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CraigComberbach / CTMU

Charge Time Measurement Unit
MIT License
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Auto-Calibration #1

Open CraigComberbach opened 9 years ago

CraigComberbach commented 9 years ago

Automatically calibrate the CTMU so that it will charge to ~75% (Chosen so I can get the maximum resolution change, but I can still see if I need to go higher and recalibrate).

This can be done in a number of ways: Current used (55uA, 5.5uA, and 0.55 uA) Duration of charge Current tweak +/- 63%

I'd rather adjust in that order.

CraigComberbach commented 9 years ago

This isn't working as well as I would hope. It seems to overshoot small capacitance's and then saturate them, never recovering.

Also, changing the current decadely first is a bad idea. It can change the output by as much as 700 A2D ticks, so I had better need a massive change to require that kind of change.