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#include <inttypes.h>

#include <avr/interrupt.h>

#include <bios.h>

static int app_putchar(char c, FILE *stream);

static int app_getchar(FILE *stream);

static FILE mystdio = FDEV_SETUP_STREAM(app_putchar, app_getchar,

                                         _FDEV_SETUP_RW);

static int app_putchar(char c, FILE *stream) {

    bios->can_send(c);

    return 0;

}

static int app_getchar(FILE *stream) {

    return bios->can_receive();

}

int main(void)

{

    long time;

    long time1 = 0;

    long time2 = 0;

    sei();

    stdout = &mystdio;

    stdin = &mystdio;

    printf("AVR Test Application\n");

    printf("Using AVR BIOS version %x\n", bios->version);

    while (1) {

        time = bios->timebase_get();

        if ((time - time1) >= 2000) {

            time1 = time;

            printf("Two seconds passed, time is now %d.\n", (int)time);

        }

        if ((time - time2) >= 20000) {

            time2 = time;

            printf("Will now hang node.\n");

            cli();

        }

    }

    return 0;

}