https://www.ccsinfo.com/forum/viewtopic.php?t=401&view=previous
CCS :: View topic - external interrupt on rb0
view topicexternal interruptccs
https://vtuupdates.com/embedded-c/external-interrupt-to-toggle-an-led-on-off/
Demonstrate the use of an external interrupt to toggle an LED On/Off
Sep 3, 2023 - Demonstrate the use of an external interrupt to toggle an LED On/Off
use ofexternal interrupt
https://developerhelp.microchip.com/xwiki/bin/view/products/mcu-mpu/32bit-mcu/sam/samd21-mcu-overview/peripherals/eic/
SAM D21 External Interrupt Controller (EIC) Overview - Developer Help
SAM D21 External Interrupt Controller (EIC) Overview
external interruptsamcontrollereicoverview
https://lkml.org/lkml/2012/8/20/574
LKML: Seiji Aguchi: [RFC][PATCH v2 1/3] efivars: Disable external interrupt while holding...