which is best to power up """ STM32VLDISCOVERY """ via 5V pins and a ground or 3,3V ???
also which is best to for Digital Input for STM32VLDISCOVERY, using 5v or 3,3V ???
In the data sheet I found that bouth of them works. And when I tryed it, bouth works but in the data sheet reset button and pin PA0(user button) are related to 3,3V.
so wich is the best chice for an industrial project ???