Hi, i start design on G4 and am confused with internal ref in MX.
1. Internal REF for ADC isnt real internal, but Vref
2.Internal ref for comparators is 1/2 1/4 3/4 ... , but from what ?
3. ADC stop working without VREF+ pin voltage, but comparator works
4. ADC start working enable out internal ref to VREF buff
5. internal ref can be selected to one from 3 voltages , but after select is global for ??periph ?
Can some ST make info short and clean on this pls.
