Connecting External Debuggers - Microchip Technology ATtiny3217 Curiosity Nano Hardware User's Manual

Figure 3-10. Curiosity Nano Standard Pinout
Table 3-4. Programming and Debugging Interfaces
Curiosity Nano Pin
DBG0
DBG1
DBG2
DBG3
3.6

Connecting External Debuggers

Even though there is an on-board debugger, external debuggers can be connected directly to the ATtiny3217
Curiosity Nano to program/debug the ATtiny3217. The on-board debugger keeps all the pins connected to the
ATtiny3217 and board edge in tri-state when not actively used. Therefore, the on-board debugger will not interfere
with any external debug tools.
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2020 Microchip Technology Inc.
PS LED
NC
ID
CDC RX
DEBUGGER
CDC TX
DBG1
DBG2
CURIOSITY NANO
UPDI
UPDI
-
-
-
USB
™
ICSP
DATA
CLK
-
#MCLR
User Guide
ATtiny3217
Curiosity Nano
VBUS
VOFF
DBG3
DBG0
GND
VTG
SWD
SWDIO
SWCLK
-
#RESET
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