Load method using read-only memory

A technology of read-only memory and access path, which is applied in the loading field of selecting read-only memory, which can solve the problems of time-consuming and inconvenient, and achieve the effect of shortening the development time.

Active Publication Date: 2019-03-05
MITAC COMP (SHUN DE) LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the ROM is only used for testing, and the process of repeatedly burning the entire BIOS for testing is time-consuming and inconvenient.

Method used

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Embodiment Construction

[0012] The following describes embodiments or examples shown in icons in specific ways. But it should be understood that this embodiment or example is not intended to be limiting. Any replacement and modification of the embodiments of the present invention, as well as any further application of the principles of the present invention, can be completed by those skilled in the field of the present invention with reference to the description of the present invention.

[0013] FIG. 1 is a schematic diagram showing an electronic device 10 according to an embodiment of the present invention. As shown in FIG. 1, the electronic device 100 includes a memory unit 110 and a processing unit 120. The memory unit 110 stores a basic input and output unit 112 (hereinafter referred to as BIOS 112), wherein the BIOS 112 also includes a preset optional read-only memory ( Option ROM) 114. When the electronic device 100 is turned on, the processing unit 120 obtains the BIOS 112 from the memory u...

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Abstract

A load method using read-only memory is provided. The invention is suitable for electronic device with processing unit and memory unit. The memory unit stores BIOS, and the BIOS includes a preset read-only memory. The method comprises the following steps: when the replacement function is enabled, executing BIOS through the processing unit to perform the following steps: judging whether there is replacement index table in the storage device; When the storage device has the replacement index table, it is judged whether the identifier of the default selected ROM coincides with the identifier of the replacement selected ROM in the replacement index table. When the match occurs, the replacement index table is parsed to obtain the access path, and the replacement ROM is loaded through the obtained access path for execution. When there is a mismatch, the load preset selects read-only memory to execute.

Description

technical field [0001] The invention relates to a method for loading an optional read-only memory (Option ROM), in particular to a method for loading an optional read-only memory from a storage device. Background technique [0002] At present, in the technical field of Basic Input Output System (BIOS), in order to enable electronic devices (such as personal computers or servers) to use other hardware devices (such as display adapters or network cards, etc.) The BIOS memory (Electronic Erasable Rewritable Read-Only Memory (EEPROM) or Flash memory (Flash memory)) is stored in the required optional read-only memory (Option-ROM). When the electronic device starts and executes the BIOS for self-test (POST) During the boot process, such as initializing basic hardware devices, the optional read-only memory will be loaded to drive the corresponding hardware devices. That is to say, the optional read-only memory (Option-ROM) is actually the firmware called by the BIOS of the electro...

Claims

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Application Information

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IPC IPC(8): G06F8/61
CPCG06F8/61
Inventor 段文华
Owner MITAC COMP (SHUN DE) LTD
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