macros.h

AVR系列被广泛应用的单片机MEGA8开发(原理图)及例程

nsigned char *)0x70) /* m/m */
#define TWSR	(*(volatile unsigned char *)0x71) /* m/m */
#define  TWPS1    1
#define  TWPS0    0
#define TWAR	(*(volatile unsigned char *)0x72) /* m/m */
#define  TWGCE    0
#define TWDR	(*(volatile unsigned char *)0x73) /* m/m */
#define TWCR	(*(volatile unsigned char *)0x74) /* m/m */
#define  TWINT    7
#define  TWEA     6
#define  TWSTA    5
#define  TWSTO    4
#define  TWWC     3
#define  TWEN     2
#define  TWIE     0

/* SPI */
#define SPCR	(*(volatile unsigned char *)0x2D)
#define  SPIE     7
#define  SPE      6
#define  DORD     5
#define  MSTR     4
#define  CPOL     3
#define  CPHA     2
#define  SPR1     1
#define  SPR0     0
#define SPSR	(*(volatile unsigned char *)0x2E)
#define  SPIF     7
#define  WCOL     6
#define  SPI2X    0
#define SPDR	(*(volatile unsigned char *)0x2F)

/* EEPROM */
#define EECR	(*(volatile unsigned char *)0x3C)
#define  EERIE    3
#define  EE