tests: benchmarks: Add PM test for console UART

Test verifies device sleep current with console UART.
It uses string lenght of 33 characters
due to nrf52840 specific issue.

Signed-off-by: Bartosz Miller <[email protected]>

Author: nordic-bami

tests/benchmarks/current_consumption/uart_console/CMakeLists.txt

@@ -0,0 +1,13 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+cmake_minimum_required(VERSION 3.20.0)
+
+find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
+
+project(uart_console)
+
+target_sources(app PRIVATE src/main.c)

tests/benchmarks/current_consumption/uart_console/boards/nrf54h20dk_nrf54h20_cpuapp.overlay

@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+/ {
+	aliases {
+		led = &led0;
+		/delete-property/ led1;
+	};
+};
+
+/delete-node/ &led1;

tests/benchmarks/current_consumption/uart_console/prj.conf

@@ -0,0 +1,19 @@
+CONFIG_PM=y
+CONFIG_PM_DEVICE=y
+CONFIG_PM_DEVICE_RUNTIME=y
+CONFIG_POWEROFF=y
+
+# For nrf54h only, will be ingored for other platforms
+CONFIG_PM_S2RAM=y
+CONFIG_PM_S2RAM_CUSTOM_MARKING=y
+
+CONFIG_SERIAL=y
+CONFIG_LOG=y
+CONFIG_LOG_BACKEND_UART_ASYNC=y
+CONFIG_UART_ASYNC_API=y
+CONFIG_LOG_MODE_DEFERRED=y
+CONFIG_LOG_PRINTK=y
+CONFIG_PRINTK=y
+CONFIG_CONSOLE=y
+CONFIG_UART_CONSOLE=y
+CONFIG_LOG_BACKEND_UART=y

tests/benchmarks/current_consumption/uart_console/src/main.c

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2025 Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+#include <zephyr/kernel.h>
+#include <zephyr/logging/log.h>
+#include <zephyr/pm/device_runtime.h>
+
+#define SLEEP_TIME_MS 1000
+
+static const struct device *const console_dev = DEVICE_DT_GET(DT_CHOSEN(zephyr_console));
+
+int main(void)
+{
+
+#if defined(CONFIG_SOC_NRF52840)
+	/* [246] System: Intermittent extra current consumption when going to sleep */
+	*(volatile uint32_t *)0x4007AC84ul = 0x00000002ul;
+#endif
+
+	pm_device_runtime_enable(console_dev);
+
+	while (1) {
+		printk("33 characters long string !!!!!!\n");
+		k_sleep(K_MSEC(SLEEP_TIME_MS));
+	}
+
+	return 0;
+}

tests/benchmarks/current_consumption/uart_console/sysbuild.cmake

@@ -0,0 +1,19 @@
+#
+# Copyright (c) 2025 Nordic Semiconductor ASA
+#
+# SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+#
+
+if(SB_CONFIG_SOC_NRF54H20)
+  # Add remote project
+  ExternalZephyrProject_Add(
+      APPLICATION remote
+      SOURCE_DIR ${ZEPHYR_NRF_MODULE_DIR}/tests/benchmarks/power_consumption/common/remote_sleep_forever
+      BOARD ${SB_CONFIG_BOARD}/${SB_CONFIG_SOC}/cpurad
+      BOARD_REVISION ${BOARD_REVISION}
+    )
+  # Add a dependency so that the remote image will be built and flashed first
+  add_dependencies(uart_console remote)
+  # Add dependency so that the remote image is flashed first.
+  sysbuild_add_dependencies(FLASH uart_console remote)
+endif()

tests/benchmarks/current_consumption/uart_console/testcase.yaml

@@ -0,0 +1,25 @@
+common:
+  sysbuild: true
+
+tests:
+  benchmarks.current_consumption.uart_console:
+    tags:
+      - ci_build
+      - ci_tests_benchmarks_multicore
+      - uart
+      - ppk_power_measure
+    platform_allow:
+      - nrf52840dk/nrf52840
+      - nrf5340dk/nrf5340/cpuapp
+      - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54h20dk/nrf54h20/cpuapp
+    integration_platforms:
+      - nrf52840dk/nrf52840
+      - nrf5340dk/nrf5340/cpuapp
+      - nrf54l15dk/nrf54l15/cpuapp
+      - nrf54h20dk/nrf54h20/cpuapp
+    harness: pytest
+    harness_config:
+      fixture: ppk_power_measure
+      pytest_root:
+        - "${CUSTOM_ROOT_TEST_DIR}/test_measure_power_consumption.py::test_measure_and_data_dump_power_consumption_uarte"