STM32L432KC internal reference

OPIAN · ‎2018-12-07

I am working with STM32L432KC in range VDD and VDDA 1.8-3.6V.

I have read the reference manual. It doesn't say anything about how to apply the internal reference 1.2V. as a reference of ADC and DAC?

Amel NASRI · ‎2018-12-07

Hello,

The "AN4555: Getting started with STM32L4 Series and STM32L4+ Series hardware development" (https://www.st.com/resource/en/application_note/dm00125306.pdf) describes what you need to do:

The internal voltage reference is enabled by setting the ENVR bit in the VREFBUF control and

status register (VREFBUF_CSR).

Please refer to the paragraph: ADC and DAC reference voltage.

-Amel

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