I am a newer for kinetis chip.
Now I try " xx\freescale\KSDK_1.3.0\examples\frdm22f\driver_examples\adc16" example, I do like the below steps:
#1, Remove the R23, and connect DC voltage source to J24.1 "ADC0_DP0"
#2, Use "chnConfig.chIdx = (adc16_chn_t)kAdc16chn0" to select ADC channel
Now I can read the correct voltage when DC voltage source is < 1.65V, but for the voltage >1.65V, I can't correct the voltage. The questions is that the ADC input voltage is 0~3.3V because Vrefh is 3.3V? If yes, how I can read >1.65V voltage when ADC module work on 16bit ADC signal mode?