STM32L475 - STOP2 multiple wake up modes
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‎2021-02-23 11:26 AM
I have the STM32L475 working in STOP2 wake up as WFE based on the RTC. I would now like to add in an external interrupt source (WFI). There doesn't appear to be a way to use both a WFI and a WFE as wake up. The only way I could see would be to have an external clock provide similar timing as the RTC, but that would defeat a lot of the low power benefits. Is there anyway the RTC wake up can be gated with an external signal?
Solved! Go to Solution.
- Labels:
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Power
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RTC
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STM32L4 Series
Accepted Solutions
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‎2021-02-23 12:28 PM
External pin can generate an event, too - read the EXTI chapter in RM.
JW
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‎2021-02-23 12:28 PM
External pin can generate an event, too - read the EXTI chapter in RM.
JW
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‎2021-02-23 4:08 PM
Excellent. Thanks Jan!
