esp-hal/hil-test/tests/uart_regression.rs
Dániel Buga 92910bf1cb
Constructor consistency update (#2610)
* UART: only implement constructors with config, define ConfigError

* UART: only implement interrupt functions for Blocking

* I2C: fallible constructors

* Lcd/Cam

* SPI

* Update tests and examples

* Changelog

* Add note about ConfigError

* Fmt
2024-11-28 09:28:50 +00:00

43 lines
1.1 KiB
Rust

//! Misc UART TX/RX regression tests
//% CHIPS: esp32 esp32c2 esp32c3 esp32c6 esp32h2 esp32s2 esp32s3
#![no_std]
#![no_main]
#[cfg(test)]
#[embedded_test::tests]
mod tests {
use esp_hal::{
gpio::OutputPin,
prelude::*,
uart::{self, UartRx, UartTx},
};
use hil_test as _;
use nb::block;
#[test]
#[timeout(3)]
fn test_that_creating_tx_does_not_cause_a_pulse() {
let peripherals = esp_hal::init(esp_hal::Config::default());
let (rx, mut tx) = hil_test::common_test_pins!(peripherals);
let mut rx = UartRx::new(peripherals.UART1, uart::Config::default(), rx).unwrap();
// start reception
_ = rx.read_byte(); // this will just return WouldBlock
unsafe { tx.set_output_high(false, esp_hal::Internal::conjure()) };
// set up TX and send a byte
let mut tx = UartTx::new(peripherals.UART0, uart::Config::default(), tx).unwrap();
tx.flush_tx().unwrap();
tx.write_bytes(&[0x42]).unwrap();
let read = block!(rx.read_byte());
assert_eq!(read, Ok(0x42));
}
}