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nrfx: samples: align to nrfx 4.0 API change
- align all samples to nrfx 4.0 API change - add support for the nRF54L15 DK to all existing samples except for the RNG sample. - add sample for the CRACEN driver. - divide existing loopback definitions in `common/nrfx_example.h` into individual header files for each board in `common/boards`. - move pin definitions from individual samples to board header files in `common/boards`. Signed-off-by: Michał Bainczyk <michal.bainczyk@nordicsemi.no>
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‎nrfx/samples/CHANGELOG.md‎

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# Changelog
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All notable changes to this project are documented in this file.
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## [4.0.1] - 2025-11-21
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### Changed
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- Applied nrfx 4.0 changes to existing samples for all drivers.
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- Changed UARTE instance used for console on nRF54L15 DK to UARTE30 as this is the instance used in all other samples. The change was not applied to SPIM-SPIS examples due to conflicting pins.
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## [3.14.0] - 2025-08-22
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### Added
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- Added support for the nRF54L15 DK to all existing samples except for the RNG sample.
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- Added sample for the CRACEN driver.
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### Changed
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- Divided existing loopback definitions in `common/nrfx_example.h` into individual header files for each board in `common/boards`.
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- Moved pin definitions from individual samples to board header files in `common/boards`.
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## [3.8.0] - 2024-10-17
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### Changed
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- Aligned Kconfig definitions to DPPIC multi-instance support in the GPPI and SAADC driver samples.

‎nrfx/samples/common/boards/nrf52833dk_nrf52833_config.h‎

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#ifndef NRF52833DK_NRF52833_CONFIG_H__
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#define NRF52833DK_NRF52833_CONFIG_H__
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#define LOOPBACK_PIN_1A 3
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#define LOOPBACK_PIN_1B 31
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#define LOOPBACK_PIN_2A 4
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#define LOOPBACK_PIN_2B 30
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#define LOOPBACK_PIN_3A 28
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#define LOOPBACK_PIN_3B 29
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#define LOOPBACK_PIN_4A 26
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#define LOOPBACK_PIN_4B 27
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#define LED1_PIN 13
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#define LED2_PIN 14
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#define LED3_PIN 15
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#define LED4_PIN 16
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/* EXAMPLE-SPECIFIC DEFINES: */
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/* NRFX_EGU */
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/** @brief Symbol specifying EGU instance to be used in the nrfx_egu example. */
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#define EGU_INST_IDX 0
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/* NRFX_GPPI */
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/** @brief Symbol specifying TIMER instance to be used in the nrfx_gppi examples. */
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#define GPPI_TIMER_INST_IDX 0
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/** @brief Symbol specifying GPIOTE instance to be used in the nrfx_gppi examples. */
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#define GPPI_GPIOTE_INST_IDX 0
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/** @brief Symbol specifying output pin associated with primary task in the nrfx_gppi examples. */
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#define GPPI_OUTPUT_PIN_PRIMARY LED1_PIN
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/** @brief Symbol specifying output pin associated with fork task in the nrfx_gppi examples. */
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#define GPPI_OUTPUT_PIN_FORK LED2_PIN
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/* NRFX_PWM */
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/** @brief Symbol specifying PWM instance to be used in the nrfx_pwm examples. */
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#define PWM_INST_IDX 0
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/** @brief Symbol specifying a pin connected to LED to be used in the nrfx_pwm examples. */
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#define PWM_LED1_PIN LED1_PIN
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/** @brief Symbol specifying a pin connected to LED to be used in the nrfx_pwm examples. */
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#define PWM_LED2_PIN LED2_PIN
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/** @brief Symbol specifying a pin connected to LED to be used in the nrfx_pwm examples. */
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#define PWM_LED3_PIN LED3_PIN
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/** @brief Symbol specifying a pin connected to LED to be used in the nrfx_pwm examples. */
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#define PWM_LED4_PIN LED4_PIN
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/* NRFX_SAADC */
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/** @brief Symbol specifying GPIOTE instance to be used in the nrfx_saadc examples. */
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#define SAADC_GPIOTE_INST_IDX 0
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/** @brief Symbol specifying timer instance to be used in the nrfx_saadc examples. */
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#define SAADC_TIMER_INST_IDX 0
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/**
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* @brief Symbol specifying the maximum number of SAADC channels that can be used in the
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* nrfx_saadc examples.
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*/
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#define SAADC_MAX_CHANNELS 3
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/** @brief Symbol specifying analog input to be observed by SAADC channel 0 in the nrfx_saadc examples. */
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#define SAADC_CH0_AIN NRFX_ANALOG_EXTERNAL_AIN1
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/** @brief Symbol specifying analog input to be observed by SAADC channel 1 in the nrfx_saadc examples. */
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#define SAADC_CH1_AIN NRFX_ANALOG_EXTERNAL_AIN2
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/** @brief Symbol specifying analog input to be observed by SAADC channel 2 in the nrfx_saadc examples. */
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#define SAADC_CH2_AIN NRFX_ANALOG_EXTERNAL_AIN4
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/** @brief Symbol specifying GPIO pin connected to SAADC channel 0 in the nrfx_saadc examples. */
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#define SAADC_CH0_LOOPBACK_PIN LOOPBACK_PIN_1B
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/** @brief Symbol specifying GPIO pin connected to SAADC channel 1 in the nrfx_saadc examples. */
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#define SAADC_CH1_LOOPBACK_PIN LOOPBACK_PIN_2B
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/** @brief Symbol specifying GPIO pin connected to SAADC channel 2 in the nrfx_saadc examples. */
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#define SAADC_CH2_LOOPBACK_PIN LOOPBACK_PIN_3B
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/* NRFX_SPIM */
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/** @brief Symbol specifying SPIM instance to be used in nrfx_spim examples. */
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#define SPIM_INST_IDX 1
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/* NRFX_SPIM_SPIS */
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/** @brief Symbol specifying SPIM instance to be used in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SPIM_INST_IDX 1
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/** @brief Symbol specifying SPIS instance to be used in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SPIS_INST_IDX 2
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/** @brief Symbol specifying master's pin number for MOSI in nrfx_spim_spis examples. */
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#define SPIM_SPIS_MOSI_PIN_MASTER LOOPBACK_PIN_1A
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/** @brief Symbol specifying slave's pin number for MOSI in nrfx_spim_spis examples. */
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#define SPIM_SPIS_MOSI_PIN_SLAVE LOOPBACK_PIN_1B
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/** @brief Symbol specifying master's pin number for MISO in nrfx_spim_spis examples. */
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#define SPIM_SPIS_MISO_PIN_MASTER LOOPBACK_PIN_2A
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/** @brief Symbol specifying slave's pin number for MISO in nrfx_spim_spis examples. */
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#define SPIM_SPIS_MISO_PIN_SLAVE LOOPBACK_PIN_2B
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/** @brief Symbol specifying master's pin number for SCK in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SCK_PIN_MASTER LOOPBACK_PIN_3A
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/** @brief Symbol specifying slave's pin number for SCK in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SCK_PIN_SLAVE LOOPBACK_PIN_3B
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/** @brief Symbol specifying master's pin number for SS in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SS_PIN_MASTER LOOPBACK_PIN_4A
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/** @brief Symbol specifying slave's pin number for CSN in nrfx_spim_spis examples. */
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#define SPIM_SPIS_CSN_PIN_SLAVE LOOPBACK_PIN_4B
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/* NRFX_TIMER */
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/** @brief Symbol specifying timer instance to be used in nrfx_timer/timer example. */
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#define TIMER_INST_IDX 0
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/** @brief Symbol specifying timer instance to be used in timer mode (T) in nrfx_timer/counter example. */
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#define TIMER_T_INST_IDX 0
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/** @brief Symbol specifying timer instance to be used in counter mode (C) in nrfx_timer/counter example. */
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#define TIMER_C_INST_IDX 1
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/* NRFX_TWIM_TWIS */
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/** @brief Symbol specifying TWIM instance to be used in nrfx_twim_twis examples. */
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#define TWIM_INST_IDX 0
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/** @brief Symbol specifying TWIS instance to be used in nrfx_twim_twis examples. */
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#define TWIS_INST_IDX 1
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/** @brief Symbol specifying pin number of master SCL to be used in nrfx_twim_twis examples. */
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#define TWIM_TWIS_MASTER_SCL_PIN LOOPBACK_PIN_1A
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/** @brief Symbol specifying pin number of slave SCL to be used in nrfx_twim_twis examples. */
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#define TWIM_TWIS_SLAVE_SCL_PIN LOOPBACK_PIN_1B
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/** @brief Symbol specifying pin number of master SDA to be used in nrfx_twim_twis examples. */
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#define TWIM_TWIS_MASTER_SDA_PIN LOOPBACK_PIN_2A
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/** @brief Symbol specifying pin number of slave SDA to be used in nrfx_twim_twis examples. */
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#define TWIM_TWIS_SLAVE_SDA_PIN LOOPBACK_PIN_2B
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/* NRFX_UARTE */
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/** @brief Symbol specifying UARTE instance to be used in nrfx_uarte examples. */
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#define UARTE_INST_IDX 1
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/** @brief Symbol specifying TX pin number of UARTE to be used in nrfx_uarte examples. */
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#define UARTE_TX_PIN LOOPBACK_PIN_1A
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/** @brief Symbol specifying RX pin number of UARTE to be used in nrfx_uarte examples. */
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#define UARTE_RX_PIN LOOPBACK_PIN_1B
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#endif // NRF52833DK_NRF52833_CONFIG_H__

‎nrfx/samples/common/boards/nrf52840dk_nrf52840_config.h‎

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#ifndef NRF52840DK_NRF52840_CONFIG_H__
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#define NRF52840DK_NRF52840_CONFIG_H__
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#define LOOPBACK_PIN_1A 3
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#define LOOPBACK_PIN_1B 31
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#define LOOPBACK_PIN_2A 4
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#define LOOPBACK_PIN_2B 30
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#define LOOPBACK_PIN_3A 28
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#define LOOPBACK_PIN_3B 29
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#define LOOPBACK_PIN_4A 26
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#define LOOPBACK_PIN_4B 27
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#define LED1_PIN 13
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#define LED2_PIN 14
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#define LED3_PIN 15
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#define LED4_PIN 16
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/* EXAMPLE-SPECIFIC DEFINES: */
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/* NRFX_EGU */
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/** @brief Symbol specifying EGU instance to be used in the nrfx_egu example. */
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#define EGU_INST_IDX 0
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/* NRFX_GPPI */
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/** @brief Symbol specifying TIMER instance to be used in the nrfx_gppi examples. */
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#define GPPI_TIMER_INST_IDX 0
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/** @brief Symbol specifying GPIOTE instance to be used in the nrfx_gppi examples. */
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#define GPPI_GPIOTE_INST_IDX 0
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/** @brief Symbol specifying output pin associated with primary task in the nrfx_gppi examples. */
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#define GPPI_OUTPUT_PIN_PRIMARY LED1_PIN
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/** @brief Symbol specifying output pin associated with fork task in the nrfx_gppi examples. */
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#define GPPI_OUTPUT_PIN_FORK LED2_PIN
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/* NRFX_PWM */
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/** @brief Symbol specifying PWM instance to be used in the nrfx_pwm examples. */
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#define PWM_INST_IDX 0
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/** @brief Symbol specifying a pin connected to LED to be used in the nrfx_pwm examples. */
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#define PWM_LED1_PIN LED1_PIN
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/** @brief Symbol specifying a pin connected to LED to be used in the nrfx_pwm examples. */
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#define PWM_LED2_PIN LED2_PIN
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/** @brief Symbol specifying a pin connected to LED to be used in the nrfx_pwm examples. */
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#define PWM_LED3_PIN LED3_PIN
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/** @brief Symbol specifying a pin connected to LED to be used in the nrfx_pwm examples. */
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#define PWM_LED4_PIN LED4_PIN
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/* NRFX_SAADC */
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/** @brief Symbol specifying GPIOTE instance to be used in the nrfx_saadc examples. */
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#define SAADC_GPIOTE_INST_IDX 0
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/** @brief Symbol specifying timer instance to be used in the nrfx_saadc examples. */
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#define SAADC_TIMER_INST_IDX 0
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/**
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* @brief Symbol specifying the maximum number of SAADC channels that can be used in the
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* nrfx_saadc examples.
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*/
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#define SAADC_MAX_CHANNELS 3
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/** @brief Symbol specifying analog input to be observed by SAADC channel 0 in the nrfx_saadc examples. */
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#define SAADC_CH0_AIN NRFX_ANALOG_EXTERNAL_AIN1
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/** @brief Symbol specifying analog input to be observed by SAADC channel 1 in the nrfx_saadc examples. */
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#define SAADC_CH1_AIN NRFX_ANALOG_EXTERNAL_AIN2
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/** @brief Symbol specifying analog input to be observed by SAADC channel 2 in the nrfx_saadc examples. */
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#define SAADC_CH2_AIN NRFX_ANALOG_EXTERNAL_AIN4
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/** @brief Symbol specifying GPIO pin connected to SAADC channel 0 in the nrfx_saadc examples. */
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#define SAADC_CH0_LOOPBACK_PIN LOOPBACK_PIN_1B
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/** @brief Symbol specifying GPIO pin connected to SAADC channel 1 in the nrfx_saadc examples. */
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#define SAADC_CH1_LOOPBACK_PIN LOOPBACK_PIN_2B
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/** @brief Symbol specifying GPIO pin connected to SAADC channel 2 in the nrfx_saadc examples. */
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#define SAADC_CH2_LOOPBACK_PIN LOOPBACK_PIN_3B
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/* NRFX_SPIM */
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/** @brief Symbol specifying SPIM instance to be used in nrfx_spim examples. */
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#define SPIM_INST_IDX 1
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/* NRFX_SPIM_SPIS */
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/** @brief Symbol specifying SPIM instance to be used in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SPIM_INST_IDX 1
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/** @brief Symbol specifying SPIS instance to be used in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SPIS_INST_IDX 2
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/** @brief Symbol specifying master's pin number for MOSI in nrfx_spim_spis examples. */
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#define SPIM_SPIS_MOSI_PIN_MASTER LOOPBACK_PIN_1A
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/** @brief Symbol specifying slave's pin number for MOSI in nrfx_spim_spis examples. */
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#define SPIM_SPIS_MOSI_PIN_SLAVE LOOPBACK_PIN_1B
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/** @brief Symbol specifying master's pin number for MISO in nrfx_spim_spis examples. */
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#define SPIM_SPIS_MISO_PIN_MASTER LOOPBACK_PIN_2A
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/** @brief Symbol specifying slave's pin number for MISO in nrfx_spim_spis examples. */
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#define SPIM_SPIS_MISO_PIN_SLAVE LOOPBACK_PIN_2B
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/** @brief Symbol specifying master's pin number for SCK in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SCK_PIN_MASTER LOOPBACK_PIN_3A
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/** @brief Symbol specifying slave's pin number for SCK in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SCK_PIN_SLAVE LOOPBACK_PIN_3B
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/** @brief Symbol specifying master's pin number for SS in nrfx_spim_spis examples. */
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#define SPIM_SPIS_SS_PIN_MASTER LOOPBACK_PIN_4A
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/** @brief Symbol specifying slave's pin number for CSN in nrfx_spim_spis examples. */
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#define SPIM_SPIS_CSN_PIN_SLAVE LOOPBACK_PIN_4B
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/* NRFX_TIMER */
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/** @brief Symbol specifying timer instance to be used in nrfx_timer/timer example. */
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#define TIMER_INST_IDX 0
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/** @brief Symbol specifying timer instance to be used in timer mode (T) in nrfx_timer/counter example. */
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#define TIMER_T_INST_IDX 0
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/** @brief Symbol specifying timer instance to be used in counter mode (C) in nrfx_timer/counter example. */
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#define TIMER_C_INST_IDX 1
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/* NRFX_TWIM_TWIS */
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/** @brief Symbol specifying TWIM instance to be used in nrfx_twim_twis examples. */
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#define TWIM_INST_IDX 0
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/** @brief Symbol specifying TWIS instance to be used in nrfx_twim_twis examples. */
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#define TWIS_INST_IDX 1
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/** @brief Symbol specifying pin number of master SCL to be used in nrfx_twim_twis examples. */
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#define TWIM_TWIS_MASTER_SCL_PIN LOOPBACK_PIN_1A
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/** @brief Symbol specifying pin number of slave SCL to be used in nrfx_twim_twis examples. */
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#define TWIM_TWIS_SLAVE_SCL_PIN LOOPBACK_PIN_1B
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/** @brief Symbol specifying pin number of master SDA to be used in nrfx_twim_twis examples. */
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#define TWIM_TWIS_MASTER_SDA_PIN LOOPBACK_PIN_2A
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/** @brief Symbol specifying pin number of slave SDA to be used in nrfx_twim_twis examples. */
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#define TWIM_TWIS_SLAVE_SDA_PIN LOOPBACK_PIN_2B
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/* NRFX_UARTE */
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/** @brief Symbol specifying UARTE instance to be used in nrfx_uarte examples. */
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#define UARTE_INST_IDX 1
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/** @brief Symbol specifying TX pin number of UARTE to be used in nrfx_uarte examples. */
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#define UARTE_TX_PIN LOOPBACK_PIN_1A
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/** @brief Symbol specifying RX pin number of UARTE to be used in nrfx_uarte examples. */
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#define UARTE_RX_PIN LOOPBACK_PIN_1B
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#endif // NRF52840DK_NRF52840_CONFIG_H__

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