Aplex Technology APC-3229A - Manual (Page 82)

APC-3XX9A User Manual
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Step 4. Select Device to calibrate, then you can start to do Advanced Calibration.
NOTE: Recommend to use a stylus during Advanced Calibration for greater accuracy.
Plot Calibration Data Check this function and a touch panel linearity comparison
graph appears when you have finished Advanced Calibration.
The blue lines show linearity before calibration and black lines
show linearity after calibration.
Turn off EEPROM storage The function disable for calibration data to write in Controller.
The default setting is Enable.