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STM32F4Discovery - external VDD supply

Question asked by Aryan on Jun 4, 2013
Latest reply on Jun 4, 2013 by Clive One
Hi All,

Is it possible to use STM32f4Discovery without powering it’s ST Link section and associated LEDs.  External 5V (at P2 pin 3,4)  will power up ST Link section and associated LEDs.  Is it safe to remove JP1 and apply external 3.3V at VDD pin?  In this case some on board devices(IC U1, U2, U3, U5, U6, U7, U8, U9) using 3V supply will not receive power. Will this have any adverse effect on STM32F407 operation (latch up, ADC performance etc)?