owner-nrf52sdk/nRF5_SDK_15.2.0/components/libraries/delay/nrf_delay.h

/**
 * Copyright (c) 2011 - 2018, Nordic Semiconductor ASA
 *
 * All rights reserved.
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 * are permitted provided that the following conditions are met:
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 *    list of conditions and the following disclaimer.
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 * 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
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 *    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.
 *
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#ifndef _NRF_DELAY_H
#define _NRF_DELAY_H

#include <nrfx.h>

#ifdef __cplusplus
extern "C" {
#endif

/**
 * @brief Function for delaying execution for a number of microseconds.
 *
 * @param us_time Number of microseconds to wait.
 */
#define nrf_delay_us(us_time) NRFX_DELAY_US(us_time)


/**
 * @brief Function for delaying execution for a number of milliseconds.
 *
 * @param ms_time Number of milliseconds to wait.
 */

__STATIC_INLINE void nrf_delay_ms(uint32_t ms_time)
{
    if (ms_time == 0)
    {
        return;
    }

    do {
        nrf_delay_us(1000);
    } while (--ms_time);
}

#ifdef __cplusplus
}
#endif

#endif