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Method for adaptive detecting configuration by SDRAM

An adaptive detection and data technology, applied in the direction of information storage, static memory, digital memory information, etc., can solve the problems of poor versatility, affecting the progress and efficiency of research and development, so as to improve the versatility, improve the efficiency of research and development, and save time Effect

Active Publication Date: 2012-02-29
电子创新中国有限责任公司
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Problems solved by technology

It can be seen from this that this configuration method is not universal, which affects the development progress and efficiency

Method used

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  • Method for adaptive detecting configuration by SDRAM
  • Method for adaptive detecting configuration by SDRAM
  • Method for adaptive detecting configuration by SDRAM

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Embodiment Construction

[0036] The method for SDRAM adaptive detection configuration provided by the present invention mainly comprises: the detection configuration of SDRAM data width, the detection configuration of SDRAM column address width and SDRAM capacity size detection three parts, wherein:

[0037] The detection configuration of the SDRAM data width is to use the trial and error (Trial And Error) method to detect the data width of the SDRAM, and configure the corresponding data width parameters;

[0038] The detection configuration of the SDRAM column address width adopts the following technical scheme: write data C, C+512, C+ 1024 and C+2048, and then read back the data from the start address B, and detect the column address width of SDRAM according to whether the read back and written data are equal, so as to complete the setting of the column address width;

[0039] The SDRAM capacity detection adopts the following technical scheme: write A to the start address B of SDRAM, write C and D a...

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Abstract

The invention discloses a synchronous dynamic random access memory (SDRAM) self-adapting detection and configuration method, including: performing detection and configuration to the SDRAM data width; performing detection and configuration to the SDRAM column address width; and performing detection and configuration to SDRAM capacity size. Compared with the prior art, the inventive method improvesthe universality of the SDRAM configured code, realizes the self-adapting configuration of SDRAM data width, the width of column address and the capacity size, so that it is not needed to change the configured codes of the SDRAM data width, column address width and capacity size during replacement of the system SDRAM or code transplantation, thereby saving time and improving the efficiency of theresearch and development.

Description

technical field [0001] The present invention relates to the technical field of electronic equipment development, and more specifically, to a method for realizing self-adaptive detection of data width, column address width and capacity of SDRAM (Synchronous Dynamic Random Access Memory, synchronous dynamic random access memory) on electronic equipment The method of configuration. Background technique [0002] With the rapid development of modern electronic technology, electronic equipment has become an indispensable part of people's life and work. At the same time, people's demand for electronic equipment is also growing at an unprecedented rate, which puts forward higher requirements for the development speed of electronic equipment. [0003] SDRAM is an important part of electronic equipment, and its read and write operations are mostly realized by the controller. Before reading and writing, it needs to be configured. The configuration is mainly used to complete its timing...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11C11/413G11C29/00
Inventor 刘世卫唐建国
Owner 电子创新中国有限责任公司
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