5.4.2 SAM E70 Xplained Ultra Evaluation Kit

Two SAM E70 Xplained Ultra Evaluation Kits are connected to each other by SERCOM USART lines (TxD, RxD, RTS, and CTS) through EXT1 connector and connected to the PC terminal through EDBG port.

Note: Click here to access the source code for this application configuration. Alternatively, it is also available in the GitHub reference_apps repository.
Figure 5-54. Block Diagram (SAM E70 Xplained Ultra Evaluation Kit)

In this section, only hardware handshaking part will be explained whereas the remaining are covered in the Basic configuration section. Here, RTS and CTS lines are controlled manually, whereas in SAM D21 it is not. Adhere to the steps outlined for the basic configuration of the SAM E70 Xplained Ultra Evaluation Kit.

  1. To add and configure MPLAB Harmony components using the MCC, see SAM E70 Xplained Ultra Evaluation Kit.
  2. In Pin Configuration, configure the PB2 and PB3 pins for RTS and CTS.
    Figure 5-55. Pin Configuration
  3. In MCC Configuration Options, click and expand System > Contex-M7 Configuration > SysTick.
  4. Select Enable SysTick.
    Figure 5-56. Enable the Systick Timer
  5. Click Generate in Project Resources as shown in Step 9 of the SAM E70 Xplained Ultra Evaluation Kit section.