Disconnecting the On-board Debugger

The on-board debugger and level shifters can be completely disconnected from the AVR128DB48.

The block diagram below shows all connections between the debugger and the AVR128DB48. The rounded boxes represent connections to the board edge. The signal names shown are also printed in silkscreen on the bottom side of the board.

To disconnect the debugger, cut the straps shown in Figure 2.

Attention: Cutting the GPIO straps to the on-board debugger will disable the virtual serial port, programming, debugging, and data streaming. Cutting the power supply strap will disconnect the on-board power supply.
Tip: Any connection that is cut can be reconnected using solder. Alternatively, a 0Ω 0402 resistor can be mounted.
Tip: When the debugger is disconnected, an external debugger can be connected to holes shown in Figure 2. Details about connecting an external debugger are described in Connecting External Debuggers.
Figure 1. On-Board Debugger Connections Block Diagram
Figure 2. On-Board Debugger Connection Cut Straps