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为了满足使用者对海量CT图像的存储需求,设计一种存储性能优异的海量CT图像的激光三维信息存储结构。该结构主要包括FPGA、SRAM和SDRAM三种元件,提出了信息的整体与部分存储方案,SDRAM和SRAM分别负责一级缓存和二级缓存。FPGA选择Cyclone架构的FD2C13为SDRAM提供存储配置,描述了FPGA配置连接电路图,共提供7种配置方式。为SDRAM选型MT41GO7M14C3,设计出存储结构的内部存储电路,并依次对SRAM和SDRAM进行了逻辑实现。经测试可知,所设计的存储结构存储速度快、存储完整性高、存储同步性强。
In order to meet the user’s requirement for storing massive CT images, a laser three-dimensional information storage structure is designed for storing massive CT images with excellent performance. This structure mainly includes FPGA, SRAM and SDRAM three kinds of components, puts forward the overall and partial information storage scheme, SDRAM and SRAM are responsible for the first-level cache and second-level cache. FPGA Select Cyclone architecture FD2C13 SDRAM to provide storage configuration, describes the FPGA configuration connection diagram, providing a total of seven kinds of configuration. SDRAM selection MT41GO7M14C3, designed to store the internal memory circuit structure, and in turn carried out on the SRAM and SDRAM logic. The test shows that the storage structure designed to store fast, high storage integrity, storage synchronization.