1.2.2.2 SAMD20 Xplained Pro

The following figure shows the SAMD20 Xplained Pro board connected to PL460-EK expansion board.

Figure 1-50. SAMD20 Xplained Pro + PL460-EK

PL460-EK is connected to XPRO Interface connector (EXT1) of SAMD20 Xplained Pro. A 15V DC jack must be plugged into PL460-EK in order to supply the power for PLC transmission. For additional information about PL460-EK, refer to its user guide.

The USB connector of SAMD20 Xplained Pro can be used to:
  • See Application information messages on Console. UART baud-rate is configured at 115200 bps (it cannot be higher due to hardware limitations on this board).
  • Flash/debug the SAMD20 device with the on-board EDBG debugger
The Host Interface connection is done through EXT2 connector, where USART4 is mapped:
Figure 1-51. EXT2 USART4
IRQ pin is used to connect RTS signal from Host, which is required by Host Interface specification. The following figure shows the connection between Modem and Host:
Figure 1-52. Modem to Host Connection

For additional information about SAMD20 Xplained Pro, refer to its user guide.