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8 years, 8 months ago.
How to configure manually VREF for ADC (FRDM-K64F)
Hello,
I'd like to modify the reference voltage for the ADC. Currently, it's working from GND to 3.3V and I'd like to use external pins to set my voltage (with a voltage divider). I have understood that i have to configure REFSEL to use an external voltage (V_ALTH and V_ALTL) but i don't know how to link an analog input to these voltage.
Thank you in advance to any one who may be able to give me some ideas
Regards,
Lyricks
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