All EXTI interrupts work except PA3

[HMSEdinburge]

Hello,

It's a discussion continuity of the thread: https://community.st.com/t5/stm32-mcus-products/ext-interrupt-conflict-on-stm32h7/td-p/742235
I replace PA3 instead of PA1, now all interrupt sw works except PA3... whats happen to this PA3 interrupt??

 

[mƎALLEm]

I don’t know. 

Did you test the example I shared as it is or not? 
Do you confirm you are using STM32H723 NUCLEO board? PA3 is on CN9/pin 1:

It's working from my side.

 

[HMSEdinburge]

yes, i use your switch case, and its working! thanks. But PA3 still not...

[MM..1]

Primary check with scope PA3 states, and secondary only one EXTI3 can be used. Check dont code other GPIOX3?