AVR16EB32 datasheet(40/46 Pages) MICROCHIP

40 / 46 page

AVR16EB32 Curiosity Nano

Appendix

User Guide

DS50003605B - 40

Figure 6-9. Connecting the Atmel-ICE to AVR16EB32 Curiosity Nano

VDD

Ground

DATA

AVR®

SAM

3 = UPDI

4 = VTG

5 = Unused

6 = Unused

7 = Unused

8 = Unused

1 = Unused

2 = GND

9 = Unused

10 = Unused

Atmel-ICE

USB

DEBUGGER

PS LED

CDC RX

CDC TX

DBG1

DBG2

VBUS

VOFF

DBG3

DBG0

GND

VTG

CURIOSITY NANO

To avoid contention between the external debugger and the on-board debugger,

do not start any programming/debug operation with the on-board debugger

through MPLAB® X IDE or mass storage programming while the external tool is

active.

6.6

Disconnecting the On-Board Debugger

The on-board debugger and level shifters can be disconnected from the AVR16EB32.

The power supply block diagram (Figure 4-5) shows all connections between the debugger and the

AVR16EB32. The signal names are also printed in silkscreen on the top or bottom side of the board.

To disconnect the debugger, cut the GPIO straps shown in Cut Straps.

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: Reconnect any cut connection by using solder. Alternatively, mount a 0Ω

0402 resistor.

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