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

Committer:
AnnaBridge
Date:
Thu Nov 08 11:45:42 2018 +0000
Revision:
171:3a7713b1edbc
Parent:
TARGET_NRF51_DK/TARGET_NORDIC/TARGET_NRF5x/TARGET_SDK_11/drivers_nrf/spi_slave/nrf_drv_spis.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 /**@file
AnnaBridge 146:22da6e220af6 41 * @defgroup nrf_spis SPI slave HAL and driver
AnnaBridge 146:22da6e220af6 42 * @ingroup nrf_spi
AnnaBridge 146:22da6e220af6 43 * @brief SPI slave API.
AnnaBridge 146:22da6e220af6 44 * @details The SPIS HAL provides basic APIs for accessing the registers
AnnaBridge 146:22da6e220af6 45 * of the SPIS. The SPIS driver provides APIs on a higher level.
AnnaBridge 146:22da6e220af6 46 **/
AnnaBridge 146:22da6e220af6 47
AnnaBridge 146:22da6e220af6 48 #ifndef SPI_SLAVE_H__
AnnaBridge 146:22da6e220af6 49 #define SPI_SLAVE_H__
AnnaBridge 146:22da6e220af6 50
AnnaBridge 146:22da6e220af6 51 #include <stdint.h>
AnnaBridge 146:22da6e220af6 52 #include "nrf.h"
AnnaBridge 146:22da6e220af6 53 #include "nrf_error.h"
AnnaBridge 146:22da6e220af6 54 #include "nrf_drv_config.h"
AnnaBridge 146:22da6e220af6 55 #include "nrf_spis.h"
AnnaBridge 146:22da6e220af6 56 #include "nrf_gpio.h"
AnnaBridge 146:22da6e220af6 57 #include "sdk_common.h"
AnnaBridge 146:22da6e220af6 58 #include "app_util_platform.h"
AnnaBridge 146:22da6e220af6 59
AnnaBridge 146:22da6e220af6 60 #if defined(NRF52)
AnnaBridge 146:22da6e220af6 61 #define SPIS2_IRQ SPIM2_SPIS2_SPI2_IRQn
AnnaBridge 146:22da6e220af6 62 #define SPIS2_IRQ_HANDLER SPIM2_SPIS2_SPI2_IRQHandler
AnnaBridge 146:22da6e220af6 63 #define SPIS0_IRQ SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQn
AnnaBridge 146:22da6e220af6 64 #define SPIS0_IRQ_HANDLER SPIM0_SPIS0_TWIM0_TWIS0_SPI0_TWI0_IRQHandler
AnnaBridge 146:22da6e220af6 65 #define SPIS1_IRQ SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQn
AnnaBridge 146:22da6e220af6 66 #define SPIS1_IRQ_HANDLER SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1_IRQHandler
AnnaBridge 146:22da6e220af6 67 #else
AnnaBridge 146:22da6e220af6 68 #define SPIS0_IRQ SPI0_TWI0_IRQn
AnnaBridge 146:22da6e220af6 69 #define SPIS0_IRQ_HANDLER SPI0_TWI0_IRQHandler
AnnaBridge 146:22da6e220af6 70 #define SPIS1_IRQ SPI1_TWI1_IRQn
AnnaBridge 146:22da6e220af6 71 #define SPIS1_IRQ_HANDLER SPI1_TWI1_IRQHandler
AnnaBridge 146:22da6e220af6 72 #endif
AnnaBridge 146:22da6e220af6 73
AnnaBridge 146:22da6e220af6 74 /**
AnnaBridge 146:22da6e220af6 75 * @defgroup nrf_drv_spi_slave SPI slave driver
AnnaBridge 146:22da6e220af6 76 * @{
AnnaBridge 146:22da6e220af6 77 * @ingroup nrf_spis
AnnaBridge 146:22da6e220af6 78 *
AnnaBridge 146:22da6e220af6 79 * @brief Multi-instance SPI slave driver.
AnnaBridge 146:22da6e220af6 80 */
AnnaBridge 146:22da6e220af6 81
AnnaBridge 146:22da6e220af6 82 #define NRF_DRV_SPIS_DEFAULT_CSN_PULLUP NRF_GPIO_PIN_NOPULL /**< Default pull-up configuration of the SPI CS. */
AnnaBridge 146:22da6e220af6 83 #define NRF_DRV_SPIS_DEFAULT_MISO_DRIVE NRF_GPIO_PIN_S0S1 /**< Default drive configuration of the SPI MISO. */
AnnaBridge 146:22da6e220af6 84 #define NRF_DRV_SPIS_DEFAULT_DEF 0xFF /**< Default DEF character. */
AnnaBridge 146:22da6e220af6 85 #define NRF_DRV_SPIS_DEFAULT_ORC 0xFF /**< Default ORC character. */
AnnaBridge 146:22da6e220af6 86
AnnaBridge 146:22da6e220af6 87 /**
AnnaBridge 146:22da6e220af6 88 * @brief This value can be provided instead of a pin number for the signals MOSI
AnnaBridge 146:22da6e220af6 89 * and MISO to specify that the given signal is not used and therefore
AnnaBridge 146:22da6e220af6 90 * does not need to be connected to a pin.
AnnaBridge 146:22da6e220af6 91 */
AnnaBridge 146:22da6e220af6 92 #define NRF_DRV_SPIS_PIN_NOT_USED 0xFF
AnnaBridge 146:22da6e220af6 93
AnnaBridge 146:22da6e220af6 94 /** @brief SPIS transaction bit order definitions. */
AnnaBridge 146:22da6e220af6 95 typedef enum
AnnaBridge 146:22da6e220af6 96 {
AnnaBridge 146:22da6e220af6 97 NRF_DRV_SPIS_BIT_ORDER_LSB_FIRST = NRF_SPIS_BIT_ORDER_LSB_FIRST, /**< Least significant bit shifted out first. */
AnnaBridge 146:22da6e220af6 98 NRF_DRV_SPIS_BIT_ORDER_MSB_FIRST = NRF_SPIS_BIT_ORDER_MSB_FIRST /**< Most significant bit shifted out first. */
AnnaBridge 146:22da6e220af6 99 } nrf_drv_spis_endian_t;
AnnaBridge 146:22da6e220af6 100
AnnaBridge 146:22da6e220af6 101 /** @brief SPIS mode definitions for clock polarity and phase. */
AnnaBridge 146:22da6e220af6 102 typedef enum
AnnaBridge 146:22da6e220af6 103 {
AnnaBridge 146:22da6e220af6 104 NRF_DRV_SPIS_MODE_0 = NRF_SPIS_MODE_0, /**< (CPOL = 0, CPHA = 0). */
AnnaBridge 146:22da6e220af6 105 NRF_DRV_SPIS_MODE_1 = NRF_SPIS_MODE_1, /**< (CPOL = 0, CPHA = 1). */
AnnaBridge 146:22da6e220af6 106 NRF_DRV_SPIS_MODE_2 = NRF_SPIS_MODE_2, /**< (CPOL = 1, CPHA = 0). */
AnnaBridge 146:22da6e220af6 107 NRF_DRV_SPIS_MODE_3 = NRF_SPIS_MODE_3 /**< (CPOL = 1, CPHA = 1). */
AnnaBridge 146:22da6e220af6 108 } nrf_drv_spis_mode_t;
AnnaBridge 146:22da6e220af6 109
AnnaBridge 146:22da6e220af6 110 /** @brief Event callback function event definitions. */
AnnaBridge 146:22da6e220af6 111 typedef enum
AnnaBridge 146:22da6e220af6 112 {
AnnaBridge 146:22da6e220af6 113 NRF_DRV_SPIS_BUFFERS_SET_DONE, /**< Memory buffer set event. Memory buffers have been set successfully to the SPI slave device, and SPI transactions can be done. */
AnnaBridge 146:22da6e220af6 114 NRF_DRV_SPIS_XFER_DONE, /**< SPI transaction event. SPI transaction has been completed. */
AnnaBridge 146:22da6e220af6 115 NRF_DRV_SPIS_EVT_TYPE_MAX /**< Enumeration upper bound. */
AnnaBridge 146:22da6e220af6 116 } nrf_drv_spis_event_type_t;
AnnaBridge 146:22da6e220af6 117
AnnaBridge 146:22da6e220af6 118 /** @brief Structure containing the event context from the SPI slave driver. */
AnnaBridge 146:22da6e220af6 119 typedef struct
AnnaBridge 146:22da6e220af6 120 {
AnnaBridge 146:22da6e220af6 121 nrf_drv_spis_event_type_t evt_type; //!< Type of event.
AnnaBridge 146:22da6e220af6 122 uint32_t rx_amount; //!< Number of bytes received in last transaction. This parameter is only valid for @ref NRF_DRV_SPIS_XFER_DONE events.
AnnaBridge 146:22da6e220af6 123 uint32_t tx_amount; //!< Number of bytes transmitted in last transaction. This parameter is only valid for @ref NRF_DRV_SPIS_XFER_DONE events.
AnnaBridge 146:22da6e220af6 124 } nrf_drv_spis_event_t;
AnnaBridge 146:22da6e220af6 125
AnnaBridge 146:22da6e220af6 126 /** @brief SPI slave driver instance data structure. */
AnnaBridge 146:22da6e220af6 127 typedef struct
AnnaBridge 146:22da6e220af6 128 {
AnnaBridge 146:22da6e220af6 129 NRF_SPIS_Type * p_reg; //!< SPIS instance register.
AnnaBridge 146:22da6e220af6 130 uint8_t instance_id; //!< SPIS instance ID.
AnnaBridge 146:22da6e220af6 131 IRQn_Type irq; //!< IRQ of the specific instance.
AnnaBridge 146:22da6e220af6 132 } nrf_drv_spis_t;
AnnaBridge 146:22da6e220af6 133
AnnaBridge 146:22da6e220af6 134 /** @brief Macro for creating an SPI slave driver instance. */
AnnaBridge 146:22da6e220af6 135 #define NRF_DRV_SPIS_INSTANCE(id) \
AnnaBridge 146:22da6e220af6 136 { \
AnnaBridge 146:22da6e220af6 137 .p_reg = CONCAT_2(NRF_SPIS, id), \
AnnaBridge 146:22da6e220af6 138 .irq = CONCAT_3(SPIS, id, _IRQ), \
AnnaBridge 146:22da6e220af6 139 .instance_id = CONCAT_3(SPIS, id, _INSTANCE_INDEX), \
AnnaBridge 146:22da6e220af6 140 }
AnnaBridge 146:22da6e220af6 141
AnnaBridge 146:22da6e220af6 142 /** @brief SPI slave instance default configuration. */
AnnaBridge 146:22da6e220af6 143 #define NRF_DRV_SPIS_DEFAULT_CONFIG(id) \
AnnaBridge 146:22da6e220af6 144 { \
AnnaBridge 146:22da6e220af6 145 .sck_pin = CONCAT_3(SPIS, id, _CONFIG_SCK_PIN), \
AnnaBridge 146:22da6e220af6 146 .mosi_pin = CONCAT_3(SPIS, id, _CONFIG_MOSI_PIN), \
AnnaBridge 146:22da6e220af6 147 .miso_pin = CONCAT_3(SPIS, id, _CONFIG_MISO_PIN), \
AnnaBridge 146:22da6e220af6 148 .csn_pin = NRF_DRV_SPIS_PIN_NOT_USED, \
AnnaBridge 146:22da6e220af6 149 .miso_drive = NRF_DRV_SPIS_DEFAULT_MISO_DRIVE, \
AnnaBridge 146:22da6e220af6 150 .csn_pullup = NRF_DRV_SPIS_DEFAULT_CSN_PULLUP, \
AnnaBridge 146:22da6e220af6 151 .orc = NRF_DRV_SPIS_DEFAULT_ORC, \
AnnaBridge 146:22da6e220af6 152 .def = NRF_DRV_SPIS_DEFAULT_DEF, \
AnnaBridge 146:22da6e220af6 153 .mode = NRF_DRV_SPIS_MODE_0, \
AnnaBridge 146:22da6e220af6 154 .bit_order = NRF_DRV_SPIS_BIT_ORDER_MSB_FIRST, \
AnnaBridge 146:22da6e220af6 155 .irq_priority = CONCAT_3(SPIS, id, _CONFIG_IRQ_PRIORITY), \
AnnaBridge 146:22da6e220af6 156 }
AnnaBridge 146:22da6e220af6 157
AnnaBridge 146:22da6e220af6 158 /** @brief SPI peripheral device configuration data. */
AnnaBridge 146:22da6e220af6 159 typedef struct
AnnaBridge 146:22da6e220af6 160 {
AnnaBridge 146:22da6e220af6 161 uint32_t miso_pin; //!< SPI MISO pin (optional).
AnnaBridge 146:22da6e220af6 162 /**< Set @ref NRF_DRV_SPIS_PIN_NOT_USED
AnnaBridge 146:22da6e220af6 163 * if this signal is not needed. */
AnnaBridge 146:22da6e220af6 164 uint32_t mosi_pin; //!< SPI MOSI pin (optional).
AnnaBridge 146:22da6e220af6 165 /**< Set @ref NRF_DRV_SPIS_PIN_NOT_USED
AnnaBridge 146:22da6e220af6 166 * if this signal is not needed. */
AnnaBridge 146:22da6e220af6 167 uint32_t sck_pin; //!< SPI SCK pin.
AnnaBridge 146:22da6e220af6 168 uint32_t csn_pin; //!< SPI CSN pin.
AnnaBridge 146:22da6e220af6 169 nrf_drv_spis_mode_t mode; //!< SPI mode.
AnnaBridge 146:22da6e220af6 170 nrf_drv_spis_endian_t bit_order; //!< SPI transaction bit order.
AnnaBridge 146:22da6e220af6 171 nrf_gpio_pin_pull_t csn_pullup; //!< CSN pin pull-up configuration.
AnnaBridge 146:22da6e220af6 172 nrf_gpio_pin_drive_t miso_drive; //!< MISO pin drive configuration.
AnnaBridge 146:22da6e220af6 173 uint8_t def; //!< Character clocked out in case of an ignored transaction.
AnnaBridge 146:22da6e220af6 174 uint8_t orc; //!< Character clocked out after an over-read of the transmit buffer.
AnnaBridge 146:22da6e220af6 175 uint8_t irq_priority; //!< Interrupt priority.
AnnaBridge 146:22da6e220af6 176 } nrf_drv_spis_config_t;
AnnaBridge 146:22da6e220af6 177
AnnaBridge 146:22da6e220af6 178
AnnaBridge 146:22da6e220af6 179 /** @brief SPI slave event callback function type.
AnnaBridge 146:22da6e220af6 180 *
AnnaBridge 146:22da6e220af6 181 * @param[in] event SPI slave driver event.
AnnaBridge 146:22da6e220af6 182 */
AnnaBridge 146:22da6e220af6 183 typedef void (*nrf_drv_spis_event_handler_t)(nrf_drv_spis_event_t event);
AnnaBridge 146:22da6e220af6 184
AnnaBridge 146:22da6e220af6 185 /** @brief Function for initializing the SPI slave driver instance.
AnnaBridge 146:22da6e220af6 186 *
AnnaBridge 146:22da6e220af6 187 * @param[in] p_instance Pointer to the instance structure.
AnnaBridge 146:22da6e220af6 188 * @param[in] p_config Pointer to the structure with the initial configuration.
AnnaBridge 146:22da6e220af6 189 * If NULL, the default configuration will be used.
AnnaBridge 146:22da6e220af6 190 * @param[in] event_handler Function to be called by the SPI slave driver upon event.
AnnaBridge 146:22da6e220af6 191 *
AnnaBridge 146:22da6e220af6 192 * @retval NRF_SUCCESS If the initialization was successful.
AnnaBridge 146:22da6e220af6 193 * @retval NRF_ERROR_INVALID_PARAM If an invalid parameter is supplied.
AnnaBridge 146:22da6e220af6 194 * @retval NRF_ERROR_BUSY If some other peripheral with the same
AnnaBridge 146:22da6e220af6 195 * instance ID is already in use. This is
AnnaBridge 146:22da6e220af6 196 * possible only if PERIPHERAL_RESOURCE_SHARING_ENABLED
AnnaBridge 146:22da6e220af6 197 * is set to a value other than zero.
AnnaBridge 146:22da6e220af6 198 */
AnnaBridge 146:22da6e220af6 199 ret_code_t nrf_drv_spis_init(nrf_drv_spis_t const * const p_instance,
AnnaBridge 146:22da6e220af6 200 nrf_drv_spis_config_t const * p_config,
AnnaBridge 146:22da6e220af6 201 nrf_drv_spis_event_handler_t event_handler);
AnnaBridge 146:22da6e220af6 202
AnnaBridge 146:22da6e220af6 203 /**
AnnaBridge 146:22da6e220af6 204 * @brief Function for uninitializing the SPI slave driver instance.
AnnaBridge 146:22da6e220af6 205 *
AnnaBridge 146:22da6e220af6 206 * @param[in] p_instance Pointer to the instance structure.
AnnaBridge 146:22da6e220af6 207 */
AnnaBridge 146:22da6e220af6 208 void nrf_drv_spis_uninit(nrf_drv_spis_t const * const p_instance);
AnnaBridge 146:22da6e220af6 209
AnnaBridge 146:22da6e220af6 210 /** @brief Function for preparing the SPI slave instance for a single SPI transaction.
AnnaBridge 146:22da6e220af6 211 *
AnnaBridge 146:22da6e220af6 212 * This function prepares the SPI slave device to be ready for a single SPI transaction. It configures
AnnaBridge 146:22da6e220af6 213 * the SPI slave device to use the memory supplied with the function call in SPI transactions.
AnnaBridge 146:22da6e220af6 214 *
AnnaBridge 146:22da6e220af6 215 * When either the memory buffer configuration or the SPI transaction has been
AnnaBridge 146:22da6e220af6 216 * completed, the event callback function will be called with the appropriate event
AnnaBridge 146:22da6e220af6 217 * @ref nrf_drv_spis_event_type_t. Note that the callback function can be called before returning from
AnnaBridge 146:22da6e220af6 218 * this function, because it is called from the SPI slave interrupt context.
AnnaBridge 146:22da6e220af6 219 *
AnnaBridge 146:22da6e220af6 220 * @note This function can be called from the callback function context.
AnnaBridge 146:22da6e220af6 221 *
AnnaBridge 146:22da6e220af6 222 * @note Client applications must call this function after every @ref NRF_DRV_SPIS_XFER_DONE event if
AnnaBridge 146:22da6e220af6 223 * the SPI slave driver should be prepared for a possible new SPI transaction.
AnnaBridge 146:22da6e220af6 224 *
AnnaBridge 146:22da6e220af6 225 * @note Peripherals that are using EasyDMA (for example, SPIS) require the transfer buffers
AnnaBridge 146:22da6e220af6 226 * to be placed in the Data RAM region. Otherwise, this function will fail
AnnaBridge 146:22da6e220af6 227 * with the error code NRF_ERROR_INVALID_ADDR.
AnnaBridge 146:22da6e220af6 228 *
AnnaBridge 146:22da6e220af6 229 * @param[in] p_instance SPIS instance.
AnnaBridge 146:22da6e220af6 230 * @param[in] p_tx_buffer Pointer to the TX buffer.
AnnaBridge 146:22da6e220af6 231 * @param[in] p_rx_buffer Pointer to the RX buffer.
AnnaBridge 146:22da6e220af6 232 * @param[in] tx_buffer_length Length of the TX buffer in bytes.
AnnaBridge 146:22da6e220af6 233 * @param[in] rx_buffer_length Length of the RX buffer in bytes.
AnnaBridge 146:22da6e220af6 234 *
AnnaBridge 146:22da6e220af6 235 * @retval NRF_SUCCESS If the operation was successful.
AnnaBridge 146:22da6e220af6 236 * @retval NRF_ERROR_NULL If the operation failed because a NULL pointer was supplied.
AnnaBridge 146:22da6e220af6 237 * @retval NRF_ERROR_INVALID_STATE If the operation failed because the SPI slave device is in an incorrect state.
AnnaBridge 146:22da6e220af6 238 * @retval NRF_ERROR_INVALID_ADDR If the provided buffers are not placed in the Data
AnnaBridge 146:22da6e220af6 239 * RAM region.
AnnaBridge 146:22da6e220af6 240 * @retval NRF_ERROR_INTERNAL If the operation failed because of an internal error.
AnnaBridge 146:22da6e220af6 241 */
AnnaBridge 146:22da6e220af6 242 ret_code_t nrf_drv_spis_buffers_set(nrf_drv_spis_t const * const p_instance,
AnnaBridge 146:22da6e220af6 243 const uint8_t * p_tx_buffer,
AnnaBridge 146:22da6e220af6 244 uint8_t tx_buffer_length,
AnnaBridge 146:22da6e220af6 245 uint8_t * p_rx_buffer,
AnnaBridge 146:22da6e220af6 246 uint8_t rx_buffer_length);
AnnaBridge 146:22da6e220af6 247
AnnaBridge 146:22da6e220af6 248 #endif // SPI_SLAVE_H__
AnnaBridge 146:22da6e220af6 249
AnnaBridge 146:22da6e220af6 250 /** @} */