rom_h.h

8051带32Mflash的源代码

#include <reg52.h>
sfr P4 = 0xe8;
sfr AUXR = 0X8E;

sbit P40=P4^0;
sbit P41=P4^1;
sbit P42=P4^2;

#define uint unsigned int
#define uchar unsigned char

#define ROM_RD_MODE1 0x00
#define ROM_RD_MODE2 0x01
#define ROM_RD_MODE3 0x50
#define ROM_WR_MODE 0x80

#define PAGE_MODE 512

#define ROM_DATAPORT P0


sbit	ROM_BUSY = P1^4;
sbit	ROM_RD = P1^0;
sbit	ROM_CLE = P1^1;
sbit	ROM_ALE = P1^2;
sbit	ROM_WR = P1^3;

/*----------------------------------------------------------------
		    ROM SUB PROGRAMS 	
-----------------------------------------------------------------*/
void rom_cs(bit flag);
void rom_init(void);

unsigned char rom_erase_block(unsigned int add);

void rom_write_addcol(unsigned char value);
void rom_write_addrow(unsigned int value);

void rom_write_com(unsigned char value);
void rom_write_add(unsigned char value);
void rom_write_data(unsigned char value);

void rom_rd_wr_data_start(uchar value,uchar addcol,uint addrow);
void rom_write_block_data(uchar value);
void rom_write_block_start(unsigned char addcol,unsigned int addrow);
unsigned char rom_write_block_end();
uchar rom_write_page(uint addcow,uchar xdata *p);

unsigned char rom_readID(); 
void rom_read_block_start(unsigned char addcol,unsigned int addrow);
uchar rom_read_block_byte(void);
uint rom_read_block_word(void);


/*----------------------------------------------------------------
	        	DELAY program 	
-----------------------------------------------------------------*/
extern void delay5us(uint utimes);    //5uS*utimes  IN 12MHZ
extern void delay10ms(uint mtimes); //10MS*mtimes  IN 12MHZ