STM32L496 Discovery - ADC issues

[Platysum]

Hi, I currently have some troubles with the ADC and DAC function on the STM32L496AG-DISCOVERY. I successfully used these two on a STM32F407-DISCOVERY but things similar or close to what I already done don't work on the L496.

import time

dac = pyb.DAC('PA4', bits=12)
adc = pyb.ADC('PA1')

while 1:
    dac.write(2048)
    print(adc.read())
    time.sleep(1)

Simple enought on the F407 but on the L496 there is no DAC function and the ADC function return 0 or 4095 when it doesn't make everything reboot.

Some clues about what is happening ?