I did learn something from this question. I wasn't previously familiar with "watchdogs": void crawl_into_hole_and_die() { while(1); // let the

I did learn something from this question. I wasn't previously familiar with "watchdogs": void crawl_into_hole_and_die() { while(1); // let the watchdog get us. } In embedded devices, there are usually things called "Watchdogs". The Watchdog will reset the processor if it is not kicked within a certain amount of time. So in the main loop (usually) there are instructions to Kick the Watchdog. This usually writes a special value to the Watchdog register. This function has an infinite loop, so the watchdog will reset the processor. – Robert