Hello,
According to the STM32L496 reference manual, the DAC should be disabled before entering STOP2 mode, which implies that it doesn’t operate in STOP2.
However, in STM32CubeMX there is a configuration option for DAC output — external pin, on-chip peripheral, or both.
Earlier, when I selected external pin, the DAC output was not working in STOP2 mode (as expected). But now, after selecting on-chip peripheral, it is working even in STOP2 mode.
I am using DAC_OUT1 and DAC_OUT2 as threshold references for an internal comparator (not external output pins).
My questions:
Is it safe and valid to use the DAC with the on-chip peripheral option in STOP2 mode?
Or should I restrict my design to STOP1 mode for reliable operation?
Appreciate your help and clarification.
Thank you,
Mounika
