Original schematic for this board does not include some required pins. The 20qfn version of the CP2102 does not have a DTR pin required to send proper reset signal to the AVR during programming.
Need to switch to 24qfn or 28qfn and add a couple of extra passive components
Original schematic for this board does not include some required pins. The 20qfn version of the CP2102 does not have a DTR pin required to send proper reset signal to the AVR during programming.
Need to switch to 24qfn or 28qfn and add a couple of extra passive components
References: http://forum.arduino.cc/index.php?topic=180861.0