Doesn't do much other than reply with an increasing pattern, but at least the basic wiring is now in place.
"TRIGGER" is now D0 on the fx2 port "LED" is now D1 on the fx2 port, "SPI MOSI" is now D4 on the fx2 "SPI MISO" is now D5 "SPI CLOCK" is now D6
Basic framework. now we can build on it.