STM32 MCUs Boards and hardware tools

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Hi,I am using STM32L431CCT6 MCU in my design. I have space limitation on my PCB and did not place pull up/pull down resistors on unused pins. Is there a problem? What is the recommendation here?

 My boot up time is about 30mSec. I would like to know how the pins behave during boot up. Does it behave as high impedance i/p or as o/p sourcing/sinking current? In my design I am shorting two IO pins. Is there a chance during boot up one can sourc...

SG.13 by Associate
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STM32F777 1.125 Volt on VCAP

Is this a normal reading?Havent installed ALL caps yet. I think I had bad contatc between SWCLK and connector, could this have caused it not to be recognized by cubeprogrammer?I had a F2 with 1.188 volt wich I could program, communicate with via prog...