You read the port. On Tue, 14 Jan 2014 14:48:40 +0100 dfx <d...@dfx.it> 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, when I press any key is called the same > ISR (PCINT3_vect) and a single flag is set (PCIE3). > > Question: How do I know which button was actually pressed? > > thank you very much > _______________________________________________ AVR-GCC-list mailing list AVR-GCC-list@nongnu.org https://lists.nongnu.org/mailman/listinfo/avr-gcc-list
