From 3061ecca3d0fdfb87dabbf5f63c9e06c2a30f53a Mon Sep 17 00:00:00 2001 From: Trygve Laugstøl Date: Thu, 23 Aug 2018 17:08:59 +0200 Subject: o Initial import. --- .../modules/nrfx/drivers/include/nrfx_systick.h | 135 +++++++++++++++++++++ 1 file changed, 135 insertions(+) create mode 100644 thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/include/nrfx_systick.h (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/include/nrfx_systick.h') diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/include/nrfx_systick.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/include/nrfx_systick.h new file mode 100644 index 0000000..1629074 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/modules/nrfx/drivers/include/nrfx_systick.h @@ -0,0 +1,135 @@ +/** + * Copyright (c) 2016 - 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 NRFX_SYSTICK_H__ +#define NRFX_SYSTICK_H__ + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/** + * @defgroup nrfx_systick ARM(R) SysTick driver + * @{ + * @ingroup nrf_systick + * + * @brief ARM(R) SysTick driver. + * + * This driver configures ARM(R) SysTick as a free-running timer. + * This timer is used to generate delays and pool for timeouts. + * Only relatively short timeouts are supported. + * The SysTick works on 64MHz and is 24-bits wide. + * It means that it overflows around 4 times per second and around 250 ms + * would be the highest supported time in the library. + * But it would be really hard to detect if overflow was generated without + * using interrupts. For safety we would limit the maximum delay range by half. + */ + +/** + * @brief The value type that holds the SysTick state + * + * This variable is used to count the requested timeout. + * @sa nrfx_systick_get + */ +typedef struct { + uint32_t time; //!< Registered time value +} nrfx_systick_state_t; + +/** + * @brief Configure and start the timer + * + * Function configures SysTick as a free-running timer without interrupt. + */ +void nrfx_systick_init(void); + +/** + * @brief Get current SysTick state + * + * Function gets current state of the SysTick timer. + * It can be used to check time-out by @ref nrfx_systick_test. + * + * @param[out] p_state The pointer to the state variable to be filled + */ +void nrfx_systick_get(nrfx_systick_state_t * p_state); + +/** + * @brief Test if specified time is up in relation to remembered state + * + * @param[in] p_state Remembered state set by @ref nrfx_systick_get + * @param[in] us Required time-out. + * + * @retval true If current time is higher than specified state plus given time-out. + * @retval false If current time is lower than specified state plus given time-out + */ +bool nrfx_systick_test(nrfx_systick_state_t const * p_state, uint32_t us); + +/** + * @brief Blocking delay in CPU ticks + * + * @param[in] ticks Number of CPU ticks to delay. + */ +void nrfx_systick_delay_ticks(uint32_t ticks); + +/** + * @brief Blocking delay in us + * + * @param[in] us Number of microseconds to delay. + */ +void nrfx_systick_delay_us(uint32_t us); + +/** + * @brief Blocking delay in ms + * + * This delay function removes the limits of the highest possible delay value. + * + * @param[in] ms Number of milliseconds to delay. + */ +void nrfx_systick_delay_ms(uint32_t ms); + +/** @} */ + +#ifdef __cplusplus +} +#endif + +#endif /* NRFX_SYSTICK_H__ */ -- cgit v1.2.3