Difference between revisions of "KIR Interrupts.ino"
From AnalysIR WiKi
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Revision as of 09:11, 9 October 2019
This file contains a number of functions for handling interrupts and related items.
- KIR_initPCINT - this function initialises the MCU to handle the required PIINTs on the COL pins only. Col pins are set to INPUT_PULLUP and when a button is pressed the COL pin is pulled low, by the respective ROW pin. The resulting interrupt wakes the MCU up from sleep.
- KIR_enablePCint - this function clears any PCINT flags and enables interrupts for the COL pins.
- KIR_disablePCint - this function clears any PCINT flags and disables interrupts for the COL pins. However, we do not use/call this function and simply disable PCINT every time withing the PCINT ISRs.