40 lines
922 B
Rust
40 lines
922 B
Rust
#![no_std]
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#![no_main]
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use cortex_m_rt::entry;
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use defmt::*;
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use embassy_executor::Executor;
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use embassy_stm32::usart::{Config, Uart};
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use static_cell::StaticCell;
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use {defmt_rtt as _, panic_probe as _};
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#[embassy_executor::task]
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async fn main_task() {
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let p = embassy_stm32::init(Default::default());
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let config = Config::default();
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let mut usart = Uart::new_blocking(p.UART7, p.PF6, p.PF7, config).unwrap();
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unwrap!(usart.blocking_write(b"Hello Embassy World!\r\n"));
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info!("wrote Hello, starting echo");
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let mut buf = [0u8; 1];
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loop {
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unwrap!(usart.blocking_read(&mut buf));
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unwrap!(usart.blocking_write(&buf));
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}
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}
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static EXECUTOR: StaticCell<Executor> = StaticCell::new();
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#[entry]
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fn main() -> ! {
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info!("Hello World!");
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let executor = EXECUTOR.init(Executor::new());
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executor.run(|spawner| {
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unwrap!(spawner.spawn(main_task()));
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})
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}
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