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ISeed
Associate III
April 4, 2019
Question

Wake interrupt on ADC pin threshold

  • April 4, 2019
  • 2 replies
  • 919 views

Hello,

I would like my STM32 to be able to wake up from sleep / standby by an interrupt caused by input on an analog pin passing a certain threshold (let's say, 2V).

Is this an existing capability?

How is it called? is there a way to look for this capability in tools, such as ST MCU Finder?

Thanks!

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2 replies

Vangelis Fortounas
Associate II
April 5, 2019

Yes.. Try to search for MCU with compararator (COMP) capability.

Inverted or/ and non inverted comparator's inputs can be assigned to pins, internal ref voltages, DAC outputs and can generate interrupts with configurable triggering.

ISeed
ISeedAuthor
Associate III
April 5, 2019

Thanks!