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Method for upgrading master and slave MCUs (micro control units)

A master-slave and upgraded technology, which is applied in the direction of program loading/starting, program control devices, etc., can solve the problems of consuming the working time of operators, high cost of upgrading time, waste of hardware resources, etc., to save working time and reduce time cost, effect of hardware cost reduction

Active Publication Date: 2014-08-06
GUANGZHOU HUAXIN ELECTRONICS TECH
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned method requires each MCU to reserve at least one upgrade interface, which causes waste of hardware resources and increases hardware costs; at the same time, it takes a lot of working time for operators to upgrade each MCU individually, so the upgrade high time cost

Method used

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  • Method for upgrading master and slave MCUs (micro control units)
  • Method for upgrading master and slave MCUs (micro control units)
  • Method for upgrading master and slave MCUs (micro control units)

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Embodiment Construction

[0039] The embodiment of the present invention provides a master-slave MCU upgrade method, which is used to avoid waste of hardware resources and reduce hardware costs; at the same time, it is not necessary to upgrade each MCU separately, saving the working time of operators and reducing the time cost of the upgrade.

[0040] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0041] see figure ...

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Abstract

The embodiment of the invention discloses a method for upgrading master and slave MCUs, and aims at avoiding the waste of hardware resources and reducing hardware cost; meanwhile, each MCU does not need to be upgraded independently, so that the working time of an operator is saved, and the upgrading time cost is lowered. The method disclosed by the invention comprises the steps that a first-stage MCU acquires an upgrading file through an upgrading interface of the first-stage MCU, wherein the upgrading file comprises an upgrading program of an MCU to be upgraded; the nth-stage MCU acquires the upgrading file from the (n-1)th-stage MCU through a communication link, wherein n is greater than or equal to 2; the (n-1)th-stage MCU is cascaded with the nth-stage MCU; the upgrading program corresponds to the MCU; the MCU is upgraded according to the acquired corresponding upgrading program.

Description

technical field [0001] The invention relates to the field of microcomputers, in particular to a master-slave MCU upgrade method. Background technique [0002] At present, with the development of microcomputer technology and the diversification of application functions, a single MCU (MicroControl Unit, micro control unit) can no longer meet the requirements of function or performance. At present, most products choose to use master-slave MCU (may include several slaves , the slave then controls the multi-level connection of several slaves) to achieve higher performance and requirements. [0003] While using the master-slave MCU, it is necessary to upgrade the master-slave MCU to enhance the performance and applicability of the master-slave MCU. The general method is: in the master-slave MCU, all MCUs (comprising the master MCU and the slave MCU) all reserve at least one upgrade interface, and when an upgrade is needed, each MCU is individually upgraded through these upgrade i...

Claims

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Application Information

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IPC IPC(8): G06F9/445
Inventor 王龙辉
Owner GUANGZHOU HUAXIN ELECTRONICS TECH
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