eMMC高速阵列双备份智能存储系统  

High-speed Array Dual-backup Intelligent Storage System Based on eMMC

作　　者：王洋[1] 张会新[1] 闫文璇 姚玉林 Wang Yang;Zhang Huixin;Yan Wenxuan;Yao Yulin(Key Laboratory of Micro/Nano Devices and Systems,Ministry of Education,North University of China,Taiyuan 030051,China;No.91515 Unit of PLA)

机构地区：[1]中北大学微纳器件与系统教育部重点实验室,太原030051 [2]中国人民解放军91515部队

出　　处：《单片机与嵌入式系统应用》2023年第11期45-48,58,共5页Microcontrollers & Embedded Systems

基　　金：国家自然科学基金青年科学基金项目(51705475)。

摘　　要：针对传统存储器使用单份eMMC进行存储时存在的传输速率较低、可靠性较差和智能化水平较低等问题,设计了一种基于eMMC高速阵列双备份智能存储系统。通过将4片容量为64 GB、型号为KLMCG8GESD B04Q的三星eMMC芯片分成两份组成阵列,采用并行操作方式进行双备份存储。同时加入了断电续存的功能,即使出现系统偶然瞬时断电,也不会出现已存储的数据被覆盖的问题。试验测试与数据分析结果表明,该系统写入速度为152 MB/s,读出速度为83 MB/s,存储容量为118 GB。即使在有限数量eMMC失效的情况下,存储器仍能满足航天飞行记录器的各项技术指标要求。Aiming at the problems of slow transmission rate,low reliability and poor intelligence of traditional memory using single copy eMMC,an eMMC high-speed array-based double backup intelligent storage system is designed.By dividing four 64 GB Samsung eMMC chips KLMCG8GESD B04Q into two arrays,it uses parallel operation for dual-backup storage.It also adds the function of power failure renewal.Even if there is an occasional transient power failure of the system,it don’t cause the stored data to be overwritten.The test and data analysis results show that the write speed is 152 MB/s,the read speed is 83 MB/s,and the storage capacity is 118 GB.Even if a lim-ited number of eMMC are damaged,the memory is still able to fulfill the technical requirements of the space flight recorder.

关 键 词：eMMC 高速阵列存储 KLMCG8GESD B04Q 断电续存 

分 类 号：TN914[电子电信—通信与信息系统]