42 lines
1.0 KiB
Rust
42 lines
1.0 KiB
Rust
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#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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#[path = "../example_common.rs"]
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mod example_common;
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use core::fmt::Write;
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use core::str::from_utf8;
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use embassy::executor::Spawner;
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use embassy_stm32::spi::{Config, Spi};
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use embassy_stm32::time::Hertz;
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use embassy_stm32::Peripherals;
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use embassy_traits::spi::FullDuplex;
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use example_common::*;
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use heapless::String;
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#[embassy::main]
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async fn main(_spawner: Spawner, p: Peripherals) {
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info!("Hello World!");
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let mut spi = Spi::new(
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p.SPI1,
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p.PB3,
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p.PB5,
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p.PB4,
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p.DMA1_CH3,
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p.DMA1_CH2,
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Hertz(1_000_000),
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Config::default(),
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);
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for n in 0u32.. {
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let mut write: String<128> = String::new();
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let mut read = [0; 128];
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core::write!(&mut write, "Hello DMA World {}!\r\n", n).unwrap();
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spi.read_write(&mut read[0..write.len()], write.as_bytes())
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.await
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.ok();
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info!("read via spi+dma: {}", from_utf8(&read).unwrap());
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}
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}
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