//! This shows how to read selected information from eFuses.
//! e.g. the MAC address

#![no_std]
#![no_main]

use core::fmt::Write;

use esp32c3_hal::{
    clock::ClockControl,
    efuse::Efuse,
    pac::Peripherals,
    prelude::*,
    timer::TimerGroup,
    Rtc,
    Serial,
};
use panic_halt as _;
use riscv_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 rtc = Rtc::new(peripherals.RTC_CNTL);
    let mut serial0 = Serial::new(peripherals.UART0);
    let timer_group0 = TimerGroup::new(peripherals.TIMG0, &clocks);
    let mut wdt0 = timer_group0.wdt;
    let timer_group1 = TimerGroup::new(peripherals.TIMG1, &clocks);
    let mut wdt1 = timer_group1.wdt;

    // Disable watchdog timers
    rtc.swd.disable();
    rtc.rwdt.disable();
    wdt0.disable();
    wdt1.disable();

    writeln!(serial0, "MAC address {:02x?}", Efuse::get_mac_address()).unwrap();
    writeln!(
        serial0,
        "Flash Encryption {:?}",
        Efuse::get_flash_encryption()
    )
    .unwrap();

    loop {}
}