ESP32-PaxCounter/include/timesync.h
2020-03-08 16:15:46 +01:00

29 lines
852 B
C

#ifndef _TIMESYNC_H
#define _TIMESYNC_H
#include "globals.h"
#include "irqhandler.h"
#include "timekeeper.h"
#define TIME_SYNC_FRAME_LENGTH 6 // timeserver answer frame length [bytes]
#define TIME_SYNC_FIXUP 16 // compensation for processing time [milliseconds]
#define TIME_SYNC_MAX_SEQNO 0xfe // threshold for wrap around time_sync_seqNo
#define TIME_SYNC_END_FLAG (TIME_SYNC_MAX_SEQNO + 1) // end of handshake marker
#define GPS_UTC_DIFF 315964800 // seconds diff between gps and utc epoch
enum timesync_t {
timesync_tx,
timesync_rx,
gwtime_sec,
gwtime_msec,
no_of_timestamps
};
void timesync_init(void);
void timesync_sendReq(void);
void timesync_storeReq(uint32_t timestamp, timesync_t timestamp_type);
void IRAM_ATTR timesync_processReq(void *taskparameter);
void IRAM_ATTR timesync_serverAnswer(void *pUserData, int flag);
#endif