一种高速大容量图像存储装置的关键技术研究  

Research on key technology of a high-speed and large-capacity image storage device

作　　者：赵俊江 张会新[1,2] ZHAO Junjiang;ZHANG Huixin(National Key Laboratory for Electronic Measurement Technology,North University of China,Taiyuan 030051,China;MOE Key Laboratory of Instrumentation Science & Dynamic Measurement,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,山西太原030051 [2]中北大学仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《现代电子技术》2017年第12期144-147,151,共5页Modern Electronics Technique

基　　金：国家自然科学基金(51425505)

摘　　要：针对高速图像采集存储要求,设计一种高速大容量存储装置。该装置以FPGA为主控芯片,以FPGA内部集成的高速串行收发器Rocket I/O GTP作为图像数据接收单元,通过FPGA控制MCB硬核操作2片DDR2 SDRAM构成兵乓缓存单元,以32片NAND FLASH组成的阵列为存储单元,采用交叉双平面页编程技术对FLASH进行数据存储。实现了对3个速率为50 MB/s的图像通道数据实时采集存储。通过对FLASH阵列中的图像数据进行回读分析,测试结果无误,验证了系统功能的有效性和可靠性。Aiming at the high?speed image acquisition and storage requirements,a high?speed and large?capacity storage device was designed.The FPGA is regarded as the main?control chip of the device.The high?speed serial transceiver Rocket I/O GTP integrated into FPGA is taken as the image data receiving unit.The MCB hard?core is controlled with FPGA to operate two chips of DDR2SDRAM to compose the ping?pong buffer unit.The array composed of32NAND FLASHs is employed as the memory cell.The interleave two?plane page programming technology is used to storage data in FLASH.The real?time data acquisition and storage of three image channels in the speed of50MB/s were realized..The read?back analysis is performed for image data in FLASH array to verify the validity and reliability of the system with correct test results.

关 键 词：图像存储 RocketI/OGTP DDR2SDRAM 乒乓缓存 交叉双平面页编程 

分 类 号：TN911.73.34[电子电信—通信与信息系统] TP274[电子电信—信息与通信工程]