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Prepend the text 'cmake_minimum_required(VERSION 3.8.2)' into the application and test build scripts. Modern versions of CMake will spam users with a deprecation warning when the toplevel CMakeLists.txt does not specify a CMake version. This is documented in bug #8355. To resolve this we include a cmake_minimum_required() line into the toplevel build scripts. Additionally, cmake_minimum_required is invoked from within boilerplate.cmake. The highest version will be enforced. This patch allows us to afterwards change CMake policy CMP000 from OLD to NEW which in turn finally rids us of the verbose warning. The extra boilerplate is considered more acceptable than the verbosity of the CMP0000 policy. Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no> |
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src | ||
CMakeLists.txt | ||
prj_tickless.conf | ||
prj.conf | ||
README.rst | ||
sample.yaml |
.. _power-mgr-sample: Intel® Quark™ SE Microcontroller C1000 Power management demo ############################################################ Overview ******** A sample implementation of a power manager app that uses the Zephyr power management infrastructure. This app will cycle through the various power schemes at every call to _sys_soc_suspend() hook function. It will cycle through the following states: 1. CPU Low Power State 2. Deep Sleep - demonstrates invoking suspend/resume handlers of devices to save device states and switching to deep sleep state. 3. No-op - no operation and letting kernel do its idle Requirements ************ This application uses an Intel® Quark™ SE Microcontroller C1000 board for the demo. It demonstrates power operations on the x86 and ARC cores in the board. .. note:: PM support on Intel Quark SE Microcontroller C1000 board requires the latest version of the `boot loader <https://github.com/quark-mcu/qm-bootloader/releases>`_. Building and Running ******************** .. zephyr-app-commands:: :zephyr-app: samples/boards/quark_se_c1000/power_mgr :board: <board> :goals: build :compact: Sample Output ============= x86 core output --------------- .. code-block:: console Power Management Demo on x86 Application main thread Low power state entry! Low power state exit! Total Elapsed From Suspend To Resume = 131073 RTC Cycles Wake up event handler Application main thread Deep sleep entry! Wake from Deep Sleep! Deep sleep exit! Total Elapsed From Suspend To Resume = 291542 RTC Cycles Wake up event handler Application main thread No PM operations done Application main thread Low power state entry! Low power state exit! ... ARC core output --------------- .. code-block:: console Power Management Demo on arc Application main thread Low power state entry! Low power state exit! Total Elapsed From Suspend To Resume = 131073 RTC Cycles Wake up event handler Application main thread No PM operations done Application main thread Low power state entry! Low power state exit! ...