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I am unable to get analog input voltages on all 16 advertised ADC pins of the FRDM-KL25Z. I'm not sure if it's an issue with MBED, the Freescale board or the microprocessor itself. According to https://elmicro.com/files/freescale/frdm-kl25z_pinouts_rev_1_0.pdf, there are 16 ADC pins. As I have tested them, there are:
Thirteen functional ADC pins:
Three non-functional ADC pins:
The code I used to test these pins and make these observations is here: https://developer.mbed.org/users/skanderian/code/TestAnalogInPins/
I am particularly interested in getting pin PTE21 as a 16 bit ADC pin if at all possible. Thanks in advance for your help!
- Sami Kanderian