基于MicroSD卡的存储系统设计

组合导航设备需要足够容量的非易失存储器，设计了一种基于国产 DSP 和 Micro SD 卡的存储系统。首先，介绍了组合导航设备存储系统的总体设计；其次，基于国产 DSP，设计了采用 SPI 模式与 Micro SD 卡通信的硬件；然后，在硬件基础上用软件实现了对 Micro SD 卡的数据读写。实际应用结果表明，设计的存储系统具有容量大，体积小，方便移植升级，有较高应用价值。

Design of Storage System Based on Micro SD Card

Integrated navigation device needs enough non-volatile memory storage capacity, and this paper designs a storage system based on domestic DSP and Micro SD card. Firstly, this paper introduces general design about the storage system of integrated navigation device. Secondly, based on domestic DSP and Micro SD card, this paper designs the storage system hardware using SPI communication protocol mode. Thirdly, based on storage system hardware, this paper designs software and realizes reading and writing data in the Micro SD card. The practical application results show that the storage system in this paper has the advantages of large capacity, small size, easy transplant and upgrade, and has a high application value.