esp-hal/esp32c3-hal/examples/read_efuse.rs
2022-07-22 11:41:58 +02:00

50 lines
1.2 KiB
Rust

//! 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,
RtcCntl,
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_cntl = RtcCntl::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_cntl.set_super_wdt_enable(false);
rtc_cntl.set_wdt_enable(false);
wdt0.disable();
wdt1.disable();
writeln!(serial0, "MAC address {:02x?}", Efuse::get_mac_address()).unwrap();
writeln!(
serial0,
"Flash Encryption {:?}",
Efuse::get_flash_encryption()
)
.unwrap();
loop {}
}