2021-02-24 08:19 AM
Hello.
What is the value of the internal reference voltage of STM32WB55RGV6 MCU?
Is it 1,212 V or 2,048 / 2,5 V?
Solved! Go to Solution.
2021-02-24 08:52 AM
VREFINT is an internal reference voltage. It can get connected to some ADC input. REF_BUF when used is connected to the ADC VREF input.
2021-02-24 08:29 AM
Voltage reference buffer and Embedded voltage reference are different devices.
2021-02-24 08:35 AM
Do you mean these are two different sources of ADC reference voltage?
2021-02-24 08:52 AM
VREFINT is an internal reference voltage. It can get connected to some ADC input. REF_BUF when used is connected to the ADC VREF input.