Method for resetting memory in computer system

Abstract

A method for resetting a memory in a computer system comprises the steps that the computer system is started, and a memory controller of the computer system executes a starting program to initialize the memory; after the memory controller executes the starting program, the memory controller can update a programmable initialization program according to the starting program, so an updated programmable initialization program is generated; after resetting of the computer system, the memory controller executes the updated programmable initialization program to recover the memory to a preset state; after recovery of the memory to the preset state, the memory controller re-executes the starting program to initialize the memory; and after initialization of the memory, the memory controller makes the memory to execute an operation program.

Description

technical field [0001] The present invention relates to a method for resetting a memory in a computer system, in particular to a method for resetting a memory that can ensure that the memory is correctly initialized during the resetting process. Background technique [0002] Generally speaking, when the computer system is turned on, its memory will be initialized. After the memory is initialized, the computer system can control the memory through the memory controller, and make the memory read and write in the mode required by the system. . When the user resets the computer system, the memory must also be reset and returned to the original default state, so that the computer system can operate the memory again. In the prior art, the reset process of the memory may be implemented by hardware. For example, the memory element may include a reset pin, and the memory controller only needs to trigger the memory to enter the reset through the reset pin of the memory. configuratio...

AI Technical Summary

Problems solved by technology

However, the timing of computer system reset may be different, and before the computer system is reset, the state of the memory may also be different. For example, the memory may receive reads and writes through two channels or four channels according to the needs of the system. At this time, if the memory controller still controls the memory according to the fixed reset instruction, it may not be able to reset the memory normally because the number of channels used is different.

If the memory cannot be reset normally, the computer system will not be able to re-initialize the memory normally. As a result, the computer system will no longer be able to read and write to the memory after resetting.

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