rtc_sync.c File Reference

Synchronization of the RTC peripheral with the GPS UTC time. More...

#include "rtc_sync.h"
#include "common/phal_F4/rtc/rtc.h"
#include "main.h"
#include "can_library/generated/VCAN.h"

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Macros
#define	PAYLOAD_OFFSET   (sizeof(uint32_t) + sizeof(bool (*)(void)))

Functions
	RTOS_DEFINE_QUEUE (gps_time_queue, timestamped_frame_t, 1)
static RTC_timestamp_t	RTC_from_gps (timestamped_frame_t gps_time)
void	RTC_sync_init (void)
void	RTC_sync (void)

Variables
RTC_timestamp_t	fallback_timestamp
volatile uint32_t	last_RTC_sync_time = 0
volatile bool	is_RTC_sync_complete = false

Detailed Description

Synchronization of the RTC peripheral with the GPS UTC time.

Author

Irving Wang (irvin.nosp@m.gw@p.nosp@m.urdue.nosp@m..edu)

Shriya Balu (balu@.nosp@m.purd.nosp@m.ue.ed.nosp@m.u)

Macro Definition Documentation

PAYLOAD_OFFSET

#define PAYLOAD_OFFSET   (sizeof(uint32_t) + sizeof(bool (*)(void)))

Function Documentation

RTC_from_gps()

static RTC_timestamp_t RTC_from_gps ( timestamped_frame_t gps_time )

static

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RTC_sync()

void RTC_sync

(

void

)

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RTC_sync_init()

void RTC_sync_init

(

void

)

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RTOS_DEFINE_QUEUE()

RTOS_DEFINE_QUEUE	(	gps_time_queue	,
		timestamped_frame_t	,
		1	)

Variable Documentation

fallback_timestamp

RTC_timestamp_t fallback_timestamp

Initial value:

={
    .date = {
        .month_bcd = RTC_MONTH_UNKNOWN,
        .weekday   = RTC_WEEKDAY_UNKNOWN,
        .day_bcd   = 0x00,
        .year_bcd  = 0x00
    },
    .time = {
        .hours_bcd   = 0x00,
        .minutes_bcd = 0x00,
        .seconds_bcd = 0x00,
        .time_format = RTC_FORMAT_24_HOUR
    },
}

is_RTC_sync_complete

volatile bool is_RTC_sync_complete = false

last_RTC_sync_time

volatile uint32_t last_RTC_sync_time = 0