Adventures in TinyAVR 1-Series

[Mike_C]

@Forsythe P. Jones

Do you mean you use ULP (32khz clock) literally all the time, and the Anduril UI still works? Is there a reasonable way to switch out of ULP at least some of the time, when more CPU is needed?

I use ULP all the time but with my own firmware, never tried Anduril. Switching clock is easy, not and issue for me unless I’m doing it during off press. So far I have not needed to switch clock from ULP but my firmware isn’t complete yet.

@Forsythe P. Jones

IIRC the avr-1 has an internal RC clock that is calibrated at the factory. It’s still nowhere near as accurate as a crystal, but maybe it could be used to measure the OTC capacitance by timing the recharge when the light is turned on. Is accuracy better than 10% really needed to distinguish between a short and long press anyway? I’d expect short press < 150ms, long > 300ms, or something like that, where it’s ok for in-between measurements to not be definite. So 10% either way won’t matter.

No, it won’t matter but I don’t really care, OTSM works fine for me so I personally couldn’t be bothered with all the above.