移植前做了大量準備，在網(wǎng)上尤其是原子論壇翻看各種其他人移植的心得，去fatfs的官方網(wǎng)站下載0.10版本的程序，看各種相關(guān)的移植心得，文檔版本眾多，眼花繚亂，花了點時間看了看一些函數(shù)?？吹貌畈欢嗔耍椭苯影?.10的版本考到自己的工程目錄下開始make，經(jīng)過大量的翻閱和實踐，要動的地方只有diskio.c和ffconfig.h，第一個需要把底層驅(qū)動函數(shù)sd_inti();添加進去。sd卡的讀單塊和讀多塊，寫單塊寫多塊填進去，ffconfig.h里邊需要改幾個宏定義的值參照別人的例程就可以實現(xiàn)很簡單。

DSTATUS disk_initialize (
BYTE drv/* Physical drive nmuber (0..) */
)
{


u8 state;
state=SD_Init();
if(!state){
return STA_NODISK;
}
return 0;
}

/*-----------------------------------------------------------------------*/
/* Return Disk Status */

DSTATUS disk_status (
BYTE drv/* Physical drive nmuber (0..) */
)
{return 0;
}

/*-----------------------------------------------------------------------*/
/* Read Sector(s) */

DRESULT disk_read (
BYTE drv,/* Physical drive nmuber (0..) */
BYTE *buff,/* Data buffer to store read data */
DWORD sector,/* Sector address (LBA) */
BYTE count/* Number of sectors to read (1..255) */
)
{
u8 res=0;


if(count==1) //1個sector的讀操作
{
res = SD_ReadSingleBlock(sector, buff);
//res= SD_ReadDisk(buff,sector,count);
}
else //多個sector的讀操作
{
res = SD_ReadMultiBlock(sector, buff, count);
}

//處理返回值，將SPI_SD_driver.c的返回值轉(zhuǎn)成ff.c的返回值
if(res == 0x00)
{
return RES_OK;
}
else
{
return RES_ERROR;
}
}

/*-----------------------------------------------------------------------*/
/* Write Sector(s) */

#if _READONLY == 0
DRESULT disk_write (
BYTE drv,/* Physical drive nmuber (0..) */
const BYTE *buff,/* Data to be written */
DWORD sector,/* Sector address (LBA) */
BYTE count/* Number of sectors to write (1..255) */
)
{
u8 res;

// 讀寫操作
if(count == 1)
{
res = SD_WriteSingleBlock(sector, buff);;
}
else
{
res = SD_WriteMultiBlock(sector, buff, count);
}
// 返回值轉(zhuǎn)換
if(res == 0)
{
return RES_OK;
}
else
{
return RES_ERROR;
}
}
#endif /* _READONLY */