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Visitor II
March 6, 2020
Question

Auto-wakeup from low-power mode(standby mode) for STwinkT

  • March 6, 2020
  • 1 reply
  • 536 views

from this video in another product, i did understand how to make the stm32 product go to standy. But how do i do the auto wakeup from low power mode. I saw from the reference Manual for stm32l4

To wakeup from Standby mode, there is no need to configure the EXTI Line 18.

But how do i exactly make it wake up from standby mode?

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    1 reply

    ST Employee
    March 6, 2020

    Hi @reokyouma​ , I suggest you to check the AN4746, where you can find all the details to wake up an STM32L4xx MCU from stand-by mode. In particular, you have to use one of the WKUP pins. In 5.3.3 chapter of the Ref manual RM0432 you can understand how to do it: in the HAL libraries the function to be used is HAL_PWR_EnableWakeUpPin( … )

    0690X00000DYrxzQAD.png

    Regards