#![no_std] #![no_main] #![feature(type_alias_impl_trait)] #[path = "../example_common.rs"] mod example_common; use defmt::assert_eq; use embassy_executor::Spawner; use embassy_stm32::dma::NoDma; use embassy_stm32::interrupt; use embassy_stm32::usart::{Config, Uart}; use example_common::*; #[embassy_executor::main] async fn main(_spawner: Spawner) { let p = embassy_stm32::init(config()); info!("Hello World!"); // Arduino pins D0 and D1 // They're connected together with a 1K resistor. #[cfg(feature = "stm32f103c8")] let (tx, rx, usart, irq) = (p.PA9, p.PA10, p.USART1, interrupt::take!(USART1)); #[cfg(feature = "stm32g491re")] let (tx, rx, usart, irq) = (p.PC4, p.PC5, p.USART1, interrupt::take!(USART1)); #[cfg(feature = "stm32g071rb")] let (tx, rx, usart, irq) = (p.PC4, p.PC5, p.USART1, interrupt::take!(USART1)); #[cfg(feature = "stm32f429zi")] let (tx, rx, usart, irq) = (p.PG14, p.PG9, p.USART6, interrupt::take!(USART6)); #[cfg(feature = "stm32wb55rg")] let (tx, rx, usart, irq) = (p.PA2, p.PA3, p.LPUART1, interrupt::take!(LPUART1)); #[cfg(feature = "stm32h755zi")] let (tx, rx, usart, irq) = (p.PB6, p.PB7, p.USART1, interrupt::take!(USART1)); #[cfg(feature = "stm32u585ai")] let (tx, rx, usart, irq) = (p.PD8, p.PD9, p.USART3, interrupt::take!(USART3)); #[cfg(feature = "stm32h563zi")] let (tx, rx, usart, irq) = (p.PB6, p.PB7, p.LPUART1, interrupt::take!(LPUART1)); #[cfg(feature = "stm32c031c6")] let (tx, rx, usart, irq) = (p.PB6, p.PB7, p.USART1, interrupt::take!(USART1)); let config = Config::default(); let mut usart = Uart::new(usart, rx, tx, irq, NoDma, NoDma, config); // We can't send too many bytes, they have to fit in the FIFO. // This is because we aren't sending+receiving at the same time. let data = [0xC0, 0xDE]; usart.blocking_write(&data).unwrap(); let mut buf = [0; 2]; usart.blocking_read(&mut buf).unwrap(); assert_eq!(buf, data); info!("Test OK"); cortex_m::asm::bkpt(); }