A method and apparatus for determining a refresh frequency of an ECC memory

A technology of refresh frequency and memory, applied in the direction of instruments, response error generation, electrical digital data processing, etc., can solve problems such as shortage, achieve the effect of optimizing design, improving anti-soft error ability, and enhancing reliability

Pending Publication Date: 2019-04-19
CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST THE FIFTH ELECTRONICS RES INST OF MIITCEPREI LAB
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  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a method for determining the refresh frequency of the ECC memory

Method used

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  • A method and apparatus for determining a refresh frequency of an ECC memory
  • A method and apparatus for determining a refresh frequency of an ECC memory
  • A method and apparatus for determining a refresh frequency of an ECC memory

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Embodiment Construction

[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein in the description of the present invention are for the purpose of descr...

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Abstract

The invention relates to a method and an apparatus for determining a refresh frequency of an ECC memory. The invention provides a method for determining the refresh frequency of an ECC (Error Correction Code) memory. The method comprises the following steps of: obtaining a function relationship between an actual soft error rate and the refresh frequency of a storage region of the ECC memory; And determining the refresh frequency of the ECC memory according to the function relationship. According to the method, the optimal design of the refresh frequency is realized by obtaining the function relationship between the actual soft error rate and the refresh frequency of the storage area of the ECC memory and determining the refresh frequency of the ECC memory according to the function relationship; The soft error rate of the ECC memory can be reduced without occupying system resources excessively, it is guaranteed that the soft error rate of the ECC memory meets the actual engineering requirement, the soft error resistance of a storage area of the ECC memory is effectively improved, and the reliability of the ECC memory and a system applying the ECC memory is enhanced. The invention also provides a device for determining the refresh frequency of the ECC memory and a computer readable storage medium.

Description

technical field [0001] The invention relates to the field of reliability of electronic devices, more particularly to a method and a device for determining the refresh frequency of an ECC memory. Background technique [0002] Soft errors will occur during the use of the memory. The causes of soft errors include radiation particles (α particles, neutrons, protons, heavy ions, etc.), random noise, signal integrity problems, manufacturing or design defects, and critical units. When a soft error occurs, it will cause changes in the stored data in the memory, affecting the correctness of the output data, and further affecting the system operation. [0003] ECC (error correcting code) refers to adding some check bits on the basis of the original memory data bits to detect and correct soft errors. One of the most commonly used ECC codes is the Hamming code, which can realize the function of correcting one-bit errors and detecting two-bit errors, that is, "correcting one and checkin...

Claims

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Application Information

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IPC IPC(8): G06F11/10
CPCG06F11/1012G06F11/1044
Inventor 张战刚雷志锋彭超何玉娟黄云恩云飞
Owner CHINA ELECTRONICS PROD RELIABILITY & ENVIRONMENTAL TESTING RES INST THE FIFTH ELECTRONICS RES INST OF MIITCEPREI LAB
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