16.8.3 Quick Start Guide for Using DMA with SERCOM USART

The supported board list:

  • SAM D21 Xplained Pro

  • SAM R21 Xplained Pro

  • SAM D11 Xplained Pro

  • SAM DA1 Xplained Pro

  • SAM L21 Xplained Pro

  • SAM L22 Xplained Pro

  • SAM C21 Xplained Pro

This quick start will receive eight bytes of data from the PC terminal and transmit back the string to the terminal through DMA. In this use case the USART will be configured with the following settings:

  • Asynchronous mode

  • 9600 Baudrate

  • 8-bits, No Parity and one Stop Bit

  • TX and RX enabled and connected to the Xplained Pro Embedded Debugger virtual COM port