Ok, I am sticking with user error/poor wiring.
I just bootloaded & downloaded a simple sketch, both succeeded on first pass.
Datecode on chip: 1050
The Rx/Tx wires do not overlap the crystal pins.
Ok, I am sticking with user error/poor wiring.
I just bootloaded & downloaded a simple sketch, both succeeded on first pass.
Datecode on chip: 1050
The Rx/Tx wires do not overlap the crystal pins.