/* * Copyright (c) 2019 - 2025, Nordic Semiconductor ASA * All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause * * 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 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 the copyright holder nor the names of its * contributors may be used to endorse or promote products derived from this * software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER 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_TEMP_H__ #define NRFX_TEMP_H__ #include #include #ifdef __cplusplus extern "C" { #endif /** * @defgroup nrfx_temp TEMP driver * @{ * @ingroup nrf_temp * @brief Temperature sensor (TEMP) driver. */ /** @brief Structure for TEMP configuration. */ typedef struct { uint8_t interrupt_priority; /**< Interrupt priority. */ } nrfx_temp_config_t; /** @brief TEMP default configuration. */ #define NRFX_TEMP_DEFAULT_CONFIG \ { \ .interrupt_priority = NRFX_TEMP_DEFAULT_CONFIG_IRQ_PRIORITY, \ } /** * @brief TEMP driver data ready handler type. * * @param temperature Raw temperature in a 2's complement signed value * representation. This value can be converted to Celsius * scale using the @ref nrfx_temp_calculate() function. */ typedef void (* nrfx_temp_data_handler_t)(int32_t temperature); /** * @brief Function for initializing the TEMP driver. * * @param[in] p_config Pointer to the structure with initial configuration. * @param[in] handler Data handler provided by the user. If not provided, * the driver is initialized in blocking mode. * * @retval NRFX_SUCCESS Driver was successfully initialized. * @retval NRFX_ERROR_ALREADY Driver was already initialized. */ nrfx_err_t nrfx_temp_init(nrfx_temp_config_t const * p_config, nrfx_temp_data_handler_t handler); /** @brief Function for uninitializing the TEMP driver. */ void nrfx_temp_uninit(void); /** * @brief Function for checking if the TEMP driver is initialized. * * @retval true Driver is already initialized. * @retval false Driver is not initialized. */ bool nrfx_temp_init_check(void); /** * @brief Function for getting the temperature measurement in a 2's complement * signed value representation. * * This function returns the last value prepared by the TEMP peripheral. * In blocking mode, it should be used after calling the @ref nrfx_temp_measure() * function. In non-blocking mode, it is called internally by the driver, * and the value it returns is passed to the data handler. * * @return Temperature measurement result in a 2's complement signed value * representation. */ NRFX_STATIC_INLINE int32_t nrfx_temp_result_get(void); /** * @brief Function for calculating the temperature value in Celsius scale from raw data. * * The returned temperature value is in Celsius scale, multiplied by 100 * For example, the actual temperature of 25.75[C] will be returned as a 2575 signed integer. * Measurement accuracy is 0.25[C]. * * @param[in] raw_measurement Temperature value in a 2's complement signed * value representation. * * @return Temperature measurement result. */ int32_t nrfx_temp_calculate(int32_t raw_measurement); /** * @brief Function for starting the temperature measurement. * * Non-blocking mode: * This function returns immediately. After a measurement, the handler specified * during initialization is called, with measurement result as the parameter. * * Blocking mode: * This function waits until the measurement is finished. The value should be read * using the @ref nrfx_temp_result_get() function. * * @retval NRFX_SUCCESS In non-blocking mode: Measurement was started. * An interrupt will be generated soon.
* In blocking mode: * Measurement was started and finished. Data can * be read using the @ref nrfx_temp_result_get() function. * @retval NRFX_ERROR_INTERNAL In non-blocking mode: * Not applicable.
* In blocking mode: * Measurement data ready event did not occur. */ nrfx_err_t nrfx_temp_measure(void); #ifndef NRFX_DECLARE_ONLY NRFX_STATIC_INLINE int32_t nrfx_temp_result_get(void) { return nrfy_temp_result_get(NRF_TEMP); } #endif // NRFX_DECLARE_ONLY /** @} */ void nrfx_temp_irq_handler(void); #ifdef __cplusplus } #endif #endif // NRFX_TEMP_H__