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samples: zephyr: drivers: spi_bitbang: Run on 54* devices
Add overlys required to run spi_bitbang sample on: - nrf54h20dk/nrf54h20/cpuapp; - nrf54l15dk/nrf54l15/cpuapp; - [email protected]/nrf54lm20a/cpuapp; - [email protected]/nrf54lm20a/cpuapp; - nrf54lv10apdk/nrf54lv10a/cpuapp. Signed-off-by: Sebastian Głąb <[email protected]>
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‎CODEOWNERS‎

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/samples/zephyr/drivers/i2c/rtio_loopback/ @nrfconnect/ncs-low-level-test
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/samples/zephyr/drivers/jesd216/ @nrfconnect/ncs-low-level-test
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/samples/zephyr/drivers/mbox/ @nrfconnect/ncs-low-level-test
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/samples/zephyr/drivers/spi_bitbang/ @nrfconnect/ncs-low-level-test
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/samples/zephyr/drivers/spi_flash/ @nrfconnect/ncs-low-level-test
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/samples/zephyr/drivers/watchdog/ @nrfconnect/ncs-low-level-test
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/samples/zephyr/sensor/accel_polling/ @nrfconnect/ncs-low-level-test

‎samples/zephyr/drivers/spi_bitbang/CMakeLists.txt‎

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#
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# Copyright (c) 2025 Nordic Semiconductor ASA
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#
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# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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#
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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(spi_bitbang)
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FILE(GLOB app_sources ${ZEPHYR_BASE}/samples/drivers/spi_bitbang/src/*.c)
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target_sources(app PRIVATE ${app_sources})

‎samples/zephyr/drivers/spi_bitbang/README.txt‎

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This sample extends the same-named Zephyr sample to verify it with Nordic development kits.
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Source code and basic configuration files can be found in the corresponding folder structure in zephyr/samples/drivers/spi_bitbang.

‎samples/zephyr/drivers/spi_bitbang/boards/nrf54h20dk_nrf54h20_cpuapp.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/ {
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spibb0: spibb0 {
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compatible = "zephyr,spi-bitbang";
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status="okay";
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#address-cells = <1>;
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#size-cells = <0>;
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clk-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>;
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mosi-gpios = <&gpio0 6 GPIO_ACTIVE_HIGH>;
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miso-gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
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cs-gpios = <&gpio0 8 GPIO_ACTIVE_LOW>;
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};
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};

‎samples/zephyr/drivers/spi_bitbang/boards/nrf54l15dk_nrf54l15_cpuapp.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/ {
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spibb0: spibb0 {
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compatible = "zephyr,spi-bitbang";
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status="okay";
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#address-cells = <1>;
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#size-cells = <0>;
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clk-gpios = <&gpio1 13 GPIO_ACTIVE_HIGH>;
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mosi-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
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miso-gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
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cs-gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
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};
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};

‎samples/zephyr/drivers/spi_bitbang/boards/nrf54lm20apdk_nrf54lm20a_cpuapp.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/ {
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spibb0: spibb0 {
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compatible = "zephyr,spi-bitbang";
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status="okay";
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#address-cells = <1>;
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#size-cells = <0>;
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clk-gpios = <&gpio1 18 GPIO_ACTIVE_HIGH>;
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mosi-gpios = <&gpio1 15 GPIO_ACTIVE_HIGH>;
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miso-gpios = <&gpio1 16 GPIO_ACTIVE_HIGH>;
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cs-gpios = <&gpio1 30 GPIO_ACTIVE_LOW>;
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};
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};

‎samples/zephyr/drivers/spi_bitbang/boards/nrf54lm20apdk_nrf54lm20a_cpuapp_0_0_0.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/ {
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spibb0: spibb0 {
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compatible = "zephyr,spi-bitbang";
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status="okay";
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#address-cells = <1>;
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#size-cells = <0>;
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clk-gpios = <&gpio1 9 GPIO_ACTIVE_HIGH>;
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mosi-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
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miso-gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
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cs-gpios = <&gpio1 1 GPIO_ACTIVE_LOW>;
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};
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};

‎samples/zephyr/drivers/spi_bitbang/boards/nrf54lv10apdk_nrf54lv10a_cpuapp.overlay‎

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/*
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* Copyright (c) 2025 Nordic Semiconductor ASA
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*
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* SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
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*/
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/ {
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spibb0: spibb0 {
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compatible = "zephyr,spi-bitbang";
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status="okay";
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#address-cells = <1>;
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#size-cells = <0>;
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clk-gpios = <&gpio1 0 GPIO_ACTIVE_HIGH>;
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mosi-gpios = <&gpio1 10 GPIO_ACTIVE_HIGH>;
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miso-gpios = <&gpio1 11 GPIO_ACTIVE_HIGH>;
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cs-gpios = <&gpio1 2 GPIO_ACTIVE_LOW>;
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};
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};

‎samples/zephyr/drivers/spi_bitbang/prj.conf‎

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CONFIG_STDOUT_CONSOLE=y
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CONFIG_SPI=y
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CONFIG_SPI_BITBANG=y
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CONFIG_LOG=y

‎samples/zephyr/drivers/spi_bitbang/sample.yaml‎

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sample:
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name: SPI Bitbang Driver Sample
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tests:
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nrf.extended.sample.drivers.spi.bitbang:
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tags:
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- drivers
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- spi
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- gpio
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- ci_samples_zephyr_drivers_spi_bitbang
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platform_allow:
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- nrf54h20dk/nrf54h20/cpuapp
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- nrf54l15dk/nrf54l15/cpuapp
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- [email protected]/nrf54lm20a/cpuapp
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- [email protected]/nrf54lm20a/cpuapp
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- nrf54lv10apdk/nrf54lv10a/cpuapp
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harness: console
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harness_config:
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fixture: gpio_loopback
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type: multi_line
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ordered: true
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regex:
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- "basic_write_9bit_words; ret: 0"
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- "wrote 0101 00ff 00a5 0000 0102"
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- "9bit_loopback_partial; ret: 0"
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- "tx [(]i[)] : 0101 0102"
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- "tx [(]ii[)] : 0003 0004 0105"
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- "rx [(]ii[)] : 0003 0004 0105"
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- "8bit_loopback_partial; ret: 0"
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- "tx [(]i[)] : 01 02 03 04 05"
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- "rx [(]i[)] : 01 02 03 04 05"

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