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Upgrading method and device of multiple single-chip microcomputers based on serial buses

A technology of serial bus and single-chip microcomputer, applied in the field of multi-single-chip microcomputer upgrade method and device based on serial bus, can solve the problems of no security verification, high technical risk, poor versatility, etc., and achieve the effect of reducing hardware complexity

Active Publication Date: 2014-06-04
HAIER GRP CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention provides a multi-single-chip online upgrade method and device to overcome the disadvantages of poor versatility, high technical risk, manual upgrade of different application programs for multiple smart devices one by one, and no safety verification during the upgrade. , and the main MCU is not needed when upgrading, which reduces the hardware complexity

Method used

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  • Upgrading method and device of multiple single-chip microcomputers based on serial buses
  • Upgrading method and device of multiple single-chip microcomputers based on serial buses

Examples

Experimental program
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Embodiment 1

[0052] see figure 1 , showing a method for upgrading multiple single-chip microcomputers based on a serial bus. The specific steps of the upgrade method for the master device PC to the slave device 1 are as follows:

[0053] Step 101: the PC sends an upgrade command from the device 1 to each slave device through the serial bus;

[0054] Step 102: Each slave device judges whether to upgrade this time according to the upgrade command received from slave device 1. If slave device 1 judges yes, execute step 103. Other slave devices judge no, do not perform this upgrade, and continue to wait for the next step. An upgrade command sent by a PC;

[0055] Step 103: From device 1 to the PC, send a password verification command for the local upgrade device identification information, and require the PC to perform password verification, wherein the upgrade device identification information can use the device type, program version number and challenge code, and the device type is used for...

Embodiment 2

[0065] see figure 2 , a schematic diagram of a multi-single-chip microcomputer upgrade device based on a serial bus. The device includes: a master device, each slave device, and a serial bus. The slave devices are slave device 1, slave device 2...slave device N. The master device and each single-chip slave device are interconnected by a serial bus.

[0066] Master equipment comprises: master command transmission unit 11, password generation unit 12, program selection unit 13; Described each single-chip microcomputer slave equipment, taking slave equipment 1 as example, comprises: slave command transmission unit 21, password verification unit 22, upgrade unit 23 ;

[0067] When the main device PC upgrades the slave device 1, each unit in the device works as follows:

[0068] 1. The master command sending unit 11, configured to send the upgrade command of the slave device 1 to the serial bus.

[0069] 2. The slave command sending unit 21 is used to send the identification ...

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Abstract

The invention provides an upgrading method and device of multiple single-chip microcomputers based on serial buses, and belongs to the technical field of on-line grading of the single-chip microcomputers. The method comprises the steps that a main device is connected with single-chip microcomputer auxiliary devices through the series buses; the main device sends an upgrading instruction of single-chip microcomputer auxiliary devices needing to be upgraded to the single-chip microcomputer auxiliary devices; the single-chip microcomputer auxiliary devices needing to be upgraded send a password verification requirement instruction to the main device; the main device sends a response password to the single-chip microcomputer auxiliary devices needing to be upgraded; the single-chip microcomputer auxiliary devices needing to be upgraded verify the response password; the main device sends an upgrading program to the single-chip microcomputer auxiliary devices needing to be upgraded; the single-chip microcomputer auxiliary devices needing to be upgraded receive the upgrading program and are upgraded. The upgrading method and device overcome the shortcoming that different application programs are manually ungraded for multiple single-chip microcomputer intelligent devices one by one, a main single-chip microcomputer is not required in the upgrading process, hardware complexity is reduced, a password verification program is added in the upgrading part, and safety protection of the single-chip microcomputers is achieved.

Description

technical field [0001] The invention relates to the technical field of on-line upgrading of single-chip microcomputers, in particular to a method and device for upgrading multiple single-chip microcomputers based on a serial bus. Background technique [0002] At present, electronic smart devices mainly designed with single-chip microcomputers are more and more widely used in smart homes. Single-chip microcomputers mainly realize various functions of smart devices by running the application programs stored in them. The single-chip microcomputer application program in the smart device is generally programmed before leaving the factory, and the program cannot be changed again in the hands of the user. When users purchase and use smart devices, manufacturers usually need to upgrade and maintain the products to correct the defects of the single-chip application program in the smart device or to add new functions to the smart device, so smart home users need to update the single-c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445G06F21/44
Inventor 徐志方刘鹏达王运涛
Owner HAIER GRP CORP
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