esp-hal/hil-test/tests/uart_tx_rx.rs
Dániel Buga 99bf346898
Remove the need to manually pass clocks around (#1999)
* Clean up passing clocks to drivers

* Update changelog

* Initialise Clocks in a critical section

* Fix calling now() before init

* Fix doc

* Fix esp-wifi migration guide

* Add safety comment

* Update tests
2024-09-04 14:13:51 +00:00

76 lines
1.6 KiB
Rust

//! UART TX/RX Test
//!
//! Folowing pins are used:
//! TX GPIO2 / GPIO9 (esp32s2 and esp32s3)
//! RX GPIO3 / GPIO10 (esp32s2 and esp32s3)
//!
//! Connect TX and RX pins.
//% CHIPS: esp32 esp32c2 esp32c3 esp32c6 esp32h2 esp32s2 esp32s3
#![no_std]
#![no_main]
use esp_hal::{
gpio::Io,
peripherals::{UART0, UART1},
prelude::*,
uart::{UartRx, UartTx},
Blocking,
};
use hil_test as _;
use nb::block;
struct Context {
tx: UartTx<'static, UART0, Blocking>,
rx: UartRx<'static, UART1, Blocking>,
}
#[cfg(test)]
#[embedded_test::tests]
mod tests {
use defmt::assert_eq;
use super::*;
#[init]
fn init() -> Context {
let peripherals = esp_hal::init(esp_hal::Config::default());
let io = Io::new(peripherals.GPIO, peripherals.IO_MUX);
let (tx, rx) = hil_test::common_test_pins!(io);
let tx = UartTx::new(peripherals.UART0, tx).unwrap();
let rx = UartRx::new(peripherals.UART1, rx).unwrap();
Context { tx, rx }
}
#[test]
#[timeout(3)]
fn test_send_receive(mut ctx: Context) {
let byte = [0x42];
ctx.tx.flush_tx().unwrap();
ctx.tx.write_bytes(&byte).unwrap();
let read = block!(ctx.rx.read_byte());
assert_eq!(read, Ok(0x42));
}
#[test]
#[timeout(3)]
fn test_send_receive_bytes(mut ctx: Context) {
let bytes = [0x42, 0x43, 0x44];
let mut buf = [0u8; 3];
ctx.tx.flush_tx().unwrap();
ctx.tx.write_bytes(&bytes).unwrap();
ctx.rx.read_bytes(&mut buf).unwrap();
assert_eq!(buf, bytes);
}
}