From 1078f6f4e7c8473013c46543663cb6ca6b0e0c3d Mon Sep 17 00:00:00 2001 From: Dario Nieuwenhuis Date: Tue, 2 May 2023 19:35:02 +0200 Subject: [PATCH] stm32/test: workaround #1426 --- tests/stm32/src/bin/usart_dma.rs | 3 +++ tests/stm32/src/bin/usart_rx_ringbuffered.rs | 7 +++++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/tests/stm32/src/bin/usart_dma.rs b/tests/stm32/src/bin/usart_dma.rs index de6cd41d1..62444f0a8 100644 --- a/tests/stm32/src/bin/usart_dma.rs +++ b/tests/stm32/src/bin/usart_dma.rs @@ -94,6 +94,9 @@ async fn main(_spawner: Spawner) { let rx_fut = async { rx.read(&mut rx_buf).await.unwrap(); }; + + // note: rx needs to be polled first, to workaround this bug: + // https://github.com/embassy-rs/embassy/issues/1426 join(rx_fut, tx_fut).await; assert_eq!(tx_buf, rx_buf); diff --git a/tests/stm32/src/bin/usart_rx_ringbuffered.rs b/tests/stm32/src/bin/usart_rx_ringbuffered.rs index 2c4a8fdf4..9d75dbe55 100644 --- a/tests/stm32/src/bin/usart_rx_ringbuffered.rs +++ b/tests/stm32/src/bin/usart_rx_ringbuffered.rs @@ -145,13 +145,16 @@ async fn main(spawner: Spawner) { #[embassy_executor::task] async fn transmit_task(mut tx: UartTx<'static, board::Uart, board::TxDma>) { + // workaround https://github.com/embassy-rs/embassy/issues/1426 + Timer::after(Duration::from_millis(100) as _).await; + let mut rng = ChaCha8Rng::seed_from_u64(1337); info!("Starting random transmissions into void..."); let mut i: u8 = 0; loop { - let mut buf = [0; 32]; + let mut buf = [0; 256]; let len = 1 + (rng.next_u32() as usize % buf.len()); for b in &mut buf[..len] { *b = i; @@ -172,7 +175,7 @@ async fn receive_task(mut rx: RingBufferedUartRx<'static, board::Uart, board::Rx let mut i = 0; let mut expected = 0; loop { - let mut buf = [0; 100]; + let mut buf = [0; 256]; let max_len = 1 + (rng.next_u32() as usize % buf.len()); let received = match rx.read(&mut buf[..max_len]).await { Ok(r) => r,