FAT12文件系统驱动，C语言编写的驱动，适用于容量小于8M的存储器使用；已经写好了创建，查找、删除等函数，其中还有关于SD卡协议及FAT16的结构介绍；-FAT12 file system drive, C language driver for the use of memory capacity is less than 8M has written to create, find, delete and other functions, which are on the SD card