Skip to main content
Associate
January 29, 2025
Solved

Wake-up over I2C

  • January 29, 2025
  • 1 reply
  • 917 views

Hello!
Is any body aware about how to wakeup a STM32 series MCU from sleep over I2C? 
So far I was aware of wake-up over GPI/Brown out Reset etc, but wake up over I2C?? Is this really possible? Please let me know if anyone has prior experience at this. Have a great day!

Best answer by STTwo-32

Hello @abjames and welcome to the ST Community.

I’ve seen the example of the STM32H563. It Even has the wake up capability from stop mode in a few cases using interrupteur. You may have a look at this example: I2C_WakeUpFromStop So, Check the PWR chapter of your MCU on the reference manuel. The. Have a look on the peripheral chapter. That should help you to discover the wake up capability.

Best Regards.

STTwo-32

1 reply

STTwo-32
STTwo-32Best answer
ST Technical Moderator
January 29, 2025

Hello @abjames and welcome to the ST Community.

I’ve seen the example of the STM32H563. It Even has the wake up capability from stop mode in a few cases using interrupteur. You may have a look at this example: I2C_WakeUpFromStop So, Check the PWR chapter of your MCU on the reference manuel. The. Have a look on the peripheral chapter. That should help you to discover the wake up capability.

Best Regards.

STTwo-32

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
abjamesAuthor
Associate
January 29, 2025

Thank you @STTwo-32 . This really helps.!