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mbed 2

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TARGET_TY51822R3/TOOLCHAIN_IAR/nrf_spi.h@171:3a7713b1edbc, 2018-11-08 (annotated)

Committer:
AnnaBridge
Date:
Thu Nov 08 11:45:42 2018 +0000
Revision:
171:3a7713b1edbc
Parent:
TARGET_NRF51_DONGLE/TARGET_NORDIC/TARGET_NRF5x/TARGET_SDK_11/drivers_nrf/hal/nrf_spi.h@169:a7c7b631e539 
mbed library. Release version 164

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 146:22da6e220af6 1 /*
AnnaBridge 146:22da6e220af6 2 * Copyright (c) 2015 Nordic Semiconductor ASA
AnnaBridge 146:22da6e220af6 3 * All rights reserved.
AnnaBridge 146:22da6e220af6 4 *
AnnaBridge 146:22da6e220af6 5 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 146:22da6e220af6 6 * are permitted provided that the following conditions are met:
AnnaBridge 146:22da6e220af6 7 *
AnnaBridge 146:22da6e220af6 8 * 1. Redistributions of source code must retain the above copyright notice, this list
AnnaBridge 146:22da6e220af6 9 * of conditions and the following disclaimer.
AnnaBridge 146:22da6e220af6 10 *
AnnaBridge 146:22da6e220af6 11 * 2. Redistributions in binary form, except as embedded into a Nordic Semiconductor ASA
AnnaBridge 146:22da6e220af6 12 * integrated circuit in a product or a software update for such product, must reproduce
AnnaBridge 146:22da6e220af6 13 * the above copyright notice, this list of conditions and the following disclaimer in
AnnaBridge 146:22da6e220af6 14 * the documentation and/or other materials provided with the distribution.
AnnaBridge 146:22da6e220af6 15 *
AnnaBridge 146:22da6e220af6 16 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its contributors may be
AnnaBridge 146:22da6e220af6 17 * used to endorse or promote products derived from this software without specific prior
AnnaBridge 146:22da6e220af6 18 * written permission.
AnnaBridge 146:22da6e220af6 19 *
AnnaBridge 146:22da6e220af6 20 * 4. This software, with or without modification, must only be used with a
AnnaBridge 146:22da6e220af6 21 * Nordic Semiconductor ASA integrated circuit.
AnnaBridge 146:22da6e220af6 22 *
AnnaBridge 146:22da6e220af6 23 * 5. Any software provided in binary or object form under this license must not be reverse
AnnaBridge 146:22da6e220af6 24 * engineered, decompiled, modified and/or disassembled.
AnnaBridge 146:22da6e220af6 25 *
AnnaBridge 146:22da6e220af6 26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
AnnaBridge 146:22da6e220af6 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
AnnaBridge 146:22da6e220af6 28 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 146:22da6e220af6 29 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
AnnaBridge 146:22da6e220af6 30 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
AnnaBridge 146:22da6e220af6 31 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
AnnaBridge 146:22da6e220af6 32 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
AnnaBridge 146:22da6e220af6 33 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
AnnaBridge 146:22da6e220af6 34 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
AnnaBridge 146:22da6e220af6 35 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 146:22da6e220af6 36 *
AnnaBridge 146:22da6e220af6 37 */
AnnaBridge 146:22da6e220af6 38
AnnaBridge 146:22da6e220af6 39
AnnaBridge 146:22da6e220af6 40 /**
AnnaBridge 146:22da6e220af6 41 * @defgroup nrf_spi_hal SPI HAL
AnnaBridge 146:22da6e220af6 42 * @{
AnnaBridge 146:22da6e220af6 43 * @ingroup nrf_spi_master
AnnaBridge 146:22da6e220af6 44 *
AnnaBridge 146:22da6e220af6 45 * @brief Hardware access layer for accessing the SPI peripheral.
AnnaBridge 146:22da6e220af6 46 */
AnnaBridge 146:22da6e220af6 47
AnnaBridge 146:22da6e220af6 48 #ifndef NRF_SPI_H__
AnnaBridge 146:22da6e220af6 49 #define NRF_SPI_H__
AnnaBridge 146:22da6e220af6 50
AnnaBridge 146:22da6e220af6 51 #include <stddef.h>
AnnaBridge 146:22da6e220af6 52 #include <stdbool.h>
AnnaBridge 146:22da6e220af6 53 #include <stdint.h>
AnnaBridge 146:22da6e220af6 54
AnnaBridge 146:22da6e220af6 55 #include "nrf.h"
AnnaBridge 146:22da6e220af6 56
AnnaBridge 146:22da6e220af6 57
AnnaBridge 146:22da6e220af6 58 /**
AnnaBridge 146:22da6e220af6 59 * @brief This value can be used as a parameter for the @ref nrf_spi_pins_set
AnnaBridge 146:22da6e220af6 60 * function to specify that a given SPI signal (SCK, MOSI, or MISO)
AnnaBridge 146:22da6e220af6 61 * shall not be connected to a physical pin.
AnnaBridge 146:22da6e220af6 62 */
AnnaBridge 146:22da6e220af6 63 #define NRF_SPI_PIN_NOT_CONNECTED 0xFFFFFFFF
AnnaBridge 146:22da6e220af6 64
AnnaBridge 146:22da6e220af6 65
AnnaBridge 146:22da6e220af6 66 /**
AnnaBridge 146:22da6e220af6 67 * @brief SPI events.
AnnaBridge 146:22da6e220af6 68 */
AnnaBridge 146:22da6e220af6 69 typedef enum
AnnaBridge 146:22da6e220af6 70 {
AnnaBridge 146:22da6e220af6 71 /*lint -save -e30*/
AnnaBridge 146:22da6e220af6 72 NRF_SPI_EVENT_READY = offsetof(NRF_SPI_Type, EVENTS_READY) ///< TXD byte sent and RXD byte received.
AnnaBridge 146:22da6e220af6 73 /*lint -restore*/
AnnaBridge 146:22da6e220af6 74 } nrf_spi_event_t;
AnnaBridge 146:22da6e220af6 75
AnnaBridge 146:22da6e220af6 76 /**
AnnaBridge 146:22da6e220af6 77 * @brief SPI interrupts.
AnnaBridge 146:22da6e220af6 78 */
AnnaBridge 146:22da6e220af6 79 typedef enum
AnnaBridge 146:22da6e220af6 80 {
AnnaBridge 146:22da6e220af6 81 NRF_SPI_INT_READY_MASK = SPI_INTENSET_READY_Msk ///< Interrupt on READY event.
AnnaBridge 146:22da6e220af6 82 } nrf_spi_int_mask_t;
AnnaBridge 146:22da6e220af6 83
AnnaBridge 146:22da6e220af6 84 /**
AnnaBridge 146:22da6e220af6 85 * @brief SPI data rates.
AnnaBridge 146:22da6e220af6 86 */
AnnaBridge 146:22da6e220af6 87 typedef enum
AnnaBridge 146:22da6e220af6 88 {
AnnaBridge 146:22da6e220af6 89 NRF_SPI_FREQ_125K = SPI_FREQUENCY_FREQUENCY_K125, ///< 125 kbps.
AnnaBridge 146:22da6e220af6 90 NRF_SPI_FREQ_250K = SPI_FREQUENCY_FREQUENCY_K250, ///< 250 kbps.
AnnaBridge 146:22da6e220af6 91 NRF_SPI_FREQ_500K = SPI_FREQUENCY_FREQUENCY_K500, ///< 500 kbps.
AnnaBridge 146:22da6e220af6 92 NRF_SPI_FREQ_1M = SPI_FREQUENCY_FREQUENCY_M1, ///< 1 Mbps.
AnnaBridge 146:22da6e220af6 93 NRF_SPI_FREQ_2M = SPI_FREQUENCY_FREQUENCY_M2, ///< 2 Mbps.
AnnaBridge 146:22da6e220af6 94 NRF_SPI_FREQ_4M = SPI_FREQUENCY_FREQUENCY_M4, ///< 4 Mbps.
AnnaBridge 146:22da6e220af6 95 // [conversion to 'int' needed to prevent compilers from complaining
AnnaBridge 146:22da6e220af6 96 // that the provided value (0x80000000UL) is out of range of "int"]
AnnaBridge 146:22da6e220af6 97 NRF_SPI_FREQ_8M = (int)SPI_FREQUENCY_FREQUENCY_M8 ///< 8 Mbps.
AnnaBridge 146:22da6e220af6 98 } nrf_spi_frequency_t;
AnnaBridge 146:22da6e220af6 99
AnnaBridge 146:22da6e220af6 100 /**
AnnaBridge 146:22da6e220af6 101 * @brief SPI modes.
AnnaBridge 146:22da6e220af6 102 */
AnnaBridge 146:22da6e220af6 103 typedef enum
AnnaBridge 146:22da6e220af6 104 {
AnnaBridge 146:22da6e220af6 105 NRF_SPI_MODE_0, ///< SCK active high, sample on leading edge of clock.
AnnaBridge 146:22da6e220af6 106 NRF_SPI_MODE_1, ///< SCK active high, sample on trailing edge of clock.
AnnaBridge 146:22da6e220af6 107 NRF_SPI_MODE_2, ///< SCK active low, sample on leading edge of clock.
AnnaBridge 146:22da6e220af6 108 NRF_SPI_MODE_3 ///< SCK active low, sample on trailing edge of clock.
AnnaBridge 146:22da6e220af6 109 } nrf_spi_mode_t;
AnnaBridge 146:22da6e220af6 110
AnnaBridge 146:22da6e220af6 111 /**
AnnaBridge 146:22da6e220af6 112 * @brief SPI bit orders.
AnnaBridge 146:22da6e220af6 113 */
AnnaBridge 146:22da6e220af6 114 typedef enum
AnnaBridge 146:22da6e220af6 115 {
AnnaBridge 146:22da6e220af6 116 NRF_SPI_BIT_ORDER_MSB_FIRST = SPI_CONFIG_ORDER_MsbFirst, ///< Most significant bit shifted out first.
AnnaBridge 146:22da6e220af6 117 NRF_SPI_BIT_ORDER_LSB_FIRST = SPI_CONFIG_ORDER_LsbFirst ///< Least significant bit shifted out first.
AnnaBridge 146:22da6e220af6 118 } nrf_spi_bit_order_t;
AnnaBridge 146:22da6e220af6 119
AnnaBridge 146:22da6e220af6 120
AnnaBridge 146:22da6e220af6 121 /**
AnnaBridge 146:22da6e220af6 122 * @brief Function for clearing a specific SPI event.
AnnaBridge 146:22da6e220af6 123 *
AnnaBridge 146:22da6e220af6 124 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 125 * @param[in] spi_event Event to clear.
AnnaBridge 146:22da6e220af6 126 */
AnnaBridge 146:22da6e220af6 127 __STATIC_INLINE void nrf_spi_event_clear(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 128 nrf_spi_event_t spi_event);
AnnaBridge 146:22da6e220af6 129
AnnaBridge 146:22da6e220af6 130 /**
AnnaBridge 146:22da6e220af6 131 * @brief Function for checking the state of a specific SPI event.
AnnaBridge 146:22da6e220af6 132 *
AnnaBridge 146:22da6e220af6 133 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 134 * @param[in] spi_event Event to check.
AnnaBridge 146:22da6e220af6 135 *
AnnaBridge 146:22da6e220af6 136 * @retval true If the event is set.
AnnaBridge 146:22da6e220af6 137 * @retval false If the event is not set.
AnnaBridge 146:22da6e220af6 138 */
AnnaBridge 146:22da6e220af6 139 __STATIC_INLINE bool nrf_spi_event_check(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 140 nrf_spi_event_t spi_event);
AnnaBridge 146:22da6e220af6 141
AnnaBridge 146:22da6e220af6 142 /**
AnnaBridge 146:22da6e220af6 143 * @brief Function for getting the address of a specific SPI event register.
AnnaBridge 146:22da6e220af6 144 *
AnnaBridge 146:22da6e220af6 145 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 146 * @param[in] spi_event Requested event.
AnnaBridge 146:22da6e220af6 147 *
AnnaBridge 146:22da6e220af6 148 * @return Address of the specified event register.
AnnaBridge 146:22da6e220af6 149 */
AnnaBridge 146:22da6e220af6 150 __STATIC_INLINE uint32_t * nrf_spi_event_address_get(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 151 nrf_spi_event_t spi_event);
AnnaBridge 146:22da6e220af6 152
AnnaBridge 146:22da6e220af6 153 /**
AnnaBridge 146:22da6e220af6 154 * @brief Function for enabling specified interrupts.
AnnaBridge 146:22da6e220af6 155 *
AnnaBridge 146:22da6e220af6 156 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 157 * @param[in] spi_int_mask Interrupts to enable.
AnnaBridge 146:22da6e220af6 158 */
AnnaBridge 146:22da6e220af6 159 __STATIC_INLINE void nrf_spi_int_enable(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 160 uint32_t spi_int_mask);
AnnaBridge 146:22da6e220af6 161
AnnaBridge 146:22da6e220af6 162 /**
AnnaBridge 146:22da6e220af6 163 * @brief Function for disabling specified interrupts.
AnnaBridge 146:22da6e220af6 164 *
AnnaBridge 146:22da6e220af6 165 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 166 * @param[in] spi_int_mask Interrupts to disable.
AnnaBridge 146:22da6e220af6 167 */
AnnaBridge 146:22da6e220af6 168 __STATIC_INLINE void nrf_spi_int_disable(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 169 uint32_t spi_int_mask);
AnnaBridge 146:22da6e220af6 170
AnnaBridge 146:22da6e220af6 171 /**
AnnaBridge 146:22da6e220af6 172 * @brief Function for retrieving the state of a given interrupt.
AnnaBridge 146:22da6e220af6 173 *
AnnaBridge 146:22da6e220af6 174 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 175 * @param[in] spi_int Interrupt to check.
AnnaBridge 146:22da6e220af6 176 *
AnnaBridge 146:22da6e220af6 177 * @retval true If the interrupt is enabled.
AnnaBridge 146:22da6e220af6 178 * @retval false If the interrupt is not enabled.
AnnaBridge 146:22da6e220af6 179 */
AnnaBridge 146:22da6e220af6 180 __STATIC_INLINE bool nrf_spi_int_enable_check(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 181 nrf_spi_int_mask_t spi_int);
AnnaBridge 146:22da6e220af6 182
AnnaBridge 146:22da6e220af6 183 /**
AnnaBridge 146:22da6e220af6 184 * @brief Function for enabling the SPI peripheral.
AnnaBridge 146:22da6e220af6 185 *
AnnaBridge 146:22da6e220af6 186 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 187 */
AnnaBridge 146:22da6e220af6 188 __STATIC_INLINE void nrf_spi_enable(NRF_SPI_Type * p_spi);
AnnaBridge 146:22da6e220af6 189
AnnaBridge 146:22da6e220af6 190 /**
AnnaBridge 146:22da6e220af6 191 * @brief Function for disabling the SPI peripheral.
AnnaBridge 146:22da6e220af6 192 *
AnnaBridge 146:22da6e220af6 193 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 194 */
AnnaBridge 146:22da6e220af6 195 __STATIC_INLINE void nrf_spi_disable(NRF_SPI_Type * p_spi);
AnnaBridge 146:22da6e220af6 196
AnnaBridge 146:22da6e220af6 197 /**
AnnaBridge 146:22da6e220af6 198 * @brief Function for configuring SPI pins.
AnnaBridge 146:22da6e220af6 199 *
AnnaBridge 146:22da6e220af6 200 * If a given signal is not needed, pass the @ref NRF_SPI_PIN_NOT_CONNECTED
AnnaBridge 146:22da6e220af6 201 * value instead of its pin number.
AnnaBridge 146:22da6e220af6 202 *
AnnaBridge 146:22da6e220af6 203 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 204 * @param[in] sck_pin SCK pin number.
AnnaBridge 146:22da6e220af6 205 * @param[in] mosi_pin MOSI pin number.
AnnaBridge 146:22da6e220af6 206 * @param[in] miso_pin MISO pin number.
AnnaBridge 146:22da6e220af6 207 */
AnnaBridge 146:22da6e220af6 208 __STATIC_INLINE void nrf_spi_pins_set(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 209 uint32_t sck_pin,
AnnaBridge 146:22da6e220af6 210 uint32_t mosi_pin,
AnnaBridge 146:22da6e220af6 211 uint32_t miso_pin);
AnnaBridge 146:22da6e220af6 212
AnnaBridge 146:22da6e220af6 213 /**
AnnaBridge 146:22da6e220af6 214 * @brief Function for writing data to the SPI transmitter register.
AnnaBridge 146:22da6e220af6 215 *
AnnaBridge 146:22da6e220af6 216 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 217 * @param[in] data TX data to send.
AnnaBridge 146:22da6e220af6 218 */
AnnaBridge 146:22da6e220af6 219 __STATIC_INLINE void nrf_spi_txd_set(NRF_SPI_Type * p_spi, uint8_t data);
AnnaBridge 146:22da6e220af6 220
AnnaBridge 146:22da6e220af6 221 /**
AnnaBridge 146:22da6e220af6 222 * @brief Function for reading data from the SPI receiver register.
AnnaBridge 146:22da6e220af6 223 *
AnnaBridge 146:22da6e220af6 224 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 225 *
AnnaBridge 146:22da6e220af6 226 * @return RX data received.
AnnaBridge 146:22da6e220af6 227 */
AnnaBridge 146:22da6e220af6 228 __STATIC_INLINE uint8_t nrf_spi_rxd_get(NRF_SPI_Type * p_spi);
AnnaBridge 146:22da6e220af6 229
AnnaBridge 146:22da6e220af6 230 /**
AnnaBridge 146:22da6e220af6 231 * @brief Function for setting the SPI master data rate.
AnnaBridge 146:22da6e220af6 232 *
AnnaBridge 146:22da6e220af6 233 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 234 * @param[in] frequency SPI frequency.
AnnaBridge 146:22da6e220af6 235 */
AnnaBridge 146:22da6e220af6 236 __STATIC_INLINE void nrf_spi_frequency_set(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 237 nrf_spi_frequency_t frequency);
AnnaBridge 146:22da6e220af6 238
AnnaBridge 146:22da6e220af6 239 /**
AnnaBridge 146:22da6e220af6 240 * @brief Function for setting the SPI configuration.
AnnaBridge 146:22da6e220af6 241 *
AnnaBridge 146:22da6e220af6 242 * @param[in] p_spi SPI instance.
AnnaBridge 146:22da6e220af6 243 * @param[in] spi_mode SPI mode.
AnnaBridge 146:22da6e220af6 244 * @param[in] spi_bit_order SPI bit order.
AnnaBridge 146:22da6e220af6 245 */
AnnaBridge 146:22da6e220af6 246 __STATIC_INLINE void nrf_spi_configure(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 247 nrf_spi_mode_t spi_mode,
AnnaBridge 146:22da6e220af6 248 nrf_spi_bit_order_t spi_bit_order);
AnnaBridge 146:22da6e220af6 249
AnnaBridge 146:22da6e220af6 250
AnnaBridge 146:22da6e220af6 251 #ifndef SUPPRESS_INLINE_IMPLEMENTATION
AnnaBridge 146:22da6e220af6 252
AnnaBridge 146:22da6e220af6 253 __STATIC_INLINE void nrf_spi_event_clear(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 254 nrf_spi_event_t spi_event)
AnnaBridge 146:22da6e220af6 255 {
AnnaBridge 146:22da6e220af6 256 *((volatile uint32_t *)((uint8_t *)p_spi + (uint32_t)spi_event)) = 0x0UL;
AnnaBridge 146:22da6e220af6 257 }
AnnaBridge 146:22da6e220af6 258
AnnaBridge 146:22da6e220af6 259 __STATIC_INLINE bool nrf_spi_event_check(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 260 nrf_spi_event_t spi_event)
AnnaBridge 146:22da6e220af6 261 {
AnnaBridge 146:22da6e220af6 262 return (bool)*(volatile uint32_t *)((uint8_t *)p_spi + (uint32_t)spi_event);
AnnaBridge 146:22da6e220af6 263 }
AnnaBridge 146:22da6e220af6 264
AnnaBridge 146:22da6e220af6 265 __STATIC_INLINE uint32_t * nrf_spi_event_address_get(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 266 nrf_spi_event_t spi_event)
AnnaBridge 146:22da6e220af6 267 {
AnnaBridge 146:22da6e220af6 268 return (uint32_t *)((uint8_t *)p_spi + (uint32_t)spi_event);
AnnaBridge 146:22da6e220af6 269 }
AnnaBridge 146:22da6e220af6 270
AnnaBridge 146:22da6e220af6 271 __STATIC_INLINE void nrf_spi_int_enable(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 272 uint32_t spi_int_mask)
AnnaBridge 146:22da6e220af6 273 {
AnnaBridge 146:22da6e220af6 274 p_spi->INTENSET = spi_int_mask;
AnnaBridge 146:22da6e220af6 275 }
AnnaBridge 146:22da6e220af6 276
AnnaBridge 146:22da6e220af6 277 __STATIC_INLINE void nrf_spi_int_disable(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 278 uint32_t spi_int_mask)
AnnaBridge 146:22da6e220af6 279 {
AnnaBridge 146:22da6e220af6 280 p_spi->INTENCLR = spi_int_mask;
AnnaBridge 146:22da6e220af6 281 }
AnnaBridge 146:22da6e220af6 282
AnnaBridge 146:22da6e220af6 283 __STATIC_INLINE bool nrf_spi_int_enable_check(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 284 nrf_spi_int_mask_t spi_int)
AnnaBridge 146:22da6e220af6 285 {
AnnaBridge 146:22da6e220af6 286 return (bool)(p_spi->INTENSET & spi_int);
AnnaBridge 146:22da6e220af6 287 }
AnnaBridge 146:22da6e220af6 288
AnnaBridge 146:22da6e220af6 289 __STATIC_INLINE void nrf_spi_enable(NRF_SPI_Type * p_spi)
AnnaBridge 146:22da6e220af6 290 {
AnnaBridge 146:22da6e220af6 291 p_spi->ENABLE = (SPI_ENABLE_ENABLE_Enabled << SPI_ENABLE_ENABLE_Pos);
AnnaBridge 146:22da6e220af6 292 }
AnnaBridge 146:22da6e220af6 293
AnnaBridge 146:22da6e220af6 294 __STATIC_INLINE void nrf_spi_disable(NRF_SPI_Type * p_spi)
AnnaBridge 146:22da6e220af6 295 {
AnnaBridge 146:22da6e220af6 296 p_spi->ENABLE = (SPI_ENABLE_ENABLE_Disabled << SPI_ENABLE_ENABLE_Pos);
AnnaBridge 146:22da6e220af6 297 }
AnnaBridge 146:22da6e220af6 298
AnnaBridge 146:22da6e220af6 299 __STATIC_INLINE void nrf_spi_pins_set(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 300 uint32_t sck_pin,
AnnaBridge 146:22da6e220af6 301 uint32_t mosi_pin,
AnnaBridge 146:22da6e220af6 302 uint32_t miso_pin)
AnnaBridge 146:22da6e220af6 303 {
AnnaBridge 146:22da6e220af6 304 p_spi->PSELSCK = sck_pin;
AnnaBridge 146:22da6e220af6 305 p_spi->PSELMOSI = mosi_pin;
AnnaBridge 146:22da6e220af6 306 p_spi->PSELMISO = miso_pin;
AnnaBridge 146:22da6e220af6 307 }
AnnaBridge 146:22da6e220af6 308
AnnaBridge 146:22da6e220af6 309 __STATIC_INLINE void nrf_spi_txd_set(NRF_SPI_Type * p_spi, uint8_t data)
AnnaBridge 146:22da6e220af6 310 {
AnnaBridge 146:22da6e220af6 311 p_spi->TXD = data;
AnnaBridge 146:22da6e220af6 312 }
AnnaBridge 146:22da6e220af6 313
AnnaBridge 146:22da6e220af6 314 __STATIC_INLINE uint8_t nrf_spi_rxd_get(NRF_SPI_Type * p_spi)
AnnaBridge 146:22da6e220af6 315 {
AnnaBridge 146:22da6e220af6 316 return p_spi->RXD;
AnnaBridge 146:22da6e220af6 317 }
AnnaBridge 146:22da6e220af6 318
AnnaBridge 146:22da6e220af6 319 __STATIC_INLINE void nrf_spi_frequency_set(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 320 nrf_spi_frequency_t frequency)
AnnaBridge 146:22da6e220af6 321 {
AnnaBridge 146:22da6e220af6 322 p_spi->FREQUENCY = frequency;
AnnaBridge 146:22da6e220af6 323 }
AnnaBridge 146:22da6e220af6 324
AnnaBridge 146:22da6e220af6 325 __STATIC_INLINE void nrf_spi_configure(NRF_SPI_Type * p_spi,
AnnaBridge 146:22da6e220af6 326 nrf_spi_mode_t spi_mode,
AnnaBridge 146:22da6e220af6 327 nrf_spi_bit_order_t spi_bit_order)
AnnaBridge 146:22da6e220af6 328 {
AnnaBridge 146:22da6e220af6 329 uint32_t config = (spi_bit_order == NRF_SPI_BIT_ORDER_MSB_FIRST ?
AnnaBridge 146:22da6e220af6 330 SPI_CONFIG_ORDER_MsbFirst : SPI_CONFIG_ORDER_LsbFirst);
AnnaBridge 146:22da6e220af6 331 switch (spi_mode)
AnnaBridge 146:22da6e220af6 332 {
AnnaBridge 146:22da6e220af6 333 default:
AnnaBridge 146:22da6e220af6 334 case NRF_SPI_MODE_0:
AnnaBridge 146:22da6e220af6 335 config |= (SPI_CONFIG_CPOL_ActiveHigh << SPI_CONFIG_CPOL_Pos) |
AnnaBridge 146:22da6e220af6 336 (SPI_CONFIG_CPHA_Leading << SPI_CONFIG_CPHA_Pos);
AnnaBridge 146:22da6e220af6 337 break;
AnnaBridge 146:22da6e220af6 338
AnnaBridge 146:22da6e220af6 339 case NRF_SPI_MODE_1:
AnnaBridge 146:22da6e220af6 340 config |= (SPI_CONFIG_CPOL_ActiveHigh << SPI_CONFIG_CPOL_Pos) |
AnnaBridge 146:22da6e220af6 341 (SPI_CONFIG_CPHA_Trailing << SPI_CONFIG_CPHA_Pos);
AnnaBridge 146:22da6e220af6 342 break;
AnnaBridge 146:22da6e220af6 343
AnnaBridge 146:22da6e220af6 344 case NRF_SPI_MODE_2:
AnnaBridge 146:22da6e220af6 345 config |= (SPI_CONFIG_CPOL_ActiveLow << SPI_CONFIG_CPOL_Pos) |
AnnaBridge 146:22da6e220af6 346 (SPI_CONFIG_CPHA_Leading << SPI_CONFIG_CPHA_Pos);
AnnaBridge 146:22da6e220af6 347 break;
AnnaBridge 146:22da6e220af6 348
AnnaBridge 146:22da6e220af6 349 case NRF_SPI_MODE_3:
AnnaBridge 146:22da6e220af6 350 config |= (SPI_CONFIG_CPOL_ActiveLow << SPI_CONFIG_CPOL_Pos) |
AnnaBridge 146:22da6e220af6 351 (SPI_CONFIG_CPHA_Trailing << SPI_CONFIG_CPHA_Pos);
AnnaBridge 146:22da6e220af6 352 break;
AnnaBridge 146:22da6e220af6 353 }
AnnaBridge 146:22da6e220af6 354 p_spi->CONFIG = config;
AnnaBridge 146:22da6e220af6 355 }
AnnaBridge 146:22da6e220af6 356
AnnaBridge 146:22da6e220af6 357 #endif // SUPPRESS_INLINE_IMPLEMENTATION
AnnaBridge 146:22da6e220af6 358
AnnaBridge 146:22da6e220af6 359 #endif // NRF_SPI_H__
AnnaBridge 146:22da6e220af6 360
AnnaBridge 146:22da6e220af6 361 /** @} */