filesystem.h

使用VC模拟一个在单片机内部FLASH的顺序文件系统

#define FILE_BASE_ADDR			0x0000				/* 文件系统从0x1E00开始	*/

#define FILE_END_ADDR			FILE_BASE_ADDR + 8*1024		/*  文件系统结尾 */

//#define USR_BASE				0x1800



#define FREE_TYPE				0
#define DIR_TYPE					1
#define FILE_TYPE					2
#define MD5_TYPE				3
#define TEA_TYPE					4

typedef struct{
	uint8 dirID[2];
	uint8 fileID[2];
	uint8 length[2];
	uint8 authority;
	uint8 type;
}FILE_HEAD;

typedef struct{
	uint16 	address;
	uint16 	length;
	uint8 	authority;
	uint8 	type;
}FILE_OPEN;

#define FILE_LOCATE_OK				0x00
#define FILE_LOCATE_ERR			0x01
#define FILE_LOCATE_END			0x02

#define FILE_LOCATE_FREE			0				
#define FILE_LOCATE_FILE			1

#define FILE_HEAD_NOT_EQU		0	
#define FILE_HEAD_EQU				1

#define FILE_LIST_OK					0
#define FILE_LIST_ERR					1



extern uint8 FILEHeadCompare();
extern uint8 FILELocateID();
extern void FILEInit();
extern uint8 FILEList(uint8 mode);
extern uint8 FILECreateItem();
extern uint8 FILELocateNext();
extern uint8 FILEDelt();

extern FILE_HEAD fileFlash[1];			
extern FILE_HEAD fileHost[1];