摘要
本文首先介绍了C8051F015单片机通过SPI接口与MMC卡的连接。在分析了MMC卡读写机制及FAT文件系统特点的基础上,实现了FAT16基本文件操作的C函数集,为具有SPI接口的单片机进行存储扩展提供了底层支持。
This paper introduced the connection between C8051F015 and MMC via SPI interface. C function collection about FATI6 basic file opteration was realized after the analysis of the MMC read/write mechanism and the FAT characteristics. The collection provided bottom support of memory expansion on MCU which have been embedded in SPI interface.
出处
《现代计算机》
2006年第7期94-96,109,共4页
Modern Computer
