mirror of
https://github.com/esp-rs/esp-hal.git
synced 2025-09-28 04:40:52 +00:00
e612bd1120
* Add some config options to the UART driver * Use esp-println 0.2.0 * Remove the NoPin type * Serial constructor now doesn't return a Result anymore
32 lines
859 B
Rust
32 lines
859 B
Rust
#![no_std]
|
|
#![no_main]
|
|
|
|
use core::fmt::Write;
|
|
|
|
use esp32s2_hal::{clock::ClockControl, pac::Peripherals, prelude::*, RtcCntl, Serial, Timer};
|
|
use nb::block;
|
|
use panic_halt as _;
|
|
use xtensa_lx_rt::entry;
|
|
|
|
#[entry]
|
|
fn main() -> ! {
|
|
let peripherals = Peripherals::take().unwrap();
|
|
let system = peripherals.SYSTEM.split();
|
|
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
|
|
|
|
let mut timer0 = Timer::new(peripherals.TIMG0, clocks.apb_clock);
|
|
let mut rtc_cntl = RtcCntl::new(peripherals.RTC_CNTL);
|
|
let mut serial0 = Serial::new(peripherals.UART0);
|
|
|
|
// Disable MWDT and RWDT (Watchdog) flash boot protection
|
|
timer0.disable();
|
|
rtc_cntl.set_wdt_global_enable(false);
|
|
|
|
timer0.start(1u64.secs());
|
|
|
|
loop {
|
|
writeln!(serial0, "Hello world!").unwrap();
|
|
block!(timer0.wait()).unwrap();
|
|
}
|
|
}
|