34 lines
849 B
Rust
34 lines
849 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 defmt::*;
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use embassy_executor::Spawner;
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use embassy_stm32::dma::NoDma;
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use embassy_stm32::interrupt;
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use embassy_stm32::usart::{Config, Uart};
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use heapless::String;
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use {defmt_rtt as _, panic_probe as _};
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#[embassy_executor::main]
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async fn main(_spawner: Spawner) {
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let p = embassy_stm32::init(Default::default());
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info!("Hello World!");
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let config = Config::default();
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let irq = interrupt::take!(UART4);
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let mut usart = Uart::new(p.UART4, p.PA1, p.PA0, irq, p.DMA1_CH3, 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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info!("Writing...");
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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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