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https://github.com/esp-rs/esp-hal.git
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30 lines
709 B
Rust
30 lines
709 B
Rust
#![no_std]
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#![no_main]
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use core::fmt::Write;
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use esp32s2_hal::{pac::Peripherals, prelude::*, RtcCntl, Serial, Timer};
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use nb::block;
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use panic_halt as _;
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use xtensa_lx_rt::entry;
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#[entry]
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fn main() -> ! {
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let peripherals = Peripherals::take().unwrap();
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let mut timer0 = Timer::new(peripherals.TIMG0);
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let mut rtc_cntl = RtcCntl::new(peripherals.RTC_CNTL);
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let mut serial0 = Serial::new(peripherals.UART0).unwrap();
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// Disable MWDT and RWDT (Watchdog) flash boot protection
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timer0.disable();
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rtc_cntl.set_wdt_global_enable(false);
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timer0.start(40_000_000u64);
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loop {
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writeln!(serial0, "Hello world!").unwrap();
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block!(timer0.wait()).unwrap();
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}
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}
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