nand_flash.h

来自「Blackfin 处理器使用GPIO模拟NAND控制器读写nandflash的源」· C头文件 代码 · 共 50 行

#define CLR_CE1 0x04
#define SET_CE1 0xFB
#define CLR_CLE 0xFE
#define SET_CLE 0x01
#define CLR_ALE 0xFD
#define SET_ALE 0x02

#define NAND_BLOCK_Increase 0x00400000

typedef union myNAND_Address_Table
{
	struct NAND_Address
		{
		unsigned NAND_Address_A0_A7   : 8;
		unsigned NAND_Address_A9_A16  : 8;
		unsigned NAND_Address_A17_A24 : 8;
		unsigned NAND_Address_A25_A26 : 2;
		}NAND_Address;
	
	unsigned int Value;	
}myNAND_Address_Table;


void delay(unsigned int DelayValue);
void Init_EBIU(void);
void Reset_NAND(void);
bool Read_Chip_ID(void);
void Create_Invalid_Blocks_Table(void);
bool Block_Erase(unsigned int Block_Address);
bool Page_Program(unsigned int Block_Address,unsigned short Page_Address);
bool Program_Verify(unsigned int Block_Address,unsigned short Page_Address);

void Write_Address(unsigned char NAND_Address0,unsigned char NAND_Address1,
				   unsigned char NAND_Address2,
				   unsigned char NAND_Address3,
				   unsigned char Valid_Address);
void Write_Command(unsigned char command);
void Write_NAND_FLASH(unsigned char Write_Data);
bool Wait_NAND_RADY(void);
void NAND_Finish(void);
void Init_TEST_DATA_BUFFER(void);

void Set_CE(bool state);
void Set_CLE(bool state);
void Set_ALE(bool state);

extern unsigned char Test_Data_Table[500];