Sorry for the newbie post here but I am just getting started w/ the FRDM-KL25Z board and am trying to understand something:
What is the significance of the 2 USB ports on the board? I see one of them can be used for debugging and loading of code. However, what happens in a production design that needs a single USB port to connect to a computer where the computer is acting as the host? How do you then load code into the board for initial rollout and upgrades?