df71d3444d
seperate files from latest SDK (currently 14.2.0) from good old non- secure bootloader sdk 11
528 lines
18 KiB
C
528 lines
18 KiB
C
/**
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* Copyright (c) 2015 - 2017, Nordic Semiconductor ASA
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form, except as embedded into a Nordic
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* Semiconductor ASA integrated circuit in a product or a software update for
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* such product, must reproduce the above copyright notice, this list of
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* conditions and the following disclaimer in the documentation and/or other
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* materials provided with the distribution.
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*
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* 3. Neither the name of Nordic Semiconductor ASA nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* 4. This software, with or without modification, must only be used with a
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* Nordic Semiconductor ASA integrated circuit.
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*
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* 5. Any software provided in binary form under this license must not be reverse
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* engineered, decompiled, modified and/or disassembled.
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*
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* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
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* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
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* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef NRF_TWIM_H__
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#define NRF_TWIM_H__
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/**
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* @defgroup nrf_twim_hal TWIM HAL
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* @{
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* @ingroup nrf_twi
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*
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* @brief Hardware access layer for managing the TWIM peripheral.
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*/
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#include <stdint.h>
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#include <stddef.h>
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#include <stdbool.h>
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#include "nrf.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief TWIM tasks.
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*/
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typedef enum
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{
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/*lint -save -e30*/
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NRF_TWIM_TASK_STARTRX = offsetof(NRF_TWIM_Type, TASKS_STARTRX), ///< Start TWI receive sequence.
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NRF_TWIM_TASK_STARTTX = offsetof(NRF_TWIM_Type, TASKS_STARTTX), ///< Start TWI transmit sequence.
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NRF_TWIM_TASK_STOP = offsetof(NRF_TWIM_Type, TASKS_STOP), ///< Stop TWI transaction.
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NRF_TWIM_TASK_SUSPEND = offsetof(NRF_TWIM_Type, TASKS_SUSPEND), ///< Suspend TWI transaction.
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NRF_TWIM_TASK_RESUME = offsetof(NRF_TWIM_Type, TASKS_RESUME) ///< Resume TWI transaction.
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/*lint -restore*/
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} nrf_twim_task_t;
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/**
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* @brief TWIM events.
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*/
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typedef enum
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{
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/*lint -save -e30*/
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NRF_TWIM_EVENT_STOPPED = offsetof(NRF_TWIM_Type, EVENTS_STOPPED), ///< TWI stopped.
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NRF_TWIM_EVENT_ERROR = offsetof(NRF_TWIM_Type, EVENTS_ERROR), ///< TWI error.
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NRF_TWIM_EVENT_SUSPENDED = 0x148, ///< TWI suspended.
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NRF_TWIM_EVENT_RXSTARTED = offsetof(NRF_TWIM_Type, EVENTS_RXSTARTED), ///< Receive sequence started.
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NRF_TWIM_EVENT_TXSTARTED = offsetof(NRF_TWIM_Type, EVENTS_TXSTARTED), ///< Transmit sequence started.
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NRF_TWIM_EVENT_LASTRX = offsetof(NRF_TWIM_Type, EVENTS_LASTRX), ///< Byte boundary, starting to receive the last byte.
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NRF_TWIM_EVENT_LASTTX = offsetof(NRF_TWIM_Type, EVENTS_LASTTX) ///< Byte boundary, starting to transmit the last byte.
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/*lint -restore*/
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} nrf_twim_event_t;
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/**
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* @brief TWIM shortcuts.
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*/
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typedef enum
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{
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NRF_TWIM_SHORT_LASTTX_STARTRX_MASK = TWIM_SHORTS_LASTTX_STARTRX_Msk, ///< Shortcut between LASTTX event and STARTRX task.
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NRF_TWIM_SHORT_LASTTX_SUSPEND_MASK = TWIM_SHORTS_LASTTX_SUSPEND_Msk, ///< Shortcut between LASTTX event and SUSPEND task.
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NRF_TWIM_SHORT_LASTTX_STOP_MASK = TWIM_SHORTS_LASTTX_STOP_Msk, ///< Shortcut between LASTTX event and STOP task.
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NRF_TWIM_SHORT_LASTRX_STARTTX_MASK = TWIM_SHORTS_LASTRX_STARTTX_Msk, ///< Shortcut between LASTRX event and STARTTX task.
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NRF_TWIM_SHORT_LASTRX_STOP_MASK = TWIM_SHORTS_LASTRX_STOP_Msk ///< Shortcut between LASTRX event and STOP task.
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} nrf_twim_short_mask_t;
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/**
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* @brief TWIM interrupts.
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*/
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typedef enum
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{
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NRF_TWIM_INT_STOPPED_MASK = TWIM_INTENSET_STOPPED_Msk, ///< Interrupt on STOPPED event.
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NRF_TWIM_INT_ERROR_MASK = TWIM_INTENSET_ERROR_Msk, ///< Interrupt on ERROR event.
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NRF_TWIM_INT_SUSPENDED_MASK = (1 << 18), ///< Interrupt on SUSPENDED event.
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NRF_TWIM_INT_RXSTARTED_MASK = TWIM_INTENSET_RXSTARTED_Msk, ///< Interrupt on RXSTARTED event.
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NRF_TWIM_INT_TXSTARTED_MASK = TWIM_INTENSET_TXSTARTED_Msk, ///< Interrupt on TXSTARTED event.
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NRF_TWIM_INT_LASTRX_MASK = TWIM_INTENSET_LASTRX_Msk, ///< Interrupt on LASTRX event.
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NRF_TWIM_INT_LASTTX_MASK = TWIM_INTENSET_LASTTX_Msk ///< Interrupt on LASTTX event.
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} nrf_twim_int_mask_t;
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/**
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* @brief TWIM master clock frequency.
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*/
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typedef enum
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{
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NRF_TWIM_FREQ_100K = TWIM_FREQUENCY_FREQUENCY_K100, ///< 100 kbps.
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NRF_TWIM_FREQ_250K = TWIM_FREQUENCY_FREQUENCY_K250, ///< 250 kbps.
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NRF_TWIM_FREQ_400K = TWIM_FREQUENCY_FREQUENCY_K400, ///< 400 kbps.
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#ifndef TWI_PRESENT
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NRF_TWI_FREQ_100K = NRF_TWIM_FREQ_100K,
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NRF_TWI_FREQ_250K = NRF_TWIM_FREQ_250K,
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NRF_TWI_FREQ_400K = NRF_TWIM_FREQ_400K,
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#endif
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} nrf_twim_frequency_t;
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/**
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* @brief TWIM error source.
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*/
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typedef enum
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{
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NRF_TWIM_ERROR_ADDRESS_NACK = TWIM_ERRORSRC_ANACK_Msk, ///< NACK received after sending the address.
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NRF_TWIM_ERROR_DATA_NACK = TWIM_ERRORSRC_DNACK_Msk, ///< NACK received after sending a data byte.
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#ifndef TWI_PRESENT
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NRF_TWI_ERROR_ADDRESS_NACK = NRF_TWIM_ERROR_ADDRESS_NACK,
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NRF_TWI_ERROR_DATA_NACK = NRF_TWIM_ERROR_DATA_NACK,
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#endif
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} nrf_twim_error_t;
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/**
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* @brief Function for activating a specific TWIM task.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] task Task to activate.
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*/
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__STATIC_INLINE void nrf_twim_task_trigger(NRF_TWIM_Type * p_reg,
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nrf_twim_task_t task);
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/**
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* @brief Function for getting the address of a specific TWIM task register.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] task Requested task.
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*
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* @return Address of the specified task register.
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*/
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__STATIC_INLINE uint32_t * nrf_twim_task_address_get(NRF_TWIM_Type * p_reg,
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nrf_twim_task_t task);
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/**
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* @brief Function for clearing a specific TWIM event.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] event Event to clear.
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*/
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__STATIC_INLINE void nrf_twim_event_clear(NRF_TWIM_Type * p_reg,
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nrf_twim_event_t event);
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/**
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* @brief Function for checking the state of a specific TWIM event.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] event Event to check.
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*
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* @retval true If the event is set.
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* @retval false If the event is not set.
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*/
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__STATIC_INLINE bool nrf_twim_event_check(NRF_TWIM_Type * p_reg,
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nrf_twim_event_t event);
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/**
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* @brief Function for getting the address of a specific TWIM event register.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] event Requested event.
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*
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* @return Address of the specified event register.
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*/
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__STATIC_INLINE uint32_t * nrf_twim_event_address_get(NRF_TWIM_Type * p_reg,
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nrf_twim_event_t event);
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/**
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* @brief Function for enabling specified shortcuts.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] shorts_mask Shortcuts to enable.
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*/
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__STATIC_INLINE void nrf_twim_shorts_enable(NRF_TWIM_Type * p_reg,
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uint32_t shorts_mask);
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/**
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* @brief Function for disabling specified shortcuts.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] shorts_mask Shortcuts to disable.
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*/
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__STATIC_INLINE void nrf_twim_shorts_disable(NRF_TWIM_Type * p_reg,
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uint32_t shorts_mask);
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/**
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* @brief Function for enabling specified interrupts.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] int_mask Interrupts to enable.
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*/
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__STATIC_INLINE void nrf_twim_int_enable(NRF_TWIM_Type * p_reg,
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uint32_t int_mask);
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/**
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* @brief Function for disabling specified interrupts.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] int_mask Interrupts to disable.
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*/
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__STATIC_INLINE void nrf_twim_int_disable(NRF_TWIM_Type * p_reg,
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uint32_t int_mask);
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/**
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* @brief Function for checking the state of a given interrupt.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] int_mask Interrupt to check.
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*
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* @retval true If the interrupt is enabled.
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* @retval false If the interrupt is not enabled.
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*/
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__STATIC_INLINE bool nrf_twim_int_enable_check(NRF_TWIM_Type * p_reg,
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nrf_twim_int_mask_t int_mask);
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/**
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* @brief Function for enabling the TWIM peripheral.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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*/
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__STATIC_INLINE void nrf_twim_enable(NRF_TWIM_Type * p_reg);
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/**
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* @brief Function for disabling the TWIM peripheral.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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*/
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__STATIC_INLINE void nrf_twim_disable(NRF_TWIM_Type * p_reg);
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/**
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* @brief Function for configuring TWI pins.
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*
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] scl_pin SCL pin number.
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* @param[in] sda_pin SDA pin number.
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*/
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__STATIC_INLINE void nrf_twim_pins_set(NRF_TWIM_Type * p_reg,
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uint32_t scl_pin,
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uint32_t sda_pin);
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/**
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* @brief Function for setting the TWI master clock frequency.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] frequency TWI frequency.
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*/
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__STATIC_INLINE void nrf_twim_frequency_set(NRF_TWIM_Type * p_reg,
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nrf_twim_frequency_t frequency);
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/**
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* @brief Function for checking the TWI error source.
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*
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* The error flags are cleared after reading.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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*
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* @return Mask with error source flags.
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*/
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__STATIC_INLINE uint32_t nrf_twim_errorsrc_get_and_clear(NRF_TWIM_Type * p_reg);
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/**
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* @brief Function for setting the address to be used in TWI transfers.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] address Address to be used in transfers.
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*/
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__STATIC_INLINE void nrf_twim_address_set(NRF_TWIM_Type * p_reg,
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uint8_t address);
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/**
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* @brief Function for setting the transmit buffer.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] p_buffer Pointer to the buffer with data to send.
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* @param[in] length Maximum number of data bytes to transmit.
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*/
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__STATIC_INLINE void nrf_twim_tx_buffer_set(NRF_TWIM_Type * p_reg,
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uint8_t const * p_buffer,
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uint8_t length);
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/**
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* @brief Function for setting the receive buffer.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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* @param[in] p_buffer Pointer to the buffer for received data.
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* @param[in] length Maximum number of data bytes to receive.
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*/
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__STATIC_INLINE void nrf_twim_rx_buffer_set(NRF_TWIM_Type * p_reg,
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uint8_t * p_buffer,
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uint8_t length);
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__STATIC_INLINE void nrf_twim_shorts_set(NRF_TWIM_Type * p_reg,
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uint32_t shorts_mask);
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__STATIC_INLINE uint32_t nrf_twim_txd_amount_get(NRF_TWIM_Type * p_reg);
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__STATIC_INLINE uint32_t nrf_twim_rxd_amount_get(NRF_TWIM_Type * p_reg);
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/**
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* @brief Function for enabling the TX list feature.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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*/
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__STATIC_INLINE void nrf_twim_tx_list_enable(NRF_TWIM_Type * p_reg);
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/**
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* @brief Function for disabling the TX list feature.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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*/
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__STATIC_INLINE void nrf_twim_tx_list_disable(NRF_TWIM_Type * p_reg);
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/**
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* @brief Function for enabling the RX list feature.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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*/
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__STATIC_INLINE void nrf_twim_rx_list_enable(NRF_TWIM_Type * p_reg);
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/**
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* @brief Function for disabling the RX list feature.
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*
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* @param[in] p_reg Pointer to the peripheral registers structure.
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*/
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__STATIC_INLINE void nrf_twim_rx_list_disable(NRF_TWIM_Type * p_reg);
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/**
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* @}
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*/
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#ifndef SUPPRESS_INLINE_IMPLEMENTATION
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__STATIC_INLINE void nrf_twim_task_trigger(NRF_TWIM_Type * p_reg,
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nrf_twim_task_t task)
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{
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*((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)task)) = 0x1UL;
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}
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__STATIC_INLINE uint32_t * nrf_twim_task_address_get(NRF_TWIM_Type * p_reg,
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nrf_twim_task_t task)
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{
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return (uint32_t *)((uint8_t *)p_reg + (uint32_t)task);
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}
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__STATIC_INLINE void nrf_twim_event_clear(NRF_TWIM_Type * p_reg,
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nrf_twim_event_t event)
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{
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*((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event)) = 0x0UL;
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#if __CORTEX_M == 0x04
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volatile uint32_t dummy = *((volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event));
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(void)dummy;
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#endif
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}
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__STATIC_INLINE bool nrf_twim_event_check(NRF_TWIM_Type * p_reg,
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nrf_twim_event_t event)
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{
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return (bool)*(volatile uint32_t *)((uint8_t *)p_reg + (uint32_t)event);
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}
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__STATIC_INLINE uint32_t * nrf_twim_event_address_get(NRF_TWIM_Type * p_reg,
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nrf_twim_event_t event)
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{
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return (uint32_t *)((uint8_t *)p_reg + (uint32_t)event);
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}
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__STATIC_INLINE void nrf_twim_shorts_enable(NRF_TWIM_Type * p_reg,
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uint32_t shorts_mask)
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{
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p_reg->SHORTS |= shorts_mask;
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}
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__STATIC_INLINE void nrf_twim_shorts_disable(NRF_TWIM_Type * p_reg,
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uint32_t shorts_mask)
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{
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p_reg->SHORTS &= ~(shorts_mask);
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}
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__STATIC_INLINE void nrf_twim_int_enable(NRF_TWIM_Type * p_reg,
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uint32_t int_mask)
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{
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p_reg->INTENSET = int_mask;
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}
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__STATIC_INLINE void nrf_twim_int_disable(NRF_TWIM_Type * p_reg,
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uint32_t int_mask)
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{
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p_reg->INTENCLR = int_mask;
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}
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__STATIC_INLINE bool nrf_twim_int_enable_check(NRF_TWIM_Type * p_reg,
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nrf_twim_int_mask_t int_mask)
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{
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return (bool)(p_reg->INTENSET & int_mask);
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}
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__STATIC_INLINE void nrf_twim_enable(NRF_TWIM_Type * p_reg)
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{
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p_reg->ENABLE = (TWIM_ENABLE_ENABLE_Enabled << TWIM_ENABLE_ENABLE_Pos);
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}
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__STATIC_INLINE void nrf_twim_disable(NRF_TWIM_Type * p_reg)
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{
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p_reg->ENABLE = (TWIM_ENABLE_ENABLE_Disabled << TWIM_ENABLE_ENABLE_Pos);
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}
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__STATIC_INLINE void nrf_twim_pins_set(NRF_TWIM_Type * p_reg,
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uint32_t scl_pin,
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uint32_t sda_pin)
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{
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p_reg->PSEL.SCL = scl_pin;
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p_reg->PSEL.SDA = sda_pin;
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|
}
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|
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__STATIC_INLINE void nrf_twim_frequency_set(NRF_TWIM_Type * p_reg,
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|
nrf_twim_frequency_t frequency)
|
|
{
|
|
p_reg->FREQUENCY = frequency;
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|
}
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|
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|
__STATIC_INLINE uint32_t nrf_twim_errorsrc_get_and_clear(NRF_TWIM_Type * p_reg)
|
|
{
|
|
uint32_t error_source = p_reg->ERRORSRC;
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|
|
|
// [error flags are cleared by writing '1' on their position]
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|
p_reg->ERRORSRC = error_source;
|
|
|
|
return error_source;
|
|
}
|
|
|
|
__STATIC_INLINE void nrf_twim_address_set(NRF_TWIM_Type * p_reg,
|
|
uint8_t address)
|
|
{
|
|
p_reg->ADDRESS = address;
|
|
}
|
|
|
|
__STATIC_INLINE void nrf_twim_tx_buffer_set(NRF_TWIM_Type * p_reg,
|
|
uint8_t const * p_buffer,
|
|
uint8_t length)
|
|
{
|
|
p_reg->TXD.PTR = (uint32_t)p_buffer;
|
|
p_reg->TXD.MAXCNT = length;
|
|
}
|
|
|
|
__STATIC_INLINE void nrf_twim_rx_buffer_set(NRF_TWIM_Type * p_reg,
|
|
uint8_t * p_buffer,
|
|
uint8_t length)
|
|
{
|
|
p_reg->RXD.PTR = (uint32_t)p_buffer;
|
|
p_reg->RXD.MAXCNT = length;
|
|
}
|
|
|
|
__STATIC_INLINE void nrf_twim_shorts_set(NRF_TWIM_Type * p_reg,
|
|
uint32_t shorts_mask)
|
|
{
|
|
p_reg->SHORTS = shorts_mask;
|
|
}
|
|
|
|
__STATIC_INLINE uint32_t nrf_twim_txd_amount_get(NRF_TWIM_Type * p_reg)
|
|
{
|
|
return p_reg->TXD.AMOUNT;
|
|
}
|
|
|
|
__STATIC_INLINE uint32_t nrf_twim_rxd_amount_get(NRF_TWIM_Type * p_reg)
|
|
{
|
|
return p_reg->RXD.AMOUNT;
|
|
}
|
|
|
|
__STATIC_INLINE void nrf_twim_tx_list_enable(NRF_TWIM_Type * p_reg)
|
|
{
|
|
p_reg->TXD.LIST = 1;
|
|
}
|
|
|
|
__STATIC_INLINE void nrf_twim_tx_list_disable(NRF_TWIM_Type * p_reg)
|
|
{
|
|
p_reg->TXD.LIST = 0;
|
|
}
|
|
|
|
__STATIC_INLINE void nrf_twim_rx_list_enable(NRF_TWIM_Type * p_reg)
|
|
{
|
|
p_reg->RXD.LIST = 1;
|
|
}
|
|
|
|
__STATIC_INLINE void nrf_twim_rx_list_disable(NRF_TWIM_Type * p_reg)
|
|
{
|
|
p_reg->RXD.LIST = 0;
|
|
}
|
|
#endif // SUPPRESS_INLINE_IMPLEMENTATION
|
|
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif // NRF_TWIM_H__
|