Display card basic input output system (BIOS) updating method based on input/output (IO) access mode

An access method and update method technology, applied in the field of graphics card research and development, can solve the problems of update failure, error-prone, and the application program cannot access the extended ROM, etc., to achieve the effect of simple operation and shortening of the development cycle.

Inactive Publication Date: 2013-05-15
NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, after the video card expansion ROM mapping is completed, since the expansion ROM has been disabled, and the memory address space originally allocated to the expansion ROM is reclaimed by the operating system, it is impossible for the application to access the expansion ROM through conventional memory access methods
In addition, the traditional process of updating the graphics card BIOS under DOS is cumbersome and lengthy, and is prone to errors, resulting in update failure and even irreparable hardware damage.

Method used

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  • Display card basic input output system (BIOS) updating method based on input/output (IO) access mode
  • Display card basic input output system (BIOS) updating method based on input/output (IO) access mode

Examples

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Embodiment Construction

[0018] refer to figure 2 , the present invention is based on the graphics card BIOS updating method of IO access method preferred embodiment and comprises the following steps:

[0019] 201: After starting the Microsoft Windows operating system, the graphics card BIOS update program first selects and locates the graphics card according to the vendor identification number (Vendor ID) and device identification number (Device ID). The default vendor identification number and device identification number are set in the graphics card BIOS update program. If the default setting is consistent with the vendor identification number and device identification number of the graphics card to be updated, no need to make another selection; otherwise, it is necessary to further enter the vendor identification number of the graphics card to be updated. and device identification number to locate the graphics card to be updated.

[0020] 202: Determine whether the PCI configuration space comman...

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Abstract

Provided is a display card basic input output system (BIOS) updating method based on an input/output (IO) access mode. The display card BIOS updating method based on the IO access mode comprises the following steps: starting a Microsoft Windows operating system and executing an updating program; selecting and positioning a to-be-updated display card according to a vendor identification number and a device identification number; judging whether a command register of peripheral component interconnect (PCI) configuration space of the to-be-updated display card enables IO access or not, reading an old BIOS in an expanded read only memory (ROM) of the to-be-updated display card through the IO access mode; writing a new BIOS into the expanded ROM of the to-be-updated display card through the IO access mode; reading the new BIOS in the expanded ROM of the to-be-updated display card through the access mode and completing calibration; and exiting the updating program and restarting the Microsoft Windows operating system. The display card BIOS updating method based on the IO access mode is capable of completing update of the display card BIOS conveniently, rapidly and reliably.

Description

technical field [0001] The invention relates to the field of graphics card research and development, in particular to a method for simply, quickly and reliably updating a graphics card BIOS (Basic Input Output System, Basic Input Output System) in a computer system. Background technique [0002] Graphics card BIOS includes traditional VGA (Video Graphics Array, Video Graphics Array) BIOS and extended VBE (VESA BIOS EXTENSION, Video Electronics Standards Association BIOS extension), which contains the hardware control program of the graphics card, and also stores the graphics card model and specifications , manufacturer, factory date and other information, and initialize the graphics card when booting. The graphics card BIOS plays an important role in the computer system, and it affects the performance of the graphics card. [0003] Like the system BIOS, the graphics card BIOS is also stored in ROM (read-only memory). Power-on self-test (POST) is a major part of the system...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F13/20G06F9/445
Inventor 高齐黄亮张义伟秦信刚高齐
Owner NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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