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Power supply 5v then 3v is it possible ?

Question asked by julien.terrier on Sep 10, 2015
Latest reply on Sep 11, 2015 by julien.terrier
I use  STM32F429I Discovery-Board to make my project and my question is about power supply available on this board.

I would to know,if it's possible to recover 3V from P2 if  I supply the board by an external dc source  with 5v on P1 ?

I want to use these 3v to supply an RS232 driver to reach the good logic lvl for USART protocol.