Yes, it is real time, but due to interrupts you have to manage critical sections... | Hacker News

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		vvoid on Jan 19, 2024 \| parent \| context \| favorite \| on: Building a USB SNES Controller Yes, it is real time, but due to interrupts you have to manage critical sections with cli() and sei() and your time base is a 16.000 MHz crystal. Most instructions for ATmega and ATtiny execute in 1 clock cycle so writing deterministic, time-critical code is straightforward.

chybby on Jan 20, 2024 [–]

Thanks for the tip to turn off interrupts when working with precise timing!

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