用ASF跑SAMD21程序(27)RTC (CAL) - Basic

/**

 * \file

 *

 * \brief Empty user application template

 *

 */



/**

 * \mainpage User Application template doxygen documentation

 *

 * \par Empty user application template

 *

 * This is a bare minimum user application template.

 *

 * For documentation of the board, go \ref group_common_boards "here" for a link

 * to the board-specific documentation.

 *

 * \par Content

 *

 * -# Include the ASF header files (through asf.h)

 * -# Minimal main function that starts with a call to system_init()

 * -# Basic usage of on-board LED and button

 * -# "Insert application code here" comment

 *

 */



/*

 * Include header files for all drivers that have been imported from

 * Atmel Software Framework (ASF).

 */

void configure_rtc_calendar(void);

#include <asf.h>

struct rtc_module rtc_instance;



void configure_rtc_calendar(void)

{

        /* Initialize RTC in calendar mode. */

        struct rtc_calendar_config config_rtc_calendar;

        rtc_calendar_get_config_defaults(&config_rtc_calendar);

        struct rtc_calendar_time alarm;

        rtc_calendar_get_time_defaults(&alarm);

        alarm.year   = 2013;

        alarm.month  = 1;

        alarm.day    = 1;

        alarm.hour   = 0;

        alarm.minute = 0;

        alarm.second = 4;

        config_rtc_calendar.clock_24h     = true;

        config_rtc_calendar.alarm[0].time = alarm;

        config_rtc_calendar.alarm[0].mask = RTC_CALENDAR_ALARM_MASK_YEAR;

        rtc_calendar_init(&rtc_instance, RTC, &config_rtc_calendar);

        rtc_calendar_enable(&rtc_instance);

}





int main (void)

{

        system_init();

        

        struct rtc_calendar_time time;

        time.year   = 2012;

        time.month  = 12;

        time.day    = 31;

        time.hour   = 23;

        time.minute = 59;

        time.second = 59;

        configure_rtc_calendar();

        /* Set current time. */

        rtc_calendar_set_time(&rtc_instance, &time);

        rtc_calendar_swap_time_mode(&rtc_instance);



         while (true) {

                 if (rtc_calendar_is_alarm_match(&rtc_instance, RTC_CALENDAR_ALARM_0)) {

                         /* Do something on RTC alarm match here */

                         port_pin_toggle_output_level(LED_0_PIN);

                         rtc_calendar_clear_alarm_match(&rtc_instance, RTC_CALENDAR_ALARM_0);

                 }

         }

}