ziyan_time_sync.h
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/**
********************************************************************
* @file ziyan_time_sync.h
* @brief This is the header file for "ziyan_time_sync.c", defining the structure and
* (exported) function prototypes.
*
* @copyright (c) 2021 ZIYAN. All rights reserved.
*
* All information contained herein is, and remains, the property of ZIYAN.
* The intellectual and technical concepts contained herein are proprietary
* to ZIYAN and may be covered by U.S. and foreign patents, patents in process,
* and protected by trade secret or copyright law. Dissemination of this
* information, including but not limited to data and other proprietary
* material(s) incorporated within the information, in any form, is strictly
* prohibited without the express written consent of ZIYAN.
*
* If you receive this source code without ZIYAN’s authorization, you may not
* further disseminate the information, and you must immediately remove the
* source code and notify ZIYAN of its removal. ZIYAN reserves the right to pursue
* legal actions against you for any loss(es) or damage(s) caused by your
* failure to do so.
*
*********************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef ZIYAN_TIME_SYNC_H
#define ZIYAN_TIME_SYNC_H
/* Includes ------------------------------------------------------------------*/
#include "ziyan_typedef.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Exported constants --------------------------------------------------------*/
/* Exported types ------------------------------------------------------------*/
/**
* @brief Prototype of callback function used to get the newest PPS triggered timestamp.
* @warning User can not execute blocking style operations or functions in callback function, because that will block ZIYAN
* root thread, causing problems such as slow system response, payload disconnection or infinite loop.
* @param localTimeUs: pointer to memory space used to store PPS triggered timestamp.
* @return Execution result.
*/
typedef T_ZiyanReturnCode (*ZiyanGetNewestPpsTriggerLocalTimeUsCallback)(uint64_t *localTimeUs);
/**
* @brief Data structure of time in aircraft time system.
*/
typedef struct {
uint16_t year; /*!< Specifies year. */
uint8_t month; /*!< Specifies month, range from 1 to 12. */
uint8_t day; /*!< Specifies day, range from 1 to 31. */
uint8_t hour; /*!< Specifies hour, range from 0 to 23. */
uint8_t minute; /*!< Specifies minute, range from 0 to 59. */
uint8_t second; /*!< Specifies second, range from 0 to 59. */
uint32_t microsecond; /*!< Specifies microsecond, range from 0 to 999999. */
} T_ZiyanTimeSyncAircraftTime;
/* Exported functions --------------------------------------------------------*/
/**
* @brief Initialise time synchronization module in blocking mode. User should call this function before all other time
* synchronization operations, just like transferring time.
* @note Max execution time of this function is slightly larger than 2000ms.
* @note This function have to be called in user task, rather than main() function, and after scheduler being started.
* @return Execution result.
*/
T_ZiyanReturnCode ZiyanTimeSync_Init(void);
/**
* @brief Register callback function used to get the newest timestamp in local time system when PPS rising edge signal
* is detected.
* @details ZIYAN uses the timestamp information to synchronise time of local time system and RTK navigation and
* positioning system.
* @param callback: pointer to the callback function.
* @return Execution result.
*/
T_ZiyanReturnCode ZiyanTimeSync_RegGetNewestPpsTriggerTimeCallback(ZiyanGetNewestPpsTriggerLocalTimeUsCallback callback);
/**
* @brief Transfer local time to time in aircraft time system.
* @note Before calling the interface, users must call ZiyanTimeSync_RegGetNewestPpsTriggerTimeCallback() to register
* callback function used to report the latest triggered time of PPS signal.
* @param localTimeUs: local time, unit: microsecond.
* @param aircraftTime: pointer to memory space used to store time in aircraft time system.
* @return Execution result.
*/
T_ZiyanReturnCode ZiyanTimeSync_TransferToAircraftTime(uint64_t localTimeUs, T_ZiyanTimeSyncAircraftTime *aircraftTime);
#ifdef __cplusplus
}
#endif
#endif //ZIYAN_TIME_SYNC_H
/************************ (C) COPYRIGHT ZIYAN Innovations *******END OF FILE******/