Table 4-1. LED Connection
PIC18F47Q10 Pin
Function
Shared Functionality
RE0
Yellow LED0
4.2.2
Mechanical Switch
PIC18F47Q10 Curiosity Nano has one mechanical switch. This is a generic user configurable switch.
When the switch is pressed, it will drive the I/O line to ground (GND).
Table 4-2. Mechanical Switch
PIC18F47Q10 Pin
Description
Shared Functionality
RE2
User switch (SW0)
4.2.3
Crystal
The PIC18F47Q10 Curiosity Nano board has a footprint for a 32.768 kHz crystal.
The crystal footprint is connected to the PIC18F47Q10 by default, but the GPIOs are routed out to the
edge connector through open solder straps. The two I/O lines routed to the edge connector are
disconnected by default to both reduce the chance of contention to the crystal as well as removing
excessive capacitance on the lines when using the crystal. To use the pins RC0 and RC1 as GPIO on the
edge connector, some hardware modification is needed. Add a solder blob to the open straps on the
bottom side to connect the routing. The crystal should be disconnected when using the pin as GPIO, as
this might harm the crystal.
Table 4-3. Crystal Connections
PIC18F47Q10 Pin
Function
Shared Functionality
RC0
SOSC0 (Crystal output)
RC1
SOSCI (Crystal input)
4.2.4
On-Board Debugger Implementation
PIC18F47Q10 Curiosity Nano features an on-board debugger that can be used to program and debug
the PIC18F47Q10 using ICSP. The on-board debugger also includes a Virtual Com port interface over
UART and DGI GPIO. MPLAB
®
X can be used as a front-end for the on-board debugger for programming
and debugging.
can be used as a front-end for the CDC and DGI GPIO.
4.2.4.1
On-Board Debugger Connections
The table below shows the connections between the target and the debugger section. All connections
between the target and the debugger are tri-stated as long as the debugger is not actively using the
interface, hence there is little contamination of the signals, the pins can be configured to anything the
user wants.
For further information on how to use the capabilities of the on-board debugger, see Section
PIC18F47Q10 Curiosity Nano
Hardware User Guide
©
2019 Microchip Technology Inc.
User Guide
DS40002103A-page 14
