I have an Arduino Due board. There are two sets of RX/TX lights on the board. The set closest to the DC barrel jack are connected to the ATMega16u2, as they light up when ever I use the "programming" port. The other set, which are just above the power and pin 13 leds, what are they connected to? When I use the SerialUSB class, and use the native port, are those leds supposed to light up? I feel like I should know this, but I can't figure out what functions use those LEDs! I know from looking at the pinout diagram at the top of this forum, that they are infact attached to the SAM3X, and that they aren't broken since I tested them with a sketch I made.
Sorry for so many questions, I just want to figure out what function those LEDs are attached to!