, that is, the original software is erased when the software is updated,

Method used

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  • Embedded system for realizing software updating and software backup and implementation method thereof
  • Embedded system for realizing software updating and software backup and implementation method thereof
  • Embedded system for realizing software updating and software backup and implementation method thereof

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Experimental program
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Embodiment

[0045] Figure 5 It is the hardware structure of the system of the present invention. The present invention is an embedded system for realizing software update and software backup, which includes a microcontroller (MCU), a complex programmable logic device (CPLD), a program memory and a non-volatile memory for storing "running requirement data" on the hardware. A random access memory (NVRAM), wherein the MCU is built-in or externally connected with a data memory, and the NVRAM is signally connected to the MCU.

[0046] The program memory includes an application storage block and a startup / common program storage block, and at the same time, the startup / common program storage block and the application storage block occupy different address spaces; the application storage block includes mutually independent application storage blocks - Page 1 and Application Memory Block - Page 2.

[0047] Described CPLD carries out logic combination to generate chip selection logic module with...

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PUM

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Abstract

The invention provides an embedded system for realizing software updating and software backup. The embedded system comprises a microprogrammed control unit (MCU), a program memory, a data memory, a nonvolatile random access memory (NVRAM) and a chip selection logic module, wherein the MCU is internally provided with or externally connected with the data memory; the NVRAM is used for storing operating requirement data and is connected with the MCU through a signal; the program memory comprises an application program storage block and a set-up/common program storage block which occupy differentaddress space; the application program storage block comprises an application program storage block-page 1 and an application program storage block-page 2 which are mutually independent; and the chipselection logic module is used for validating the set-up/common program storage block at once after switching on, and validating the application program storage block-page 1 and the application program storage block-page 2 in an effective time sharing mode. The embedded system is suitable for adopting an 8-bit MCU embedded system, which can realize the software updating and the software backup ofthe embedded system at the same time.

Description

technical field [0001] The invention relates to the field of embedded systems, in particular to an embedded system for realizing software update and software backup and its realization method. Background technique [0002] With the development of the information industry, the embedded system with microcontroller (MCU) / microprocessor (MPU) as the core is more and more widely used. It is generally composed of four parts: embedded microprocessor, peripheral hardware devices, embedded operating system and user's application program, and is used to realize functions such as control, monitoring or management of other devices. Embedded systems are a combination of hardware and software. With the hardware unchanged, different functions can be achieved by running different software. In many cases, designers first design a general hardware platform and then design different software. , by replacing different software with different products to achieve different product functions, how...

Claims

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Application Information

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IPC IPC(8): G06F9/445G06F11/14
Inventor 欧晓明
Owner TIANJIN COMBA TELECOM SYST CO LTD
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