NaxdyOrg/embassy
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

rp/uart: use lockfree ringbuffer.

Browse source 
This gets rid of another PeripheralMutex usage.
This commit is contained in:
Dario Nieuwenhuis 2022-11-07 00:27:21 +01:00
parent fa37452359
commit 7b838d0336
6 changed files with 758 additions and 386 deletions
tests/rp/src/bin
uart_buffered.rs

13
tests/rp/src/bin/uart_buffered.rs
View file

@ -5,7 +5,7 @@
use defmt::{assert_eq, *};
use embassy_executor::Spawner;
use embassy_rp::interrupt;
use embassy_rp::uart::{BufferedUart, Config, State, Uart};
use embassy_rp::uart::{BufferedUart, Config};
use embedded_io::asynch::{Read, Write};
use {defmt_rtt as _, panic_probe as _};
@ -17,25 +17,22 @@ async fn main(_spawner: Spawner) {
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; 16];
let rx_buf = &mut [0u8; 16];
let mut state = State::new();
let mut uart = BufferedUart::new(&mut state, uart, irq, tx_buf, rx_buf);
let mut uart = BufferedUart::new(uart, irq, tx, rx, tx_buf, rx_buf, config);
// Make sure we send more bytes than fits in the FIFO, to test the actual
// bufferedUart.
let data = [
1_u8, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 31, 32,
1u8, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 31,
];
uart.write_all(&data).await.unwrap();
info!("Done writing");
let mut buf = [0; 32];
let mut buf = [0; 31];
uart.read_exact(&mut buf).await.unwrap();
assert_eq!(buf, data);