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nrfx: samples: add support for nRF54L15
- Added support for the nRF54L15 DK to all existing samples except for the RNG sample. - Added sample for the CRACEN driver. - Divided existing loopback definitions in `common/nrfx_example.h` into individual header files for each board in `common/boards`. - Moved pin definitions from individual samples to board header files in `common/boards`. Signed-off-by: Michał Bainczyk <[email protected]>
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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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## [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/README.md‎

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## Introduction and configuration
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This repository contains sample applications showing the usage examples of the [nrfx drivers] within [Zephyr RTOS].
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## Installation
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1. Set up Zephyr by following [Getting started] guide.
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> Always activate the virtual environment with previously installed `west` and set up `Zephyr`.
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## Requirements
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Samples support the following development kits:
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| **Hardware platforms** | **Board name** | **Build target** |
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| ------------------------ | ------------------------- | ------------------------------- |
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| nR52 DK | nrf52dk_nrf52832 | `nrf52dk_nrf52832` |
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| nRF52833 DK | nrf52833dk_nrf52833 | `nrf52833dk_nrf52833` |
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| nRF52840 DK | nrf52840dk_nrf52840 | `nrf52840dk_nrf52840` |
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| nRF5340 DK | nrf5340dk_nrf5340 | `nrf5340dk_nrf5340_cpuapp` |
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| nRF5340 DK | nrf5340dk_nrf5340 | `nrf5340dk_nrf5340_cpunet` |
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| nRF54L15 DK | nrf54l15dk_nrf54l15 | `nrf54l15dk_nrf54l15_cpuapp` |
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| nRF9160 DK | nrf9160dk_nrf9160 | `nrf9160dk_nrf9160` |
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## Wiring
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Samples use a unified system of pins assignment.
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Refer to their definitnions in `common/nrfx_example.h`.
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By default, pins are connected through different boards as follows:
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| **Board name** | **1A** | **1B** | **2A** | **2B** | **3A** | **3B** | **4A** | **4B** |
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|--------------------- | ------ | -------- | ------- | ------ | ------ | ------ | ------ | ------ |
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| nrf52dk_nrf52832 | P0.03 | P0.31 | P0.04 | P0.30 | P0.28 | P0.29 | P0.26 | P0.27 |
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| nrf52833dk_nrf52833 | P0.03 | P0.31 | P0.04 | P0.30 | P0.28 | P0.29 | P0.26 | P0.27 |
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| nrf52840dk_nrf52840 | P0.03 | P0.31 | P0.04 | P0.30 | P0.28 | P0.29 | P0.26 | P0.27 |
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| nrf5340dk_nrf5340 | P0.04 | P0.26 | P0.05 | P0.25 | P0.06 | P0.07 | P1.02 | P1.03 |
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| nrf54l15dk_nrf54l15 | P1.13 | P1.12 | P1.11 | P1.10 | P1.09 | P1.08 | P2.06 | P1.04 |
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| nrf9160dk_nrf9160 | P0.14 | P0.19 | P0.15 | P0.18 | P0.16 | P0.17 | P0.30 | P0.31 |
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> If a specific sample is using some loopback pins, their corresponding pins should be connected together.
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> For example, `LOOPBACK_PIN_1A` should be connected with `LOOPBACK_PIN_1B` and `LOOPBACK_PIN_2A` with `LOOPBACK_PIN_2B`.
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@anchor building_and_running
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## Building and running
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1. Change the directory in `zephyrproject-rtos` repository to one of the samples:
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```
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cd modules/hal/nordic/nrfx/samples/src/nrfx_timer/timer/
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```
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2. Build the sample with the `west` on one of the supported boards.
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```
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west build -b <BOARD>
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```
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3. Flash the application on the connected target.
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```
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west flash
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```
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4. Configure a serial monitor to recognize the port connection with the following parameters:
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- 115200 baud rate,
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- 8 data bits,
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- no parity bit,
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- 1 stop bit,
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- RTS/CTS flow control.
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## Directories
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```
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.
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├── common # Various boards and examples common files
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├── doc # Project documentation files
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└── src # Examples base
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├── nrfx_cracen # Examples related to CRACEN peripheral
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├── nrfx_egu # Examples related to EGU peripheral
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├── nrfx_gppi # Examples related to GPPI helper
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├── nrfx_pwm # Examples related to PWM peripheral
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├── nrfx_rng # Examples related to RNG peripheral
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.
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.
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.
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```
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@cond DOXYGEN_EXCLUDE
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## Generating documentation
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Documentation for the samples is available in the `doc/html` folder.
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For more details refer to [Documentation].
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@endcond
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[//]: #
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[nrfx drivers]: https://infocenter.nordicsemi.com/topic/struct_drivers/struct/nrfx_latest.html
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[Zephyr RTOS]: https://docs.zephyrproject.org/latest/index.html
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[Getting started]: https://docs.zephyrproject.org/latest/develop/getting_started/index.html
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[Documentation]: doc/README.md
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‎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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/** @brief Symbol specifying analog input associated with analog pin A0 on the Development Kit. */
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#define ANALOG_INPUT_A0 1
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/** @brief Symbol specifying analog input associated with analog pin A1 on the Development Kit. */
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#define ANALOG_INPUT_A1 2
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/** @brief Symbol specifying analog input associated with analog pin A2 on the Development Kit. */
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#define ANALOG_INPUT_A2 4
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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 ANALOG_INPUT_TO_SAADC_AIN(ANALOG_INPUT_A0)
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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 ANALOG_INPUT_TO_SAADC_AIN(ANALOG_INPUT_A1)
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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 ANALOG_INPUT_TO_SAADC_AIN(ANALOG_INPUT_A2)
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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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/** @brief Symbol specifying analog input associated with analog pin A0 on the Development Kit. */
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#define ANALOG_INPUT_A0 1
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/** @brief Symbol specifying analog input associated with analog pin A1 on the Development Kit. */
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#define ANALOG_INPUT_A1 2
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/** @brief Symbol specifying analog input associated with analog pin A2 on the Development Kit. */
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#define ANALOG_INPUT_A2 4
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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 ANALOG_INPUT_TO_SAADC_AIN(ANALOG_INPUT_A0)
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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 ANALOG_INPUT_TO_SAADC_AIN(ANALOG_INPUT_A1)
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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 ANALOG_INPUT_TO_SAADC_AIN(ANALOG_INPUT_A2)
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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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