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 -- Domenico Formenton Tel. 06 92731757 Fax. 178 2250847 Cell. 333 7075929 --- Questa e-mail è priva di virus e malware perché è attiva la protezione avast! Antivirus. http://www.avast.com
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