4.4 Embedded Debugger Implementation

SAM L22 Xplained Pro contain an Embedded Debugger (EDBG) that can be used to program and debug the ATSAML22N18A using Serial Wire Debug (SWD). The Embedded Debugger also include a Virtual Com port interface over UART, an Atmel Data Gateway Interface over SPI, and I²C and it includes four of the SAM L22 GPIOs. The kit also includes an XAM extension processor to the Embedded Debugger for on-board current measurement. Atmel Studio can be used as a front end for the Embedded Debugger.