Step 1. Optimal CTMU current selection

To achieve the maximum of sensitivity the sensors must be charged to the voltage level about 75% of AVdd . The rounding error depends on the charge delay parameter.The rounding error in percentage is (100/CTMU charge delay) of AVdd. The recommended minimum value for the CTMU charge delay is 8 (default charge delay ) .This provides charge to the optimal level with rounding error about +-12.5% of AVdd. MTouchDebugCurrent(…) function returns the CTMU current source settings when the optimal charge delay value is 8. Assign this value to MTOUCH_CTMU_CURRENT parameter in mTouchConfig.h.