SAMC21N Xplained Pro contains two mechanical buttons
connected to the SAMC21N. One button is
the RESET button connected to the reset line and the other is a generic user
configurable button. When a button is pressed it will drive the I/O line to GND.
Info: There is
no pull-up resistor connected to the generic user button. Remember to enable the
internal pull-up in the SAMC21N to use
the button.
Table 1. Mechanical Buttons
| SAMC21N
pin |
Function |
Shared functionality |
| RESETN |
RESET |
Shield, Shield(2), and EDBG |
| PB19 |
GPIO for User Button |
- |