Hi all, I’m an iCE40 newbie and have a few questions! I’ve just bought a B2 and I want to interface it to a UM245R. This can supply both 5V and 3V3 VCC to the B2. So, should I connect the 5V from the UM245R to the B2, or the 3V3? Or is this not possible, and I should power both the B2 and the UM245R from USB cables?
Also, are pins 14-17 connected directly to the 4Mbit SPI flash, and so should I avoid using these pins?
Many thanks & hope you all have a happy festive season.