I have an SMD version of the Ardiuno Uno board. I successfully loaded the LIFA firmware. My issue is that as soon as I plug in the USB cable to the Uno, pins 3, 4, 5, 6 ,11 and 12 go HIGH. This happens with nothing running, LabVIEW not even open.
See this forum response. I'm not sure if some defaults are set in the sketch. I say this because of this blog where Mr. Lewis describes the bootloader defaults. (Pins default to high impedance input except for pin 13). I also read somewhere that Atmel suggests that any unused pins should be set to inputs with the internal pull-up resistor.
Of course you can set the pins to anything you want after bootup using LabVIEW.
