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The README was referring to a specific version of the boot loader. Since the boot loader version is expected to change in future and Zephyr code would also correspond to that version, it is better to not mention any specific version. Instead, the requirement is to use the latest version of the boot loader. Change-Id: I04082eec4af16426f6456702c521e8f61bd4e0df Signed-off-by: Ramesh Thomas <ramesh.thomas@intel.com> |
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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 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
********************
.. code-block:: console
make BOARD=<board>
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!
...