33 lines
851 B
Rust
33 lines
851 B
Rust
|
#![no_std]
|
||
|
|
#![no_main]
|
||
|
|
#![feature(type_alias_impl_trait)]
|
||
|
|
|
||
|
|
use defmt::{assert_eq, *};
|
||
|
|
use embassy_executor::Spawner;
|
||
|
|
use embassy_rp::uart::{Config, Uart};
|
||
|
|
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 mut uart = Uart::new(uart, tx, rx, p.DMA_CH0, p.DMA_CH1, config);
|
||
|
|
|
||
|
|
// We can't send too many bytes, they have to fit in the FIFO.
|
||
|
|
// This is because we aren't sending+receiving at the same time.
|
||
|
|
|
||
|
|
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();
|
||
|
|
}
|