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samples: zephyr: boards: nordic: add system_off sample for l09
Based on zephyr one. Signed-off-by: Piotr Kosycarz <[email protected]>
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‎.github/test-spec.yml‎

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- "subsys/event_manager_proxy/**/*"
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- "samples/zephyr/drivers/audio/**/*"
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- "samples/zephyr/drivers/i2c/**/*"
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- "samples/zephyr/boards/nordic/**/*"
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- "samples/ipc/**/*"
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- "samples/event_manager_proxy/**/*"
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- "samples/peripheral/lpuart/**/*"

‎CODEOWNERS‎

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/samples/wifi/provisioning/softap/*.rst @nrfconnect/ncs-cia-doc
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/samples/zigbee/**/*.rst @nrfconnect/ncs-terahertz-doc
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/samples/zephyr/basic/blinky/ @nrfconnect/ncs-low-level-test @nrfconnect/ncs-ll-ursus
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/samples/zephyr/boards/nordic/system_off/ @nrfconnect/ncs-low-level-test
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/samples/zephyr/drivers/audio/dmic/ @nrfconnect/ncs-low-level-test
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/samples/zephyr/drivers/i2c/rtio_loopback/ @nrfconnect/ncs-low-level-test
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/samples/zephyr/sensor/accel_polling/ @nrfconnect/ncs-low-level-test

‎samples/zephyr/boards/nordic/system_off/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(nrf_system_off)
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target_sources(app PRIVATE ${ZEPHYR_BASE}/samples/boards/nordic/system_off/src/main.c)
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if(CONFIG_APP_USE_RETAINED_MEM)
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target_sources(app PRIVATE ${ZEPHYR_BASE}/samples/boards/nordic/system_off/src/retained.c)
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endif()

‎samples/zephyr/boards/nordic/system_off/Kconfig‎

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source "samples/boards/nordic/system_off/Kconfig"

‎samples/zephyr/boards/nordic/system_off/README.txt‎

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This sample extends the same-named Zephyr sample to verify it
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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/boards/nordic/system_off.

‎samples/zephyr/boards/nordic/system_off/boards/nrf54l09pdk_nrf54l09_cpuapp.overlay‎

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/ {
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cpuapp_sram@20023000 {
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compatible = "zephyr,memory-region", "mmio-sram";
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reg = <20023000 DT_SIZE_K(4)>;
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zephyr,memory-region = "RetainedMem";
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status = "okay";
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retainedmem0: retainedmem {
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compatible = "zephyr,retained-ram";
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status = "okay";
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};
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};
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aliases {
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retainedmemdevice = &retainedmem0;
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};
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};
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&cpuapp_sram {
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/* Shrink SRAM size to avoid overlap with retained memory region:
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* 144 - 4 = 140 = 0x23000
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*/
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reg = <0x20000000 DT_SIZE_K(140)>;
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ranges = <0x0 0x20000000 0x23000>;
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};

‎samples/zephyr/boards/nordic/system_off/prj.conf‎

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CONFIG_PM_DEVICE=y
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CONFIG_GPIO=y
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CONFIG_CRC=y
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CONFIG_POWEROFF=y

‎samples/zephyr/boards/nordic/system_off/sample.yaml‎

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sample:
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name: Low Power State Sample for nRF5x
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common:
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tags:
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- power
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- ci_samples_zephyr_boards_nordic_system_off
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timeout: 20
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tests:
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nrf.extended.sample.boards.nrf.system_off:
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integration_platforms:
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- nrf54l09pdk/nrf54l09/cpuapp
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platform_allow:
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- nrf54l09pdk/nrf54l09/cpuapp
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harness: console
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harness_config:
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type: multi_line
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ordered: true
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regex:
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- "system off demo"
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- "Retained data not supported"
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- "Entering system off; press sw0 to restart"
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nrf.extended.sample.boards.nrf.system_off.retained_mem:
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integration_platforms:
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- nrf54l09pdk/nrf54l09/cpuapp
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platform_allow:
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- nrf54l09pdk/nrf54l09/cpuapp
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extra_configs:
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- CONFIG_APP_USE_RETAINED_MEM=y
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harness: console
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harness_config:
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type: multi_line
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ordered: true
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regex:
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- "system off demo"
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- "Retained data: INVALID"
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- "Boot count: 1"
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- "Off count: 0"
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- "Active Ticks:"
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- "Entering system off; press sw0 to restart"
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nrf.extended.sample.boards.nrf.system_off.grtc_wakeup:
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platform_allow:
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- nrf54l09pdk/nrf54l09/cpuapp
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extra_configs:
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- CONFIG_GRTC_WAKEUP_ENABLE=y
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- CONFIG_GPIO_WAKEUP_ENABLE=n
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harness: console
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harness_config:
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type: multi_line
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ordered: true
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regex:
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- "system off demo"
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- "Retained data not supported"
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- "Entering system off; wait 2 seconds to restart"
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- "system off demo"
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- "Retained data not supported"
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- "Entering system off; wait 2 seconds to restart"
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- "system off demo"
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- "Retained data not supported"
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- "Entering system off; wait 2 seconds to restart"
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nrf.extended.sample.boards.nrf.system_off.retained_mem.grtc_wakeup:
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platform_allow:
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- nrf54l09pdk/nrf54l09/cpuapp
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extra_configs:
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- CONFIG_APP_USE_RETAINED_MEM=y
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- CONFIG_GRTC_WAKEUP_ENABLE=y
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- CONFIG_GPIO_WAKEUP_ENABLE=n
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harness: console
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harness_config:
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type: multi_line
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ordered: true
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regex:
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- "system off demo"
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- "Retained data: INVALID"
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- "Boot count: 1"
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- "Off count: 0"
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- "Active Ticks:"
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- "Entering system off; wait 2 seconds to restart"
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- "system off demo"
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- "Retained data: valid"
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- "Boot count: 2"
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- "Off count: 1"
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- "Active Ticks:"
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- "Entering system off; wait 2 seconds to restart"

‎scripts/ci/tags.yaml‎

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files:
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- nrf/samples/zephyr/drivers/i2c/
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- zephyr/samples/drivers/i2c/
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ci_samples_zephyr_boards_nordic_system_off:
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files:
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- nrf/samples/zephyr/boards/nordic/system_off/
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- zephyr/samples/boards/nordic/system_off/

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