Simplicity Studio Uart Example -

// Send welcome message uart_send_string("Simplicity Studio UART Example\r\n"); uart_send_string("Type something, and I will echo it back:\r\n");

// Enable RX interrupt (optional but useful) USART_IntEnable(UART_HANDLE, USART_IEN_RXDATAV); NVIC_EnableIRQ(USART0_RX_IRQn); simplicity studio uart example

// Configure USART pins (using location specific to your board) // For example: Route TX to PA0, RX to PA1 GPIO_PinModeSet(gpioPortA, 0, gpioModePushPull, 1); // TX GPIO_PinModeSet(gpioPortA, 1, gpioModeInput, 0); // RX and I will echo it back:\r\n")

// Initialize USART USART_InitAsync(UART_HANDLE, &init); RX to PA1 GPIO_PinModeSet(gpioPortA

// Interrupt handler for receiving data void USART0_RX_IRQHandler(void) if (USART_IntGet(UART_HANDLE) & USART_IF_RXDATAV) rx_byte = USART_Rx(UART_HANDLE); // Echo the character back USART_Tx(UART_HANDLE, rx_byte);

// Function to initialize UART void uart_init(void) // Enable clock for USART CMU_ClockEnable(UART_CLOCK, true);

while (1) // Main loop does nothing – everything is interrupt driven __WFI(); // Wait for interrupt