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tests: benchmarks: multicore: Check PWM signal in S2RAM with PWM
Add idle_pwm_loopback that checks if PWM signal is present - count rising/falling edges using input GPIO. Signed-off-by: Sebastian Głąb <[email protected]>
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‎tests/benchmarks/multicore/idle_pwm_loopback/CMakeLists.txt‎

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#
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# Copyright (c) 2024 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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if(NOT SYSBUILD)
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message(FATAL_ERROR
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" This is a multi-image application that should be built using sysbuild.\n"
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" Add --sysbuild argument to west build command to prepare all the images.")
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endif()
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project(idle_pwm_loopback)
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target_sources(app PRIVATE src/main.c)

‎tests/benchmarks/multicore/idle_pwm_loopback/Kconfig‎

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#
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# Copyright (c) 2024 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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config TEST_SLEEP_DURATION_MS
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int "Amount of time (in miliseconds) the core is sleeping"
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default 1000
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help
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Set sleep duration to TEST_SLEEP_DURATION_MS miliseconds.
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Based on the value of 'min-residency-us' specified for each power state defined in the DTS,
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core enters the lowest possible power state.
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source "Kconfig.zephyr"

‎tests/benchmarks/multicore/idle_pwm_loopback/Kconfig.sysbuild‎

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#
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# Copyright (c) 2024 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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source "${ZEPHYR_BASE}/share/sysbuild/Kconfig"
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config REMOTE_BOARD
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string "The board used for remote target"

‎tests/benchmarks/multicore/idle_pwm_loopback/boards/nrf54h20dk_nrf54h20_cpuapp.overlay‎

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/*
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* Copyright (c) 2024 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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#include <zephyr/dt-bindings/pwm/pwm.h>
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#include <zephyr/dt-bindings/gpio/nordic-nrf-gpio.h>
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/* Test requires wire connection between:
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* - PWM130 OUT[0] at P0.00
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* - GPIO input at P0.01
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*/
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/ {
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pwm_to_gpio_loopback: pwm_to_gpio_loopback {
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compatible = "test-pwm-to-gpio-loopback";
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pwms = <&pwm130 0 PWM_USEC(200) PWM_POLARITY_NORMAL>;
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gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
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};
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};
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&pinctrl {
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/omit-if-no-ref/ pwm130_default: pwm130_default {
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group1 {
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psels = <NRF_PSEL(PWM_OUT0, 0, 0)>;
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};
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};
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/omit-if-no-ref/ pwm130_sleep: pwm130_sleep {
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group1 {
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psels = <NRF_PSEL(PWM_OUT0, 0, 0)>;
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low-power-enable;
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};
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};
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};
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&gpio0 {
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status = "okay";
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};
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&gpiote130 {
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status = "okay";
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owned-channels = <0>;
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};
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&pwm130 {
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status = "okay";
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pinctrl-0 = <&pwm130_default>;
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pinctrl-1 = <&pwm130_sleep>;
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pinctrl-names = "default", "sleep";
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memory-regions = <&cpuapp_dma_region>;
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};

‎tests/benchmarks/multicore/idle_pwm_loopback/boards/nrf54h20dk_nrf54h20_cpuapp_fast_p7_1.overlay‎

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/*
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* Copyright (c) 2024 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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#include <zephyr/dt-bindings/pwm/pwm.h>
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#include <zephyr/dt-bindings/gpio/nordic-nrf-gpio.h>
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/* Test requires wire connection between:
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* - PWM120 OUT[1] at P7.01
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* - GPIO input at P1.05
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*/
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/ {
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pwm_to_gpio_loopback: pwm_to_gpio_loopback {
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compatible = "test-pwm-to-gpio-loopback";
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pwms = <&pwm120 1 PWM_USEC(200) PWM_POLARITY_NORMAL>;
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gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
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};
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};
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&pinctrl {
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/omit-if-no-ref/ pwm120_default: pwm120_default {
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group1 {
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psels = <NRF_PSEL(PWM_OUT1, 7, 1)>;
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};
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};
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/omit-if-no-ref/ pwm120_sleep: pwm120_sleep {
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group1 {
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psels = <NRF_PSEL(PWM_OUT1, 7, 1)>;
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low-power-enable;
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};
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};
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};
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&gpio1 {
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status = "okay";
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};
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&gpiote130 {
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status = "okay";
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owned-channels = <0>;
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};
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&pwm120 {
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status = "okay";
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pinctrl-0 = <&pwm120_default>;
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pinctrl-1 = <&pwm120_sleep>;
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pinctrl-names = "default", "sleep";
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memory-regions = <&dma_fast_region>;
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};
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&dma_fast_region {
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status = "okay";
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};
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&pwm130 {
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status = "disabled";
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};

‎tests/benchmarks/multicore/idle_pwm_loopback/dts/bindings/test-pwm-to-gpio-loopback.yaml‎

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#
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# Copyright (c) 2024 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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description: |
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This binding provides resources required to build and run the
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tests/drivers/pwm/pwm_to_gpio_loopback test in Zephyr.
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compatible: "test-pwm-to-gpio-loopback"
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properties:
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pwms:
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type: phandle-array
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required: true
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description: |
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PWM pin that will be used for generating a pulse-width modulated signal.
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gpios:
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type: phandle-array
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required: true
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description: |
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GPIO pin will be used for capturing the generated signal. The PWM and GPIO
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pins must be physically connected to each other.

‎tests/benchmarks/multicore/idle_pwm_loopback/prj.conf‎

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CONFIG_PRINTK=y
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CONFIG_LOG=y
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CONFIG_ASSERT=y
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CONFIG_PWM=y
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CONFIG_GPIO=y
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CONFIG_NRF_REGTOOL_VERBOSITY=1

‎tests/benchmarks/multicore/idle_pwm_loopback/prj_s2ram.conf‎

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CONFIG_PM=y
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CONFIG_PM_S2RAM=y
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CONFIG_PM_S2RAM_CUSTOM_MARKING=y
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CONFIG_POWEROFF=y
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CONFIG_SOC_NRF54H20_NO_MRAM_LATENCY=n
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CONFIG_PM_DEVICE=y
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CONFIG_PM_DEVICE_RUNTIME=y
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CONFIG_BOOT_BANNER=n
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CONFIG_NCS_BOOT_BANNER=n
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CONFIG_PRINTK=n
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CONFIG_LOG=n
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CONFIG_CONSOLE=n
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CONFIG_UART_CONSOLE=n
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CONFIG_SERIAL=n
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CONFIG_ASSERT=y
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CONFIG_PWM=y
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CONFIG_GPIO=y

‎tests/benchmarks/multicore/idle_pwm_loopback/remote/CMakeLists.txt‎

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#
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# Copyright (c) 2024 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(remote)
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target_sources(app PRIVATE ../src/main.c)

‎tests/benchmarks/multicore/idle_pwm_loopback/remote/Kconfig‎

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#
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# Copyright (c) 2024 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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config TEST_SLEEP_DURATION_MS
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int "Amount of time (in miliseconds) the core is sleeping"
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default 1000
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help
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Set sleep duration to TEST_SLEEP_DURATION_MS miliseconds.
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Based on the value of 'min-residency-us' specified for each power state defined in the DTS,
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core enters the lowest possible power state.
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source "Kconfig.zephyr"

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