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TARGET_SDT51822B/TOOLCHAIN_IAR/nrf_saadc.h@172:65be27845400, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 20:53:29 2019 +0000
Revision:
172:65be27845400
Parent:
171:3a7713b1edbc 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 143:86740a56073b 1 /*
AnnaBridge 143:86740a56073b 2 * Copyright (c) 2015 Nordic Semiconductor ASA
AnnaBridge 143:86740a56073b 3 * All rights reserved.
AnnaBridge 143:86740a56073b 4 *
AnnaBridge 143:86740a56073b 5 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 143:86740a56073b 6 * are permitted provided that the following conditions are met:
AnnaBridge 143:86740a56073b 7 *
AnnaBridge 143:86740a56073b 8 * 1. Redistributions of source code must retain the above copyright notice, this list
AnnaBridge 143:86740a56073b 9 * of conditions and the following disclaimer.
AnnaBridge 143:86740a56073b 10 *
AnnaBridge 143:86740a56073b 11 * 2. Redistributions in binary form, except as embedded into a Nordic Semiconductor ASA
AnnaBridge 143:86740a56073b 12 * integrated circuit in a product or a software update for such product, must reproduce
AnnaBridge 143:86740a56073b 13 * the above copyright notice, this list of conditions and the following disclaimer in
AnnaBridge 143:86740a56073b 14 * the documentation and/or other materials provided with the distribution.
AnnaBridge 143:86740a56073b 15 *
AnnaBridge 143:86740a56073b 16 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its contributors may be
AnnaBridge 143:86740a56073b 17 * used to endorse or promote products derived from this software without specific prior
AnnaBridge 143:86740a56073b 18 * written permission.
AnnaBridge 143:86740a56073b 19 *
AnnaBridge 143:86740a56073b 20 * 4. This software, with or without modification, must only be used with a
AnnaBridge 143:86740a56073b 21 * Nordic Semiconductor ASA integrated circuit.
AnnaBridge 143:86740a56073b 22 *
AnnaBridge 143:86740a56073b 23 * 5. Any software provided in binary or object form under this license must not be reverse
AnnaBridge 143:86740a56073b 24 * engineered, decompiled, modified and/or disassembled.
AnnaBridge 143:86740a56073b 25 *
AnnaBridge 143:86740a56073b 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
AnnaBridge 143:86740a56073b 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
AnnaBridge 143:86740a56073b 28 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 143:86740a56073b 29 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
AnnaBridge 143:86740a56073b 30 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
AnnaBridge 143:86740a56073b 31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
AnnaBridge 143:86740a56073b 32 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
AnnaBridge 143:86740a56073b 33 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
AnnaBridge 143:86740a56073b 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
AnnaBridge 143:86740a56073b 35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 143:86740a56073b 36 *
AnnaBridge 143:86740a56073b 37 */
AnnaBridge 143:86740a56073b 38
AnnaBridge 143:86740a56073b 39
AnnaBridge 143:86740a56073b 40
AnnaBridge 143:86740a56073b 41 #ifndef NRF_SAADC_H_
AnnaBridge 143:86740a56073b 42 #define NRF_SAADC_H_
AnnaBridge 143:86740a56073b 43
AnnaBridge 143:86740a56073b 44 #ifdef NRF52
AnnaBridge 143:86740a56073b 45
AnnaBridge 143:86740a56073b 46 /**
AnnaBridge 143:86740a56073b 47 * @defgroup nrf_saadc_hal SAADC HAL
AnnaBridge 143:86740a56073b 48 * @{
AnnaBridge 143:86740a56073b 49 * @ingroup nrf_saadc
AnnaBridge 143:86740a56073b 50 *
AnnaBridge 143:86740a56073b 51 * @brief @tagAPI52 Hardware access layer for accessing the SAADC peripheral.
AnnaBridge 143:86740a56073b 52 */
AnnaBridge 143:86740a56073b 53
AnnaBridge 143:86740a56073b 54 #include <stdbool.h>
AnnaBridge 143:86740a56073b 55 #include <stddef.h>
AnnaBridge 143:86740a56073b 56 #include "nrf.h"
AnnaBridge 143:86740a56073b 57 #include "nrf_assert.h"
AnnaBridge 143:86740a56073b 58
AnnaBridge 143:86740a56073b 59
AnnaBridge 143:86740a56073b 60
AnnaBridge 143:86740a56073b 61 #define NRF_SAADC_CHANNEL_COUNT 8
AnnaBridge 143:86740a56073b 62
AnnaBridge 143:86740a56073b 63 /**
AnnaBridge 143:86740a56073b 64 * @brief Resolution of the analog-to-digital converter.
AnnaBridge 143:86740a56073b 65 */
AnnaBridge 143:86740a56073b 66 typedef enum
AnnaBridge 143:86740a56073b 67 {
AnnaBridge 143:86740a56073b 68 NRF_SAADC_RESOLUTION_8BIT = SAADC_RESOLUTION_VAL_8bit, ///< 8 bit resolution.
AnnaBridge 143:86740a56073b 69 NRF_SAADC_RESOLUTION_10BIT = SAADC_RESOLUTION_VAL_10bit, ///< 10 bit resolution.
AnnaBridge 143:86740a56073b 70 NRF_SAADC_RESOLUTION_12BIT = SAADC_RESOLUTION_VAL_12bit, ///< 12 bit resolution.
AnnaBridge 143:86740a56073b 71 NRF_SAADC_RESOLUTION_14BIT = SAADC_RESOLUTION_VAL_14bit ///< 14 bit resolution.
AnnaBridge 143:86740a56073b 72 } nrf_saadc_resolution_t;
AnnaBridge 143:86740a56073b 73
AnnaBridge 143:86740a56073b 74
AnnaBridge 143:86740a56073b 75 /**
AnnaBridge 143:86740a56073b 76 * @brief Input selection for the analog-to-digital converter.
AnnaBridge 143:86740a56073b 77 */
AnnaBridge 143:86740a56073b 78 typedef enum
AnnaBridge 143:86740a56073b 79 {
AnnaBridge 143:86740a56073b 80 NRF_SAADC_INPUT_DISABLED = SAADC_CH_PSELP_PSELP_NC, ///< Not connected.
AnnaBridge 143:86740a56073b 81 NRF_SAADC_INPUT_AIN0 = SAADC_CH_PSELP_PSELP_AnalogInput0, ///< Analog input 0 (AIN0).
AnnaBridge 143:86740a56073b 82 NRF_SAADC_INPUT_AIN1 = SAADC_CH_PSELP_PSELP_AnalogInput1, ///< Analog input 1 (AIN1).
AnnaBridge 143:86740a56073b 83 NRF_SAADC_INPUT_AIN2 = SAADC_CH_PSELP_PSELP_AnalogInput2, ///< Analog input 2 (AIN2).
AnnaBridge 143:86740a56073b 84 NRF_SAADC_INPUT_AIN3 = SAADC_CH_PSELP_PSELP_AnalogInput3, ///< Analog input 3 (AIN3).
AnnaBridge 143:86740a56073b 85 NRF_SAADC_INPUT_AIN4 = SAADC_CH_PSELP_PSELP_AnalogInput4, ///< Analog input 4 (AIN4).
AnnaBridge 143:86740a56073b 86 NRF_SAADC_INPUT_AIN5 = SAADC_CH_PSELP_PSELP_AnalogInput5, ///< Analog input 5 (AIN5).
AnnaBridge 143:86740a56073b 87 NRF_SAADC_INPUT_AIN6 = SAADC_CH_PSELP_PSELP_AnalogInput6, ///< Analog input 6 (AIN6).
AnnaBridge 143:86740a56073b 88 NRF_SAADC_INPUT_AIN7 = SAADC_CH_PSELP_PSELP_AnalogInput7, ///< Analog input 7 (AIN7).
AnnaBridge 143:86740a56073b 89 NRF_SAADC_INPUT_VDD = SAADC_CH_PSELP_PSELP_VDD ///< VDD as input.
AnnaBridge 143:86740a56073b 90 } nrf_saadc_input_t;
AnnaBridge 143:86740a56073b 91
AnnaBridge 143:86740a56073b 92
AnnaBridge 143:86740a56073b 93 /**
AnnaBridge 143:86740a56073b 94 * @brief Analog-to-digital converter oversampling mode.
AnnaBridge 143:86740a56073b 95 */
AnnaBridge 143:86740a56073b 96 typedef enum
AnnaBridge 143:86740a56073b 97 {
AnnaBridge 143:86740a56073b 98 NRF_SAADC_OVERSAMPLE_DISABLED = SAADC_OVERSAMPLE_OVERSAMPLE_Bypass, ///< No oversampling.
AnnaBridge 143:86740a56073b 99 NRF_SAADC_OVERSAMPLE_2X = SAADC_OVERSAMPLE_OVERSAMPLE_Over2x, ///< Oversample 2x.
AnnaBridge 143:86740a56073b 100 NRF_SAADC_OVERSAMPLE_4X = SAADC_OVERSAMPLE_OVERSAMPLE_Over4x, ///< Oversample 4x.
AnnaBridge 143:86740a56073b 101 NRF_SAADC_OVERSAMPLE_8X = SAADC_OVERSAMPLE_OVERSAMPLE_Over8x, ///< Oversample 8x.
AnnaBridge 143:86740a56073b 102 NRF_SAADC_OVERSAMPLE_16X = SAADC_OVERSAMPLE_OVERSAMPLE_Over16x, ///< Oversample 16x.
AnnaBridge 143:86740a56073b 103 NRF_SAADC_OVERSAMPLE_32X = SAADC_OVERSAMPLE_OVERSAMPLE_Over32x, ///< Oversample 32x.
AnnaBridge 143:86740a56073b 104 NRF_SAADC_OVERSAMPLE_64X = SAADC_OVERSAMPLE_OVERSAMPLE_Over64x, ///< Oversample 64x.
AnnaBridge 143:86740a56073b 105 NRF_SAADC_OVERSAMPLE_128X = SAADC_OVERSAMPLE_OVERSAMPLE_Over128x, ///< Oversample 128x.
AnnaBridge 143:86740a56073b 106 NRF_SAADC_OVERSAMPLE_256X = SAADC_OVERSAMPLE_OVERSAMPLE_Over256x ///< Oversample 256x.
AnnaBridge 143:86740a56073b 107 } nrf_saadc_oversample_t;
AnnaBridge 143:86740a56073b 108
AnnaBridge 143:86740a56073b 109
AnnaBridge 143:86740a56073b 110 /**
AnnaBridge 143:86740a56073b 111 * @brief Analog-to-digital converter channel resistor control.
AnnaBridge 143:86740a56073b 112 */
AnnaBridge 143:86740a56073b 113 typedef enum
AnnaBridge 143:86740a56073b 114 {
AnnaBridge 143:86740a56073b 115 NRF_SAADC_RESISTOR_DISABLED = SAADC_CH_CONFIG_RESP_Bypass, ///< Bypass resistor ladder.
AnnaBridge 143:86740a56073b 116 NRF_SAADC_RESISTOR_PULLDOWN = SAADC_CH_CONFIG_RESP_Pulldown, ///< Pull-down to GND.
AnnaBridge 143:86740a56073b 117 NRF_SAADC_RESISTOR_PULLUP = SAADC_CH_CONFIG_RESP_Pullup, ///< Pull-up to VDD.
AnnaBridge 143:86740a56073b 118 NRF_SAADC_RESISTOR_VDD1_2 = SAADC_CH_CONFIG_RESP_VDD1_2 ///< Set input at VDD/2.
AnnaBridge 143:86740a56073b 119 } nrf_saadc_resistor_t;
AnnaBridge 143:86740a56073b 120
AnnaBridge 143:86740a56073b 121
AnnaBridge 143:86740a56073b 122 /**
AnnaBridge 143:86740a56073b 123 * @brief Gain factor of the analog-to-digital converter input.
AnnaBridge 143:86740a56073b 124 */
AnnaBridge 143:86740a56073b 125 typedef enum
AnnaBridge 143:86740a56073b 126 {
AnnaBridge 143:86740a56073b 127 NRF_SAADC_GAIN1_6 = SAADC_CH_CONFIG_GAIN_Gain1_6, ///< Gain factor 1/6.
AnnaBridge 143:86740a56073b 128 NRF_SAADC_GAIN1_5 = SAADC_CH_CONFIG_GAIN_Gain1_5, ///< Gain factor 1/5.
AnnaBridge 143:86740a56073b 129 NRF_SAADC_GAIN1_4 = SAADC_CH_CONFIG_GAIN_Gain1_4, ///< Gain factor 1/4.
AnnaBridge 143:86740a56073b 130 NRF_SAADC_GAIN1_3 = SAADC_CH_CONFIG_GAIN_Gain1_3, ///< Gain factor 1/3.
AnnaBridge 143:86740a56073b 131 NRF_SAADC_GAIN1_2 = SAADC_CH_CONFIG_GAIN_Gain1_2, ///< Gain factor 1/2.
AnnaBridge 143:86740a56073b 132 NRF_SAADC_GAIN1 = SAADC_CH_CONFIG_GAIN_Gain1, ///< Gain factor 1.
AnnaBridge 143:86740a56073b 133 NRF_SAADC_GAIN2 = SAADC_CH_CONFIG_GAIN_Gain2, ///< Gain factor 2.
AnnaBridge 143:86740a56073b 134 NRF_SAADC_GAIN4 = SAADC_CH_CONFIG_GAIN_Gain4, ///< Gain factor 4.
AnnaBridge 143:86740a56073b 135 } nrf_saadc_gain_t;
AnnaBridge 143:86740a56073b 136
AnnaBridge 143:86740a56073b 137
AnnaBridge 143:86740a56073b 138 /**
AnnaBridge 143:86740a56073b 139 * @brief Reference selection for the analog-to-digital converter.
AnnaBridge 143:86740a56073b 140 */
AnnaBridge 143:86740a56073b 141 typedef enum
AnnaBridge 143:86740a56073b 142 {
AnnaBridge 143:86740a56073b 143 NRF_SAADC_REFERENCE_INTERNAL = SAADC_CH_CONFIG_REFSEL_Internal, ///< Internal reference (0.6 V).
AnnaBridge 143:86740a56073b 144 NRF_SAADC_REFERENCE_VDD4 = SAADC_CH_CONFIG_REFSEL_VDD1_4 ///< VDD/4 as reference.
AnnaBridge 143:86740a56073b 145 } nrf_saadc_reference_t;
AnnaBridge 143:86740a56073b 146
AnnaBridge 143:86740a56073b 147
AnnaBridge 143:86740a56073b 148 /**
AnnaBridge 143:86740a56073b 149 * @brief Analog-to-digital converter acquisition time.
AnnaBridge 143:86740a56073b 150 */
AnnaBridge 143:86740a56073b 151 typedef enum
AnnaBridge 143:86740a56073b 152 {
AnnaBridge 143:86740a56073b 153 NRF_SAADC_ACQTIME_3US = SAADC_CH_CONFIG_TACQ_3us, ///< 3 us.
AnnaBridge 143:86740a56073b 154 NRF_SAADC_ACQTIME_5US = SAADC_CH_CONFIG_TACQ_5us, ///< 5 us.
AnnaBridge 143:86740a56073b 155 NRF_SAADC_ACQTIME_10US = SAADC_CH_CONFIG_TACQ_10us, ///< 10 us.
AnnaBridge 143:86740a56073b 156 NRF_SAADC_ACQTIME_15US = SAADC_CH_CONFIG_TACQ_15us, ///< 15 us.
AnnaBridge 143:86740a56073b 157 NRF_SAADC_ACQTIME_20US = SAADC_CH_CONFIG_TACQ_20us, ///< 20 us.
AnnaBridge 143:86740a56073b 158 NRF_SAADC_ACQTIME_40US = SAADC_CH_CONFIG_TACQ_40us ///< 40 us.
AnnaBridge 143:86740a56073b 159 } nrf_saadc_acqtime_t;
AnnaBridge 143:86740a56073b 160
AnnaBridge 143:86740a56073b 161
AnnaBridge 143:86740a56073b 162 /**
AnnaBridge 143:86740a56073b 163 * @brief Analog-to-digital converter channel mode.
AnnaBridge 143:86740a56073b 164 */
AnnaBridge 143:86740a56073b 165 typedef enum
AnnaBridge 143:86740a56073b 166 {
AnnaBridge 143:86740a56073b 167 NRF_SAADC_MODE_SINGLE_ENDED = SAADC_CH_CONFIG_MODE_SE, ///< Single ended, PSELN will be ignored, negative input to ADC shorted to GND.
AnnaBridge 143:86740a56073b 168 NRF_SAADC_MODE_DIFFERENTIAL = SAADC_CH_CONFIG_MODE_Diff ///< Differential mode.
AnnaBridge 143:86740a56073b 169 } nrf_saadc_mode_t;
AnnaBridge 143:86740a56073b 170
AnnaBridge 143:86740a56073b 171
AnnaBridge 143:86740a56073b 172 /**
AnnaBridge 143:86740a56073b 173 * @brief Analog-to-digital converter tasks.
AnnaBridge 143:86740a56073b 174 */
AnnaBridge 143:86740a56073b 175 typedef enum /*lint -save -e30 -esym(628,__INTADDR__) */
AnnaBridge 143:86740a56073b 176 {
AnnaBridge 143:86740a56073b 177 NRF_SAADC_TASK_START = offsetof(NRF_SAADC_Type, TASKS_START), ///< Start the ADC and prepare the result buffer in RAM.
AnnaBridge 143:86740a56073b 178 NRF_SAADC_TASK_SAMPLE = offsetof(NRF_SAADC_Type, TASKS_SAMPLE), ///< Take one ADC sample. If scan is enabled, all channels are sampled.
AnnaBridge 143:86740a56073b 179 NRF_SAADC_TASK_STOP = offsetof(NRF_SAADC_Type, TASKS_STOP), ///< Stop the ADC and terminate any on-going conversion.
AnnaBridge 143:86740a56073b 180 NRF_SAADC_TASK_CALIBRATEOFFSET = offsetof(NRF_SAADC_Type, TASKS_CALIBRATEOFFSET), ///< Starts offset auto-calibration.
AnnaBridge 143:86740a56073b 181 } nrf_saadc_task_t;
AnnaBridge 143:86740a56073b 182
AnnaBridge 143:86740a56073b 183
AnnaBridge 143:86740a56073b 184 /**
AnnaBridge 143:86740a56073b 185 * @brief Analog-to-digital converter events.
AnnaBridge 143:86740a56073b 186 */
AnnaBridge 143:86740a56073b 187 typedef enum /*lint -save -e30 -esym(628,__INTADDR__) */
AnnaBridge 143:86740a56073b 188 {
AnnaBridge 143:86740a56073b 189 NRF_SAADC_EVENT_STARTED = offsetof(NRF_SAADC_Type, EVENTS_STARTED), ///< The ADC has started.
AnnaBridge 143:86740a56073b 190 NRF_SAADC_EVENT_END = offsetof(NRF_SAADC_Type, EVENTS_END), ///< The ADC has filled up the result buffer.
AnnaBridge 143:86740a56073b 191 NRF_SAADC_EVENT_CALIBRATEDONE = offsetof(NRF_SAADC_Type, EVENTS_CALIBRATEDONE), ///< Calibration is complete.
AnnaBridge 143:86740a56073b 192 NRF_SAADC_EVENT_STOPPED = offsetof(NRF_SAADC_Type, EVENTS_STOPPED), ///< The ADC has stopped.
AnnaBridge 143:86740a56073b 193 NRF_SAADC_EVENT_CH0_LIMITH = offsetof(NRF_SAADC_Type, EVENTS_CH[0].LIMITH), ///< Last result is equal or above CH[0].LIMIT.HIGH.
AnnaBridge 143:86740a56073b 194 NRF_SAADC_EVENT_CH0_LIMITL = offsetof(NRF_SAADC_Type, EVENTS_CH[0].LIMITL), ///< Last result is equal or below CH[0].LIMIT.LOW.
AnnaBridge 143:86740a56073b 195 NRF_SAADC_EVENT_CH1_LIMITH = offsetof(NRF_SAADC_Type, EVENTS_CH[1].LIMITH), ///< Last result is equal or above CH[1].LIMIT.HIGH.
AnnaBridge 143:86740a56073b 196 NRF_SAADC_EVENT_CH1_LIMITL = offsetof(NRF_SAADC_Type, EVENTS_CH[1].LIMITL), ///< Last result is equal or below CH[1].LIMIT.LOW.
AnnaBridge 143:86740a56073b 197 NRF_SAADC_EVENT_CH2_LIMITH = offsetof(NRF_SAADC_Type, EVENTS_CH[2].LIMITH), ///< Last result is equal or above CH[2].LIMIT.HIGH.
AnnaBridge 143:86740a56073b 198 NRF_SAADC_EVENT_CH2_LIMITL = offsetof(NRF_SAADC_Type, EVENTS_CH[2].LIMITL), ///< Last result is equal or below CH[2].LIMIT.LOW.
AnnaBridge 143:86740a56073b 199 NRF_SAADC_EVENT_CH3_LIMITH = offsetof(NRF_SAADC_Type, EVENTS_CH[3].LIMITH), ///< Last result is equal or above CH[3].LIMIT.HIGH.
AnnaBridge 143:86740a56073b 200 NRF_SAADC_EVENT_CH3_LIMITL = offsetof(NRF_SAADC_Type, EVENTS_CH[3].LIMITL), ///< Last result is equal or below CH[3].LIMIT.LOW.
AnnaBridge 143:86740a56073b 201 NRF_SAADC_EVENT_CH4_LIMITH = offsetof(NRF_SAADC_Type, EVENTS_CH[4].LIMITH), ///< Last result is equal or above CH[4].LIMIT.HIGH.
AnnaBridge 143:86740a56073b 202 NRF_SAADC_EVENT_CH4_LIMITL = offsetof(NRF_SAADC_Type, EVENTS_CH[4].LIMITL), ///< Last result is equal or below CH[4].LIMIT.LOW.
AnnaBridge 143:86740a56073b 203 NRF_SAADC_EVENT_CH5_LIMITH = offsetof(NRF_SAADC_Type, EVENTS_CH[5].LIMITH), ///< Last result is equal or above CH[5].LIMIT.HIGH.
AnnaBridge 143:86740a56073b 204 NRF_SAADC_EVENT_CH5_LIMITL = offsetof(NRF_SAADC_Type, EVENTS_CH[5].LIMITL), ///< Last result is equal or below CH[5].LIMIT.LOW.
AnnaBridge 143:86740a56073b 205 NRF_SAADC_EVENT_CH6_LIMITH = offsetof(NRF_SAADC_Type, EVENTS_CH[6].LIMITH), ///< Last result is equal or above CH[6].LIMIT.HIGH.
AnnaBridge 143:86740a56073b 206 NRF_SAADC_EVENT_CH6_LIMITL = offsetof(NRF_SAADC_Type, EVENTS_CH[6].LIMITL), ///< Last result is equal or below CH[6].LIMIT.LOW.
AnnaBridge 143:86740a56073b 207 NRF_SAADC_EVENT_CH7_LIMITH = offsetof(NRF_SAADC_Type, EVENTS_CH[7].LIMITH), ///< Last result is equal or above CH[7].LIMIT.HIGH.
AnnaBridge 143:86740a56073b 208 NRF_SAADC_EVENT_CH7_LIMITL = offsetof(NRF_SAADC_Type, EVENTS_CH[7].LIMITL) ///< Last result is equal or below CH[7].LIMIT.LOW.
AnnaBridge 143:86740a56073b 209 } nrf_saadc_event_t;
AnnaBridge 143:86740a56073b 210
AnnaBridge 143:86740a56073b 211
AnnaBridge 143:86740a56073b 212 /**
AnnaBridge 143:86740a56073b 213 * @brief Analog-to-digital converter interrupt masks.
AnnaBridge 143:86740a56073b 214 */
AnnaBridge 143:86740a56073b 215 typedef enum
AnnaBridge 143:86740a56073b 216 {
AnnaBridge 143:86740a56073b 217 NRF_SAADC_INT_STARTED = SAADC_INTENSET_STARTED_Msk, ///< Interrupt on EVENTS_STARTED event.
AnnaBridge 143:86740a56073b 218 NRF_SAADC_INT_END = SAADC_INTENSET_END_Msk, ///< Interrupt on EVENTS_END event.
AnnaBridge 143:86740a56073b 219 NRF_SAADC_INT_STOPPED = SAADC_INTENSET_STOPPED_Msk, ///< Interrupt on EVENTS_STOPPED event.
AnnaBridge 143:86740a56073b 220 NRF_SAADC_INT_CH0LIMITH = SAADC_INTENSET_CH0LIMITH_Msk, ///< Interrupt on EVENTS_CH[0].LIMITH event.
AnnaBridge 143:86740a56073b 221 NRF_SAADC_INT_CH0LIMITL = SAADC_INTENSET_CH0LIMITL_Msk, ///< Interrupt on EVENTS_CH[0].LIMITL event.
AnnaBridge 143:86740a56073b 222 NRF_SAADC_INT_CH1LIMITH = SAADC_INTENSET_CH1LIMITH_Msk, ///< Interrupt on EVENTS_CH[1].LIMITH event.
AnnaBridge 143:86740a56073b 223 NRF_SAADC_INT_CH1LIMITL = SAADC_INTENSET_CH1LIMITL_Msk, ///< Interrupt on EVENTS_CH[1].LIMITL event.
AnnaBridge 143:86740a56073b 224 NRF_SAADC_INT_CH2LIMITH = SAADC_INTENSET_CH2LIMITH_Msk, ///< Interrupt on EVENTS_CH[2].LIMITH event.
AnnaBridge 143:86740a56073b 225 NRF_SAADC_INT_CH2LIMITL = SAADC_INTENSET_CH2LIMITL_Msk, ///< Interrupt on EVENTS_CH[2].LIMITL event.
AnnaBridge 143:86740a56073b 226 NRF_SAADC_INT_CH3LIMITH = SAADC_INTENSET_CH3LIMITH_Msk, ///< Interrupt on EVENTS_CH[3].LIMITH event.
AnnaBridge 143:86740a56073b 227 NRF_SAADC_INT_CH3LIMITL = SAADC_INTENSET_CH3LIMITL_Msk, ///< Interrupt on EVENTS_CH[3].LIMITL event.
AnnaBridge 143:86740a56073b 228 NRF_SAADC_INT_CH4LIMITH = SAADC_INTENSET_CH4LIMITH_Msk, ///< Interrupt on EVENTS_CH[4].LIMITH event.
AnnaBridge 143:86740a56073b 229 NRF_SAADC_INT_CH4LIMITL = SAADC_INTENSET_CH4LIMITL_Msk, ///< Interrupt on EVENTS_CH[4].LIMITL event.
AnnaBridge 143:86740a56073b 230 NRF_SAADC_INT_CH5LIMITH = SAADC_INTENSET_CH5LIMITH_Msk, ///< Interrupt on EVENTS_CH[5].LIMITH event.
AnnaBridge 143:86740a56073b 231 NRF_SAADC_INT_CH5LIMITL = SAADC_INTENSET_CH5LIMITL_Msk, ///< Interrupt on EVENTS_CH[5].LIMITL event.
AnnaBridge 143:86740a56073b 232 NRF_SAADC_INT_CH6LIMITH = SAADC_INTENSET_CH6LIMITH_Msk, ///< Interrupt on EVENTS_CH[6].LIMITH event.
AnnaBridge 143:86740a56073b 233 NRF_SAADC_INT_CH6LIMITL = SAADC_INTENSET_CH6LIMITL_Msk, ///< Interrupt on EVENTS_CH[6].LIMITL event.
AnnaBridge 143:86740a56073b 234 NRF_SAADC_INT_CH7LIMITH = SAADC_INTENSET_CH7LIMITH_Msk, ///< Interrupt on EVENTS_CH[7].LIMITH event.
AnnaBridge 143:86740a56073b 235 NRF_SAADC_INT_CH7LIMITL = SAADC_INTENSET_CH7LIMITL_Msk, ///< Interrupt on EVENTS_CH[7].LIMITL event.
AnnaBridge 143:86740a56073b 236 NRF_SAADC_INT_ALL = 0x7FFFFFFFUL ///< Mask of all interrupts.
AnnaBridge 143:86740a56073b 237 } nrf_saadc_int_mask_t;
AnnaBridge 143:86740a56073b 238
AnnaBridge 143:86740a56073b 239
AnnaBridge 143:86740a56073b 240 /**
AnnaBridge 143:86740a56073b 241 * @brief Analog-to-digital converter value limit type.
AnnaBridge 143:86740a56073b 242 */
AnnaBridge 143:86740a56073b 243 typedef enum
AnnaBridge 143:86740a56073b 244 {
AnnaBridge 143:86740a56073b 245 NRF_SAADC_LIMIT_LOW = 0,
AnnaBridge 143:86740a56073b 246 NRF_SAADC_LIMIT_HIGH = 1
AnnaBridge 143:86740a56073b 247 } nrf_saadc_limit_t;
AnnaBridge 143:86740a56073b 248
AnnaBridge 143:86740a56073b 249
AnnaBridge 143:86740a56073b 250 typedef int16_t nrf_saadc_value_t; ///< Type of a single ADC conversion result.
AnnaBridge 143:86740a56073b 251
AnnaBridge 143:86740a56073b 252
AnnaBridge 143:86740a56073b 253 /**
AnnaBridge 143:86740a56073b 254 * @brief Analog-to-digital converter configuration structure.
AnnaBridge 143:86740a56073b 255 */
AnnaBridge 143:86740a56073b 256 typedef struct
AnnaBridge 143:86740a56073b 257 {
AnnaBridge 143:86740a56073b 258 nrf_saadc_resolution_t resolution;
AnnaBridge 143:86740a56073b 259 nrf_saadc_oversample_t oversample;
AnnaBridge 143:86740a56073b 260 nrf_saadc_value_t * buffer;
AnnaBridge 143:86740a56073b 261 uint32_t buffer_size;
AnnaBridge 143:86740a56073b 262 } nrf_saadc_config_t;
AnnaBridge 143:86740a56073b 263
AnnaBridge 143:86740a56073b 264
AnnaBridge 143:86740a56073b 265 /**
AnnaBridge 143:86740a56073b 266 * @brief Analog-to-digital converter channel configuration structure.
AnnaBridge 143:86740a56073b 267 */
AnnaBridge 143:86740a56073b 268 typedef struct
AnnaBridge 143:86740a56073b 269 {
AnnaBridge 143:86740a56073b 270 nrf_saadc_resistor_t resistor_p;
AnnaBridge 143:86740a56073b 271 nrf_saadc_resistor_t resistor_n;
AnnaBridge 143:86740a56073b 272 nrf_saadc_gain_t gain;
AnnaBridge 143:86740a56073b 273 nrf_saadc_reference_t reference;
AnnaBridge 143:86740a56073b 274 nrf_saadc_acqtime_t acq_time;
AnnaBridge 143:86740a56073b 275 nrf_saadc_mode_t mode;
AnnaBridge 143:86740a56073b 276 nrf_saadc_input_t pin_p;
AnnaBridge 143:86740a56073b 277 nrf_saadc_input_t pin_n;
AnnaBridge 143:86740a56073b 278 } nrf_saadc_channel_config_t;
AnnaBridge 143:86740a56073b 279
AnnaBridge 143:86740a56073b 280
AnnaBridge 143:86740a56073b 281 /**
AnnaBridge 143:86740a56073b 282 * @brief Function for triggering a specific SAADC task.
AnnaBridge 143:86740a56073b 283 *
AnnaBridge 143:86740a56073b 284 * @param[in] saadc_task SAADC task.
AnnaBridge 143:86740a56073b 285 */
AnnaBridge 143:86740a56073b 286 __STATIC_INLINE void nrf_saadc_task_trigger(nrf_saadc_task_t saadc_task)
AnnaBridge 143:86740a56073b 287 {
AnnaBridge 143:86740a56073b 288 *((volatile uint32_t *)((uint8_t *)NRF_SAADC + (uint32_t)saadc_task)) = 0x1UL;
AnnaBridge 143:86740a56073b 289 }
AnnaBridge 143:86740a56073b 290
AnnaBridge 143:86740a56073b 291
AnnaBridge 143:86740a56073b 292 /**
AnnaBridge 143:86740a56073b 293 * @brief Function for getting the address of a specific SAADC task register.
AnnaBridge 143:86740a56073b 294 *
AnnaBridge 143:86740a56073b 295 * @param[in] saadc_task SAADC task.
AnnaBridge 143:86740a56073b 296 *
AnnaBridge 143:86740a56073b 297 * @return Address of the specified SAADC task.
AnnaBridge 143:86740a56073b 298 */
AnnaBridge 143:86740a56073b 299 __STATIC_INLINE uint32_t nrf_saadc_task_address_get(nrf_saadc_task_t saadc_task)
AnnaBridge 143:86740a56073b 300 {
AnnaBridge 143:86740a56073b 301 return (uint32_t)((uint8_t *)NRF_SAADC + (uint32_t)saadc_task);
AnnaBridge 143:86740a56073b 302 }
AnnaBridge 143:86740a56073b 303
AnnaBridge 143:86740a56073b 304
AnnaBridge 143:86740a56073b 305 /**
AnnaBridge 143:86740a56073b 306 * @brief Function for getting the state of a specific SAADC event.
AnnaBridge 143:86740a56073b 307 *
AnnaBridge 143:86740a56073b 308 * @param[in] saadc_event SAADC event.
AnnaBridge 143:86740a56073b 309 *
AnnaBridge 143:86740a56073b 310 * @return State of the specified SAADC event.
AnnaBridge 143:86740a56073b 311 */
AnnaBridge 143:86740a56073b 312 __STATIC_INLINE bool nrf_saadc_event_check(nrf_saadc_event_t saadc_event)
AnnaBridge 143:86740a56073b 313 {
AnnaBridge 143:86740a56073b 314 return (bool)*(volatile uint32_t *)((uint8_t *)NRF_SAADC + (uint32_t)saadc_event);
AnnaBridge 143:86740a56073b 315 }
AnnaBridge 143:86740a56073b 316
AnnaBridge 143:86740a56073b 317
AnnaBridge 143:86740a56073b 318 /**
AnnaBridge 143:86740a56073b 319 * @brief Function for clearing the specific SAADC event.
AnnaBridge 143:86740a56073b 320 *
AnnaBridge 143:86740a56073b 321 * @param[in] saadc_event SAADC event.
AnnaBridge 143:86740a56073b 322 */
AnnaBridge 143:86740a56073b 323 __STATIC_INLINE void nrf_saadc_event_clear(nrf_saadc_event_t saadc_event)
AnnaBridge 143:86740a56073b 324 {
AnnaBridge 143:86740a56073b 325 *((volatile uint32_t *)((uint8_t *)NRF_SAADC + (uint32_t)saadc_event)) = 0x0UL;
AnnaBridge 143:86740a56073b 326 }
AnnaBridge 143:86740a56073b 327
AnnaBridge 143:86740a56073b 328
AnnaBridge 143:86740a56073b 329 /**
AnnaBridge 143:86740a56073b 330 * @brief Function for getting the address of a specific SAADC event register.
AnnaBridge 143:86740a56073b 331 *
AnnaBridge 143:86740a56073b 332 * @param[in] saadc_event SAADC event.
AnnaBridge 143:86740a56073b 333 *
AnnaBridge 143:86740a56073b 334 * @return Address of the specified SAADC event.
AnnaBridge 143:86740a56073b 335 */
AnnaBridge 143:86740a56073b 336 __STATIC_INLINE volatile uint32_t * nrf_saadc_event_address_get(nrf_saadc_event_t saadc_event)
AnnaBridge 143:86740a56073b 337 {
AnnaBridge 143:86740a56073b 338 return (volatile uint32_t *)((uint8_t *)NRF_SAADC + (uint32_t)saadc_event);
AnnaBridge 143:86740a56073b 339 }
AnnaBridge 143:86740a56073b 340
AnnaBridge 143:86740a56073b 341
AnnaBridge 143:86740a56073b 342 /**
AnnaBridge 143:86740a56073b 343 * @brief Function for getting the address of a specific SAADC limit event register.
AnnaBridge 143:86740a56073b 344 *
AnnaBridge 143:86740a56073b 345 * @param[in] channel Channel number.
AnnaBridge 143:86740a56073b 346 * @param[in] limit_type Low limit or high limit.
AnnaBridge 143:86740a56073b 347 *
AnnaBridge 143:86740a56073b 348 * @return Address of the specified SAADC limit event.
AnnaBridge 143:86740a56073b 349 */
AnnaBridge 143:86740a56073b 350 __STATIC_INLINE volatile uint32_t * nrf_saadc_event_limit_address_get(uint8_t channel, nrf_saadc_limit_t limit_type)
AnnaBridge 143:86740a56073b 351 {
AnnaBridge 143:86740a56073b 352 ASSERT(channel < NRF_SAADC_CHANNEL_COUNT);
AnnaBridge 143:86740a56073b 353 if (limit_type == NRF_SAADC_LIMIT_HIGH)
AnnaBridge 143:86740a56073b 354 {
AnnaBridge 143:86740a56073b 355 return &NRF_SAADC->EVENTS_CH[channel].LIMITH;
AnnaBridge 143:86740a56073b 356 }
AnnaBridge 143:86740a56073b 357 else
AnnaBridge 143:86740a56073b 358 {
AnnaBridge 143:86740a56073b 359 return &NRF_SAADC->EVENTS_CH[channel].LIMITL;
AnnaBridge 143:86740a56073b 360 }
AnnaBridge 143:86740a56073b 361 }
AnnaBridge 143:86740a56073b 362
AnnaBridge 143:86740a56073b 363
AnnaBridge 143:86740a56073b 364 /**
AnnaBridge 143:86740a56073b 365 * @brief Function for getting the SAADC channel monitoring limit events.
AnnaBridge 143:86740a56073b 366 *
AnnaBridge 143:86740a56073b 367 * @param[in] channel Channel number.
AnnaBridge 143:86740a56073b 368 * @param[in] limit_type Low limit or high limit.
AnnaBridge 143:86740a56073b 369 */
AnnaBridge 143:86740a56073b 370 __STATIC_INLINE nrf_saadc_event_t nrf_saadc_event_limit_get(uint8_t channel, nrf_saadc_limit_t limit_type)
AnnaBridge 143:86740a56073b 371 {
AnnaBridge 143:86740a56073b 372 if (limit_type == NRF_SAADC_LIMIT_HIGH)
AnnaBridge 143:86740a56073b 373 {
AnnaBridge 143:86740a56073b 374 return (nrf_saadc_event_t)( (uint32_t) NRF_SAADC_EVENT_CH0_LIMITH +
AnnaBridge 143:86740a56073b 375 (uint32_t) (NRF_SAADC_EVENT_CH1_LIMITH - NRF_SAADC_EVENT_CH0_LIMITH)
AnnaBridge 143:86740a56073b 376 * (uint32_t) channel );
AnnaBridge 143:86740a56073b 377 }
AnnaBridge 143:86740a56073b 378 else
AnnaBridge 143:86740a56073b 379 {
AnnaBridge 143:86740a56073b 380 return (nrf_saadc_event_t)( (uint32_t) NRF_SAADC_EVENT_CH0_LIMITL +
AnnaBridge 143:86740a56073b 381 (uint32_t) (NRF_SAADC_EVENT_CH1_LIMITL - NRF_SAADC_EVENT_CH0_LIMITL)
AnnaBridge 143:86740a56073b 382 * (uint32_t) channel );
AnnaBridge 143:86740a56073b 383 }
AnnaBridge 143:86740a56073b 384 }
AnnaBridge 143:86740a56073b 385
AnnaBridge 143:86740a56073b 386
AnnaBridge 143:86740a56073b 387 /**
AnnaBridge 143:86740a56073b 388 * @brief Function for configuring the input pins for a specific SAADC channel.
AnnaBridge 143:86740a56073b 389 *
AnnaBridge 143:86740a56073b 390 * @param[in] channel Channel number.
AnnaBridge 143:86740a56073b 391 * @param[in] pselp Positive input.
AnnaBridge 143:86740a56073b 392 * @param[in] pseln Negative input. Set to NRF_SAADC_INPUT_DISABLED in single ended mode.
AnnaBridge 143:86740a56073b 393 */
AnnaBridge 143:86740a56073b 394 __STATIC_INLINE void nrf_saadc_channel_input_set(uint8_t channel,
AnnaBridge 143:86740a56073b 395 nrf_saadc_input_t pselp,
AnnaBridge 143:86740a56073b 396 nrf_saadc_input_t pseln)
AnnaBridge 143:86740a56073b 397 {
AnnaBridge 143:86740a56073b 398 NRF_SAADC->CH[channel].PSELN = pseln;
AnnaBridge 143:86740a56073b 399 NRF_SAADC->CH[channel].PSELP = pselp;
AnnaBridge 143:86740a56073b 400 }
AnnaBridge 143:86740a56073b 401
AnnaBridge 143:86740a56073b 402
AnnaBridge 143:86740a56073b 403 /**
AnnaBridge 143:86740a56073b 404 * @brief Function for setting the SAADC channel monitoring limits.
AnnaBridge 143:86740a56073b 405 *
AnnaBridge 143:86740a56073b 406 * @param[in] channel Channel number.
AnnaBridge 143:86740a56073b 407 * @param[in] low Low limit.
AnnaBridge 143:86740a56073b 408 * @param[in] high High limit.
AnnaBridge 143:86740a56073b 409 */
AnnaBridge 143:86740a56073b 410 __STATIC_INLINE void nrf_saadc_channel_limits_set(uint8_t channel, int16_t low, int16_t high)
AnnaBridge 143:86740a56073b 411 {
AnnaBridge 143:86740a56073b 412 NRF_SAADC->CH[channel].LIMIT = (
AnnaBridge 143:86740a56073b 413 (((uint32_t) low << SAADC_CH_LIMIT_LOW_Pos) & SAADC_CH_LIMIT_LOW_Msk)
AnnaBridge 143:86740a56073b 414 | (((uint32_t) high << SAADC_CH_LIMIT_HIGH_Pos) & SAADC_CH_LIMIT_HIGH_Msk));
AnnaBridge 143:86740a56073b 415 }
AnnaBridge 143:86740a56073b 416
AnnaBridge 143:86740a56073b 417
AnnaBridge 143:86740a56073b 418 /**
AnnaBridge 143:86740a56073b 419 * @brief Function for enabling specified SAADC interrupts.
AnnaBridge 143:86740a56073b 420 *
AnnaBridge 143:86740a56073b 421 * @param[in] saadc_int_mask Interrupt(s) to enable.
AnnaBridge 143:86740a56073b 422 */
AnnaBridge 143:86740a56073b 423 __STATIC_INLINE void nrf_saadc_int_enable(uint32_t saadc_int_mask)
AnnaBridge 143:86740a56073b 424 {
AnnaBridge 143:86740a56073b 425 NRF_SAADC->INTENSET = saadc_int_mask;
AnnaBridge 143:86740a56073b 426 }
AnnaBridge 143:86740a56073b 427
AnnaBridge 143:86740a56073b 428
AnnaBridge 143:86740a56073b 429 /**
AnnaBridge 143:86740a56073b 430 * @brief Function for retrieving the state of specified SAADC interrupts.
AnnaBridge 143:86740a56073b 431 *
AnnaBridge 143:86740a56073b 432 * @param[in] saadc_int_mask Interrupt(s) to check.
AnnaBridge 143:86740a56073b 433 *
AnnaBridge 143:86740a56073b 434 * @retval true If all specified interrupts are enabled.
AnnaBridge 143:86740a56073b 435 * @retval false If at least one of the given interrupts is not enabled.
AnnaBridge 143:86740a56073b 436 */
AnnaBridge 143:86740a56073b 437 __STATIC_INLINE bool nrf_saadc_int_enable_check(uint32_t saadc_int_mask)
AnnaBridge 143:86740a56073b 438 {
AnnaBridge 143:86740a56073b 439 return (bool)(NRF_SAADC->INTENSET & saadc_int_mask);
AnnaBridge 143:86740a56073b 440 }
AnnaBridge 143:86740a56073b 441
AnnaBridge 143:86740a56073b 442
AnnaBridge 143:86740a56073b 443 /**
AnnaBridge 143:86740a56073b 444 * @brief Function for disabling specified interrupts.
AnnaBridge 143:86740a56073b 445 *
AnnaBridge 143:86740a56073b 446 * @param saadc_int_mask Interrupt(s) to disable.
AnnaBridge 143:86740a56073b 447 */
AnnaBridge 143:86740a56073b 448 __STATIC_INLINE void nrf_saadc_int_disable(uint32_t saadc_int_mask)
AnnaBridge 143:86740a56073b 449 {
AnnaBridge 143:86740a56073b 450 NRF_SAADC->INTENCLR = saadc_int_mask;
AnnaBridge 143:86740a56073b 451 }
AnnaBridge 143:86740a56073b 452
AnnaBridge 143:86740a56073b 453
AnnaBridge 143:86740a56073b 454 /**
AnnaBridge 143:86740a56073b 455 * @brief Function for generating masks for SAADC channel limit interrupts.
AnnaBridge 143:86740a56073b 456 *
AnnaBridge 143:86740a56073b 457 * @param[in] channel SAADC channel number.
AnnaBridge 143:86740a56073b 458 * @param[in] limit_type Limit type.
AnnaBridge 143:86740a56073b 459 *
AnnaBridge 143:86740a56073b 460 * @returns Interrupt mask.
AnnaBridge 143:86740a56073b 461 */
AnnaBridge 143:86740a56073b 462 __STATIC_INLINE uint32_t nrf_saadc_limit_int_get(uint8_t channel, nrf_saadc_limit_t limit_type)
AnnaBridge 143:86740a56073b 463 {
AnnaBridge 143:86740a56073b 464 ASSERT(channel < NRF_SAADC_CHANNEL_COUNT);
AnnaBridge 143:86740a56073b 465 uint32_t mask = (limit_type == NRF_SAADC_LIMIT_LOW) ? NRF_SAADC_INT_CH0LIMITL : NRF_SAADC_INT_CH0LIMITH;
AnnaBridge 143:86740a56073b 466 return mask << (channel * 2);
AnnaBridge 143:86740a56073b 467 }
AnnaBridge 143:86740a56073b 468
AnnaBridge 143:86740a56073b 469
AnnaBridge 143:86740a56073b 470 /**
AnnaBridge 143:86740a56073b 471 * @brief Function for checking whether the SAADC is busy.
AnnaBridge 143:86740a56073b 472 *
AnnaBridge 143:86740a56073b 473 * This function checks whether the analog-to-digital converter is busy with a conversion.
AnnaBridge 143:86740a56073b 474 *
AnnaBridge 143:86740a56073b 475 * @retval true If the SAADC is busy.
AnnaBridge 143:86740a56073b 476 * @retval false If the SAADC is not busy.
AnnaBridge 143:86740a56073b 477 */
AnnaBridge 143:86740a56073b 478 __STATIC_INLINE bool nrf_saadc_busy_check(void)
AnnaBridge 143:86740a56073b 479 {
AnnaBridge 143:86740a56073b 480 //return ((NRF_SAADC->STATUS & SAADC_STATUS_STATUS_Msk) == SAADC_STATUS_STATUS_Msk);
AnnaBridge 143:86740a56073b 481 //simplified for performance
AnnaBridge 143:86740a56073b 482 return NRF_SAADC->STATUS;
AnnaBridge 143:86740a56073b 483 }
AnnaBridge 143:86740a56073b 484
AnnaBridge 143:86740a56073b 485
AnnaBridge 143:86740a56073b 486 /**
AnnaBridge 143:86740a56073b 487 * @brief Function for enabling the SAADC.
AnnaBridge 143:86740a56073b 488 *
AnnaBridge 143:86740a56073b 489 * The analog-to-digital converter must be enabled before use.
AnnaBridge 143:86740a56073b 490 */
AnnaBridge 143:86740a56073b 491 __STATIC_INLINE void nrf_saadc_enable(void)
AnnaBridge 143:86740a56073b 492 {
AnnaBridge 143:86740a56073b 493 NRF_SAADC->ENABLE = (SAADC_ENABLE_ENABLE_Enabled << SAADC_ENABLE_ENABLE_Pos);
AnnaBridge 143:86740a56073b 494 }
AnnaBridge 143:86740a56073b 495
AnnaBridge 143:86740a56073b 496
AnnaBridge 143:86740a56073b 497 /**
AnnaBridge 143:86740a56073b 498 * @brief Function for disabling the SAADC.
AnnaBridge 143:86740a56073b 499 */
AnnaBridge 143:86740a56073b 500 __STATIC_INLINE void nrf_saadc_disable(void)
AnnaBridge 143:86740a56073b 501 {
AnnaBridge 143:86740a56073b 502 NRF_SAADC->ENABLE = (SAADC_ENABLE_ENABLE_Disabled << SAADC_ENABLE_ENABLE_Pos);
AnnaBridge 143:86740a56073b 503 }
AnnaBridge 143:86740a56073b 504
AnnaBridge 143:86740a56073b 505
AnnaBridge 143:86740a56073b 506 /**
AnnaBridge 143:86740a56073b 507 * @brief Function for checking if the SAADC is enabled.
AnnaBridge 143:86740a56073b 508 *
AnnaBridge 143:86740a56073b 509 * @retval true If the SAADC is enabled.
AnnaBridge 143:86740a56073b 510 * @retval false If the SAADC is not enabled.
AnnaBridge 143:86740a56073b 511 */
AnnaBridge 143:86740a56073b 512 __STATIC_INLINE bool nrf_saadc_enable_check(void)
AnnaBridge 143:86740a56073b 513 {
AnnaBridge 143:86740a56073b 514 //simplified for performance
AnnaBridge 143:86740a56073b 515 return NRF_SAADC->ENABLE;
AnnaBridge 143:86740a56073b 516 }
AnnaBridge 143:86740a56073b 517
AnnaBridge 143:86740a56073b 518
AnnaBridge 143:86740a56073b 519 /**
AnnaBridge 143:86740a56073b 520 * @brief Function for initializing the SAADC result buffer.
AnnaBridge 143:86740a56073b 521 *
AnnaBridge 143:86740a56073b 522 * @param[in] buffer Pointer to the result buffer.
AnnaBridge 143:86740a56073b 523 * @param[in] num Size of buffer in words.
AnnaBridge 143:86740a56073b 524 */
AnnaBridge 143:86740a56073b 525 __STATIC_INLINE void nrf_saadc_buffer_init(nrf_saadc_value_t * buffer, uint32_t num)
AnnaBridge 143:86740a56073b 526 {
AnnaBridge 143:86740a56073b 527 NRF_SAADC->RESULT.PTR = (uint32_t)buffer;
AnnaBridge 143:86740a56073b 528 NRF_SAADC->RESULT.MAXCNT = num;
AnnaBridge 143:86740a56073b 529 }
AnnaBridge 143:86740a56073b 530
AnnaBridge 143:86740a56073b 531 /**
AnnaBridge 143:86740a56073b 532 * @brief Function for getting the number of buffer words transferred since last START operation.
AnnaBridge 143:86740a56073b 533 *
AnnaBridge 143:86740a56073b 534 * @returns Number of words transferred.
AnnaBridge 143:86740a56073b 535 */
AnnaBridge 143:86740a56073b 536 __STATIC_INLINE uint16_t nrf_saadc_amount_get(void)
AnnaBridge 143:86740a56073b 537 {
AnnaBridge 143:86740a56073b 538 return NRF_SAADC->RESULT.AMOUNT;
AnnaBridge 143:86740a56073b 539 }
AnnaBridge 143:86740a56073b 540
AnnaBridge 143:86740a56073b 541
AnnaBridge 143:86740a56073b 542 /**
AnnaBridge 143:86740a56073b 543 * @brief Function for setting the SAADC sample resolution.
AnnaBridge 143:86740a56073b 544 *
AnnaBridge 143:86740a56073b 545 * @param[in] resolution Bit resolution.
AnnaBridge 143:86740a56073b 546 */
AnnaBridge 143:86740a56073b 547 __STATIC_INLINE void nrf_saadc_resolution_set(nrf_saadc_resolution_t resolution)
AnnaBridge 143:86740a56073b 548 {
AnnaBridge 143:86740a56073b 549 NRF_SAADC->RESOLUTION = resolution;
AnnaBridge 143:86740a56073b 550 }
AnnaBridge 143:86740a56073b 551
AnnaBridge 143:86740a56073b 552
AnnaBridge 143:86740a56073b 553 /**
AnnaBridge 143:86740a56073b 554 * @brief Function for configuring the oversampling feature.
AnnaBridge 143:86740a56073b 555 *
AnnaBridge 143:86740a56073b 556 * @param[in] oversample Oversampling mode.
AnnaBridge 143:86740a56073b 557 */
AnnaBridge 143:86740a56073b 558 __STATIC_INLINE void nrf_saadc_oversample_set(nrf_saadc_oversample_t oversample)
AnnaBridge 143:86740a56073b 559 {
AnnaBridge 143:86740a56073b 560 NRF_SAADC->OVERSAMPLE = oversample;
AnnaBridge 143:86740a56073b 561 }
AnnaBridge 143:86740a56073b 562
AnnaBridge 143:86740a56073b 563 /**
AnnaBridge 143:86740a56073b 564 * @brief Function for getting the oversampling feature configuration.
AnnaBridge 143:86740a56073b 565 *
AnnaBridge 143:86740a56073b 566 * @return Oversampling configuration.
AnnaBridge 143:86740a56073b 567 */
AnnaBridge 143:86740a56073b 568 __STATIC_INLINE nrf_saadc_oversample_t nrf_saadc_oversample_get(void)
AnnaBridge 143:86740a56073b 569 {
AnnaBridge 143:86740a56073b 570 return (nrf_saadc_oversample_t)NRF_SAADC->OVERSAMPLE;
AnnaBridge 143:86740a56073b 571 }
AnnaBridge 143:86740a56073b 572
AnnaBridge 143:86740a56073b 573 /**
AnnaBridge 143:86740a56073b 574 * @brief Function for initializing the SAADC channel.
AnnaBridge 143:86740a56073b 575 *
AnnaBridge 143:86740a56073b 576 * @param[in] channel Channel number.
AnnaBridge 143:86740a56073b 577 * @param[in] config Pointer to the channel configuration structure.
AnnaBridge 143:86740a56073b 578 */
AnnaBridge 143:86740a56073b 579 void nrf_saadc_channel_init(uint8_t channel, nrf_saadc_channel_config_t const * const config);
AnnaBridge 143:86740a56073b 580
AnnaBridge 143:86740a56073b 581 /**
AnnaBridge 143:86740a56073b 582 *@}
AnnaBridge 143:86740a56073b 583 **/
AnnaBridge 143:86740a56073b 584
AnnaBridge 143:86740a56073b 585 #endif // NRF52
AnnaBridge 143:86740a56073b 586
AnnaBridge 143:86740a56073b 587 #endif /* NRF_SAADC_H_ */