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ADC Reference STM32F334R8, invalid posting

edemier9
Associate II
Posted on October 28, 2015 at 17:30

My fault. Post invalid. I looked at the schematics of the nucleo boards and mistook SD_VREF+ for VREF+. Sorry.

Hi.

In STM32F334R8 PB12 is connected to VREF+ for the ADCs.

I have made a HW design using PB12 for other purpose. However I need to use ADC2 but I did not find any way to switch the ADC reference internally (!) to VDDA. It looks as if I must cut a wire on my board and change my HW design only to connect PB12 to VDDA. It that so?

Coming from other �C vendors I am used to ADCs that may run on VDDA as a reference or on a dedicated internal Reference. 

Any hints?

#stm32-stm32f334-adc-reference
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