esp-hal/esp32s2-hal/examples/hello_world.rs
2022-02-14 18:04:48 +00:00

28 lines
566 B
Rust

#![no_std]
#![no_main]
use core::fmt::Write;
use esp32s2_hal::{pac::Peripherals, prelude::*, Serial, Timer};
use nb::block;
use panic_halt as _;
use xtensa_lx_rt::entry;
#[entry]
fn main() -> ! {
let peripherals = Peripherals::take().unwrap();
let mut timer0 = Timer::new(peripherals.TIMG0);
let mut serial0 = Serial::new(peripherals.UART0).unwrap();
// Disable watchdog timer
timer0.disable();
timer0.start(40_000_000u64);
loop {
writeln!(serial0, "Hello world!").unwrap();
block!(timer0.wait()).unwrap();
}
}