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samples: boards: stm32: exit Poweroff using wkup pins & gpios

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This sample demonstrates how gpio pins can be used to power on
the system after a Poweroff, just like a reset pin.
The user only needs to add the STM32_GPIO_WKUP flag to the gpio pin
in "gpios" property of a DT device such a button or a sensor.
The samples Powers off the system after a delay then the user can power it
on with the user button that has the STM32_GPIO_WKUP flag in DT.
Only works on STM32 boards that support Zephyr POWEROFF
(U5, WL, WB, & L4 SoC series), & also have a user button whose GPIO pin
is associated with a wake-up pin (see PWR node in SoC dtsi file).

Signed-off-by: Abderrahmane Jarmouni <abderrahmane.jarmouni-ext@st.com>
This commit is contained in:
Abderrahmane Jarmouni 2024-05-13 15:05:49 +02:00 • committed by David Leach
commit 80180188b1
9 changed files with 194 additions and 0 deletions
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samples/boards/stm32/power_mgmt/wkup_pins/prj.conf Normal file
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CONFIG_POWEROFF=y
CONFIG_STM32_WKUP_PINS=y
CONFIG_INPUT=y
CONFIG_INPUT_GPIO_KEYS=y
CONFIG_PM=n
CONFIG_PM_DEVICE=n
CONFIG_PM_DEVICE_RUNTIME=n