基于均衡损耗的数据存储系统设计  

Design of data storage system based on balanced loss

作　　者：任勇峰[1] 王继贤 刘利鹏 REN Yongfeng;WANG Jixian;LIU Lipeng(State Key Laboratory of Electronic Test Technology,North University of China,Taiyuan 030051,China)

机构地区：[1]中北大学电子测试技术国家重点实验室,太原030051

出　　处：《集成电路与嵌入式系统》2024年第10期42-48,共7页Integrated Circuits and Embedded Systems

摘　　要：针对目前存储器使用寿命短、成本高的问题,选择使用国产微控制器GD32降低成本,采用均衡损耗算法延长存储器寿命,设计了大容量数据存储系统。系统以GD32为控制核心,两片NAND Flash为存储介质,通过GD32自带的EXMC接口进行连接,使用两路RS422与上位机进行数据通信,一路传输存储数据,一路进行命令控制,利用上位机控制存储器的状态,通过均衡损耗算法控制NAND Flash块的磨损程度。经过测试,系统存储容量达到32 GB,写入速度达到1 MB/s,NAND Flash使用寿命提高,性能稳定,能够满足长时间使用、大容量数据存储的需要。In response to the current problems of short lifespan and high cost in storage devices,we chose to use the domestic microcontroller GD32 to reduce the cost,and adopted the equalization loss algorithm to extend the memory lifespan,and designed a high-capacity data storage system.The system takes GD32 as the control core,with two pieces of NAND Flash as the storage media,connected through the EXMC interface that comes with GD32,and uses two RS422 to communicate with the host computer for data:one way to transmit the storage data,and the other for the command control.The host computer manages the storage status and controls the wear and tear of the NAND Flash block through the balanced loss algorithm.After testing,the system reaches a storage capacity of 32 GB,and a writing speed of 1 MB/s.The service life of NAND Flash is improved,ensuring stable performance and meeting the requirements for long-term,high-capacity data storage.

关 键 词：GD32 均衡损耗 NAND Flash 坏块管理 数据存储 

分 类 号：TN98[电子电信—信息与通信工程]