storage.h

一种文件系统的结构

#ifndef	_STORAGE_
#define _STORAGE_
//--------------------------------------------------------------------------------
extern	xdata	U8	gc_CodeStatus;
extern	xdata	U8	gc_CurrentExistMedia;
extern	xdata	U8	gc_DOS_FileSystemType;
extern	xdata	U8	gc_DOS_SectorPerCluster;
extern	xdata	U16	gw_DOS_SectorSize;
extern	xdata	U32	gdw_DOS_SectorPerFAT;
extern	xdata	U32	gdw_DOS_RootDirAddr;
extern	xdata	U32	gdw_CARD_TotalSizeMB;
extern	xdata	U32	gdw_DOS_Fat1Addr;
extern	xdata	U32	gdw_DOS_Fat1EndAddr;
extern	xdata	U32	gdw_DOS_Fat2Addr;
extern	xdata	U32	gdw_DOS_DataAddr;
extern	xdata	U32	gdw_DOS_RootDirClus;
extern	xdata	U32	gdw_DOS_FatMaxCluster;
extern	xdata	U32	gdw_DOS_Fat1BlockSector;
extern	xdata	U32	gdw_DOS_Fat1EndBlockSector;
extern	xdata	U32	gdw_DOS_Fat1BlockSectorAddr;
extern	xdata	U32	gdw_DOS_Fat1EndBlockSectorAddr;

extern	code	U8	FAT_String[];

extern	void	FlashExchang(U8 ActFlash, U8 InactFlash,U8 PageSize);
extern	bit		USR_Check_Character(U8 *SourceArray,U8 offset,U8 *CompareArray,U8 NumU8);
extern	U8		DOS_Initialize(void);
extern	U8		SMC_STORAGE_Initialize(void);
#endif