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STM32F407 ADC with internale reference

Question asked by Hector Hector on Aug 9, 2017
Latest reply on Aug 9, 2017 by seb.fav

Hello All ; 

 

I use STM32f407 ; I connect Vref to VDDA to VDD ; 

 

but VDD is connected to super cap that can be change from 2,9V to 3,5 volt ; so my ADC reading would be change ; 

Does STM32F407 has internal Refence ? I did not understand that from the manual it says it has 1,2V internal reference 

 

if yes how can ı use it ; ? 

 

Thank you in Advanced 

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