45 lines
1002 B
Rust
45 lines
1002 B
Rust
#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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use core::fmt::Write;
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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::dma::NoDma;
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use embassy_stm32::usart::{Config, Uart};
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use embassy_util::Forever;
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use heapless::String;
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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(p.UART7, p.PF6, p.PF7, p.DMA1_CH0, NoDma, config);
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for n in 0u32.. {
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let mut s: String<128> = String::new();
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core::write!(&mut s, "Hello DMA World {}!\r\n", n).unwrap();
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usart.write(s.as_bytes()).await.ok();
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info!("wrote DMA");
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}
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}
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static EXECUTOR: Forever<Executor> = Forever::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.put(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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