探空火箭数据存储设备设计与实现  

Design of data storage system for sounding rockets

作　　者：吴春静[1,2] 周盛雨[2] 魏本杰[2] 许睿[1,2] 

机构地区：[1]中国科学院大学,北京100190 [2]中国科学院空间科学与应用研究中心,北京100190

出　　处：《电子设计工程》2015年第10期51-53,56,共4页Electronic Design Engineering

摘　　要：针对目前航天探测中大量科学数据存储的问题,设计了兼顾存储容量大和缓存速度快两大特点的探空火箭数据存储系统。CPU采用TI最新推出的TMS570LS3137,数据存储系统的设计主要是利用该芯片的EMIF模块和SPI模块。外部存储器接口(EMIF)提供较大的寻址空间可以扩展多个外接板卡,选用SDRAM作为高速缓存的核心部件,SPI接口模块直接与SD卡卡槽相连接,选用SD卡作为大容量存储设备。给出了部分软件设计流程图以及系统测试结果图,测试结果显示该系统实现了设计目的,在航天工程领域具备一定的利用价值。Aiming at the problem that large number scientific data storage, this paper proposes a data storage system for sounding rockets, taking into account the features of the large storage capacity and high speed caching. This system uses TMS570LS3137 produced by TI as CPU. EMIF and SPI modules are mainly used in the design of the data storage system. EMIF interface provides external modules with addressing space. SDRAM is selected as a core member in cache. As SPI interface module directly connect with SD card slot, SD card is used for mass storage device. It lists some soft- ware flow charts and the result figure of system tests. This system can achieve the purpose of the design and has some value in aerospace applications.

关 键 词：TMS570LS3137 数据存储 SDRAM SD卡 

分 类 号：TN-9[电子电信]