C语言位域操作方法

1、C 语言位域操作方法#include <avr/io.h>#ifndef _Use_AdvancedPortCommand# define _Use_AdvancedPortCommand# define PAInUse0xff# define PBInUse0xff# define PCInUse0xff# define PDInUse0xff# define PEInUse0x00# define PFInUse0x00# define PGInUse0x00# define PHInUse0x00# define PIInUse0x00# define PJInUse0x00

2、# define PKInUse0x00# define PLInUse0x00# define PMInUse0x00# define PNInUse0x00# define POInUse0x00# define PPInUse0x00# define PQInUse0x00# define PRInUse0x00# define PSInUse0x00# define PTInUse0x00# define PUInUse0x00# define PVInUse0x00# define PWInUse# define PXInUse# define PYInUse# define PZI

3、nUse# define Read_PA0# define Read_PA1# define Read_PA2# define Read_PA3# define Read_PA4# define Read_PA5# define Read_PA6# define Read_PA7# define Read_PB0# define Read_PB1# define Read_PB2# define Read_PB3# define Read_PB4# define Read_PB5# define Read_PB6# define Read_PB7# define Read_PC0# defin

4、e Read_PC1# define Read_PC2# define Read_PC3# define Read_PC40x000x000x000x00(PINA<<7)>>7)(PINA<<6)>>7)(PINA<<5)>>7)(PINA<<4)>>7)(PINA<<3)>>7)(PINA<<2)>>7)(PINA<<1)>>7)(PINA>>7)(PINB<<7)>>7)(PINB<

5、;<6)>>7)(PINB<<5)>>7)(PINB<<4)>>7)(PINB<<3)>>7)(PINB<<2)>>7)(PINB<<1)>>7)(PINB>>7)(PINC<<7)>>7)(PINC<<6)>>7)(PINC<<5)>>7)(PINC<<4)>>7)(PINC<<3)>>7)# define Read_PC5(

6、PINC<<2)>>7)(PINC<<1)>>7)(PINC>>7)(PIND<<7)>>7)(PIND<<6)>>7)(PIND<<5)>>7)(PIND<<4)>>7)(PIND<<3)>>7)(PIND<<2)>>7)(PIND<<1)>>7)(PIND>>7)# define Read_PC6# define Read_PC7# define Rea

7、d_PD0# define Read_PD1# define Read_PD2# define Read_PD3# define Read_PD4# define Read_PD5# define Read_PD6# define Read_PD7 typedef struct BYTE_BITunsigned Bit0:1;unsigned Bit1:1;unsigned Bit2:1;unsigned Bit3:1;unsigned Bit4:1;unsigned Bit5:1;unsigned Bit6:1;unsigned Bit7:1;PORTBIT;# define PORTA_B

8、IT (*(volatile PORTBIT *)PORTA)# define PORTB_BIT (*(volatile PORTBIT *)PORTB)# define PORTC_BIT (*(volatile PORTBIT *)PORTC)# define PORTD_BIT (*(volatile PORTBIT *)PORTD)# define DDRA_BIT (*(volatile PORTBIT *)DDRA)# define DDR_PC7DDRC_BIT.Bit7# define DDRB_BIT(*(volatile PORTBIT *)DDRB)# define D

9、DRC_BIT(*(volatile PORTBIT *)DDRC)# define DDRD_BIT(*(volatile PORTBIT *)DDRD)DDRA_BIT.Bit0DDRA_BIT.Bit1DDRA_BIT.Bit2DDRA_BIT.Bit3DDRA_BIT.Bit4DDRA_BIT.Bit5DDRA_BIT.Bit6DDRA_BIT.Bit7DDRB_BIT.Bit0DDRB_BIT.Bit1DDRB_BIT.Bit2DDRB_BIT.Bit3DDRB_BIT.Bit4DDRB_BIT.Bit5DDRB_BIT.Bit6DDRB_BIT.Bit7DDRC_BIT.Bit0D

10、DRC_BIT.Bit1DDRC_BIT.Bit2DDRC_BIT.Bit3DDRC_BIT.Bit4DDRC_BIT.Bit5DDRC_BIT.Bit6# define DDR_PA0# define DDR_PA1# define DDR_PA2# define DDR_PA3# define DDR_PA4# define DDR_PA5# define DDR_PA6# define DDR_PA7# define DDR_PB0# define DDR_PB1# define DDR_PB2# define DDR_PB3# define DDR_PB4# define DDR_PB

11、5# define DDR_PB6# define DDR_PB7# define DDR_PC0# define DDR_PC1# define DDR_PC2# define DDR_PC3# define DDR_PC4# define DDR_PC5# define DDR_PC6# define DDR_PD0DDRD_BIT.Bit0DDRD_BIT.Bit1DDRD_BIT.Bit2DDRD_BIT.Bit3DDRD_BIT.Bit4DDRD_BIT.Bit5DDRD_BIT.Bit6DDRD_BIT.Bit7# define DDR_PD1# define DDR_PD2# d

12、efine DDR_PD3# define DDR_PD4# define DDR_PD5# define DDR_PD6# define DDR_PD7# define _PC2PORTC_BIT.Bit2# define _PA0# define _PA1# define _PA2# define _PA3# define _PA4# define _PA5# define _PA6# define _PA7# define _PB0# define _PB1# define _PB2# define _PB3# define _PB4# define _PB5# define _PB6#

13、 define _PB7# define _PC0# define _PC1PORTA_BIT.Bit0PORTA_BIT.Bit1PORTA_BIT.Bit2PORTA_BIT.Bit3PORTA_BIT.Bit4PORTA_BIT.Bit5PORTA_BIT.Bit6PORTA_BIT.Bit7PORTB_BIT.Bit0PORTB_BIT.Bit1PORTB_BIT.Bit2PORTB_BIT.Bit3PORTB_BIT.Bit4PORTB_BIT.Bit5PORTB_BIT.Bit6PORTB_BIT.Bit7PORTC_BIT.Bit0PORTC_BIT.Bit1# define_P

14、C3PORTC_BIT.Bit3# define_PC4PORTC_BIT.Bit4# define_PC5PORTC_BIT.Bit5# define_PC6PORTC_BIT.Bit6# define_PC7PORTC_BIT.Bit7# define_PD0PORTD_BIT.Bit0# define_PD1PORTD_BIT.Bit1# define_PD2PORTD_BIT.Bit2# define_PD3PORTD_BIT.Bit3# define_PD4PORTD_BIT.Bit4# define_PD5PORTD_BIT.Bit5# define_PD6PORTD_BIT.Bi

15、t6# define_PD7PORTD_BIT.Bit7# define PORTDefine();#endif2 第二种位操作方法typedef unionunsigned char value;structunsigned int bit0:1;unsigned int bit1:1;unsigned int bit2:1;unsigned int bit3:1;unsigned int bit4:1;unsigned int bit5:1;unsigned int bit6:1;unsigned int bit7:1; bit_field; PORT;用法：声明： PORT pa;位操作： pa.bit_field.bit0=p