Arduino Library Calibration functions
The ATM90E26 Datasheet has an extensive list of calibration registers. Of these the ones we are most interested in are:
- Ugain for Voltage gain
- IgainL for Live current line gain
These also affect the checksum2 stored in the device and have to be updated together. The library provides a CalcCheckSum function to help in evaluating the checksums the ASIC needs when the gain values are changed.