摘要
介绍了在嵌入式系统中一种基于SPI协议实现对SD卡的扩展方法,结合Fat Fs文件系统,使小型嵌入式系统也能容易、方便地扩展大容量存储器。并在STM32上成功移植,打开SD卡中TXT文本,并通过串口输出文本中的内容。
This paper introduced a method of extension SD card based on the SPI protocols. Combining with the Fat Fs file system, the small embedded system can easily, conveniently extend mass storage. Finally in the STM32 minimum system, the transplantation of Fatfs file system is implemented, and open the SD card in TXT text files, through the serial port and output the contents of the text.
出处
《微型机与应用》
2014年第19期23-26,共4页
Microcomputer & Its Applications
基金
2014年陕西省科学技术发展计划项目(农业科技创新与攻关专项)(2014K02-09-01)
