Cut and paste this URL to share the unmodified register and value:
https://regviz.com/r/stm32/stm32wl3/STM32WL33/DAC/DHR#0x0
DHR register
DACDHR[5:0]: DAC channel 6-bit data These bits are written by software which
specifies 6-bit data for DAC channel.
https://github.com/modm-io/cmsis-svd-stm32