Disconnecting The On-Board Debugger - Microchip Technology PIC16F15376 Curiosity Nano Hardware User's Manual

3.5

Disconnecting the On-Board Debugger

The block diagram below shows all connections between the debugger and the PIC16F15376 microcontroller. The
rounded boxes represent connections to the board edge on PIC16F15376 Curiosity Nano. The signal names shown
in Figure 3-1
Figure 3-6. On-Board Debugger Connections to the PIC16F15376
By cutting the GPIO straps with a sharp tool, as shown in
the PIC16F15376 are completely disconnected. To completely disconnect the target regulator and level shifter power
from the target, cut the Power Supply strap (J100) as shown in
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Info: The on-board level shifters will draw a small amount of current even when they are not in use. A
maximum of 10 µA can be drawn from the target power net, and an additional 2 µA can be drawn from
each I/O pin connected to a level shifter for a total of 20 µA. Disconnect the on-board debugger and level
shifters as described in Section
connected to a level shifter in tri-state to prevent leakage.
are printed in silkscreen on the bottom side of the board.
VBUS
VBUS
USB
LDO
VCC_P3V3
PA04/PA06
PA07
PA08
PA16
PA00
PA01
DIR x 5
Info: Cutting the connections to the debugger will disable programming, debugging, data streaming, and
the target power supply. The signals will also be disconnected from the board edge next to the on-board
debugger section.
Tip: Solder in 0Ω resistors across the footprints or short-circuit them with tin solder to reconnect any cut
signals.
PIC16F15376 Curiosity Nano
3.5 Disconnecting the On-Board Debugger
VOFF
Power Supply strap
LDO
DBG0
DBG1
DBG2
DBG3
Level-Shift
CDC TX
CDC RX
CDC RX
CDC TX
Figure 3-7, all I/Os connected between the debugger and
Figure 3-7.
User Guide
Curiosity Nano
and keep any I/O pin
VTG
Target Power strap
VCC_EDGE
GPIO straps
TARGET
DBG0
DBG1
DBG2
DBG3
50002900B-page 13