"Cygnal chips are JTAG and need a special cable."

DO as Dennis suggested and get a dev kit - they're only US$99 and include the cable

JTAG makes development and debugging sooooooo much easier.
As a beginner, you don't want to be messing with all the arcane (and often archaic) stuff of PROMs, debug monitors, etc.
Sure, you'll need to learn all that sometime - but it can wait.


See their advert near bottom left of this very site!