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Double-CPU system and program updating method thereof

A program upgrade and system program technology, applied in program control devices, program loading/starting, etc., can solve problems such as inability to modify, and achieve the effects of good portability, reliable upgrade, and improved efficiency

Active Publication Date: 2014-10-15
JIANGSU EVER SOLAR NEW ENERGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Early program chips generally adopt ROM design, and its program code is solidified during the production process and cannot be modified.

Method used

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  • Double-CPU system and program updating method thereof
  • Double-CPU system and program updating method thereof
  • Double-CPU system and program updating method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0072] Such as figure 1 Shown is a schematic diagram of the dual-CPU remote program upgrade system, in the figure: 1-n is the inverter (inverter), 2 is the PMU, 3 is the PC client, PMU2 and multiple inverters 1-n through the network Connection, forming a local area network on site, PMU2 monitors and collects data from inverters 1-n, and PC client 3 and PMU2 realize interactive information through network connection.

[0073] as figure 1 The modification of PC client 3 can also achieve the purpose of this solution by replacing it with a cloud server or a portable terminal.

[0074] as figure 1 The modification of the PC client 3 and the PMU2 are connected in a wireless mode to exchange information, which can also achieve the purpose of this solution.

[0075] Such as figure 2 As shown, it is a schematic diagram of the upgrade structure of a single machine. The system includes: communication interface circuit, main CPU, sub CPU and external flash; the main CPU is connected ...

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PUM

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Abstract

An embodiment of the invention provides a double-CPU system and a program updating method thereof. The method has the advantages that correct and complete transmission and saving of an updating file can be guaranteed, and synchronous updating of multiple computers can be achieved; by using communication between a main CPU and an auxiliary CPU, a program updating function of the main CPU to the auxiliary CPU is achieved, the switching interface circuit of an original design is simplified, and cost is lowered; in consideration of randomness of abnormality in updating, the method can guarantee that self-rebooting can be performed for continuing updating after system updating is interrupted by abnormality, actual reliable updating is achieved, the method is compatible with a field manual updating function, product updating and maintenance are facilitated to the maximum extent, good transportability is achieved, and updating success rate and efficiency are both considered comprehensively, and certain practical and reference value in the field of remote program updating are achieved.

Description

technical field [0001] The invention relates to a remote online upgrading technology, in particular to a method for remotely upgrading programs of a dual-CPU system. Background technique [0002] Firmware (also known as program) is the software solidified in the hardware. The stored program is the software instruction set running on the driver. It stores the most basic parameters of the hardware equipment in the computer (control chip MCU) system. Provide the lowest and most direct hardware control. The function of the program is somewhat similar to the BIOS on the motherboard. During the boot process, the system will first read the initialization information of its internal hardware devices, so that the operating system can correctly identify the hardware and provide the most basic basis for the operation of other software. [0003] Firmware is stored in hardware, and usually the programs stored in these hardware cannot be directly read or modified by users. Usually there...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/445
Inventor 李白龙廖小俊舒成维袁帅李世军
Owner JIANGSU EVER SOLAR NEW ENERGY CO LTD
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