基于FPGA和NAND Flash的嵌入式存储系统设计

Design of Embedded Storage Device Based on FPGA and NAND Flash

为了有效解决恶劣工作环境下对体积有特殊要求的数据存储问题,设计了基于FPGA和NAND Flash的小尺寸嵌入式存储系统。系统选用FPGA为控制核心,以NAND Flash作为存储介质,采用LVDS接口存储和回放数据,通过以千兆网与计算机通信,以文件方式管理数据,并采用坏块管理和ECC技术保证数据完整性。实测表明,该系统具有高带宽、体积小等特点,同时具有实时存储、回放、加载、卸载和管理功能,并可在恶劣环境下稳定工作。

A small size embedded storage system based on FPGA and NAND Flash is designed for special data storage requirements in size under harsh working conditions. The system selects FPGA as the control core,NAND flash as the storage medium,and LVDS interface for data storages and replay. Communicates with computers are performed via gigabit network,and data are managed as files with data integrity guaranteed by bad-block management and ECC technology. The experimental results show that the system has the characteristics of high bandwidth and small size,is capable of real-time storage,replay,loading,unloading and management,and can work steadily in the harsh environment.