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5.2.4 On-Board Debugger Implementation
PIC18F16Q40 Curiosity Nano features an on-board debugger that can be used to program and debug the
PIC18F16Q40 using ICSP. The on-board debugger also includes a virtual serial port (CDC) interface over UART and
debug GPIO. MPLAB
®
X IDE can be used as a front-end for the on-board debugger for programming and debugging.
MPLAB Data Visualizer can be used as a front-end for the CDC and debug GPIO.
5.2.4.1 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, since there
are little contaminations 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 4.1 On-Board Debugger
Overview .
Table 5-4. On-Board Debugger Connections
PIC18F16Q40
Pin Debugger Pin Function Shared Functionality
RB5 CDC TX UART RX (PIC18F16Q40 RX line) Edge connector
RB7 CDC RX UART TX (PIC18F16Q40 TX line) Edge connector
RA0 DBG0 ICSPDAT Edge connector
RA1 DBG1 ICSPCLK Edge connector
RC0 DBG2 SW0/GPIO Edge connector , SW0
RA3 DBG3 MCLR Edge connector
PIC18F16Q40 Curiosity Nano
Hardware User Guide
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2020 Microchip Technology Inc.
User Guide
DS50003047A-page 28