NCSDK-32785: Extend current consumption testing with changing LFCLK

Add the current measurement for LFRC SYNTH test case

Signed-off-by: Piotr Krzyzanowski <[email protected]>

Author: nordic-pikr

scripts/ci/tags.yaml

@@ -1157,6 +1157,7 @@ ci_tests_benchmarks_current_consumption:
     - nrf/tests/benchmarks/power_consumption/
     - nrfxlib/nfc/
     - zephyr/boards/nordic/
+    - zephyr/drivers/clock_control/
     - zephyr/drivers/gpio/
     - zephyr/drivers/serial/
     - zephyr/dts/common/nordic/

tests/benchmarks/current_consumption/lfrc_idle/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(lfrc_idle)
+
+target_sources(app PRIVATE src/main.c)

tests/benchmarks/current_consumption/lfrc_idle/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/lfrc_idle/prj.conf

@@ -0,0 +1,15 @@
+CONFIG_GPIO=y
+CONFIG_CLOCK_CONTROL=y
+
+CONFIG_PM=y
+CONFIG_PM_S2RAM=y
+CONFIG_PM_S2RAM_CUSTOM_MARKING=y
+CONFIG_PM_DEVICE=y
+CONFIG_PM_DEVICE_RUNTIME=y
+
+CONFIG_ASSERT=y
+
+CONFIG_LOG=n
+CONFIG_CONSOLE=n
+CONFIG_UART_CONSOLE=n
+CONFIG_SERIAL=n

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

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2025, Nordic Semiconductor ASA
+ *
+ * SPDX-License-Identifier: LicenseRef-Nordic-5-Clause
+ */
+
+#include <zephyr/devicetree/clocks.h>
+#include <zephyr/drivers/clock_control/nrf_clock_control.h>
+#include <zephyr/drivers/gpio.h>
+
+const struct gpio_dt_spec led = GPIO_DT_SPEC_GET(DT_ALIAS(led), gpios);
+const struct device *lfclk_dev = DEVICE_DT_GET(DT_NODELABEL(lfclk));
+
+const struct nrf_clock_spec lfclk_lfrc_mode = {
+	.frequency = 32768,
+	.accuracy = 0,
+	.precision = NRF_CLOCK_CONTROL_PRECISION_DEFAULT,
+};
+
+const struct nrf_clock_spec lfclk_synth_mode = {
+	.frequency = 32768,
+	.accuracy = 30,
+	.precision = NRF_CLOCK_CONTROL_PRECISION_DEFAULT,
+};
+
+int main(void)
+{
+	int ret, res;
+	struct nrf_clock_spec *clk_spec;
+	struct onoff_client cli;
+	uint32_t counter = 0;
+
+	__ASSERT(gpio_is_ready_dt(&led), "GPIO Device not ready");
+	__ASSERT(gpio_pin_configure_dt(&led, GPIO_OUTPUT_ACTIVE) == 0,
+		 "Could not configure led GPIO");
+
+	while (1) {
+		clk_spec = (struct nrf_clock_spec *)(counter++ % 2 ? &lfclk_lfrc_mode
+								   : &lfclk_synth_mode);
+		sys_notify_init_spinwait(&cli.notify);
+		ret = nrf_clock_control_request(lfclk_dev, clk_spec, &cli);
+		__ASSERT(ret >= 0 && ret <= 2, "Clock control request failed");
+		do {
+			ret = sys_notify_fetch_result(&cli.notify, &res);
+		} while (ret == -EAGAIN);
+		__ASSERT(ret == 0, "return code: %d", ret);
+		__ASSERT(res == 0, "response: %d", res);
+		k_msleep(1000);
+		gpio_pin_toggle_dt(&led);
+		ret = nrf_clock_control_release(lfclk_dev, clk_spec);
+		__ASSERT(ret == ONOFF_STATE_ON, "return code: %d", ret);
+	}
+
+	return 0;
+}

tests/benchmarks/current_consumption/lfrc_idle/sysbuild.cmake

@@ -0,0 +1,15 @@
+#
+# 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_sleep_forever
+    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}
+  )
+endif()

tests/benchmarks/current_consumption/lfrc_idle/testcase.yaml

@@ -0,0 +1,17 @@
+common:
+  sysbuild: true
+  tags:
+    - ci_tests_benchmarks_current_consumption
+    - ppk_power_measure
+    - clock_control
+tests:
+  benchmarks.current_consumption.lfclk_idle:
+    platform_allow:
+      - nrf54h20dk/nrf54h20/cpuapp
+    integration_platforms:
+      - 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_lfclk_source_change"