58 lines
1.6 KiB
Rust
58 lines
1.6 KiB
Rust
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#![feature(type_alias_impl_trait)]
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#[path = "../serial_port.rs"]
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mod serial_port;
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use async_io::Async;
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use embassy::executor::task;
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use embassy::io::{AsyncBufRead, AsyncBufReadExt, AsyncWrite, AsyncWriteExt};
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use embassy::util::Forever;
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use embassy_std::Executor;
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use log::*;
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use nix::sys::termios;
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use self::serial_port::SerialPort;
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#[task]
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async fn run() {
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// Open the serial port.
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let baudrate = termios::BaudRate::B115200;
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let port = SerialPort::new("/dev/ttyACM0", baudrate).unwrap();
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//let port = Spy::new(port);
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// Use async_io's reactor for async IO.
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// This demonstrates how embassy's executor can drive futures from another IO library.
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// Essentially, async_io::Async converts from AsRawFd+Read+Write to futures's AsyncRead+AsyncWrite
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let port = Async::new(port).unwrap();
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// This implements futures's AsyncBufRead based on futures's AsyncRead
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let port = futures::io::BufReader::new(port);
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// We can then use FromStdIo to convert from futures's AsyncBufRead+AsyncWrite
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// to embassy's AsyncBufRead+AsyncWrite
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let mut port = embassy::io::FromStdIo::new(port);
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info!("Serial opened!");
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loop {
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let mut buf = [0u8; 256];
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let n = port.read(&mut buf).await.unwrap();
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info!("read {:?}", &buf[..n]);
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}
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}
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static EXECUTOR: Forever<Executor> = Forever::new();
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fn main() {
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env_logger::builder()
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.filter_level(log::LevelFilter::Debug)
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.filter_module("async_io", log::LevelFilter::Info)
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.format_timestamp_nanos()
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.init();
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let executor = EXECUTOR.put(Executor::new());
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executor.run(|spawner| {
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spawner.spawn(run()).unwrap();
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});
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}
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