58 lines
1.5 KiB
Rust
58 lines
1.5 KiB
Rust
#![no_std]
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#![no_main]
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#![feature(type_alias_impl_trait)]
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use defmt::*;
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use embassy_executor::executor::Spawner;
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use embassy_nrf::buffered_uarte::{BufferedUarte, State};
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use embassy_nrf::{interrupt, uarte};
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use embedded_io::asynch::{BufRead, Write};
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use futures::pin_mut;
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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_nrf::init(Default::default());
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let mut config = uarte::Config::default();
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config.parity = uarte::Parity::EXCLUDED;
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config.baudrate = uarte::Baudrate::BAUD115200;
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let mut tx_buffer = [0u8; 4096];
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let mut rx_buffer = [0u8; 4096];
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let irq = interrupt::take!(UARTE0_UART0);
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let mut state = State::new();
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// Please note - important to have hardware flow control (https://github.com/embassy-rs/embassy/issues/536)
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let u = BufferedUarte::new(
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&mut state,
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p.UARTE0,
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p.TIMER0,
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p.PPI_CH0,
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p.PPI_CH1,
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irq,
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p.P0_08,
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p.P0_06,
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p.P0_07,
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p.P0_05,
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config,
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&mut rx_buffer,
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&mut tx_buffer,
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);
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pin_mut!(u);
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info!("uarte initialized!");
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unwrap!(u.write_all(b"Hello!\r\n").await);
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info!("wrote hello in uart!");
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loop {
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info!("reading...");
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let buf = unwrap!(u.fill_buf().await);
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info!("read done, got {}", buf);
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// Read bytes have to be explicitly consumed, otherwise fill_buf() will return them again
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let n = buf.len();
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u.consume(n);
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}
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}
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