drivers: uart: esp32: reset tx fifo during driver init (6dc51290) · Commits · Wenxi XU / zephyr

Resets uart tx fifo during driver initialization to have a well defined initial condition mainly preventing unwanted characters being sent Signed-off-by:

Marcio Ribeiro <marcio.ribeiro@espressif.com> (cherry picked from commit )

drivers/serial/uart_esp32.c

+1 −0

Changes for drivers/serial/uart_esp32.c: 1 added line, 0 removed lines.
Original line number	Diff line number	Diff line
		@@ -276,6 +276,7 @@ static int uart_esp32_configure(const struct device *dev, const struct uart_conf
		uart_hal_set_rxfifo_full_thr(&data->hal, UART_RX_FIFO_THRESH);
		uart_hal_set_txfifo_empty_thr(&data->hal, UART_TX_FIFO_THRESH);
		uart_hal_rxfifo_rst(&data->hal);
		uart_hal_txfifo_rst(&data->hal);

		switch (cfg->parity) {
		case UART_CFG_PARITY_NONE:

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