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Hi
Can we use internal regulator for ref voltage of ADC of STM32L152? if you have experienced it please tel me how to do?
Which part exactly are you using? Some devices have +VREF internally bonded to VDDA, and -VREF internally bonded to VSSA. On devices with VREF pins *you* have to connect them to the supplies yourself, in your design. I'm reasonably sure there is not a magic software setting, but try reading the manuals.
Isn't VREFINT on CHANNEL 17?
www.st.com/.../CD00277537.pdf