mydefine.h

atmelsam7s64twi完美底层驱动

#define byte unsigned char

#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long int


//#define  AT91C_TWI_CLOCK 4000
#define MCK 18432000
#define AT91C_EEPROM_I2C_ADDRESS    (0x50<<16) //EEPROM的地址为 0101 0000
// 全局变量定义
#define AT91C_TWI_CLOCK 	8000  //定义TWI始终
#define Twd_Twck                (AT91C_PA3_TWD|AT91C_PA4_TWCK)//TWI接口

#define AT91C_EEPROM_WRITE_OK 1
#define AT91C_EEPROM_READ_OK 1

//#define AT91C_EEPROM_I2C_ADDRESS	((unsigned int)0x50<<16)//1010,000---DADR
#define PCF8563_ADDRESS   ((unsigned int)0x51<<16)
#define TWI_1BYTE_SUBADDR  0
#define TWI_2BYTE_SUBADDR  1