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Example Summary

The following example configures the UART at 9600bps to transmit and receive data. The device should be configured in external loopback mode. The device remains in SLEEP mode while waiting for an interrupt.

Peripherals & Pin Assignments

• UART0
  • UART0_TX / PA8
  • UART0_RX / PA9

BoosterPacks, Board Resources & Jumper Settings

• Boosterpack connections:
  • J1.4 - PA8 (GPIO_UART_TX_PIN)
  • J1.3 - PA9 (GPIO_UART_RX_PIN)
• Jumper settings:
  • J101 [7:8] OFF
  • J101 [9:10] OFF

Example Usage

To use this application in external loopback mode, place a jumper between PA9 (UART0_RX) and PA8 (UART0_TX). Compile, load and run the example. Through the external loopback, the UART will automatically start to transmit and receive from itself.