embassy/tests/rp/src/bin/uart_buffered.rs

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2022-09-26 05:32:45 +02:00
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::{assert_eq, *};
use embassy_executor::Spawner;
use embassy_rp::interrupt;
use embassy_rp::uart::{BufferedUart, Config, State, Uart};
use embedded_io::asynch::{Read, Write};
use {defmt_rtt as _, panic_probe as _};
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_rp::init(Default::default());
info!("Hello World!");
let (tx, rx, uart) = (p.PIN_0, p.PIN_1, p.UART0);
let config = Config::default();
let uart = Uart::new_blocking(uart, tx, rx, config);
let irq = interrupt::take!(UART0_IRQ);
let tx_buf = &mut [0u8; 32];
let rx_buf = &mut [0u8; 32];
let mut state = State::new();
let mut uart = BufferedUart::new(&mut state, uart, irq, tx_buf, rx_buf);
let data = [0xC0, 0xDE];
uart.write(&data).await.unwrap();
let mut buf = [0; 2];
uart.read(&mut buf).await.unwrap();
assert_eq!(buf, data);
info!("Test OK");
cortex_m::asm::bkpt();
}