Hi Yong,
There are many factors on baseline changing. Basically, if you use same Modulator clock, Sense clock, Sense clock mode, Resolution and IDAC settings with SmarSense, baselines will not change.
Yes. Manual tuning will ask for good production consistence. In other words, with good manual tuning, you can also pick up NG products effectively.
In my mind, some parameters are important to guarantee the consistence of products when using manual tuning (it should work for SmartSense too):
1. IDACs,
2. Raw counts level with no touch,
3. Baselines initialized after power on,
4. Sensor signals with fixed touch size and materials,
5. Raw counts/Baselines differences among all sensors.
6. SNR.
Thanks,
Ryan
