64.1. Use DMA to receive and send UART data

64.1.1. Overview

In this example project, UART receives/sends data via DMA.

64.1.2. Port Settings

  • Serial port baud rate is set to 115200bps, with one stop bit and no parity bit

64.1.3. Note

  • The input string length should not exceed TEST_BUFF_SIZE defined in the program every time

64.1.4. Running the example

When the project runs correctly, manually input the char through the serial port, such as ‘1234567887654321’, and the serial port terminal will receive the following information:

UART DMA example
UART will send back received characters, echo every 16 bytes
1234567887654321