Go Down

Topic: How to reset Due´s pending Interrupts (Read 1 time) previous topic - next topic


Hi All,

For debouncing a button connected to an interrupt I used the following procedure in the past:
disable the Interupt in its associated routine
and start a timer to match in a few milliseconds
in timer´s routine delete the flag in EIFR
and re enable the interrupt.

Now Im using the Due with the new core and tried the following to delete the pending flag:

and / or
Pio* pPio = PIOA;
uint32_t dwReg = pPio->PIO_ISR;

but every time i do attachInterrupt(45, Menu_Button, FALLING); after that
the routine starts immediately.

I would be happy about every hint.


Hello aSchindler,
I noticed you're clearing PIOC and enabling PIOA. What's your button's PIO? Regards!




Sorry abut confusion I use 3 Buttons and posted the code from different ones.

It is working!!! Thanks for this sugestion.

My problem is solved but just for curiosity because i spend so many hours for searching the pending flag. How can I reset pending Interrupts?

Thank you guys.

Go Up

Please enter a valid email to subscribe

Confirm your email address

We need to confirm your email address.
To complete the subscription, please click the link in the email we just sent you.

Thank you for subscribing!

via Egeo 16
Torino, 10131