求助：FatFs系统中，NAND无法挂载、格式化的问题

1楼-- · 2019-07-20 16:26

本帖最后由 weihua8206 于 2017-7-19 13:38 编辑

代码如下所示：其中FTL的函数完全是按照原子哥的例程做的

/* Private function prototypes -----------------------------------------------*/
DSTATUS NAND_initialize (void);
DSTATUS NAND_status (void);
DRESULT NAND_read (BYTE*, DWORD, BYTE);

#if _USE_WRITE == 1
  DRESULT NAND_write (const BYTE*, DWORD, BYTE);
#endif /* _USE_WRITE == 1 */

#if _USE_IOCTL == 1
  DRESULT NAND_ioctl (BYTE, void*);
#endif /* _USE_IOCTL == 1 */

Diskio_drvTypeDef  NAND_Driver =
{
  NAND_initialize,
  NAND_status,
  NAND_read,
#if  _USE_WRITE == 1
  NAND_write,
#endif /* _USE_WRITE == 1 */
#if  _USE_IOCTL == 1
  NAND_ioctl,
#endif /* _USE_IOCTL == 1 */
};
DSTATUS NAND_initialize(void)
{
if(FTL_Init())  {return RES_ERROR;}
else          {return RES_OK;}
}

DSTATUS NAND_status(void)
{
  DRESULT res = RES_ERROR;

  if(NAND_ReadStatus() == NAND_READY)
  {
res = RES_OK;
  }
  else
  {
res = RES_ERROR;
  }

  return res;
}

DRESULT NAND_read(BYTE *buff, DWORD sector, BYTE count)
{
DRESULT res = RES_ERROR;
res = FTL_ReadSectors(buff,sector,512,count); //读取数据

if(res == 0x00)    {return RES_OK;}
else                {return RES_ERROR;}
}

#if _USE_WRITE == 1
DRESULT NAND_write(const BYTE *buff, DWORD sector, BYTE count)
{
DRESULT res = RES_ERROR;
res=FTL_WriteSectors((u8*)buff,sector,512,count);//写入数据

if(res == 0x00)    {return RES_OK;}
else                {return RES_ERROR;}
}
#endif /* _USE_WRITE == 1 */

#if _USE_IOCTL == 1
DRESULT NAND_ioctl(BYTE cmd, void *buff)
{
DRESULT res = RES_ERROR;
switch(cmd)
{
case CTRL_SYNC:
res = RES_OK;
break;
case GET_SECTOR_SIZE:
*(WORD*)buff = 512; //NAND FLASH扇区强制为512字节大小
res = RES_OK;
break;
case GET_BLOCK_SIZE:
*(WORD*)buff = nand_dev.page_mainsize/512;//block大小,定义成一个page的大小
res = RES_OK;
break;
case GET_SECTOR_COUNT:
*(DWORD*)buff = nand_dev.valid_blocknum*nand_dev.block_pagenum*nand_dev.page_mainsize/512;//NAND FLASH的总扇区大小
res = RES_OK;
break;
default:
res = RES_PARERR;
break;
}
}
#endif /* _USE_IOCTL == 1 */