Universal Asynchronous Receiver Transmitter (UART)

lbuild module: modm:platform:uart

The UART buffer configuration is implemented as C++ template arguments:

using namespace modm::platform;
// Using only hardware buffers for Tx and Rx (both 1 symbol)
using UartN = BufferedUart<U(s)artHalN>;
// using only TX software buffer
using UartN = BufferedUart<U(s)artHalN, UartTxBuffer<512>>;
// using only RX software buffer
using UartN = BufferedUart<U(s)artHalN, UartRxBuffer<256>>;
// using both TX and RX software buffers
using UartN = BufferedUart<U(s)artHalN, UartTxBuffer<512>, UartRxBuffer<256>>;

Using FreeRTOS buffers

A special buffer implementation is available for FreeRTOS that uses the proper queue implementation to sleep and wake up the calling thread:

// using both TX and RX software buffers
using UartTxRxN = BufferedUart<U(s)artHalN, UartTxBufferFreeRtos<512>, UartRxBufferFreeRtos<256>>;

This module is only available for stm32.

Dependencies

Limited availability: Check with 'lbuild discover' if this module is available for your target!