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STM32F151xx vref questions

Question asked by mackinnon.calum on Sep 21, 2011

 

Hi,

Vrefint – Looking for a better description of how this voltage is formed/used.  When using an external Vref+, is Vrefint tied to it or to VDDa? How would we expect the PVD and BOR functions to operate if Vref+ is at  a different level (e.g. 2.8V) vs VDD/VDDa?

Anyone got a good place to go read up on this?

Cheers
Calum

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