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Embedded equipment startup method and software upgrading method

A technology for embedded devices and software, applied in the direction of program loading/starting, program control devices, etc., can solve the problems of increasing hardware complexity, increasing cost investment, and inability to upgrade embedded devices, and achieves enhanced ease of use, The effect of cost savings and complexity reduction

Inactive Publication Date: 2008-07-09
ZTE CORP
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  • Summary
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the implementation process of this method is relatively simple, it has the following disadvantages: it needs to increase the peripheral circuit to make the two sets of storage devices coexist, which increases the complexity of the hardware; the use of two storage devices increases the cost input; Embedded devices cannot be upgraded
In actual use, some operations must be performed in safe mode, and sometimes the device needs to be updated in the safe mode, which causes a lot of inconvenience to the normal use of the device

Method used

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  • Embedded equipment startup method and software upgrading method
  • Embedded equipment startup method and software upgrading method
  • Embedded equipment startup method and software upgrading method

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Embodiment Construction

[0044] The method of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments of the present invention.

[0045] Fig. 1 is a schematic diagram of the logical division of the storage space of the flash memory in the embodiment of the present invention. As shown in Fig. 1, the storage space of the flash memory is logically partitioned into three parts: a control information area, a first image area and a second image area; Wherein, the size and structure of the first mirror area and the second mirror area are exactly the same, and the difference between the two is only in the different positions in the flash memory.

[0046] To logically partition the storage space of the flash memory and determine the size of the storage space occupied by each partition, the following factors need to be considered:

[0047] The sum of the number of bytes of software required for the current embedded device to work, the number ...

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Abstract

The invention discloses a start-up method and a software upgrade method for an embedded device. The method comprises the following steps of: dividing logically the memory space of a single-chip flash chip into a control information section, a first mirror section and a second mirror section backed up mutually with the first mirror section. When the embedded device is started up, the available mirror data in the first mirror section or in the second mirror section can be loaded into the memory and can provide upgrading for the invalid mirror section. The inventive method can simplify the complexity of the hardware circuit design and achieve the safe operating of the single-chip flash memory used in the embedded device and the safe upgrading for the device.

Description

technical field [0001] The invention relates to a supporting technology of an embedded system (ES), in particular to a starting method and a software upgrading method of an embedded device. Background technique [0002] ES is application-centric, based on computer technology, and its software and hardware can be tailored. It is suitable for special-purpose computer systems that have strict requirements on function, reliability, cost, volume, and power consumption. It generally consists of an embedded microprocessor (EMPU), peripheral hardware devices, embedded operating system (EOS) and various application programs. ES is different from the application system of ordinary personal computer (PC), and there are great differences between ESs designed for different specific applications. Generally speaking, ES functions are relatively single, and the requirements for compatibility are not high. [0003] During the startup, normal operation and software upgrade process of the em...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 叶磊邓一星万武辉
Owner ZTE CORP
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