星载高速大容量存储器的设计与实现
发布时间：2019-06-04 07:57
【摘要】：数据存储设备是航天领域的关键设备之一,是各类航天设备进行数据采集、存储以及在轨处理的重要的支撑平台。容量大、速度快、功耗低、抗辐照和可靠灵活一直都是星载数据存储设备的主要研究方向和目标。随着航天科技的发展,以FLASH为主要存储介质的大容量固态存储设备已经成为当今航天设备数据存储的主流方案之一。 本文依托国家863计划某重大项目课题,研究目标为基于FLASH存储介质的星载高速大容量固态存储器的设计与实现。该存储器具有大容量、高速率、非易失以及低功耗等特点,系统结构采用标准化、模块化设计,具有可移植、可扩展的特性,满足不同任务需求。 本文首先分析了国内外相关领域现状以及发展趋势,采用FLASH芯片作为基本存储介质,以FPGA为存储阵列控制核心,设计出了一种容量为1Tbits的星载高速大容量存储器。该设计方案采用了多级流水线以及数据并行处理技术,提高了读写速度,并采用基于PowerPC的嵌入式系统对FLASH芯片坏块进行处理,提高了系统整体性能,减轻了硬件设计负担。本课题的预研成果为实际研制应用于星载的高速大容量存储器以及有人参与的大规模空间应用奠定了坚实的基础,具有较好的指导和借鉴意义。
[Abstract]:Data storage equipment is one of the key equipment in the field of spaceflight. It is an important supporting platform for data acquisition, storage and in-orbit processing of all kinds of aerospace equipment. Large capacity, fast speed, low power consumption, radiation resistance and reliability and flexibility have always been the main research direction and target of on-board data storage equipment. With the development of space science and technology, large capacity solid state storage equipment with FLASH as the main storage medium has become one of the mainstream schemes of space equipment data storage. Based on a major project of the National 863 Plan, the research goal of this paper is the design and implementation of high speed and large capacity solid state memory based on FLASH storage medium. The memory has the characteristics of large capacity, high speed, non-volatile and low power consumption. The system structure is standardized, modular design, portable and extensible, to meet the needs of different tasks. In this paper, the present situation and development trend of related fields at home and abroad are analyzed. Using FLASH chip as the basic storage medium and FPGA as the memory array control core, a high speed and large capacity memory with 1Tbits capacity is designed. The design scheme adopts multi-level pipeline and data parallel processing technology to improve the speed of reading and writing, and uses the embedded system based on PowerPC to deal with the bad block of FLASH chip, which improves the overall performance of the system and reduces the burden of hardware design. The pre-research results of this subject have laid a solid foundation for the practical development of high-speed and large-capacity memory and large-scale space applications with participation, and have good guidance and reference significance.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP333
本文编号：2492580
[Abstract]:Data storage equipment is one of the key equipment in the field of spaceflight. It is an important supporting platform for data acquisition, storage and in-orbit processing of all kinds of aerospace equipment. Large capacity, fast speed, low power consumption, radiation resistance and reliability and flexibility have always been the main research direction and target of on-board data storage equipment. With the development of space science and technology, large capacity solid state storage equipment with FLASH as the main storage medium has become one of the mainstream schemes of space equipment data storage. Based on a major project of the National 863 Plan, the research goal of this paper is the design and implementation of high speed and large capacity solid state memory based on FLASH storage medium. The memory has the characteristics of large capacity, high speed, non-volatile and low power consumption. The system structure is standardized, modular design, portable and extensible, to meet the needs of different tasks. In this paper, the present situation and development trend of related fields at home and abroad are analyzed. Using FLASH chip as the basic storage medium and FPGA as the memory array control core, a high speed and large capacity memory with 1Tbits capacity is designed. The design scheme adopts multi-level pipeline and data parallel processing technology to improve the speed of reading and writing, and uses the embedded system based on PowerPC to deal with the bad block of FLASH chip, which improves the overall performance of the system and reduces the burden of hardware design. The pre-research results of this subject have laid a solid foundation for the practical development of high-speed and large-capacity memory and large-scale space applications with participation, and have good guidance and reference significance.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP333
【引证文献】
相关硕士学位论文 前1条
1 璩泽旭;高速大容量存储系统关键技术研究与实现[D];西安电子科技大学;2013年
，本文编号：2492580
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