You read the port.
On Tue, 14 Jan 2014 14:48:40 +0100
dfx wrote:
> Hello,
>
> my problem is the following:
>
> suppose we have 8 keys all connected to the same port (for. eg. D) of
> an AVR processor (eg. ATmega324) and that all pins have the interrupt
> enabled.
>
> If I understand correctly
Hello,
In the interrupt routine, just read the PIND register and look at which one
changed ...
Regards
Francois
On Tue, Jan 14, 2014 at 2:48 PM, dfx wrote:
> Hello,
>
> my problem is the following:
>
> suppose we have 8 keys all connected to the same port (for. eg. D) of an
> AVR processor (
