All, So, I just let the magic smoke out of my third REX build. Not sure exactly what went wrong yet. Hoping for a bit of help investigating.
1) Has anyone built a functional REX with the pre-castellated boards from OSH park. I don't think this is the problem, but hoping to verify 2) Can someone measure a resistance for me? I'm reading 2 ohms across 3.3v and gnd. You can measure this between the '3V3' and 'GND' connections at the JTAG port. Clearly 2 ohms is not right, and I haven't found what the problem is yet. I've de-populated the board of everything but the CPLD and flash and the resistance is still 2ohms. Thanks, -Josh