72 lines
1.8 KiB
Rust
72 lines
1.8 KiB
Rust
|
#![no_std]
|
||
|
|
#![no_main]
|
||
|
|
teleprobe_meta::target!(b"nrf52840-dk");
|
||
|
|
|
||
|
|
use defmt::{assert_eq, *};
|
||
|
|
use embassy_executor::Spawner;
|
||
|
|
use embassy_nrf::buffered_uarte::{self, BufferedUarte};
|
||
|
|
use embassy_nrf::{bind_interrupts, peripherals, uarte};
|
||
|
|
use embedded_io_async::{Read, Write};
|
||
|
|
use {defmt_rtt as _, panic_probe as _};
|
||
|
|
|
||
|
|
bind_interrupts!(struct Irqs {
|
||
|
|
UARTE0_UART0 => buffered_uarte::InterruptHandler<peripherals::UARTE0>;
|
||
|
|
});
|
||
|
|
|
||
|
|
#[embassy_executor::main]
|
||
|
|
async fn main(_spawner: Spawner) {
|
||
|
|
let p = embassy_nrf::init(Default::default());
|
||
|
|
let mut config = uarte::Config::default();
|
||
|
|
config.parity = uarte::Parity::EXCLUDED;
|
||
|
|
config.baudrate = uarte::Baudrate::BAUD1M;
|
||
|
|
|
||
|
|
let mut tx_buffer = [0u8; 1024];
|
||
|
|
let mut rx_buffer = [0u8; 1024];
|
||
|
|
|
||
|
|
let mut u = BufferedUarte::new(
|
||
|
|
p.UARTE0,
|
||
|
|
p.TIMER0,
|
||
|
|
p.PPI_CH0,
|
||
|
|
p.PPI_CH1,
|
||
|
|
p.PPI_GROUP0,
|
||
|
|
Irqs,
|
||
|
|
p.P1_03,
|
||
|
|
p.P1_02,
|
||
|
|
config.clone(),
|
||
|
|
&mut rx_buffer,
|
||
|
|
&mut tx_buffer,
|
||
|
|
);
|
||
|
|
|
||
|
|
info!("uarte initialized!");
|
||
|
|
|
||
|
|
let (mut rx, mut tx) = u.split();
|
||
|
|
|
||
|
|
let mut buf = [0; 1024];
|
||
|
|
for (j, b) in buf.iter_mut().enumerate() {
|
||
|
|
*b = j as u8;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Write 1024b. This causes the rx buffer to get exactly full.
|
||
|
|
unwrap!(tx.write_all(&buf).await);
|
||
|
|
unwrap!(tx.flush().await);
|
||
|
|
|
||
|
|
// Read those 1024b.
|
||
|
|
unwrap!(rx.read_exact(&mut buf).await);
|
||
|
|
for (j, b) in buf.iter().enumerate() {
|
||
|
|
assert_eq!(*b, j as u8);
|
||
|
|
}
|
||
|
|
|
||
|
|
// The buffer should now be unclogged. Write 1024b again.
|
||
|
|
unwrap!(tx.write_all(&buf).await);
|
||
|
|
unwrap!(tx.flush().await);
|
||
|
|
|
||
|
|
// Read should work again.
|
||
|
|
unwrap!(rx.read_exact(&mut buf).await);
|
||
|
|
for (j, b) in buf.iter().enumerate() {
|
||
|
|
assert_eq!(*b, j as u8);
|
||
|
|
}
|
||
|
|
|
||
|
|
info!("Test OK");
|
||
|
|
cortex_m::asm::bkpt();
|
||
|
|
}
|