at25010.h

ix2-lib-spi-1_2_0.zip源码

/*H***************************************************************************
* NAME: at25010.h           
*----------------------------------------------------------------------------
* REVISION       
*----------------------------------------------------------------------------
* PURPOSE: 
* Header file to use with                                               
*****************************************************************************/

#ifndef _AT25010_H_
#define _AT25010_H_


/*_____ M A C R O S ________________________________________________________*/



// Put here the standart IO port you want to use to select the CS line for your SPI EEPROM
#define AT25010_CS 				P1_4


#define	AT25010_SET_CS			{ AT25010_CS = 0; }
#define	AT25010_CLEAR_CS		{ AT25010_CS = 1; }

#define AT25010_CMD_WREN		0x06
#define AT25010_CMD_WRDI		0x04
#define AT25010_CMD_RDSR		0x05		//Read status register
#define AT25010_CMD_WRSR		0x01		//Write Status register
#define AT25010_CMD_READ		0x03
#define AT25010_CMD_WRITE		0x02

#define AT25010_MSK_RDY			0x01
#define AT25010_MSK_WEN			0x02
#define AT25010_MSK_BP0			0x04
#define AT25010_MSK_BP1			0x08

#define AT25010_MAX_PAGE_SIZE	0x08

/*_____D E C L A R A T I O N S  ____________________________________________*/


/*_____P R O T O T Y P E S _________________________________________________*/

unsigned char at25010_read_status(void );
void at25010_set_write_enable_latch(void );
void at25010_clear_write_enable_latch(void );
void at25010_write_byte(unsigned char adr, unsigned char to_write );
unsigned char at25010_read_byte(unsigned char adr);
bit at25010_ready(void);
void at25010_read_burst_polling( unsigned char adr, unsigned char  *ptr_buf, unsigned char nb_data);
void at25010_write_burst_polling( unsigned char adr, unsigned char  *ptr_buf, unsigned char nb_data);
void at25010_read_burst_interrupt( unsigned char adr, unsigned char  *ptr_buf, unsigned char nb_data);
void at25010_write_burst_interrupt( unsigned char adr, unsigned char  *ptr_buf, unsigned char nb_data);
#endif /* _AT25010_H_ */