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A firmware upgrade method and system for a dual CPU system

A firmware upgrade and upgrade instruction technology, applied in the computer field, can solve problems such as high cost and complex upgrade circuit structure, and achieve the effect of reducing equipment cost and simplifying firmware upgrade.

Active Publication Date: 2021-11-02
JIHUA LAB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, for an embedded system with dual CPUs, in order to realize the program upgrade of the two CPUs, two upgrade circuits are usually set to be used to upgrade the firmware of the two CPUs respectively, so that the upgrade circuit structure of the embedded system is relatively complex and expensive

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  • A firmware upgrade method and system for a dual CPU system
  • A firmware upgrade method and system for a dual CPU system
  • A firmware upgrade method and system for a dual CPU system

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Embodiment Construction

[0048] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0049]In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating o...

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Abstract

The present invention provides a firmware upgrade method and system for a dual-CPU system. When upgrading the firmware of the first CPU, the first new application program is directly copied to the first Flash; A CPU copies the second Bootloader program in the first Flash to the shared RAM through the first Bootloader of the first Flash, then copies the second new application program to the shared RAM, and then passes the second CPU through the shared RAM. The second Bootloader copies the second new application program into the second Flash; thus, there is no need to separately set up an independent upgrade circuit for the second CPU, which can effectively realize the firmware upgrade of the two CPUs, simplify the upgrade circuit structure, and reduce equipment costs.

Description

technical field [0001] The invention relates to the field of computers, in particular to a firmware upgrade method and system for a dual-CPU system. Background technique [0002] Firmware (Firmware, also known as program) is the software solidified in the hardware (in the main control chip CPU). The stored program is the software instruction set running on the driver, and usually stores the most basic hardware equipment in the embedded system. Parameters provide the lowest and most direct hardware control for the system. During the startup process of the embedded system, 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] With the development of technology, it has become an urgent demand for users to upgrade the firmware of the embedded system to adapt to the constantly upgrading hardware envi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F8/654G06F9/54G06F9/4401
CPCG06F9/4401G06F9/544G06F8/654
Inventor 马青林王宏邓锦祥罗凌云胡荏
Owner JIHUA LAB