zephyr/tests/drivers/uart/uart_async_api/boards/stm32f3_disco.overlay

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/* SPDX-License-Identifier: Apache-2.0 */
dut: &usart2 {
dmas = <&dma1 7 STM32_DMA_PERIPH_TX>,
<&dma1 6 STM32_DMA_PERIPH_RX>;
dma-names = "tx", "rx";
};