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Leroy3
Associate II
December 4, 2023
Solved

EXTI limits for STM32L562

STM32CubeIDE does not give me an options to select PE15 as an external interrupt source.

The documentation , RM0438 suggests there are 15 possible external interrupts.  Which is true?

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Sarra.SBest answer
ST Employee
December 4, 2023

Hello @Leroy3, 

It is possible to select PE15 as GPIO_EXTI15 

SarraS_0-1701705618563.png

Could you share a screenshot of your issue 

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.
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2 replies

Sarra.SBest answer
ST Employee
December 4, 2023

Hello @Leroy3, 

It is possible to select PE15 as GPIO_EXTI15 

SarraS_0-1701705618563.png

Could you share a screenshot of your issue 

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.
Leroy3Author
Associate II
December 4, 2023

Yes.  That was my mistake.  Somehow I accidently setup PB1 and PB2 as EXTI instead of outputs.  And didn't notice the possibility to select a pin as an external input source.  Thank-you

 

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