Wondering if anyone has done this, I saw someone got it working on the Teensy 2.0, but obviously it will be different on the 3.x.

Need to use the transmitter for Serial2 and Serial3 on Teensy 3.1, but I also need the RX pins to be inputs. I'm guessing I can just change the register with the RXEN bit, but I don't know if it's re-enabled somewhere else outside of the begin() function.

Thanks in advance!