基于FPGA的双流水线高速存储方法

发布时间：2018-08-12 11:57

【摘要】：在图像数据采集中,存储体系需要满足对图像数据持续高速存储的要求。针对某图像信息处理器的性能测试需求,开发了图像数据的高速并行化存储体系。为了实现200 MB/s的持续存储速度,借鉴并行化扩展的思路,设计了一种结构为5×8的多通道NAND Flash存储阵列。以状态机实现通道内和通道间的流水线设计,通过双流水线形式的并行工作模式,充分发挥每个NAND Flash的存储性能以实现图像数据的持续高速存储。采用XC6SLX150作为主控单元,以FPGA内部丰富的RAM资源进行数据缓冲,设计满足200 MB/s存储速度,实际性能测试达到450 MB/s。测试结果表明该方法通用性强,便于扩展存储容量和提高存储速度,为存储体系设计提供了一种新的思路。
[Abstract]:In image data acquisition, the storage system needs to meet the requirements of image data storage. A high speed parallel storage system for image data is developed to meet the performance test requirements of an image information processor. In order to realize the sustained storage speed of 200 MB/s, a multi-channel NAND Flash memory array with 5 脳 8 architecture is designed by using the idea of parallelization expansion. The state machine is used to design the pipeline in and between channels, and the storage performance of each NAND Flash is brought into full play through the parallel working mode in the form of dual pipeline to realize the continuous high-speed storage of image data. The XC6SLX150 is used as the main control unit and the rich RAM resource in FPGA is used to buffer the data. The design meets the storage speed of 200 MB/s, and the actual performance test reaches 450 MB / s. The test results show that the method is universal, easy to expand storage capacity and improve storage speed, and provides a new idea for the design of storage system.
【作者单位】：中北大学电子测试技术国家重点实验室;中国运载火箭技术研究院;
【基金】：国家自然科学基金资助项目(51225504)
【分类号】：TP333

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