1

#include <util/delay.h>

     2

     3

#define false       0

     4

#define true        1

     5

     6

typedef volatile uint8_t ioport_t;

     7

     8

static inline ioport_t tbi(ioport_t *port, int bit)

     9

{

    10

    return *port & (1 << bit);

    11

}

    12

    13

static inline void sbi(ioport_t *port, int bit)

    14

{

    15

    *port |= (1 << bit);

    16

}

    17

    18

static inline void cbi(ioport_t *port, int bit)

    19

{

    20

    *port &= ~(1 << bit);

    21

}

    22

    23

static inline void xbi(ioport_t *port, int bit)

    24

{

    25

    *port ^= (1 << bit);

    26

}

    27

    28

void delay_1s ()

    29

{

    30

    // busyloop

    31

    _delay_ms(1000);

    32

}