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[nrf fromtree] tests: boards: nrf: add i2c driver test with TWIS slave
Test defines a lopback between i2c driver master and nrfx TWIS slave to verify their functional correctness. Signed-off-by: Nikodem Kastelik <[email protected]> (cherry picked from commit 01ea0f2)
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‎tests/boards/nrf/i2c/i2c_slave/CMakeLists.txt

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# SPDX-License-Identifier: Apache-2.0
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cmake_minimum_required(VERSION 3.20.0)
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find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
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project(i2c_slave)
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FILE(GLOB app_sources src/*.c)
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target_sources(app PRIVATE ${app_sources})

‎tests/boards/nrf/i2c/i2c_slave/boards/nrf52840dk_nrf52840.conf

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CONFIG_NRFX_TWIS1=y

‎tests/boards/nrf/i2c/i2c_slave/boards/nrf52840dk_nrf52840.overlay

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/ {
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aliases {
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i2c-slave = &i2c1;
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};
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};
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&pinctrl {
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i2c0_default_alt: i2c0_default_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 0, 4)>,
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<NRF_PSEL(TWIM_SCL, 0, 3)>;
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};
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};
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i2c0_sleep_alt: i2c0_sleep_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 0, 4)>,
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<NRF_PSEL(TWIM_SCL, 0, 3)>;
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low-power-enable;
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};
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};
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i2c1_default_alt: i2c1_default_alt {
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group1 {
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/* Temporary workaround as it is currently not possible
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* to configure pins for TWIS with pinctrl. */
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psels = <NRF_PSEL(TWIM_SDA, 0, 30)>,
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<NRF_PSEL(TWIM_SCL, 0, 31)>;
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bias-pull-up;
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};
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};
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i2c1_sleep_alt: i2c1_sleep_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 0, 30)>,
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<NRF_PSEL(TWIM_SCL, 0, 31)>;
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low-power-enable;
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};
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};
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};
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&i2c0 {
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compatible = "nordic,nrf-twim";
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status = "okay";
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pinctrl-0 = <&i2c0_default_alt>;
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pinctrl-1 = <&i2c0_sleep_alt>;
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pinctrl-names = "default", "sleep";
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sensor: sensor@54 {
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reg = <0x54>;
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};
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};
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&i2c1 {
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compatible = "nordic,nrf-twis";
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status = "okay";
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pinctrl-0 = <&i2c1_default_alt>;
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pinctrl-1 = <&i2c1_sleep_alt>;
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pinctrl-names = "default", "sleep";
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};

‎tests/boards/nrf/i2c/i2c_slave/boards/nrf5340dk_nrf5340_cpuapp.conf

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CONFIG_NRFX_TWIS2=y

‎tests/boards/nrf/i2c/i2c_slave/boards/nrf5340dk_nrf5340_cpuapp.overlay

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/ {
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aliases {
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i2c-slave = &i2c2;
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};
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};
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&pinctrl {
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i2c1_default_alt: i2c1_default_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 0, 4)>,
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<NRF_PSEL(TWIM_SCL, 0, 5)>;
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};
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};
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i2c1_sleep_alt: i2c1_sleep_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 0, 4)>,
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<NRF_PSEL(TWIM_SCL, 0, 5)>;
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low-power-enable;
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};
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};
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i2c2_default_alt: i2c2_default_alt {
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group1 {
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/* Temporary workaround as it is currently not possible
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* to configure pins for TWIS with pinctrl. */
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psels = <NRF_PSEL(TWIM_SDA, 0, 26)>,
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<NRF_PSEL(TWIM_SCL, 0, 25)>;
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bias-pull-up;
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};
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};
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i2c2_sleep_alt: i2c2_sleep_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 0, 26)>,
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<NRF_PSEL(TWIM_SCL, 0, 25)>;
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low-power-enable;
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};
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};
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};
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&i2c1 {
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compatible = "nordic,nrf-twim";
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status = "okay";
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pinctrl-0 = <&i2c1_default_alt>;
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pinctrl-1 = <&i2c1_sleep_alt>;
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pinctrl-names = "default", "sleep";
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sensor: sensor@54 {
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reg = <0x54>;
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};
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};
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&i2c2 {
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compatible = "nordic,nrf-twis";
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pinctrl-0 = <&i2c2_default_alt>;
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pinctrl-1 = <&i2c2_sleep_alt>;
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pinctrl-names = "default", "sleep";
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};

‎tests/boards/nrf/i2c/i2c_slave/boards/nrf54h20dk_nrf54h20_cpuapp.conf

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CONFIG_NRFX_TWIS131=y

‎tests/boards/nrf/i2c/i2c_slave/boards/nrf54h20dk_nrf54h20_cpuapp.overlay

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/ {
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aliases {
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i2c-slave = &i2c131;
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};
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};
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&pinctrl {
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i2c130_default_alt: i2c130_default_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 2, 8)>,
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<NRF_PSEL(TWIM_SCL, 1, 2)>;
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};
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};
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i2c130_sleep_alt: i2c130_sleep_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 2, 8)>,
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<NRF_PSEL(TWIM_SCL, 1, 2)>;
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low-power-enable;
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};
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};
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i2c131_default_alt: i2c131_default_alt {
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group1 {
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/* Temporary workaround as it is currently not possible
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* to configure pins for TWIS with pinctrl. */
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psels = <NRF_PSEL(TWIM_SDA, 2, 9)>,
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<NRF_PSEL(TWIM_SCL, 1, 3)>;
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bias-pull-up;
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};
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};
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i2c131_sleep_alt: i2c131_sleep_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 2, 9)>,
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<NRF_PSEL(TWIM_SCL, 1, 3)>;
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low-power-enable;
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};
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};
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};
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&i2c130 {
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compatible = "nordic,nrf-twim";
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status = "okay";
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clock-frequency = <I2C_BITRATE_STANDARD>;
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pinctrl-0 = <&i2c130_default_alt>;
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pinctrl-1 = <&i2c130_sleep_alt>;
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pinctrl-names = "default", "sleep";
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memory-regions = <&cpuapp_dma_region>;
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sensor: sensor@54 {
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reg = <0x54>;
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};
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};
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&i2c131 {
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compatible = "nordic,nrf-twis";
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status = "okay";
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clock-frequency = <I2C_BITRATE_STANDARD>;
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pinctrl-0 = <&i2c131_default_alt>;
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pinctrl-1 = <&i2c131_sleep_alt>;
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pinctrl-names = "default", "sleep";
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memory-regions = <&cpuapp_dma_region>;
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};

‎tests/boards/nrf/i2c/i2c_slave/boards/nrf54l15pdk_nrf54l15_cpuapp.conf

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CONFIG_NRFX_TWIS22=y

‎tests/boards/nrf/i2c/i2c_slave/boards/nrf54l15pdk_nrf54l15_cpuapp.overlay

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/ {
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aliases {
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i2c-slave = &i2c22;
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};
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};
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&pinctrl {
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i2c21_default_alt: i2c21_default_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 1, 8)>,
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<NRF_PSEL(TWIM_SCL, 1, 12)>;
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};
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};
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i2c21_sleep_alt: i2c21_sleep_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 1, 8)>,
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<NRF_PSEL(TWIM_SCL, 1, 12)>;
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low-power-enable;
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};
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};
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i2c22_default_alt: i2c22_default_alt {
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group1 {
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/* Temporary workaround as it is currently not possible
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* to configure pins for TWIS with pinctrl. */
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psels = <NRF_PSEL(TWIM_SDA, 1, 9)>,
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<NRF_PSEL(TWIM_SCL, 1, 13)>;
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bias-pull-up;
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};
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};
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i2c22_sleep_alt: i2c22_sleep_alt {
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group1 {
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psels = <NRF_PSEL(TWIM_SDA, 1, 9)>,
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<NRF_PSEL(TWIM_SCL, 1, 13)>;
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low-power-enable;
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};
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};
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};
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&i2c21 {
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compatible = "nordic,nrf-twim";
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status = "okay";
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pinctrl-0 = <&i2c21_default_alt>;
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pinctrl-1 = <&i2c21_sleep_alt>;
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pinctrl-names = "default", "sleep";
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sensor: sensor@54 {
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reg = <0x54>;
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};
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};
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&i2c22 {
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compatible = "nordic,nrf-twis";
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status = "okay";
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pinctrl-0 = <&i2c22_default_alt>;
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pinctrl-1 = <&i2c22_sleep_alt>;
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pinctrl-names = "default", "sleep";
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};

‎tests/boards/nrf/i2c/i2c_slave/prj.conf

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CONFIG_I2C=y
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CONFIG_ZTEST=y

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