I selected the STM32L051C6T6 for a small project (package LQFP32)
The datasheet states that this microcontroller has a VREFint out pin (PB1, additionnal functions).
I just can't find out how to output the internal analog reference voltage on this pin. There is absolutely no piece of information on how to do this on the datasheets.
I enabled the VREFINT bit in ADC_CCR register (I can actyally read the Vref value with the ADC), I tried differents MODER settings for the GPIOB (alternate mode, analog mode), had a look into PWR_CSR register and the VREFIN
TRDYF is 1.
But still no 1.224V on the output.
Does anyone have an idea ?