Method for remotely reliably upgrading XIP (execute in place) chip software

A chip and reliable technology, applied in the field of electronic information, can solve problems such as unrecoverable firmware, and achieve the effect of avoiding equipment abnormalities and reducing costs

Inactive Publication Date: 2012-09-12
XIAN UNISTRONG NAVIGATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned shortcoming of the prior art, provide a kind of method for remote and reliable upgrading XIP chip software, this method can real

Method used

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  • Method for remotely reliably upgrading XIP (execute in place) chip software
  • Method for remotely reliably upgrading XIP (execute in place) chip software

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Embodiment Construction

[0026] The present invention is described in further detail below in conjunction with accompanying drawing:

[0027] see figure 1 , the method for remote and reliable upgrade of XIP chip software of the present invention can be described as a remote upgrade method based on disaster recovery Flash backup, that is, it is aimed at products designed based on XIP chips, and has GPRS or 3G or network or WIFI modules. Occupies a certain amount of space on the external storage medium in the device. It specifically follows the steps below:

[0028] 1) Download the new version of APP firmware through the wireless network; the wireless network can be GPRS, 3G network or WIFI module.

[0029] 2) In the external storage medium, divide two independent areas that can store APP firmware, among which area 1 is used for upgrading firmware of the new version, and area 2 is used for storing the current version of firmware; store the new version of APP firmware in the external In the storage me...

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Abstract

The invention discloses a method for remotely reliably upgrading XIP (execute in place) chip software. The method aims to upgrade products designed on the basis of an XIP chip and provided with a GPRS (general packet radio service) or 3G (third generation) network or a WIFI (wireless fidelity) module. When upgrading firmware of the products, the firmware can be upgraded directly remotely through the network, and upgrading failure caused by power outage or other factors during upgrading can be avoided, and reliable upgrading can be guaranteed. Meanwhile, by the method, BOOT function definition is simplified, and downloading the firmware from a server in the BOOT area is omitted. The method can remotely reliably upgrade the XIP chip, and cost for field upgrading by operators can be evidently reduced, and the problem that the firmware cannot be reset caused by power outage during upgrading is avoided.

Description

technical field [0001] The invention belongs to the technical field of electronic information, and relates to a method for upgrading XIP chip software, in particular to a method for remotely and reliably upgrading XIP chip software. Background technique [0002] In the field of automotive electronics or industrial control, a large number of XIP chips are used for safety and reliability. Since the software of XIP (execute in place) chips runs directly in Flash, reliable reading and writing of flash upgrades cannot be guaranteed during operation, and most of them need to be updated in The 4S shop upgrades during the maintenance process. The traditional network upgrade is to return to the BOOT area, and then download the upgrade, which requires the built-in battery of the device or the power supply of the device to be stable. [0003] Therefore, there is still a remote and reliable upgrade method in this field, which can significantly reduce the cost of the operator to upgrade...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 陈云
Owner XIAN UNISTRONG NAVIGATION TECH CO LTD
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