AVR Oscillator Stability

brad · **Joined:** Fri Mar 26, 2010 10:30 pm **Posts:** 1863

I knew the internal oscillators weren't that good, but I had no idea how much they changed for tiny variations in temperature!

Maybe I should be switching to crystals...

Chuckt · **Joined:** Sun Mar 28, 2010 1:36 pm **Posts:** 684

The MSP430 from TI had a demo where you rubbed the chip and it was a temperature sensor. I'm wondering if they were polling the built in oscillator too.

brad · **Joined:** Fri Mar 26, 2010 10:30 pm **Posts:** 1863

if they were using the internal oscillator then I am sure it would have had an effect on the reading.

AVR Oscillator Stability

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