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+/**
+ * Copyright (c) 2015 - 2018, Nordic Semiconductor ASA
+ * 
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 
+ * 2. Redistributions in binary form, except as embedded into a Nordic
+ *    Semiconductor ASA integrated circuit in a product or a software update for
+ *    such product, must reproduce the above copyright notice, this list of
+ *    conditions and the following disclaimer in the documentation and/or other
+ *    materials provided with the distribution.
+ * 
+ * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
+ *    contributors may be used to endorse or promote products derived from this
+ *    software without specific prior written permission.
+ * 
+ * 4. This software, with or without modification, must only be used with a
+ *    Nordic Semiconductor ASA integrated circuit.
+ * 
+ * 5. Any software provided in binary form under this license must not be reverse
+ *    engineered, decompiled, modified and/or disassembled.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
+ * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
+ * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * 
+ */
+#ifndef ANT_HRM_UTILS_H__
+#define ANT_HRM_UTILS_H__
+
+#include "app_util.h"
+#include "nrf_assert.h"
+#include "nrf.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/** @file
+ *
+ * @defgroup ant_sdk_profiles_hrm_utils Heart Rate Monitor profile utilities
+ * @{
+ * @ingroup ant_hrm
+ * @brief This module implements utilities for the Heart Rate Monitor profile.
+ *
+ */
+
+/**@brief Unit for HRM operating time.
+ *
+ * @details According to the ANT HRM specification, the operating time unit is 2 seconds.
+ */
+#define ANT_HRM_OPERATING_TIME_UNIT                 2u
+
+/**@brief This macro should be used to get the seconds part of the operating time.
+ */
+#define ANT_HRM_OPERATING_SECONDS(OPERATING_TIME)   (((OPERATING_TIME) * ANT_HRM_OPERATING_TIME_UNIT) % 60)
+
+/**@brief This macro should be used to get the minutes part of the operating time.
+ */
+#define ANT_HRM_OPERATING_MINUTES(OPERATING_TIME)   ((((OPERATING_TIME) * ANT_HRM_OPERATING_TIME_UNIT) / 60) % 60)
+
+/**@brief This macro should be used to get the hours part of the operating time.
+ */
+#define ANT_HRM_OPERATING_HOURS(OPERATING_TIME)     ((((OPERATING_TIME) * ANT_HRM_OPERATING_TIME_UNIT) / (60 * 60)) % 24)
+
+/**@brief This macro should be used to get the days part of the operating time.
+ */
+#define ANT_HRM_OPERATING_DAYS(OPERATING_TIME)      ((((OPERATING_TIME) * ANT_HRM_OPERATING_TIME_UNIT) / (60 * 60)) / 24)
+
+/**@brief Number of HRM beat time counts per second.
+ *
+ * @details According to the ANT HRM specification, the beat time unit is 1/1024 of a second.
+ */
+#define ANT_HRM_BEAT_TIME_COUNTS_PER_SEC            1024u
+
+/**@brief Beat time display required precision.
+ *
+ * @details This value is used to decode the number of milliseconds.
+ */
+#define ANT_HRM_BEAT_TIME_PRECISION                 1000u
+
+/**@brief This macro should be used to get the seconds part of the HRM beat time.
+ */
+#define ANT_HRM_BEAT_TIME_SEC(BEAT_TIME)            ((BEAT_TIME) / ANT_HRM_BEAT_TIME_COUNTS_PER_SEC)
+
+/**@brief This macro should be used to get the milliseconds part of the HRM beat time.
+ */
+#define ANT_HRM_BEAT_TIME_MSEC(BEAT_TIME)           (((((BEAT_TIME) % ANT_HRM_BEAT_TIME_COUNTS_PER_SEC) * ANT_HRM_BEAT_TIME_PRECISION)   \
+                                                    + (ANT_HRM_BEAT_TIME_COUNTS_PER_SEC / 2))                                          \
+                                                    / ANT_HRM_BEAT_TIME_COUNTS_PER_SEC)
+/** @} */
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // ANT_HRM_UTILS_H__
+