Introduction and Measurement:
- A brief introduction to
contributing factors of crystal frequency inaccuracy
- Explanation of how to measure the
frequency of the 32.768 kHz crystal clock on the tinyAVR 1-Series and megaAVR
0-Series
Examples:
- An example showing how the RTC
can compensate for the static crystal error
- An example showing how the RTC,
internal temperature sensor, and the ADC can be used to compensate for static
crystal error and error due to temperature drift
- Four examples available in Atmel
| START, two examples on frequency measurement and two examples showing
compensation algorithms