I don't have one on me right now. But I'm looking for one. But from what I can tell, I don't think its transmitting at all and the reason for my suspicion is that both pins are set to
INPUT before the write. (i.e. at the time of the write to
TASKS_STARTTX register, both pins are in
Shouldn't they be set to
OUTPUT if we are going to set the state of a pin?