Adc16 reading full value with 0 volts input (MK02FN128xxx10)

[GustavoRicci]

I followed all the steps of fsl_adc16.c and fsl_adc16.h but I am not able to read the correct adc value.
When I read the adc and the input value is 0 volts, my reading reference appears as 65536(full)

[Robin_Shen]

Hi GustavoRicci,

Have you refer the ADC examples in MCUXpresso SDK? 
Check:
Whether VREFH and VREFL are powered(refer: 3.7.1.5 ADC Reference Options)
Whether correct ADC Channel (SC1n[ADCH]) is select(refer: 3.7.1.3 ADCx Connections/Channel Assignment)

my reading reference appears as 65536(full)

Do you mean when ADC Channel (SC1n[ADCH])=11101, the ADCx_Rn show you full value? If so, please check if the ADC pin are well connect to external signal(refer: 10.3.1 K02F Signal Multiplexing and Pin Assignments).

Best Regards,
Robin
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