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UART Example

Overview

This sample is a cross-loopback test for UART2 and UART3. It covers multiple baud rates, parity modes, stop-bit configurations, polling, buffer handling, and stress tests.

Source file: src/rtsmart/examples/peripheral/uart/test_uart.c

Default Pin Mapping

• UART2: TX=11, RX=12

• UART3: TX=50, RX=51

Key APIs

• drv_uart_inst_create() / drv_uart_inst_destroy()

• drv_uart_set_config() / drv_uart_get_config()

• drv_uart_write() / drv_uart_read()

• drv_uart_poll() / drv_uart_recv_available()

• drv_uart_configure_buffer_size()

• drv_fpioa_set_pin_func()

Build and Run

cd src/rtsmart/examples/peripheral/uart
make
./test_uart

The sample has no command-line parameters.