nandflash.h

LPC2292 bios测试程序 说明：YL_LPC229X_BIOS_Data的目录说明

#ifndef _FLASH_H_
#define _FLASH_H_

#define NandFlash_DEBUG		1

//#define MAX_BLOCKS_NUM	  2048   // k9f5608 32MU8 2048 
#define MAX_BLOCKS_NUM  	1024   // k9f2808 16MU8 1024 

#define K9F2808	(0xec73)
#define K9F3208	(0xece3)
#define KM29U128_ID 	(0xec75)		//ID  28f08 0xec73    56f08  0xec75

//	assign SMC_nRD     = ! ( (!nGCS2) &&				( ADDR[22]) && ( ADDR[23]) ) ; 
//	assign SMC_nWE     = ! ( (!nGCS2) &&				( ADDR[22]) && ( ADDR[23]) ) ; 

//NandFlash.R/B		<----->		P018   输入
//NandFlash.CE		<----->		P019   输出
//NandFlash.CLE		<----->		ADDR1
//NandFlash.ALE		<----->		ADDR2

//#define	SEL_SMART_MEDIA_CARD

#define	NandFlash_DATA	0x820000a0
#define	NandFlash_ALE	0x820000a4
#define	NandFlash_CLE	0x820000a2

#define NandFlash_Chip_Enable	  ( IO0CLR =  IO0CLR|(1<<19) )
#define NandFlash_Chip_Disable	  ( IO0SET = IO0SET|(1<<19) )

#define	READCMD0	0
#define	QUERYCMD	0x70

#define NandFlash_WR_CLE	  ( *(volatile U8 *)NandFlash_CLE )
#define NandFlash_WR_ALE	  ( *(volatile U8 *)NandFlash_ALE )
#define NandFlash_WR_DATA	  ( *(volatile U8 *)NandFlash_DATA )

#define ReadyBusy  ( 1<<18 )
#define NandFlash_ReadyBusy  (IO0PIN & ReadyBusy)  //wait tWB and check R/B pin.

#define NF_WRITE_PAGE_VERIFY	 (0)			 //Verifing is enable when writing flash

/*KM29U128函数声明*/
extern void Flash_Reset( void );//flash reset
extern unsigned short Check_Flash_Id( void );
extern unsigned char nfwritepage( unsigned short pageWord , unsigned char* buf );
extern void nfreadpage( unsigned short pageWord , unsigned char* buf );
extern unsigned char nferaseblock( unsigned int cluster ); 
extern unsigned char NandFlash_Self_Test( void ) ;

#endif